# ============================================================================
# PYRE / Prometheus Protocol — nginx virtual host for feedthepyre.com
# ----------------------------------------------------------------------------
# Install path:   /etc/nginx/sites-available/feedthepyre.com
#                 (the provision script symlinks this into sites-enabled/)
#
# TLS:            Managed by certbot. Run `certbot --nginx` AFTER this config is
#                 installed — it will inject the listen 443 ssl server block,
#                 the ssl_certificate / ssl_certificate_key lines, and the
#                 HTTP->HTTPS redirect automatically. Do NOT hand-edit those in.
#
# App ports (see docs/PYRE_MVP_DESIGN.md §11 and .env.example):
#                 web (Next.js)  -> 127.0.0.1:3000   (WEB_PORT)
#                 api (Fastify)  -> 127.0.0.1:4000   (API_PORT)
#
# Current behaviour: serves the static status dashboard from
#                 /var/www/feedthepyre/status. The reverse-proxy blocks below
#                 are commented out until the apps are deployed.
# ============================================================================

server {
    listen 80;
    listen [::]:80;
    server_name feedthepyre.com www.feedthepyre.com;

    # --- Static status site (current site root) -----------------------------
    root /var/www/feedthepyre/status;
    index index.html;

    # --- Logging ------------------------------------------------------------
    access_log /var/log/nginx/feedthepyre.access.log;
    error_log  /var/log/nginx/feedthepyre.error.log;

    # --- ACME HTTP-01 challenge --------------------------------------------
    # Explicit so certbot's HTTP-01 validation works even before its --nginx
    # tweaks are applied. ^~ ensures this wins over the regex/proxy locations.
    location ^~ /.well-known/acme-challenge/ {
        root /var/www/feedthepyre/status;
        allow all;
    }

    # --- Basic hardening ----------------------------------------------------
    # gzip for text-ish content types.
    gzip on;
    gzip_comp_level 5;
    gzip_min_length 256;
    gzip_proxied any;
    gzip_vary on;
    gzip_types
        text/plain
        text/css
        text/xml
        text/javascript
        application/javascript
        application/json
        application/xml
        application/rss+xml
        image/svg+xml;

    # NOTE: `server_tokens off;` is intentionally NOT set here — it belongs in
    # the http{} block of /etc/nginx/nginx.conf so it applies globally. Set it
    # there once rather than duplicating it per-vhost.

    # --- Site root ----------------------------------------------------------
    # Serve the static status dashboard for now.
    #
    # LATER: when apps/web (Next.js) is deployed, switch this location from the
    # static status page to a reverse proxy. Replace the try_files body with:
    #
    #     proxy_pass http://127.0.0.1:3000;
    #     proxy_http_version 1.1;
    #     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_set_header Upgrade           $http_upgrade;
    #     proxy_set_header Connection        $connection_upgrade;
    #
    location / {
        try_files $uri $uri/ /index.html;
    }

    # ------------------------------------------------------------------------
    # REVERSE-PROXY BLOCKS — enable when apps are running
    # ------------------------------------------------------------------------
    # Uncomment the /api/ block below once apps/api (Fastify, port 4000) is up.
    # The trailing slash on proxy_pass strips the /api/ prefix so the backend
    # sees /scan, /receipt, etc.
    #
    # location /api/ {
    #     proxy_pass http://127.0.0.1:4000/;
    #     proxy_http_version 1.1;
    #     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_set_header Upgrade           $http_upgrade;
    #     proxy_set_header Connection        $connection_upgrade;
    # }
    #
    # The websocket Upgrade/Connection headers above rely on a $connection_upgrade
    # map. Add this once in the http{} block of /etc/nginx/nginx.conf:
    #
    #     map $http_upgrade $connection_upgrade {
    #         default upgrade;
    #         ''      close;
    #     }
    # ------------------------------------------------------------------------
}