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

import cc.mrbird.febs.ai.entity.*;
import cc.mrbird.febs.ai.mapper.AiProductQuestionMapper;
import cc.mrbird.febs.ai.req.AiProductQuestionAiDto;
import cc.mrbird.febs.ai.service.AiProductQuestionItemService;
import cc.mrbird.febs.ai.service.AiProductQuestionService;
import cc.mrbird.febs.ai.service.AiService;
import cc.mrbird.febs.ai.util.UUID;
import cc.mrbird.febs.common.entity.FebsResponse;
import cc.mrbird.febs.common.entity.QueryRequest;
import cn.hutool.core.collection.CollUtil;
import cn.hutool.core.util.ObjectUtil;
import cn.hutool.json.JSONArray;
import cn.hutool.json.JSONObject;
import cn.hutool.json.JSONUtil;
import com.baomidou.mybatisplus.core.conditions.query.LambdaQueryWrapper;
import com.baomidou.mybatisplus.core.metadata.IPage;
import com.baomidou.mybatisplus.core.toolkit.Wrappers;
import com.baomidou.mybatisplus.extension.plugins.pagination.Page;
import com.baomidou.mybatisplus.extension.service.impl.ServiceImpl;
import com.fasterxml.jackson.databind.JsonNode;
import com.fasterxml.jackson.databind.ObjectMapper;
import com.fasterxml.jackson.databind.SerializationFeature;
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;

/**
 * AI产品题目 Service实现类
 *
 * @author yourname
 * @date 2025-07-29
 */
@Slf4j
@Service
@RequiredArgsConstructor
public class AiProductQuestionServiceImpl extends ServiceImpl<AiProductQuestionMapper, AiProductQuestion> implements AiProductQuestionService {

    private final AiProductQuestionMapper aiProductQuestionMapper;
    private final AiProductQuestionItemService aiProductQuestionItemService;
    private final AiService aiService;

    @Override
    public AiProductQuestion getById(String id) {

        return aiProductQuestionMapper.selectById(id);
    }

    @Override
    public IPage<AiProductQuestion> listInPage(AiProductQuestion dto, QueryRequest request) {
        Page<AiProductQuestion> page = new Page<>(request.getPageNum(), request.getPageSize());
        LambdaQueryWrapper<AiProductQuestion> query = Wrappers.lambdaQuery(AiProductQuestion.class);
        query.ne(AiProductQuestion::getState, 2);
        Page<AiProductQuestion> pages = aiProductQuestionMapper.selectPage(page, query);
        return pages;
    }

    @Override
    public FebsResponse changeState(String id, Integer state) {
        AiProductQuestion entity = this.getById(id);
        if(ObjectUtil.isNotEmpty(entity)){
            this.update(null,
                    Wrappers.lambdaUpdate(AiProductQuestion.class)
                            .set(AiProductQuestion::getState, state)
                            .set(AiProductQuestion::getUpdatedTime, new Date())
                            .eq(AiProductQuestion::getId, id));
        }
        return new FebsResponse().success().message("操作成功");
    }

    @Override
    public FebsResponse add(AiProductQuestion dto) {

        List<AiProductQuestionItem> aiProductQuestionItems = dto.getAiProductQuestionItems();
        if(CollUtil.isEmpty(aiProductQuestionItems)){
            return new FebsResponse().fail().message("请添加答案选项");
        }
        //stream流操作aiProductQuestionItems，返回aiProductQuestionItems是否存在中correctAnswer为1的元素
        boolean hasCorrectAnswer = aiProductQuestionItems.stream().anyMatch(item -> item != null && item.getCorrectAnswer() != null && item.getCorrectAnswer() == 1);
        if (!hasCorrectAnswer) {
            return new FebsResponse().fail().message("请添加一项为正确的答案");
        }

