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

const assert = require("node:assert");
const fs = require("node:fs");
const path = require("node:path");
const { request } = 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 = process.env.MNOTE_TASK772_FIXTURE_DIR || "knowledge-rag-fixtures-7-68";
const OUTPUT_DIR = path.join(process.cwd(), "tmp", "task772-weknora-ingest-search-open-reference-e2e");
const RESULT_PATH = path.join(OUTPUT_DIR, "result.json");
const SKIP_PATH = path.join(OUTPUT_DIR, "skip.json");
const FAILURE_PATH = path.join(OUTPUT_DIR, "failure.json");
const UI_TIMEOUT_MS = Number(process.env.MNOTE_SMOKE_UI_TIMEOUT_MS || 30_000);
const POLL_TIMEOUT_MS = Number(process.env.MNOTE_TASK772_WEKNORA_TIMEOUT_MS || 240_000);
const POLL_INTERVAL_MS = Number(process.env.MNOTE_TASK772_WEKNORA_POLL_MS || 5_000);

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

function envList(name) {
  return String(process.env[name] || "")
    .split(",")
    .map((value) => value.trim())
    .filter(Boolean);
}

function configuredKnowledgeBaseIds() {
  return envList("MNOTE_WEKNORA_KNOWLEDGE_BASE_IDS").concat(envList("MNOTE_WEKNORA_KNOWLEDGE_BASE_ID"));
}

function hasWeKnoraApiKey() {
  return Boolean(String(process.env.MNOTE_WEKNORA_API_KEY || process.env.WEKNORA_API_KEY || "").trim());
}

function writeJson(filePath, payload) {
  fs.mkdirSync(OUTPUT_DIR, { recursive: true });
  fs.writeFileSync(filePath, `${JSON.stringify(payload, null, 2)}\n`, "utf8");
}

function skip(reason, details = {}) {
  const payload = {
    ok: false,
    skipped: true,
    reason,
    baseUrl: BASE_URL,
    rootUri: ROOT_URI,
    workspaceId: WORKSPACE_ID,
    ...details,
  };
  writeJson(SKIP_PATH, payload);
  console.log(JSON.stringify(payload, null, 2));
}

function failLayer(layer, message, details = {}) {
  const error = new Error(message);
  error.layer = layer;
  error.details = details;
  return error;
}

async function apiJson(context, method, url, data) {
  const response = await context.fetch(url, {
    method,
    data,
    headers: {
      "x-mnote-actor-id": "mnote-e2e",
      "x-mnote-actor-type": "user",
      "x-mnote-workspace-id": WORKSPACE_ID,
      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 signIn(context) {
  const response = await context.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",
        },
      },
    },
    timeout: UI_TIMEOUT_MS,
  });
  assert(response.ok(), `登录失败: ${response.status()} ${await response.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()}`);
  if (!result.ok) {
    throw failLayer("mnote_status", `knowledge-rag status 失败: ${result.status}`, {
      response: result.payload || result.text,
    });
  }
  return result.payload;
}

function assertWeKnoraStatus(statusPayload, expectedKbIds) {
  const activeProvider = statusPayload?.providerConfig?.active || statusPayload?.provider;
  assert.equal(activeProvider, "weknora", `MNote knowledge provider 不是 weknora: ${JSON.stringify(statusPayload?.providerConfig || statusPayload, null, 2)}`);
  const serverKbIds = statusPayload?.providerConfig?.weknora?.knowledgeBaseIds || [];
  assert(serverKbIds.length > 0, `MNote 3000 未加载 WeKnora KB id: ${JSON.stringify(statusPayload?.providerConfig || statusPayload, null, 2)}`);
  for (const kbId of expectedKbIds) {
    assert(serverKbIds.includes(kbId), `MNote 3000 未加载当前 WeKnora KB id ${kbId}: ${JSON.stringify(serverKbIds)}`);
  }
}

