<?php
require_once 'db/config.php';

if ($_SERVER['REQUEST_METHOD'] === 'POST') {
    $template_name = $_POST['template_name'] ?? '';
    $template_content = $_POST['template_content'] ?? '';

    if (!empty($template_name)) { // Allow empty content to reset
        try {
            // Check if the config exists
            $stmt = db()->prepare("SELECT id FROM configuracion WHERE nombre_config = ?");
            $stmt->execute([$template_name]);
            $exists = $stmt->fetchColumn();

            if ($exists) {
                // Update
                $update_stmt = db()->prepare("UPDATE configuracion SET valor_config = ? WHERE nombre_config = ?");
                $update_stmt->execute([$template_content, $template_name]);
            } else {
                // Insert
                $insert_stmt = db()->prepare("INSERT INTO configuracion (nombre_config, valor_config) VALUES (?, ?)");
                $insert_stmt->execute([$template_name, $template_content]);
            }
            
            // Redirect back to configuration page with a success message
            header('Location: configuracion.php?success=1');
            exit;

        } catch (PDOException $e) {
            // Handle DB error
            header('Location: configuracion.php?error=db');
            exit;
        }
    } else {
        // Handle empty fields
        header('Location: configuracion.php?error=empty');
        exit;
    }
} else {
    // Redirect if not a POST request
    header('Location: configuracion.php');
    exit;
}
?>