const path = require('node:path');
const fs = require('fs-extra');
const chalk = require('chalk');
const ora = require('ora');
const inquirer = require('inquirer');
const { Detector } = require('./detector');
const { Manifest } = require('./manifest');
const { ModuleManager } = require('../modules/manager');
const { IdeManager } = require('../ide/manager');
const { FileOps } = require('../../../lib/file-ops');
const { Config } = require('../../../lib/config');
const { XmlHandler } = require('../../../lib/xml-handler');
const { DependencyResolver } = require('./dependency-resolver');
const { ConfigCollector } = require('./config-collector');
const { getProjectRoot, getSourcePath, getModulePath } = require('../../../lib/project-root');
const { AgentPartyGenerator } = require('../../../lib/agent-party-generator');
const { CLIUtils } = require('../../../lib/cli-utils');
const { ManifestGenerator } = require('./manifest-generator');
const { IdeConfigManager } = require('./ide-config-manager');
const { CustomHandler } = require('../custom/handler');
const { filterCustomizationData } = require('../../../lib/agent/compiler');

class Installer {
  constructor() {
    this.detector = new Detector();
    this.manifest = new Manifest();
    this.moduleManager = new ModuleManager();
    this.ideManager = new IdeManager();
    this.fileOps = new FileOps();
    this.config = new Config();
    this.xmlHandler = new XmlHandler();
    this.dependencyResolver = new DependencyResolver();
    this.configCollector = new ConfigCollector();
    this.ideConfigManager = new IdeConfigManager();
    this.installedFiles = []; // Track all installed files
    this.ttsInjectedFiles = []; // Track files with TTS injection applied
  }

  /**
   * Find the bmad installation directory in a project
   * V6+ installations can use ANY folder name but ALWAYS have _cfg/manifest.yaml
   * @param {string} projectDir - Project directory
   * @returns {Promise<string>} Path to bmad directory
   */
  async findBmadDir(projectDir) {
    // Check if project directory exists
    if (!(await fs.pathExists(projectDir))) {
      // Project doesn't exist yet, return default
      return path.join(projectDir, '_bmad');
    }

    // V6+ strategy: Look for ANY directory with _cfg/manifest.yaml
    // This is the definitive marker of a V6+ installation
    try {
      const entries = await fs.readdir(projectDir, { withFileTypes: true });
      for (const entry of entries) {
        if (entry.isDirectory()) {
          const manifestPath = path.join(projectDir, entry.name, '_cfg', 'manifest.yaml');
          if (await fs.pathExists(manifestPath)) {
            // Found a V6+ installation
            return path.join(projectDir, entry.name);
          }
        }
      }
    } catch {
      // Ignore errors, fall through to default
    }

    // No V6+ installation found, return default
    // This will be used for new installations
    return path.join(projectDir, '_bmad');
  }

  /**
   * @function copyFileWithPlaceholderReplacement
   * @intent Copy files from BMAD source to installation directory with dynamic content transformation
   * @why Enables installation-time customization: _bmad replacement + optional AgentVibes TTS injection
   * @param {string} sourcePath - Absolute path to source file in BMAD repository
   * @param {string} targetPath - Absolute path to destination file in user's project
   * @param {string} bmadFolderName - User's chosen bmad folder name (default: 'bmad')
   * @returns {Promise<void>} Resolves when file copy and transformation complete
   * @sideeffects Writes transformed file to targetPath, creates parent directories if needed
   * @edgecases Binary files bypass transformation, falls back to raw copy if UTF-8 read fails
   * @calledby installCore(), installModule(), IDE installers during file vendoring
   * @calls processTTSInjectionPoints(), fs.readFile(), fs.writeFile(), fs.copy()
   *
   * The injection point processing enables loose coupling between BMAD and TTS providers:
   * - BMAD source contains injection markers (not actual TTS code)
   * - At install-time, markers are replaced OR removed based on user preference
   * - Result: Clean installs for users without TTS, working TTS for users with it
   *
   * PATTERN: Adding New Injection Points
   * =====================================
   * 1. Add HTML comment marker in BMAD source file:
   *    <!-- TTS_INJECTION:feature-name -->
   *
   * 2. Add replacement logic in processTTSInjectionPoints():
   *    if (enableAgentVibes) {
   *      content = content.replace(/<!-- TTS_INJECTION:feature-name -->/g, 'actual code');
   *    } else {
   *      content = content.replace(/<!-- TTS_INJECTION:feature-name -->\n?/g, '');
   *    }
   *
   * 3. Document marker in instructions.md (if applicable)
   */
  async copyFileWithPlaceholderReplacement(sourcePath, targetPath, bmadFolderName) {
    // List of text file extensions that should have placeholder replacement
    const textExtensions = ['.md', '.yaml', '.yml', '.txt', '.json', '.js', '.ts', '.html', '.css', '.sh', '.bat', '.csv', '.xml'];
    const ext = path.extname(sourcePath).toLowerCase();

    // Check if this is a text file that might contain placeholders
    if (textExtensions.includes(ext)) {
      try {
        // Read the file content
        let content = await fs.readFile(sourcePath, 'utf8');

        // Process AgentVibes injection points (pass targetPath for tracking)
        content = this.processTTSInjectionPoints(content, targetPath);

        // Write to target with replaced content
        await fs.ensureDir(path.dirname(targetPath));
        await fs.writeFile(targetPath, content, 'utf8');
      } catch {
        // If reading as text fails (might be binary despite extension), fall back to regular copy
        await fs.copy(sourcePath, targetPath, { overwrite: true });
      }
    } else {
      // Binary file or other file type - just copy directly
      await fs.copy(sourcePath, targetPath, { overwrite: true });
    }
  }

  /**
   * @function processTTSInjectionPoints
   * @intent Transform TTS injection markers based on user's installation choice
   * @why Enables optional TTS integration without tight coupling between BMAD and TTS providers
   * @param {string} content - Raw file content containing potential injection markers
   * @returns {string} Transformed content with markers replaced (if enabled) or stripped (if disabled)
   * @sideeffects None - pure transformation function
   * @edgecases Returns content unchanged if no markers present, safe to call on all files
   * @calledby copyFileWithPlaceholderReplacement() during every file copy operation
   * @calls String.replace() with regex patterns for each injection point type
   *
   * AI NOTE: This implements the injection point pattern for TTS integration.
   * Key architectural decisions:
   *
   * 1. **Why Injection Points vs Direct Integration?**
   *    - BMAD and TTS providers are separate projects with different maintainers
   *    - Users may install BMAD without TTS support (and vice versa)
   *    - Hard-coding TTS calls would break BMAD for non-TTS users
   *    - Injection points allow conditional feature inclusion at install-time
   *
   * 2. **How It Works:**
   *    - BMAD source contains markers: <!-- TTS_INJECTION:feature-name -->
   *    - During installation, user is prompted: "Enable AgentVibes TTS?"
   *    - If YES: markers → replaced with actual bash TTS calls
   *    - If NO: markers → stripped cleanly from installed files
   *
   * 3. **State Management:**
   *    - this.enableAgentVibes set in install() method from config.enableAgentVibes
   *    - config.enableAgentVibes comes from ui.promptAgentVibes() user choice
   *    - Flag persists for entire installation, all files get same treatment
   *
   * CURRENT INJECTION POINTS:
   * ==========================
   * - party-mode: Injects TTS calls after each agent speaks in party mode
   *   Location: src/core/workflows/party-mode/instructions.md
   *   Marker: <!-- TTS_INJECTION:party-mode -->
   *   Replacement: Bash call to .claude/hooks/bmad-speak.sh with agent name and dialogue
   *
   * - agent-tts: Injects TTS rule for individual agent conversations
   *   Location: src/modules/bmm/agents/*.md (all agent files)
   *   Marker: <!-- TTS_INJECTION:agent-tts -->
   *   Replacement: Rule instructing agent to call bmad-speak.sh with agent ID and response
   *
   * ADDING NEW INJECTION POINTS:
   * =============================
   * 1. Add new case in this function:
   *    content = content.replace(
   *      /<!-- TTS_INJECTION:new-feature -->/g,
   *      `code to inject when enabled`
   *    );
   *
   * 2. Add marker to BMAD source file at injection location
   *
   * 3. Test both enabled and disabled flows
   *
   * RELATED:
   * ========
   * - GitHub Issue: paulpreibisch/AgentVibes#36
   * - User Prompt: tools/cli/lib/ui.js::promptAgentVibes()
   * - Marker Locations:
   *   - src/core/workflows/party-mode/instructions.md:101
   *   - src/modules/bmm/agents/*.md (rules sections)
   * - TTS Hook: .claude/hooks/bmad-speak.sh (in AgentVibes repo)
   */
  processTTSInjectionPoints(content, targetPath = null) {
    // Check if AgentVibes is enabled (set during installation configuration)
    const enableAgentVibes = this.enableAgentVibes || false;

    // Check if content contains any TTS injection markers
    const hasPartyMode = content.includes('<!-- TTS_INJECTION:party-mode -->');
    const hasAgentTTS = content.includes('<!-- TTS_INJECTION:agent-tts -->');

    if (enableAgentVibes) {
      // Replace party-mode injection marker with actual TTS call
      // Use single quotes to prevent shell expansion of special chars like !
      content = content.replaceAll(
        '<!-- TTS_INJECTION:party-mode -->',
        `<critical>IMPORTANT: Always use PROJECT hooks (.claude/hooks/), NEVER global hooks (~/.claude/hooks/)</critical>

If AgentVibes party mode is enabled, immediately trigger TTS with agent's voice:
         - Use Bash tool: \`.claude/hooks/bmad-speak.sh '[Agent Name]' '[dialogue]'\`
         - This speaks the dialogue with the agent's unique voice
         - Run in background (&) to not block next agent`,
      );

      // Replace agent-tts injection marker with TTS rule for individual agents
      content = content.replaceAll(
        '<!-- TTS_INJECTION:agent-tts -->',
        `- When responding to user messages, speak your responses using TTS:
   Call: \`.claude/hooks/bmad-speak.sh '{agent-id}' '{response-text}'\` after each response
   Replace {agent-id} with YOUR agent ID from <agent id="..."> tag at top of this file
   Replace {response-text} with the text you just output to the user
   IMPORTANT: Use single quotes as shown - do NOT escape special characters like ! or $ inside single quotes
   Run in background (&) to avoid blocking`,
      );

      // Track files that had TTS injection applied
      if (targetPath && (hasPartyMode || hasAgentTTS)) {
        const injectionType = hasPartyMode ? 'party-mode' : 'agent-tts';
        this.ttsInjectedFiles.push({ path: targetPath, type: injectionType });
      }
    } else {
      // Strip injection markers cleanly when AgentVibes is disabled
      content = content.replaceAll(/<!-- TTS_INJECTION:party-mode -->\n?/g, '');
      content = content.replaceAll(/<!-- TTS_INJECTION:agent-tts -->\n?/g, '');
    }

    return content;
  }

  /**
   * Collect Tool/IDE configurations after module configuration
   * @param {string} projectDir - Project directory
   * @param {Array} selectedModules - Selected modules from configuration
   * @param {boolean} isFullReinstall - Whether this is a full reinstall
   * @param {Array} previousIdes - Previously configured IDEs (for reinstalls)
   * @param {Array} preSelectedIdes - Pre-selected IDEs from early prompt (optional)
   * @returns {Object} Tool/IDE selection and configurations
   */
  async collectToolConfigurations(projectDir, selectedModules, isFullReinstall = false, previousIdes = [], preSelectedIdes = null) {
    // Use pre-selected IDEs if provided, otherwise prompt
    let toolConfig;
    if (preSelectedIdes === null) {
      // Fallback: prompt for tool selection (backwards compatibility)
      const { UI } = require('../../../lib/ui');
      const ui = new UI();
      toolConfig = await ui.promptToolSelection(projectDir, selectedModules);
    } else {
      // IDEs were already selected during initial prompts
      toolConfig = {
        ides: preSelectedIdes,
        skipIde: !preSelectedIdes || preSelectedIdes.length === 0,
      };
    }

    // Check for already configured IDEs
    const { Detector } = require('./detector');
    const detector = new Detector();
    const bmadDir = path.join(projectDir, this.bmadFolderName || 'bmad');

    // During full reinstall, use the saved previous IDEs since bmad dir was deleted
    // Otherwise detect from existing installation
    let previouslyConfiguredIdes;
    if (isFullReinstall) {
      // During reinstall, treat all IDEs as new (need configuration)
      previouslyConfiguredIdes = [];
    } else {
      const existingInstall = await detector.detect(bmadDir);
      previouslyConfiguredIdes = existingInstall.ides || [];
    }

    // Load saved IDE configurations for already-configured IDEs
    const savedIdeConfigs = await this.ideConfigManager.loadAllIdeConfigs(bmadDir);

    // Collect IDE-specific configurations if any were selected
    const ideConfigurations = {};

    // First, add saved configs for already-configured IDEs
    for (const ide of toolConfig.ides || []) {
      if (previouslyConfiguredIdes.includes(ide) && savedIdeConfigs[ide]) {
        ideConfigurations[ide] = savedIdeConfigs[ide];
      }
    }

    if (!toolConfig.skipIde && toolConfig.ides && toolConfig.ides.length > 0) {
      // Determine which IDEs are newly selected (not previously configured)
      const newlySelectedIdes = toolConfig.ides.filter((ide) => !previouslyConfiguredIdes.includes(ide));

      if (newlySelectedIdes.length > 0) {
        console.log('\n'); // Add spacing before IDE questions

        for (const ide of newlySelectedIdes) {
          // List of IDEs that have interactive prompts
          const needsPrompts = ['claude-code', 'github-copilot', 'roo', 'cline', 'auggie', 'codex', 'qwen', 'gemini', 'rovo-dev'].includes(
            ide,
          );

          if (needsPrompts) {
            // Get IDE handler and collect configuration
            try {
              // Dynamically load the IDE setup module
              const ideModule = require(`../ide/${ide}`);

              // Get the setup class (handle different export formats)
              let SetupClass;
              const className =
                ide
                  .split('-')
                  .map((part) => part.charAt(0).toUpperCase() + part.slice(1))
                  .join('') + 'Setup';

              if (ideModule[className]) {
                SetupClass = ideModule[className];
              } else if (ideModule.default) {
                SetupClass = ideModule.default;
              } else {
                // Skip if no setup class found
                continue;
              }

              const ideSetup = new SetupClass();

