# zammad.gisportal.id → Zammad (Docker)
# Deploy: /etc/nginx/conf.d/production/zammad.conf on 10.100.1.24
#
# NOTE: Adjust upstream port after docker compose up (default zammad-docker-compose exposes 8080)

upstream zammad_backend {
    server 127.0.0.1:8093;
    keepalive 8;
}

limit_req_zone $binary_remote_addr zone=zammad_general:10m rate=30r/s;

server {
    listen 80;
    server_name zammad.gisportal.id;
    return 301 https://zammad.gisportal.id$request_uri;
}

server {
    listen 443 ssl;
    server_name zammad.gisportal.id;
    include /etc/nginx/conf.d/ssl.conf;

    add_header X-Frame-Options "SAMEORIGIN" always;
    add_header X-Content-Type-Options "nosniff" always;
    add_header Referrer-Policy "strict-origin-when-cross-origin" always;
    add_header Strict-Transport-Security "max-age=31536000; includeSubDomains" always;

    client_max_body_size 50m;

    # CORS for FE PWA my.gisportal.id — /api/ only (adjust after token flow defined)
    location /api/ {
        if ($http_origin = "https://my.gisportal.id") {
            add_header Access-Control-Allow-Origin "https://my.gisportal.id" always;
            add_header Access-Control-Allow-Methods "GET, POST, PUT, PATCH, DELETE, OPTIONS" always;
            add_header Access-Control-Allow-Headers "Authorization, Content-Type, X-Requested-With" always;
            add_header Access-Control-Max-Age 3600 always;
        }

        if ($request_method = OPTIONS) {
            add_header Access-Control-Allow-Origin "https://my.gisportal.id" always;
            add_header Access-Control-Allow-Methods "GET, POST, PUT, PATCH, DELETE, OPTIONS" always;
            add_header Access-Control-Allow-Headers "Authorization, Content-Type, X-Requested-With" always;
            add_header Access-Control-Max-Age 3600 always;
            add_header Content-Length 0;
            add_header Content-Type text/plain;
            return 204;
        }

        limit_req zone=zammad_general burst=50 nodelay;

        proxy_pass http://zammad_backend;
        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 X-Forwarded-Host $host;
        proxy_read_timeout 120s;
    }

    location / {
        limit_req zone=zammad_general burst=50 nodelay;

        proxy_pass http://zammad_backend;
        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 X-Forwarded-Host $host;
        proxy_read_timeout 120s;

        # WebSocket (Zammad live updates)
        proxy_set_header Upgrade $http_upgrade;
        proxy_set_header Connection "upgrade";
    }
}