"""
Regenerate src-tauri/icons/source.png — dark rounded square + purple
progress ring + white 'C'. Matches the running widget's visual language.

Run from the project root:
    python3 scripts/make-icon.py
    pnpm tauri icon src-tauri/icons/source.png   # generates ico/icns/etc
"""

import math
import os
import sys
from pathlib import Path

try:
    from PIL import Image, ImageDraw, ImageFont
except ImportError:
    sys.stderr.write("Pillow not installed: pip install --user Pillow\n")
    sys.exit(2)

SIZE = 1024
PAD = 40
RADIUS = 180
RING_PAD = 200
STROKE = 60
PROGRESS = 0.72  # decorative; matches the widget at ~real usage

BG = (22, 24, 32, 255)
TRACK = (255, 255, 255, 26)
ACCENT = (176, 139, 255, 255)
FG = (232, 234, 240, 255)


def main(out: Path) -> None:
    img = Image.new("RGBA", (SIZE, SIZE), (0, 0, 0, 0))
    draw = ImageDraw.Draw(img)

    draw.rounded_rectangle([PAD, PAD, SIZE - PAD, SIZE - PAD], radius=RADIUS, fill=BG)

    box = [RING_PAD, RING_PAD, SIZE - RING_PAD, SIZE - RING_PAD]
    draw.arc(box, start=0, end=360, fill=TRACK, width=STROKE)

    sweep = 360 * PROGRESS
    draw.arc(box, start=-90, end=-90 + sweep, fill=ACCENT, width=STROKE)

    end_rad = math.radians(-90 + sweep)
    cx, cy = SIZE // 2, SIZE // 2
    r = (SIZE - 2 * RING_PAD) / 2
    ex, ey = cx + r * math.cos(end_rad), cy + r * math.sin(end_rad)
    dot = STROKE // 2
    draw.ellipse([ex - dot, ey - dot, ex + dot, ey + dot], fill=ACCENT)

    try:
        font = ImageFont.load_default(size=320)
    except Exception:
        font = None
    if font:
        text = "C"
        bbox = draw.textbbox((0, 0), text, font=font)
        tw = bbox[2] - bbox[0]
        th = bbox[3] - bbox[1]
        draw.text(((SIZE - tw) / 2 - bbox[0], (SIZE - th) / 2 - bbox[1] - 12),
                  text, font=font, fill=FG)

    out.parent.mkdir(parents=True, exist_ok=True)
    img.save(out, "PNG")
    print(f"wrote {out} {SIZE}x{SIZE}")


if __name__ == "__main__":
    here = Path(__file__).resolve().parent.parent
    main(here / "src-tauri" / "icons" / "source.png")