async function ingest(context, sourcePath) {
  const result = await apiJson(context, "POST", `${BASE_URL}/api/knowledge-rag/ingest`, {
    rootUri: ROOT_URI,
    workspaceId: WORKSPACE_ID,
    force: true,
    sources: [{ sourcePath }],
  });
  if (!result.ok) {
    throw failLayer("mnote_ingest_http", `knowledge-rag ingest HTTP 失败: ${result.status}`, {
      response: result.payload || result.text,
    });
  }
  const payload = result.payload;
  assert.equal(payload?.provider, "weknora", `ingest provider 应为 weknora: ${JSON.stringify(payload, null, 2).slice(0, 3000)}`);
  if (payload?.ok !== true || payload?.retryRequired) {
    throw failLayer("weknora_ingest_provider", "WeKnora ingest 未成功完成 provider upload", {
      response: payload,
    });
  }
  const configured = Array.isArray(payload.configuredSources) ? payload.configuredSources : [];
  const item = configured.find((source) => source.sourceRootRelativePath === sourcePath);
  assert(item, `ingest 结果缺少目标 source: ${JSON.stringify(configured, null, 2).slice(0, 3000)}`);
  assert.equal(item.provider, "weknora", `ingest source provider 应为 weknora: ${JSON.stringify(item, null, 2)}`);
  assert.equal(item.mappingStatus, "provider_mapped", `ingest 应写回 provider_mapped: ${JSON.stringify(item, null, 2)}`);
  assert(item.providerKnowledgeBaseId, `ingest 缺少 providerKnowledgeBaseId: ${JSON.stringify(item, null, 2)}`);
  assert(item.providerKnowledgeId, `ingest 缺少 providerKnowledgeId: ${JSON.stringify(item, null, 2)}`);
  assert(item.upload?.attempted === true, `ingest 应真实调用 WeKnora upload: ${JSON.stringify(item, null, 2)}`);
  return { payload, item };
}

async function search(context, query, sourcePath) {
  const result = await apiJson(context, "POST", `${BASE_URL}/api/knowledge-rag/search`, {
    rootUri: ROOT_URI,
    workspaceId: WORKSPACE_ID,
    query,
    mode: "hybrid",
    topK: 10,
    chunkTopK: 10,
    includeChunkContent: true,
    sourcePaths: [sourcePath],
  });
  if (!result.ok) {
    throw failLayer("mnote_search_http", `knowledge-rag search HTTP 失败: ${result.status}`, {
      response: result.payload || result.text,
    });
  }
  return result.payload;
}

function referenceProviderIds(reference) {
  return {
    knowledgeBaseId: reference?.providerIds?.knowledgeBaseId || reference?.providerKnowledgeBaseId || "",
    knowledgeId: reference?.providerIds?.knowledgeId || reference?.providerKnowledgeId || "",
    chunkId: reference?.providerIds?.chunkId || reference?.providerChunkId || reference?.chunkId || "",
  };
}

function findTargetReference(searchPayload, ingestItem, marker, sourcePath) {
  const references = Array.isArray(searchPayload?.references) ? searchPayload.references : [];
  return references.find((reference) => {
    const ids = referenceProviderIds(reference);
    const quote = `${reference.displayQuote || ""}\n${reference.rawQuote || ""}\n${reference.quote || ""}`;
    return reference.provider === "weknora"
      && ids.knowledgeId === ingestItem.providerKnowledgeId
      && (reference.sourceRootRelativePath === sourcePath || quote.includes(marker));
  }) || null;
}

async function waitForSearchHit(context, marker, sourcePath, ingestItem) {
  const startedAt = Date.now();
  let lastPayload = null;
  let lastError = null;
  while (Date.now() - startedAt < POLL_TIMEOUT_MS) {
    try {
      lastPayload = await search(context, marker, sourcePath);
      const reference = findTargetReference(lastPayload, ingestItem, marker, sourcePath);
      if (reference) return { payload: lastPayload, reference };
    } catch (error) {
      lastError = {
        layer: error.layer || "search_poll",
        message: error.message,
        details: error.details,
      };
    }
    await sleep(POLL_INTERVAL_MS);
  }
  throw failLayer("weknora_search_timeout", "等待 WeKnora search 返回目标 chunk 超时", {
    marker,
    sourcePath,
    providerKnowledgeId: ingestItem.providerKnowledgeId,
    lastError,
    lastPayload,
  });
}