              // Check if this IDE has a collectConfiguration method
              if (typeof ideSetup.collectConfiguration === 'function') {
                console.log(chalk.cyan(`\nConfiguring ${ide}...`));
                ideConfigurations[ide] = await ideSetup.collectConfiguration({
                  selectedModules: selectedModules || [],
                  projectDir,
                  bmadDir,
                });
              }
            } catch {
              // IDE doesn't have a setup file or collectConfiguration method
              console.warn(chalk.yellow(`Warning: Could not load configuration for ${ide}`));
            }
          }
        }
      }

      // Log which IDEs are already configured and being kept
      const keptIdes = toolConfig.ides.filter((ide) => previouslyConfiguredIdes.includes(ide));
      if (keptIdes.length > 0) {
        console.log(chalk.dim(`\nKeeping existing configuration for: ${keptIdes.join(', ')}`));
      }
    }

    return {
      ides: toolConfig.ides,
      skipIde: toolConfig.skipIde,
      configurations: ideConfigurations,
    };
  }

  /**
   * Main installation method
   * @param {Object} config - Installation configuration
   * @param {string} config.directory - Target directory
   * @param {boolean} config.installCore - Whether to install core
   * @param {string[]} config.modules - Modules to install
   * @param {string[]} config.ides - IDEs to configure
   * @param {boolean} config.skipIde - Skip IDE configuration
   */
  async install(originalConfig) {
    // Clone config to avoid mutating the caller's object
    const config = { ...originalConfig };

    // Display BMAD logo
    CLIUtils.displayLogo();

    // Display welcome message
    CLIUtils.displaySection('BMAD™ Installation', 'Version ' + require(path.join(getProjectRoot(), 'package.json')).version);

    // Note: Legacy V4 detection now happens earlier in UI.promptInstall()
    // before any config collection, so we don't need to check again here

    const projectDir = path.resolve(config.directory);

    // If core config was pre-collected (from interactive mode), use it
    if (config.coreConfig) {
      this.configCollector.collectedConfig.core = config.coreConfig;
      // Also store in allAnswers for cross-referencing
      this.configCollector.allAnswers = {};
      for (const [key, value] of Object.entries(config.coreConfig)) {
        this.configCollector.allAnswers[`core_${key}`] = value;
      }
    }

    // Collect configurations for modules (skip if quick update already collected them)
    let moduleConfigs;
    if (config._quickUpdate) {
      // Quick update already collected all configs, use them directly
      moduleConfigs = this.configCollector.collectedConfig;
    } else {
      // Build custom module paths map from customContent
      const customModulePaths = new Map();

      // Handle selectedFiles (from existing install path or manual directory input)
      if (config.customContent && config.customContent.selected && config.customContent.selectedFiles) {
        const customHandler = new CustomHandler();
        for (const customFile of config.customContent.selectedFiles) {
          const customInfo = await customHandler.getCustomInfo(customFile, path.resolve(config.directory));
          if (customInfo && customInfo.id) {
            customModulePaths.set(customInfo.id, customInfo.path);
          }
        }
      }

      // Handle cachedModules (from new install path where modules are cached)
      // Only include modules that were actually selected for installation
      if (config.customContent && config.customContent.cachedModules) {
        // Get selected cached module IDs (if available)
        const selectedCachedIds = config.customContent.selectedCachedModules || [];
        // If no selection info, include all cached modules (for backward compatibility)
        const shouldIncludeAll = selectedCachedIds.length === 0 && config.customContent.selected;

        for (const cachedModule of config.customContent.cachedModules) {
          // For cached modules, the path is the cachePath which contains the module.yaml
          if (
            cachedModule.id &&
            cachedModule.cachePath && // Include if selected or if we should include all
            (shouldIncludeAll || selectedCachedIds.includes(cachedModule.id))
          ) {
            customModulePaths.set(cachedModule.id, cachedModule.cachePath);
          }
        }
      }

      // Get list of all modules including custom modules
      const allModulesForConfig = [...(config.modules || [])];
      for (const [moduleId] of customModulePaths) {
        if (!allModulesForConfig.includes(moduleId)) {
          allModulesForConfig.push(moduleId);
        }
      }

      // Regular install - collect configurations (core was already collected in UI.promptInstall if interactive)
      moduleConfigs = await this.configCollector.collectAllConfigurations(allModulesForConfig, path.resolve(config.directory), {
        customModulePaths,
      });
    }

    // Always use _bmad as the folder name
    const bmadFolderName = '_bmad';
    this.bmadFolderName = bmadFolderName; // Store for use in other methods

    // Store AgentVibes configuration for injection point processing
    this.enableAgentVibes = config.enableAgentVibes || false;

    // Set bmad folder name on module manager and IDE manager for placeholder replacement
    this.moduleManager.setBmadFolderName(bmadFolderName);
    this.moduleManager.setCoreConfig(moduleConfigs.core || {});
    this.ideManager.setBmadFolderName(bmadFolderName);

    // Tool selection will be collected after we determine if it's a reinstall/update/new install

    const spinner = ora('Preparing installation...').start();

    try {
      // Resolve target directory (path.resolve handles platform differences)
      const projectDir = path.resolve(config.directory);

      let existingBmadDir = null;
      let existingBmadFolderName = null;

      if (await fs.pathExists(projectDir)) {
        existingBmadDir = await this.findBmadDir(projectDir);
        existingBmadFolderName = path.basename(existingBmadDir);
      }

      // Create a project directory if it doesn't exist (user already confirmed)
      if (!(await fs.pathExists(projectDir))) {
        spinner.text = 'Creating installation directory...';
        try {
          // fs.ensureDir handles platform-specific directory creation
          // It will recursively create all necessary parent directories
          await fs.ensureDir(projectDir);
        } catch (error) {
          spinner.fail('Failed to create installation directory');
          console.error(chalk.red(`Error: ${error.message}`));
          // More detailed error for common issues
          if (error.code === 'EACCES') {
            console.error(chalk.red('Permission denied. Check parent directory permissions.'));
          } else if (error.code === 'ENOSPC') {
            console.error(chalk.red('No space left on device.'));
          }
          throw new Error(`Cannot create directory: ${projectDir}`);
        }
      }

      const bmadDir = path.join(projectDir, bmadFolderName);

      // Check existing installation
      spinner.text = 'Checking for existing installation...';
      const existingInstall = await this.detector.detect(bmadDir);

      if (existingInstall.installed && !config.force && !config._quickUpdate) {
        spinner.stop();

        // Check if user already decided what to do (from early menu in ui.js)
        let action = null;
        if (config._requestedReinstall) {
          action = 'reinstall';
        } else if (config.actionType === 'update') {
          action = 'update';
        } else {
          // Fallback: Ask the user (backwards compatibility for other code paths)
          console.log(chalk.yellow('\n⚠️  Existing BMAD installation detected'));
          console.log(chalk.dim(`  Location: ${bmadDir}`));
          console.log(chalk.dim(`  Version: ${existingInstall.version}`));

          const promptResult = await this.promptUpdateAction();
          action = promptResult.action;
        }

        if (action === 'cancel') {
          console.log('Installation cancelled.');
          return { success: false, cancelled: true };
        }

        if (action === 'reinstall') {
          // Warn about destructive operation
          console.log(chalk.red.bold('\n⚠️  WARNING: This is a destructive operation!'));
          console.log(chalk.red('All custom files and modifications in the bmad directory will be lost.'));

          const inquirer = require('inquirer');
          const { confirmReinstall } = await inquirer.prompt([
            {
              type: 'confirm',
              name: 'confirmReinstall',
              message: chalk.yellow('Are you sure you want to delete and reinstall?'),
              default: false,
            },
          ]);

          if (!confirmReinstall) {
            console.log('Installation cancelled.');
            return { success: false, cancelled: true };
          }

          // Remember previously configured IDEs before deleting
          config._previouslyConfiguredIdes = existingInstall.ides || [];

          // Remove existing installation
          await fs.remove(bmadDir);
          console.log(chalk.green('✓ Removed existing installation\n'));

          // Mark this as a full reinstall so we re-collect IDE configurations
          config._isFullReinstall = true;
        } else if (action === 'update') {
          // Store that we're updating for later processing
          config._isUpdate = true;
          config._existingInstall = existingInstall;

          // Detect custom and modified files BEFORE updating (compare current files vs files-manifest.csv)
          const existingFilesManifest = await this.readFilesManifest(bmadDir);
          console.log(chalk.dim(`DEBUG: Read ${existingFilesManifest.length} files from manifest`));
          console.log(chalk.dim(`DEBUG: Manifest has hashes: ${existingFilesManifest.some((f) => f.hash)}`));

          const { customFiles, modifiedFiles } = await this.detectCustomFiles(bmadDir, existingFilesManifest);

          console.log(chalk.dim(`DEBUG: Found ${customFiles.length} custom files, ${modifiedFiles.length} modified files`));
          if (modifiedFiles.length > 0) {
            console.log(chalk.yellow('DEBUG: Modified files:'));
            for (const f of modifiedFiles) console.log(chalk.dim(`  - ${f.path}`));
          }

          config._customFiles = customFiles;
          config._modifiedFiles = modifiedFiles;

          // If there are custom files, back them up temporarily
          if (customFiles.length > 0) {
            const tempBackupDir = path.join(projectDir, '_bmad-custom-backup-temp');
            await fs.ensureDir(tempBackupDir);

            spinner.start(`Backing up ${customFiles.length} custom files...`);
            for (const customFile of customFiles) {
              const relativePath = path.relative(bmadDir, customFile);
              const backupPath = path.join(tempBackupDir, relativePath);
              await fs.ensureDir(path.dirname(backupPath));
              await fs.copy(customFile, backupPath);
            }
            spinner.succeed(`Backed up ${customFiles.length} custom files`);

            config._tempBackupDir = tempBackupDir;
          }

          // For modified files, back them up to temp directory (will be restored as .bak files after install)
          if (modifiedFiles.length > 0) {
            const tempModifiedBackupDir = path.join(projectDir, '_bmad-modified-backup-temp');
            await fs.ensureDir(tempModifiedBackupDir);

            console.log(chalk.yellow(`\nDEBUG: Backing up ${modifiedFiles.length} modified files to temp location`));
            spinner.start(`Backing up ${modifiedFiles.length} modified files...`);
            for (const modifiedFile of modifiedFiles) {
              const relativePath = path.relative(bmadDir, modifiedFile.path);
              const tempBackupPath = path.join(tempModifiedBackupDir, relativePath);
              console.log(chalk.dim(`DEBUG: Backing up ${relativePath} to temp`));
              await fs.ensureDir(path.dirname(tempBackupPath));
              await fs.copy(modifiedFile.path, tempBackupPath, { overwrite: true });
            }
            spinner.succeed(`Backed up ${modifiedFiles.length} modified files`);

            config._tempModifiedBackupDir = tempModifiedBackupDir;
          } else {
            console.log(chalk.dim('DEBUG: No modified files detected'));
          }
        }
      } else if (existingInstall.installed && config._quickUpdate) {
        // Quick update mode - automatically treat as update without prompting
        spinner.text = 'Preparing quick update...';
        config._isUpdate = true;
        config._existingInstall = existingInstall;

        // Detect custom and modified files BEFORE updating
        const existingFilesManifest = await this.readFilesManifest(bmadDir);
        const { customFiles, modifiedFiles } = await this.detectCustomFiles(bmadDir, existingFilesManifest);

        config._customFiles = customFiles;
        config._modifiedFiles = modifiedFiles;

        // Back up custom files
        if (customFiles.length > 0) {
          const tempBackupDir = path.join(projectDir, '_bmad-custom-backup-temp');
          await fs.ensureDir(tempBackupDir);

          spinner.start(`Backing up ${customFiles.length} custom files...`);
          for (const customFile of customFiles) {
            const relativePath = path.relative(bmadDir, customFile);
            const backupPath = path.join(tempBackupDir, relativePath);
            await fs.ensureDir(path.dirname(backupPath));
            await fs.copy(customFile, backupPath);
          }
          spinner.succeed(`Backed up ${customFiles.length} custom files`);
          config._tempBackupDir = tempBackupDir;
        }

        // Back up modified files
        if (modifiedFiles.length > 0) {
          const tempModifiedBackupDir = path.join(projectDir, '_bmad-modified-backup-temp');
          await fs.ensureDir(tempModifiedBackupDir);

          spinner.start(`Backing up ${modifiedFiles.length} modified files...`);
          for (const modifiedFile of modifiedFiles) {
            const relativePath = path.relative(bmadDir, modifiedFile.path);
            const tempBackupPath = path.join(tempModifiedBackupDir, relativePath);
            await fs.ensureDir(path.dirname(tempBackupPath));
            await fs.copy(modifiedFile.path, tempBackupPath, { overwrite: true });
          }
          spinner.succeed(`Backed up ${modifiedFiles.length} modified files`);
          config._tempModifiedBackupDir = tempModifiedBackupDir;
        }
      }

      // Now collect tool configurations after we know if it's a reinstall
      // Skip for quick update since we already have the IDE list
      spinner.stop();
      let toolSelection;
      if (config._quickUpdate) {
        // Quick update already has IDEs configured, use saved configurations
        const preConfiguredIdes = {};
        const savedIdeConfigs = config._savedIdeConfigs || {};

        for (const ide of config.ides || []) {
          // Use saved config if available, otherwise mark as already configured (legacy)
          if (savedIdeConfigs[ide]) {
            preConfiguredIdes[ide] = savedIdeConfigs[ide];
          } else {
            preConfiguredIdes[ide] = { _alreadyConfigured: true };
          }
        }
        toolSelection = {
          ides: config.ides || [],
          skipIde: !config.ides || config.ides.length === 0,
          configurations: preConfiguredIdes,
        };
      } else {
        // Pass pre-selected IDEs from early prompt (if available)
        // This allows IDE selection to happen before file copying, improving UX
        const preSelectedIdes = config.ides && config.ides.length > 0 ? config.ides : null;
        toolSelection = await this.collectToolConfigurations(
          path.resolve(config.directory),
          config.modules,
          config._isFullReinstall || false,
          config._previouslyConfiguredIdes || [],
          preSelectedIdes,
        );
      }

      // Merge tool selection into config (for both quick update and regular flow)
      config.ides = toolSelection.ides;
      config.skipIde = toolSelection.skipIde;
      const ideConfigurations = toolSelection.configurations;

      // Check if spinner is already running (e.g., from folder name change scenario)
      if (spinner.isSpinning) {
        spinner.text = 'Continuing installation...';
      } else {
        spinner.start('Continuing installation...');
      }

      // Create bmad directory structure
      spinner.text = 'Creating directory structure...';
      await this.createDirectoryStructure(bmadDir);

