# {{ ansible_managed }}
# HTTPS config for api.performancewest.net

# Rate limiting zone
limit_req_zone $binary_remote_addr zone=api_limit:10m rate=10r/s;

# Redirect HTTP -> HTTPS
server {
    listen 80;
    server_name api.performancewest.net;

    location /.well-known/acme-challenge/ {
        root {{ certbot_webroot }};
    }

    location / {
        return 301 https://api.performancewest.net$request_uri;
    }
}

# API server
server {
    listen 443 ssl;
    http2 on;
    server_name api.performancewest.net;

    ssl_certificate     /etc/letsencrypt/live/api.performancewest.net/fullchain.pem;
    ssl_certificate_key /etc/letsencrypt/live/api.performancewest.net/privkey.pem;
    ssl_protocols       TLSv1.2 TLSv1.3;
    ssl_ciphers         HIGH:!aNULL:!MD5;
    ssl_prefer_server_ciphers on;
    ssl_session_cache   shared:SSL:10m;
    ssl_session_timeout 10m;

    add_header Strict-Transport-Security "max-age=31536000; includeSubDomains; preload" always;

    include /etc/nginx/snippets/pw-security.conf;

    # CORS headers
    add_header Access-Control-Allow-Origin "https://performancewest.net" always;
    add_header Access-Control-Allow-Methods "GET, POST, PUT, DELETE, OPTIONS" always;
    add_header Access-Control-Allow-Headers "Authorization, Content-Type, Accept" always;
    add_header Access-Control-Max-Age 86400 always;

    location / {
        # Handle CORS preflight
        if ($request_method = OPTIONS) {
            add_header Access-Control-Allow-Origin "https://performancewest.net";
            add_header Access-Control-Allow-Methods "GET, POST, PUT, DELETE, OPTIONS";
            add_header Access-Control-Allow-Headers "Authorization, Content-Type, Accept";
            add_header Access-Control-Max-Age 86400;
            add_header Content-Length 0;
            add_header Content-Type text/plain;
            return 204;
        }

        # Rate limiting
        limit_req zone=api_limit burst=20 nodelay;
        limit_req_status 429;

        proxy_pass http://127.0.0.1:{{ api_port }};
        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_connect_timeout 10s;
        proxy_send_timeout 30s;
        proxy_read_timeout 30s;
    }

    location /.well-known/acme-challenge/ {
        root {{ certbot_webroot }};
    }
}