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

const assert = require("node:assert");
const fs = require("node:fs");
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(/\/+$/, "");
const ROOT_PATH = process.env.MNOTE_KNOWLEDGE_RAG_ROOT_PATH || "/mnt/Data1T/Mnote_data/users/mnote-e2e/workspaces/my-space";
const ROOT_URI = process.env.MNOTE_KNOWLEDGE_RAG_ROOT_URI || `file://${ROOT_PATH}`;
const WORKSPACE_ID = process.env.MNOTE_KNOWLEDGE_RAG_WORKSPACE_ID || "local-ws:mnote-e2e:my-space";
const FIXTURE_DIR = "knowledge-rag-fixtures-7-50";
const OUTPUT_DIR = path.join(process.cwd(), "tmp", "task534-knowledge-rag-source-management-scope-smoke");
const RESULT_PATH = path.join(OUTPUT_DIR, "result.json");
const SCREENSHOT_PATH = path.join(OUTPUT_DIR, "source-management.png");
const UI_TIMEOUT_MS = Number(process.env.MNOTE_SMOKE_UI_TIMEOUT_MS || 30_000);
const POLL_TIMEOUT_MS = Number(process.env.MNOTE_KNOWLEDGE_RAG_SCOPE_TIMEOUT_MS || 240_000);
const CHROMIUM_EXECUTABLE_PATH = process.env.PLAYWRIGHT_CHROMIUM_EXECUTABLE_PATH
  || ["/usr/bin/google-chrome-stable", "/usr/bin/google-chrome", "/snap/bin/chromium", "/usr/bin/chromium"]
    .find((candidate) => fs.existsSync(candidate));

function sleep(ms) {
  return new Promise((resolve) => setTimeout(resolve, ms));
}

async function signIn(context) {
  const response = await context.request.post(`${BASE_URL}/api/auth`, {
    data: {
      action: "auth:signIn",
      args: {
        provider: "password",
        params: {
          email: "mnote.e2e@example.com",
          password: process.env.MNOTE_E2E_PASSWORD || "MnoteE2E123!",
          flow: "signIn",
        },
      },
    },
  });
  assert(response.ok(), `登录失败: ${response.status()} ${await response.text()}`);
}

async function apiJson(context, method, url, data) {
  const response = await context.request.fetch(url, {
    method,
    data,
    headers: {
      "x-mnote-actor-id": "mnote-e2e",
      "x-mnote-actor-type": "user",
      accept: "application/json",
    },
    timeout: UI_TIMEOUT_MS,
  });
  const text = await response.text();
  let payload = null;
  try {
    payload = text ? JSON.parse(text) : null;
  } catch (_) {
    payload = { rawText: text };
  }
  return { ok: response.ok(), status: response.status(), payload, text };
}

async function status(context) {
  const params = new URLSearchParams({ rootUri: ROOT_URI, workspaceId: WORKSPACE_ID });
  const result = await apiJson(context, "GET", `${BASE_URL}/api/knowledge-rag/status?${params.toString()}`);
  assert(result.ok, `knowledge-rag status 失败: ${result.status} ${result.text.slice(0, 1000)}`);
  return result.payload;
}

function entryFor(statusPayload, sourcePath) {
  const entries = statusPayload?.registry?.entries;
  return Array.isArray(entries) ? entries.find((entry) => entry.sourceRootRelativePath === sourcePath) : null;
}

async function ingest(context, sourcePaths) {
  const result = await apiJson(context, "POST", `${BASE_URL}/api/knowledge-rag/ingest`, {
    rootUri: ROOT_URI,
    workspaceId: WORKSPACE_ID,
    sources: sourcePaths.map((sourcePath) => ({ sourcePath })),
  });
  assert(result.ok, `knowledge-rag ingest 失败: ${result.status} ${result.text.slice(0, 1000)}`);
  return result.payload;
}

async function waitForIndexed(context, sourcePaths) {
  const startedAt = Date.now();
  let lastStatus = null;
  while (Date.now() - startedAt < POLL_TIMEOUT_MS) {
    lastStatus = await status(context);
    const allIndexed = sourcePaths.every((sourcePath) => {
      const entry = entryFor(lastStatus, sourcePath);
      return entry && entry.indexedAtMs && entry.lightRagDocId && !entry.stale && !entry.deletedAtMs;
    });
    if (allIndexed) return lastStatus;
    await sleep(5_000);
  }
  throw new Error(`等待 source scope fixture 入库超时: ${JSON.stringify({ sourcePaths, lastStatus }, null, 2).slice(0, 4000)}`);
}

async function query(context, queryText, sourcePaths) {
  const result = await apiJson(context, "POST", `${BASE_URL}/api/knowledge-rag/query`, {
    rootUri: ROOT_URI,
    workspaceId: WORKSPACE_ID,
    query: queryText,
    mode: "mix",
    topK: 12,
    chunkTopK: 12,
    includeChunkContent: true,
    sourcePaths,
  });
  assert(result.ok, `knowledge-rag query 失败: ${result.status} ${result.text.slice(0, 1000)}`);
  return result.payload;
}

async function openKnowledgePanel(page) {
  const url = new URL(`${BASE_URL}/`);
  url.searchParams.set("sourceKind", "local_folder");
  url.searchParams.set("rootUri", ROOT_URI);
  url.searchParams.set("treeView", "filetree");
  await page.goto(url.toString(), { waitUntil: "domcontentloaded", timeout: UI_TIMEOUT_MS });
  await page.locator('[data-testid="mnote-knowledge-rag-settings-toggle"]').click({ timeout: UI_TIMEOUT_MS });
  await page.locator('[data-testid="mnote-knowledge-rag-settings-popover"]').waitFor({
    state: "visible",
    timeout: UI_TIMEOUT_MS,
  });
  await page.locator('[data-knowledge-rag-action="filter-sources"][data-knowledge-rag-filter="all"]').click({ timeout: UI_TIMEOUT_MS });
}

