<?php

namespace App\Services;

use App\Exceptions\TencentImFriendException;
use App\Models\User;
use App\Models\UserFriendApplyRecord;
use App\Traits\TencentIm;
use Illuminate\Support\Facades\DB;

class TencentImFriendService
{
    use TencentIm;

    public const ADD_FRIEND_TYPE_SINGLE = 'Add_Type_Single';   // 表示单向加好友
    public const ADD_FRIEND_TYPE_BOTH   = 'Add_Type_Both';   // 表示双向加好友
    public const IM_IDENTIFIER_PREFIX   = 'IM_USER_';

    public const CHECK_FRIEND_TYPE_SINGLE = 'CheckResult_Type_Single'; // 只会检查 From_Account 的好友表中是否有 To_Account，不会检查 To_Account 的好友表中是否有 From_Account
    public const CHECK_FRIEND_TYPE_BOTH   = 'CheckResult_Type_Both'; // 既会检查 From_Account 的好友表中是否有 To_Account，也会检查 To_Account 的好友表中是否有 From_Account

    public const ADD_FRIEND_ADD_SOURCE_TYPE_ADDRESS_BOOK = 'AddSource_Type_100';   // 加好友来源 通讯录

    public const TENCENT_REST_APIS = [
        'friendAddItem' => 'v4/sns/friend_add',   // 单个添加好友,
        'friendGet'     => 'v4/sns/friend_get', // 拉取好友,
        'friendCheck'   => 'v4/sns/friend_check', // 校验好友
    ];

    public static function verifyUserApplyFriendExists(User $fromUser, User $toUser)
    {
    }

    // 添加好友记录
    public function addApplyFriendRecord(User $user, array $options = [])
    {
        try {
            DB::beginTransaction();

            $toUser = User::find($options['to_user_id']);

            if (!$toUser) {
                throw new TencentImFriendException('好友账号不存在');
            }

            // 检测是否已经有记录

            $friendApplyRecordModel = UserFriendApplyRecord::query()
                ->where(['from_user_id' => $user->id, 'to_user_id' => $toUser->id])
                ->latest()
                ->first();

            if ($friendApplyRecordModel) {
                if (UserFriendApplyRecord::APPLY_STATUS_100 === $friendApplyRecordModel->apply_status) {
                    throw new TencentImFriendException('已发出好友添加申请,请勿重复操作');
                }

                if (UserFriendApplyRecord::APPLY_STATUS_101 === $friendApplyRecordModel->apply_status) {
                    throw new TencentImFriendException('已经是好友关系,请勿重复操作');
                }

                if (UserFriendApplyRecord::APPLY_STATUS_101 === $friendApplyRecordModel->apply_status) {
                    throw new TencentImFriendException('已经是好友关系,请勿重复操作');
                }
            }

            if (!$friendApplyRecordModel) {
                $friendApplyRecordModel = new UserFriendApplyRecord();
            }

            // 添加发起申请记录
            $applyData = [
                'from_user_id'   => $user->id,
                'to_user_id'     => $toUser->id,
                'type'           => UserFriendApplyRecord::APPLY_TYPE_100,
                'apply_status'   => UserFriendApplyRecord::APPLY_STATUS_102,
                'apply_raw_data' => [
                    'remark' => $options['remark']   ?? '',
                    'group'  => $options['group_id'] ?? '',
                ],
            ];

            $friendApplyRecordModel->fill($applyData);

            // 添加接收

            if (!$friendApplyRecordModel->save()) {
                throw new \Exception('写入好友申请记录失败');
            }
            DB::commit();

            return $friendApplyRecordModel;
        } catch (\Exception $e) {
            DB::rollBack();

            return ['error' => $e->getMessage()];
        } catch (TencentImFriendException $e) {
            DB::rollBack();

            return ['error' => $e->getMessage()];
        }
    }

    /**
     * 发起添加 IM 好友  （单个用户）.
     *
     * @return \Psr\Http\Message\ResponseInterface
     *
     * @throws TencentImFriendException
     * @throws \App\Exceptions\TencentImAccountException
     * @throws \App\Exceptions\TencentImException
     * @throws \GuzzleHttp\Exception\GuzzleException
     */
    public function friendAddItem(string $fromAccount, string $toAccount, array $options = [])
    {
        // TODO 请求添加好友前先拉取好友状态

