<?php

namespace MintyPHP\Support;

use MintyPHP\Service\Access\PermissionService;
use MintyPHP\Service\User\UserAvatarService;

class SearchConfig
{
    public static function tenantScopeFilters(): array
    {
        return [
            'users' => 'and exists (select 1 from user_tenants ut where ut.user_id = users.id and ut.tenant_id in (???))',
            'address-book' => 'and exists (select 1 from user_tenants ut where ut.user_id = users.id and ut.tenant_id in (???))',
            'tenants' => 'and id in (???)',
            'departments' => 'and exists (select 1 from tenant_departments td where td.department_id = departments.id and td.tenant_id in (???))',
        ];
    }


    private static function normalizeLikeQuery(string $query): string
    {
        $query = trim($query);
        if ($query === '') {
            return '';
        }
        $query = str_replace('\\', '\\\\', $query);
        $query = str_replace('_', '\\_', $query);
        $query = str_replace('*', '%', $query);
        if (!str_starts_with($query, '%')) {
            $query = '%' . $query;
        }
        if (!str_ends_with($query, '%')) {
            $query = $query . '%';
        }
        return $query;
    }

    public static function normalizeScoreQuery(string $query): string
    {
        $query = trim($query);
        if ($query == '') {
            return '';
        }
        return str_replace(['*', '%', '_'], '', $query);
    }

    public static function resources(string $query, string $locale): array
    {
        $like = self::normalizeLikeQuery($query);

