#!/usr/bin/env node
"use strict";

const fs = require("node:fs");
const path = require("node:path");
const { chromium } = require("playwright");
const {
  BASE_URL,
  UI_TIMEOUT_MS,
  getViewerIdentity,
} = require("./tree-shell-smoke-helpers");

const TASK = "task774-openhub-mnote-send-and-file-edit-e2e";
const OUTPUT_DIR = path.join(process.cwd(), "tmp", "7-68-runtime");
const RESULT_PATH = path.join(OUTPUT_DIR, "openhub-send-smoke-result.json");
const WORKSPACE_ROOT = process.env.MNOTE_OPENHUB_SMOKE_ROOT
  || "/mnt/Data1T/Mnote_data/users/mnote-e2e/workspaces/my-space";
const ROOT_URI = `file://${WORKSPACE_ROOT}`;
const TEST_EMAIL = "mnote.e2e@example.com";
const TEST_PASSWORD = "MnoteE2E123!";
const ENABLE_FILE_EDIT = process.env.MNOTE_OPENHUB_FILE_EDIT === "1";
const CHROMIUM_EXECUTABLE_PATH = process.env.PLAYWRIGHT_CHROMIUM_EXECUTABLE_PATH
  || ["/usr/bin/chromium-browser", "/usr/bin/chromium", "/usr/bin/google-chrome-stable", "/usr/bin/google-chrome"]
    .find((candidate) => fs.existsSync(candidate));

class SmokeFailure extends Error {
  constructor(kind, message, details = {}) {
    super(message);
    this.name = "SmokeFailure";
    this.kind = kind;
    this.details = details;
  }
}

async function assertServiceReachable(baseUrl) {
  let response;
  try {
    response = await fetch(`${baseUrl}/health`, { redirect: "manual", signal: AbortSignal.timeout(6_000) });
  } catch (error) {
    throw new SmokeFailure("service_unreachable", `MNote 3000 服务不可达：${error.message}`, { baseUrl });
  }
  if (!response.ok && response.status !== 303) {
    throw new SmokeFailure("service_unreachable", `MNote /health 返回异常：HTTP ${response.status}`, { baseUrl });
  }
}

async function loginWithUiFirst(page, requestContext) {
  await page.goto(`${BASE_URL}/auth`, { waitUntil: "commit", timeout: UI_TIMEOUT_MS });
  if (!page.url().includes("/auth")) {
    return getViewerIdentity(requestContext);
  }

  const quickLogin = page.getByRole("button", { name: "测试账号快速登录" });
  if (await quickLogin.isVisible({ timeout: 8_000 }).catch(() => false)) {
    await quickLogin.click({ timeout: UI_TIMEOUT_MS });
    await page.waitForURL((url) => !url.toString().includes("/auth"), { timeout: UI_TIMEOUT_MS, waitUntil: "commit" }).catch(() => undefined);
  }

  if (page.url().includes("/auth")) {
    const account = page.locator('input[name="account"], input[type="email"], input[data-auth-field="account"]').first();
    const password = page.locator('input[name="password"], input[type="password"]').first();
    const submit = page.getByRole("button", { name: /^登录$|账号登录|登录$/ }).first();
    if (!(await account.isVisible({ timeout: 2_000 }).catch(() => false)) || !(await password.isVisible({ timeout: 2_000 }).catch(() => false))) {
      throw new SmokeFailure("auth_failed", "认证页未出现快速登录，也找不到账号密码输入框", { url: page.url() });
    }
    await account.fill(TEST_EMAIL, { timeout: UI_TIMEOUT_MS });
    await password.fill(TEST_PASSWORD, { timeout: UI_TIMEOUT_MS });
    await submit.click({ timeout: UI_TIMEOUT_MS });
    await page.waitForURL((url) => !url.toString().includes("/auth"), { timeout: UI_TIMEOUT_MS, waitUntil: "commit" }).catch(() => undefined);
  }

  if (page.url().includes("/auth")) {
    throw new SmokeFailure("auth_failed", "测试账号登录后仍停留在 /auth", { url: page.url() });
  }

  return getViewerIdentity(requestContext);
}

function mnoteScopeQuery(openhubIframeUrl) {
  const queryStart = openhubIframeUrl.indexOf("?");
  if (queryStart < 0) return "";
  return openhubIframeUrl.slice(queryStart);
}

