upstream studio_backend {
    server 127.0.0.1:8001;
}

upstream analysis_backend {
    server 127.0.0.1:8002;
}

server {
    listen 80;
    server_name sensorflow.wael.bot;
    client_max_body_size 100M;

    # Redirect HTTP to HTTPS (when cert is ready)
    # return 301 https://$server_name$request_uri;

    # Sensorflow Studio API
    location /api/studio/ {
        proxy_pass http://studio_backend/;
        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 300s;
        proxy_connect_timeout 300s;
    }

    # Accident Analysis API
    location /api/analysis/ {
        proxy_pass http://analysis_backend/;
        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 300s;
        proxy_connect_timeout 300s;
    }

    # WebSocket support for Accident Analysis
    location /ws/ {
        proxy_pass http://analysis_backend/ws/;
        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_read_timeout 86400;
    }

    # React Frontend
    location / {
        root /opt/sensorflow/studio/dist;
        try_files $uri $uri/ /index.html;
        expires 1h;
        add_header Cache-Control "public, max-age=3600";
    }

    # Health checks
    location /health/studio {
        proxy_pass http://studio_backend/docs;
        access_log off;
    }

    location /health/analysis {
        proxy_pass http://analysis_backend/docs;
        access_log off;
    }
}