# DEV reverse proxy — single entrypoint at http://localhost:80.
#   /            -> webui rsbuild dev server (with HMR websocket)
#   /rsbuild-hmr -> webui HMR websocket channel
#   /api/...     -> backend API
#   /health...   -> backend health/readiness probes
#
# This is the DEV topology only. Production gets its own proxy in the future
# prod compose (the webui PROD image already self-serves static assets).

# WebSocket upgrade plumbing.
map $http_upgrade $connection_upgrade {
    default upgrade;
    ''      close;
}

upstream webui_dev { server webui:3000; }
upstream api_dev   { server api:8000; }

server {
    listen 80;
    server_name localhost;

    # Large media uploads — don't choke on big files.
    client_max_body_size 0;

    # ---- backend -------------------------------------------------------
    location /api/ {
        proxy_pass http://api_dev;
        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_http_version 1.1;
        proxy_buffering off;
    }

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

    # ---- rsbuild HMR websocket ----------------------------------------
    location /rsbuild-hmr {
        proxy_pass http://webui_dev;
        proxy_http_version 1.1;
        proxy_set_header Upgrade    $http_upgrade;
        proxy_set_header Connection $connection_upgrade;
        proxy_set_header Host       $host;
    }

    # ---- webui dev server (catch-all) ---------------------------------
    location / {
        proxy_pass http://webui_dev;
        proxy_http_version 1.1;
        proxy_set_header Upgrade    $http_upgrade;
        proxy_set_header Connection $connection_upgrade;
        proxy_set_header Host       $host;
        proxy_set_header X-Real-IP  $remote_addr;
    }
}