// Генерация 8 новых поз Зеро — расширенный набор.
// Запуск: cd /var/www/zeropost-engine && node scripts/generate-zero-poses-v2.js

const fs = require('fs');
const path = require('path');
const axios = require('axios');

const ROOT = '/var/www/zeropost-engine';
process.chdir(ROOT);
require('dotenv').config({ path: path.join(ROOT, '.env') });
const config = require(path.join(ROOT, 'src/config'));

const UPLOADS_DIR = process.env.UPLOADS_DIR || '/var/www/zeropost-uploads';
let sharp = null;
try { sharp = require('sharp'); } catch {}

const CHARACTER_BASE = `
Character: a small, friendly mascot named Zero.
Body: a soft rounded square shape (like a plump pixel or chubby tetris block).
Color: bright emerald green (#10b981) with slight gradient to teal, soft and matte.
Face: two simple round black dot eyes, a small mouth expressing the current emotion.
Style: clean modern vector illustration, flat design with soft shading, no outlines.
Background: warm off-white (#fafaf9) with subtle geometric shapes in light teal/emerald.
Composition: 1:1 square format with comfortable padding, character is the main focus.
Strictly: no text, no letters, no logos, no humans, no realistic robots, no circuits.
`.trim();

const NEW_POSES = [
  {
    name: 'swimming',
    desc: 'Zero is swimming or floating happily in stylized blue water waves. Small stick arms doing a swim stroke, surrounded by abstract blue and teal wave shapes. Big happy smile, eyes bright. Playful aquatic mood.',
  },
  {
    name: 'thinking',
    desc: 'Zero sits quietly, looking thoughtfully into the distance. One small stick arm raised slightly touching chin area in a thinking gesture. Eyes are slightly narrowed and upward-looking. Calm, contemplative expression. A small thought-bubble or single floating dot above.',
  },
  {
    name: 'coffee',
    desc: 'Zero holds an oversized steaming coffee mug (the mug is almost as big as Zero itself) with both stick arms. Cozy content smile, eyes half-closed in morning satisfaction. Steam rising in decorative curls. Warm amber and cream color accents from the mug.',
  },
  {
    name: 'telescope',
    desc: 'Zero peers through a small stylized telescope (geometric, teal colored). One eye closed, one looking through the eyepiece. Expression of curiosity and discovery. Stars or geometric star shapes floating in background.',
  },
  {
    name: 'rocket',
    desc: 'Zero sits on top of or rides a small stylized rocket (geometric, emerald and white colored). Both stick arms raised in excitement. Big grin, eyes wide with excitement. Abstract motion lines and geometric stars around. Launch/deploy energy.',
  },
  {
    name: 'bug',
    desc: 'Zero stands next to a large stylized bug (geometric beetle shape, in a contrasting color like amber or red). Zero has a detective expression — slightly furrowed brow, focused eyes, one stick arm pointing at the bug. Bug-hunting / debugging moment.',
  },
  {
    name: 'sleep',
    desc: 'Zero is sleeping peacefully. Eyes closed (shown as two curved lines). Small content smile. Floating ZZZ letters nearby (styled as geometric shapes, not text). A small pillow or star shape underneath. Soft, calm, night-time mood with dark blue accents.',
  },
  {
    name: 'thumbsup',
    desc: 'Zero gives an enthusiastic thumbs up with one raised stick arm (the thumb is stylized as a geometric shape). Big confident smile, eyes bright and happy. Possibly a small star or sparkle nearby. Approval, recommendation, "great choice" energy.',
  },
];

const ATTEMPTS = 8;
const LOG = '/tmp/zero-poses-v2.log';

function log(msg) {
  const line = `[${new Date().toISOString().slice(11,19)}] ${msg}`;
  fs.appendFileSync(LOG, line + '\n');
  console.log(line);
}

async function generateOne(prompt, attempt = 1) {
  const model = process.env.AI_MODEL_IMAGE_VIA_RESPONSES || 'gpt-5.5';
  const wrapped = `Use the image_generation tool to create the following illustration. Do not write any text response, only call the tool.\n\n${prompt}`;
  try {
    const res = await axios.post(
      `${config.ai.baseUrl}/responses`,
      { model, input: wrapped, tools: [{ type: 'image_generation' }], tool_choice: { type: 'image_generation' } },
      { headers: { Authorization: `Bearer ${config.ai.imageApiKey}` }, timeout: 300_000 }
    );
    const output = res.data?.output || [];
    const imgCall = output.find(o => o.type === 'image_generation_call');
    if (!imgCall || !imgCall.result) {
      if (attempt < ATTEMPTS) {
        log(`  retry ${attempt+1}/${ATTEMPTS} (no image)`);
        return generateOne(prompt, attempt + 1);
      }
      throw new Error('No image after ' + ATTEMPTS + ' attempts');
    }
    return Buffer.from(imgCall.result, 'base64');
  } catch (err) {
    if (attempt < ATTEMPTS) {
      const msg = err.response?.data?.error?.message || err.message;
      log(`  retry ${attempt+1}/${ATTEMPTS} (${msg.slice(0,50)})`);
      return generateOne(prompt, attempt + 1);
    }
    throw err;
  }
}

async function saveBytes(bytes, name) {
  const outPath = path.join(UPLOADS_DIR, `zero-${name}.webp`);
  if (sharp) {
    await sharp(bytes).resize(1024, 1024, { fit: 'cover' }).webp({ quality: 88 }).toFile(outPath);
  } else {
    fs.writeFileSync(outPath, bytes);
  }
  return outPath;
}

(async () => {
  fs.writeFileSync(LOG, '');
  log(`=== generating ${NEW_POSES.length} new Zero poses ===`);
  const done = [], failed = [];

  for (const p of NEW_POSES) {
    const outPath = path.join(UPLOADS_DIR, `zero-${p.name}.webp`);
    if (fs.existsSync(outPath)) {
      log(`[${p.name}] already exists, skip`);
      done.push(p.name);
      continue;
    }
    log(`[${p.name}] starting...`);
    const t = Date.now();
    try {
      const bytes = await generateOne(`${CHARACTER_BASE}\n\nPose: ${p.desc}`);
      const out = await saveBytes(bytes, p.name);
      const elapsed = ((Date.now() - t) / 1000).toFixed(0);
      log(`[${p.name}] ✅ saved (${elapsed}s) → ${out}`);
      done.push(p.name);
    } catch (err) {
      log(`[${p.name}] ❌ FAILED: ${err.message.slice(0, 100)}`);
      failed.push(p.name);
    }
  }

  log(`=== DONE: ${done.length} ok, ${failed.length} failed ===`);
  if (failed.length) log('Failed: ' + failed.join(', '));
  process.exit(0);
})();