function rawWeKnoraChunkFromReference(reference) {
  const raw = reference?.reference;
  assert(raw && typeof raw === "object" && !Array.isArray(raw), `search reference 缺少原始 WeKnora chunk: ${JSON.stringify(reference, null, 2).slice(0, 3000)}`);
  return { provider: "weknora", ...raw };
}

function assertMappedReference(reference, ingestItem, sourcePath, label) {
  assert.equal(reference?.provider, "weknora", `${label} provider 应为 weknora: ${JSON.stringify(reference, null, 2).slice(0, 3000)}`);
  const ids = referenceProviderIds(reference);
  assert(ids.knowledgeBaseId, `${label} 缺少 provider knowledgeBaseId: ${JSON.stringify(reference, null, 2).slice(0, 3000)}`);
  assert(ids.knowledgeId, `${label} 缺少 provider knowledgeId: ${JSON.stringify(reference, null, 2).slice(0, 3000)}`);
  assert(ids.chunkId, `${label} 缺少 provider chunkId: ${JSON.stringify(reference, null, 2).slice(0, 3000)}`);
  assert.equal(ids.knowledgeId, ingestItem.providerKnowledgeId, `${label} provider knowledgeId 未保留 ingest 映射: ${JSON.stringify(ids)}`);
  assert.equal(reference.filePath ?? null, null, `${label} 不应把 WeKnora provider filename 伪造成 filePath: ${JSON.stringify(reference, null, 2).slice(0, 3000)}`);
  assert.equal(reference.sourceRootRelativePath, sourcePath, `${label} 应通过 registry 映射回 sourceRootRelativePath: ${JSON.stringify(reference, null, 2).slice(0, 3000)}`);
  assert.equal(reference.citationDiagnostics?.providerFilenameIsNotLocalPath, true, `${label} 应声明 provider filename 不是本地路径真相: ${JSON.stringify(reference.citationDiagnostics, null, 2)}`);
  assert.equal(reference.openAction?.params?.path, sourcePath, `${label} openAction 应使用 registry path，不使用 provider filename: ${JSON.stringify(reference.openAction, null, 2)}`);
}

async function openReference(context, rawChunk) {
  const result = await apiJson(context, "POST", `${BASE_URL}/api/knowledge-rag/open-reference`, {
    rootUri: ROOT_URI,
    workspaceId: WORKSPACE_ID,
    reference: rawChunk,
  });
  if (!result.ok) {
    throw failLayer("mnote_open_reference_http", `knowledge-rag open-reference HTTP 失败: ${result.status}`, {
      response: result.payload || result.text,
    });
  }
  const payload = result.payload;
  assert.equal(payload?.ok, true, `open-reference ok 应为 true: ${JSON.stringify(payload, null, 2).slice(0, 3000)}`);
  assert.equal(payload?.provider, "weknora", `open-reference provider 应为 weknora: ${JSON.stringify(payload, null, 2).slice(0, 3000)}`);
  return payload;
}

async function main() {
  const expectedKbIds = configuredKnowledgeBaseIds();
  if (expectedKbIds.length === 0 || !hasWeKnoraApiKey()) {
    console.warn(JSON.stringify({
      warning: "local_weknora_env_not_visible",
      message: "当前 smoke shell 未看到 WeKnora env；继续以 MNote 3000 status 和真实 API 调用为准。",
      requiredAny: {
        knowledgeBaseId: ["MNOTE_WEKNORA_KNOWLEDGE_BASE_ID", "MNOTE_WEKNORA_KNOWLEDGE_BASE_IDS"],
        apiKey: ["MNOTE_WEKNORA_API_KEY", "WEKNORA_API_KEY"],
      },
      hasKnowledgeBaseId: expectedKbIds.length > 0,
      hasApiKey: hasWeKnoraApiKey(),
    }, null, 2));
  }

