server {
    listen 7860;
    server_name _;

    # ── Backend API endpoints (specific paths only) ──
    # These are the FastAPI endpoints that the frontend proxy routes call

    location /analyze {
        proxy_pass http://127.0.0.1:8000;
        proxy_set_header Host $host;
        proxy_set_header X-Real-IP $remote_addr;
        proxy_read_timeout 120s;
        client_max_body_size 20M;
    }

    location /mock-analyze {
        proxy_pass http://127.0.0.1:8000;
        proxy_set_header Host $host;
    }

    location /chat {
        proxy_pass http://127.0.0.1:8000;
        proxy_set_header Host $host;
        proxy_set_header X-Real-IP $remote_addr;
        proxy_read_timeout 60s;
    }

    location /upload_and_chat {
        proxy_pass http://127.0.0.1:8000;
        proxy_set_header Host $host;
        proxy_set_header X-Real-IP $remote_addr;
        proxy_read_timeout 120s;
        client_max_body_size 20M;
    }

    # Backend nutrition/exercise API (POST only, called by Next.js proxy routes)
    location /nutrition/ {
        proxy_pass http://127.0.0.1:8000;
        proxy_set_header Host $host;
    }

    location /exercise/ {
        proxy_pass http://127.0.0.1:8000;
        proxy_set_header Host $host;
    }

    location /docs {
        proxy_pass http://127.0.0.1:8000;
        proxy_set_header Host $host;
    }

    location /openapi.json {
        proxy_pass http://127.0.0.1:8000;
        proxy_set_header Host $host;
    }

    location /health {
        proxy_pass http://127.0.0.1:8000;
        proxy_set_header Host $host;
    }

    # ── Everything else goes to Next.js frontend ──
    location / {
        proxy_pass http://127.0.0.1:3000;
        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_cache_bypass $http_upgrade;
    }
}