<?php

use MintyPHP\Buffer;
use MintyPHP\Http\SessionStoreInterface;
use MintyPHP\Router;
use MintyPHP\Service\Access\TenantAuthorizationPolicy;
use MintyPHP\Service\CustomField\TenantCustomFieldService;
use MintyPHP\Support\Flash;
use MintyPHP\Support\Guard;

$session = app(SessionStoreInterface::class)->all();
Guard::requireLogin();
$request = requestInput();
$returnTarget = requestResolveReturnTarget();
$closeTarget = requestResolveReturnTarget('admin/tenants');

$currentUserId = (int) ($session['user']['id'] ?? 0);
if ($currentUserId > 0) {
    app(\MintyPHP\Service\Access\PermissionService::class)->getUserPermissions($currentUserId);
}
$uuid = trim((string) ($id ?? ''));
$editTarget = requestPathWithReturnTarget("admin/tenants/edit/{$uuid}", $returnTarget);

// Resolve the tenant BEFORE the aggregator so the authorize-context can carry
// the real target_tenant_id (matches today's order: lookup → CONTEXT authorize
// → can_view_page). The aggregator receives a trivial finder that returns the
// already-loaded model so its not-found branch fires only when findByUuid
// returned null.
$tenant = $uuid !== '' ? app(\MintyPHP\Service\Tenant\TenantService::class)->findByUuid($uuid) : null;
$tenantId = (int) ($tenant['id'] ?? 0);

$context = actionEditContext([
    'finder' => static fn (string $_id): mixed => $tenant,
    'rawId' => $uuid,
    'notFoundFlashKey' => 'Tenant not found',
    'notFoundRedirectPath' => $closeTarget,
    'notFoundFlashScopeKey' => 'tenant_not_found',
    'abilityKey' => TenantAuthorizationPolicy::ABILITY_ADMIN_TENANTS_EDIT_CONTEXT,
    'context' => [
        'actor_user_id' => $currentUserId,
        'target_tenant_id' => $tenantId,
    ],
    'viewAuthFlags' => ['can_update_tenant', 'can_delete_tenant', 'can_manage_custom_fields', 'can_manage_sso'],
    'forbiddenStrategy' => 'redirect',
]);
$tenant = is_array($context['model']) ? $context['model'] : $tenant;
$capabilities = $context['capabilities'];
$tenantScope = $context['tenantScope'];
$viewAuth = $context['viewAuth'];
$canUpdateTenant = (bool) ($capabilities['can_update_tenant'] ?? false);
$canDeleteTenant = (bool) ($capabilities['can_delete_tenant'] ?? false);
$canManageCustomFields = (bool) ($capabilities['can_manage_custom_fields'] ?? false);
$canManageSso = (bool) ($capabilities['can_manage_sso'] ?? false);
// Tenants-Edit konsumiert $tenantScope['ids'] bewusst NICHT — wir editieren
// die Mandanten selbst, kein Filter-Szenario wie bei Departments-Edit.
// $canManageAllTenants bleibt als Hook fuer kuenftige Policy-Erweiterungen
// definiert.
$canManageAllTenants = $tenantScope['scope'] === 'all';

$tenantSsoService = app(\MintyPHP\Service\Auth\TenantSsoService::class);
$authService = app(\MintyPHP\Service\Auth\AuthService::class);
$authorizationService = app(\MintyPHP\Service\Access\AuthorizationService::class);

$tenantCustomFieldService = app(TenantCustomFieldService::class);
$customFieldDefinitions = $canManageCustomFields
    ? $tenantCustomFieldService->listForTenant($tenantId)
    : [];
$ssoConfig = $canManageSso ? $tenantSsoService->getTenantMicrosoftAuth($tenantId) : [];
$ssoUiState = $canManageSso ? $tenantSsoService->buildMicrosoftUiState($tenantId, $ssoConfig) : [];
$ldapConfig = $canManageSso ? $tenantSsoService->getTenantLdapAuth($tenantId) : [];
$ldapUiState = $canManageSso ? $tenantSsoService->buildLdapUiState($tenantId) : [];
app(\MintyPHP\Service\Audit\AuditMetadataEnricherInterface::class)->enrich($tenant, ['created_by', 'modified_by', 'status_changed_by']);

$errorBag = formErrors();
$errors = [];
$form = array_merge($tenant, $ssoConfig);
$form['microsoft_enabled'] = $ssoConfig['enabled'] ?? false;
$form['ldap_enabled'] = $ldapConfig['enabled'] ?? false;

if ($request->isMethod('POST') && !actionRequireCsrf($editTarget, $editTarget, 'csrf_expired')) {
    return;
}

if ($request->isMethod('POST')) {
    $post = $request->bodyAll();
    $submitDecision = $authorizationService->authorize(TenantAuthorizationPolicy::ABILITY_ADMIN_TENANTS_EDIT_SUBMIT, [
        'actor_user_id' => $currentUserId,
        'target_tenant_id' => $tenantId,
        'input' => $post,
    ]);
    if (!$submitDecision->isAllowed()) {
        Router::redirect('error/forbidden');
        return;
    }

