limit_req_zone $binary_remote_addr zone=goodwalk_limit:10m rate=20r/s;

server {
    listen 80;
    server_name goodwalk.co.nz www.goodwalk.co.nz;

    location /.well-known/acme-challenge/ {
        root /var/www/certbot;
        try_files $uri =404;
    }

    location / {
        return 301 https://www.goodwalk.co.nz$request_uri;
    }
}

server {
    listen 80;
    server_name onboarding.goodwalk.co.nz;

    location /.well-known/acme-challenge/ {
        root /var/www/certbot;
        try_files $uri =404;
    }

    location / {
        return 301 https://onboarding.goodwalk.co.nz$request_uri;
    }
}

server {
    listen 443 ssl;
    server_name goodwalk.co.nz;

    ssl_certificate     /etc/letsencrypt/live/goodwalk.co.nz/fullchain.pem;
    ssl_certificate_key /etc/letsencrypt/live/goodwalk.co.nz/privkey.pem;

    return 301 https://www.goodwalk.co.nz$request_uri;
}

server {
    listen 443 ssl;
    server_name www.goodwalk.co.nz;

    ssl_certificate     /etc/letsencrypt/live/goodwalk.co.nz/fullchain.pem;
    ssl_certificate_key /etc/letsencrypt/live/goodwalk.co.nz/privkey.pem;

    ssl_protocols TLSv1.2 TLSv1.3;
    ssl_ciphers ECDHE-ECDSA-AES128-GCM-SHA256:ECDHE-RSA-AES128-GCM-SHA256:ECDHE-ECDSA-AES256-GCM-SHA384:ECDHE-RSA-AES256-GCM-SHA384;
    ssl_prefer_server_ciphers off;
    ssl_session_cache shared:SSL:10m;
    ssl_session_timeout 1d;
    ssl_session_tickets off;

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

    gzip on;
    gzip_vary on;
    gzip_proxied any;
    gzip_comp_level 6;
    gzip_types text/plain text/css text/xml application/json application/javascript application/xml+rss image/svg+xml;

    # Re-resolve Docker service/container names after container rebuilds so
    # nginx does not keep stale upstream IPs in memory.
    resolver 127.0.0.11 ipv6=off valid=30s;

    # Maintenance mode: when /etc/nginx/conf.d/maintenance.flag exists,
    # serve the static "be right back" page with a 503 status. The flag is
    # toggled by the deploy script (touch / rm) without reloading nginx.
    error_page 503 /maintenance.html;

    location = /maintenance.html {
        root /var/www/maintenance;
        internal;
        add_header Cache-Control "no-store" always;
    }

    # Static assets used only by the maintenance page (logo, etc.). Served
    # from a dedicated bind mount so they remain reachable while the
    # SvelteKit app is down and do not collide with any other site's html dir.
    location /m/ {
        root /var/www/maintenance;
        access_log off;
        add_header Cache-Control "public, max-age=3600" always;
    }

    location ~* /\.(git|env|htaccess) {
        deny all;
    }

    location = /xmlrpc.php {
        deny all;
    }

    location = /wp-login.php {
        return 404;
    }

    location /api/submit {
        if (-f /etc/nginx/conf.d/maintenance.flag) {
            return 503;
        }

        set $goodwalk_mail_api goodwalk_svelte_mail_api:8000;
        limit_req zone=goodwalk_limit burst=10 nodelay;
        proxy_pass http://$goodwalk_mail_api/submit;
        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;
    }

    location / {
        if (-f /etc/nginx/conf.d/maintenance.flag) {
            return 503;
        }

        set $goodwalk_frontend goodwalk_svelte_app:3000;
        proxy_pass http://$goodwalk_frontend;
        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 "upgrade";
    }
}

server {
    listen 443 ssl;
    server_name onboarding.goodwalk.co.nz;

    ssl_certificate     /etc/letsencrypt/live/onboarding.goodwalk.co.nz/fullchain.pem;
    ssl_certificate_key /etc/letsencrypt/live/onboarding.goodwalk.co.nz/privkey.pem;

    ssl_protocols TLSv1.2 TLSv1.3;
    ssl_ciphers ECDHE-ECDSA-AES128-GCM-SHA256:ECDHE-RSA-AES128-GCM-SHA256:ECDHE-ECDSA-AES256-GCM-SHA384:ECDHE-RSA-AES256-GCM-SHA384;
    ssl_prefer_server_ciphers off;
    ssl_session_cache shared:SSL:10m;
    ssl_session_timeout 1d;
    ssl_session_tickets off;

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

    gzip on;
    gzip_vary on;
    gzip_proxied any;
    gzip_comp_level 6;
    gzip_types text/plain text/css text/xml application/json application/javascript application/xml+rss image/svg+xml;

    resolver 127.0.0.11 ipv6=off valid=30s;

    location ~* /\.(git|env|htaccess) {
        deny all;
    }

    location /api/onboarding-submit {
        if (-f /etc/nginx/conf.d/maintenance.flag) {
            return 503;
        }

        set $goodwalk_mail_api goodwalk_svelte_mail_api:8000;
        limit_req zone=goodwalk_limit burst=10 nodelay;
        proxy_pass http://$goodwalk_mail_api/onboarding-submit;
        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;
    }

    location /api/auth/ {
        set $goodwalk_mail_api goodwalk_svelte_mail_api:8000;
        limit_req zone=goodwalk_limit burst=10 nodelay;
        rewrite ^/api/auth/(.*)$ /auth/$1 break;
        proxy_pass http://$goodwalk_mail_api;
        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;
    }

    location / {
        if (-f /etc/nginx/conf.d/maintenance.flag) {
            return 503;
        }

        set $goodwalk_frontend goodwalk_svelte_app:3000;
        proxy_pass http://$goodwalk_frontend;
        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 "upgrade";
    }
}
