import { fsShim } from "./fs/index.js";
import { installRequestUrlShim } from "./request-url.js";
import { vaultService } from "../services/vault-service.js";
import { showPluginInstallDialog } from "../ui/bootstrap.js";

function resolveVaultId() {
  const urlParams = new URLSearchParams(window.location.search);
  window.__currentVaultId =
    urlParams.get("vault") || localStorage.getItem("last-vault") || "";
}

function initVaultConfig() {
  try {
    const vaultParam = window.__currentVaultId
      ? "?vault=" + encodeURIComponent(window.__currentVaultId)
      : "";

    const xhr = new XMLHttpRequest();

    xhr.open("GET", "/api/vault/info" + vaultParam, false);
    xhr.send();

    if (xhr.status === 200) {
      const info = JSON.parse(xhr.responseText);

      window.__currentVaultId = info.id;
      localStorage.setItem("last-vault", info.id);
      window.__obsidianVersion = info.version || "0.0.0";

      window.__vaultConfig = {
        id: info.id,
        path: "/",
      };

      window.__ignisPlugin = info.ignisPlugin || null;

      console.log("[ignis] Vault:", window.__vaultConfig);
      console.log("[ignis] Obsidian version:", window.__obsidianVersion);
    } else {
      console.warn("[ignis] No vault found, will show manager");
    }
  } catch (e) {
    console.error("[ignis] Failed to fetch vault config:", e);
  }
}

function initVaultList() {
  try {
    vaultService.listVaultsSync();
  } catch (e) {
    window.__vaultList = [];
  }
}

function initMetadataCache() {
  try {
    const vaultParam = window.__currentVaultId
      ? "?vault=" + encodeURIComponent(window.__currentVaultId)
      : "";

    const xhr = new XMLHttpRequest();

    xhr.open("GET", "/api/fs/tree" + vaultParam, false);
    xhr.send();

    if (xhr.status === 200) {
      const tree = JSON.parse(xhr.responseText);

      fsShim._metadataCache.populate(tree);
      fsShim._metadataCache.set("", { type: "directory" });
      fsShim._metadataCache.set("/", { type: "directory" });

      console.log(
        "[ignis] Metadata cache populated:",
        fsShim._metadataCache.size,
        "entries",
      );
    } else {
      console.error("[ignis] Failed to fetch metadata tree:", xhr.status);
    }
  } catch (e) {
    console.error("[ignis] Failed to init metadata cache:", e);
  }
}

function initPluginPrompt() {
  if (
    !window.__ignisPlugin ||
    window.__ignisPlugin.installed ||
    window.__ignisPlugin.prompted
  ) {
    return;
  }

  const vaultId = window.__currentVaultId;

  const observer = new MutationObserver(() => {
    if (document.querySelector(".workspace")) {
      observer.disconnect();
      showPluginInstallDialog(vaultId);
    }
  });

  observer.observe(document.documentElement, {
    childList: true,
    subtree: true,
  });
}

export function initialize() {
  resolveVaultId();
  initVaultConfig();
  initVaultList();
  initMetadataCache();
  installRequestUrlShim();
  initPluginPrompt();
}