import fs from 'node:fs';
import os from 'node:os';
import path from 'node:path';
import zlib from 'node:zlib';
import { checkPackage } from '../install.js';
import { resultEnvelope } from '../mcp/src/core/result-envelope.mjs';
import { buildImageSetPlan, verifyPlan } from '../mcp/src/features/planning/planner.mjs';
import { scoreImageSet } from '../skills/fmode-image-set-score/scripts/score-image-set.mjs';

function crc32(bytes) {
  let crc = 0xffffffff;
  for (const byte of bytes) {
    crc ^= byte;
    for (let bit = 0; bit < 8; bit += 1) crc = (crc >>> 1) ^ (crc & 1 ? 0xedb88320 : 0);
  }
  return (crc ^ 0xffffffff) >>> 0;
}

function pngChunk(type, data = Buffer.alloc(0)) {
  const typeBytes = Buffer.from(type, 'ascii');
  const chunk = Buffer.alloc(12 + data.length);
  chunk.writeUInt32BE(data.length, 0);
  typeBytes.copy(chunk, 4);
  data.copy(chunk, 8);
  chunk.writeUInt32BE(crc32(Buffer.concat([typeBytes, data])), 8 + data.length);
  return chunk;
}

function fakePng(width, height) {
  const ihdr = Buffer.alloc(13);
  ihdr.writeUInt32BE(width, 0);
  ihdr.writeUInt32BE(height, 4);
  ihdr[8] = 8;
  ihdr[9] = 2;
  const raw = Buffer.alloc(height * (width * 3 + 1));
  return Buffer.concat([
    Buffer.from([137, 80, 78, 71, 13, 10, 26, 10]),
    pngChunk('IHDR', ihdr), pngChunk('IDAT', zlib.deflateSync(raw)), pngChunk('IEND')
  ]);
}

const root = path.resolve(import.meta.dirname, '..');
const checked = checkPackage(root);
if (!checked.ok) throw new Error(`Package check failed: ${checked.errors.join(', ')}`);
const envelope = resultEnvelope({ status: 'ok', assistantMessage: 'smoke' });
for (const key of ['status','assistantMessage','summary','data','files','nextActions','warnings','errors']) {
  if (!(key in envelope)) throw new Error(`Missing envelope field: ${key}`);
}
const plan = buildImageSetPlan({ request: '规划七张商品套图', productDescription: '测试商品' });
verifyPlan(plan);
if (plan.items.length !== 7 || plan.requiresConfirmation !== true) throw new Error('Planning smoke failed.');
for (const locale of ['zh', 'en']) {
  const directory = path.join(root, 'mcp', 'catalog', 'templates', locale);
  if (fs.readdirSync(directory).filter(name => name.endsWith('.json')).length !== 25) throw new Error(`${locale} template count mismatch`);
}
const scoreFixture = fs.mkdtempSync(path.join(os.tmpdir(), 'fmode-score-smoke-'));
let score;
try {
  fs.writeFileSync(path.join(scoreFixture, 'one.png'), fakePng(1024, 1024));
  score = scoreImageSet({ inputs: [scoreFixture], profile: 'generic' });
  if (score.automaticScore !== 100 || score.overallScore !== null || score.grade !== null || score.verdict !== 'insufficient_evidence' || score.sourceIntegrity.unchanged !== true) {
    throw new Error('Independent score smoke failed.');
  }
} finally {
  fs.rmSync(scoreFixture, { recursive: true, force: true });
}
console.log(JSON.stringify({ status: 'ok', check: checked, planId: plan.planId, templates: 50, score: { version: score.scoreVersion, automatic: score.automaticScore, overall: score.overallScore, verdict: score.verdict } }, null, 2));