"use strict";

const assert = require("node:assert");
const fs = require("node:fs");
const os = require("node:os");
const path = require("node:path");
const { chromium } = require("playwright");

const BASE_URL = (process.env.MNOTE_WEB_SMOKE_BASE_URL || "http://127.0.0.1:3000").replace(/\/+$/, "");
const UI_TIMEOUT_MS = Number(process.env.MNOTE_SMOKE_UI_TIMEOUT_MS || 30_000);
const OUTPUT_DIR = path.join(process.cwd(), "tmp", "task437-local-folder-asset-trash-lifecycle-smoke");
const RESULT_PATH = path.join(OUTPUT_DIR, "result.json");

function fileUrl(localPath) {
  return `file://${localPath}`;
}

function treeUrl(root) {
  const url = new URL(`${BASE_URL}/`);
  url.searchParams.set("treeView", "filetree");
  url.searchParams.set("sourceKind", "local_folder");
  url.searchParams.set("rootUri", fileUrl(root));
  return url.toString();
}

function commandUrl() {
  return `${BASE_URL}/api/tree/commands`;
}

async function waitForFileTreeRow(page, rowId) {
  await page.locator(`.tree-row[data-row-id="${rowId}"]`).waitFor({
    state: "visible",
    timeout: UI_TIMEOUT_MS,
  });
}

async function waitForFileTreeRowGone(page, rowId) {
  await page.locator(`.tree-row[data-row-id="${rowId}"]`).waitFor({
    state: "detached",
    timeout: UI_TIMEOUT_MS,
  });
}

async function postTreeCommand(page, payload) {
  return await page.evaluate(async ({ url, body }) => {
    const response = await fetch(url, {
      method: "POST",
      headers: { "content-type": "application/json" },
      body: JSON.stringify(body),
    });
    const json = await response.json().catch(() => null);
    return { status: response.status, json };
  }, { url: commandUrl(), body: payload });
}

async function quickLogin(page) {
  await page.goto(`${BASE_URL}/auth`, { waitUntil: "domcontentloaded", timeout: UI_TIMEOUT_MS });
  const quickLoginButton = page.getByRole("button", { name: "测试账号快速登录" });
  if (await quickLoginButton.count()) {
    await quickLoginButton.click({ timeout: UI_TIMEOUT_MS });
    await page.waitForURL((url) => url.pathname === "/", { timeout: UI_TIMEOUT_MS });
  }
}

async function runStep(label, navigationEvents, action) {
  const before = navigationEvents.length;
  const detail = await action();
  const after = navigationEvents.length;
  assert.equal(after, before, `${label} 不应触发浏览器导航或 reload`);
  return {
    label,
    navigationEventsBefore: before,
    navigationEventsAfter: after,
    detail: detail || null,
  };
}

async function run() {
  fs.mkdirSync(OUTPUT_DIR, { recursive: true });
  const root = fs.mkdtempSync(path.join(os.tmpdir(), "mnote-local-asset-trash-smoke-"));
  fs.mkdirSync(path.join(root, "docs"), { recursive: true });
  fs.writeFileSync(path.join(root, "README.md"), "# Local Root\n", "utf8");
  fs.writeFileSync(path.join(root, "docs", "asset.txt"), "asset body", "utf8");

  const browser = await chromium.launch({ headless: true });
  const context = await browser.newContext({
    viewport: { width: 1280, height: 860 },
    extraHTTPHeaders: {
      "x-mnote-actor-id": "user_real",
      "x-mnote-actor-type": "user",
    },
  });
  const page = await context.newPage();
  const navigationEvents = [];
  page.on("framenavigated", (frame) => {
    if (frame === page.mainFrame()) {
      navigationEvents.push({ url: frame.url(), timestamp: Date.now() });
    }
  });

