package cc.mrbird.febs.ai.service.impl;

import cc.mrbird.febs.ai.controller.enumerates.AiTypeEnum;
import cc.mrbird.febs.ai.entity.AiMemberTalk;
import cc.mrbird.febs.ai.entity.AiMemberTalkItem;
import cc.mrbird.febs.ai.entity.AiProductRoleLink;
import cc.mrbird.febs.ai.mapper.AiMemberTalkMapper;
import cc.mrbird.febs.ai.req.ai.AiMessage;
import cc.mrbird.febs.ai.req.ai.AiRequest;
import cc.mrbird.febs.ai.req.memberTalk.ApiMemberTalkAnswerDto;
import cc.mrbird.febs.ai.req.memberTalk.ApiMemberTalkDto;
import cc.mrbird.febs.ai.req.memberTalk.ApiMemberTalkItemPageDto;
import cc.mrbird.febs.ai.res.ai.AiResponse;
import cc.mrbird.febs.ai.res.memberTalk.ApiMemberTalkVo;
import cc.mrbird.febs.ai.service.AiMemberTalkItemService;
import cc.mrbird.febs.ai.service.AiMemberTalkService;
import cc.mrbird.febs.ai.service.AiProductRoleLinkService;
import cc.mrbird.febs.ai.service.AiService;
import cc.mrbird.febs.ai.utils.UUID;
import cc.mrbird.febs.common.entity.FebsResponse;
import cc.mrbird.febs.common.exception.FebsException;
import cc.mrbird.febs.common.utils.LoginUserUtil;
import cn.hutool.core.util.ObjectUtil;
import cn.hutool.core.util.StrUtil;
import cn.hutool.json.JSONUtil;
import com.baomidou.mybatisplus.core.conditions.query.LambdaQueryWrapper;
import com.baomidou.mybatisplus.core.toolkit.Wrappers;
import com.baomidou.mybatisplus.extension.service.impl.ServiceImpl;
import lombok.RequiredArgsConstructor;
import lombok.extern.slf4j.Slf4j;
import org.springframework.stereotype.Service;
import org.springframework.transaction.annotation.Transactional;

import java.util.Date;
import java.util.List;
import java.util.function.Consumer;

/**
 * AI用户对话训练记录 Service实现类
 *
 * @author yourname
 * @date 2025-07-29
 */
@Slf4j
@Service
@RequiredArgsConstructor
public class AiMemberTalkServiceImpl extends ServiceImpl<AiMemberTalkMapper, AiMemberTalk> implements AiMemberTalkService {

    private final AiMemberTalkMapper aiMemberTalkMapper;
    private final AiProductRoleLinkService aiProductRoleLinkService;
    private final AiMemberTalkItemService aiMemberTalkItemService;
    private final AiService aiService;


    @Override
    public AiMemberTalk getById(String id) {
        return aiMemberTalkMapper.selectById( id);
    }

    @Override
    @Transactional
    public FebsResponse start(ApiMemberTalkDto dto) {

        String memberUuid = LoginUserUtil.getLoginUser().getMemberUuid();
        String productId = dto.getId();

        LambdaQueryWrapper<AiProductRoleLink> productLinkQuery = Wrappers.lambdaQuery(AiProductRoleLink.class);
        productLinkQuery.eq(AiProductRoleLink::getProductId,productId);
        productLinkQuery.last("limit 1");
        AiProductRoleLink aiProductRoleLink = aiProductRoleLinkService.getByQuery(productLinkQuery);
        if(ObjectUtil.isNull(aiProductRoleLink)){
            throw new FebsException("产品AI陪练不存在");
        }

        Date nowTime = new Date();
        LambdaQueryWrapper<AiMemberTalk> query = Wrappers.lambdaQuery(AiMemberTalk.class);
        query.eq(AiMemberTalk::getMemberId,memberUuid);
        query.eq(AiMemberTalk::getProductId,productId);
        query.last("limit 1");
        AiMemberTalk aiMemberTalk = this.getByQuery(query);
        if (ObjectUtil.isNull(aiMemberTalk)){
            aiMemberTalk = this.add(memberUuid,productId,nowTime);
        }

        List<AiMessage> aiMessageDtoList = aiMemberTalkItemService.getQuestionUpDownContext(aiMemberTalk.getId(),AiTypeEnum.QUESTION.getCode());

