server {
    listen 80;
    server_name _;

    client_max_body_size 50M;

    # ===== Gateway 자체 페이지 (포털, 로그인) =====
    root /usr/share/nginx/html;

    # 로그인 페이지
    location = /login {
        try_files /login.html =404;
    }

    # 공유 JS/CSS (nav-header 등)
    location /shared/ {
        alias /usr/share/nginx/html/shared/;
    }

    # ===== SSO Auth API =====
    location /auth/ {
        proxy_pass http://sso-auth:3000/api/auth/;
        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;
    }

    # ===== System 1 API 프록시 =====
    location /api/ {
        proxy_pass http://system1-api:3005/api/;
        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;
    }

    # ===== System 1 업로드 파일 =====
    location /uploads/ {
        proxy_pass http://system1-api:3005/uploads/;
        proxy_set_header Host $host;
        proxy_set_header X-Real-IP $remote_addr;
    }

    # ===== System 1 FastAPI Bridge =====
    location /fastapi/ {
        proxy_pass http://system1-fastapi:8000/;
        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;
    }

    # ===== System 1 Web (나머지 모든 경로) =====
    location / {
        proxy_pass http://system1-web:80;
        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;
    }

    # ===== Health Check =====
    location /health {
        return 200 '{"status":"ok","service":"gateway"}';
        add_header Content-Type application/json;
    }
}