<?php
// +----------------------------------------------------------------------
// | Niucloud-admin 企业快速开发的多应用管理平台
// +----------------------------------------------------------------------
// | 官方网址：https://www.niucloud.com
// +----------------------------------------------------------------------
// | niucloud团队 版权所有 开源版本可自由商用
// +----------------------------------------------------------------------
// | Author: Niucloud Team
// +----------------------------------------------------------------------

namespace app\service\admin\sys;

use app\model\sys\SysMenu;
use core\base\BaseAdminService;
use core\exception\AdminException;
use think\facade\Db;

/**
 * 系统菜单服务类
 */
class SysMenuService extends BaseAdminService
{
    public function __construct()
    {
        parent::__construct();
        $this->model = new SysMenu();
    }

    /**
     * 获取菜单分页列表
     * @param array $where
     * @return array
     */
    public function getPage(array $where = [])
    {
        $field = 'id, menu_key, menu_name, menu_icon, menu_path, menu_params, sort_order, status, description, created_at, updated_at';
        $order = 'sort_order ASC, id DESC';

        $search_model = $this->model
            ->withSearch(['keyword', 'status'], $where)
            ->field($field)
            ->order($order);

        $list = $this->pageQuery($search_model, $where);

        return $list;
    }

    /**
     * 获取菜单信息
     * @param int $id
     * @return array
     */
    public function getInfo(int $id)
    {
        $field = 'id, menu_key, menu_name, menu_icon, menu_path, menu_params, sort_order, status, description, created_at, updated_at';

        $info = $this->model->field($field)->where([['id', '=', $id]])->findOrEmpty()->toArray();
        if (empty($info)) {
            throw new AdminException('菜单不存在');
        }

        // 解析JSON参数
        if (!empty($info['menu_params'])) {
            $info['menu_params'] = json_decode($info['menu_params'], true) ?? [];
        } else {
            $info['menu_params'] = [];
        }

        return $info;
    }

    /**
     * 添加菜单
     * @param array $data
     * @return mixed
     */
    public function add(array $data)
    {
        // 处理JSON参数
        if (isset($data['menu_params']) && is_array($data['menu_params'])) {
            $data['menu_params'] = json_encode($data['menu_params'], JSON_UNESCAPED_UNICODE);
        }

        $res = $this->model->create($data);
        return $res->id;
    }

    /**
     * 编辑菜单
     * @param int $id
     * @param array $data
     * @return bool
     */
    public function edit(int $id, array $data)
    {
        $info = $this->model->findOrEmpty($id);
        if ($info->isEmpty()) {
            throw new AdminException('菜单不存在');
        }

        // 处理JSON参数
        if (isset($data['menu_params']) && is_array($data['menu_params'])) {
            $data['menu_params'] = json_encode($data['menu_params'], JSON_UNESCAPED_UNICODE);
        }

        $this->model->where([['id', '=', $id]])->update($data);
        return true;
    }

    /**
     * 删除菜单
     * @param int $id
     * @return bool
     */
    public function del(int $id)
    {
        $model = $this->model->findOrEmpty($id);
        if ($model->isEmpty()) {
            throw new AdminException('菜单不存在');
        }

        // 检查是否有角色在使用此菜单
        $result = Db::query("SELECT COUNT(*) as count FROM role_menu_permissions WHERE menu_id = ?", [$id]);
        $roleMenuCount = $result[0]['count'] ?? 0;
        if ($roleMenuCount > 0) {
            throw new AdminException('该菜单已被角色使用，无法删除');
        }

        $res = $model->delete();
        return $res !== false;
    }

    /**
     * 修改菜单状态
     * @param int $id
     * @param int $status
     * @return bool
     */
    public function modifyStatus(int $id, int $status)
    {
        $this->model->where([['id', '=', $id]])->update(['status' => $status]);
        return true;
    }

    /**
     * 获取所有菜单（用于角色权限配置）
     * @return array
     */
    public function getAllMenus()
    {
        $list = $this->model
            ->field('id, menu_key, menu_name, menu_icon, menu_path, menu_params, sort_order, status, description')
            ->order('sort_order ASC, id ASC')
            ->select()
            ->toArray();

        // 处理参数
        foreach ($list as &$item) {
            if (!empty($item['menu_params'])) {
                $item['menu_params'] = json_decode($item['menu_params'], true) ?? [];
            } else {
                $item['menu_params'] = [];
            }
        }

        return $list;
    }

    /**
     * 获取角色菜单权限
     * @param int $roleId
     * @return array
     */
    public function getRoleMenus(int $roleId)
    {
        // 使用原生SQL查询避免表前缀问题
        $sql = "SELECT m.id, m.menu_key, m.menu_name, m.menu_icon, m.menu_path, m.menu_params, m.sort_order 
                FROM role_menu_permissions rmp 
                LEFT JOIN sys_menus m ON rmp.menu_id = m.id 
                WHERE rmp.role_id = ? AND rmp.is_enabled = 1 
                ORDER BY m.sort_order ASC";
        $menuList = Db::query($sql, [$roleId]);

        // 处理参数
        foreach ($menuList as &$item) {
            if (!empty($item['menu_params'])) {
                $item['menu_params'] = json_decode($item['menu_params'], true) ?? [];
            } else {
                $item['menu_params'] = [];
            }
        }

        return $menuList;
    }

    /**
     * 设置角色菜单权限
     * @param int $roleId
     * @param array $menuIds
     * @return bool
     */
    public function setRoleMenus(int $roleId, array $menuIds)
    {
        Db::startTrans();
        try {
            // 删除原有权限
            Db::execute("DELETE FROM role_menu_permissions WHERE role_id = ?", [$roleId]);

            // 添加新权限
            if (!empty($menuIds)) {
                $values = [];
                $params = [];
                foreach ($menuIds as $menuId) {
                    $values[] = "(?, ?, 1, NOW(), NOW())";
                    $params[] = $roleId;
                    $params[] = $menuId;
                }
                $sql = "INSERT INTO role_menu_permissions (role_id, menu_id, is_enabled, created_at, updated_at) VALUES " . implode(', ', $values);
                Db::execute($sql, $params);
            }

            Db::commit();
            return true;
        } catch (\Exception $e) {
            Db::rollback();
            throw new AdminException('设置菜单权限失败：' . $e->getMessage());
        }
    }
}