/* eslint-disable */
import * as React from "react";
import { Document, Page, Image, pdf } from "@react-pdf/renderer";
import fs from "fs";

async function main() {
  // Read a real JPEG from disk
  const buf = fs.readFileSync("/tmp/debug-logo.bin");
  console.log("Input bytes:", buf.length, "first 4:", buf.slice(0, 4).toString("hex"));

  // Test 1: direct Buffer
  console.log("\n=== Test 1: Buffer src ===");
  const inst1 = pdf(
    <Document><Page size="A4" style={{padding: 40}}>
      <Image src={buf} style={{ width: 110, height: 68 }} />
    </Page></Document>
  );
  const out1 = Buffer.from(await inst1.toString(), "binary");
  console.log("  size:", out1.length, "first bytes:", out1.subarray(0, 8).toString("hex"));
  checkImage(out1, "buf");

  // Test 2: data URI
  console.log("\n=== Test 2: data URI src ===");
  const dataUri = `data:image/jpeg;base64,${buf.toString("base64")}`;
  const inst2 = pdf(
    <Document><Page size="A4" style={{padding: 40}}>
      <Image src={dataUri} style={{ width: 110, height: 68 }} />
    </Page></Document>
  );
  const out2 = Buffer.from(await inst2.toString(), "binary");
  console.log("  size:", out2.length);
  checkImage(out2, "datauri");

  // Test 3: URL
  console.log("\n=== Test 3: URL src ===");
  const url = "https://pocketbase-gnqc88suy8fqk6wyryjjdpvl.169.239.180.130.sslip.io/api/files/pbc_1010367695/851t7163ks1f9qk/1u8lvckq51g_my2g8gttaf.jpg";
  const inst3 = pdf(
    <Document><Page size="A4" style={{padding: 40}}>
      <Image src={url} style={{ width: 110, height: 68 }} />
    </Page></Document>
  );
  const out3 = Buffer.from(await inst3.toString(), "binary");
  console.log("  size:", out3.length);
  checkImage(out3, "url");
}

function checkImage(pdfBuf: Buffer, label: string) {
  // Find the JPEG stream inside the PDF
  const dctIdx = pdfBuf.indexOf("/DCTDecode");
  if (dctIdx < 0) {
    console.log(`  [${label}] no DCTDecode (JPEG) stream found`);
    return;
  }
  // Find the stream that follows
  const streamStart = pdfBuf.indexOf(Buffer.from("stream\n"), dctIdx);
  if (streamStart < 0) {
    console.log(`  [${label}] no stream after DCTDecode`);
    return;
  }
  const head = pdfBuf.subarray(streamStart + 7, streamStart + 20);
  console.log(`  [${label}] JPEG stream head: ${head.toString("hex")}`);
  console.log(`  [${label}] first 2 bytes valid JPEG SOI? ${head[0] === 0xff && head[1] === 0xd8}`);
}

main().catch((err) => { console.error("FAIL:", err); process.exit(1); });