# ServiceManager Nginx Configuration

upstream backend_api {
    server backend:8000;
    keepalive 32;
}

upstream client_frontend {
    server frontend-client:3000;
    keepalive 32;
}

upstream internal_frontend {
    server frontend-internal:3000;
    keepalive 32;
}

# Client Portal (clientes.servicemanager.local o puerto 3000)
server {
    listen 80;
    server_name clientes.servicemanager.local;
    
    location / {
        proxy_pass http://client_frontend;
        proxy_http_version 1.1;
        proxy_set_header Upgrade $http_upgrade;
        proxy_set_header Connection 'upgrade';
        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_cache_bypass $http_upgrade;
        proxy_read_timeout 86400;
    }
}

# Internal Portal (admin.servicemanager.local o puerto 3001)
server {
    listen 80;
    server_name admin.servicemanager.local;
    
    location / {
        proxy_pass http://internal_frontend;
        proxy_http_version 1.1;
        proxy_set_header Upgrade $http_upgrade;
        proxy_set_header Connection 'upgrade';
        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_cache_bypass $http_upgrade;
        proxy_read_timeout 86400;
    }
}

# API Backend (api.servicemanager.local o puerto 8000)
server {
    listen 80;
    server_name api.servicemanager.local;

    # API endpoints con rate limiting
    location /v1/ {
        limit_req zone=api burst=20 nodelay;
        
        proxy_pass http://backend_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;
        proxy_read_timeout 300;
        proxy_connect_timeout 30;
        proxy_send_timeout 300;
    }

    # Auth endpoints con rate limiting más estricto
    location /v1/auth/ {
        limit_req zone=login burst=10 nodelay;
        
        proxy_pass http://backend_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;
    }

    # Health check
    location /health {
        proxy_pass http://backend_api;
        access_log off;
    }

    # OpenAPI docs
    location ~ ^/(docs|openapi\.json|redoc) {
        proxy_pass http://backend_api;
        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;
    }

    # Static files (uploads)
    location /uploads/ {
        alias /var/www/uploads/;
        expires 1h;
        add_header Cache-Control "public, immutable";
        
        # Validar que el usuario tenga permisos (implementar en backend)
        auth_request /auth;
    }

    # Auth subrequest para archivos protegidos
    location = /auth {
        internal;
        proxy_pass http://backend_api/v1/auth/validate;
        proxy_pass_request_body off;
        proxy_set_header Content-Length "";
        proxy_set_header X-Original-URI $request_uri;
    }
}

# Default server (localhost - desarrollo)
server {
    listen 80 default_server;
    server_name _;

    # Redirect to appropriate frontend based on path
    location /admin {
        return 301 http://localhost:3001/;
    }

    location /api/ {
        proxy_pass http://backend_api/;
        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 / {
        return 301 http://localhost:3000/;
    }
}