package edu.nju.service;

import edu.nju.dao.*;
import edu.nju.entities.*;
import edu.nju.model.ReviewWorkerVO;
import edu.nju.util.HTTP;
import org.json.JSONObject;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;

import java.util.ArrayList;
import java.util.List;

@Service
public class ReviewService {
    @Autowired
    ReviewItemDao itemDao;
    @Autowired
    ReviewJobDao jobDao;
    @Autowired
    ReviewAnswerDao answerDao;
    @Autowired
    ReviewGroupDao groupDao;
    @Autowired
    ReviewReportDao reportDao;
    @Autowired
    ReviewWorkerDao reviewWorkerDao;
    @Autowired
    ReviewCorrectAnswerDao reviewCorrectAnswerDao;

    public ReviewJob getJob(String job_id){
        return jobDao.findJob(job_id);
    }

    public List<ReviewJob> getJobs(){
        return jobDao.findJobs();
    }

    public ReviewAnswer getAnswerByWorkerReportItem(String reportId,String workerId,String itemId){
        return answerDao.findAnswerByWorkerReportItem(reportId,workerId, itemId);
    }

    public boolean saveAnswer(String itemId, String reportId,String workerId,String paperId, String jobId,List<String>answers,List<String>fileUrl){
        try {
            ReviewAnswer reviewAnswer=getAnswerByWorkerReportItem(reportId,workerId,itemId);
            if(reviewAnswer==null){
                reviewAnswer=new ReviewAnswer(itemId,reportId,answers,workerId,fileUrl,jobId,paperId);
            }
            else{
                reviewAnswer.setAnswers(answers);
                reviewAnswer.setFile_url(fileUrl);
            }
            answerDao.save(reviewAnswer);
            return true;
        } catch(Exception e) {
            e.printStackTrace();
            return false;
        }
    }

    public boolean saveCorrectAnswer(String itemId, String reportId,String workerId,String paperId, String jobId,List<String> answer,List<String>fileUrl,String grade){
        try {
            ReviewCorrectAnswer reviewCorrectAnswer=reviewCorrectAnswerDao.findCorrectAnswerByReportItem(reportId,itemId);
            if(reviewCorrectAnswer==null){
                reviewCorrectAnswer=new ReviewCorrectAnswer(itemId,reportId,answer,jobId,paperId,fileUrl,grade);
            }
            else{
                reviewCorrectAnswer.setCorrect_answer(answer);
                reviewCorrectAnswer.setFile_url(fileUrl);
            }
            reviewCorrectAnswerDao.save(reviewCorrectAnswer);
            return true;
        } catch(Exception e) {
            e.printStackTrace();
            return false;
        }
    }

    public List<ReviewReport>getReportsByWorkerJob(String worker_id,String job_id){
        List<String>reportIds = groupDao.getReportsByUserJob(worker_id, job_id);
        List<ReviewReport>reports=new ArrayList<>();
        if(reportIds==null||reportIds.size()==0){
            return null;
        }else{
            for(int i=0;i<reportIds.size();i++){
                reports.add(reportDao.findReviewReport(reportIds.get(i)));
            }
        }
        return reports;
    }

    public List<ReviewItem> getItemsByReport(String report_id){
        List<ReviewItem> items=itemDao.findItemsByReport(report_id);
        return items;
    }

    public List<String> getReportsByItem(String item_id){
        ReviewItem item=itemDao.findById(item_id);
        if(item==null){
            return null;
        }
        else{
            return item.getReport_id();
        }
    }

    public List<ReviewWorkerVO>getWorkersByJob(String jobId){
        List<ReviewWorker>reviewWorkers=reviewWorkerDao.getWorkersByJob(jobId);
        List<ReviewWorkerVO>reviewWorkerVOS=new ArrayList<>();
        try {
            for(int i=0;i<reviewWorkers.size();i++){
                ReviewWorker reviewWorker=reviewWorkers.get(i);
                String result = HTTP.sendGet("http://114.55.91.83:8191/api/user/" + reviewWorker.getOriginal_id(), "");
                String name="";
                String school="";
                if(result != null && !result.equals("")) {
                    JSONObject json = new JSONObject(result);
                    name=json.getString("name");
                    school=json.getString("school");
                }
                reviewWorkerVOS.add(new ReviewWorkerVO(reviewWorker,name,school));
            }
        } catch (Exception e) {
            e.printStackTrace();
        }
        return reviewWorkerVOS;
    }

    public List<ReviewAnswer>getItemReportJobAnswers(String itemId, String reportId,String jobId){
       return answerDao.getItemReportJobAnswers(itemId,reportId,jobId);
    }

    public boolean setGrade(String itemId, String reportId, String workerId,String grade){
        try {
            ReviewAnswer reviewAnswer=answerDao.findAnswerByWorkerReportItem(reportId,workerId,itemId);
            if(reviewAnswer==null){
                return false;
            }
            else{
                reviewAnswer.setGrade(grade);
            }
            return true;
        } catch(Exception e) {
            e.printStackTrace();
            return false;
        }
    }


}