# Определяем переменную для блокировки
map $remote_addr $blocked_ip {
    default 0;
    include /etc/nginx/blocked_ips.map;
}

# Определяем типы запросов
map $request_uri $request_type {
    default "general";

    # API endpoints
    ~*^/api/ "api";

    # Auth endpoints
    ~*^/(login|register|password-reset|auth|forgot-password|verify-email) "auth";

    # Admin endpoints
    ~*^/(admin|dashboard|cp|control-panel|manager) "admin";

    # Static files by extension
    ~*\.(jpg|jpeg|png|gif|ico|css|js|woff2?|ttf|eot|svg|pdf|zip|mp4|webm)$ "static";

    # Static files by directory
    ~*^/(storage|uploads|media|images|css|js|fonts)/ "static";
}

server {
    listen 80;
    server_name _;

    root /var/www/public;
    index index.php index.html;

    # ========== ОСНОВНЫЕ НАСТРОЙКИ БЕЗОПАСНОСТИ ==========

    # Защитные заголовки
    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;

    # ========== ПРЕДВАРИТЕЛЬНЫЕ ПРОВЕРКИ ==========

    # Если IP в черном списке
    if ($blocked_ip) {
        return 444;
    }

    # Блокировка пустых User-Agent
    if ($http_user_agent = "") {
        return 444;
    }

    # Блокировка нестандартных методов
    if ($request_method !~ ^(GET|HEAD|POST|OPTIONS)$) {
        return 444;
    }

    # ========== ГЛОБАЛЬНЫЕ ОГРАНИЧЕНИЯ ==========

    limit_conn conn_limit_per_ip 25;
    limit_req zone=req_limit_per_ip burst=30 delay=15;

    # ========== СТАТИЧЕСКИЕ ФАЙЛЫ ==========

    location ~* \.(jpg|jpeg|png|gif|ico|webp|avif)$ {
        limit_req zone=static_limit burst=100 nodelay;
        limit_conn conn_limit_per_ip 100;

        expires 1y;
        add_header Cache-Control "public, immutable";
        add_header Pragma "public";

        try_files $uri =404;

        access_log off;
        log_not_found off;
    }

    location ~* \.(css|js)$ {
        limit_req zone=static_limit burst=80 nodelay;
        limit_conn conn_limit_per_ip 80;

        expires 1y;
        add_header Cache-Control "public, immutable";
        add_header X-Content-Type-Options "nosniff";

        try_files $uri =404;

        access_log off;
    }

    location ~* \.(woff2?|ttf|eot|svg)$ {
        limit_req zone=static_limit burst=60 nodelay;
        limit_conn conn_limit_per_ip 60;

        expires 1y;
        add_header Cache-Control "public, immutable";
        add_header Access-Control-Allow-Origin "*";

        try_files $uri =404;

        access_log off;
    }

    # ========== API ENDPOINTS ==========

    location ~* ^/api/ {
        limit_req zone=api_limit burst=30 delay=15;
        limit_conn conn_limit_per_ip 30;

        access_log /var/log/nginx/api_access.log main;

        try_files $uri $uri/ /index.php?$query_string;
    }

    # ========== АУТЕНТИФИКАЦИЯ ==========

    location ~* ^/(login|register|password-reset|auth|forgot-password|verify-email) {
        limit_req zone=auth_limit burst=5 delay=3;
        limit_conn conn_limit_per_ip 5;

        access_log /var/log/nginx/auth_access.log main;

        try_files $uri $uri/ /index.php?$query_string;
    }

    # ========== ОБРАБОТКА PHP ==========

    location ~ \.php$ {
        # Дефолтные лимиты для всех PHP запросов
        limit_req zone=req_limit_per_ip burst=30 delay=15;
        limit_conn conn_limit_per_ip 30;

        try_files $uri =404;

        fastcgi_split_path_info ^(.+\.php)(/.+)$;
        fastcgi_pass 127.0.0.1:9000;
        fastcgi_index index.php;

        # Оптимизация из основного конфига
        fastcgi_buffers 16 16k;
        fastcgi_buffer_size 32k;
        fastcgi_busy_buffers_size 240k;
        fastcgi_temp_file_write_size 256k;

        # Таймауты
        fastcgi_connect_timeout 60s;
        fastcgi_send_timeout 600s;
        fastcgi_read_timeout 600s;

        include fastcgi_params;
        fastcgi_param SCRIPT_FILENAME $document_root$fastcgi_script_name;
        fastcgi_param PATH_INFO $fastcgi_path_info;
    }

    # ========== ОСНОВНОЙ LOCATION ==========

    location / {

        if ($query_string ~* "(?:^|[^a-z])(?:union|select|insert|update|delete|drop|create|alter|exec)(?:[^a-z]|$)") {
            return 444;
        }

        if ($request_uri ~ "//") {
            return 444;
        }

        try_files $uri $uri/ /index.php?$query_string;

        gzip_static on;
        gzip_vary on;
    }

    # ========== HEALTH CHECK ==========

    location = /health {
        access_log off;

        # Прямой прокси в Laravel
        try_files $uri /index.php?$query_string;

        add_header Cache-Control "no-store, no-cache, must-revalidate";
    }

    # ========== ЗАЩИТА ФАЙЛОВОЙ СИСТЕМЫ ==========

    location ~ /\. {
        deny all;
        access_log off;
        log_not_found off;
        return 404;
    }

    location ~* (\.env|\.git|\.svn|\.htaccess|composer\.json|composer\.lock) {
        deny all;
        return 404;
    }

    location ~* (eval|base64_encode|system\(|shell_exec|passthru|exec|phpinfo) {
        deny all;
        return 444;
    }
}