  const rowId = "local:asset:docs/asset.txt";
  const rootUri = fileUrl(root);
  const steps = [];
  try {
    page.on("dialog", async (dialog) => {
      if (dialog.type() === "confirm") await dialog.accept();
      else await dialog.dismiss().catch(() => {});
    });
    await quickLogin(page);
    await page.goto(treeUrl(root), { waitUntil: "domcontentloaded", timeout: UI_TIMEOUT_MS });
    await waitForFileTreeRow(page, rowId);
    navigationEvents.length = 0;

    steps.push(await runStep("local asset Delete 进入本地回收站", navigationEvents, async () => {
      await page.locator(`.tree-row[data-row-id="${rowId}"]`).click({ timeout: UI_TIMEOUT_MS });
      await page.keyboard.press("Delete");
      await waitForFileTreeRowGone(page, rowId);
      assert(!fs.existsSync(path.join(root, "docs", "asset.txt")), "Delete 后源文件应消失");
      assert(fs.existsSync(path.join(root, ".mnote", "trash", "asset.txt")), "Delete 后文件应进入 .mnote/trash");
      const index = fs.readFileSync(path.join(root, ".mnote", "trash-index.json"), "utf8");
      assert(index.includes("local-file:docs/asset.txt"), "trash index 应记录 local_file entry");
      return { trashIndexHasLocalFile: true };
    }));

    steps.push(await runStep("local asset restore 回原路径", navigationEvents, async () => {
      const result = await postTreeCommand(page, {
        action: "restore",
        sourceKind: "local_folder",
        rootUri,
        documentId: rowId,
      });
      assert.equal(result.status, 200, `restore failed: ${JSON.stringify(result)}`);
      assert.equal(result.json?.result?.execution?.canonicalCommand, "tree.resource.restore");
      await waitForFileTreeRow(page, rowId);
      assert(fs.existsSync(path.join(root, "docs", "asset.txt")), "restore 后源文件应恢复");
      return result.json?.result?.execution || null;
    }));

    steps.push(await runStep("local asset purge 清理 trash 文件与索引", navigationEvents, async () => {
      let result = await postTreeCommand(page, {
        action: "delete",
        sourceKind: "local_folder",
        rootUri,
        documentId: rowId,
      });
      assert.equal(result.status, 200, `delete before purge failed: ${JSON.stringify(result)}`);
      await waitForFileTreeRowGone(page, rowId);
      result = await postTreeCommand(page, {
        action: "purge",
        sourceKind: "local_folder",
        rootUri,
        documentId: rowId,
      });
      assert.equal(result.status, 200, `purge failed: ${JSON.stringify(result)}`);
      assert.equal(result.json?.result?.execution?.canonicalCommand, "tree.resource.purge");
      assert(!fs.existsSync(path.join(root, "docs", "asset.txt")), "purge 后源文件不应存在");
      assert(!fs.existsSync(path.join(root, ".mnote", "trash", "asset.txt")), "purge 后 trash 文件不应存在");
      const index = fs.readFileSync(path.join(root, ".mnote", "trash-index.json"), "utf8");
      assert(!index.includes("local-file:docs/asset.txt"), "purge 后 trash index 应清理 entry");
      return result.json?.result?.execution || null;
    }));

    const result = {
      ok: true,
      baseUrl: BASE_URL,
      root,
      steps,
      navigationEvents,
    };
    fs.writeFileSync(RESULT_PATH, `${JSON.stringify(result, null, 2)}\n`, "utf8");
    console.log(`task437 local folder asset trash lifecycle smoke passed: ${RESULT_PATH}`);
  } finally {
    await browser.close().catch(() => {});
    fs.rmSync(root, { recursive: true, force: true });
  }
}

run().catch((error) => {
  const result = {
    ok: false,
    baseUrl: BASE_URL,
    error: error && error.stack ? error.stack : String(error),
  };
  fs.mkdirSync(OUTPUT_DIR, { recursive: true });
  fs.writeFileSync(RESULT_PATH, `${JSON.stringify(result, null, 2)}\n`, "utf8");
  console.error(error && error.stack ? error.stack : error);
  process.exit(1);
});