        $this->restApiName = self::TENCENT_REST_APIS['friendAddItem'];
        $baseApiHost       = $this->getTencentImRestApiBaseHost();
        $params            = self::prepareFriendAddItemOptions($fromAccount, $toAccount, $options);
        $apiResult         = $this->requestApi($baseApiHost, $params);
        self::verifyApiResult($apiResult);
        if ($apiResult['ResultItem'][0]['ResultInfo'] || (0 != $apiResult['ResultItem'][0]['ResultCode'])) {
            throw new TencentImFriendException('添加好友失败:  ' . $apiResult['ResultItem'][0]['ResultInfo']);
        }

        return $apiResult;
    }

    // 拉取好友
    public function friendGet(string $fromAccount, int $pageStartIndex = 0)
    {
        $this->restApiName = self::TENCENT_REST_APIS['friendGet'];
        $baseApiHost       = $this->getTencentImRestApiBaseHost();
        $params            = [
            'From_Account'     => $fromAccount,
            'StartIndex'       => $pageStartIndex,
            'StandardSequence' => $StandardSequence ?? 0,
            'CustomSequence'   => $CustomSequence   ?? 0,
        ];
        $apiResult = $this->requestApi($baseApiHost, $params);
        dd($apiResult);
    }

    // 检验好友
    public function friendCheck(string $fromAccount, array $toAccounts, string $checkType = self::ADD_FRIEND_TYPE_BOTH)
    {
        $this->restApiName = self::TENCENT_REST_APIS['friendCheck'];
        $baseApiHost       = $this->getTencentImRestApiBaseHost();
        $params            = [
            'From_Account' => $fromAccount,
            'To_Account'   => $toAccounts,
            'CheckType'    => 'CheckResult_Type_Both',
        ];
        $apiResult = $this->requestApi($baseApiHost, $params);
        self::verifyApiResult($apiResult);

        return $apiResult;
    }

    /**
     * 构建添加好友api 请求数组.
     *
     * @param string $fromAccount 需要添加好友的用户IM id
     * @param string $toAccount   被申请添加好友的用户IM id
     * @param string $options     ['AddType']  加好友方式
     * @param string $options     ['AddSource'] 好友来源
     * @param string $options     ['ForceAddFlags'] 管理员强制加好友标记：1表示强制加好友，0表示常规加好友方式
     * @param string $options     ['Remark'] 好友备注
     * @param string $options     ['AddWording'] 形成好友关系时的附言信息
     * @param string $options     ['GroupName'] 分组信息，添加好友时只允许设置一个分组
     *
     * @return array
     */
    public static function prepareFriendAddItemOptions(string $fromAccount, string $toAccount, array $options)
    {
        // string $addType = self::ADD_FRIEND_TYPE_BOTH,
        // string $addSource = self::ADD_FRIEND_ADD_SOURCE_TYPE_ADDRESS_BOOK,
        // string $remark = '',
        // bool $forceAddFlags = false
        $result = [
            'From_Account' => $fromAccount,
            //            'AddSource' => $options['AddSource'] ?? self::ADD_FRIEND_ADD_SOURCE_TYPE_ADDRESS_BOOK,  //好友来源
            'AddType'       => $options['AddType'] ?? self::ADD_FRIEND_TYPE_BOTH, // 加好友方式
            'ForceAddFlags' => empty($options['ForceAddFlags']) ? 0 : ($options['ForceAddFlags'] ? 1 : 0),         // 管理员强制加好友标记：1表示强制加好友，0表示常规加好友方式
        ];

        $AddFriendItem               = [];
        $AddFriendItem['To_Account'] = $toAccount;
        // 好友来源
        $AddFriendItem['AddSource'] = $options['AddSource'] ?? self::ADD_FRIEND_ADD_SOURCE_TYPE_ADDRESS_BOOK;

        // 好友备注
        if (!empty($options['Remark'])) {
            $AddFriendItem['Remark'] = $options['Remark'];
        }

        // 形成好友关系时的附言信息
        if (!empty($options['AddWording'])) {
            $AddFriendItem['AddWording'] = $options['AddWording'];
        }

        // 分组信息，添加好友时只允许设置一个分组
        if (!empty($options['GroupName'])) {
            $AddFriendItem['GroupName'] = $options['GroupName'] ? 1 : 0;
        }

        $result['AddFriendItem'][] = $AddFriendItem;

        unset($options, $AddFriendItem);

        return $result;
    }
}