# Font2SVG - Nginx 配置（fonts.biboer.cn）
# 用途：为微信小程序提供 fonts.json 与字体文件静态托管

server {
    listen 80;
    listen [::]:80;
    server_name fonts.biboer.cn;
    return 301 https://$host$request_uri;
}

server {
    listen 443 ssl http2;
    listen [::]:443 ssl http2;
    server_name fonts.biboer.cn;

    # Certbot 证书
    ssl_certificate /etc/letsencrypt/live/fonts.biboer.cn/fullchain.pem;
    ssl_certificate_key /etc/letsencrypt/live/fonts.biboer.cn/privkey.pem;
    include /etc/letsencrypt/options-ssl-nginx.conf;
    ssl_dhparam /etc/letsencrypt/ssl-dhparams.pem;

    # 静态资源根目录（需包含 fonts.json 与 fonts/ 目录）
    root /home/gavin/font2svg;
    index fonts.json;

    access_log /var/log/nginx/font2svg_access.log;
    error_log /var/log/nginx/font2svg_error.log;

    server_tokens off;

    # 小程序跨域访问
    add_header Access-Control-Allow-Origin "*" always;
    add_header Access-Control-Allow-Methods "GET,HEAD,OPTIONS" always;
    add_header Access-Control-Allow-Headers "Origin,Range,Accept,Content-Type" always;
    add_header Access-Control-Expose-Headers "Content-Length,Content-Range" always;

    # MIME
    types {
        application/json json;
        font/ttf ttf;
        font/otf otf;
        font/woff woff;
        font/woff2 woff2;
        application/vnd.ms-fontobject eot;
    }

    # SVG 渲染 API（独立 Python 服务）
    location /api/ {
        proxy_pass http://127.0.0.1:9300;
        proxy_http_version 1.1;
        proxy_set_header Host $host;
        proxy_set_header X-Real-IP $remote_addr;
        proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
        proxy_set_header X-Forwarded-Proto $scheme;
        proxy_connect_timeout 5s;
        proxy_send_timeout 60s;
        proxy_read_timeout 60s;
    }

    # fonts.json：短缓存，便于更新
    location = /fonts.json {
        expires 1h;
        add_header Cache-Control "public, must-revalidate";
        add_header Access-Control-Allow-Origin "*" always;
        add_header Access-Control-Allow-Methods "GET,HEAD,OPTIONS" always;
        add_header Access-Control-Allow-Headers "Origin,Range,Accept,Content-Type" always;
        add_header Access-Control-Expose-Headers "Content-Length,Content-Range" always;
        try_files $uri =404;
    }

    # 字体文件：长缓存
    location ~* \.(ttf|otf|woff|woff2|eot)$ {
        expires 30d;
        add_header Cache-Control "public, immutable";
        add_header Access-Control-Allow-Origin "*" always;
        add_header Access-Control-Allow-Methods "GET,HEAD,OPTIONS" always;
        add_header Access-Control-Allow-Headers "Origin,Range,Accept,Content-Type" always;
        add_header Access-Control-Expose-Headers "Content-Length,Content-Range" always;
        try_files $uri =404;
    }

    # 默认仅允许静态文件
    location / {
        # 处理预检请求（if 在 location 内合法）
        if ($request_method = OPTIONS) {
            add_header Access-Control-Allow-Origin "*";
            add_header Access-Control-Allow-Methods "GET,HEAD,OPTIONS";
            add_header Access-Control-Allow-Headers "Origin,Range,Accept,Content-Type";
            add_header Access-Control-Max-Age 1728000;
            add_header Content-Length 0;
            add_header Content-Type "text/plain; charset=utf-8";
            return 204;
        }

        try_files $uri =404;
    }

    # 禁止访问隐藏文件
    location ~ /\. {
        deny all;
        access_log off;
        log_not_found off;
    }
}