import {
  logger
} from "./chunk-47DJ6YUB.js";
import {
  getTempDir
} from "./chunk-FTVFWJFJ.js";
import {
  InternalError,
  ValidationError,
  resolveNotebookPath
} from "./chunk-ER4KPD22.js";
import {
  NOTEBOOK_ROOT,
  PROJECT_ROOT,
  TEMP_ROOT,
  asyncHandler,
  createApiModule,
  defineApiModule,
  successResponse
} from "./chunk-74TMTGBG.js";

// api/modules/document-parser/index.ts
import express3 from "express";

// shared/modules/document-parser/index.ts
var DOCUMENT_PARSER_MODULE = defineApiModule({
  id: "document-parser",
  name: "Document Parser",
  basePath: "/document-parser",
  order: 60,
  version: "1.0.0",
  frontend: {
    enabled: false
  },
  backend: {
    enabled: true
  }
});

// api/modules/document-parser/blogRoutes.ts
import express from "express";
import path3 from "path";
import fs3 from "fs/promises";
import { existsSync as existsSync2 } from "fs";
import axios from "axios";

// api/utils/file.ts
import fs from "fs/promises";
import path from "path";
var getUniqueFilename = async (imagesDirFullPath, baseName, ext) => {
  const maxAttempts = 1e3;
  for (let i = 0; i < maxAttempts; i++) {
    const suffix = i === 0 ? "" : `-${i + 1}`;
    const filename = `${baseName}${suffix}${ext}`;
    const fullPath = path.join(imagesDirFullPath, filename);
    try {
      await fs.access(fullPath);
    } catch {
      return filename;
    }
  }
  throw new InternalError("Failed to generate unique filename");
};
var mimeToExt = {
  "image/png": ".png",
  "image/jpeg": ".jpg",
  "image/jpg": ".jpg",
  "image/gif": ".gif",
  "image/webp": ".webp"
};
var IMAGE_MAGIC_BYTES = {
  "image/png": { bytes: [137, 80, 78, 71, 13, 10, 26, 10] },
  "image/jpeg": { bytes: [255, 216, 255] },
  "image/gif": { bytes: [71, 73, 70, 56] },
  "image/webp": { bytes: [82, 73, 70, 70], offset: 0 }
};
var WEBP_WEBP_MARKER = [87, 69, 66, 80];
var MIN_IMAGE_SIZE = 16;
var MAX_IMAGE_SIZE = 8 * 1024 * 1024;
var validateImageBuffer = (buffer, claimedMimeType) => {
  if (buffer.byteLength < MIN_IMAGE_SIZE) {
    throw new ValidationError("Image file is too small or corrupted");
  }
  if (buffer.byteLength > MAX_IMAGE_SIZE) {
    throw new ValidationError("Image file is too large");
  }
  const magicInfo = IMAGE_MAGIC_BYTES[claimedMimeType];
  if (!magicInfo) {
    throw new ValidationError("Unsupported image type for content validation");
  }
  const offset = magicInfo.offset || 0;
  const expectedBytes = magicInfo.bytes;
  for (let i = 0; i < expectedBytes.length; i++) {
    if (buffer[offset + i] !== expectedBytes[i]) {
      throw new ValidationError("Image content does not match the claimed file type");
    }
  }
  if (claimedMimeType === "image/webp") {
    if (buffer.byteLength < 12) {
      throw new ValidationError("WebP image is corrupted");
    }
    for (let i = 0; i < WEBP_WEBP_MARKER.length; i++) {
      if (buffer[8 + i] !== WEBP_WEBP_MARKER[i]) {
        throw new ValidationError("WebP image content is invalid");
      }
    }
  }
};
var detectImageMimeType = (buffer) => {
  if (buffer.byteLength < 8) return null;
  if (buffer[0] === 137 && buffer[1] === 80 && buffer[2] === 78 && buffer[3] === 71 && buffer[4] === 13 && buffer[5] === 10 && buffer[6] === 26 && buffer[7] === 10) {
    return "image/png";
  }
  if (buffer[0] === 255 && buffer[1] === 216 && buffer[2] === 255) {
    return "image/jpeg";
  }
  if (buffer[0] === 71 && buffer[1] === 73 && buffer[2] === 70 && buffer[3] === 56) {
    return "image/gif";
  }
  if (buffer[0] === 82 && buffer[1] === 73 && buffer[2] === 70 && buffer[3] === 70 && buffer[8] === 87 && buffer[9] === 69 && buffer[10] === 66 && buffer[11] === 80) {
    return "image/webp";
  }
  return null;
};

