<?php

use MintyPHP\Http\Request;
use MintyPHP\Http\SessionStoreInterface;
use MintyPHP\Router;
use MintyPHP\Service\Access\DepartmentAuthorizationPolicy;
use MintyPHP\Support\Flash;
use MintyPHP\Support\Guard;

$session = app(SessionStoreInterface::class)->all();
Guard::requireLogin();
$authorizationService = app(\MintyPHP\Service\Access\AuthorizationService::class);

$uuid = trim((string) ($id ?? ''));
if ($uuid === '') {
    Router::redirect('admin/departments');
    return;
}

$currentUserId = (int) ($session['user']['id'] ?? 0);
$department = app(\MintyPHP\Service\Org\DepartmentService::class)->findByUuid($uuid);
if (!$department) {
    if (Request::wantsJson()) {
        http_response_code(404);
        Router::json(['error' => 'not_found']);
        return;
    }
    Flash::error('Department not found', 'admin/departments', 'department_not_found');
    Router::redirect('admin/departments');
    return;
}

$departmentId = (int) ($department['id'] ?? 0);
$decision = $authorizationService->authorize(DepartmentAuthorizationPolicy::ABILITY_ADMIN_DEPARTMENTS_DELETE, [
    'actor_user_id' => $currentUserId,
    'target_department_id' => $departmentId,
]);
if (!$decision->isAllowed()) {
    if (Request::wantsJson()) {
        http_response_code($decision->status());
        Router::json(['error' => $decision->error()]);
        return;
    }
    Router::redirect('error/forbidden');
    return;
}

$result = app(\MintyPHP\Service\Org\DepartmentService::class)->deleteByUuid($uuid);
if (!($result['ok'] ?? false)) {
    $error = $result['error'] ?? 'not_found';
    $status = $result['status'] ?? 500;
    if (Request::wantsJson()) {
        http_response_code($status);
        Router::json(['error' => $error]);
        return;
    }
    if ($error === 'department_has_users') {
        Flash::error(t('Department can not be deleted while users are assigned'), 'admin/departments', 'department_has_users');
    } else {
        Flash::error(t('Department not found'), 'admin/departments', 'department_not_found');
    }
    Router::redirect('admin/departments');
    return;
}

if ($currentUserId > 0) {
    app(\MintyPHP\Service\Auth\AuthService::class)->loadTenantDataIntoSession($currentUserId);
}

if (Request::wantsJson()) {
    http_response_code(204);
    Router::json([]);
    return;
}

Flash::success('Department deleted', 'admin/departments', 'department_deleted');
Router::redirect('admin/departments');