# OpenIM / PC 客户端统一入口（HTTP :80）
# 后端均为本机 deploy-test 单机进程：openim-server、chat-api
#
# 安装：在测试服务器上以 root 执行
#   sudo ./deploy-test/00-init-tools.sh nginx
#
# 安全组 / 防火墙须放行 TCP 80；后端 10001/10002/10008 仅需本机访问（127.0.0.1）
#
# CORS：chat-api（:10008）与 openim（:10001/:10002）已在应用内通过 openimsdk/tools/mw.CorsHandler
# 返回 Access-Control-Allow-Origin: *。若在此再用 add_header 追加 $http_origin，浏览器会收到
# 「*, http://IP:5173」两个值并报错。故本配置不在 Nginx 层添加 CORS，预检 OPTIONS 也交给上游处理。
#
# default_server：纯 IP 访问 http://x.x.x.x/ 时命中本 server（不做 CMS 静态站，仅 API 网关）
# CMS 开发请用 http://IP:8001（UMI dev）

map $http_upgrade $connection_upgrade {
    default upgrade;
    ''      close;
}

log_format openim_pc_gateway
    '$remote_addr - $host [$time_local] "$request" status=$status bytes=$body_bytes_sent '
    'upgrade="$http_upgrade" connection="$http_connection" '
    'upstream="$upstream_addr" upstream_status="$upstream_status" '
    'upstream_time="$upstream_response_time" request_time="$request_time" '
    'referer="$http_referer" ua="$http_user_agent"';

server {
    listen 80 default_server;
    listen [::]:80 default_server;
    server_name _;

    client_max_body_size 100m;
    access_log /var/log/nginx/openim-pc-proxy-access.log openim_pc_gateway;
    error_log /var/log/nginx/openim-pc-proxy-error.log warn;

    # 根路径：不托管前端；避免与其它站点抢 default_server 后仍误以为是 CMS
    location = / {
        default_type text/plain;
        charset utf-8;
        return 200 "OpenIM API gateway (deploy-test). Paths: /api/im/ /api/user/ /api/chat/ /msg_gateway — CMS dev: :8001\n";
    }

    # OpenIM HTTP API → openim-server :10002
    location /api/im/ {
        proxy_pass http://127.0.0.1:10002/;
        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_read_timeout 300s;
        proxy_send_timeout 300s;
    }

    # 用户 / 登录相关 → chat-api :10008（与 im-cms-nginx 一致）
    location /api/user/ {
        proxy_pass http://127.0.0.1:10008/;
        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_read_timeout 300s;
        proxy_send_timeout 300s;
    }

    # Chat API → chat-api :10008
    location /api/chat/ {
        proxy_pass http://127.0.0.1:10008/;
        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_read_timeout 300s;
        proxy_send_timeout 300s;
    }

    # Admin API → admin-api :10009
    location /api/admin/ {
        proxy_pass http://127.0.0.1:10009/;
        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_read_timeout 300s;
        proxy_send_timeout 300s;
    }

    # MsgGateway WebSocket → openim-server :10001
    location ^~ /msg_gateway {
        proxy_pass http://127.0.0.1:10001;
        proxy_http_version 1.1;
        proxy_set_header Upgrade $http_upgrade;
        proxy_set_header Connection $connection_upgrade;
        proxy_set_header Host $host;
        proxy_set_header X-Forwarded-Host $host;
        proxy_set_header X-Forwarded-Port $server_port;
        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_cache_bypass $http_upgrade;
        proxy_buffering off;
        proxy_read_timeout 86400s;
        proxy_send_timeout 86400s;
    }

    # 可选：健康检查
    location = /nginx-health {
        access_log off;
        default_type text/plain;
        return 200 "ok\n";
    }
}