async function waitForSourceRow(page, sourcePath) {
  const row = page.locator(`[data-knowledge-rag-source-row="true"][data-knowledge-rag-source-path="${sourcePath}"]`).first();
  await row.waitFor({ state: "visible", timeout: UI_TIMEOUT_MS });
  return row;
}

async function main() {
  fs.mkdirSync(OUTPUT_DIR, { recursive: true });
  fs.mkdirSync(path.join(ROOT_PATH, FIXTURE_DIR), { recursive: true });
  const marker = `SOURCE SCOPE RAG ${Date.now()}`;
  const sourceA = `${FIXTURE_DIR}/scope-alpha-${Date.now()}.md`;
  const sourceB = `${FIXTURE_DIR}/scope-beta-${Date.now()}.md`;
  fs.writeFileSync(path.join(ROOT_PATH, sourceA), `# Scope Alpha\n${marker}\nOnly alpha source should remain after scope filter.\n`, "utf8");
  fs.writeFileSync(path.join(ROOT_PATH, sourceB), `# Scope Beta\n${marker}\nBeta source must be filtered when sourcePaths targets alpha.\n`, "utf8");

  const browser = await chromium.launch({
    headless: true,
    ...(CHROMIUM_EXECUTABLE_PATH ? { executablePath: CHROMIUM_EXECUTABLE_PATH } : {}),
  });
  const context = await browser.newContext({ viewport: { width: 1360, height: 900 } });
  const page = await context.newPage();
  try {
    await signIn(context);
    await ingest(context, [sourceA, sourceB]);
    const indexedStatus = await waitForIndexed(context, [sourceA, sourceB]);

    const scoped = await query(context, marker, [sourceA]);
    const scopedReferences = Array.isArray(scoped.references) ? scoped.references : [];
    assert.equal(scoped.sourceScopeMode, "post_filter_mapped_references", `sourcePaths scope mode 应明确为 post-filter: ${JSON.stringify(scoped, null, 2).slice(0, 3000)}`);
    assert.equal(scoped.rawScopeFiltered, false, `rawScopeFiltered 应明确提示 provider raw 未被 sourcePaths 预过滤: ${JSON.stringify(scoped, null, 2).slice(0, 3000)}`);
    assert(scopedReferences.length > 0, `sourcePaths scope 应至少返回 alpha: ${JSON.stringify(scoped, null, 2).slice(0, 3000)}`);
    assert(
      scopedReferences.every((reference) => reference.sourceRootRelativePath === sourceA),
      `sourcePaths scope 不应返回非 alpha 来源: ${JSON.stringify(scopedReferences, null, 2).slice(0, 3000)}`,
    );

    await openKnowledgePanel(page);
    const row = await waitForSourceRow(page, sourceA);
    await row.locator('[data-knowledge-rag-action="reindex-source"]').waitFor({ state: "visible", timeout: UI_TIMEOUT_MS });
    const deleteButton = row.locator('[data-knowledge-rag-action="delete-source"]');
    await deleteButton.waitFor({ state: "visible", timeout: UI_TIMEOUT_MS });
    await deleteButton.click({ timeout: UI_TIMEOUT_MS });
    await page.waitForFunction(
      (expectedPath) => {
        const row = document.querySelector(`[data-knowledge-rag-source-row="true"][data-knowledge-rag-source-path="${expectedPath}"]`);
        const text = row ? row.textContent || "" : "";
        return text.includes("已删除") || text.includes("删除已提交") || text.includes("LightRAG 已移除");
      },
      sourceA,
      { timeout: UI_TIMEOUT_MS },
    );
    await page.screenshot({ path: SCREENSHOT_PATH, fullPage: true });
    assert(fs.existsSync(path.join(ROOT_PATH, sourceA)), "UI 删除索引不应删除原始 source 文件");

    const afterDelete = await query(context, marker, [sourceA]);
    const afterReferences = Array.isArray(afterDelete.references) ? afterDelete.references : [];
    assert.equal(afterReferences.length, 0, `删除索引后 source-scoped query 不应继续返回 alpha: ${JSON.stringify(afterReferences, null, 2)}`);

    const result = {
      ok: true,
      baseUrl: BASE_URL,
      rootUri: ROOT_URI,
      workspaceId: WORKSPACE_ID,
      marker,
      sourceA,
      sourceB,
      sourceScope: scoped.sourceScope,
      sourceScopeMode: scoped.sourceScopeMode,
      rawScopeFiltered: scoped.rawScopeFiltered,
      scopedReferenceCount: scopedReferences.length,
      alphaDocId: entryFor(indexedStatus, sourceA)?.lightRagDocId || null,
      betaDocId: entryFor(indexedStatus, sourceB)?.lightRagDocId || null,
      sourceAExistsAfterDelete: fs.existsSync(path.join(ROOT_PATH, sourceA)),
      afterDeleteReferenceCount: afterReferences.length,
      screenshot: SCREENSHOT_PATH,
    };
    fs.writeFileSync(RESULT_PATH, `${JSON.stringify(result, null, 2)}\n`, "utf8");
    console.log(JSON.stringify(result, null, 2));
  } finally {
    await browser.close().catch(() => undefined);
  }
}

main().catch((error) => {
  fs.mkdirSync(OUTPUT_DIR, { recursive: true });
  fs.writeFileSync(
    path.join(OUTPUT_DIR, "failure.json"),
    `${JSON.stringify({ ok: false, error: error.stack || error.message || String(error) }, null, 2)}\n`,
    "utf8",
  );
  console.error(error.stack || error.message || String(error));
  process.exit(1);
});