        return [
            [
                'key' => 'address-book',
                'label' => t('Address book'),
                'permission' => PermissionService::ADDRESS_BOOK_VIEW,
                'countSql' => "select count(*) from users where active = 1 and (first_name like ? escape '\\\\' or last_name like ? escape '\\\\' or email like ? escape '\\\\') {{tenantFilter}}",
                'countParams' => [$like, $like, $like],
                'previewSql' => "select uuid, first_name, last_name, email from users where active = 1 and (first_name like ? escape '\\\\' or last_name like ? escape '\\\\' or email like ? escape '\\\\') {{tenantFilter}} order by last_name, first_name limit ?",
                'previewParams' => [$like, $like, $like],
                'resultSql' => "select uuid, first_name, last_name, email from users where active = 1 and (first_name like ? escape '\\\\' or last_name like ? escape '\\\\' or email like ? escape '\\\\') {{tenantFilter}} order by last_name, first_name",
                'resultParams' => [$like, $like, $like],
            ],
            [
                'key' => 'users',
                'label' => t('Users'),
                'permission' => PermissionService::USERS_VIEW,
                'countSql' => "select count(*) from users where (first_name like ? escape '\\\\' or last_name like ? escape '\\\\' or email like ? escape '\\\\') {{tenantFilter}}",
                'countParams' => [$like, $like, $like],
                'previewSql' => "select uuid, first_name, last_name, email from users where (first_name like ? escape '\\\\' or last_name like ? escape '\\\\' or email like ? escape '\\\\') {{tenantFilter}} order by last_name, first_name limit ?",
                'previewParams' => [$like, $like, $like],
                'resultSql' => "select uuid, first_name, last_name, email from users where (first_name like ? escape '\\\\' or last_name like ? escape '\\\\' or email like ? escape '\\\\') {{tenantFilter}} order by last_name, first_name",
                'resultParams' => [$like, $like, $like],
            ],
            [
                'key' => 'tenants',
                'label' => t('Tenants'),
                'permission' => PermissionService::TENANTS_VIEW,
                'countSql' => "select count(*) from tenants where description like ? escape '\\\\' {{tenantFilter}}",
                'countParams' => [$like],
                'previewSql' => "select uuid, description from tenants where description like ? escape '\\\\' {{tenantFilter}} order by description limit ?",
                'previewParams' => [$like],
                'resultSql' => "select uuid, description from tenants where description like ? escape '\\\\' {{tenantFilter}} order by description",
                'resultParams' => [$like],
            ],
            [
                'key' => 'departments',
                'label' => t('Departments'),
                'permission' => PermissionService::DEPARTMENTS_VIEW,
                'countSql' => "select count(*) from departments where description like ? escape '\\\\' {{tenantFilter}}",
                'countParams' => [$like],
                'previewSql' => "select uuid, description from departments where description like ? escape '\\\\' {{tenantFilter}} order by description limit ?",
                'previewParams' => [$like],
                'resultSql' => "select uuid, description from departments where description like ? escape '\\\\' {{tenantFilter}} order by description",
                'resultParams' => [$like],
            ],
            [
                'key' => 'roles',
                'label' => t('Roles'),
                'permission' => PermissionService::ROLES_VIEW,
                'countSql' => "select count(*) from roles where active = 1 and description like ? escape '\\\\'",
                'countParams' => [$like],
                'previewSql' => "select uuid, description from roles where active = 1 and description like ? escape '\\\\' order by description limit ?",
                'previewParams' => [$like],
                'resultSql' => "select uuid, description from roles where active = 1 and description like ? escape '\\\\' order by description",
                'resultParams' => [$like],
            ],
            [
                'key' => 'permissions',
                'label' => t('Permissions'),
                'permission' => PermissionService::PERMISSIONS_VIEW,
                'countSql' => "select count(*) from permissions where active = 1 and (`key` like ? escape '\\\\' or description like ? escape '\\\\')",
                'countParams' => [$like, $like],
                'previewSql' => "select id, description, `key` from permissions where active = 1 and (`key` like ? escape '\\\\' or description like ? escape '\\\\') order by `key` limit ?",
                'previewParams' => [$like, $like],
                'resultSql' => "select id, description, `key` from permissions where active = 1 and (`key` like ? escape '\\\\' or description like ? escape '\\\\') order by `key`",
                'resultParams' => [$like, $like],
            ],
            [
                'key' => 'pages',
                'label' => t('Pages'),
                'permission' => '',
                'countSql' => "select count(*) from pages p join page_contents pc on pc.page_id = p.id and pc.locale = ? where p.slug like ? escape '\\\\' or pc.content like ? escape '\\\\'",
                'countParams' => [$locale, $like, $like],
                'previewSql' => "select p.slug from pages p join page_contents pc on pc.page_id = p.id and pc.locale = ? where p.slug like ? escape '\\\\' or pc.content like ? escape '\\\\' order by p.slug limit ?",
                'previewParams' => [$locale, $like, $like],
                'resultSql' => "select p.slug from pages p join page_contents pc on pc.page_id = p.id and pc.locale = ? where p.slug like ? escape '\\\\' or pc.content like ? escape '\\\\' order by p.slug",
                'resultParams' => [$locale, $like, $like],
            ],
            [
                'key' => 'settings',
                'label' => t('Settings'),
                'permission' => PermissionService::SETTINGS_VIEW,
                'countSql' => "select count(*) from settings where `key` like ? escape '\\\\' or value like ? escape '\\\\'",
                'countParams' => [$like, $like],
                'previewSql' => null,
                'previewParams' => [],
                'resultSql' => "select `key`, value from settings where `key` like ? escape '\\\\' or value like ? escape '\\\\' order by `key`",
                'resultParams' => [$like, $like],
            ],
        ];
    }

    public static function iconForKey(string $key): string
    {
        return match ($key) {
            'address-book' => 'bi-people',
            'users' => 'bi-person-badge',
            'tenants' => 'bi-buildings',
            'departments' => 'bi-diagram-3',
            'roles' => 'bi-people',
            'permissions' => 'bi-shield-lock',
            'pages' => 'bi-file-text',
            'settings' => 'bi-gear',
            default => 'bi-search',
        };
    }

    public static function listUrl(string $key, string $query): string
    {
        $encoded = urlencode($query);