  if (!fs.existsSync(ROOT_PATH)) {
    throw failLayer("allowed_root_missing", `allowed root 不存在: ${ROOT_PATH}`);
  }

  const context = await request.newContext({ baseURL: BASE_URL });
  try {
    await signIn(context);
    const statusPayload = await status(context);
    try {
      assertWeKnoraStatus(statusPayload, expectedKbIds);
    } catch (error) {
      skip("mnote_weknora_provider_or_kb_not_configured", {
        assertion: error.message,
        providerConfig: statusPayload?.providerConfig || null,
        health: statusPayload?.health || null,
      });
      return;
    }

    const startedAt = Date.now();
    const marker = `task772 weknora e2e marker ${startedAt}`;
    const sourceName = `task772-weknora-e2e-${startedAt}.md`;
    const sourcePath = `${FIXTURE_DIR}/${sourceName}`;
    const absoluteSourcePath = path.join(ROOT_PATH, sourcePath);
    fs.mkdirSync(path.dirname(absoluteSourcePath), { recursive: true });
    fs.writeFileSync(
      absoluteSourcePath,
      [
        "# Task 772 WeKnora E2E",
        "",
        marker,
        "",
        "This markdown file is created by the MNote task772 smoke to verify real WeKnora ingest, search, and open-reference mapping.",
        "The provider filename must not become a forged local file path; MNote should map back through its source registry.",
        "",
      ].join("\n"),
      "utf8",
    );

    const ingestResult = await ingest(context, sourcePath);
    const searchResult = await waitForSearchHit(context, marker, sourcePath, ingestResult.item);
    assert.equal(searchResult.payload?.provider, "weknora", `search provider 应为 weknora: ${JSON.stringify(searchResult.payload, null, 2).slice(0, 3000)}`);
    assertMappedReference(searchResult.reference, ingestResult.item, sourcePath, "search reference");

    const rawChunk = rawWeKnoraChunkFromReference(searchResult.reference);
    const openPayload = await openReference(context, rawChunk);
    assertMappedReference(openPayload.reference, ingestResult.item, sourcePath, "open-reference");

    const result = {
      ok: true,
      skipped: false,
      baseUrl: BASE_URL,
      rootUri: ROOT_URI,
      workspaceId: WORKSPACE_ID,
      sourcePath,
      absoluteSourcePath,
      marker,
      provider: "weknora",
      providerKnowledgeBaseId: ingestResult.item.providerKnowledgeBaseId,
      providerKnowledgeId: ingestResult.item.providerKnowledgeId,
      search: {
        resultCount: Array.isArray(searchResult.payload.results) ? searchResult.payload.results.length : 0,
        referenceCount: Array.isArray(searchResult.payload.references) ? searchResult.payload.references.length : 0,
        providerIds: referenceProviderIds(searchResult.reference),
        citationUrl: searchResult.reference.citationUrl || null,
        filePath: searchResult.reference.filePath ?? null,
        sourceRootRelativePath: searchResult.reference.sourceRootRelativePath || null,
      },
      openReference: {
        providerIds: referenceProviderIds(openPayload.reference),
        citationUrl: openPayload.reference?.citationUrl || null,
        filePath: openPayload.reference?.filePath ?? null,
        sourceRootRelativePath: openPayload.reference?.sourceRootRelativePath || null,
        openAction: openPayload.reference?.openAction || null,
      },
    };
    writeJson(RESULT_PATH, result);
    console.log(JSON.stringify(result, null, 2));
  } finally {
    await context.dispose().catch(() => undefined);
  }
}

main().catch((error) => {
  const payload = {
    ok: false,
    skipped: false,
    layer: error.layer || "unexpected",
    error: error.stack || error.message || String(error),
    details: error.details || null,
    baseUrl: BASE_URL,
    rootUri: ROOT_URI,
    workspaceId: WORKSPACE_ID,
  };
  writeJson(FAILURE_PATH, payload);
  console.error(JSON.stringify(payload, null, 2));
  process.exit(1);
});