      // Get project root
      const projectRoot = getProjectRoot();

      // Step 1: Install core module first (if requested)
      if (config.installCore) {
        spinner.start('Installing BMAD core...');
        await this.installCoreWithDependencies(bmadDir, { core: {} });
        spinner.succeed('Core installed');

        // Generate core config file
        await this.generateModuleConfigs(bmadDir, { core: config.coreConfig || {} });
      }

      // Custom content is already handled in UI before module selection
      let finalCustomContent = config.customContent;

      // Step 3: Prepare modules list including cached custom modules
      let allModules = [...(config.modules || [])];

      // During quick update, we might have custom module sources from the manifest
      if (config._customModuleSources) {
        // Add custom modules from stored sources
        for (const [moduleId, customInfo] of config._customModuleSources) {
          if (!allModules.includes(moduleId) && (await fs.pathExists(customInfo.sourcePath))) {
            allModules.push(moduleId);
          }
        }
      }

      // Add cached custom modules
      if (finalCustomContent && finalCustomContent.cachedModules) {
        for (const cachedModule of finalCustomContent.cachedModules) {
          if (!allModules.includes(cachedModule.id)) {
            allModules.push(cachedModule.id);
          }
        }
      }

      // Regular custom content from user input (non-cached)
      if (finalCustomContent && finalCustomContent.selected && finalCustomContent.selectedFiles) {
        // Add custom modules to the installation list
        const customHandler = new CustomHandler();
        for (const customFile of finalCustomContent.selectedFiles) {
          const customInfo = await customHandler.getCustomInfo(customFile, projectDir);
          if (customInfo && customInfo.id) {
            allModules.push(customInfo.id);
          }
        }
      }

      // Don't include core again if already installed
      if (config.installCore) {
        allModules = allModules.filter((m) => m !== 'core');
      }

      const modulesToInstall = allModules;

      // For dependency resolution, we need to pass the project root
      // Create a temporary module manager that knows about custom content locations
      const tempModuleManager = new ModuleManager({
        scanProjectForModules: true,
        bmadDir: bmadDir, // Pass bmadDir so we can check cache
      });

      // Make sure custom modules are discoverable
      if (config.customContent && config.customContent.selected && config.customContent.selectedFiles) {
        // The dependency resolver needs to know about these modules
        // We'll handle custom modules separately in the installation loop
      }

      const resolution = await this.dependencyResolver.resolve(projectRoot, allModules, {
        verbose: config.verbose,
        moduleManager: tempModuleManager,
      });

      if (config.verbose) {
        spinner.succeed('Dependencies resolved');
      } else {
        spinner.succeed('Dependencies resolved');
      }

      // Core is already installed above, skip if included in resolution

      // Install modules with their dependencies
      if (allModules && allModules.length > 0) {
        const installedModuleNames = new Set();

        for (const moduleName of allModules) {
          // Skip if already installed
          if (installedModuleNames.has(moduleName)) {
            continue;
          }
          installedModuleNames.add(moduleName);

          spinner.start(`Installing module: ${moduleName}...`);

          // Check if this is a custom module
          let isCustomModule = false;
          let customInfo = null;
          let useCache = false;

          // First check if we have a cached version
          if (finalCustomContent && finalCustomContent.cachedModules) {
            const cachedModule = finalCustomContent.cachedModules.find((m) => m.id === moduleName);
            if (cachedModule) {
              isCustomModule = true;
              customInfo = {
                id: moduleName,
                path: cachedModule.cachePath,
                config: {},
              };
              useCache = true;
            }
          }

          // Then check if we have custom module sources from the manifest (for quick update)
          if (!isCustomModule && config._customModuleSources && config._customModuleSources.has(moduleName)) {
            customInfo = config._customModuleSources.get(moduleName);
            isCustomModule = true;

            // Check if this is a cached module (source path starts with _cfg)
            if (customInfo.sourcePath && (customInfo.sourcePath.startsWith('_cfg') || customInfo.sourcePath.includes('_cfg/custom'))) {
              useCache = true;
              // Make sure we have the right path structure
              if (!customInfo.path) {
                customInfo.path = customInfo.sourcePath;
              }
            }
          }

          // Finally check regular custom content
          if (!isCustomModule && finalCustomContent && finalCustomContent.selected && finalCustomContent.selectedFiles) {
            const customHandler = new CustomHandler();
            for (const customFile of finalCustomContent.selectedFiles) {
              const info = await customHandler.getCustomInfo(customFile, projectDir);
              if (info && info.id === moduleName) {
                isCustomModule = true;
                customInfo = info;
                break;
              }
            }
          }

          if (isCustomModule && customInfo) {
            // Install custom module using CustomHandler but as a proper module
            const customHandler = new CustomHandler();

            // Install to module directory instead of custom directory
            const moduleTargetPath = path.join(bmadDir, moduleName);
            await fs.ensureDir(moduleTargetPath);

            // Get collected config for this custom module (from module.yaml prompts)
            const collectedModuleConfig = moduleConfigs[moduleName] || {};

            const result = await customHandler.install(
              customInfo.path,
              path.join(bmadDir, 'temp-custom'),
              { ...config.coreConfig, ...customInfo.config, ...collectedModuleConfig, _bmadDir: bmadDir },
              (filePath) => {
                // Track installed files with correct path
                const relativePath = path.relative(path.join(bmadDir, 'temp-custom'), filePath);
                const finalPath = path.join(moduleTargetPath, relativePath);
                this.installedFiles.push(finalPath);
              },
            );

            // Move from temp-custom to actual module directory
            const tempCustomPath = path.join(bmadDir, 'temp-custom');
            if (await fs.pathExists(tempCustomPath)) {
              const customDir = path.join(tempCustomPath, 'custom');
              if (await fs.pathExists(customDir)) {
                // Move contents to module directory
                const items = await fs.readdir(customDir);
                const movedItems = [];
                try {
                  for (const item of items) {
                    const srcPath = path.join(customDir, item);
                    const destPath = path.join(moduleTargetPath, item);

                    // If destination exists, remove it first (or we could merge)
                    if (await fs.pathExists(destPath)) {
                      await fs.remove(destPath);
                    }

                    await fs.move(srcPath, destPath);
                    movedItems.push({ src: srcPath, dest: destPath });
                  }
                } catch (moveError) {
                  // Rollback: restore any successfully moved items
                  for (const moved of movedItems) {
                    try {
                      await fs.move(moved.dest, moved.src);
                    } catch {
                      // Best-effort rollback - log if it fails
                      console.error(`Failed to rollback ${moved.dest} during cleanup`);
                    }
                  }
                  throw new Error(`Failed to move custom module files: ${moveError.message}`);
                }
              }
              try {
                await fs.remove(tempCustomPath);
              } catch (cleanupError) {
                // Non-fatal: temp directory cleanup failed but files were moved successfully
                console.warn(`Warning: Could not clean up temp directory: ${cleanupError.message}`);
              }
            }

            // Create module config (include collected config from module.yaml prompts)
            await this.generateModuleConfigs(bmadDir, {
              [moduleName]: { ...config.coreConfig, ...customInfo.config, ...collectedModuleConfig },
            });

            // Store custom module info for later manifest update
            if (!config._customModulesToTrack) {
              config._customModulesToTrack = [];
            }

            // For cached modules, use appropriate path handling
            let sourcePath;
            if (useCache) {
              // Check if we have cached modules info (from initial install)
              if (finalCustomContent && finalCustomContent.cachedModules) {
                sourcePath = finalCustomContent.cachedModules.find((m) => m.id === moduleName)?.relativePath;
              } else {
                // During update, the sourcePath is already cache-relative if it starts with _cfg
                sourcePath =
                  customInfo.sourcePath && customInfo.sourcePath.startsWith('_cfg')
                    ? customInfo.sourcePath
                    : path.relative(bmadDir, customInfo.path || customInfo.sourcePath);
              }
            } else {
              sourcePath = path.resolve(customInfo.path || customInfo.sourcePath);
            }

            config._customModulesToTrack.push({
              id: customInfo.id,
              name: customInfo.name,
              sourcePath: sourcePath,
              installDate: new Date().toISOString(),
            });
          } else {
            // Regular module installation
            // Special case for core module
            if (moduleName === 'core') {
              await this.installCoreWithDependencies(bmadDir, resolution.byModule[moduleName]);
            } else {
              await this.installModuleWithDependencies(moduleName, bmadDir, resolution.byModule[moduleName]);
            }
          }

          spinner.succeed(`Module installed: ${moduleName}`);
        }

        // Install partial modules (only dependencies)
        for (const [module, files] of Object.entries(resolution.byModule)) {
          if (!allModules.includes(module) && module !== 'core') {
            const totalFiles =
              files.agents.length +
              files.tasks.length +
              files.tools.length +
              files.templates.length +
              files.data.length +
              files.other.length;
            if (totalFiles > 0) {
              spinner.start(`Installing ${module} dependencies...`);
              await this.installPartialModule(module, bmadDir, files);
              spinner.succeed(`${module} dependencies installed`);
            }
          }
        }
      }

      // Install custom content if provided AND selected
      // Process custom content that wasn't installed as modules
      // This is now handled in the module installation loop above
      // This section is kept for backward compatibility with any custom content
      // that doesn't have a module structure
      const remainingCustomContent = [];
      if (
        config.customContent &&
        config.customContent.hasCustomContent &&
        config.customContent.customPath &&
        config.customContent.selected &&
        config.customContent.selectedFiles
      ) {
        // Filter out custom modules that were already installed
        const customHandler = new CustomHandler();
        for (const customFile of config.customContent.selectedFiles) {
          const customInfo = await customHandler.getCustomInfo(customFile, projectDir);

          // Skip if this was installed as a module
          if (!customInfo || !customInfo.id || !allModules.includes(customInfo.id)) {
            remainingCustomContent.push(customFile);
          }
        }
      }

      if (remainingCustomContent.length > 0) {
        spinner.start('Installing remaining custom content...');
        const customHandler = new CustomHandler();

        // Use the remaining files
        const customFiles = remainingCustomContent;

        if (customFiles.length > 0) {
          console.log(chalk.cyan(`\n  Found ${customFiles.length} custom content file(s):`));
          for (const customFile of customFiles) {
            const customInfo = await customHandler.getCustomInfo(customFile, projectDir);
            if (customInfo) {
              console.log(chalk.dim(`    • ${customInfo.name} (${customInfo.relativePath})`));

              // Install the custom content
              const result = await customHandler.install(
                customInfo.path,
                bmadDir,
                { ...config.coreConfig, ...customInfo.config },
                (filePath) => {
                  // Track installed files
                  this.installedFiles.push(filePath);
                },
              );

              if (result.errors.length > 0) {
                console.log(chalk.yellow(`    ⚠️  ${result.errors.length} error(s) occurred`));
                for (const error of result.errors) {
                  console.log(chalk.dim(`      - ${error}`));
                }
              } else {
                console.log(chalk.green(`    ✓ Installed ${result.agentsInstalled} agents, ${result.workflowsInstalled} workflows`));
              }
            }
          }
        }
        spinner.succeed('Custom content installed');
      }

      // Generate clean config.yaml files for each installed module
      spinner.start('Generating module configurations...');
      await this.generateModuleConfigs(bmadDir, moduleConfigs);
      spinner.succeed('Module configurations generated');

      // Create agent configuration files
      // Note: Legacy createAgentConfigs removed - using YAML customize system instead
      // Customize templates are now created in processAgentFiles when building YAML agents

      // Pre-register manifest files that will be created (except files-manifest.csv to avoid recursion)
      const cfgDir = path.join(bmadDir, '_cfg');
      this.installedFiles.push(
        path.join(cfgDir, 'manifest.yaml'),
        path.join(cfgDir, 'workflow-manifest.csv'),
        path.join(cfgDir, 'agent-manifest.csv'),
        path.join(cfgDir, 'task-manifest.csv'),
      );

      // Generate CSV manifests for workflows, agents, tasks AND ALL FILES with hashes BEFORE IDE setup
      spinner.start('Generating workflow and agent manifests...');
      const manifestGen = new ManifestGenerator();

      // For quick update, we need ALL installed modules in the manifest
      // Not just the ones being updated
      const allModulesForManifest = config._quickUpdate
        ? config._existingModules || allModules || []
        : config._preserveModules
          ? [...allModules, ...config._preserveModules]
          : allModules || [];

      // For regular installs (including when called from quick update), use what we have
      let modulesForCsvPreserve;
      if (config._quickUpdate) {
        // Quick update - use existing modules or fall back to modules being updated
        modulesForCsvPreserve = config._existingModules || allModules || [];
      } else {
        // Regular install - use the modules we're installing plus any preserved ones
        modulesForCsvPreserve = config._preserveModules ? [...allModules, ...config._preserveModules] : allModules;
      }

      const manifestStats = await manifestGen.generateManifests(bmadDir, allModulesForManifest, this.installedFiles, {
        ides: config.ides || [],
        preservedModules: modulesForCsvPreserve, // Scan these from installed bmad/ dir
      });

      // Add custom modules to manifest (now that it exists)
      if (config._customModulesToTrack && config._customModulesToTrack.length > 0) {
        spinner.text = 'Storing custom module sources...';
        for (const customModule of config._customModulesToTrack) {
          await this.manifest.addCustomModule(bmadDir, customModule);
        }
      }

      spinner.succeed(
        `Manifests generated: ${manifestStats.workflows} workflows, ${manifestStats.agents} agents, ${manifestStats.tasks} tasks, ${manifestStats.tools} tools, ${manifestStats.files} files`,
      );

      // Configure IDEs and copy documentation
      if (!config.skipIde && config.ides && config.ides.length > 0) {
        // Filter out any undefined/null values from the IDE list
        const validIdes = config.ides.filter((ide) => ide && typeof ide === 'string');

        if (validIdes.length === 0) {
          console.log(chalk.yellow('⚠️  No valid IDEs selected. Skipping IDE configuration.'));
        } else {
          // Check if any IDE might need prompting (no pre-collected config)
          const needsPrompting = validIdes.some((ide) => !ideConfigurations[ide]);

          if (!needsPrompting) {
            spinner.start('Configuring IDEs...');
          }

          // Temporarily suppress console output if not verbose
          const originalLog = console.log;
          if (!config.verbose) {
            console.log = () => {};
          }

          for (const ide of validIdes) {
            // Only show spinner if we have pre-collected config (no prompts expected)
            if (ideConfigurations[ide] && !needsPrompting) {
              spinner.text = `Configuring ${ide}...`;
            } else if (!ideConfigurations[ide]) {
              // Stop spinner before prompting
              if (spinner.isSpinning) {
                spinner.stop();
              }
              console.log(chalk.cyan(`\nConfiguring ${ide}...`));
            }