function parseStream(streamText) {
  let sessionId = "";
  let assistantText = "";
  const eventTypes = [];
  for (const line of streamText.split(/\r?\n/)) {
    if (!line.startsWith("data: ")) continue;
    try {
      const data = JSON.parse(line.slice(6));
      const payload = data.payload && data.payload.type
        ? { type: data.payload.type, ...data.payload.properties }
        : data;
      if (payload.type) eventTypes.push(payload.type);
      if (payload.conversation_id) sessionId = payload.conversation_id;
      if (["text", "content", "assistant_message", "message"].includes(payload.type) && payload.content) {
        assistantText += payload.content;
      }
    } catch {}
  }
  return {
    sessionId,
    eventTypes: [...new Set(eventTypes)],
    assistantTextSnippet: assistantText.slice(0, 700),
  };
}

async function bootstrapOpenHub(requestContext) {
  const response = await requestContext.post(`${BASE_URL}/api/page-ai/openhub/bootstrap`, {
    data: {
      pageId: "task774-openhub-send-smoke",
      workspaceId: "local-ws:mnote-e2e:my-space",
      pageTitle: "OpenHub send smoke",
      rootUri: ROOT_URI,
      allowedRoots: [],
    },
    timeout: UI_TIMEOUT_MS,
  });
  const payload = await response.json();
  if (!response.ok() || !payload.openhubIframeUrl) {
    throw new SmokeFailure("bootstrap_failed", `OpenHub bootstrap 失败：HTTP ${response.status()}`, payload);
  }
  return payload;
}

async function fetchOpenHubModels(requestContext, scopeQuery) {
  const response = await requestContext.get(`${BASE_URL}/page-ai/openhub/ai/api/models${scopeQuery}`, { timeout: UI_TIMEOUT_MS });
  const payload = await response.json();
  const models = payload?.data?.models || [];
  const selected = models.find((model) => model.providerID === "opencodego" && model.modelID === "deepseek-v4-flash")
    || models.find((model) => model.providerID === "opencode" && model.modelID === "deepseek-v4-flash-free")
    || models.find((model) => model.providerID === "opencodego")
    || models.find((model) => model.providerID === "opencode")
    || payload?.data?.default
    || models[0];
  if (!response.ok() || !models.length || !selected) {
    throw new SmokeFailure("models_empty", `OpenHub /api/models 未返回可用真实模型：HTTP ${response.status()}`, payload);
  }
  return {
    modelCount: models.length,
    default: payload.data.default,
    source: payload.data.source,
    selected,
  };
}

async function sendPrompt(requestContext, scopeQuery, model, prompt) {
  const response = await requestContext.post(`${BASE_URL}/page-ai/openhub/ai/api/query/stream${scopeQuery}`, {
    data: {
      question: prompt,
      conversation_id: "",
      agent: "build",
      model: {
        providerID: model.providerID,
        modelID: model.modelID,
        currentUsage: model.currentUsage || 0,
        monthlyLimit: model.monthlyLimit || 0,
      },
    },
    headers: { "content-type": "application/json" },
    timeout: 180_000,
  });
  const streamText = await response.text();
  if (!response.ok()) {
    throw new SmokeFailure("query_stream_failed", `OpenHub query stream 失败：HTTP ${response.status()}`, {
      snippet: streamText.slice(0, 800),
    });
  }
  return {
    status: response.status(),
    length: streamText.length,
    snippet: streamText.slice(0, 1_200),
    ...parseStream(streamText),
  };
}

async function fetchMessages(requestContext, scopeQuery, sessionId) {
  const response = await requestContext.get(`${BASE_URL}/page-ai/openhub/ai/api/sessions/${encodeURIComponent(sessionId)}/messages${scopeQuery}`, {
    timeout: UI_TIMEOUT_MS,
  });
  const payload = await response.json();
  const messages = payload?.data || [];
  if (!response.ok() || !messages.some((message) => message.role === "user")) {
    throw new SmokeFailure("messages_not_persisted", `OpenHub SQLite messages 未持久化或不可读：HTTP ${response.status()}`, payload);
  }
  return {
    status: response.status(),
    count: messages.length,
    roles: messages.map((message) => message.role),
    last: messages.slice(-2).map((message) => ({
      role: message.role,
      content: String(message.content || "").slice(0, 300),
      model: message.model,
    })),
  };
}

