# Spark HTTP — sparkapi.wyrs365.com
# Public :443 is stream ssl_preread (see stream.d/spark-sni.conf).
# This vhost terminates TLS on loopback :8443 (PROXY protocol from stream).

upstream spark_http {
    server 127.0.0.1:18080;
    keepalive 16;
}

server {
    listen 80;
    listen [::]:80;
    server_name sparkapi.wyrs365.com;

    location /.well-known/acme-challenge/ {
        root /var/www/certbot;
    }

    location / {
        return 301 https://$host$request_uri;
    }
}

server {
    listen 80;
    listen [::]:80;
    server_name sparkim.wyrs365.com;

    location /.well-known/acme-challenge/ {
        root /var/www/certbot;
    }

    location / {
        return 404;
    }
}

server {
    listen 127.0.0.1:8443 ssl proxy_protocol;
    listen [::1]:8443 ssl proxy_protocol;
    http2 on;
    server_name sparkapi.wyrs365.com;

    ssl_certificate     /etc/letsencrypt/live/sparkapi.wyrs365.com/fullchain.pem;
    ssl_certificate_key /etc/letsencrypt/live/sparkapi.wyrs365.com/privkey.pem;
    ssl_session_timeout 1d;
    ssl_session_cache shared:SparkSSL:10m;

    add_header Strict-Transport-Security "max-age=31536000; includeSubDomains" always;
    add_header X-Content-Type-Options nosniff always;

    client_max_body_size 32m;
    proxy_connect_timeout 5s;
    proxy_send_timeout 60s;
    proxy_read_timeout 60s;
    proxy_http_version 1.1;
    proxy_set_header Connection "";

    location /readyz {
        allow 127.0.0.1;
        allow ::1;
        deny all;
        proxy_pass http://spark_http;
        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 https;
    }

    # Brand icons (no app rebuild required)
    location = /favicon.ico {
        alias /var/www/sparkapi-brand/favicon.ico;
        add_header Cache-Control "public, max-age=604800";
        access_log off;
    }
    location = /apple-touch-icon.png {
        alias /var/www/sparkapi-brand/apple-touch-icon.png;
        add_header Cache-Control "public, max-age=604800";
        access_log off;
    }
    location ^~ /brand/ {
        alias /var/www/sparkapi-brand/;
        add_header Cache-Control "public, max-age=604800";
        access_log off;
    }

    location / {
        proxy_pass http://spark_http;
        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 https;
        # Inject favicon + header logo until next spark-server image ships docs HTML.
        sub_filter_once off;
        sub_filter_types text/html;
        sub_filter '<head>' '<head><link rel="icon" href="/favicon.ico?v=20260924-flames" sizes="any"/><link rel="apple-touch-icon" href="/apple-touch-icon.png?v=20260924-flames"/>';
        sub_filter '<strong>Spark IM</strong>' '<a href="/docs" style="display:inline-flex;align-items:center;gap:8px;color:inherit;text-decoration:none"><img src="/brand/logo.png?v=20260924-flames" width="28" height="28" alt="" style="border-radius:6px"/><strong>Spark IM</strong></a>';
    }
}