<?php

/**
 * 私聊相关Api
 * @author benzhan
 */
class PersonController extends BaseController {
    protected $ajaxLoginActions = [
        'msg',
        'sendMsg',
        'repealMsg',
        'sendFile',
    ];

    public function __construct() {
        parent::__construct(true);
    }

    /**
     * 私聊 获取最新消息
     * @author benzhan
     */
    public function actionNewMsg($args) {
        $rules = [
            'session_id' => ['string', 'desc' => '会话id'],
            'client_hash' => ['string', 'nullable' => true, 'desc' => '客户端上的最新消息的hash'],
        ];
        Param::checkParam2($rules, $args);

        $load_type = 0;
        return $this->_msg($args['session_id'], $load_type, $args['client_hash']);
    }

    /**
     * 私聊 获取历史消息
     * @author benzhan
     */
    public function actionHistoryMsg($args) {
        $rules = [
            'session_id' => ['string', 'desc' => '会话id'],
            'client_hash' => ['string', 'desc' => '客户端上的最旧消息的hash'],
        ];
        Param::checkParam2($rules, $args);

        $load_type = -1;
        return $this->_msg($args['session_id'], $load_type, $args['client_hash']);
    }

    /**
     * 获取消息列表
     * @param $session_id string 会话id
     * @param $load_type int 加载方式：-1:历史消息, 0:最新消息
     * @param $client_hash string 客户端的hash
     *
     * @return array
     */
    private function _msg($session_id, $load_type, $client_hash) {
        $where = compact('session_id');
        $userId = User::getUserId();
        if ($userId) {
            $where['user_id'] = $userId;
        }

        $keyWord = [
            '_field' => 'is_group, read_hash, read_num',
        ];

        $objSession = new Session();
        $row = $objSession->objTable->getRow($where, $keyWord);
        if (!$row) {
            // 私聊的情况，没有会话，也要返回userMap
            $parts = explode('-', $session_id);
            $userMap = null;
            if (count($parts) > 1) {
                $userMap = $objSession->getUserMap($parts);
            }

            return [
                'userMap' => $userMap,
                'list' => [],
                'need_clear' => false,
            ];
        } else if ($row['is_group']) {
            Response::error(CODE_NO_PERMITION, 'session is not personal');
        }

        $data = $objSession->getMsgList($session_id, $client_hash, $load_type, 0);
        if ($userId) {
            $last = end($data['list']);
            $lastNum = $last['msg_num'];
            if ($lastNum > $row['read_num']) {
                $objSession->updateState($session_id, ['read_num' => $lastNum], ['user_id' => $userId]);
            }
        }

        $data['list'] = array_filter($data['list'], function ($v) {
            return $v['state'] == 1;
        });
        $data['list'] = array_values($data['list']);

        return $data;
    }

    /**
     * 发送私聊消息
     * @author solu
     * @param $args
     * @return array
     */
    public function actionSendMsg($args) {
        $rules = [
            'session_id' => ['string', 'desc' => '会话id'],
            'msg_type' => ['int', 'nullable' => true, 'default' => 0, 'desc' => '消息类型：0:文本,1:图片,2:视频'],
            'msg' => ['string', 'desc' => '内容'],
        ];
        Param::checkParam2($rules, $args);

        $userId = User::getUserId();
        $objSession = new Session();
        $data = [];
        try {
            $data = $objSession->sendPersonMsg($userId, $args['session_id'], $args['msg_type'], $args['msg']);
        } catch (Exception $e) {
            Response::error($e->getCode(), $e->getMessage());
        }

        return $data;
    }

    /**
     * 撤销消息
     * @author solu
     * @param $args
     */
    public function actionRepealMsg($args) {
        $rules = [
            'session_id' => ['string', 'desc' => '会话id'],
            'hash' => ['string', 'desc' => '消息hash'],
        ];
        Param::checkParam2($rules, $args);

        $userId = User::getUserId();
        $objMsg = new PersonMsg();

        try {
            $objMsg->repeal($userId, $args['session_id'], $args['hash']);
        } catch (Exception $e) {
            Response::error($e->getCode(), $e->getMessage());
        }
    }

    /**
     * 私聊 发送多媒体消息
     * @author solu
     * @param $args
     * @return array
     */
    public function actionSendFile($args) {
        $args = array_merge($args, $_FILES);
        $rules = [
            'to_user' => ['string', 'desc' => '群id'],
            'res' => ['array', 'desc' => '资源文件'],
        ];
        Param::checkParam2($rules, $args);

        $data = null;
        try {
            $msgType = FileUrl::getType($args['res']['type']);
            $maxSize = 1000 * 1000; // 默认最大1MB
            switch ($msgType) {
                case FileUrl::TYPE_IMAGE:
                    $maxSize = 1000 * 1000; // 图片最大1MB
                    break;
                case FileUrl::TYPE_VIDEO:
                    $maxSize = 3000 * 1000; // 视频最大3MB
                    break;
                case FileUrl::TYPE_AUDIO:
                    $maxSize = 2000 * 1000; // 音频最大2MB
                    break;
                default:
                    Response::error(CODE_PARAM_ERROR, 'unknown type:' . $args['res']['type']);
            }

            $size = filesize($args['res']['tmp_name']);
            if ($size > $maxSize) {
                Response::error(CODE_PARAM_ERROR, "file is too big. size:{$size}");
            }

            $objFile = new FileUrl();
            $url = $objFile->getFileUrl($args['res']['tmp_name'], $args['res']['name'], $args['res']['type']);
            $url = awsReplaceImg($url);
            $msg = Utils::encodeRC4($url);
            $userId = User::getUserId();

            $extInfo = [];
            // 处理封面图
            if ($msgType == FileUrl::TYPE_VIDEO) {
                $cover_url = $objFile->getVideoCover($args['res']['tmp_name'], $args['res']['name']);
                $cover_url && $extInfo['cover_url'] = awsReplaceImg($cover_url);
            }

            $objSession = new Session();
            $sessionId = Session::getPersonSessionId($userId, $args['to_user']);
            $data = $objSession->sendPersonMsg($userId, $sessionId, $msgType, $msg, false, $extInfo);
        } catch (Exception $e) {
            Response::error($e->getCode(), $e->getMessage());
        }

        return $data;
    }
}