        AiResponse aiResponse = aiService.start(aiMessageDtoList,AiTypeEnum.QUESTION.getCode(),aiProductRoleLink.getProductRoleId(),AiTypeEnum.QUESTION.getName(), null);
        if(aiResponse.getCode().equals("200")){
            aiMemberTalkItemService.add(memberUuid,aiMemberTalk.getId(),1,aiResponse.getResContext(),nowTime);
            this.updateTimeUpdate(nowTime,aiMemberTalk.getId());
        }else{
            throw new FebsException(aiResponse.getDescription());
        }
        ApiMemberTalkVo apiMemberTalkVo = new ApiMemberTalkVo();
        apiMemberTalkVo.setMemberTalkId(aiMemberTalk.getId());
        apiMemberTalkVo.setType(1);
        apiMemberTalkVo.setContext(aiResponse.getResContext());
        return new FebsResponse().success().data(apiMemberTalkVo);
    }

    @Override
    public void startStream(ApiMemberTalkDto dto, Consumer<AiResponse> callback) {
        try {
            String memberUuid = LoginUserUtil.getLoginUser().getMemberUuid();
            String productId = dto.getId();

            LambdaQueryWrapper<AiProductRoleLink> productLinkQuery = Wrappers.lambdaQuery(AiProductRoleLink.class);
            productLinkQuery.eq(AiProductRoleLink::getProductId, productId);
            productLinkQuery.last("limit 1");
            AiProductRoleLink aiProductRoleLink = aiProductRoleLinkService.getByQuery(productLinkQuery);
            if (ObjectUtil.isNull(aiProductRoleLink)) {
                AiResponse aiResponse = new AiResponse();
                aiResponse.setCode("500");
                aiResponse.setDescription("产品AI陪练不存在");
                callback.accept(aiResponse);
                return;
            }

            // 构造AI请求
            AiRequest aiRequest = new AiRequest();
            aiRequest.setLinkId(aiProductRoleLink.getProductRoleId());
            aiRequest.setPromptTemplate(aiProductRoleLink.getProductRoleId());
            aiRequest.setContent("<strong>\"生成题目\"</strong>");

            // 定义AI服务回调处理
            Consumer<AiResponse> aiCallback = aiResponse -> {
                Date nowTime = new Date();
                LambdaQueryWrapper<AiMemberTalk> query = Wrappers.lambdaQuery(AiMemberTalk.class);
                query.eq(AiMemberTalk::getMemberId, memberUuid);
                query.eq(AiMemberTalk::getProductId, productId);
                query.last("limit 1");
                AiMemberTalk aiMemberTalk = this.getByQuery(query);
                if (ObjectUtil.isNull(aiMemberTalk)) {
                    aiMemberTalk = this.add(memberUuid, productId, nowTime);
                }
                try {
                    if (aiResponse.getCode().equals("200")) {
                        // 如果是最终结果（包含报告）
                        if (aiResponse.getReport() != null) {
                            // 保存完整响应到数据库
                            aiMemberTalkItemService.add(memberUuid, aiMemberTalk.getId(), 1, aiResponse.getResContext(), nowTime);
                            this.updateTimeUpdate(nowTime, aiMemberTalk.getId());

                            callback.accept(aiResponse);
                        } else {
                            // 流式响应片段
                            callback.accept(aiResponse);
                        }
                    } else {
                        callback.accept(aiResponse);
                    }
                } catch (Exception e) {
                    log.error("处理AI响应异常", e);
                    callback.accept(aiResponse);
                }
            };

            // 调用AI服务的流式接口
            aiService.streamQuestion(aiRequest, aiCallback);

        } catch (Exception e) {
            log.error("流式调用start方法异常", e);

            AiResponse aiResponse = new AiResponse();
            aiResponse.setCode("500");
            aiResponse.setDescription("流式调用start方法异常");
            callback.accept(aiResponse);
        }
    }

    @Override
    public AiMemberTalk getByQuery(LambdaQueryWrapper<AiMemberTalk> query) {
        return aiMemberTalkMapper.selectOne( query);
    }

