<?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)) {
        try {
            $pdo = db();
            // Use INSERT ... ON DUPLICATE KEY UPDATE to either create or update the template
            $sql = "INSERT INTO configuracion (clave, valor) VALUES (:clave, :valor)
                    ON DUPLICATE KEY UPDATE valor = :valor";
            $stmt = $pdo->prepare($sql);
            $stmt->execute([
                ':clave' => $template_name,
                ':valor' => $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;
}
?>