error_log /var/log/nginx/error.log debug;
pid /var/run/nginx.pid;

events {
    worker_connections 1024;
}

http {
    include /etc/nginx/mime.types;
    default_type application/octet-stream;

    log_format main '$remote_addr - $remote_user [$time_local] "$request" '
                    '$status $body_bytes_sent "$http_referer" '
                    '"$http_user_agent" "$http_x_forwarded_for"';
    access_log /var/log/nginx/access.log main;

    sendfile on;
    keepalive_timeout 65;
    # Gzip 压缩1
    gzip on;
    gzip_vary on;
    gzip_proxied any;
    gzip_comp_level 6;
    gzip_types text/plain text/css application/json application/javascript application/x-javascript text/xml application/xml application/xml+rss text/javascript;

    # Sys 系统 API
    upstream sys_api {
        server sys-api:19902;
    }
    
    # Lmg 系统 API
    upstream lmg_api {
        server lmg-api:19903;
    }
    
    # Sys 系统 UI
    upstream sys_ui {
        server sys-ui:80;
    }

    # Lmg 系统 UI
    upstream lmg_ui {
        server lmg-ui:80;
    }

    # ======================
    # 1. IdentityServer4 专用端口 (8001)
    # ======================
    server {
        listen 8001 ssl;
        server_name 106.52.199.114;
        ssl_certificate /etc/nginx/certs/gateway.crt;
        ssl_certificate_key /etc/nginx/certs/gateway.key;
        ssl_protocols TLSv1.2 TLSv1.3;
        ssl_prefer_server_ciphers on;
        ssl_ciphers ECDHE-ECDSA-AES128-GCM-SHA256:ECDHE-RSA-AES128-GCM-SHA256:ECDHE-ECDSA-AES256-GCM-SHA384:ECDHE-RSA-AES256-GCM-SHA384:DHE-RSA-AES128-GCM-SHA256:DHE-RSA-AES256-GCM-SHA384;
        ssl_session_cache shared:SSL:10m;
        ssl_session_timeout 10m;
        ssl_verify_client off;  # ↓ 允许自签名证书
        ssl_verify_depth 0;
        # 统一代理头（确保IdentityServer获取真实客户端信息）
        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;
                # 单独处理发现文档，确保issuer正确
        location = /.well-known/openid-configuration {
            proxy_pass https://sys_api/.well-known/openid-configuration;
            
            # 动态修改返回的JSON中的URL
            proxy_set_header Accept-Encoding "";
            sub_filter_types application/json;
            sub_filter_once off;
            sub_filter 'https://sys-api:19902' 'https://$host:8001';
            sub_filter 'https://sys_api' 'https://$host:8001';
        }
        # 所有IdentityServer路由（无需/auth前缀）
        location / {
            proxy_pass https://sys_api;
            
            # HTTPS后端配置
            proxy_ssl_server_name on;
            proxy_ssl_verify      off;

            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_set_header X-Forwarded-Host $host:$server_port;
            proxy_set_header X-Forwarded-Port $server_port; # 有些情况下需要

            # 关键：重写后端返回的Location头（防止重定向到内部端口）
            proxy_redirect https://sys-api:19902/ https://$host:8001/;
        }
    }

    # -------------------------------
    # 2. Sys系统服务 (8000)
    # -------------------------------
    server {
        listen 8000 ssl;
        server_name 106.52.199.114;
        ssl_certificate /etc/nginx/certs/gateway.crt;
        ssl_certificate_key /etc/nginx/certs/gateway.key;
        ssl_protocols TLSv1.2 TLSv1.3;
        ssl_prefer_server_ciphers on;
        ssl_ciphers ECDHE-ECDSA-AES128-GCM-SHA256:ECDHE-RSA-AES128-GCM-SHA256:ECDHE-ECDSA-AES256-GCM-SHA384:ECDHE-RSA-AES256-GCM-SHA384:DHE-RSA-AES128-GCM-SHA256:DHE-RSA-AES256-GCM-SHA384;
        ssl_session_cache shared:SSL:10m;
        ssl_session_timeout 10m;
        ssl_verify_client off;  # ↓ 允许自签名证书
        ssl_verify_depth 0;
        # API路由
        location /api/sys/ {
            proxy_pass https://sys_api/api/;
            proxy_ssl_server_name on;
            proxy_ssl_verify off;
            proxy_set_header Authorization $http_authorization;
        }
                # 认证服务代理
        location /auth/ {
            # 关键 1: 移除路径中的 /auth/ 前缀
            proxy_pass https://sys_api/;   # 末尾的 / 确保路径替换

            proxy_ssl_server_name on;
            proxy_ssl_session_reuse off;
            proxy_ssl_verify off;
            # 关键 2: 覆盖 Host 头，模拟 Vite 的 changeOrigin=true
            proxy_set_header Host $proxy_host;  # 设置为目标地址的 Host 

            proxy_set_header X-Forwarded-Proto $scheme;
            proxy_set_header X-Forwarded-Host $host:$server_port;
            proxy_set_header Authorization $http_authorization;  # 传递 Authorization 头
            # 其他标准代理头
            proxy_set_header X-Real-IP $remote_addr;
            proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;

