<?php

namespace app\admin\service;

use app\common\model\User as UserModel;

class AccountService
{

    /* 查询所有用户 */
    public function getAllUsers()
    {
        $users = UserModel::with('company')->select();
        return $users->map(function ($user) {
            $companyName = $user->role === 'client' && (bool) $user->can_view_all_tickets
                ? '全部客户'
                : ($user->company->company_name ?? '');

            return [
                'id' => $user->id,
                'company' => [
                    'id' => $user->company_id,
                    'company_name' => $companyName
                ],
                'username' => $user->username,
                'real_name' => $user->real_name,
                'role' => $user->role,
                'can_view_all_tickets' => (bool) $user->can_view_all_tickets,
                'status' => $user->status,
            ];
        })->toArray();
    }

    /* 注册账户 */
    public function createAccount($data)
    {
        if (empty($data['real_name'])) {
            $data['real_name'] = $data['username'];
        }

        # 检查数据库中是否有相同用户名账户
        $exist = UserModel::where('username', $data['username'])->find();

        if ($exist) {
            throw new \Exception('用户名已存在');
        }

        $role = $data['role'] ?? 'user';
        $companyId = (int) ($data['company_id'] ?? 0);
        $canViewAllTickets = $role === 'client' && !empty($data['can_view_all_tickets']);

        // 系统中只允许存在一个可查看全部工单的客户汇总账号。
        if ($canViewAllTickets) {
            $allAccessClient = UserModel::where('role', 'client')
                ->where('can_view_all_tickets', 1)
                ->find();
            if ($allAccessClient) {
                throw new \Exception('已存在可查看全部工单的客户账号');
            }
        }

        $insertData = [
            'company_id' => $companyId,
            'username' => $data['username'],
            'real_name' =>  $data['real_name'] ?? $data['username'],
            'password' => password_hash('123456', PASSWORD_DEFAULT),
            'role' => $role,
            'can_view_all_tickets' => $canViewAllTickets ? 1 : 0,
            'status'   => 1,
        ];

        $user = UserModel::create($insertData);

        /** @var \think\Model $user */
        return $user->visible(['id', 'username', 'real_name', 'role', 'can_view_all_tickets', 'status'])->toArray();
    }

    /* 更新用户状态 */
    public function updateAccountStatus($id, $status)
    {
        $user = UserModel::find($id);
        if (!$user) {
            throw new \Exception('用户不存在');
        }

        $user->status = $status;
        $user->save();

        return $user->visible(['id', 'username', 'real_name', 'role', 'status'])->toArray();
    }


    /* 删除用户 */
    public function deleteAccount($id)
    {
        $user = UserModel::find($id);
        if (!$user) {
            throw new \Exception('用户不存在');
        }

        $user->delete();

        return ['id' => $id];
    }
}