async function runFileEditProbe(requestContext, scopeQuery, model) {
  const fixtureDir = path.join(WORKSPACE_ROOT, "knowledge-rag-fixtures-7-68");
  fs.mkdirSync(fixtureDir, { recursive: true });
  const fixturePath = path.join(fixtureDir, `task774-openhub-file-edit-${Date.now()}.md`);
  fs.writeFileSync(fixturePath, "# OpenHub File Edit Smoke\n\nstatus: pending\n", "utf8");
  const gitDir = path.join(WORKSPACE_ROOT, ".git");
  const gitExistedBefore = fs.existsSync(gitDir);
  const prompt = [
    `请直接修改这个文件：${fixturePath}`,
    "只把 `status: pending` 改成 `status: MNOTE_OPENHUB_FILE_EDIT_OK`。",
    "不要改其它文件。完成后只简短说明已修改。",
  ].join("\n");
  const stream = await sendPrompt(requestContext, scopeQuery, model, prompt);
  const finalContent = fs.readFileSync(fixturePath, "utf8");
  const ok = finalContent.includes("status: MNOTE_OPENHUB_FILE_EDIT_OK");
  if (!ok) {
    throw new SmokeFailure("file_edit_not_applied", "OpenHub/opencode 未把 fixture 文件改到期望内容", {
      fixturePath,
      finalContent,
      stream,
    });
  }
  return {
    fixturePath,
    ok,
    finalContent,
    gitExistedBefore,
    gitExistsAfter: fs.existsSync(gitDir),
    stream,
  };
}

async function main() {
  fs.mkdirSync(OUTPUT_DIR, { recursive: true });
  let browser;
  let context;
  let result = { ok: false, task: TASK, baseUrl: BASE_URL };
  try {
    await assertServiceReachable(BASE_URL);
    browser = await chromium.launch({
      headless: process.env.HEADFUL !== "1",
      ...(CHROMIUM_EXECUTABLE_PATH ? { executablePath: CHROMIUM_EXECUTABLE_PATH } : {}),
    });
    context = await browser.newContext({ viewport: { width: 1440, height: 960 }, locale: "zh-CN" });
    const page = await context.newPage();
    const viewer = await loginWithUiFirst(page, context.request);
    const bootstrap = await bootstrapOpenHub(context.request);
    const scopeQuery = mnoteScopeQuery(bootstrap.openhubIframeUrl);
    const models = await fetchOpenHubModels(context.request, scopeQuery);
    const smokePrompt = `请只回复 MNOTE_OPENHUB_SMOKE_OK，不要解释。时间戳 ${Date.now()}`;
    const stream = await sendPrompt(context.request, scopeQuery, models.selected, smokePrompt);
    if (!stream.sessionId) {
      throw new SmokeFailure("query_stream_missing_session", "OpenHub query stream 未返回 conversation_id", stream);
    }
    const messages = await fetchMessages(context.request, scopeQuery, stream.sessionId);
    const fileEdit = ENABLE_FILE_EDIT
      ? await runFileEditProbe(context.request, scopeQuery, models.selected)
      : { skipped: true, reason: "设置 MNOTE_OPENHUB_FILE_EDIT=1 后执行真实文件编辑验收" };
    result = {
      ok: true,
      task: TASK,
      baseUrl: BASE_URL,
      viewer,
      bootstrap: {
        ok: bootstrap.ok,
        authTruth: bootstrap.authTruth,
        iframeUrlPrefix: bootstrap.openhubIframeUrl.slice(0, 160),
        rootUri: bootstrap.scope?.workspaceScope?.rootUri,
      },
      models,
      stream,
      messages,
      fileEdit,
    };
  } catch (error) {
    result = {
      ...result,
      ok: false,
      failureKind: error instanceof SmokeFailure ? error.kind : "unexpected_error",
      error: error instanceof Error ? error.stack || error.message : String(error),
      details: error instanceof SmokeFailure ? error.details : undefined,
    };
  } finally {
    fs.writeFileSync(RESULT_PATH, `${JSON.stringify(result, null, 2)}\n`, "utf8");
    if (context) await context.close().catch(() => undefined);
    if (browser) await browser.close().catch(() => undefined);
  }
  console.log(JSON.stringify(result, null, 2));
  if (!result.ok) process.exit(1);
}

main().catch((error) => {
  console.error(error instanceof Error ? error.stack || error.message : String(error));
  process.exit(1);
});