"""Génère assets/icon.png (1024×1024) : un micro stylisé sur un carré violet dégradé.

Reproductible et sans dépendance externe (Pillow seulement). Lancer : python assets/make_icon.py
"""
import os

from PIL import Image, ImageDraw

SIZE = 1024
BG_TOP = (130, 80, 235)     # violet
BG_BOT = (85, 50, 180)      # violet plus foncé (dégradé vertical)
MIC = (255, 255, 255)


def _rounded_gradient(size, radius):
    """Carré arrondi avec dégradé vertical."""
    base = Image.new("RGBA", (size, size), (0, 0, 0, 0))
    grad = Image.new("RGBA", (size, size))
    for y in range(size):
        t = y / (size - 1)
        r = int(BG_TOP[0] * (1 - t) + BG_BOT[0] * t)
        g = int(BG_TOP[1] * (1 - t) + BG_BOT[1] * t)
        b = int(BG_TOP[2] * (1 - t) + BG_BOT[2] * t)
        for x in range(size):
            grad.putpixel((x, y), (r, g, b, 255))
    mask = Image.new("L", (size, size), 0)
    ImageDraw.Draw(mask).rounded_rectangle([0, 0, size, size], radius=radius, fill=255)
    base.paste(grad, (0, 0), mask)
    return base


def make_icon(path):
    img = _rounded_gradient(SIZE, radius=int(SIZE * 0.22))
    d = ImageDraw.Draw(img)
    cx = SIZE / 2
    # corps du micro (capsule arrondie)
    mic_w, mic_h = SIZE * 0.26, SIZE * 0.40
    top = SIZE * 0.20
    d.rounded_rectangle(
        [cx - mic_w / 2, top, cx + mic_w / 2, top + mic_h],
        radius=mic_w / 2, fill=MIC,
    )
    # arceau (support en U sous le micro)
    arc_r = SIZE * 0.20
    arc_cy = top + mic_h * 0.55
    d.arc(
        [cx - arc_r, arc_cy - arc_r, cx + arc_r, arc_cy + arc_r],
        start=20, end=160, fill=MIC, width=int(SIZE * 0.035),
    )
    # pied du micro
    foot_top = arc_cy + arc_r
    d.line([cx, foot_top, cx, foot_top + SIZE * 0.10], fill=MIC, width=int(SIZE * 0.035))
    d.line(
        [cx - SIZE * 0.10, foot_top + SIZE * 0.10, cx + SIZE * 0.10, foot_top + SIZE * 0.10],
        fill=MIC, width=int(SIZE * 0.035),
    )
    os.makedirs(os.path.dirname(path), exist_ok=True)
    img.save(path)
    print(f"icône écrite : {path}")


if __name__ == "__main__":
    here = os.path.dirname(os.path.abspath(__file__))
    make_icon(os.path.join(here, "icon.png"))