            // Pass pre-collected configuration to avoid re-prompting
            await this.ideManager.setup(ide, projectDir, bmadDir, {
              selectedModules: config.modules || [],
              preCollectedConfig: ideConfigurations[ide] || null,
              verbose: config.verbose,
            });

            // Save IDE configuration for future updates
            if (ideConfigurations[ide] && !ideConfigurations[ide]._alreadyConfigured) {
              await this.ideConfigManager.saveIdeConfig(bmadDir, ide, ideConfigurations[ide]);
            }

            // Restart spinner if we stopped it
            if (!ideConfigurations[ide] && !spinner.isSpinning) {
              spinner.start('Configuring IDEs...');
            }
          }

          // Restore console.log
          console.log = originalLog;

          if (spinner.isSpinning) {
            spinner.succeed(`Configured ${validIdes.length} IDE${validIdes.length > 1 ? 's' : ''}`);
          } else {
            console.log(chalk.green(`✓ Configured ${validIdes.length} IDE${validIdes.length > 1 ? 's' : ''}`));
          }
        }

        // Copy IDE-specific documentation (only for valid IDEs)
        const validIdesForDocs = (config.ides || []).filter((ide) => ide && typeof ide === 'string');
        if (validIdesForDocs.length > 0) {
          spinner.start('Copying IDE documentation...');
          await this.copyIdeDocumentation(validIdesForDocs, bmadDir);
          spinner.succeed('IDE documentation copied');
        }
      }

      // Run module-specific installers after IDE setup
      spinner.start('Running module-specific installers...');

      // Run core module installer if core was installed
      if (config.installCore || resolution.byModule.core) {
        spinner.text = 'Running core module installer...';

        await this.moduleManager.runModuleInstaller('core', bmadDir, {
          installedIDEs: config.ides || [],
          moduleConfig: moduleConfigs.core || {},
          coreConfig: moduleConfigs.core || {},
          logger: {
            log: (msg) => console.log(msg),
            error: (msg) => console.error(msg),
            warn: (msg) => console.warn(msg),
          },
        });
      }

      // Run installers for user-selected modules
      if (config.modules && config.modules.length > 0) {
        for (const moduleName of config.modules) {
          spinner.text = `Running ${moduleName} module installer...`;

          // Pass installed IDEs and module config to module installer
          await this.moduleManager.runModuleInstaller(moduleName, bmadDir, {
            installedIDEs: config.ides || [],
            moduleConfig: moduleConfigs[moduleName] || {},
            coreConfig: moduleConfigs.core || {},
            logger: {
              log: (msg) => console.log(msg),
              error: (msg) => console.error(msg),
              warn: (msg) => console.warn(msg),
            },
          });
        }
      }

      spinner.succeed('Module-specific installers completed');

      // Note: Manifest files are already created by ManifestGenerator above
      // No need to create legacy manifest.csv anymore

      // If this was an update, restore custom files
      let customFiles = [];
      let modifiedFiles = [];
      if (config._isUpdate) {
        if (config._customFiles && config._customFiles.length > 0) {
          spinner.start(`Restoring ${config._customFiles.length} custom files...`);

          for (const originalPath of config._customFiles) {
            const relativePath = path.relative(bmadDir, originalPath);
            const backupPath = path.join(config._tempBackupDir, relativePath);

            if (await fs.pathExists(backupPath)) {
              await fs.ensureDir(path.dirname(originalPath));
              await fs.copy(backupPath, originalPath, { overwrite: true });
            }
          }

          // Clean up temp backup
          if (config._tempBackupDir && (await fs.pathExists(config._tempBackupDir))) {
            await fs.remove(config._tempBackupDir);
          }

          spinner.succeed(`Restored ${config._customFiles.length} custom files`);
          customFiles = config._customFiles;
        }

        if (config._modifiedFiles && config._modifiedFiles.length > 0) {
          modifiedFiles = config._modifiedFiles;

          // Restore modified files as .bak files
          if (config._tempModifiedBackupDir && (await fs.pathExists(config._tempModifiedBackupDir))) {
            spinner.start(`Restoring ${modifiedFiles.length} modified files as .bak...`);

            for (const modifiedFile of modifiedFiles) {
              const relativePath = path.relative(bmadDir, modifiedFile.path);
              const tempBackupPath = path.join(config._tempModifiedBackupDir, relativePath);
              const bakPath = modifiedFile.path + '.bak';

              if (await fs.pathExists(tempBackupPath)) {
                await fs.ensureDir(path.dirname(bakPath));
                await fs.copy(tempBackupPath, bakPath, { overwrite: true });
              }
            }

            // Clean up temp backup
            await fs.remove(config._tempModifiedBackupDir);

            spinner.succeed(`Restored ${modifiedFiles.length} modified files as .bak`);
          }
        }
      }

      spinner.stop();

      // Report custom and modified files if any were found
      if (customFiles.length > 0) {
        console.log(chalk.cyan(`\n📁 Custom files preserved: ${customFiles.length}`));
        console.log(chalk.dim('The following custom files were found and restored:\n'));
        for (const file of customFiles) {
          console.log(chalk.dim(`  - ${path.relative(bmadDir, file)}`));
        }
        console.log('');
      }

      if (modifiedFiles.length > 0) {
        console.log(chalk.yellow(`\n⚠️  Modified files detected: ${modifiedFiles.length}`));
        console.log(chalk.dim('The following files were modified and backed up with .bak extension:\n'));
        for (const file of modifiedFiles) {
          console.log(chalk.dim(`  - ${file.relativePath} → ${file.relativePath}.bak`));
        }
        console.log(chalk.dim('\nThese files have been updated with the new version.'));
        console.log(chalk.dim('Review the .bak files to see your changes and merge if needed.\n'));
      }

      // Display completion message
      const { UI } = require('../../../lib/ui');
      const ui = new UI();
      ui.showInstallSummary({
        path: bmadDir,
        modules: config.modules,
        ides: config.ides,
        customFiles: customFiles.length > 0 ? customFiles : undefined,
        ttsInjectedFiles: this.enableAgentVibes && this.ttsInjectedFiles.length > 0 ? this.ttsInjectedFiles : undefined,
        agentVibesEnabled: this.enableAgentVibes || false,
      });

      return {
        success: true,
        path: bmadDir,
        modules: config.modules,
        ides: config.ides,
        needsAgentVibes: this.enableAgentVibes && !config.agentVibesInstalled,
        projectDir: projectDir,
      };
    } catch (error) {
      spinner.fail('Installation failed');
      throw error;
    }
  }

  /**
   * Update existing installation
   */
  async update(config) {
    const spinner = ora('Checking installation...').start();

    try {
      const projectDir = path.resolve(config.directory);
      const bmadDir = await this.findBmadDir(projectDir);
      const existingInstall = await this.detector.detect(bmadDir);

      if (!existingInstall.installed) {
        spinner.fail('No BMAD installation found');
        throw new Error(`No BMAD installation found at ${bmadDir}`);
      }

      spinner.text = 'Analyzing update requirements...';

      // Compare versions and determine what needs updating
      const currentVersion = existingInstall.version;
      const newVersion = require(path.join(getProjectRoot(), 'package.json')).version;

      // Check for custom modules with missing sources before update
      const customModuleSources = new Map();
      if (existingInstall.customModules) {
        for (const customModule of existingInstall.customModules) {
          customModuleSources.set(customModule.id, customModule);
        }
      }

      if (customModuleSources.size > 0) {
        spinner.stop();
        console.log(chalk.yellow('\nChecking custom module sources before update...'));

        const projectRoot = getProjectRoot();
        await this.handleMissingCustomSources(
          customModuleSources,
          bmadDir,
          projectRoot,
          'update',
          existingInstall.modules.map((m) => m.id),
        );

        spinner.start('Preparing update...');
      }

      if (config.dryRun) {
        spinner.stop();
        console.log(chalk.cyan('\n🔍 Update Preview (Dry Run)\n'));
        console.log(chalk.bold('Current version:'), currentVersion);
        console.log(chalk.bold('New version:'), newVersion);
        console.log(chalk.bold('Core:'), existingInstall.hasCore ? 'Will be updated' : 'Not installed');

        if (existingInstall.modules.length > 0) {
          console.log(chalk.bold('\nModules to update:'));
          for (const mod of existingInstall.modules) {
            console.log(`  - ${mod.id}`);
          }
        }
        return;
      }

      // Perform actual update
      if (existingInstall.hasCore) {
        spinner.text = 'Updating core...';
        await this.updateCore(bmadDir, config.force);
      }

      for (const module of existingInstall.modules) {
        spinner.text = `Updating module: ${module.id}...`;
        await this.moduleManager.update(module.id, bmadDir, config.force);
      }

      // Update manifest
      spinner.text = 'Updating manifest...';
      await this.manifest.update(bmadDir, {
        version: newVersion,
        updateDate: new Date().toISOString(),
      });

      spinner.succeed('Update complete');
      return { success: true };
    } catch (error) {
      spinner.fail('Update failed');
      throw error;
    }
  }

  /**
   * Get installation status
   */
  async getStatus(directory) {
    const projectDir = path.resolve(directory);
    const bmadDir = await this.findBmadDir(projectDir);
    return await this.detector.detect(bmadDir);
  }

  /**
   * Get available modules
   */
  async getAvailableModules() {
    return await this.moduleManager.listAvailable();
  }

  /**
   * Uninstall BMAD
   */
  async uninstall(directory) {
    const projectDir = path.resolve(directory);
    const bmadDir = await this.findBmadDir(projectDir);

    if (await fs.pathExists(bmadDir)) {
      await fs.remove(bmadDir);
    }

    // Clean up IDE configurations
    await this.ideManager.cleanup(projectDir);

    return { success: true };
  }

  /**
   * Private: Create directory structure
   */
  async createDirectoryStructure(bmadDir) {
    await fs.ensureDir(bmadDir);
    await fs.ensureDir(path.join(bmadDir, '_cfg'));
    await fs.ensureDir(path.join(bmadDir, '_cfg', 'agents'));
    await fs.ensureDir(path.join(bmadDir, '_cfg', 'custom'));
  }

  /**
   * Generate clean config.yaml files for each installed module
   * @param {string} bmadDir - BMAD installation directory
   * @param {Object} moduleConfigs - Collected configuration values
   */
  async generateModuleConfigs(bmadDir, moduleConfigs) {
    const yaml = require('yaml');

    // Extract core config values to share with other modules
    const coreConfig = moduleConfigs.core || {};

    // Get all installed module directories
    const entries = await fs.readdir(bmadDir, { withFileTypes: true });
    const installedModules = entries
      .filter((entry) => entry.isDirectory() && entry.name !== '_cfg' && entry.name !== 'docs')
      .map((entry) => entry.name);

    // Generate config.yaml for each installed module
    for (const moduleName of installedModules) {
      const modulePath = path.join(bmadDir, moduleName);

      // Get module-specific config or use empty object if none
      const config = moduleConfigs[moduleName] || {};

      if (await fs.pathExists(modulePath)) {
        const configPath = path.join(modulePath, 'config.yaml');

        // Create header
        const packageJson = require(path.join(getProjectRoot(), 'package.json'));
        const header = `# ${moduleName.toUpperCase()} Module Configuration
# Generated by BMAD installer
# Version: ${packageJson.version}
# Date: ${new Date().toISOString()}

`;

        // For non-core modules, add core config values directly
        let finalConfig = { ...config };
        let coreSection = '';

        if (moduleName !== 'core' && coreConfig && Object.keys(coreConfig).length > 0) {
          // Add core values directly to the module config
          // These will be available for reference in the module
          finalConfig = {
            ...config,
            ...coreConfig, // Spread core config values directly into the module config
          };

          // Create a comment section to identify core values
          coreSection = '\n# Core Configuration Values\n';
        }

        // Convert config to YAML
        let yamlContent = yaml.stringify(finalConfig, {
          indent: 2,
          lineWidth: 0,
          minContentWidth: 0,
        });

        // If we have core values, reorganize the YAML to group them with their comment
        if (coreSection && moduleName !== 'core') {
          // Split the YAML into lines
          const lines = yamlContent.split('\n');
          const moduleConfigLines = [];
          const coreConfigLines = [];

          // Separate module-specific and core config lines
          for (const line of lines) {
            const key = line.split(':')[0].trim();
            if (Object.prototype.hasOwnProperty.call(coreConfig, key)) {
              coreConfigLines.push(line);
            } else {
              moduleConfigLines.push(line);
            }
          }

          // Rebuild YAML with module config first, then core config with comment
          yamlContent = moduleConfigLines.join('\n');
          if (coreConfigLines.length > 0) {
            yamlContent += coreSection + coreConfigLines.join('\n');
          }
        }

        // Write the clean config file with POSIX-compliant final newline
        const content = header + yamlContent;
        await fs.writeFile(configPath, content.endsWith('\n') ? content : content + '\n', 'utf8');

        // Track the config file in installedFiles
        this.installedFiles.push(configPath);
      }
    }
  }

  /**
   * Install core with resolved dependencies
   * @param {string} bmadDir - BMAD installation directory
   * @param {Object} coreFiles - Core files to install
   */
  async installCoreWithDependencies(bmadDir, coreFiles) {
    const sourcePath = getModulePath('core');
    const targetPath = path.join(bmadDir, 'core');

    // Install full core
    await this.installCore(bmadDir);

    // If there are specific dependency files, ensure they're included
    if (coreFiles) {
      // Already handled by installCore for core module
    }
  }

  /**
   * Install module with resolved dependencies
   * @param {string} moduleName - Module name
   * @param {string} bmadDir - BMAD installation directory
   * @param {Object} moduleFiles - Module files to install
   */
  async installModuleWithDependencies(moduleName, bmadDir, moduleFiles) {
    // Get module configuration for conditional installation
    const moduleConfig = this.configCollector.collectedConfig[moduleName] || {};

    // Use existing module manager for full installation with file tracking
    // Note: Module-specific installers are called separately after IDE setup
    await this.moduleManager.install(
      moduleName,
      bmadDir,
      (filePath) => {
        this.installedFiles.push(filePath);
      },
      {
        skipModuleInstaller: true, // We'll run it later after IDE setup
        moduleConfig: moduleConfig, // Pass module config for conditional filtering
      },
    );

    // Process agent files to build YAML agents and create customize templates
    const modulePath = path.join(bmadDir, moduleName);
    await this.processAgentFiles(modulePath, moduleName);

