"""Generate a clean OG image (1200x630, white background, centered logo)."""
from PIL import Image
import os

ROOT = os.path.dirname(os.path.dirname(os.path.abspath(__file__)))
LOGO = os.path.join(ROOT, "public/images/logo/dealplustech-logo.png")
OUT  = os.path.join(ROOT, "public/images/og/default-og.jpg")

CANVAS_W, CANVAS_H = 1200, 630
LOGO_MAX_W = int(CANVAS_W * 0.70)  # 70% of canvas width
LOGO_MAX_H = int(CANVAS_H * 0.70)  # 70% of canvas height

# 1. White canvas
canvas = Image.new("RGB", (CANVAS_W, CANVAS_H), (255, 255, 255))

# 2. Open logo (RGBA)
logo = Image.open(LOGO).convert("RGBA")
lw, lh = logo.size
print(f"logo original: {lw}x{lh}")

# 3. Scale logo to fit within 70% box, preserve aspect ratio
scale = min(LOGO_MAX_W / lw, LOGO_MAX_H / lh)
new_w = int(lw * scale)
new_h = int(lh * scale)
logo = logo.resize((new_w, new_h), Image.LANCZOS)
print(f"logo scaled:   {new_w}x{new_h}")

# 4. Center
x0 = (CANVAS_W - new_w) // 2
y0 = (CANVAS_H - new_h) // 2

# 5. Paste (uses alpha as mask)
canvas.paste(logo, (x0, y0), logo)

# 6. Save as JPEG quality 90
os.makedirs(os.path.dirname(OUT), exist_ok=True)
canvas.save(OUT, "JPEG", quality=90, optimize=True, progressive=True)

size = os.path.getsize(OUT)
print(f"wrote: {OUT} ({size:,} bytes)")