refactor bridge plugin loading

server/plugin-system/obsidian-plugin.js

@@ -0,0 +1,110 @@
+const fs = require("fs");
+const path = require("path");
+
+async function readManifestId(sourceDir) {
+  const manifestPath = path.join(sourceDir, "manifest.json");
+  const content = await fs.promises.readFile(manifestPath, "utf-8");
+  const manifest = JSON.parse(content);
+
+  if (!manifest.id) {
+    throw new Error(`No "id" in manifest.json at ${sourceDir}`);
+  }
+
+  return manifest.id;
+}
+
+async function installObsidianPlugin(sourceDir, vaultPath) {
+  const pluginId = await readManifestId(sourceDir);
+
+  const obsidianDir = path.join(vaultPath, ".obsidian");
+
+  try {
+    await fs.promises.access(obsidianDir);
+  } catch {
+    return { installed: false, pluginId };
+  }
+
+  const targetDir = path.join(obsidianDir, "plugins", pluginId);
+  await fs.promises.mkdir(targetDir, { recursive: true });
+
+  const files = await fs.promises.readdir(sourceDir);
+
+  for (const file of files) {
+    const srcPath = path.join(sourceDir, file);
+    const stat = await fs.promises.stat(srcPath);
+
+    if (stat.isFile()) {
+      await fs.promises.copyFile(srcPath, path.join(targetDir, file));
+    }
+  }
+
+  const pluginsConfigFile = path.join(obsidianDir, "community-plugins.json");
+  let plugins = [];
+
+  try {
+    const content = await fs.promises.readFile(pluginsConfigFile, "utf-8");
+    plugins = JSON.parse(content);
+  } catch {
+    plugins = [];
+  }
+
+  if (!plugins.includes(pluginId)) {
+    plugins.push(pluginId);
+    await fs.promises.writeFile(pluginsConfigFile, JSON.stringify(plugins));
+  }
+
+  return { installed: true, pluginId };
+}
+
+async function removeObsidianPlugin(sourceDir, vaultPath) {
+  const pluginId = await readManifestId(sourceDir);
+
+  const obsidianDir = path.join(vaultPath, ".obsidian");
+
+  try {
+    await fs.promises.access(obsidianDir);
+  } catch {
+    return { removed: false, pluginId };
+  }
+
+  const targetDir = path.join(obsidianDir, "plugins", pluginId);
+
+  try {
+    await fs.promises.rm(targetDir, { recursive: true });
+  } catch {
+    // Already gone
+  }
+
+  const pluginsConfigFile = path.join(obsidianDir, "community-plugins.json");
+
+  try {
+    const content = await fs.promises.readFile(pluginsConfigFile, "utf-8");
+    let plugins = JSON.parse(content);
+    plugins = plugins.filter((id) => id !== pluginId);
+    await fs.promises.writeFile(pluginsConfigFile, JSON.stringify(plugins));
+  } catch {
+    // No config file or parse error  -  nothing to remove from
+  }
+
+  return { removed: true, pluginId };
+}
+
+async function isObsidianPluginInstalled(pluginId, vaultPath) {
+  const pluginDir = path.join(vaultPath, ".obsidian", "plugins", pluginId);
+  const manifestPath = path.join(pluginDir, "manifest.json");
+  const mainPath = path.join(pluginDir, "main.js");
+
+  try {
+    await fs.promises.access(manifestPath);
+    await fs.promises.access(mainPath);
+    return true;
+  } catch {
+    return false;
+  }
+}
+
+module.exports = {
+  installObsidianPlugin,
+  removeObsidianPlugin,
+  isObsidianPluginInstalled,
+};