/**
 * Smoke test for the new `attachments.upload_for_quote` MCP tool.
 *
 * Verifies:
 * 1. We can create a quote, then upload 3 attachments of different types
 *    (PDF stub, CSV, plain text) to it via the new MCP tool.
 * 2. The `quote_attachments` collection has 3 rows linked to the new
 *    quote, with the right kinds (pdf / other / other) and content_types.
 * 3. The quote's `has_attachments` flag is set to true.
 * 4. The PB file URL for each attachment is reachable.
 *
 * Run with: tsx scripts/smoke/upload-attachment.ts
 */
import { createQuoteFromEmail, findQuoteByMessageId } from "../../src/lib/server/quotes-service";
import { getAdminPocketBase } from "../../src/lib/server/pocketbase-admin";
import { uploadAttachmentForQuote } from "../../src/lib/server/quotes-service";

const RUN_ID = `${Date.now()}-${Math.random().toString(36).slice(2, 8)}`;
const MSG_ID = `<attach-smoke-${RUN_ID}@example.com>`;

// Tiny valid PDF (1 page, "Hello"). Generated by hand.
const PDF_BYTES = Buffer.from(
  "%PDF-1.1\n1 0 obj<<>>endobj\nxref\n0 1\n0000000000 65535 f\ntrailer<<>>\n%%EOF\n",
  "utf-8"
);
const PDF_B64 = PDF_BYTES.toString("base64");

const CSV_TEXT = "sku,description,qty\nBOLT-M20,M20 bolt,50\nNUT-M12,M12 nut,7\n";
const CSV_B64 = Buffer.from(CSV_TEXT, "utf-8").toString("base64");

const TXT_TEXT = "Plain text note from the smoke test.\nLine 2.\n";
const TXT_B64 = Buffer.from(TXT_TEXT, "utf-8").toString("base64");

async function main() {
  // ── 1. Create a quote (no inline attachments — they'll go via the new tool)
  const r = await createQuoteFromEmail({
    from_email: `attach-test-${RUN_ID}@example.com`,
    from_name: "Attachment Test",
    subject: `Testing attachments ${RUN_ID}`,
    body_plain: "Please find 3 attachments: a PDF, a CSV, and a text note.",
    message_id: MSG_ID,
    received_at: new Date().toISOString(),
    extracted_items: [{ description: "Test line item", quantity: 1 }],
    // attachments field accepted for back-compat but ignored
    attachments: [],
  });
  if (r.deduped) throw new Error("FAIL — first call should not be deduped");
  console.log(`Created ${r.quote_number} (id=${r.quote.id}) with ${r.items} item(s).`);
  if (r.attachments !== 0) throw new Error(`FAIL — base create should report 0 attachments, got ${r.attachments}`);

  // ── 2. Upload 3 attachments via the new MCP-path function.
  const u1 = (await uploadAttachmentForQuote({
    quoteId: r.quote.id,
    filename: "rfq.pdf",
    contentType: "application/pdf",
    size: PDF_BYTES.length,
    base64: PDF_B64,
    messageId: MSG_ID,
  })) as Record<string, string>;
  console.log(`  + ${u1.filename}  kind=${u1.kind}  size=${u1.size_bytes}  id=${u1.id}`);

  const u2 = (await uploadAttachmentForQuote({
    quoteId: r.quote.id,
    filename: "line-items.csv",
    contentType: "text/csv",
    base64: CSV_B64,
    messageId: MSG_ID,
  })) as Record<string, string>;
  console.log(`  + ${u2.filename}  kind=${u2.kind}  size=${u2.size_bytes}  id=${u2.id}`);

  const u3 = (await uploadAttachmentForQuote({
    quoteId: r.quote.id,
    filename: "notes.txt",
    contentType: "text/plain",
    base64: TXT_B64,
    messageId: MSG_ID,
  })) as Record<string, string>;
  console.log(`  + ${u3.filename}  kind=${u3.kind}  size=${u3.size_bytes}  id=${u3.id}`);

  // ── 3. Verify the rows are linked to the quote with the right kinds.
  if (u1.kind !== "pdf") throw new Error(`FAIL — u1.kind should be 'pdf', got '${u1.kind}'`);
  if (u2.kind !== "other") throw new Error(`FAIL — u2.kind should be 'other' (csv), got '${u2.kind}'`);
  if (u3.kind !== "other") throw new Error(`FAIL — u3.kind should be 'other' (txt), got '${u3.kind}'`);
  if (u1.quote !== r.quote.id) throw new Error(`FAIL — u1.quote should be ${r.quote.id}, got ${u1.quote}`);

  // ── 4. Verify the quote's has_attachments flag is set.
  const pb = await getAdminPocketBase();
  const refetched = await pb.collection("quotes").getOne(r.quote.id);
  if (!refetched.has_attachments) {
    throw new Error("FAIL — quote.has_attachments should be true after uploads");
  }

  // ── 5. Verify the PB file URLs are reachable.
  const baseUrl =
    process.env.NEXT_PUBLIC_POCKETBASE_URL || "https://pocketbase-gnqc88suy8fqk6wyryjjdpvl.169.239.180.130.sslip.io";
  for (const a of [u1, u2, u3]) {
    const url = `${baseUrl.replace(/\/$/, "")}/api/files/quote_attachments/${a.id}/${a.file}`;
    const res = await fetch(url);
    if (!res.ok) {
      throw new Error(`FAIL — attachment ${a.filename} fetch returned ${res.status}`);
    }
    console.log(`  ✓ ${a.filename}  HTTP ${res.status}  ${(await res.arrayBuffer()).byteLength} bytes`);
  }

  // ── 6. Verify dedup still works for the same message_id
  const looked = await findQuoteByMessageId(MSG_ID);
  if (!looked || looked.id !== r.quote.id) {
    throw new Error("FAIL — message_id lookup should still return the same quote");
  }

  console.log(`\nALL ATTACHMENT SMOKE CHECKS PASSED.`);
  console.log(`Quote ${r.quote_number} (id=${r.quote.id}) has 3 attachments.`);
}
main().catch((err) => {
  console.error(err);
  process.exit(1);
});