package com.linghu.controller;

import com.alibaba.excel.EasyExcel;
import com.baomidou.mybatisplus.core.conditions.query.LambdaQueryWrapper;
import com.baomidou.mybatisplus.core.conditions.update.LambdaUpdateWrapper;
import com.baomidou.mybatisplus.extension.plugins.pagination.Page;
import com.linghu.listener.QuestionExcelListener;
import com.linghu.model.common.ResponseResult;
import com.linghu.model.dto.KeywordDto;
import com.linghu.model.entity.Question;
import com.linghu.model.excel.KeywordExcel;
import com.linghu.model.excel.QuestionExcel;
import com.linghu.service.QuestionService;
import io.swagger.annotations.Api;
import io.swagger.annotations.ApiOperation;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.http.HttpHeaders;
import org.springframework.http.MediaType;
import org.springframework.http.ResponseEntity;
import org.springframework.transaction.annotation.Transactional;
import org.springframework.web.bind.annotation.*;
import org.springframework.web.multipart.MultipartFile;

import java.io.ByteArrayOutputStream;
import java.io.IOException;
import java.util.ArrayList;
import java.util.Arrays;
import java.util.List;
import java.util.Objects;
import java.util.stream.Collectors;

import static jdk.nashorn.internal.runtime.regexp.joni.Config.log;

@RestController
@RequestMapping("/question")
@Api(value = "提问词相关接口", tags = "订单管理-提问词")
public class QuestionController {

    @Autowired
    private QuestionService questionService;

    @PostMapping
    @ApiOperation(value = "添加提问词")
    @Transactional
    public ResponseResult<List<Question>> add(@RequestBody KeywordDto keywordDto) {

        List<Question> questionList = Arrays.stream(keywordDto.getQuestions().split("\\n"))
                .filter(q -> !q.trim().isEmpty())
                .map(q -> {
                    Question question = new Question();
                    question.setKeyword_id(keywordDto.getKeyword_id());
                    question.setQuestion(q.trim());
                    question.setStatus("pending");

                    return question;
                }).collect(Collectors.toList());

        boolean success = questionService.saveBatch(questionList);
        if (success) {
            return ResponseResult.success(questionList);
        }
        return ResponseResult.error("添加提问词失败");
    }

//    @DeleteMapping("/{questionId}")
//    @ApiOperation(value = "删除提问词")
//    public ResponseResult<Void> delete(@PathVariable Integer questionId) {
//
//        boolean success = questionService.removeById(questionId);
//        if (success) {
//            return ResponseResult.success();
//        }
//        return ResponseResult.error("删除提问词失败");
//    }

    @PutMapping
    @ApiOperation(value = "修改提问词")
    @Transactional
    public ResponseResult<List<Question>> update(@RequestBody KeywordDto keywordDto) {
        //查询question的状态
       //遍历
        for (Question q : keywordDto.getQuestionList()) {
            if ("success".equals(q.getStatus())) {
                return ResponseResult.error("该提问词已采集");
            }
        }
         questionService.updateBatchById(keywordDto.getQuestionList());

//        if (!"notSubmitted".equals(keywordDto.getStatus() )){
//            return ResponseResult.error("该关键词已提交或者已采集完成不允许修改提问词！");
//        }
//        LambdaQueryWrapper<Question> queryWrapper = new LambdaQueryWrapper<>();
//        queryWrapper.eq(Question::getKeyword_id, keywordDto.getKeyword_id());
//        questionService.remove(queryWrapper);

//        List<Question> questionList = Arrays.stream(keywordDto.getQuestions().split("\\n"))
//                .filter(q -> !q.trim().isEmpty())
//                .map(q -> {
//                    Question question = new Question();
//                    question.setKeyword_id(keywordDto.getKeyword_id());
//                    question.setQuestion(q.trim());
//                    question.setStatus("pending");
//
//                    return question;
//                }).collect(Collectors.toList());

//         questionService.saveBatch(questionList);

         return ResponseResult.success();


    }

    @PutMapping("/update")
    @ApiOperation(value = "修改单个提问词")
    public ResponseResult<Void> update(@RequestBody Question questions) {
        boolean success = questionService.updateById(questions);
        if (success) {
            return ResponseResult.success();
        }
        return ResponseResult.error("更新提问词失败");
    }

     @DeleteMapping("/batch")
     @Transactional
     @ApiOperation(value = "批量删除提问词")
     public ResponseResult<Void> batchDelete(@RequestBody List<Integer> questionIds) {
         System.out.println(questionIds.toString());
        questionService.removeByIds(questionIds);
        return ResponseResult.success();
     }

    @GetMapping("/list")
    @ApiOperation("根据关键词查询提问词列表")
    public ResponseResult<List<Question>> list(Integer keyword_id) {
        LambdaQueryWrapper<Question> queryWrapper = new LambdaQueryWrapper<>();
        queryWrapper.eq(Question::getKeyword_id, keyword_id);
        List<Question> list = questionService.list(queryWrapper);
        return ResponseResult.success(list);

    }

    // 下载模板
    @PostMapping("/downloadTemplate")
    @ApiOperation("下载模板")
    public ResponseEntity<byte[]> downloadTemplate() throws IOException {
        ByteArrayOutputStream out = new ByteArrayOutputStream();
        EasyExcel.write(out, QuestionExcel.class).sheet("提问词模板").doWrite(new ArrayList<>());

        return ResponseEntity.ok()
                .header(HttpHeaders.CONTENT_DISPOSITION, "attachment;filename=question_template.xlsx")
                .contentType(MediaType.APPLICATION_OCTET_STREAM)
                .body(out.toByteArray());
    }

    // 导入文件
    @PostMapping("/import")
    @ApiOperation("导入提问词词数据")
    public ResponseResult<String> importPlatforms(@RequestParam("file") MultipartFile file) {
        try {
            if (file.isEmpty()) {
                return ResponseResult.error("上传文件不能为空");
            }
            // 创建数据监听器
            QuestionExcelListener listener = new QuestionExcelListener();
            EasyExcel.read(file.getInputStream(), QuestionExcel.class, listener)
                    .sheet()
                    .doRead();
            // 获取并合并关键词
            String mergedKeywords = String.join("\n", listener.getMergedKeywords());
            return ResponseResult.success(mergedKeywords);
        } catch (IOException e) {
            return ResponseResult.error("文件读取失败：" + e.getMessage());
        } catch (Exception e) {
            return ResponseResult.error("导入失败：" + e.getMessage());
        }
    }
}