            # 关键 4: 重写后端返回的 Location 头（解决重定向端口丢失）
            proxy_redirect https://sys_api:19902/ http://$host:$server_port/auth/;
            proxy_redirect https://sys_api/ http://$host:$server_port/auth/;
        }
        location /connect/ {
            # 关键 1: 移除路径中的 /auth/ 前缀
            proxy_pass https://sys_api/;   # 末尾的 / 确保路径替换

            proxy_ssl_server_name on;
            proxy_ssl_session_reuse off;
            proxy_ssl_verify off;
            # 关键 2: 覆盖 Host 头，模拟 Vite 的 changeOrigin=true
            proxy_set_header Host $proxy_host;  # 设置为目标地址的 Host 

            proxy_set_header X-Forwarded-Proto $scheme;
            proxy_set_header X-Forwarded-Host $host:$server_port;
            proxy_set_header Authorization $http_authorization;  # 传递 Authorization 头
            # 其他标准代理头
            proxy_set_header X-Real-IP $remote_addr;
            proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;

            # 关键 4: 重写后端返回的 Location 头（解决重定向端口丢失）
            proxy_redirect https://sys_api:19902/ http://$host:$server_port/auth/;
            proxy_redirect https://sys_api/ http://$host:$server_port/auth/;
        }

        location = /auth/.well-known/openid-configuration {
            proxy_pass https://sys_api/.well-known/openid-configuration;
            
            # 动态修改返回的JSON中的URL
            proxy_set_header Accept-Encoding "";
            sub_filter_types application/json;
            sub_filter_once off;
            sub_filter 'https://sys-api:19902' 'https://$host:8001';
            sub_filter 'https://sys_api' 'https://$host:8001';
        }
        # UI前端路由
        location / {
            proxy_pass http://sys_ui;
            proxy_set_header Host $host;
        }
    }

    
    # -------------------------------
    # 3. Lmg系统服务 (8002)
    # -------------------------------
    server {
        listen 8002 ssl;
        server_name 106.52.199.114;
        ssl_certificate /etc/nginx/certs/gateway.crt;
        ssl_certificate_key /etc/nginx/certs/gateway.key;
        ssl_protocols TLSv1.2 TLSv1.3;
        ssl_prefer_server_ciphers on;
        ssl_ciphers ECDHE-ECDSA-AES128-GCM-SHA256:ECDHE-RSA-AES128-GCM-SHA256:ECDHE-ECDSA-AES256-GCM-SHA384:ECDHE-RSA-AES256-GCM-SHA384:DHE-RSA-AES128-GCM-SHA256:DHE-RSA-AES256-GCM-SHA384;
        ssl_session_cache shared:SSL:10m;
        ssl_session_timeout 10m;
        ssl_verify_client off;  # ↓ 允许自签名证书
        ssl_verify_depth 0;
        # API路由
        location /api/lmg/ {
            proxy_pass https://lmg_api/api/;
            proxy_ssl_server_name on;
            proxy_ssl_verify off;
            proxy_set_header Authorization $http_authorization;
        }

        # UI前端路由（基础路径需配置为/lmg/）
        location /lmg/ {
            proxy_pass http://lmg_ui/;  # 注意末尾的/
            proxy_set_header Host $host;
        }

        location /auth/ {
            # 关键 1: 移除路径中的 /auth/ 前缀
            proxy_pass https://sys_api/;   # 末尾的 / 确保路径替换

            proxy_ssl_server_name on;
            proxy_ssl_session_reuse off;
            proxy_ssl_verify off;
            # 关键 2: 覆盖 Host 头，模拟 Vite 的 changeOrigin=true
            proxy_set_header Host $proxy_host;  # 设置为目标地址的 Host 

            proxy_set_header X-Forwarded-Proto $scheme;
            proxy_set_header X-Forwarded-Host $host:$server_port;
            proxy_set_header Authorization $http_authorization;  # 传递 Authorization 头
            # 其他标准代理头
            proxy_set_header X-Real-IP $remote_addr;
            proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;

            # 关键 4: 重写后端返回的 Location 头（解决重定向端口丢失）
            proxy_redirect https://sys_api:19902/ http://$host:$server_port/auth/;
            proxy_redirect https://sys_api/ http://$host:$server_port/auth/;
        }
        location = /auth/.well-known/openid-configuration {
            proxy_pass https://sys_api/.well-known/openid-configuration;
            
            # 动态修改返回的JSON中的URL
            proxy_set_header Accept-Encoding "";
            sub_filter_types application/json;
            sub_filter_once off;
            sub_filter 'https://sys-api:19902' 'https://$host:8001';
            sub_filter 'https://sys_api' 'https://$host:8001';
        }
        location /api/sys/ {
            proxy_pass https://sys_api/api/;
            proxy_ssl_server_name on;
            proxy_ssl_verify off;
            proxy_set_header Authorization $http_authorization;
        }

        # 根路径重定向到Lmg UI（可选）
        location = / {
            return 301 /lmg/;
        }
    }
}