from __future__ import annotations

from pathlib import Path

from PIL import Image, ImageDraw, ImageFont, ImageOps


REPO_ROOT = Path(__file__).resolve().parents[1]
OUTPUT_DIR = REPO_ROOT / "public" / "branding" / "taonier-logo-brief-concepts"
CONTACT_SHEET_PATH = OUTPUT_DIR / "taonier-logo-brief-contact-sheet.png"

ITEMS = [
    ("01 闭合曲线标", "taonier-logo-brief-01-closed-curve-mark"),
    ("02 亲和几何种", "taonier-logo-brief-02-friendly-geo-seed"),
    ("03 精品软轮廓", "taonier-logo-brief-03-premium-soft-contour"),
    ("04 轻玩闭合片", "taonier-logo-brief-04-playful-closed-tile"),
    ("05 黑白优先", "taonier-logo-brief-05-monochrome-first"),
    ("06 数字陶泥点", "taonier-logo-brief-06-digital-clay-accent"),
    ("07 头像紧凑标", "taonier-logo-brief-07-compact-avatar-symbol"),
    ("08 矢量定稿感", "taonier-logo-brief-08-designer-vector-ready"),
]


def load_font(size: int) -> ImageFont.FreeTypeFont | ImageFont.ImageFont:
    candidates = [
        Path("C:/Windows/Fonts/msyh.ttc"),
        Path("C:/Windows/Fonts/simhei.ttf"),
        Path("C:/Windows/Fonts/simsun.ttc"),
    ]
    for candidate in candidates:
        if candidate.exists():
            return ImageFont.truetype(str(candidate), size)
    return ImageFont.load_default()


def find_image(stem: str) -> Path | None:
    for extension in ("png", "webp", "jpg", "jpeg"):
        candidate = OUTPUT_DIR / f"{stem}.{extension}"
        if candidate.exists():
            return candidate
    return None


def bw_preview(image: Image.Image, size: int) -> Image.Image:
    thumb = ImageOps.grayscale(image).resize((size, size), Image.Resampling.LANCZOS)
    return ImageOps.autocontrast(thumb).convert("RGB")


def main() -> None:
    cell_size = 300
    label_height = 58
    test_height = 46
    gap = 24
    columns = 4
    rows = 2
    cell_total_height = cell_size + label_height + test_height
    width = columns * cell_size + (columns + 1) * gap
    height = rows * cell_total_height + (rows + 1) * gap

    sheet = Image.new("RGB", (width, height), "#ede8de")
    draw = ImageDraw.Draw(sheet)
    label_font = load_font(20)
    test_font = load_font(14)

    for index, (label, stem) in enumerate(ITEMS):
        row = index // columns
        column = index % columns
        x = gap + column * (cell_size + gap)
        y = gap + row * (cell_total_height + gap)

        image_path = find_image(stem)
        if image_path is None:
            continue

        source = Image.open(image_path).convert("RGB")
        thumbnail = source.resize((cell_size, cell_size), Image.Resampling.LANCZOS)
        sheet.paste(thumbnail, (x, y))

        draw.rounded_rectangle(
            (x, y + cell_size, x + cell_size, y + cell_size + label_height),
            radius=8,
            fill="#fbfaf6",
        )
        text_box = draw.textbbox((0, 0), label, font=label_font)
        text_x = x + (cell_size - (text_box[2] - text_box[0])) / 2
        text_y = y + cell_size + (label_height - (text_box[3] - text_box[1])) / 2 - 2
        draw.text((text_x, text_y), label, fill="#302a25", font=label_font)

        test_y = y + cell_size + label_height
        draw.rounded_rectangle(
            (x, test_y, x + cell_size, test_y + test_height),
            radius=8,
            fill="#f4f1ea",
        )
        tiny = source.resize((32, 32), Image.Resampling.LANCZOS)
        mono = bw_preview(source, 32)
        sheet.paste(tiny, (x + 68, test_y + 7))
        sheet.paste(mono, (x + 122, test_y + 7))
        draw.text((x + 166, test_y + 14), "32px / BW", fill="#5c5148", font=test_font)

    OUTPUT_DIR.mkdir(parents=True, exist_ok=True)
    sheet.save(CONTACT_SHEET_PATH, quality=95)
    print(CONTACT_SHEET_PATH)


if __name__ == "__main__":
    main()