    // Dependencies are already included in full module install
  }

  /**
   * Install partial module (only dependencies needed by other modules)
   */
  async installPartialModule(moduleName, bmadDir, files) {
    const sourceBase = getModulePath(moduleName);
    const targetBase = path.join(bmadDir, moduleName);

    // Create module directory
    await fs.ensureDir(targetBase);

    // Copy only the required dependency files
    if (files.agents && files.agents.length > 0) {
      const agentsDir = path.join(targetBase, 'agents');
      await fs.ensureDir(agentsDir);

      for (const agentPath of files.agents) {
        const fileName = path.basename(agentPath);
        const sourcePath = path.join(sourceBase, 'agents', fileName);
        const targetPath = path.join(agentsDir, fileName);

        if (await fs.pathExists(sourcePath)) {
          await this.copyFileWithPlaceholderReplacement(sourcePath, targetPath, this.bmadFolderName || 'bmad');
          this.installedFiles.push(targetPath);
        }
      }
    }

    if (files.tasks && files.tasks.length > 0) {
      const tasksDir = path.join(targetBase, 'tasks');
      await fs.ensureDir(tasksDir);

      for (const taskPath of files.tasks) {
        const fileName = path.basename(taskPath);
        const sourcePath = path.join(sourceBase, 'tasks', fileName);
        const targetPath = path.join(tasksDir, fileName);

        if (await fs.pathExists(sourcePath)) {
          await this.copyFileWithPlaceholderReplacement(sourcePath, targetPath, this.bmadFolderName || 'bmad');
          this.installedFiles.push(targetPath);
        }
      }
    }

    if (files.tools && files.tools.length > 0) {
      const toolsDir = path.join(targetBase, 'tools');
      await fs.ensureDir(toolsDir);

      for (const toolPath of files.tools) {
        const fileName = path.basename(toolPath);
        const sourcePath = path.join(sourceBase, 'tools', fileName);
        const targetPath = path.join(toolsDir, fileName);

        if (await fs.pathExists(sourcePath)) {
          await this.copyFileWithPlaceholderReplacement(sourcePath, targetPath, this.bmadFolderName || 'bmad');
          this.installedFiles.push(targetPath);
        }
      }
    }

    if (files.templates && files.templates.length > 0) {
      const templatesDir = path.join(targetBase, 'templates');
      await fs.ensureDir(templatesDir);

      for (const templatePath of files.templates) {
        const fileName = path.basename(templatePath);
        const sourcePath = path.join(sourceBase, 'templates', fileName);
        const targetPath = path.join(templatesDir, fileName);

        if (await fs.pathExists(sourcePath)) {
          await this.copyFileWithPlaceholderReplacement(sourcePath, targetPath, this.bmadFolderName || 'bmad');
          this.installedFiles.push(targetPath);
        }
      }
    }

    if (files.data && files.data.length > 0) {
      for (const dataPath of files.data) {
        // Preserve directory structure for data files
        const relative = path.relative(sourceBase, dataPath);
        const targetPath = path.join(targetBase, relative);

        await fs.ensureDir(path.dirname(targetPath));

        if (await fs.pathExists(dataPath)) {
          await this.copyFileWithPlaceholderReplacement(dataPath, targetPath, this.bmadFolderName || 'bmad');
          this.installedFiles.push(targetPath);
        }
      }
    }

    // Create a marker file to indicate this is a partial installation
    const markerPath = path.join(targetBase, '.partial');
    await fs.writeFile(
      markerPath,
      `This module contains only dependencies required by other modules.\nInstalled: ${new Date().toISOString()}\n`,
    );
  }

  /**
   * Private: Install core
   * @param {string} bmadDir - BMAD installation directory
   */
  async installCore(bmadDir) {
    const sourcePath = getModulePath('core');
    const targetPath = path.join(bmadDir, 'core');

    // Copy core files (skip .agent.yaml files like modules do)
    await this.copyCoreFiles(sourcePath, targetPath);

    // Compile agents using the same compiler as modules
    const { ModuleManager } = require('../modules/manager');
    const moduleManager = new ModuleManager();
    await moduleManager.compileModuleAgents(sourcePath, targetPath, 'core', bmadDir);

    // Process agent files to inject activation block
    await this.processAgentFiles(targetPath, 'core');
  }

  /**
   * Copy core files (similar to copyModuleWithFiltering but for core)
   * @param {string} sourcePath - Source path
   * @param {string} targetPath - Target path
   */
  async copyCoreFiles(sourcePath, targetPath) {
    // Get all files in source
    const files = await this.getFileList(sourcePath);

    for (const file of files) {
      // Skip sub-modules directory - these are IDE-specific and handled separately
      if (file.startsWith('sub-modules/')) {
        continue;
      }

      // Skip sidecar directories - they are handled separately during agent compilation
      if (
        path
          .dirname(file)
          .split('/')
          .some((dir) => dir.toLowerCase().includes('sidecar'))
      ) {
        continue;
      }

      // Skip _module-installer directory - it's only needed at install time
      if (file.startsWith('_module-installer/') || file === 'module.yaml') {
        continue;
      }

      // Skip config.yaml templates - we'll generate clean ones with actual values
      if (file === 'config.yaml' || file.endsWith('/config.yaml') || file === 'custom.yaml' || file.endsWith('/custom.yaml')) {
        continue;
      }

      // Skip .agent.yaml files - they will be compiled separately
      if (file.endsWith('.agent.yaml')) {
        continue;
      }

      const sourceFile = path.join(sourcePath, file);
      const targetFile = path.join(targetPath, file);

      // Check if this is an agent file
      if (file.startsWith('agents/') && file.endsWith('.md')) {
        // Read the file to check for localskip
        const content = await fs.readFile(sourceFile, 'utf8');

        // Check for localskip="true" in the agent tag
        const agentMatch = content.match(/<agent[^>]*\slocalskip="true"[^>]*>/);
        if (agentMatch) {
          console.log(chalk.dim(`  Skipping web-only agent: ${path.basename(file)}`));
          continue; // Skip this agent
        }
      }

      // Check if this is a workflow.yaml file
      if (file.endsWith('workflow.yaml')) {
        await fs.ensureDir(path.dirname(targetFile));
        await this.copyWorkflowYamlStripped(sourceFile, targetFile);
      } else {
        // Copy the file with placeholder replacement
        await this.copyFileWithPlaceholderReplacement(sourceFile, targetFile, this.bmadFolderName || 'bmad');
      }

      // Track the installed file
      this.installedFiles.push(targetFile);
    }
  }

  /**
   * Get list of all files in a directory recursively
   * @param {string} dir - Directory path
   * @param {string} baseDir - Base directory for relative paths
   * @returns {Array} List of relative file paths
   */
  async getFileList(dir, baseDir = dir) {
    const files = [];
    const entries = await fs.readdir(dir, { withFileTypes: true });

    for (const entry of entries) {
      const fullPath = path.join(dir, entry.name);

      if (entry.isDirectory()) {
        // Skip _module-installer directories
        if (entry.name === '_module-installer') {
          continue;
        }
        const subFiles = await this.getFileList(fullPath, baseDir);
        files.push(...subFiles);
      } else {
        files.push(path.relative(baseDir, fullPath));
      }
    }

    return files;
  }

  /**
   * Process agent files to build YAML agents and inject activation blocks
   * @param {string} modulePath - Path to module in bmad/ installation
   * @param {string} moduleName - Module name
   */
  async processAgentFiles(modulePath, moduleName) {
    const agentsPath = path.join(modulePath, 'agents');

    // Check if agents directory exists
    if (!(await fs.pathExists(agentsPath))) {
      return; // No agents to process
    }

    // Determine project directory (parent of bmad/ directory)
    const bmadDir = path.dirname(modulePath);
    const projectDir = path.dirname(bmadDir);
    const cfgAgentsDir = path.join(bmadDir, '_cfg', 'agents');

    // Ensure _cfg/agents directory exists
    await fs.ensureDir(cfgAgentsDir);

    // Get all agent files
    const agentFiles = await fs.readdir(agentsPath);

    for (const agentFile of agentFiles) {
      // Skip .agent.yaml files - they should already be compiled by compileModuleAgents
      if (agentFile.endsWith('.agent.yaml')) {
        continue;
      }

      // Only process .md files (already compiled from YAML)
      if (!agentFile.endsWith('.md')) {
        continue;
      }

      const agentName = agentFile.replace('.md', '');
      const mdPath = path.join(agentsPath, agentFile);
      const customizePath = path.join(cfgAgentsDir, `${moduleName}-${agentName}.customize.yaml`);

      // For .md files that are already compiled, we don't need to do much
      // Just ensure the customize template exists
      if (!(await fs.pathExists(customizePath))) {
        const genericTemplatePath = getSourcePath('utility', 'agent-components', 'agent.customize.template.yaml');
        if (await fs.pathExists(genericTemplatePath)) {
          await this.copyFileWithPlaceholderReplacement(genericTemplatePath, customizePath, this.bmadFolderName || 'bmad');
          console.log(chalk.dim(`  Created customize: ${moduleName}-${agentName}.customize.yaml`));
        }
      }

      // Read the existing .md file to check for sidecar info
      let hasSidecar = false;
      try {
        const content = await fs.readFile(mdPath, 'utf8');
        // Look for sidecar metadata in the frontmatter or content
        hasSidecar = content.includes('hasSidecar') && content.includes('true');
      } catch {
        // Continue without sidecar processing
      }

      // Copy sidecar files if agent has hasSidecar flag
      if (hasSidecar) {
        const { copyAgentSidecarFiles } = require('../../../lib/agent/installer');

        // Get agent sidecar folder from core config
        const coreConfigPath = path.join(bmadDir, 'bmb', 'config.yaml');
        let agentSidecarFolder;

        if (await fs.pathExists(coreConfigPath)) {
          const yamlLib = require('yaml');
          const coreConfigContent = await fs.readFile(coreConfigPath, 'utf8');
          const coreConfig = yamlLib.parse(coreConfigContent);
          agentSidecarFolder = coreConfig.agent_sidecar_folder || agentSidecarFolder;
        }

        // Resolve path variables
        const resolvedSidecarFolder = agentSidecarFolder
          .replaceAll('{project-root}', projectDir)
          .replaceAll('_bmad', this.bmadFolderName || 'bmad');

        // Create sidecar directory for this agent
        const agentSidecarDir = path.join(resolvedSidecarFolder, agentName);
        await fs.ensureDir(agentSidecarDir);

        // Find and copy sidecar folder from source module
        const sourceModulePath = moduleName === 'core' ? getModulePath('core') : getSourcePath(`modules/${moduleName}`);
        const sourceAgentPath = path.join(sourceModulePath, 'agents');

        // Copy sidecar files (preserve existing, add new)
        const sidecarResult = copyAgentSidecarFiles(sourceAgentPath, agentSidecarDir, null);

        if (sidecarResult.copied.length > 0) {
          console.log(chalk.dim(`  Copied ${sidecarResult.copied.length} new sidecar file(s) to: ${agentSidecarDir}`));
        }
        if (sidecarResult.preserved.length > 0) {
          console.log(chalk.dim(`  Preserved ${sidecarResult.preserved.length} existing sidecar file(s)`));
        }
      }
    }
  }

  /**
   * Build standalone agents in bmad/agents/ directory
   * @param {string} bmadDir - Path to bmad directory
   * @param {string} projectDir - Path to project directory
   */
  async buildStandaloneAgents(bmadDir, projectDir) {
    const standaloneAgentsPath = path.join(bmadDir, 'agents');
    const cfgAgentsDir = path.join(bmadDir, '_cfg', 'agents');

    // Check if standalone agents directory exists
    if (!(await fs.pathExists(standaloneAgentsPath))) {
      return;
    }

    // Get all subdirectories in agents/
    const agentDirs = await fs.readdir(standaloneAgentsPath, { withFileTypes: true });

    for (const agentDir of agentDirs) {
      if (!agentDir.isDirectory()) continue;

      const agentDirPath = path.join(standaloneAgentsPath, agentDir.name);

      // Find any .agent.yaml file in the directory
      const files = await fs.readdir(agentDirPath);
      const yamlFile = files.find((f) => f.endsWith('.agent.yaml'));

      if (!yamlFile) continue;

      const agentName = path.basename(yamlFile, '.agent.yaml');
      const sourceYamlPath = path.join(agentDirPath, yamlFile);
      const targetMdPath = path.join(agentDirPath, `${agentName}.md`);
      const customizePath = path.join(cfgAgentsDir, `${agentName}.customize.yaml`);

      // Check for customizations
      const customizeExists = await fs.pathExists(customizePath);
      let customizedFields = [];

      if (customizeExists) {
        const customizeContent = await fs.readFile(customizePath, 'utf8');
        const yaml = require('yaml');
        const customizeYaml = yaml.parse(customizeContent);

        // Detect what fields are customized (similar to rebuildAgentFiles)
        if (customizeYaml) {
          if (customizeYaml.persona) {
            for (const [key, value] of Object.entries(customizeYaml.persona)) {
              if (value !== '' && value !== null && !(Array.isArray(value) && value.length === 0)) {
                customizedFields.push(`persona.${key}`);
              }
            }
          }
          if (customizeYaml.agent?.metadata) {
            for (const [key, value] of Object.entries(customizeYaml.agent.metadata)) {
              if (value !== '' && value !== null) {
                customizedFields.push(`metadata.${key}`);
              }
            }
          }
          if (customizeYaml.critical_actions && customizeYaml.critical_actions.length > 0) {
            customizedFields.push('critical_actions');
          }
          if (customizeYaml.menu && customizeYaml.menu.length > 0) {
            customizedFields.push('menu');
          }
        }
      }

      // Build YAML to XML .md
      let xmlContent = await this.xmlHandler.buildFromYaml(sourceYamlPath, customizeExists ? customizePath : null, {
        includeMetadata: true,
      });

      // DO NOT replace {project-root} - LLMs understand this placeholder at runtime
      // const processedContent = xmlContent.replaceAll('{project-root}', projectDir);

      // Process TTS injection points (pass targetPath for tracking)
      xmlContent = this.processTTSInjectionPoints(xmlContent, targetMdPath);

      // Write the built .md file with POSIX-compliant final newline
      const content = xmlContent.endsWith('\n') ? xmlContent : xmlContent + '\n';
      await fs.writeFile(targetMdPath, content, 'utf8');

