<?php

use MintyPHP\Buffer;
use MintyPHP\DB;
use MintyPHP\Router;
use MintyPHP\Support\Flash;
use MintyPHP\Support\Guard;
use MintyPHP\Service\PermissionService;
use MintyPHP\Service\TenantScopeService;
use MintyPHP\Service\UserService;

Guard::requireLogin();
Guard::requirePermissionOrForbidden(PermissionService::ADDRESS_BOOK_VIEW);

$currentUserId = (int) ($_SESSION['user']['id'] ?? 0);
$uuid = trim((string) ($id ?? ''));
if ($uuid === '') {
    Router::redirect('address-book');
}

$user = UserService::findByUuid($uuid);
if (!$user || !isset($user['id'])) {
    Flash::error('User not found', 'address-book', 'user_not_found');
    Router::redirect('address-book');
}

$userId = (int) ($user['id'] ?? 0);
if ($currentUserId !== $userId && !TenantScopeService::canAccess('users', $userId, $currentUserId)) {
    Router::redirect('error/forbidden');
}

$getRowValue = static function (array $row, string $key): ?string {
    foreach ($row as $value) {
        if (is_array($value) && array_key_exists($key, $value)) {
            return (string) $value[$key];
        }
    }
    if (array_key_exists($key, $row) && !is_array($row[$key])) {
        return (string) $row[$key];
    }
    return null;
};

$extractLabels = static function (array $rows): array {
    $labels = [];
    foreach ($rows as $row) {
        $label = '';
        foreach ($row as $value) {
            if (is_array($value) && isset($value['description'])) {
                $label = (string) $value['description'];
                break;
            }
        }
        if ($label === '' && isset($row['description'])) {
            $label = (string) $row['description'];
        }
        if ($label !== '') {
            $labels[] = $label;
        }
    }
    return array_values(array_unique($labels));
};

$tenantRows = DB::select(
    'select t.id as id, t.description as description from user_tenants ut join tenants t on t.id = ut.tenant_id where ut.user_id = ? order by t.description asc',
    (string) $userId
);
$departmentRows = DB::select(
    'select td.tenant_id as tenant_id, d.description as description from user_departments ud join tenant_departments td on td.department_id = ud.department_id join departments d on d.id = ud.department_id where ud.user_id = ? order by d.description asc',
    (string) $userId
);
$roleRows = DB::select(
    'select r.description as description from user_roles ur join roles r on r.id = ur.role_id where ur.user_id = ? order by r.description asc',
    (string) $userId
);

$departmentMap = [];
foreach (is_array($departmentRows) ? $departmentRows : [] as $row) {
    $tenantId = (int) ($getRowValue($row, 'tenant_id') ?? 0);
    $label = (string) ($getRowValue($row, 'description') ?? '');
    if ($tenantId > 0 && $label !== '') {
        $departmentMap[$tenantId][] = $label;
    }
}
foreach ($departmentMap as $tenantId => $labels) {
    $departmentMap[$tenantId] = array_values(array_unique($labels));
}

$primaryTenantId = (int) ($user['primary_tenant_id'] ?? 0);
$tenantGroups = [];
foreach (is_array($tenantRows) ? $tenantRows : [] as $row) {
    $tenantId = (int) ($getRowValue($row, 'id') ?? 0);
    $tenantLabel = (string) ($getRowValue($row, 'description') ?? '');
    if ($tenantId <= 0 || $tenantLabel === '') {
        continue;
    }
    $tenantGroups[] = [
        'label' => $tenantLabel,
        'is_primary' => $primaryTenantId > 0 && $tenantId === $primaryTenantId,
        'departments' => $departmentMap[$tenantId] ?? [],
    ];
}

$roleLabels = $extractLabels(is_array($roleRows) ? $roleRows : []);

$user['tenant_groups'] = $tenantGroups;
$user['role_labels'] = $roleLabels;

$name = trim(($user['first_name'] ?? '') . ' ' . ($user['last_name'] ?? ''));
$title = $name !== '' ? $name : ($user['email'] ?? t('Address book'));
Buffer::set('title', $title);