server {
    listen 80;
    server_name localhost;

    location / {
        root /usr/share/nginx/html;
        index index.html index.htm;
        try_files $uri $uri/ /index.html;
    }

    location /api/ {
        # Используем переменную и resolver, чтобы nginx не падал при старте,
        # если хост 'api' еще не доступен или находится в другой сети Docker.
        resolver 127.0.0.11 valid=30s;
        set $backend_api api;
        proxy_pass http://$backend_api:8000;
        
        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 $http_x_forwarded_proto;
        proxy_read_timeout 300;
        proxy_connect_timeout 300;
        proxy_send_timeout 300;
    }

    location ~ ^/(docs|redoc|openapi.json) {
        resolver 127.0.0.11 valid=30s;
        set $backend_api api;
        proxy_pass http://$backend_api:8000;
        
        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 $http_x_forwarded_proto;
    }

    # Кеширование статики
    location /assets/ {
        root /usr/share/nginx/html;
        expires 1y;
        add_header Cache-Control "public, no-transform";
    }

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