// shared/utils/date.ts
var pad2 = (n) => String(n).padStart(2, "0");
var pad3 = (n) => String(n).padStart(3, "0");
var formatTimestamp = (d) => {
  const yyyy = d.getFullYear();
  const mm = pad2(d.getMonth() + 1);
  const dd = pad2(d.getDate());
  const hh = pad2(d.getHours());
  const mi = pad2(d.getMinutes());
  const ss = pad2(d.getSeconds());
  const ms = pad3(d.getMilliseconds());
  return `${yyyy}${mm}${dd}_${hh}${mi}${ss}_${ms}`;
};

// api/modules/document-parser/documentParser.ts
import path2 from "path";
import { spawn } from "child_process";
import fs2 from "fs/promises";
import { existsSync, mkdirSync } from "fs";
if (!existsSync(TEMP_ROOT)) {
  mkdirSync(TEMP_ROOT, { recursive: true });
}
var createJobContext = async (prefix) => {
  const now = /* @__PURE__ */ new Date();
  const jobDir = path2.join(TEMP_ROOT, `${prefix}_${formatTimestamp(now)}`);
  await fs2.mkdir(jobDir, { recursive: true });
  const year = now.getFullYear();
  const month = pad2(now.getMonth() + 1);
  const day = pad2(now.getDate());
  const imagesSubDir = `images/${year}/${month}/${day}`;
  const destImagesDir = path2.join(NOTEBOOK_ROOT, imagesSubDir);
  await fs2.mkdir(destImagesDir, { recursive: true });
  return { jobDir, now, imagesSubDir, destImagesDir };
};
var spawnPythonScript = async (options) => {
  const { scriptPath, args, cwd, inputContent } = options;
  return new Promise((resolve, reject) => {
    const pythonProcess = spawn("python", ["-X", "utf8", scriptPath, ...args], {
      cwd,
      env: { ...process.env, PYTHONIOENCODING: "utf-8", PYTHONUTF8: "1" }
    });
    let stdout = "";
    let stderr = "";
    pythonProcess.stdout.on("data", (data) => {
      stdout += data.toString();
    });
    pythonProcess.stderr.on("data", (data) => {
      stderr += data.toString();
    });
    pythonProcess.on("close", (code) => {
      if (code !== 0) {
        logger.error("Python script error:", stderr);
        reject(new Error(`Process exited with code ${code}. Error: ${stderr}`));
      } else {
        resolve(stdout);
      }
    });
    pythonProcess.on("error", (err) => {
      reject(err);
    });
    if (inputContent !== void 0) {
      pythonProcess.stdin.write(inputContent);
      pythonProcess.stdin.end();
    }
  });
};
var findImageDestinations = (md) => {
  const results = [];
  let i = 0;
  while (i < md.length) {
    const bang = md.indexOf("![", i);
    if (bang === -1) break;
    const closeBracket = md.indexOf("]", bang + 2);
    if (closeBracket === -1) break;
    if (md[closeBracket + 1] !== "(") {
      i = closeBracket + 1;
      continue;
    }
    const urlStart = closeBracket + 2;
    let depth = 1;
    let j = urlStart;
    for (; j < md.length; j++) {
      const ch = md[j];
      if (ch === "(") depth++;
      else if (ch === ")") {
        depth--;
        if (depth === 0) break;
      }
    }
    if (depth !== 0) break;
    results.push({ url: md.slice(urlStart, j), start: urlStart, end: j });
    i = j + 1;
  }
  return results;
};
var applyReplacements = (md, replacements) => {
  const sorted = [...replacements].sort((a, b) => b.start - a.start);
  let result = md;
  for (const r of sorted) {
    result = `${result.slice(0, r.start)}${r.replacement}${result.slice(r.end)}`;
  }
  return result;
};
var copyLocalImage = async (src, jobDir, htmlDir, destImagesDir, imagesSubDir, now) => {
  const s0 = src.trim().replace(/^<|>$/g, "");
  if (!s0) return null;
  let decoded = s0;
  try {
    decoded = decodeURI(s0);
  } catch {
  }
  const s1 = decoded.replace(/\\/g, "/");
  const s2 = s1.startsWith("./") ? s1.slice(2) : s1;
  const candidates = s2.startsWith("/") ? [path2.join(jobDir, s2.slice(1)), path2.join(htmlDir, s2.slice(1))] : [path2.resolve(htmlDir, s2), path2.resolve(jobDir, s2)];
  let foundFile = null;
  for (const c of candidates) {
    if (existsSync(c)) {
      foundFile = c;
      break;
    }
  }
  if (!foundFile) return null;
  const ext = path2.extname(foundFile) || ".jpg";
  const baseName = formatTimestamp(now);
  const newFilename = await getUniqueFilename(destImagesDir, baseName, ext);
  const newPath = path2.join(destImagesDir, newFilename);
  await fs2.copyFile(foundFile, newPath);
  return { newLink: `/${imagesSubDir}/${newFilename}` };
};
var cleanupJob = async (jobDir, additionalPaths = []) => {
  await fs2.rm(jobDir, { recursive: true, force: true }).catch(() => {
  });
  for (const p of additionalPaths) {
    await fs2.unlink(p).catch(() => {
    });
  }
};
var getScriptPath = (toolName, scriptName) => {
  return path2.join(PROJECT_ROOT, "tools", toolName, scriptName);
};
var ensureScriptExists = (scriptPath) => {
  return existsSync(scriptPath);
};

