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main.ts

@@ -19,12 +19,6 @@ import STYLES_CSS from "./web/styles.css" with { type: "text" };
 import SAMPLE_DOCUMENTS from "./sample-data/buyers_vision_anonymous.json" with {
   type: "json",
 };
-import PDFJS_LIB_TEXT from "pdfjs-dist/legacy/build/pdf.min.mjs" with {
-  type: "text",
-};
-import PDFJS_WORKER_TEXT from "pdfjs-dist/legacy/build/pdf.worker.min.mjs" with {
-  type: "text",
-};
 
 const PREFIX = "[BizMatch QC]";
 
@@ -354,6 +348,30 @@ Deno.serve(async (request) => {
     }
   }
 
+  // ---- Client-side log forwarding ----
+  if (url.pathname === "/api/client-log" && request.method === "POST") {
+    try {
+      const body = await request.json() as {
+        level?: string;
+        message?: string;
+        data?: unknown;
+      };
+      const level = body.level || "info";
+      const prefix = `${PREFIX} Client`;
+      if (level === "error") {
+        console.error(
+          `${prefix} [ERROR] ${body.message || ""}`,
+          body.data || "",
+        );
+      } else if (level === "warn") {
+        console.warn(`${prefix} [WARN] ${body.message || ""}`, body.data || "");
+      } else {
+        console.log(`${prefix} ${body.message || ""}`, body.data || "");
+      }
+    } catch { /* ignore */ }
+    return new Response(null, { status: 204 });
+  }
+
   // ---- PDF prepare endpoint ----
   if (url.pathname === "/api/pdf/prepare" && request.method === "POST") {
     try {
@@ -374,9 +392,29 @@ Deno.serve(async (request) => {
 
       const startTime = performance.now();
       const cacheResult = await cacheOrGetPdf(sourcePath);
+
+      // Validate cached file
       let fileSize: number;
       try {
         fileSize = (await Deno.stat(cacheResult.path)).size;
+        const f = await Deno.open(cacheResult.path, { read: true });
+        const head = new Uint8Array(5);
+        let n = 0;
+        while (n < 5) {
+          const r = await f.read(head.subarray(n));
+          if (r === null) break;
+          n += r;
+        }
+        f.close();
+        const header = new TextDecoder().decode(head.slice(0, n));
+        if (header !== "%PDF-") {
+          console.warn(
+            `${PREFIX} Cached PDF invalid header: "${header}", re-caching`,
+          );
+          await Deno.remove(cacheResult.path).catch(() => {});
+          const fresh = await cacheOrGetPdf(sourcePath);
+          fileSize = (await Deno.stat(fresh.path)).size;
+        }
       } catch {
         throw new Error("Cached file is not readable.");
       }
@@ -452,25 +490,6 @@ Deno.serve(async (request) => {
     });
   }
 
-  // ---- PDF.js library assets ----
-  if (url.pathname === "/pdfjs/legacy/pdf.min.mjs") {
-    return new Response(PDFJS_LIB_TEXT, {
-      headers: {
-        "content-type": "text/javascript; charset=utf-8",
-        "cache-control": "public, max-age=86400",
-      },
-    });
-  }
-
-  if (url.pathname === "/pdfjs/legacy/pdf.worker.min.mjs") {
-    return new Response(PDFJS_WORKER_TEXT, {
-      headers: {
-        "content-type": "text/javascript; charset=utf-8",
-        "cache-control": "public, max-age=86400",
-      },
-    });
-  }
-
   // ---- Static files ----
   const staticFiles: Record<string, { body: string; type: string }> = {
     "/": { body: INDEX_HTML, type: "text/html; charset=utf-8" },
@@ -503,7 +522,6 @@ console.log(
   }`,
 );
 console.log(`${PREFIX} Documents loaded: ${documents.length}`);
-console.log(`${PREFIX} PDF.js version: 6.1.200`);
 if (loadError) console.error(`${PREFIX} ${loadError}`);
 
 // ------- Window management -------