# 上游长连接池（性能整改 P0-2）：与 v2-api 复用连接，消除每请求 TCP 建连；
# keepalive 连接需配合 proxy_http_version 1.1 + proxy_set_header Connection ""
upstream v2_api {
    server v2-api:3001;
    keepalive 64;
}

# 防洪峰兜底限流（app 层 120 req/min/IP 更严，这里只挡瞬时洪峰/扫描；
# 默认 503 会误判服务故障，显式 429）
limit_req_zone $binary_remote_addr zone=public_api:10m rate=50r/s;
limit_req_status 429;

server {
    listen 80;
    server_name official.inkreach.cc;

    client_max_body_size 10m;

    # ACME challenge for cert renewals
    location /.well-known/acme-challenge/ {
        root /var/www/certbot;
    }

    location / {
        return 301 https://$host$request_uri;
    }
}

server {
    listen 443 ssl;
    http2 on;
    server_name official.inkreach.cc;

    ssl_certificate     /etc/nginx/certs/official.inkreach.cc_ecc/fullchain.cer;
    ssl_certificate_key /etc/nginx/certs/official.inkreach.cc_ecc/official.inkreach.cc.key;
    ssl_protocols TLSv1.2 TLSv1.3;

    client_max_body_size 10m;

    root /usr/share/nginx/html;

    # ACME challenge for cert renewals
    location /.well-known/acme-challenge/ {
        root /var/www/certbot;
    }

    # Admin SPA
    location /admin/ {
        try_files $uri $uri/ /admin/index.html;
    }
    location = /admin {
        return 301 /admin/;
    }

    # v2（refactor/v2 分支）路径分流：SPA 原样透传给 v2 admin 容器，/v2-api 去掉前缀转发到 v2 api
    location /v2/admin/ {
        proxy_pass http://v2-admin:80;
        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;
    }

    # v2 版 H5：透传给 v2 admin 容器（文件在 v2 镜像内，路径 /v2/h5/）
    location /v2/h5/ {
        proxy_pass http://v2-admin:80;
        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;
    }

    location /v2-api/ {
        proxy_pass http://v2_api/;
        proxy_http_version 1.1;
        proxy_set_header Connection "";
        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_read_timeout 30s;
        proxy_send_timeout 30s;
        limit_req zone=public_api burst=200 nodelay;
    }

    # H5 历史构建的 API 基址是同源相对路径 /public/*（BASE_URL="/"），直通 v2 api（路径原样透传）
    location /public/ {
        proxy_pass http://v2_api;
        proxy_http_version 1.1;
        proxy_set_header Connection "";
        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_read_timeout 30s;
        proxy_send_timeout 30s;
        limit_req zone=public_api burst=200 nodelay;
    }

    location = /h5 {
        return 301 /h5/;
    }

    location /h5/{
        try_files $uri $uri/ /h5/index.html;
    }

    # Uploaded files served by the API.
    # 缓存头注意：若运营有「同名替换图片」操作请改短 max-age 或改用版本化 URL
    location /uploads/ {
        proxy_pass http://v2_api/uploads/;
        proxy_http_version 1.1;
        proxy_set_header Connection "";
        proxy_set_header Host $host;
        expires 30d;
        add_header Cache-Control "public";
    }

    # Static product assets served by the API（哈希文件名，可长缓存）
    location /assets/ {
        proxy_pass http://v2_api/assets/;
        proxy_http_version 1.1;
        proxy_set_header Connection "";
        proxy_set_header Host $host;
        expires 30d;
        add_header Cache-Control "public";
    }

    # Website placeholder until the public site is deployed
    location / {
        return 302 /v2/admin/;
    }
}