<?php
/**
 * Blog Configuration - TRIMAPE
 * Conexión PDO a la base de datos trimape_blog (separada de producción)
 */

// --- Database ---
define('DB_HOST', 'localhost');
define('DB_NAME', 'trimape_blog');
define('DB_USER', 'trimape_blog_usr');
define('DB_PASS', 'Tr1m4p3Bl0g2026!xK');
define('DB_CHARSET', 'utf8mb4');

// --- Blog Settings ---
define('BLOG_TITLE', 'Blog - TRIMAPE');
define('BLOG_DESCRIPTION', 'Artículos sobre mantenimiento industrial, eficiencia energética y más.');
define('BLOG_URL', 'https://trimape.mx/blog');
define('SITE_URL', 'https://trimape.mx');
define('POSTS_PER_PAGE', 6);
define('UPLOAD_DIR', __DIR__ . '/uploads/');
define('UPLOAD_URL', BLOG_URL . '/uploads/');
define('MAX_UPLOAD_SIZE', 5 * 1024 * 1024); // 5MB

// --- PDO Connection ---
function getDB(): PDO {
    static $pdo = null;
    if ($pdo === null) {
        $dsn = 'mysql:host=' . DB_HOST . ';dbname=' . DB_NAME . ';charset=' . DB_CHARSET;
        $options = [
            PDO::ATTR_ERRMODE            => PDO::ERRMODE_EXCEPTION,
            PDO::ATTR_DEFAULT_FETCH_MODE => PDO::FETCH_ASSOC,
            PDO::ATTR_EMULATE_PREPARES   => false,
        ];
        $pdo = new PDO($dsn, DB_USER, DB_PASS, $options);
    }
    return $pdo;
}

// --- Helper Functions ---
function e(string $str): string {
    return htmlspecialchars($str, ENT_QUOTES | ENT_HTML5, 'UTF-8');
}

function slugify(string $text): string {
    $text = iconv('UTF-8', 'ASCII//TRANSLIT//IGNORE', $text);
    $text = preg_replace('/[^a-zA-Z0-9\s-]/', '', $text);
    $text = strtolower(trim($text));
    $text = preg_replace('/[\s-]+/', '-', $text);
    return $text;
}

function truncate(string $text, int $length = 150): string {
    $text = strip_tags($text);
    if (mb_strlen($text) <= $length) return $text;
    return mb_substr($text, 0, $length) . '...';
}

function timeAgo(string $datetime): string {
    $now = new DateTime();
    $ago = new DateTime($datetime);
    $diff = $now->diff($ago);
    
    if ($diff->y > 0) return $diff->y . ' año' . ($diff->y > 1 ? 's' : '');
    if ($diff->m > 0) return $diff->m . ' mes' . ($diff->m > 1 ? 'es' : '');
    if ($diff->d > 0) return $diff->d . ' día' . ($diff->d > 1 ? 's' : '');
    if ($diff->h > 0) return $diff->h . ' hora' . ($diff->h > 1 ? 's' : '');
    return 'hace un momento';
}

// Create uploads directory if not exists
if (!is_dir(UPLOAD_DIR)) {
    mkdir(UPLOAD_DIR, 0755, true);
}