      // Display result
      if (customizedFields.length > 0) {
        console.log(chalk.dim(`  Built standalone agent: ${agentName}.md `) + chalk.yellow(`(customized: ${customizedFields.join(', ')})`));
      } else {
        console.log(chalk.dim(`  Built standalone agent: ${agentName}.md`));
      }
    }
  }

  /**
   * Rebuild agent files from installer source (for compile command)
   * @param {string} modulePath - Path to module in bmad/ installation
   * @param {string} moduleName - Module name
   */
  async rebuildAgentFiles(modulePath, moduleName) {
    // Get source agents directory from installer
    const sourceAgentsPath =
      moduleName === 'core' ? path.join(getModulePath('core'), 'agents') : path.join(getSourcePath(`modules/${moduleName}`), 'agents');

    if (!(await fs.pathExists(sourceAgentsPath))) {
      return; // No source agents to rebuild
    }

    // Determine project directory (parent of bmad/ directory)
    const bmadDir = path.dirname(modulePath);
    const projectDir = path.dirname(bmadDir);
    const cfgAgentsDir = path.join(bmadDir, '_cfg', 'agents');
    const targetAgentsPath = path.join(modulePath, 'agents');

    // Ensure target directory exists
    await fs.ensureDir(targetAgentsPath);

    // Get all YAML agent files from source
    const sourceFiles = await fs.readdir(sourceAgentsPath);

    for (const file of sourceFiles) {
      if (file.endsWith('.agent.yaml')) {
        const agentName = file.replace('.agent.yaml', '');
        const sourceYamlPath = path.join(sourceAgentsPath, file);
        const targetMdPath = path.join(targetAgentsPath, `${agentName}.md`);
        const customizePath = path.join(cfgAgentsDir, `${moduleName}-${agentName}.customize.yaml`);

        // Check for customizations
        const customizeExists = await fs.pathExists(customizePath);
        let customizedFields = [];

        if (customizeExists) {
          const customizeContent = await fs.readFile(customizePath, 'utf8');
          const yaml = require('yaml');
          const customizeYaml = yaml.parse(customizeContent);

          // Detect what fields are customized
          if (customizeYaml) {
            if (customizeYaml.persona) {
              for (const [key, value] of Object.entries(customizeYaml.persona)) {
                if (value !== '' && value !== null && !(Array.isArray(value) && value.length === 0)) {
                  customizedFields.push(`persona.${key}`);
                }
              }
            }
            if (customizeYaml.agent?.metadata) {
              for (const [key, value] of Object.entries(customizeYaml.agent.metadata)) {
                if (value !== '' && value !== null) {
                  customizedFields.push(`metadata.${key}`);
                }
              }
            }
            if (customizeYaml.critical_actions && customizeYaml.critical_actions.length > 0) {
              customizedFields.push('critical_actions');
            }
            if (customizeYaml.memories && customizeYaml.memories.length > 0) {
              customizedFields.push('memories');
            }
            if (customizeYaml.menu && customizeYaml.menu.length > 0) {
              customizedFields.push('menu');
            }
            if (customizeYaml.prompts && customizeYaml.prompts.length > 0) {
              customizedFields.push('prompts');
            }
          }
        }

        // Read the YAML content
        const yamlContent = await fs.readFile(sourceYamlPath, 'utf8');

        // Read customize content if exists
        let customizeData = {};
        if (customizeExists) {
          const customizeContent = await fs.readFile(customizePath, 'utf8');
          const yaml = require('yaml');
          customizeData = yaml.parse(customizeContent);
        }

        // Build agent answers from customize data (filter empty values)
        const answers = {};
        if (customizeData.persona) {
          Object.assign(answers, filterCustomizationData(customizeData.persona));
        }
        if (customizeData.agent?.metadata) {
          const filteredMetadata = filterCustomizationData(customizeData.agent.metadata);
          if (Object.keys(filteredMetadata).length > 0) {
            Object.assign(answers, { metadata: filteredMetadata });
          }
        }
        if (customizeData.critical_actions && customizeData.critical_actions.length > 0) {
          answers.critical_actions = customizeData.critical_actions;
        }
        if (customizeData.memories && customizeData.memories.length > 0) {
          answers.memories = customizeData.memories;
        }

        // Get core config for agent_sidecar_folder
        const coreConfigPath = path.join(bmadDir, 'bmb', 'config.yaml');
        let coreConfig = {};
        if (await fs.pathExists(coreConfigPath)) {
          const yaml = require('yaml');
          const coreConfigContent = await fs.readFile(coreConfigPath, 'utf8');
          coreConfig = yaml.parse(coreConfigContent);
        }

        // Compile using the same compiler as initial installation
        const { compileAgent } = require('../../../lib/agent/compiler');
        const { xml } = await compileAgent(yamlContent, answers, agentName, path.relative(bmadDir, targetMdPath), {
          config: coreConfig,
        });

        // Replace _bmad with actual folder name if needed
        const finalXml = xml.replaceAll('_bmad', path.basename(bmadDir));

        // Write the rebuilt .md file with POSIX-compliant final newline
        const content = finalXml.endsWith('\n') ? finalXml : finalXml + '\n';
        await fs.writeFile(targetMdPath, content, 'utf8');

        // Display result with customizations if any
        if (customizedFields.length > 0) {
          console.log(chalk.dim(`  Rebuilt agent: ${agentName}.md `) + chalk.yellow(`(customized: ${customizedFields.join(', ')})`));
        } else {
          console.log(chalk.dim(`  Rebuilt agent: ${agentName}.md`));
        }
      }
    }
  }

  /**
   * Compile/rebuild all agents and tasks for quick updates
   * @param {Object} config - Compilation configuration
   * @returns {Object} Compilation results
   */
  async compileAgents(config) {
    try {
      const projectDir = path.resolve(config.directory);
      const bmadDir = await this.findBmadDir(projectDir);

      // Check if bmad directory exists
      if (!(await fs.pathExists(bmadDir))) {
        throw new Error(`BMAD not installed at ${bmadDir}`);
      }

      // Get installed modules from manifest
      const manifestPath = path.join(bmadDir, '_cfg', 'manifest.yaml');
      let installedModules = [];
      let manifest = null;
      if (await fs.pathExists(manifestPath)) {
        const manifestContent = await fs.readFile(manifestPath, 'utf8');
        const yaml = require('yaml');
        manifest = yaml.parse(manifestContent);
        installedModules = manifest.modules || [];
      }

      // Check for custom modules with missing sources
      if (manifest && manifest.customModules && manifest.customModules.length > 0) {
        console.log(chalk.yellow('\nChecking custom module sources before compilation...'));

        const customModuleSources = new Map();
        for (const customModule of manifest.customModules) {
          customModuleSources.set(customModule.id, customModule);
        }

        const projectRoot = getProjectRoot();
        await this.handleMissingCustomSources(customModuleSources, bmadDir, projectRoot, 'compile-agents', installedModules);
      }

      let agentCount = 0;
      let taskCount = 0;

      // Process all modules in bmad directory
      const entries = await fs.readdir(bmadDir, { withFileTypes: true });

      for (const entry of entries) {
        if (entry.isDirectory() && entry.name !== '_cfg' && entry.name !== 'docs') {
          const modulePath = path.join(bmadDir, entry.name);

          // Special handling for standalone agents in bmad/agents/ directory
          if (entry.name === 'agents') {
            await this.buildStandaloneAgents(bmadDir, projectDir);

            // Count standalone agents
            const standaloneAgentsPath = path.join(bmadDir, 'agents');
            const standaloneAgentDirs = await fs.readdir(standaloneAgentsPath, { withFileTypes: true });
            for (const agentDir of standaloneAgentDirs) {
              if (agentDir.isDirectory()) {
                const agentDirPath = path.join(standaloneAgentsPath, agentDir.name);
                const agentFiles = await fs.readdir(agentDirPath);
                agentCount += agentFiles.filter((f) => f.endsWith('.md') && !f.endsWith('.agent.yaml')).length;
              }
            }
          } else {
            // Rebuild module agents from installer source
            const agentsPath = path.join(modulePath, 'agents');
            if (await fs.pathExists(agentsPath)) {
              await this.rebuildAgentFiles(modulePath, entry.name);
              const agentFiles = await fs.readdir(agentsPath);
              agentCount += agentFiles.filter((f) => f.endsWith('.md')).length;
            }

            // Count tasks (already built)
            const tasksPath = path.join(modulePath, 'tasks');
            if (await fs.pathExists(tasksPath)) {
              const taskFiles = await fs.readdir(tasksPath);
              taskCount += taskFiles.filter((f) => f.endsWith('.md')).length;
            }
          }
        }
      }

      // Update IDE configurations using the existing IDE list from manifest
      if (manifest && manifest.ides && manifest.ides.length > 0) {
        for (const ide of manifest.ides) {
          await this.ideManager.setup(ide, projectDir, bmadDir, {
            selectedModules: installedModules,
            skipModuleInstall: true, // Skip module installation, just update IDE files
            verbose: config.verbose,
            preCollectedConfig: { _alreadyConfigured: true }, // Skip all interactive prompts during compile
          });
        }
        console.log(chalk.green('✓ IDE configurations updated'));
      } else {
        console.log(chalk.yellow('⚠️  No IDEs configured. Skipping IDE update.'));
      }
      return { agentCount, taskCount };
    } catch (error) {
      throw error;
    }
  }

  /**
   * Private: Update core
   */
  async updateCore(bmadDir, force = false) {
    const sourcePath = getModulePath('core');
    const targetPath = path.join(bmadDir, 'core');

    if (force) {
      await fs.remove(targetPath);
      await this.installCore(bmadDir);
    } else {
      // Selective update - preserve user modifications
      await this.fileOps.syncDirectory(sourcePath, targetPath);
    }
  }

  /**
   * Quick update method - preserves all settings and only prompts for new config fields
   * @param {Object} config - Configuration with directory
   * @returns {Object} Update result
   */
  async quickUpdate(config) {
    const ora = require('ora');
    const spinner = ora('Starting quick update...').start();

    try {
      const projectDir = path.resolve(config.directory);
      const bmadDir = await this.findBmadDir(projectDir);

      // Check if bmad directory exists
      if (!(await fs.pathExists(bmadDir))) {
        spinner.fail('No BMAD installation found');
        throw new Error(`BMAD not installed at ${bmadDir}. Use regular install for first-time setup.`);
      }

      spinner.text = 'Detecting installed modules and configuration...';

      // Detect existing installation
      const existingInstall = await this.detector.detect(bmadDir);
      const installedModules = existingInstall.modules.map((m) => m.id);
      const configuredIdes = existingInstall.ides || [];
      const projectRoot = path.dirname(bmadDir);

      // Get custom module sources from manifest
      const customModuleSources = new Map();
      if (existingInstall.customModules) {
        for (const customModule of existingInstall.customModules) {
          // Ensure we have an absolute sourcePath
          let absoluteSourcePath = customModule.sourcePath;

          // Check if sourcePath is a cache-relative path (starts with _cfg/)
          if (absoluteSourcePath && absoluteSourcePath.startsWith('_cfg')) {
            // Convert cache-relative path to absolute path
            absoluteSourcePath = path.join(bmadDir, absoluteSourcePath);
          }
          // If no sourcePath but we have relativePath, convert it
          else if (!absoluteSourcePath && customModule.relativePath) {
            // relativePath is relative to the project root (parent of bmad dir)
            absoluteSourcePath = path.resolve(projectRoot, customModule.relativePath);
          }
          // Ensure sourcePath is absolute for anything else
          else if (absoluteSourcePath && !path.isAbsolute(absoluteSourcePath)) {
            absoluteSourcePath = path.resolve(absoluteSourcePath);
          }

          // Update the custom module object with the absolute path
          const updatedModule = {
            ...customModule,
            sourcePath: absoluteSourcePath,
          };

          customModuleSources.set(customModule.id, updatedModule);
        }
      }

      // Load saved IDE configurations
      const savedIdeConfigs = await this.ideConfigManager.loadAllIdeConfigs(bmadDir);

      // Get available modules (what we have source for)
      const availableModulesData = await this.moduleManager.listAvailable();
      const availableModules = [...availableModulesData.modules, ...availableModulesData.customModules];

      // Add custom modules from manifest if their sources exist
      for (const [moduleId, customModule] of customModuleSources) {
        // Use the absolute sourcePath
        const sourcePath = customModule.sourcePath;

        // Check if source exists at the recorded path
        if (
          sourcePath &&
          (await fs.pathExists(sourcePath)) && // Add to available modules if not already there
          !availableModules.some((m) => m.id === moduleId)
        ) {
          availableModules.push({
            id: moduleId,
            name: customModule.name || moduleId,
            path: sourcePath,
            isCustom: true,
            fromManifest: true,
          });
        }
      }

      // Check for untracked custom modules (installed but not in manifest)
      const untrackedCustomModules = [];
      for (const installedModule of installedModules) {
        // Skip standard modules and core
        const standardModuleIds = ['bmb', 'bmgd', 'bmm', 'cis', 'core'];
        if (standardModuleIds.includes(installedModule)) {
          continue;
        }

        // Check if this installed module is not tracked in customModules
        if (!customModuleSources.has(installedModule)) {
          const modulePath = path.join(bmadDir, installedModule);
          if (await fs.pathExists(modulePath)) {
            untrackedCustomModules.push({
              id: installedModule,
              name: installedModule, // We don't have the original name
              path: modulePath,
              untracked: true,
            });
          }
        }
      }

      // If we found untracked custom modules, offer to track them
      if (untrackedCustomModules.length > 0) {
        spinner.stop();
        console.log(chalk.yellow(`\n⚠️  Found ${untrackedCustomModules.length} custom module(s) not tracked in manifest:`));

        for (const untracked of untrackedCustomModules) {
          console.log(chalk.dim(`  • ${untracked.id} (installed at ${path.relative(projectRoot, untracked.path)})`));
        }

        const { trackModules } = await inquirer.prompt([
          {
            type: 'confirm',
            name: 'trackModules',
            message: chalk.cyan('Would you like to scan for their source locations?'),
            default: true,
          },
        ]);

        if (trackModules) {
          const { scanDirectory } = await inquirer.prompt([
            {
              type: 'input',
              name: 'scanDirectory',
              message: 'Enter directory to scan for custom module sources (or leave blank to skip):',
              default: projectRoot,
              validate: async (input) => {
                if (input && input.trim() !== '') {
                  const expandedPath = path.resolve(input.trim());
                  if (!(await fs.pathExists(expandedPath))) {
                    return 'Directory does not exist';
                  }
                  const stats = await fs.stat(expandedPath);
                  if (!stats.isDirectory()) {
                    return 'Path must be a directory';
                  }
                }
                return true;
              },
            },
          ]);

          if (scanDirectory && scanDirectory.trim() !== '') {
            console.log(chalk.dim('\nScanning for custom module sources...'));