        AiProductQuestion entity = new AiProductQuestion();
        entity.setId(UUID.getSimpleUUIDString());
        entity.setCompanyId(dto.getCompanyId());
        entity.setProductCategoryId(dto.getProductCategoryId());
        entity.setTitle(dto.getTitle());
        entity.setDifficulty(dto.getDifficulty());
        entity.setCreatedTime(new Date());
        this.save(entity);


        for (AiProductQuestionItem item : dto.getAiProductQuestionItems()){
            item.setId(UUID.getSimpleUUIDString());
            item.setProductQuestionId(entity.getId());
            item.setTitle(entity.getTitle());
            item.setCreatedTime(new Date());
            aiProductQuestionItemService.getBaseMapper().insert(item);
        }
        return new FebsResponse().success().message("操作成功");
    }



    @Override
    public FebsResponse update(AiProductQuestion dto) {
        String id = dto.getId();
        AiProductQuestion entity = this.getById(id);

        List<AiProductQuestionItem> aiProductQuestionItems = dto.getAiProductQuestionItems();
        if(CollUtil.isEmpty(aiProductQuestionItems)){
            return new FebsResponse().fail().message("请添加答案选项");
        }
        //stream流操作aiProductQuestionItems，返回aiProductQuestionItems是否存在中correctAnswer为1的元素
        boolean hasCorrectAnswer = aiProductQuestionItems.stream().anyMatch(item -> item != null && item.getCorrectAnswer() != null && item.getCorrectAnswer() == 1);
        if (!hasCorrectAnswer) {
            return new FebsResponse().fail().message("请添加一项为正确的答案");
        }
        if (ObjectUtil.isNotNull( entity)){
            this.update(null,
                    Wrappers.lambdaUpdate(AiProductQuestion.class)
                            .set(AiProductQuestion::getCompanyId, dto.getCompanyId())
                            .set(AiProductQuestion::getProductCategoryId, dto.getProductCategoryId())
                            .set(AiProductQuestion::getTitle, dto.getTitle())
                            .set(AiProductQuestion::getDifficulty, dto.getDifficulty())
                            .set(AiProductQuestion::getUpdatedTime, new Date())
                            .eq(AiProductQuestion::getId, id)
            );

            aiProductQuestionItemService.deleteByQuestionId(id);

            for (AiProductQuestionItem item : dto.getAiProductQuestionItems()){
                item.setId(UUID.getSimpleUUIDString());
                item.setProductQuestionId(entity.getId());
                item.setTitle(entity.getTitle());
                item.setCreatedTime(new Date());
                aiProductQuestionItemService.getBaseMapper().insert(item);
            }
        }
        return new FebsResponse().success().message("操作成功");
    }

    @Override
    public FebsResponse delete(String id) {
        AiProductQuestion entity = this.getById(id);
        if(ObjectUtil.isNotNull( entity)){
            this.update(null,
                    Wrappers.lambdaUpdate(AiProductQuestion.class)
                            .set(AiProductQuestion::getState, 2)
                            .set(AiProductQuestion::getUpdatedTime, new Date())
                            .eq(AiProductQuestion::getId, id));

        }
        return new FebsResponse().success().message("操作成功");
    }

    @Override
    public List<AiProductQuestion> questionTree() {

        return aiProductQuestionMapper.selectList(null);
    }

    @Override
    public List<AiProductQuestion> productQuestionTree(LambdaQueryWrapper<AiProductQuestion> aiProductQuestionLambdaQueryWrapper) {
        return aiProductQuestionMapper.selectList(aiProductQuestionLambdaQueryWrapper);
    }

