"""The picture beside the render from its camera, and the render's outline over the picture.

python tg_pair.py TAG   -> previews/compare/<TAG>_pair.png (picture | render), <TAG>_blend.png (50 % mix)
"""
import sys
from pathlib import Path
from PIL import Image

ROOT = Path(__file__).resolve().parents[1]
CMP = ROOT / "previews" / "compare"
tag = sys.argv[1]
pic = Image.open(ROOT / "reference" / "user_picture.jpg").convert("RGB")
ren = Image.open(CMP / f"{tag}_render.png").convert("RGB").resize(pic.size)
pair = Image.new("RGB", (pic.width * 2 + 8, pic.height), (255, 255, 255))
pair.paste(pic, (0, 0))
pair.paste(ren, (pic.width + 8, 0))
pair.save(CMP / f"{tag}_pair.png")
Image.blend(pic, ren, 0.5).save(CMP / f"{tag}_blend.png")
print(CMP / f"{tag}_pair.png")