<?php

require_once __DIR__ . '/../models/Note.php';

class NoteController
{
    private function requireAuth(): void
    {
        if (!isset($_SESSION['logged_in']) || !$_SESSION['logged_in']) {
            header('Location: /logowanie');
            exit;
        }
    }

    public function index(): void
    {
        $this->requireAuth();

        $userId = $_SESSION['user_id'];
        $userLogin = $_SESSION['user_login'];
        $notes = Note::getAllByUser($userId);

        $success = $_SESSION['success'] ?? null;
        $error = $_SESSION['error'] ?? null;
        unset($_SESSION['success'], $_SESSION['error']);

        require __DIR__ . '/../views/notes/index.php';
    }

    public function create(): void
    {
        $this->requireAuth();

        $userLogin = $_SESSION['user_login'];
        $note = null;
        $isEdit = false;

        require __DIR__ . '/../views/notes/form.php';
    }

    public function store(): void
    {
        $this->requireAuth();

        $userId = $_SESSION['user_id'];
        $title = trim($_POST['title'] ?? '');
        $content = trim($_POST['content'] ?? '');
        $color = $_POST['color'] ?? 'primary';

        if (empty($title)) {
            $_SESSION['error'] = 'Tytuł notatki jest wymagany.';
            header('Location: /notatnik/nowa');
            exit;
        }

        Note::create($userId, $title, $content, $color);
        $_SESSION['success'] = 'Notatka została dodana.';
        header('Location: /notatnik');
        exit;
    }

    public function edit(int $id): void
    {
        $this->requireAuth();

        $userId = $_SESSION['user_id'];
        $userLogin = $_SESSION['user_login'];
        $note = Note::getById($id, $userId);

        if (!$note) {
            $_SESSION['error'] = 'Notatka nie została znaleziona.';
            header('Location: /notatnik');
            exit;
        }

        $isEdit = true;
        require __DIR__ . '/../views/notes/form.php';
    }

    public function update(int $id): void
    {
        $this->requireAuth();

        $userId = $_SESSION['user_id'];
        $title = trim($_POST['title'] ?? '');
        $content = trim($_POST['content'] ?? '');
        $color = $_POST['color'] ?? 'primary';

        if (empty($title)) {
            $_SESSION['error'] = 'Tytuł notatki jest wymagany.';
            header("Location: /notatnik/edytuj/$id");
            exit;
        }

        $note = Note::getById($id, $userId);
        if (!$note) {
            $_SESSION['error'] = 'Notatka nie została znaleziona.';
            header('Location: /notatnik');
            exit;
        }

        Note::update($id, $userId, $title, $content, $color);
        $_SESSION['success'] = 'Notatka została zaktualizowana.';
        header('Location: /notatnik');
        exit;
    }

    public function delete(int $id): void
    {
        $this->requireAuth();

        $userId = $_SESSION['user_id'];
        $note = Note::getById($id, $userId);

        if (!$note) {
            $_SESSION['error'] = 'Notatka nie została znaleziona.';
            header('Location: /notatnik');
            exit;
        }

        Note::delete($id, $userId);
        $_SESSION['success'] = 'Notatka została usunięta.';
        header('Location: /notatnik');
        exit;
    }
}