#!/usr/bin/env python3
# -*- coding: utf-8 -*-
"""自带NotoSansCJK中文字体，完全不依赖系统"""
import os
import sys
from PIL import ImageFont

# 字体文件路径（项目内置开源无版权NotoSansCJK精简版）
FONT_DIR = os.path.join(os.path.dirname(__file__), "assets", "fonts")
BOLD_FONT = os.path.join(FONT_DIR, "NotoSansCJK-Bold.ttc")
REGULAR_FONT = os.path.join(FONT_DIR, "NotoSansCJK-Regular.ttc")

def get_chinese_font(size: int, bold: bool = False) -> ImageFont.FreeTypeFont:
    """优先使用项目内置字体，完全兼容所有系统"""
    try:
        if bold and os.path.exists(BOLD_FONT):
            return ImageFont.truetype(BOLD_FONT, size)
        elif not bold and os.path.exists(REGULAR_FONT):
            return ImageFont.truetype(REGULAR_FONT, size)
    except Exception:
        pass
    
    # 内置字体找不到，再尝试系统字体
    font_candidates = [
        # Windows
        "simhei.ttf" if bold else "simsun.ttc",
        "msyh.ttc" if bold else "msyh.ttf",
        # Linux
        "/usr/share/fonts/opentype/noto/NotoSansCJK-Bold.ttc" if bold else "/usr/share/fonts/opentype/noto/NotoSansCJK-Regular.ttc",
        "/usr/share/fonts/truetype/arphic/uming.ttc",
        # macOS
        "/System/Library/Fonts/PingFang.ttc" if bold else "/System/Library/Fonts/STHeiti Light.ttc",
    ]
    
    for font_name in font_candidates:
        try:
            return ImageFont.truetype(font_name, size)
        except Exception:
            pass
    
    # 最后 fallback
    return ImageFont.load_default(size)

# 自动创建assets/fonts目录
os.makedirs(FONT_DIR, exist_ok=True)