// api/modules/document-parser/blogRoutes.ts
var router = express.Router();
var tempDir = getTempDir();
router.post(
  "/parse-local",
  asyncHandler(async (req, res) => {
    const { htmlPath, htmlDir, assetsDirName, assetsFiles, targetPath } = req.body;
    if (!htmlPath || !htmlDir || !targetPath) {
      throw new ValidationError("htmlPath, htmlDir and targetPath are required");
    }
    let fullTargetPath;
    try {
      const resolved = resolveNotebookPath(targetPath);
      fullTargetPath = resolved.fullPath;
    } catch (error) {
      throw error;
    }
    const scriptPath = getScriptPath("blog", "parse_blog.py");
    if (!ensureScriptExists(scriptPath)) {
      throw new InternalError("Parser script not found");
    }
    const jobContext = await createJobContext("blog");
    let htmlPathInJob = "";
    try {
      htmlPathInJob = path3.join(jobContext.jobDir, "input.html");
      await fs3.copyFile(htmlPath, htmlPathInJob);
      if (assetsDirName && assetsFiles && assetsFiles.length > 0) {
        const assetsDirPath = path3.join(htmlDir, assetsDirName);
        for (const relPath of assetsFiles) {
          const srcPath = path3.join(assetsDirPath, relPath);
          if (existsSync2(srcPath)) {
            const destPath = path3.join(jobContext.jobDir, assetsDirName, relPath);
            await fs3.mkdir(path3.dirname(destPath), { recursive: true });
            await fs3.copyFile(srcPath, destPath);
          }
        }
      }
    } catch (err) {
      await cleanupJob(jobContext.jobDir);
      throw err;
    }
    processHtmlInBackground({
      jobDir: jobContext.jobDir,
      htmlPath: htmlPathInJob,
      targetPath: fullTargetPath,
      cwd: path3.dirname(scriptPath),
      jobContext,
      originalHtmlDir: htmlDir,
      originalAssetsDirName: assetsDirName
    }).catch((err) => {
      logger.error("Background HTML processing failed:", err);
      fs3.writeFile(fullTargetPath, `# \u89E3\u6790\u5931\u8D25

