/**
 * Stop pipeline from overwriting bodyText with HTML-normalized / OCR-merged text.
 * Parse still uses a local normalized body; OCR stays in ocrText only.
 */
import fs from "fs";

const path = "src/services/parse/pipeline.ts";
let src = fs.readFileSync(path, "utf8");

const oldNorm = `    const subject = mail.subject?.trim() ? mail.subject : "(无主�?";
    // 历史库可能存了原�?HTML；解析前先归一成纯文本
    let body = plainTextFromMaybeHtml(mail.bodyText || "");
    if (body && body !== (mail.bodyText || "").trim()) {
      await prisma.mailMessage.update({
        where: { id: mailId },
        data: { bodyText: body },
      });
    }`;

const neuNorm = `    const subject = mail.subject?.trim() ? mail.subject : "(无主�?";
    // 解析用归一化正文；绝不回写 bodyText（排查用原文一字不落）
    const bodyStored = mail.bodyText || "";
    let body = plainTextFromMaybeHtml(bodyStored) || bodyStored;`;

if (!src.includes(oldNorm)) {
  const oldCrlf = oldNorm.replace(/\n/g, "\r\n");
  if (!src.includes(oldCrlf)) {
    console.error("norm block missing");
    process.exit(1);
  }
  src = src.replace(oldCrlf, neuNorm.replace(/\n/g, "\r\n"));
} else {
  src = src.replace(oldNorm, neuNorm);
}

const oldOcr = `          body = body.trim()
            ? \`\${body}\\n\\n\${ocr.text}\`
            : ocr.text;
          await prisma.mailMessage.update({
            where: { id: mailId },
            data: { ocrText: ocr.text, bodyText: body },
          });`;

const neuOcr = `          // OCR 只写�?ocrText，不污染 bodyText
          if (!body.trim()) body = ocr.text;
          else body = \`\${body}\\n\\n\${ocr.text}\`;
          await prisma.mailMessage.update({
            where: { id: mailId },
            data: { ocrText: ocr.text },
          });`;

if (!src.includes("ocrText: ocr.text, bodyText: body")) {
  // try already patched
  if (!src.includes("OCR 只写�?ocrText")) {
    console.error("ocr block missing", src.includes("bodyText: body"));
    process.exit(1);
  }
} else {
  src = src.replace(
    /body = body\.trim\(\)\s*\?\s*`\$\{body\}\\n\\n\$\{ocr\.text\}`\s*:\s*ocr\.text;\s*await prisma\.mailMessage\.update\(\{\s*where: \{ id: mailId \},\s*data: \{ ocrText: ocr\.text, bodyText: body \},\s*\}\);/s,
    `// OCR only in ocrText �?never overwrite bodyText
          if (!body.trim()) body = ocr.text;
          else body = \`\${body}\\n\\n\${ocr.text}\`;
          await prisma.mailMessage.update({
            where: { id: mailId },
            data: { ocrText: ocr.text },
          });`,
  );
}

fs.writeFileSync(path, src);
console.log("pipeline body preserve ok", {
  hasStored: src.includes("bodyStored"),
  ocrOnly: src.includes("ocrText: ocr.text }") || src.includes("data: { ocrText: ocr.text }"),
});