        return match ($key) {
            'address-book' => lurl('address-book') . '?search=' . $encoded,
            'users' => lurl('admin/users') . '?search=' . $encoded,
            'tenants' => lurl('admin/tenants') . '?search=' . $encoded,
            'departments' => lurl('admin/departments') . '?search=' . $encoded,
            'roles' => lurl('admin/roles') . '?search=' . $encoded,
            'permissions' => lurl('admin/permissions') . '?search=' . $encoded,
            'pages' => lurl(''),
            'settings' => lurl('admin/settings'),
            default => lurl(''),
        };
    }

    public static function mapPreviewItem(string $key, array $data, string $query): ?array
    {
        if ($key === 'users') {
            $label = trim(($data['first_name'] ?? '') . ' ' . ($data['last_name'] ?? ''));
            $email = trim((string) ($data['email'] ?? ''));
            if ($email !== '') {
                $label = $label === '' ? $email : ($label . ' — ' . $email);
            }
            $url = lurl('admin/users/edit/' . ($data['uuid'] ?? '')) . '?search=' . urlencode($query);
        } elseif ($key === 'address-book') {
            $label = trim(($data['first_name'] ?? '') . ' ' . ($data['last_name'] ?? ''));
            $email = trim((string) ($data['email'] ?? ''));
            if ($email !== '') {
                $label = $label === '' ? $email : ($label . ' — ' . $email);
            }
            $url = lurl('address-book/view/' . ($data['uuid'] ?? '')) . '?search=' . urlencode($query);
        } elseif ($key === 'permissions') {
            $label = (string) ($data['description'] ?? '');
            $url = lurl('admin/permissions/edit/' . ($data['id'] ?? '')) . '?search=' . urlencode($query);
        } elseif ($key === 'pages') {
            $label = (string) ($data['slug'] ?? '');
            $url = lurl('page/' . $label) . '?search=' . urlencode($query);
        } else {
            $label = (string) ($data['description'] ?? '');
            $url = lurl('admin/' . $key . '/edit/' . ($data['uuid'] ?? '')) . '?search=' . urlencode($query);
        }

        if ($label === '' || $url === '') {
            return null;
        }
        return ['label' => $label, 'url' => $url];
    }

    public static function mapResultItem(string $key, string $label, array $data): ?array
    {
        $title = '';
        $description = '';
        $url = '';
        $image = '';
        if ($key === 'users') {
            $title = trim(($data['first_name'] ?? '') . ' ' . ($data['last_name'] ?? ''));
            $description = (string) ($data['email'] ?? '');
            $url = lurl('admin/users/edit/' . ($data['uuid'] ?? ''));
        } elseif ($key === 'address-book') {
            $title = trim(($data['first_name'] ?? '') . ' ' . ($data['last_name'] ?? ''));
            $description = (string) ($data['email'] ?? '');
            $uuid = (string) ($data['uuid'] ?? '');
            $url = lurl('address-book/view/' . $uuid);
            if ($uuid !== '' && UserAvatarService::hasAvatar($uuid)) {
                $image = lurl('admin/users/avatar-file') . '?uuid=' . urlencode($uuid) . '&size=64';
            }
        } elseif ($key === 'permissions') {
            $title = (string) ($data['key'] ?? '');
            $description = (string) ($data['description'] ?? '');
            $url = lurl('admin/permissions/edit/' . ($data['id'] ?? ''));
        } elseif ($key === 'pages') {
            $title = (string) ($data['slug'] ?? '');
            $description = t('Page');
            $url = lurl('page/' . $title);
        } elseif ($key === 'settings') {
            $title = (string) ($data['key'] ?? '');
            $description = (string) ($data['value'] ?? '');
            $url = lurl('admin/settings');
        } else {
            $title = (string) ($data['description'] ?? '');
            $description = $label;
            $url = lurl('admin/' . $key . '/edit/' . ($data['uuid'] ?? ''));
        }

        if ($title === '' || $url === '') {
            return null;
        }

        return [
            'type' => $label,
            'title' => $title,
            'description' => $description,
            'url' => $url,
            'image' => $image,
            'icon' => self::iconForKey($key),
        ];
    }
}