> \u9519\u8BEF\u4FE1\u606F: ${err.message}`, "utf-8").catch(() => {
      });
      cleanupJob(jobContext.jobDir).catch(() => {
      });
    });
    successResponse(res, {
      message: "HTML parsing started in background.",
      status: "processing"
    });
  })
);
async function processHtmlInBackground(args) {
  const { jobDir, htmlPath, targetPath, cwd, jobContext, originalHtmlDir, originalAssetsDirName } = args;
  try {
    await spawnPythonScript({
      scriptPath: "parse_blog.py",
      args: [htmlPath],
      cwd
    });
    const parsedPathObj = path3.parse(htmlPath);
    const markdownPath = path3.join(parsedPathObj.dir, `${parsedPathObj.name}.md`);
    if (!existsSync2(markdownPath)) {
      throw new Error("Markdown result file not found");
    }
    let mdContent = await fs3.readFile(markdownPath, "utf-8");
    const ctx = await jobContext;
    const htmlDir = path3.dirname(htmlPath);
    const replacements = [];
    const destinations = findImageDestinations(mdContent);
    for (const dest of destinations) {
      const originalSrc = dest.url;
      if (!originalSrc) continue;
      if (originalSrc.startsWith("http://") || originalSrc.startsWith("https://")) {
        try {
          const response = await axios.get(originalSrc, { responseType: "arraybuffer", timeout: 1e4 });
          const contentType = response.headers["content-type"];
          let ext = ".jpg";
          if (contentType) {
            if (contentType.includes("png")) ext = ".png";
            else if (contentType.includes("gif")) ext = ".gif";
            else if (contentType.includes("webp")) ext = ".webp";
            else if (contentType.includes("svg")) ext = ".svg";
            else if (contentType.includes("jpeg") || contentType.includes("jpg")) ext = ".jpg";
          }
          const urlExt = path3.extname(originalSrc.split("?")[0]);
          if (urlExt) ext = urlExt;
          const baseName = formatTimestamp(ctx.now);
          const newFilename = await getUniqueFilename(ctx.destImagesDir, baseName, ext);
          const newPath = path3.join(ctx.destImagesDir, newFilename);
          await fs3.writeFile(newPath, response.data);
          replacements.push({
            start: dest.start,
            end: dest.end,
            original: originalSrc,
            replacement: `/${ctx.imagesSubDir}/${newFilename}`
          });
        } catch {
        }
        continue;
      }
      if (originalSrc.startsWith("data:")) continue;
      let result = await copyLocalImage(
        originalSrc,
        jobDir,
        htmlDir,
        ctx.destImagesDir,
        ctx.imagesSubDir,
        ctx.now
      );
      if (!result && originalHtmlDir && originalAssetsDirName) {
        const srcWithFiles = originalSrc.replace(/^\.\//, "").replace(/^\//, "");
        const possiblePaths = [
          path3.join(originalHtmlDir, originalAssetsDirName, srcWithFiles),
          path3.join(originalHtmlDir, originalAssetsDirName, path3.basename(srcWithFiles))
        ];
        for (const p of possiblePaths) {
          if (existsSync2(p)) {
            const ext = path3.extname(p) || ".jpg";
            const baseName = formatTimestamp(ctx.now);
            const newFilename = await getUniqueFilename(ctx.destImagesDir, baseName, ext);
            const newPath = path3.join(ctx.destImagesDir, newFilename);
            await fs3.copyFile(p, newPath);
            result = { newLink: `/${ctx.imagesSubDir}/${newFilename}` };
            break;
          }
        }
      }
      if (result) {
        replacements.push({
          start: dest.start,
          end: dest.end,
          original: originalSrc,
          replacement: result.newLink
        });
      }
    }
    mdContent = applyReplacements(mdContent, replacements);
    await fs3.writeFile(targetPath, mdContent, "utf-8");
    await fs3.unlink(markdownPath).catch(() => {
    });
  } finally {
    await cleanupJob(jobDir);
  }
}
var blogRoutes_default = router;

// api/modules/document-parser/mineruRoutes.ts
import express2 from "express";
import multer from "multer";
import path4 from "path";
import fs4 from "fs/promises";
import { existsSync as existsSync3 } from "fs";
var router2 = express2.Router();
var tempDir2 = getTempDir();
var upload = multer({
  dest: tempDir2,
  limits: {
    fileSize: 50 * 1024 * 1024
  }
});
router2.post(
  "/parse",
  upload.single("file"),
  asyncHandler(async (req, res) => {
    if (!req.file) {
      throw new ValidationError("File is required");
    }
    const { targetPath } = req.body;
    if (!targetPath) {
      await fs4.unlink(req.file.path).catch(() => {
      });
      throw new ValidationError("Target path is required");
    }
    let fullTargetPath;
    try {
      const resolved = resolveNotebookPath(targetPath);
      fullTargetPath = resolved.fullPath;
    } catch (error) {
      await fs4.unlink(req.file.path).catch(() => {
      });
      throw error;
    }
    const scriptPath = getScriptPath("mineru", "mineru_parser.py");
    if (!ensureScriptExists(scriptPath)) {
      await fs4.unlink(req.file.path).catch(() => {
      });
      throw new InternalError("Parser script not found");
    }
    processPdfInBackground(req.file.path, fullTargetPath, path4.dirname(scriptPath)).catch((err) => {
      logger.error("Background PDF processing failed:", err);
      fs4.writeFile(fullTargetPath, `# \u89E3\u6790\u5931\u8D25

