package cn.seecoder.data.server.schedule;

import cn.seecoder.data.server.domain.CoderDao;
import cn.seecoder.data.server.dto.coder.CoderDto;
import cn.seecoder.data.server.dto.coder.Response;
import cn.seecoder.data.server.repository.CoderRepository;
import cn.seecoder.data.server.service.ExtractionLogService;
import cn.seecoder.data.server.utils.aspects.dataExtraction.DataExtractor;
import cn.seecoder.data.server.utils.enums.ErrorCodeEnum;
import cn.seecoder.data.server.utils.exception.GlobalException;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.beans.factory.annotation.Value;
import org.springframework.core.ParameterizedTypeReference;
import org.springframework.http.HttpMethod;
import org.springframework.http.ResponseEntity;
import org.springframework.stereotype.Component;
import org.springframework.transaction.annotation.Transactional;
import org.springframework.web.client.RestTemplate;

import java.time.LocalDateTime;
import java.util.HashMap;
import java.util.LinkedList;
import java.util.List;
import java.util.Map;

@Component
public class CoderSchedule {

    @Value("${remoteUrls.coder}")
    private String coderBaseUrl;

    @Autowired
    private ExtractionLogService extractionLogService;

    @Autowired
    private CoderRepository coderRepository;

    @Autowired
    private RestTemplate restTemplate;

    private final String source1 = "coder1";

//    @Scheduled(cron = "00 00 00 * * ?")
    @DataExtractor(source1)
    @Transactional(rollbackFor = Exception.class)
    public void coderDataExtraction() throws Exception {
        LocalDateTime start = extractionLogService.getExtractionStartTime(source1,1);
        LocalDateTime middle = extractionLogService.getExtractionStartTime(source1);
        LocalDateTime end = extractionLogService.getExtractionEndTime(source1);

        Map<String,String> param1 = new HashMap<>();
        param1.put("startTime",start.toString());
        param1.put("endTime",middle.toString());
        System.out.println(param1);

        Map<String,String> param2 = new HashMap<>();
        param2.put("startTime",middle.toString());
        param2.put("endTime",end.toString());
        System.out.println(param2);


        String coderApi1 = "/xxx?startTime={startTime}&endTime={endTime}";
        String url = coderBaseUrl + coderApi1;
        ParameterizedTypeReference<Response<List<CoderDto>>> responseType = new ParameterizedTypeReference<Response<List<CoderDto>>>() {};

        //再pull一次上次pull的时间段的数据，将一些遗漏的数据存入数据库
        List<CoderDto> source = getCoderApi1Data(url,param1,responseType);
        source.forEach(data -> {
            CoderDao coderDao = coderRepository.findCoderDaoByRecordIdAndSubmitAt(data.getRecordId(),data.getSubmitAt());
            if (coderDao == null) {
                coderRepository.save(coderDtoAndDaoMapper(data));
            }
        });

        //pull本次的数据
        List<CoderDto> source2 = getCoderApi1Data(url,param2,responseType);
        source2.forEach(data -> {
            coderRepository.save(coderDtoAndDaoMapper(data));
        });
    }

    private List<CoderDto> getCoderApi1Data(String url1,Map<String,String> params,ParameterizedTypeReference<Response<List<CoderDto>>> responseType) throws Exception {
        ResponseEntity<Response<List<CoderDto>>> r = restTemplate.exchange(url1, HttpMethod.GET,null,responseType,params );
        Response<List<CoderDto>> body = r.getBody();
        if (body == null || body.getCode()!=200) throw new GlobalException(ErrorCodeEnum.SERVICE_ERROR_C0002);
        List<CoderDto> source = body.getSource();
        if(source == null || source.size()==0) throw new GlobalException(ErrorCodeEnum.SERVICE_ERROR_C0003);
        return source;
    }

    private CoderDao coderDtoAndDaoMapper(CoderDto data) {
        return CoderDao.builder()
                .commitId(data.getCommitId())
                .examId(data.getExamId())
                .endAt(data.getEndAt())
                .lastCommitAt(data.getLastCommitAt())
                .problemId(data.getProblemId())
                .recordId(data.getRecordId())
                .score(data.getScore())
                .userId(data.getUserId())
                .submitAt(data.getSubmitAt())
                .startAt(data.getStartAt())
                .id(null).createdAt(null).updatedAt(null)
                .build();
    }
}