<?php
namespace catchAdmin\permissions\controller;

use catchAdmin\permissions\model\Permissions;
use catchAdmin\permissions\model\Roles;
use catcher\base\CatchRequest as Request;
use catcher\base\CatchController;
use catcher\CatchResponse;
use catcher\exceptions\FailedException;
use catcher\Tree;
use think\response\Json;
use catchAdmin\permissions\model\Roles as RoleModel;
use think\facade\Db;

class Role extends CatchController
{
    protected $role;

    public function __construct(RoleModel $role)
    {
        $this->role = $role;
    }

  /**
   *
   * @time 2019年12月09日
   * @return string
   */
    public function index()
    {
      return CatchResponse::success($this->role->getList());
    }
 /**
   *获取部分角色列表
   * @time 2019年12月09日
   * @return string
   */
  public function getPartRoles()
  {
    return CatchResponse::success($this->role->getPartList());
  }
  /**
   *获取当前用户数据权限
   * @time 2019年12月09日
   * @return string
   */
  public function isAllDataRange()
  {
    return CatchResponse::success($this->role->isAllDataRange());
  }
  
    /**
     *
     * @time 2019年12月11日
     * @param Request $request
     * @return Json
     * @throws \think\db\exception\DbException
     */
    public function save(Request $request)
    {
        $params = $request->param();
        
        if (Roles::where('identify', $params['identify'])->find()) {
            throw new FailedException('角色标识 [' . $params['identify'] . ']已存在');
        }
        Db::startTrans();
        // 保存角色
        $role_id = $this->role->storeBy($params);
        if (!$role_id) {
            return CatchResponse::fail('保存角色失败');
        }
        // 保存权限
        try {
            $this->role->attachPermissions(array_unique($params['permissions']));
        } catch (\Exception $e) {
            Db::rollback();
            return CatchResponse::fail('保存权限失败');
        }
        // 追加角色 暂时关闭
        // if ($params['identify'] != 'admin' && $params['identify'] != 'manage') {
        //     $user = request()->user();
        //     $save_data = ['uid'=>$user['id'], 'role_id'=>$role_id];
        //     try {
        //         Db::table('user_has_roles')->save($save_data);
        //     } catch (\Exception $e) {
        //         Db::rollback();
        //         return CatchResponse::fail('保存失败');
        //     }
        // }
        Db::commit();
        return CatchResponse::success('保存成功');
    }
    /**
     *
     * @time 2019年12月11日
     * @param id 
     */
    public function read($id)
    {
      $role = $this->role->findBy($id);
      $role->permissions = $role->getPermissions();
      return CatchResponse::success($role);
    }

    /**
     *
     * @time 2019年12月11日
     * @param $id
     * @param Request $request
     * @return Json
     * @throws \think\db\exception\DbException
     */
    public function update($id, Request $request): Json
    {
        if (Roles::where('identify', $request->param('identify'))->where('id', '<>', $id)->find()) {
            throw new FailedException('角色标识 [' . $request->param('identify') . ']已存在');
        }

        $this->role->updateBy($id, $request->param());
        $role = $this->role->findBy($id);

        $hasPermissionIds = $role->getPermissions()->column('id');

        $permissionIds = $request->param('permissions');

        // 已存在权限 IDS
        $existedPermissionIds = [];
        foreach ($hasPermissionIds as $hasPermissionId) {
            if (in_array($hasPermissionId, $permissionIds)) {
                $existedPermissionIds[] = $hasPermissionId;
            }
        }

        $attachIds = array_diff($permissionIds, $existedPermissionIds);
        $detachIds = array_diff($hasPermissionIds, $existedPermissionIds);

        if (!empty($detachIds)) {
            $role->detachPermissions($detachIds);
        }
        if (!empty($attachIds)) {
            $role->attachPermissions(array_unique($attachIds));
        }

        return CatchResponse::success();
    }

    /**
     *
     * @time 2019年12月11日
     * @param $id
     * @throws FailedException
     * @throws \think\db\exception\DataNotFoundException
     * @throws \think\db\exception\DbException
     * @throws \think\db\exception\ModelNotFoundException
     * @return Json
     */
    public function delete($id): Json
    {
        if ($this->role->where('parent_id', $id)->find()) {
            throw new FailedException('存在子角色，无法删除');
        }
        
        if ( Db::table('user_has_roles')->where('role_id', $id)->where('uid','<>',1)->find()) {
            throw new FailedException('存在该角色用户');
        }
        $role = $this->role->findBy($id);
        // 删除权限
        $role->detachPermissions();
        // 删除用户关联
        $role->users()->detach();
        // 删除
        $this->role->deleteBy($id,true);

        return CatchResponse::success();
    }

    /**
     *
     * @time 2019年12月11日
     * @param Request $request
     * @param \catchAdmin\permissions\model\Permissions $permission
     * @return Json
     */
    public function getPermissions(Request $request, \catchAdmin\permissions\model\Permissions $permission): Json
    {
        $parentRoleHasPermissionIds = [];
        if ($request->param('parent_id')) {
            $permissions = $this->role->findBy($request->param('parent_id'))->getPermissions();
            foreach ($permissions as $_permission) {
                $parentRoleHasPermissionIds[] = $_permission->pivot->permission_id;
            }
        }

        $permissions = Tree::done(Permissions::whereIn('id', $parentRoleHasPermissionIds)->select()->toArray());

        $permissionIds = [];
        if ($request->param('role_id')) {
            $roleHasPermissions = $this->role->findBy($request->param('role_id'))->getPermissions();
            foreach ($roleHasPermissions as $_permission) {
                $permissionIds[] = $_permission->pivot->permission_id;
            }
        }

        return CatchResponse::success([
            'permissions' => $permissions,
            'hasPermissions' => $permissionIds,
        ]);
    }
}