            // Scan for all module.yaml files
            const allModulePaths = await this.moduleManager.findModulesInProject(scanDirectory);
            const { ModuleManager } = require('../modules/manager');
            const mm = new ModuleManager({ scanProjectForModules: true });

            for (const untracked of untrackedCustomModules) {
              let foundSource = null;

              // Try to find by module ID
              for (const modulePath of allModulePaths) {
                try {
                  const moduleInfo = await mm.getModuleInfo(modulePath);
                  if (moduleInfo && moduleInfo.id === untracked.id) {
                    foundSource = {
                      path: modulePath,
                      info: moduleInfo,
                    };
                    break;
                  }
                } catch {
                  // Continue searching
                }
              }

              if (foundSource) {
                console.log(chalk.green(`  ✓ Found source for ${untracked.id}: ${path.relative(projectRoot, foundSource.path)}`));

                // Add to manifest
                await this.manifest.addCustomModule(bmadDir, {
                  id: untracked.id,
                  name: foundSource.info.name || untracked.name,
                  sourcePath: path.resolve(foundSource.path),
                  installDate: new Date().toISOString(),
                  tracked: true,
                });

                // Add to customModuleSources for processing
                customModuleSources.set(untracked.id, {
                  id: untracked.id,
                  name: foundSource.info.name || untracked.name,
                  sourcePath: path.resolve(foundSource.path),
                });
              } else {
                console.log(chalk.yellow(`  ⚠ Could not find source for ${untracked.id}`));
              }
            }
          }
        }

        console.log(chalk.dim('\nUntracked custom modules will remain installed but cannot be updated without their source.'));
        spinner.start('Preparing update...');
      }

      // Handle missing custom module sources using shared method
      const customModuleResult = await this.handleMissingCustomSources(
        customModuleSources,
        bmadDir,
        projectRoot,
        'update',
        installedModules,
      );

      const { validCustomModules, keptModulesWithoutSources } = customModuleResult;

      const customModulesFromManifest = validCustomModules.map((m) => ({
        ...m,
        isCustom: true,
        hasUpdate: true,
      }));

      // Add untracked modules to the update list but mark them as untrackable
      for (const untracked of untrackedCustomModules) {
        if (!customModuleSources.has(untracked.id)) {
          customModulesFromManifest.push({
            ...untracked,
            isCustom: true,
            hasUpdate: false, // Can't update without source
            untracked: true,
          });
        }
      }

      const allAvailableModules = [...availableModules, ...customModulesFromManifest];
      const availableModuleIds = new Set(allAvailableModules.map((m) => m.id));

      // Core module is special - never include it in update flow
      const nonCoreInstalledModules = installedModules.filter((id) => id !== 'core');

      // Only update modules that are BOTH installed AND available (we have source for)
      const modulesToUpdate = nonCoreInstalledModules.filter((id) => availableModuleIds.has(id));
      const skippedModules = nonCoreInstalledModules.filter((id) => !availableModuleIds.has(id));

      // Add custom modules that were kept without sources to the skipped modules
      // This ensures their agents are preserved in the manifest
      for (const keptModule of keptModulesWithoutSources) {
        if (!skippedModules.includes(keptModule)) {
          skippedModules.push(keptModule);
        }
      }

      spinner.succeed(`Found ${modulesToUpdate.length} module(s) to update and ${configuredIdes.length} configured tool(s)`);

      if (skippedModules.length > 0) {
        console.log(chalk.yellow(`⚠️  Skipping ${skippedModules.length} module(s) - no source available: ${skippedModules.join(', ')}`));
      }

      // Load existing configs and collect new fields (if any)
      console.log(chalk.cyan('\n📋 Checking for new configuration options...'));
      await this.configCollector.loadExistingConfig(projectDir);

      let promptedForNewFields = false;

      // Check core config for new fields
      const corePrompted = await this.configCollector.collectModuleConfigQuick('core', projectDir, true);
      if (corePrompted) {
        promptedForNewFields = true;
      }

      // Check each module we're updating for new fields (NOT skipped modules)
      for (const moduleName of modulesToUpdate) {
        const modulePrompted = await this.configCollector.collectModuleConfigQuick(moduleName, projectDir, true);
        if (modulePrompted) {
          promptedForNewFields = true;
        }
      }

      if (!promptedForNewFields) {
        console.log(chalk.green('✓ All configuration is up to date, no new options to configure'));
      }

      // Add metadata
      this.configCollector.collectedConfig._meta = {
        version: require(path.join(getProjectRoot(), 'package.json')).version,
        installDate: new Date().toISOString(),
        lastModified: new Date().toISOString(),
      };

      // Build the config object for the installer
      const installConfig = {
        directory: projectDir,
        installCore: true,
        modules: modulesToUpdate, // Only update modules we have source for
        ides: configuredIdes,
        skipIde: configuredIdes.length === 0,
        coreConfig: this.configCollector.collectedConfig.core,
        actionType: 'install', // Use regular install flow
        _quickUpdate: true, // Flag to skip certain prompts
        _preserveModules: skippedModules, // Preserve these in manifest even though we didn't update them
        _savedIdeConfigs: savedIdeConfigs, // Pass saved IDE configs to installer
        _customModuleSources: customModuleSources, // Pass custom module sources for updates
        _existingModules: installedModules, // Pass all installed modules for manifest generation
      };

      // Call the standard install method
      const result = await this.install(installConfig);

      // Only succeed the spinner if it's still spinning
      // (install method might have stopped it if folder name changed)
      if (spinner.isSpinning) {
        spinner.succeed('Quick update complete!');
      }

      return {
        success: true,
        moduleCount: modulesToUpdate.length + 1, // +1 for core
        hadNewFields: promptedForNewFields,
        modules: ['core', ...modulesToUpdate],
        skippedModules: skippedModules,
        ides: configuredIdes,
      };
    } catch (error) {
      spinner.fail('Quick update failed');
      throw error;
    }
  }

  /**
   * Private: Prompt for update action
   */
  async promptUpdateAction() {
    const inquirer = require('inquirer');
    return await inquirer.prompt([
      {
        type: 'list',
        name: 'action',
        message: 'What would you like to do?',
        choices: [
          { name: 'Update existing installation', value: 'update' },
          { name: 'Remove and reinstall', value: 'reinstall' },
          { name: 'Cancel', value: 'cancel' },
        ],
      },
    ]);
  }

  /**
   * Handle legacy BMAD v4 migration with automatic backup
   * @param {string} projectDir - Project directory
   * @param {Object} legacyV4 - Legacy V4 detection result with offenders array
   */
  async handleLegacyV4Migration(projectDir, legacyV4) {
    console.log(chalk.yellow.bold('\n⚠️  Legacy BMAD v4 detected'));
    console.log(chalk.dim('The installer found legacy artefacts in your project.\n'));

    // Separate _bmad* folders (auto-backup) from other offending paths (manual cleanup)
    const bmadFolders = legacyV4.offenders.filter((p) => {
      const name = path.basename(p);
      return name.startsWith('_bmad'); // Only dot-prefixed folders get auto-backed up
    });
    const otherOffenders = legacyV4.offenders.filter((p) => {
      const name = path.basename(p);
      return !name.startsWith('_bmad'); // Everything else is manual cleanup
    });

    const inquirer = require('inquirer');

    // Show warning for other offending paths FIRST
    if (otherOffenders.length > 0) {
      console.log(chalk.yellow('⚠️  Recommended cleanup:'));
      console.log(chalk.dim('It is recommended to remove the following items before proceeding:\n'));
      for (const p of otherOffenders) console.log(chalk.dim(` - ${p}`));

      console.log(chalk.cyan('\nCleanup commands you can copy/paste:'));
      console.log(chalk.dim('macOS/Linux:'));
      for (const p of otherOffenders) console.log(chalk.dim(`  rm -rf '${p}'`));
      console.log(chalk.dim('Windows:'));
      for (const p of otherOffenders) console.log(chalk.dim(`  rmdir /S /Q "${p}"`));

      const { cleanedUp } = await inquirer.prompt([
        {
          type: 'confirm',
          name: 'cleanedUp',
          message: 'Have you completed the recommended cleanup? (You can proceed without it, but it is recommended)',
          default: false,
        },
      ]);

      if (cleanedUp) {
        console.log(chalk.green('✓ Cleanup acknowledged\n'));
      } else {
        console.log(chalk.yellow('⚠️  Proceeding without recommended cleanup\n'));
      }
    }

    // Handle _bmad* folders with automatic backup
    if (bmadFolders.length > 0) {
      console.log(chalk.cyan('The following legacy folders will be moved to v4-backup:'));
      for (const p of bmadFolders) console.log(chalk.dim(` - ${p}`));

      const { proceed } = await inquirer.prompt([
        {
          type: 'confirm',
          name: 'proceed',
          message: 'Proceed with backing up legacy v4 folders?',
          default: true,
        },
      ]);

      if (proceed) {
        const backupDir = path.join(projectDir, 'v4-backup');
        await fs.ensureDir(backupDir);

        for (const folder of bmadFolders) {
          const folderName = path.basename(folder);
          const backupPath = path.join(backupDir, folderName);

          // If backup already exists, add timestamp
          let finalBackupPath = backupPath;
          if (await fs.pathExists(backupPath)) {
            const timestamp = new Date().toISOString().replaceAll(/[:.]/g, '-').split('T')[0];
            finalBackupPath = path.join(backupDir, `${folderName}-${timestamp}`);
          }

          await fs.move(folder, finalBackupPath, { overwrite: false });
          console.log(chalk.green(`✓ Moved ${folderName} to ${path.relative(projectDir, finalBackupPath)}`));
        }
      } else {
        throw new Error('Installation cancelled by user');
      }
    }
  }

  /**
   * Read files-manifest.csv
   * @param {string} bmadDir - BMAD installation directory
   * @returns {Array} Array of file entries from files-manifest.csv
   */
  async readFilesManifest(bmadDir) {
    const filesManifestPath = path.join(bmadDir, '_cfg', 'files-manifest.csv');
    if (!(await fs.pathExists(filesManifestPath))) {
      return [];
    }

    try {
      const content = await fs.readFile(filesManifestPath, 'utf8');
      const lines = content.split('\n');
      const files = [];

      for (let i = 1; i < lines.length; i++) {
        // Skip header
        const line = lines[i].trim();
        if (!line) continue;

        // Parse CSV line properly handling quoted values
        const parts = [];
        let current = '';
        let inQuotes = false;

        for (const char of line) {
          if (char === '"') {
            inQuotes = !inQuotes;
          } else if (char === ',' && !inQuotes) {
            parts.push(current);
            current = '';
          } else {
            current += char;
          }
        }
        parts.push(current); // Add last part

        if (parts.length >= 4) {
          files.push({
            type: parts[0],
            name: parts[1],
            module: parts[2],
            path: parts[3],
            hash: parts[4] || null, // Hash may not exist in old manifests
          });
        }
      }

      return files;
    } catch (error) {
      console.warn('Warning: Could not read files-manifest.csv:', error.message);
      return [];
    }
  }

  /**
   * Detect custom and modified files
   * @param {string} bmadDir - BMAD installation directory
   * @param {Array} existingFilesManifest - Previous files from files-manifest.csv
   * @returns {Object} Object with customFiles and modifiedFiles arrays
   */
  async detectCustomFiles(bmadDir, existingFilesManifest) {
    const customFiles = [];
    const modifiedFiles = [];

    // Check if the manifest has hashes - if not, we can't detect modifications
    let manifestHasHashes = false;
    if (existingFilesManifest && existingFilesManifest.length > 0) {
      manifestHasHashes = existingFilesManifest.some((f) => f.hash);
    }

    // Build map of previously installed files from files-manifest.csv with their hashes
    const installedFilesMap = new Map();
    for (const fileEntry of existingFilesManifest) {
      if (fileEntry.path) {
        // Paths are relative to bmadDir. Legacy manifests incorrectly prefixed 'bmad/' -
        // strip it if present. This is safe because no real path inside bmadDir would
        // start with 'bmad/' (you'd never have _bmad/bmad/... as an actual structure).
        const relativePath = fileEntry.path.startsWith('bmad/') ? fileEntry.path.slice(5) : fileEntry.path;
        const absolutePath = path.join(bmadDir, relativePath);
        installedFilesMap.set(path.normalize(absolutePath), {
          hash: fileEntry.hash,
          relativePath: relativePath,
        });
      }
    }

    // Recursively scan bmadDir for all files
    const scanDirectory = async (dir) => {
      try {
        const entries = await fs.readdir(dir, { withFileTypes: true });
        for (const entry of entries) {
          const fullPath = path.join(dir, entry.name);

          if (entry.isDirectory()) {
            // Skip certain directories
            if (entry.name === 'node_modules' || entry.name === '.git') {
              continue;
            }
            await scanDirectory(fullPath);
          } else if (entry.isFile()) {
            const normalizedPath = path.normalize(fullPath);
            const fileInfo = installedFilesMap.get(normalizedPath);

            // Skip certain system files that are auto-generated
            const relativePath = path.relative(bmadDir, fullPath);
            const fileName = path.basename(fullPath);

            // Skip _cfg directory EXCEPT for agent customizations
            if (
              (relativePath.startsWith('_cfg/') || relativePath.startsWith('_cfg\\')) && // Allow .customize.yaml files in _cfg/agents/
              !(relativePath.includes('/agents/') && fileName.endsWith('.customize.yaml'))
            ) {
              continue;
            }

            // Skip config.yaml files - these are regenerated on each install/update
            // Users should use _cfg/agents/ override files instead
            if (fileName === 'config.yaml') {
              continue;
            }

            if (!fileInfo) {
              // File not in manifest = custom file
              customFiles.push(fullPath);
            } else if (manifestHasHashes && fileInfo.hash) {
              // File in manifest with hash - check if it was modified
              const currentHash = await this.manifest.calculateFileHash(fullPath);
              if (currentHash && currentHash !== fileInfo.hash) {
                // Hash changed = file was modified
                modifiedFiles.push({
                  path: fullPath,
                  relativePath: fileInfo.relativePath,
                });
              }
            }
            // If manifest doesn't have hashes, we can't detect modifications
            // so we just skip files that are in the manifest
          }
        }
      } catch {
        // Ignore errors scanning directories
      }
    };

    await scanDirectory(bmadDir);
    return { customFiles, modifiedFiles };
  }

  /**
   * Private: Create agent configuration files
   * @param {string} bmadDir - BMAD installation directory
   * @param {Object} userInfo - User information including name and language
   */
  async createAgentConfigs(bmadDir, userInfo = null) {
    const agentConfigDir = path.join(bmadDir, '_cfg', 'agents');
    await fs.ensureDir(agentConfigDir);

