<?php

declare(strict_types=1);

namespace Steuerkram;

class View
{
    private string $viewDir;
    private array $flash = [];

    public function __construct()
    {
        $this->viewDir = dirname(__DIR__) . '/src/Views';

        // Session-based flash messages
        if (session_status() === PHP_SESSION_NONE) {
            session_start();
        }
        if (isset($_SESSION['flash'])) {
            $this->flash = $_SESSION['flash'];
            unset($_SESSION['flash']);
        }
    }

    public function render(string $template, array $data = []): void
    {
        $data['flash'] = $this->flash;
        $data['currentPath'] = parse_url($_SERVER['REQUEST_URI'] ?? '/', PHP_URL_PATH);

        extract($data, EXTR_SKIP);
        include $this->viewDir . '/' . $template;
    }

    public static function redirect(string $path, string $message = '', string $type = 'success'): void
    {
        if (session_status() === PHP_SESSION_NONE) {
            session_start();
        }
        if ($message !== '') {
            $_SESSION['flash'][] = ['type' => $type, 'message' => $message];
        }
        header('Location: ' . $path);
        exit;
    }

    public static function h(mixed $value): string
    {
        return htmlspecialchars((string)$value, ENT_QUOTES | ENT_SUBSTITUTE, 'UTF-8');
    }

    public static function formatMoney(mixed $value): string
    {
        return number_format((float)$value, 2, ',', '.') . ' €';
    }

    public static function formatDate(?string $date): string
    {
        if (!$date) return '–';
        $d = \DateTime::createFromFormat('Y-m-d', $date);
        return $d ? $d->format('d.m.Y') : $date;
    }
}