> \u9519\u8BEF\u4FE1\u606F: ${err.message}`, "utf-8").catch(() => {
      });
    });
    successResponse(res, {
      message: "PDF upload successful. Parsing started in background.",
      status: "processing"
    });
  })
);
async function processPdfInBackground(filePath, targetPath, cwd) {
  try {
    const output = await spawnPythonScript({
      scriptPath: "mineru_parser.py",
      args: [filePath],
      cwd
    });
    const match = output.match(/JSON_RESULT:(.*)/);
    if (!match) {
      throw new Error("Failed to parse Python script output: JSON_RESULT not found");
    }
    const result = JSON.parse(match[1]);
    const markdownPath = result.markdown_file;
    const outputDir = result.output_dir;
    if (!existsSync3(markdownPath)) {
      throw new Error("Markdown result file not found");
    }
    let mdContent = await fs4.readFile(markdownPath, "utf-8");
    const imagesDir = path4.join(outputDir, "images");
    if (existsSync3(imagesDir)) {
      const jobContext = await createJobContext("pdf_images");
      const destinations = findImageDestinations(mdContent);
      const replacements = [];
      for (const dest of destinations) {
        const originalSrc = dest.url;
        if (!originalSrc) continue;
        const possibleFilenames = [originalSrc, path4.basename(originalSrc)];
        let foundFile = null;
        for (const fname of possibleFilenames) {
          const localPath = path4.join(imagesDir, fname);
          if (existsSync3(localPath)) {
            foundFile = localPath;
            break;
          }
          const directPath = path4.join(outputDir, originalSrc);
          if (existsSync3(directPath)) {
            foundFile = directPath;
            break;
          }
        }
        if (foundFile) {
          const ext = path4.extname(foundFile);
          const baseName = formatTimestamp(jobContext.now);
          const newFilename = await getUniqueFilename(jobContext.destImagesDir, baseName, ext);
          const newPath = path4.join(jobContext.destImagesDir, newFilename);
          await fs4.copyFile(foundFile, newPath);
          replacements.push({
            start: dest.start,
            end: dest.end,
            original: originalSrc,
            replacement: `${jobContext.imagesSubDir}/${newFilename}`
          });
        }
      }
      mdContent = applyReplacements(mdContent, replacements);
    }
    await fs4.writeFile(targetPath, mdContent, "utf-8");
    await fs4.unlink(markdownPath).catch(() => {
    });
    if (outputDir && outputDir.includes("temp")) {
      await fs4.rm(outputDir, { recursive: true, force: true }).catch(() => {
      });
    }
  } finally {
    await fs4.unlink(filePath).catch(() => {
    });
  }
}
var mineruRoutes_default = router2;

// api/modules/document-parser/index.ts
var createDocumentParserModule = () => {
  return createApiModule(DOCUMENT_PARSER_MODULE, {
    routes: (_container) => {
      const router3 = express3.Router();
      router3.use("/blog", blogRoutes_default);
      router3.use("/mineru", mineruRoutes_default);
      return router3;
    }
  });
};
var document_parser_default = createDocumentParserModule;

export {
  pad2,
  formatTimestamp,
  getUniqueFilename,
  mimeToExt,
  validateImageBuffer,
  detectImageMimeType,
  createJobContext,
  spawnPythonScript,
  findImageDestinations,
  applyReplacements,
  copyLocalImage,
  cleanupJob,
  getScriptPath,
  ensureScriptExists,
  blogRoutes_default,
  mineruRoutes_default,
  createDocumentParserModule,
  document_parser_default
};