    @Override
    public FebsResponse aiAdd(AiProductQuestionAiDto dto) {

        String jsonFormat = "{\"question_list\":[{\"title\": \"消费者对透明质酸的主要担忧是什么？\",\"answer_list\":[{\"answer\": \"消费者担心透明质酸维持时间短，效果不明显。\",\"type\": 1,\"analysis\": \"\"},{\"answer\": \"消费者担心透明质酸注射后可能出现移位、凹陷、馒化、僵硬以及炎症反应。\",\"type\": 1,\"analysis\": \"\"},{\"answer\": \"消费者的主要担忧包括效果不明显、维持时间短、注射后出现移位、凹陷、馒化、僵硬以及炎症反应。他们希望既达到理想效果，又避免这些副作用。\",\"type\": 2,\"analysis\": \"标准答案涵盖了消费者对透明质酸的所有主要担忧，既包括效果问题，也涵盖副作用风险，全面反映消费者心理需求。\"}]}]} ";
        dto.setJsonFormat(jsonFormat);
        String questionAndAnswerStr = aiService.llmInvokeNonStreaming(dto);
        System.out.println(questionAndAnswerStr);
        // 解析AI返回的结果
        List<JSONObject> questionList = parseAiQuestionResponse(questionAndAnswerStr);

        String productCategoryId = dto.getProductCategoryId();
        Integer difficulty = dto.getDifficulty();
        Date createdTime = new Date();
        // 处理解析后的问题列表
        for (JSONObject questionObj : questionList) {
            String title = questionObj.getStr("title");

            AiProductQuestion aiProductQuestion = new AiProductQuestion();
            aiProductQuestion.setId(UUID.getSimpleUUIDString());
            aiProductQuestion.setProductCategoryId(productCategoryId);
            aiProductQuestion.setTitle(title);
            aiProductQuestion.setDifficulty(difficulty);
            aiProductQuestion.setCreatedTime(createdTime);
            this.save(aiProductQuestion);

            JSONArray answerList = questionObj.getJSONArray("answer_list");
            System.out.println("问题: " + title);
            for (int i = 0; i < answerList.size(); i++) {
                JSONObject answer = answerList.getJSONObject(i);
                System.out.println("答案" + (i+1) + ": " + answer.getStr("answer"));
                System.out.println("类型: " + answer.getStr("type"));
                System.out.println("分析: " + answer.getStr("analysis"));
                AiProductQuestionItem aiProductQuestionItem = new AiProductQuestionItem();
                aiProductQuestionItem.setId(UUID.getSimpleUUIDString());
                aiProductQuestionItem.setProductQuestionId(aiProductQuestion.getId());
                aiProductQuestionItem.setTitle(aiProductQuestion.getTitle());
                aiProductQuestionItem.setAnswer(answer.getStr("answer"));
                aiProductQuestionItem.setCorrectAnswer(answer.getInt("type") == 2 ? 1 : 0);
                aiProductQuestionItem.setAnswerAnalysis(answer.getStr("analysis"));
                aiProductQuestionItem.setCreatedTime(createdTime);
                aiProductQuestionItemService.getBaseMapper().insert(aiProductQuestionItem);
            }
        }
        return new FebsResponse().success().message("操作成功");
    }

    /**
     * 解析AI返回的包含问题和答案的JSON字符串
     * @param aiResponse AI返回的原始响应字符串
     * @return 解析后的问题列表
     */
    public List<JSONObject> parseAiQuestionResponse(String aiResponse) {
        try {
            // 解析外层JSON
            JSONObject outerJson = JSONUtil.parseObj(aiResponse);

            // 提取output字段
            String output = outerJson.getStr("output");

            // 去除<start>和</start>标签，并清理多余字符
            String jsonContent = output.replace("<start>", "")
                    .replace("</start>", "")
                    .replace("\\n", "")
                    .replace("\\n", "")
                    .replace("\\\"", "\"")
                    .trim();

            // 解析内部JSON
            JSONObject innerJson = JSONUtil.parseObj(jsonContent);

            // 提取question_list
            JSONArray questionList = innerJson.getJSONArray("question_list");

            // 转换为List<JSONObject>返回
            return questionList.toList(JSONObject.class);

        } catch (Exception e) {
            log.error("解析AI问题响应失败: ", e);
            throw new RuntimeException("解析AI响应失败", e);
        }
    }

}