    @Override
    public void updateTimeUpdate(Date nowTime, String id) {
        aiMemberTalkMapper.update(
                null,
                Wrappers.lambdaUpdate(AiMemberTalk.class)
                .set(AiMemberTalk::getUpdatedTime,nowTime)
                .eq(AiMemberTalk::getId,id));
    }


    public static final String ANSWER_FORMAT = "###题目：{}###用户回答：{}";
    @Override
    @Transactional
    public FebsResponse answer(ApiMemberTalkAnswerDto dto) {
        String memberUuid = LoginUserUtil.getLoginUser().getMemberUuid();
        String memberTalkId = dto.getId();
        AiMemberTalk aiMemberTalk = this.getById(memberTalkId);
        if (ObjectUtil.isNull(aiMemberTalk)){
            throw new FebsException("产品AI陪练对话不存在");
        }

        LambdaQueryWrapper<AiProductRoleLink> productLinkQuery = Wrappers.lambdaQuery(AiProductRoleLink.class);
        productLinkQuery.eq(AiProductRoleLink::getProductId,aiMemberTalk.getProductId());
        productLinkQuery.last("limit 1");
        AiProductRoleLink aiProductRoleLink = aiProductRoleLinkService.getByQuery(productLinkQuery);
        if(ObjectUtil.isNull(aiProductRoleLink)){
            throw new FebsException("产品AI陪练不存在");
        }

        String reqContext = dto.getReqContext();

        LambdaQueryWrapper<AiMemberTalkItem> memberTalkItemQuery = Wrappers.lambdaQuery(AiMemberTalkItem.class);
        memberTalkItemQuery.eq(AiMemberTalkItem::getMemberId,memberUuid);
        memberTalkItemQuery.eq(AiMemberTalkItem::getMemberTalkId,memberTalkId);
        memberTalkItemQuery.eq(AiMemberTalkItem::getType,1);
        memberTalkItemQuery.orderByDesc(AiMemberTalkItem::getCreatedTime);
        memberTalkItemQuery.last("limit 1");
        AiMemberTalkItem aiMemberTalkItem = aiMemberTalkItemService.getByQuery(memberTalkItemQuery);
        aiMemberTalkItemService.add(memberUuid,aiMemberTalk.getId(),2,reqContext,new Date());

        String format = StrUtil.format(ANSWER_FORMAT, aiMemberTalkItem.getContext(), reqContext);
        log.info("format:{}",format);
//        AiResponse aiResponse = aiService.start(aiProductRoleLink.getProductRoleId(), format);


        List<AiMessage> aiMessageDtoList = aiMemberTalkItemService.getQuestionUpDownContext(aiMemberTalk.getId(),AiTypeEnum.ANSWER.getCode());
        AiResponse aiResponse = aiService.start(aiMessageDtoList,AiTypeEnum.ANSWER.getCode(),aiProductRoleLink.getProductRoleId(), reqContext,aiMemberTalkItem.getContext());
        String context = null;
        if(aiResponse.getCode().equals("200")){
            Date nowTime = new Date();
            context = String.valueOf(JSONUtil.parse(aiResponse.getReport()));
            if ("null".equals( context)){
                context = aiResponse.getResContext();
            }
            aiMemberTalkItemService.add(memberUuid,aiMemberTalk.getId(),3, context,nowTime);
            this.updateTimeUpdate(nowTime,aiMemberTalk.getId());
        }else{
            throw new FebsException(aiResponse.getDescription());
        }
        ApiMemberTalkVo apiMemberTalkVo = new ApiMemberTalkVo();
        apiMemberTalkVo.setMemberTalkId(aiMemberTalk.getId());
        apiMemberTalkVo.setType(3);
        apiMemberTalkVo.setContext(context);
        return new FebsResponse().success().data(apiMemberTalkVo);
    }
    @Override
    public AiMemberTalk add(String memberUuid, String productId, Date nowTime) {
        AiMemberTalk aiMemberTalk = new AiMemberTalk();
        aiMemberTalk.setId(UUID.getSimpleUUIDString());
        aiMemberTalk.setCreatedTime(nowTime);
        aiMemberTalk.setMemberId(memberUuid);
        aiMemberTalk.setProductId(productId);
        aiMemberTalkMapper.insert(aiMemberTalk);
        return aiMemberTalk;
    }

    @Override
    public FebsResponse historyPage(ApiMemberTalkItemPageDto dto) {

        String memberUuid = LoginUserUtil.getLoginUser().getMemberUuid();
        dto.setMemberUuid(memberUuid);
        return aiMemberTalkItemService.historyPage(dto);
    }
}