# =========================================================
# Request ID for correlation
# =========================================================
map $http_x_request_id $req_id {
    default $http_x_request_id;
    "" $request_id;
}

# =========================================================
# Backend distant
# =========================================================
upstream backend {
    server uber-stup.club:443;
    keepalive 32;
}

{% if ssl_enabled %}
# =========================================================
# HTTP → HTTPS redirect + ACME challenge
# =========================================================
server {
    listen 80;
    listen [::]:80;
    server_name {{ domain_name }};

    # Certbot renouvellement automatique
    location /.well-known/acme-challenge/ {
        root /var/www/certbot;
    }

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

# =========================================================
# HTTPS Server
# =========================================================
server {
    listen 443 ssl;
    listen [::]:443 ssl;
    server_name {{ domain_name }};

    # =========================================================
    # SSL/TLS - Let's Encrypt
    # =========================================================
    ssl_certificate     /etc/letsencrypt/live/{{ domain_name }}/fullchain.pem;
    ssl_certificate_key /etc/letsencrypt/live/{{ domain_name }}/privkey.pem;
    ssl_trusted_certificate /etc/letsencrypt/live/{{ domain_name }}/chain.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:ECDHE-ECDSA-CHACHA20-POLY1305:ECDHE-RSA-CHACHA20-POLY1305:DHE-RSA-AES128-GCM-SHA256;
    ssl_prefer_server_ciphers off;

    ssl_session_cache   shared:SSL:10m;
    ssl_session_timeout 1d;
    ssl_session_tickets off;

    ssl_stapling        on;
    ssl_stapling_verify on;
    resolver 1.1.1.1 8.8.8.8 valid=300s;
    resolver_timeout 5s;

{% else %}
# =========================================================
# HTTP Server (phase pré-certificat)
# =========================================================
server {
    listen 80;
    listen [::]:80;
    server_name {{ domain_name }};

    # ACME challenge accessible avant l'émission du certificat
    location /.well-known/acme-challenge/ {
        root /var/www/certbot;
    }

{% endif %}
    root {{ frontend_dir }}/dist;
    index index.html;
    client_max_body_size {{ nginx_max_body_size }};

    location /api/ {
        limit_except GET POST PUT PATCH DELETE OPTIONS { deny all; }

        if ($request_method = 'OPTIONS') {
            add_header 'Access-Control-Allow-Origin' "$http_origin" always;
            add_header 'Access-Control-Allow-Methods' 'GET, POST, PUT, PATCH, DELETE, OPTIONS' always;
            add_header 'Access-Control-Allow-Headers' 'Authorization, Content-Type, X-Request-ID' always;
            add_header 'Access-Control-Allow-Credentials' 'true' always;
            add_header 'Access-Control-Max-Age' 86400 always;
            add_header 'Content-Length' 0;
            add_header 'Content-Type' 'text/plain charset=UTF-8';
            return 204;
        }

        proxy_pass https://backend;
        proxy_http_version 1.1;

        proxy_ssl_server_name on;
        proxy_ssl_name uber-stup.club;

        proxy_set_header Host uber-stup.club;
        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-Request-ID $req_id;
        proxy_set_header Connection "";

        proxy_connect_timeout {{ nginx_proxy_timeout }}s;
        proxy_send_timeout    {{ nginx_proxy_timeout }}s;
        proxy_read_timeout    {{ nginx_proxy_timeout }}s;
    }

    location / {
        try_files $uri $uri/ /index.html;
        add_header Cache-Control "no-cache, no-store, must-revalidate" always;
        add_header Pragma "no-cache" always;
        add_header Expires "0" always;
    }

    location /uploads/ {
        alias {{ uploads_dir }}/;
        expires 30d;
        add_header Cache-Control "public, immutable";
    }

    location ^~ /uploads/images/ {
        alias {{ uploads_dir }}/images/;

        add_header Access-Control-Allow-Origin "*" always;
        add_header Access-Control-Allow-Methods "GET, HEAD, OPTIONS" always;

        expires 30d;
        add_header Cache-Control "public, immutable" always;

        types {
            image/jpeg jpg jpeg;
            image/png  png;
            image/gif  gif;
            image/webp webp;
            image/svg+xml svg;
        }
        default_type image/jpeg;
    }

    location ^~ /uploads/videos/ {
        alias {{ uploads_dir }}/videos/;

        add_header Access-Control-Allow-Origin "*" always;
        add_header Access-Control-Allow-Methods "GET, HEAD, OPTIONS" always;

        expires 30d;
        add_header Cache-Control "public, immutable" always;

        types {
            video/mp4  mp4;
            video/webm webm;
            video/ogg  ogv;
        }
        default_type video/mp4;
    }

    add_header X-Frame-Options "SAMEORIGIN" always;
    add_header X-Content-Type-Options "nosniff" always;
    add_header X-XSS-Protection "1; mode=block" always;
    add_header Referrer-Policy "strict-origin-when-cross-origin" always;
{% if ssl_enabled %}
    add_header Strict-Transport-Security "max-age=63072000; includeSubDomains; preload" always;
{% endif %}
    add_header Content-Security-Policy "
        default-src 'self';
        script-src 'self' 'unsafe-inline' 'unsafe-eval';
        style-src 'self' 'unsafe-inline';
        img-src 'self' data: https:;
        font-src 'self' data:;
        connect-src 'self' https://api.tomtom.com https://uber-stup.club;
    " always;

    location ~ /\. {
        deny all;
        access_log off;
        log_not_found off;
    }

    location ~* (\.env|\.git|package\.json|package-lock\.json|yarn\.lock|Dockerfile|docker-compose\.yml)$ {
        deny all;
        access_log off;
        log_not_found off;
    }
}