    $submitCapabilities = $submitDecision->attribute('capabilities', []);
    if (is_array($submitCapabilities)) {
        $canUpdateTenant = (bool) ($submitCapabilities['can_update_tenant'] ?? $canUpdateTenant);
        $canDeleteTenant = (bool) ($submitCapabilities['can_delete_tenant'] ?? $canDeleteTenant);
        $canManageCustomFields = (bool) ($submitCapabilities['can_manage_custom_fields'] ?? $canManageCustomFields);
        $canManageSso = (bool) ($submitCapabilities['can_manage_sso'] ?? $canManageSso);
        $viewAuth['page'] = [
            'can_update_tenant' => $canUpdateTenant,
            'can_delete_tenant' => $canDeleteTenant,
            'can_manage_custom_fields' => $canManageCustomFields,
            'can_manage_sso' => $canManageSso,
        ];
    }
    if (!$canUpdateTenant) {
        Router::redirect('error/forbidden');
        return;
    }

    $result = app(\MintyPHP\Service\Tenant\TenantService::class)->updateFromAdmin($tenantId, $post, $currentUserId);
    $form = $result['form'] ?? $form;
    $errorBag->merge($result['errors'] ?? []);

    if (($result['ok'] ?? false) && !$errorBag->hasAny()) {
        if ($canManageSso) {
            $ssoSaveResult = $tenantSsoService->saveTenantMicrosoftAuth($tenantId, $post);
            if (!($ssoSaveResult['ok'] ?? false)) {
                $errorBag->merge($ssoSaveResult['errors'] ?? [t('Tenant SSO settings could not be saved')]);
            }
            $ldapSaveResult = $tenantSsoService->saveTenantLdapAuth($tenantId, $post);
            if (!($ldapSaveResult['ok'] ?? false)) {
                $errorBag->merge($ldapSaveResult['errors'] ?? [t('Tenant LDAP settings could not be saved')]);
            }
        }
    }

    if (($result['ok'] ?? false) && !$errorBag->hasAny()) {
        if ($currentUserId > 0) {
            $authService->loadTenantDataIntoSession($currentUserId);
        }
        $action = (string) ($post['action'] ?? 'save');
        if ($action === 'save_close') {
            Flash::success(t('Tenant updated'), $closeTarget, 'tenant_updated');
            Router::redirect($closeTarget);
        } else {
            Flash::success(t('Tenant updated'), $editTarget, 'tenant_updated');
            Router::redirect($editTarget);
        }
    }

    if ($canManageSso) {
        $form = array_merge($form, [
            'microsoft_enabled' => !empty($post['microsoft_enabled']) ? '1' : '0',
            'enforce_microsoft_login' => !empty($post['enforce_microsoft_login']) ? '1' : '0',
            'sync_profile_on_login' => !empty($post['sync_profile_on_login']) ? '1' : '0',
            'sync_profile_fields_list' => $tenantSsoService->normalizeProfileSyncFields($post['sync_profile_fields'] ?? []),
            'entra_tenant_id' => trim((string) ($post['entra_tenant_id'] ?? '')),
            'allowed_domains' => trim((string) ($post['allowed_domains'] ?? '')),
            'use_shared_app' => !empty($post['use_shared_app']) ? '1' : '0',
            'client_id_override' => trim((string) ($post['client_id_override'] ?? '')),
            'auto_remember_mode' => $post['microsoft_auto_remember_mode'] ?? null,
        ]);
        $ssoUiState = $tenantSsoService->buildMicrosoftUiState($tenantId, $post);
        $ldapUiState = $tenantSsoService->buildLdapUiState($tenantId, $post);
        $form = array_merge($form, [
            'ldap_enabled' => !empty($post['ldap_enabled']) ? '1' : '0',
            'enforce_ldap_login' => !empty($post['enforce_ldap_login']) ? '1' : '0',
            'ldap_host' => trim((string) ($post['ldap_host'] ?? '')),
            'ldap_port' => (int) ($post['ldap_port'] ?? 389),
            'ldap_encryption_mode' => (string) ($post['ldap_encryption_mode'] ?? 'starttls'),
            'ldap_verify_tls_certificate' => !empty($post['ldap_verify_tls_certificate']) ? '1' : '0',
            'ldap_base_dn' => trim((string) ($post['ldap_base_dn'] ?? '')),
            'ldap_user_search_filter' => trim((string) ($post['ldap_user_search_filter'] ?? '')),
            'ldap_bind_method' => (string) ($post['ldap_bind_method'] ?? 'search_then_bind'),
            'ldap_bind_username_format' => trim((string) ($post['ldap_bind_username_format'] ?? '')),
            'ldap_unique_id_attribute' => trim((string) ($post['ldap_unique_id_attribute'] ?? 'objectGUID')),
            'ldap_sync_profile_on_login' => !empty($post['ldap_sync_profile_on_login']) ? '1' : '0',
        ]);
    }
}

if ($canManageSso && empty($ssoUiState)) {
    $ssoUiState = $tenantSsoService->buildMicrosoftUiState($tenantId, $form);
}
if ($canManageSso && empty($ldapUiState)) {
    $ldapUiState = $tenantSsoService->buildLdapUiState($tenantId);
}

$validationSummaryErrors = $errorBag->toArray();
$errors = $errorBag->toFlatList();
$tenantLabel = trim((string) ($form['description'] ?? $tenant['description'] ?? ''));
$fallbackTitle = $canUpdateTenant ? t('Edit tenant') : t('View tenant');
$titleText = $tenantLabel !== '' ? $tenantLabel : $fallbackTitle;
Buffer::set('title', $titleText);
$breadcrumbs = [
    ['label' => t('Home'), 'path' => 'admin'],
    ['label' => t('Tenants'), 'path' => 'admin/tenants'],
    ['label' => $titleText],
];
