# ================================================
# Urban Lifeline - 站点配置 (All-in-One 模式)
# ================================================

# 上游服务定义 - 后端 All-in-One 容器
upstream gateway {
    server urban-lifeline-serv:8080;
    keepalive 32;
}

# 上游服务定义 - 前端 All-in-One 容器
upstream shared {
    server urban-lifeline-web:8000;
}

upstream platform {
    server urban-lifeline-web:8001;
}

upstream workcase-web {
    server urban-lifeline-web:8002;
}

upstream bidding-web {
    server urban-lifeline-web:8003;
}

upstream workcase-wechat {
    server urban-lifeline-web:8004;
}

# HTTP 重定向到 HTTPS
server {
    listen 80;
    server_name localhost;
    return 301 https://$host$request_uri;
}

# HTTPS 服务
server {
    listen 443 ssl;
    server_name localhost;

    # SSL 证书配置
    ssl_certificate /etc/nginx/ssl/server.crt;
    ssl_certificate_key /etc/nginx/ssl/server.key;
    
    # SSL 安全配置
    ssl_protocols TLSv1.2 TLSv1.3;
    ssl_ciphers ECDHE-RSA-AES128-GCM-SHA256:ECDHE-RSA-AES256-GCM-SHA384:ECDHE-RSA-CHACHA20-POLY1305;
    ssl_prefer_server_ciphers on;
    ssl_session_cache shared:SSL:10m;
    ssl_session_timeout 10m;

    # 健康检查端点
    location /health {
        access_log off;
        return 200 "healthy\n";
        add_header Content-Type text/plain;
    }

    # ====================== 前端应用代理 ======================
    
    # Shared 公共模块 (Module Federation 远程模块)
    location /shared/ {
        proxy_pass http://shared/;
        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;
        
        # 允许跨域 (Module Federation 需要)
        add_header Access-Control-Allow-Origin *;
        add_header Access-Control-Allow-Methods "GET, OPTIONS";
        add_header Access-Control-Allow-Headers "Origin, Content-Type, Accept";
    }

    # Platform 管理平台
    location /platform/ {
        # 优先尝试文件，如果不存在则返回 index.html（SPA history 模式）
        proxy_pass http://platform/;
        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;
        
        # SPA fallback - 404时返回index.html让Vue Router处理
        proxy_intercept_errors on;
        error_page 404 = @platform_fallback;
    }
    
    location @platform_fallback {
        # 重写为根路径的 index.html，保留原始 URI 让前端路由处理
        rewrite ^/platform/(.*)$ /platform/index.html break;
        proxy_pass http://platform;
        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;
    }

    # Workcase 工单系统 PC端
    location /workcase/ {
        proxy_pass http://workcase-web/;
        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;
        
        # SPA fallback - 404时返回index.html让Vue Router处理
        proxy_intercept_errors on;
        error_page 404 = @workcase_fallback;
    }
    
    location @workcase_fallback {
        # 重写为根路径的 index.html，保留原始 URI 让前端路由处理
        rewrite ^/workcase/(.*)$ /workcase/index.html break;
        proxy_pass http://workcase-web;
        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;
    }

    # Bidding 招标系统
    location /bidding/ {
        proxy_pass http://bidding-web/;
        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;
    }

    # Workcase 工单系统微信端
    location /workcase-wechat/ {
        proxy_pass http://workcase-wechat/;
        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;
    }

    # 默认首页（重定向到 platform）
    location = / {
        return 302 /platform/;
    }

    # ====================== API 代理 ======================
    
    # 后端 API 代理
    location /urban-lifeline/ {
        proxy_pass http://gateway/;
        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;
        
        # WebSocket 支持
        proxy_set_header Upgrade $http_upgrade;
        proxy_set_header Connection "upgrade";
        
        # 超时设置
        proxy_connect_timeout 60s;
        proxy_send_timeout 60s;
        proxy_read_timeout 60s;
    }

    # ====================== 错误页面 ======================
    error_page 500 502 503 504 /50x.html;
    location = /50x.html {
        root /usr/share/nginx/html;
    }
}
