<?php
/**
 * 智能客服控制器
 */

namespace addon\aikefu\shop\controller;

use addon\aikefu\model\Config as KefuConfigModel;
use addon\aikefu\model\Conversation as KefuConversationModel;
use addon\aikefu\model\Message as KefuMessageModel;
use app\shop\controller\BaseShop;

use think\facade\Db as Db;

/**
 * 智能客服 控制器
 */
class Kefu extends BaseShop
{
    /**
     * 智能客服默认页面
     * @return \think\response\View
     */
    public function index()
    {
        $kefu_config_model = new KefuConfigModel();
        $config_info = $kefu_config_model->getConfig($this->site_id, $this->app_module)["data"]["value"] ?? [];
        $this->assign("config_info", $config_info);
        return $this->fetch("kefu/index");
    }
    
    /**
     * 智能客服配置页
     * @return \think\response\View|\think\response\Json
     */
    public function config()
    {
        $kefu_config_model = new KefuConfigModel();

        if (request()->isJson()) {
            $api_key = input("api_key/s", "");//Dify API密钥
            $base_url = input("base_url/s", "https://api.dify.ai/v1");//API基础地址
            $chat_endpoint = input("chat_endpoint/s", "/chat-messages");//聊天接口端点
            $status = input("status/d", 0);//状态

            $data = array(
                "api_key" => $api_key,
                "base_url" => $base_url,
                "chat_endpoint" => $chat_endpoint,
                "status" => $status
            );
            $result = $kefu_config_model->setConfig($data, $this->site_id, $this->app_module);
            return $result;
        } else {
            $config_info = $kefu_config_model->getConfig($this->site_id, $this->app_module)['data']['value'] ?? [];
            $this->assign("config_info", $config_info);
            return $this->fetch("kefu/config");
        }
    }

    /**
     * 会话管理列表
     * @return \think\response\View
     */
    public function conversation()
    {
        return $this->fetch("kefu/conversation");
    }

    /**
     * 获取会话列表
     * @return \think\response\Json
     */
    public function getConversationList()
    {
        $page = input("page/d", 1);
        $limit = input("limit/d", 10);
        $user_id = input("user_id/s", "");
        $status = input("status/s", "");

        $kefu_conversation_model = new KefuConversationModel();
        $condition = [[ 'site_id', '=', $this->site_id ]];

        if (!empty($user_id)) {
            $condition[] = ['user_id', '=', $user_id];
        }

        if ($status !== '') {
            $condition[] = ['status', '=', $status];
        }

        $conversation_list = $kefu_conversation_model->getConversationList($condition, '*', 'update_time desc', $page, $limit);

        // 适配layui table的返回格式
        $result = [
            'code' => 0, // layui table要求成功状态码为0
            'msg' => '获取会话列表成功',
            'count' => $conversation_list['total'], // 总记录数
            'data' => $conversation_list['data'] // 数据列表
        ];

        return json($result);
    }

    /**
     * 获取会话信息
     * @return \think\response\Json
     */
    public function getConversationInfo()
    {
        $conversation_id = input("conversation_id/s", "");

        if (empty($conversation_id)) {
            return $this->error('会话ID不能为空');
        }

        $kefu_conversation_model = new KefuConversationModel();
        $conversation_info = $kefu_conversation_model->getConversationInfo([
            ['site_id', '=', $this->site_id],
            ['conversation_id', '=', $conversation_id]
        ]);

        if (empty($conversation_info)) {
            return $this->error('会话不存在');
        }

        return $this->success('获取会话信息成功', null, $conversation_info);
    }

    /**
     * 结束会话
     * @return \think\response\Json
     */
    public function endConversation()
    {
        $id = input("id/d", "");

        if (empty($id)) {
            return $this->error('会话ID不能为空');
        }

        $kefu_conversation_model = new KefuConversationModel();
        $result = $kefu_conversation_model->updateConversation(
            ['status' => 0],
            [
                ['id', '=', $id],
                ['site_id', '=', $this->site_id]
            ]
        );

        return $this->success('会话已结束', null, $result);
    }

    /**
     * 删除会话
     * @return \think\response\Json
     */
    public function deleteConversation()
    {
        $id = input("id/d", "");

        if (empty($id)) {
            return $this->error('会话ID不能为空');
        }

        $kefu_conversation_model = new KefuConversationModel();
        $kefu_message_model = new KefuMessageModel();

        // 开启事务
        Db::startTrans();

        try {
            // 删除会话关联的消息
            $conversation_info = $kefu_conversation_model->getConversationInfo([
                ['id', '=', $id],
                ['site_id', '=', $this->site_id]
            ]);

            if (!empty($conversation_info)) {
                $kefu_message_model->deleteMessage([
                    ['site_id', '=', $this->site_id],
                    ['conversation_id', '=', $conversation_info['conversation_id']]
                ]);
            }

            // 删除会话
            $result = $kefu_conversation_model->deleteConversation([
                ['id', '=', $id],
                ['site_id', '=', $this->site_id]
            ]);

            // 提交事务
            Db::commit();

            return $this->success('会话已删除', null, $result);
        } catch (\Exception $e) {
            // 回滚事务
            Db::rollback();
            return $this->error($e->getMessage());
        }
    }

    /**
     * 消息管理列表
     * @return \think\response\View
     */
    public function message()
    {
        $conversation_id = input("conversation_id/s", "");
        $this->assign("conversation_id", $conversation_id);
        return $this->fetch("kefu/message");
    }

    /**
     * 获取消息列表
     * @return \think\response\Json
     */
    public function getMessageList()
    {
        $page = input("page/d", 1);
        $limit = input("limit/d", 50);
        $conversation_id = input("conversation_id/s", "");

        $kefu_message_model = new KefuMessageModel();
        $condition = [
            ['site_id', '=', $this->site_id]
        ];

        // 只有当会话ID不为空时才添加会话ID条件
        if (!empty($conversation_id)) {
            $condition[] = ['conversation_id', '=', $conversation_id];
        }

        $message_list = $kefu_message_model->getMessageList($condition, '*', 'create_time asc', $page, $limit);
        // 适配layui table的返回格式
        $result = [
            'code' => 0, // layui table要求成功状态码为0
            'msg' => '获取消息列表成功',
            'count' => $message_list['total'], // 总记录数
            'data' => $message_list['data'] // 数据列表
        ];

        return json($result);
    }
}