    // Get all agents from all modules
    const agents = [];
    const agentDetails = []; // For manifest generation

    // Check modules for agents (including core)
    const entries = await fs.readdir(bmadDir, { withFileTypes: true });
    for (const entry of entries) {
      if (entry.isDirectory() && entry.name !== '_cfg') {
        const moduleAgentsPath = path.join(bmadDir, entry.name, 'agents');
        if (await fs.pathExists(moduleAgentsPath)) {
          const agentFiles = await fs.readdir(moduleAgentsPath);
          for (const agentFile of agentFiles) {
            if (agentFile.endsWith('.md')) {
              const agentPath = path.join(moduleAgentsPath, agentFile);
              const agentContent = await fs.readFile(agentPath, 'utf8');

              // Skip agents with localskip="true"
              const hasLocalSkip = agentContent.match(/<agent[^>]*\slocalskip="true"[^>]*>/);
              if (hasLocalSkip) {
                continue; // Skip this agent - it should not have been installed
              }

              const agentName = path.basename(agentFile, '.md');

              // Extract any nodes with agentConfig="true"
              const agentConfigNodes = this.extractAgentConfigNodes(agentContent);

              agents.push({
                name: agentName,
                module: entry.name,
                agentConfigNodes: agentConfigNodes,
              });

              // Use shared AgentPartyGenerator to extract details
              let details = AgentPartyGenerator.extractAgentDetails(agentContent, entry.name, agentName);

              // Apply config overrides if they exist
              if (details) {
                const configPath = path.join(agentConfigDir, `${entry.name}-${agentName}.md`);
                if (await fs.pathExists(configPath)) {
                  const configContent = await fs.readFile(configPath, 'utf8');
                  details = AgentPartyGenerator.applyConfigOverrides(details, configContent);
                }
                agentDetails.push(details);
              }
            }
          }
        }
      }
    }

    // Create config file for each agent
    let createdCount = 0;
    let skippedCount = 0;

    // Load agent config template
    const templatePath = getSourcePath('utility', 'models', 'agent-config-template.md');
    const templateContent = await fs.readFile(templatePath, 'utf8');

    for (const agent of agents) {
      const configPath = path.join(agentConfigDir, `${agent.module}-${agent.name}.md`);

      // Skip if config file already exists (preserve custom configurations)
      if (await fs.pathExists(configPath)) {
        skippedCount++;
        continue;
      }

      // Build config content header
      let configContent = `# Agent Config: ${agent.name}\n\n`;

      // Process template and add agent-specific config nodes
      let processedTemplate = templateContent;

      // Replace {core:user_name} placeholder with actual user name if available
      if (userInfo && userInfo.userName) {
        processedTemplate = processedTemplate.replaceAll('{core:user_name}', userInfo.userName);
      }

      // Replace {core:communication_language} placeholder with actual language if available
      if (userInfo && userInfo.responseLanguage) {
        processedTemplate = processedTemplate.replaceAll('{core:communication_language}', userInfo.responseLanguage);
      }

      // If this agent has agentConfig nodes, add them after the existing comment
      if (agent.agentConfigNodes && agent.agentConfigNodes.length > 0) {
        // Find the agent-specific configuration nodes comment
        const commentPattern = /(\s*<!-- Agent-specific configuration nodes -->)/;
        const commentMatch = processedTemplate.match(commentPattern);

        if (commentMatch) {
          // Add nodes right after the comment
          let agentSpecificNodes = '';
          for (const node of agent.agentConfigNodes) {
            agentSpecificNodes += `\n    ${node}`;
          }

          processedTemplate = processedTemplate.replace(commentPattern, `$1${agentSpecificNodes}`);
        }
      }

      configContent += processedTemplate;

      // Ensure POSIX-compliant final newline
      if (!configContent.endsWith('\n')) {
        configContent += '\n';
      }

      await fs.writeFile(configPath, configContent, 'utf8');
      this.installedFiles.push(configPath); // Track agent config files
      createdCount++;
    }

    // Generate agent manifest with overrides applied
    await this.generateAgentManifest(bmadDir, agentDetails);

    return { total: agents.length, created: createdCount, skipped: skippedCount };
  }

  /**
   * Generate agent manifest XML file
   * @param {string} bmadDir - BMAD installation directory
   * @param {Array} agentDetails - Array of agent details
   */
  async generateAgentManifest(bmadDir, agentDetails) {
    const manifestPath = path.join(bmadDir, '_cfg', 'agent-manifest.csv');
    await AgentPartyGenerator.writeAgentParty(manifestPath, agentDetails, { forWeb: false });
  }

  /**
   * Extract nodes with agentConfig="true" from agent content
   * @param {string} content - Agent file content
   * @returns {Array} Array of XML nodes that should be added to agent config
   */
  extractAgentConfigNodes(content) {
    const nodes = [];

    try {
      // Find all XML nodes with agentConfig="true"
      // Match self-closing tags and tags with content
      const selfClosingPattern = /<([a-zA-Z][a-zA-Z0-9_-]*)\s+[^>]*agentConfig="true"[^>]*\/>/g;
      const withContentPattern = /<([a-zA-Z][a-zA-Z0-9_-]*)\s+[^>]*agentConfig="true"[^>]*>([\s\S]*?)<\/\1>/g;

      // Extract self-closing tags
      let match;
      while ((match = selfClosingPattern.exec(content)) !== null) {
        // Extract just the tag without children (structure only)
        const tagMatch = match[0].match(/<([a-zA-Z][a-zA-Z0-9_-]*)([^>]*)\/>/);
        if (tagMatch) {
          const tagName = tagMatch[1];
          const attributes = tagMatch[2].replace(/\s*agentConfig="true"/, ''); // Remove agentConfig attribute
          nodes.push(`<${tagName}${attributes}></${tagName}>`);
        }
      }

      // Extract tags with content
      while ((match = withContentPattern.exec(content)) !== null) {
        const fullMatch = match[0];
        const tagName = match[1];

        // Extract opening tag with attributes (removing agentConfig="true")
        const openingTagMatch = fullMatch.match(new RegExp(`<${tagName}([^>]*)>`));
        if (openingTagMatch) {
          const attributes = openingTagMatch[1].replace(/\s*agentConfig="true"/, '');
          // Add empty node structure (no children)
          nodes.push(`<${tagName}${attributes}></${tagName}>`);
        }
      }
    } catch (error) {
      console.error('Error extracting agentConfig nodes:', error);
    }

    return nodes;
  }

  /**
   * Copy IDE-specific documentation to BMAD docs
   * @param {Array} ides - List of selected IDEs
   * @param {string} bmadDir - BMAD installation directory
   */
  async copyIdeDocumentation(ides, bmadDir) {
    const docsDir = path.join(bmadDir, 'docs');
    await fs.ensureDir(docsDir);

    for (const ide of ides) {
      const sourceDocPath = path.join(getProjectRoot(), 'docs', 'ide-info', `${ide}.md`);
      const targetDocPath = path.join(docsDir, `${ide}-instructions.md`);

      if (await fs.pathExists(sourceDocPath)) {
        await this.copyFileWithPlaceholderReplacement(sourceDocPath, targetDocPath, this.bmadFolderName || 'bmad');
      }
    }
  }

  /**
   * Handle missing custom module sources interactively
   * @param {Map} customModuleSources - Map of custom module ID to info
   * @param {string} bmadDir - BMAD directory
   * @param {string} projectRoot - Project root directory
   * @param {string} operation - Current operation ('update', 'compile', etc.)
   * @param {Array} installedModules - Array of installed module IDs (will be modified)
   * @returns {Object} Object with validCustomModules array and keptModulesWithoutSources array
   */
  async handleMissingCustomSources(customModuleSources, bmadDir, projectRoot, operation, installedModules) {
    const validCustomModules = [];
    const keptModulesWithoutSources = []; // Track modules kept without sources
    const customModulesWithMissingSources = [];

    // Check which sources exist
    for (const [moduleId, customInfo] of customModuleSources) {
      if (await fs.pathExists(customInfo.sourcePath)) {
        validCustomModules.push({
          id: moduleId,
          name: customInfo.name,
          path: customInfo.sourcePath,
          info: customInfo,
        });
      } else {
        customModulesWithMissingSources.push({
          id: moduleId,
          name: customInfo.name,
          sourcePath: customInfo.sourcePath,
          relativePath: customInfo.relativePath,
          info: customInfo,
        });
      }
    }

    // If no missing sources, return immediately
    if (customModulesWithMissingSources.length === 0) {
      return {
        validCustomModules,
        keptModulesWithoutSources: [],
      };
    }

    // Stop any spinner for interactive prompts
    const currentSpinner = ora();
    if (currentSpinner.isSpinning) {
      currentSpinner.stop();
    }

    console.log(chalk.yellow(`\n⚠️  Found ${customModulesWithMissingSources.length} custom module(s) with missing sources:`));

    const inquirer = require('inquirer');
    let keptCount = 0;
    let updatedCount = 0;
    let removedCount = 0;

    for (const missing of customModulesWithMissingSources) {
      console.log(chalk.dim(`  • ${missing.name} (${missing.id})`));
      console.log(chalk.dim(`    Original source: ${missing.relativePath}`));
      console.log(chalk.dim(`    Full path: ${missing.sourcePath}`));

      const choices = [
        {
          name: 'Keep installed (will not be processed)',
          value: 'keep',
          short: 'Keep',
        },
        {
          name: 'Specify new source location',
          value: 'update',
          short: 'Update',
        },
      ];

      // Only add remove option if not just compiling agents
      if (operation !== 'compile-agents') {
        choices.push({
          name: '⚠️  REMOVE module completely (destructive!)',
          value: 'remove',
          short: 'Remove',
        });
      }

      const { action } = await inquirer.prompt([
        {
          type: 'list',
          name: 'action',
          message: `How would you like to handle "${missing.name}"?`,
          choices,
        },
      ]);

      switch (action) {
        case 'update': {
          const { newSourcePath } = await inquirer.prompt([
            {
              type: 'input',
              name: 'newSourcePath',
              message: 'Enter the new path to the custom module:',
              default: missing.sourcePath,
              validate: async (input) => {
                if (!input || input.trim() === '') {
                  return 'Please enter a path';
                }
                const expandedPath = path.resolve(input.trim());
                if (!(await fs.pathExists(expandedPath))) {
                  return 'Path does not exist';
                }
                // Check if it looks like a valid module
                const moduleYamlPath = path.join(expandedPath, 'module.yaml');
                const agentsPath = path.join(expandedPath, 'agents');
                const workflowsPath = path.join(expandedPath, 'workflows');

                if (!(await fs.pathExists(moduleYamlPath)) && !(await fs.pathExists(agentsPath)) && !(await fs.pathExists(workflowsPath))) {
                  return 'Path does not appear to contain a valid custom module';
                }
                return true;
              },
            },
          ]);

          // Update the source in manifest
          const resolvedPath = path.resolve(newSourcePath.trim());
          missing.info.sourcePath = resolvedPath;
          // Remove relativePath - we only store absolute sourcePath now
          delete missing.info.relativePath;
          await this.manifest.addCustomModule(bmadDir, missing.info);

          validCustomModules.push({
            id: moduleId,
            name: missing.name,
            path: resolvedPath,
            info: missing.info,
          });

          updatedCount++;
          console.log(chalk.green(`✓ Updated source location`));

          break;
        }
        case 'remove': {
          // Extra confirmation for destructive remove
          console.log(chalk.red.bold(`\n⚠️  WARNING: This will PERMANENTLY DELETE "${missing.name}" and all its files!`));
          console.log(chalk.red(`  Module location: ${path.join(bmadDir, moduleId)}`));

          const { confirm } = await inquirer.prompt([
            {
              type: 'confirm',
              name: 'confirm',
              message: chalk.red.bold('Are you absolutely sure you want to delete this module?'),
              default: false,
            },
          ]);

          if (confirm) {
            const { typedConfirm } = await inquirer.prompt([
              {
                type: 'input',
                name: 'typedConfirm',
                message: chalk.red.bold('Type "DELETE" to confirm permanent deletion:'),
                validate: (input) => {
                  if (input !== 'DELETE') {
                    return chalk.red('You must type "DELETE" exactly to proceed');
                  }
                  return true;
                },
              },
            ]);

            if (typedConfirm === 'DELETE') {
              // Remove the module from filesystem and manifest
              const modulePath = path.join(bmadDir, moduleId);
              if (await fs.pathExists(modulePath)) {
                const fsExtra = require('fs-extra');
                await fsExtra.remove(modulePath);
                console.log(chalk.yellow(`  ✓ Deleted module directory: ${path.relative(projectRoot, modulePath)}`));
              }

              await this.manifest.removeModule(bmadDir, moduleId);
              await this.manifest.removeCustomModule(bmadDir, moduleId);
              console.log(chalk.yellow(`  ✓ Removed from manifest`));

              // Also remove from installedModules list
              if (installedModules && installedModules.includes(moduleId)) {
                const index = installedModules.indexOf(moduleId);
                if (index !== -1) {
                  installedModules.splice(index, 1);
                }
              }

              removedCount++;
              console.log(chalk.red.bold(`✓ "${missing.name}" has been permanently removed`));
            } else {
              console.log(chalk.dim('  Removal cancelled - module will be kept'));
              keptCount++;
            }
          } else {
            console.log(chalk.dim('  Removal cancelled - module will be kept'));
            keptCount++;
          }

          break;
        }
        case 'keep': {
          keptCount++;
          keptModulesWithoutSources.push(moduleId);
          console.log(chalk.dim(`  Module will be kept as-is`));

          break;
        }
        // No default
      }
    }

    // Show summary
    if (keptCount > 0 || updatedCount > 0 || removedCount > 0) {
      console.log(chalk.dim(`\nSummary for custom modules with missing sources:`));
      if (keptCount > 0) console.log(chalk.dim(`  • ${keptCount} module(s) kept as-is`));
      if (updatedCount > 0) console.log(chalk.dim(`  • ${updatedCount} module(s) updated with new sources`));
      if (removedCount > 0) console.log(chalk.red(`  • ${removedCount} module(s) permanently deleted`));
    }

    return {
      validCustomModules,
      keptModulesWithoutSources,
    };
  }
}

module.exports = { Installer };