# insight.conf — Managed by Ansible (INSIGHT-Infra)
# Reverse Proxy: WEB01 → APS01

upstream insight_api {
    server {{ aps01_ip | default('172.20.10.21') }}:3000;
    keepalive 32;
}

server {
    listen 80;
    server_name {{ nginx_server_name | default('_') }};

    # React SPA (Static Files)
    root {{ nginx_webroot | default('/var/www/insight') }};
    index index.html;

    # API Proxy → APS01
    location /api/ {
        proxy_pass http://insight_api;
        proxy_http_version 1.1;
        proxy_set_header Connection "";
        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_connect_timeout 30s;
        proxy_send_timeout 60s;
        proxy_read_timeout 60s;

        proxy_buffer_size 4k;
        proxy_buffers 8 4k;
    }

    # WebSocket (für NestJS Events / Pub-Sub)
    location /socket.io/ {
        proxy_pass http://insight_api;
        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;
    }

    # React SPA Fallback (client-side routing)
    location / {
        try_files $uri $uri/ /index.html;

        # Cache Static Assets
        location ~* \.(js|css|png|jpg|jpeg|gif|ico|svg|woff|woff2|ttf|eot)$ {
            expires 1y;
            add_header Cache-Control "public, immutable";
        }
    }

    # Health Check
    location /health {
        access_log off;
        return 200 "OK\n";
        add_header Content-Type text/plain;
    }
}