geograsim/App/sims/weltkueche/scripts/generate-dish-images.py

#!/usr/bin/env python3
"""Generiert Dish-Bilder (Top-down-Teller, flat scandinavian) für die
Weltküche-Sim. Aufruf: python generate-dish-images.py [<dish_id> ...]
Ohne Argumente: alle Gerichte aus DISHES generieren.

Output: App/sims/weltkueche/assets/img/dishes/<id>.webp (512x512)
Original-PNG geht in _original/-Unterordner."""
import json, os, subprocess, sys, tempfile, base64
from pathlib import Path

# Key aus .env.local lesen
KEY = None
env_path = 'C:/xampp/htdocs/geograsim/App/.env.local'
with open(env_path, 'r', encoding='utf-8') as f:
    for line in f:
        if line.startswith('OPENAI_API_KEY='):
            KEY = line.split('=', 1)[1].strip().strip('"').strip("'")
            break
if not KEY:
    sys.exit('OPENAI_API_KEY nicht in .env.local')

OUT_DIR = Path('C:/xampp/htdocs/geograsim/App/sims/weltkueche/assets/img/dishes')
ORIG_DIR = OUT_DIR / '_original'
OUT_DIR.mkdir(parents=True, exist_ok=True)
ORIG_DIR.mkdir(parents=True, exist_ok=True)

PROMPT_BASE = ("CRITICAL STYLE: flat vector illustration, children's-book / Scandinavian poster art, "
               "NO photography, NO 3D rendering, NO realistic shading, NO photographic textures, NO gradients. "
               "Style is wide-shape silhouettes with flat solid color fills, clean cut edges, simple geometric forms. "
               "Strict palette: dark forest green #1f4b37, sage green #4a7c4e, yellow-mustard #e8c547, beige #e8e4d8, white highlights, optional small red-orange accent #c97b5a. "
               "COMPOSITION: a single round plate or bowl centered, viewed top-down, filling about 80% of the square frame. "
               "Background is a flat beige #e8e4d8 surface with optional very subtle wood-grain hint (one or two thin sage lines). "
               "FORBIDDEN: text, letters, numbers, watermarks, logos, borders, frames, photo-realistic lighting, lens-flare, "
               "people faces, hands, brand names.")

# Pro Gericht ein kurzer Szenen-Suffix mit den charakteristischen visuellen Elementen
DISHES = {
    # === Österreich regional (5) ===
    'tiroler-groestl': "On the plate: roughly-cubed beige potato pieces with sage-green herb flakes, a flat-shape forest-green fried egg with a circular yellow-mustard yolk in the middle, small red-orange speck/bacon bits scattered around. Bowl rim in dark forest-green.",
    'kaerntner-kasnudeln': "On the plate: 4-5 half-moon-shaped beige pasta pockets (Nudeln) arranged in a circle, each with a small sage-green mint leaf accent on top, drizzled with yellow-mustard browned butter (a few flat curved drop-shapes). Bowl rim in dark forest-green.",
    'steirisches-wurzelfleisch': "On the plate: chunks of beige boiled beef with orange-toned carrot rounds and sage-green parsley root pieces in a clear broth (lightly tinted beige), topped with a small mound of bright white grated horseradish (Kren) and chopped chives in dark green. Bowl in dark forest-green.",
    'vorarlberger-kaesespaetzle': "On the plate: a heap of golden yellow-mustard small irregular dumplings (Spätzle) topped with melted cheese strands, crowned by a ring of crispy beige-brown fried onions, sage-green chive accents. Bowl rim in dark forest-green.",
    'wachauer-marillenknoedel': "On the plate: 3 round beige dumplings dusted with white powdered sugar and rolled in golden yellow-mustard breadcrumbs, one cut in half showing a bright orange-yellow apricot heart inside. A small sage-green mint leaf as garnish. Bowl rim in dark forest-green.",
}

def generate(dish_id, scene):
    out_png  = ORIG_DIR / f'{dish_id}.png'
    out_webp = OUT_DIR / f'{dish_id}.webp'
    if out_webp.exists():
        print(f'   SKIP (existiert): {out_webp.name}')
        return True
    prompt = PROMPT_BASE + " SCENE: " + scene
    body = json.dumps({'model': 'gpt-image-2', 'prompt': prompt, 'n': 1, 'size': '1024x1024'}, ensure_ascii=False)
    with tempfile.NamedTemporaryFile(mode='w', encoding='utf-8', suffix='.json', delete=False) as f:
        f.write(body); bpath = f.name
    r = subprocess.run(['curl', '-sS',
        '-X', 'POST', 'https://api.openai.com/v1/images/generations',
        '-H', 'Authorization: Bearer ' + KEY,
        '-H', 'Content-Type: application/json',
        '--data-binary', '@' + bpath], capture_output=True, text=True, timeout=300)
    os.unlink(bpath)
    try:
        data = json.loads(r.stdout)
        item = data['data'][0]
        if 'b64_json' in item:
            with open(out_png, 'wb') as f:
                f.write(base64.b64decode(item['b64_json']))
        elif 'url' in item:
            subprocess.run(['curl', '-sS', '-o', str(out_png), item['url']],
                           capture_output=True, text=True, timeout=60)
        else:
            return False
    except Exception as e:
        print(f'   FAIL: {r.stdout[:200] if r.stdout else e}')
        return False
    if not out_png.exists() or out_png.stat().st_size < 10000:
        return False
    # PNG → WebP 512x512 (Display) — Pillow
    try:
        from PIL import Image
        img = Image.open(out_png)
        img = img.resize((512, 512), Image.LANCZOS)
        img.save(out_webp, 'webp', quality=85, method=6)
    except Exception as e:
        print(f'   WebP-Fail: {e}')
        return False
    return True

ids = sys.argv[1:] if len(sys.argv) > 1 else list(DISHES.keys())
for d in ids:
    if d not in DISHES:
        print(f'-> {d}: UNBEKANNT')
        continue
    print(f'-> {d} ...', flush=True)
    ok = generate(d, DISHES[d])
    print(f'   {"OK" if ok else "FAIL"}: {d}.webp')