package cn.com.qmth.am.controller;

import java.io.File;
import java.io.IOException;
import java.io.InputStream;
import java.io.PrintWriter;
import java.math.BigDecimal;
import java.util.ArrayList;
import java.util.Comparator;
import java.util.HashMap;
import java.util.HashSet;
import java.util.List;
import java.util.Map;
import java.util.Set;

import javax.servlet.http.HttpServletResponse;

import org.apache.commons.collections4.CollectionUtils;
import org.apache.commons.io.FileUtils;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RequestMethod;
import org.springframework.web.bind.annotation.RequestParam;
import org.springframework.web.bind.annotation.RestController;
import org.springframework.web.multipart.MultipartFile;

import com.alibaba.fastjson.util.IOUtils;
import com.qmth.boot.api.annotation.Aac;
import com.qmth.boot.api.constant.ApiConstant;
import com.qmth.boot.core.concurrent.service.ConcurrentService;

import cn.com.qmth.am.bean.DataKey;
import cn.com.qmth.am.config.SysProperty;
import cn.com.qmth.am.entity.QuestionEntity;
import cn.com.qmth.am.entity.StudentScoreEntity;
import cn.com.qmth.am.enums.DataStatus;
import cn.com.qmth.am.enums.ImportFileName;
import cn.com.qmth.am.enums.LockType;
import cn.com.qmth.am.service.QuestionService;
import cn.com.qmth.am.service.StudentScoreService;
import cn.com.qmth.am.service.StudentService;
import cn.com.qmth.am.utils.Calculator;
import io.swagger.annotations.ApiOperation;

@RestController
@RequestMapping(ApiConstant.DEFAULT_URI_PREFIX + "/admin")
@Aac(strict = false, auth = false)
public class AdminController {
	@Autowired
	private QuestionService questionService;
	@Autowired
	private StudentService studentService;
	@Autowired
	private StudentScoreService studentScoreService;
	@Autowired
	private SysProperty sysProperty;
	@Autowired
	private ConcurrentService concurrentService;

	@ApiOperation(value = "分析数据")
	@RequestMapping(value = "fenxi", method = RequestMethod.GET)
	public void fenxi(HttpServletResponse response, @RequestParam Long examId,
			@RequestParam(required = false) Boolean exZero,@RequestParam(required = false) Integer count) {
		StringBuilder sb = new StringBuilder();
		List<QuestionEntity> qs = questionService.findByExamId(examId);
		if (CollectionUtils.isEmpty(qs)) {
			sb.append("试题数：0");
			returnJson(sb.toString(), response);
			return;
		}
		sb.append("试题数：" + qs.size() + "\r\n");
		for (QuestionEntity q : qs) {
			List<StudentScoreEntity> scores = studentScoreService.findBy(examId, q.getSubjectCode(), q.getMainNumber(),
					q.getSubNumber(), exZero,count);
			if (CollectionUtils.isEmpty(scores)) {
				sb.append(q.getSubjectCode() + "|" + q.getMainNumber() + "|" + q.getSubNumber() + "| 相关系数：- \r\n");
			} else {
				double[] a = new double[scores.size()];
				double[] b = new double[scores.size()];
				int i = 0;
				for (StudentScoreEntity s : scores) {
					a[i] = s.getAiScore();
					b[i] = s.getMarkingScore();
					i++;
				}
				try {
					double ret = new BigDecimal(Calculator.correlation(a, b)).setScale(2, BigDecimal.ROUND_HALF_UP)
							.doubleValue();
					double avg1 = new BigDecimal(Calculator.mean(a)).setScale(2, BigDecimal.ROUND_HALF_UP)
							.doubleValue();
					double avg2 = new BigDecimal(Calculator.mean(b)).setScale(2, BigDecimal.ROUND_HALF_UP)
							.doubleValue();
					sb.append(q.getSubjectCode() + "|" + q.getMainNumber() + "|" + q.getSubNumber() + "| 相关系数：" + ret
							+ "| 人评均分：" + avg2 + "| 机评均分：" + avg1 +"| 题数："+scores.size()+ " \r\n");
					fill(scores, sb);
				} catch (Exception e) {
					sb.append(q.getSubjectCode() + "|" + q.getMainNumber() + "|" + q.getSubNumber() + "| 相关系数出错：- \r\n");
				}
			}
		}
		returnJson(sb.toString(), response);
	}
	
	private void fill(List<StudentScoreEntity> scores,StringBuilder sb) {
		int total=scores.size();
		int st=0;
		Map<DataKey,Integer> ret=new HashMap<>();
		for(StudentScoreEntity s:scores) {
			DataKey k=getKey(s.getAiScore()-s.getMarkingScore());
			Integer tem=ret.get(k);
			if(tem==null) {
				tem=0;
			}
			ret.put(k, tem+1);
		}
		List<DataKey> ks=new ArrayList<>(ret.keySet());
		ks.sort(new Comparator<DataKey>() {
			@Override
			public int compare(DataKey o1, DataKey o2) {
				int c1 = o1.getIndex();
				int c2 = o2.getIndex();
				if (c1 < c2) {
					return -1;
				} else if (c1 > c2) {
					return 1;
				} else {
					return 0;
				}
			}
		});
		for(DataKey k:ks) {
			Integer c=ret.get(k);
			if(k.getIndex()<=2) {
				st=st+c;
			}
			sb.append("      "+k.getKey()+"  "+c+"  "+Calculator.percentage(c, total, 2)+ " \r\n");
		}
		sb.append("      3分差值："+st+"  "+Calculator.percentage(st, total, 2)+ " \r\n");
	}
	
	private static DataKey getKey(double s) {
		if(s<0) {
			s=0-s;
		}
		if(s==0) {
			DataKey r=new DataKey();
			r.setKey("[0,0]");
			r.setIndex(-1);
			return r;
		}
		int i=0;
		for(;;) {
			if(i<s&&s<=i+1) {
				DataKey r=new DataKey();
				r.setKey("("+i+","+(i+1)+"]");
				r.setIndex(i);
				return r;
			}
			i++;
		}
	}
	

	@ApiOperation(value = "进度详情")
	@RequestMapping(value = "info", method = RequestMethod.GET)
	public void info(HttpServletResponse response, @RequestParam Long examId) {
		StringBuilder sb = new StringBuilder();
		List<QuestionEntity> qs = questionService.findByExamId(examId);
		int qstotal = 0;
		int qsCourse = 0;
		if (CollectionUtils.isNotEmpty(qs)) {
			Set<String> cset = new HashSet<>();
			qstotal = qs.size();
			for (QuestionEntity q : qs) {
				cset.add(q.getSubjectCode());
			}
			qsCourse = cset.size();
		}
		sb.append("ocr任务是否开启：" + (sysProperty.getOcrTaskEnable() ? "是" : "否") + "\r\n");
		sb.append("评分任务是否开启：" + (sysProperty.getMarkingTaskEnable() ? "是" : "否") + "\r\n");
		sb.append("试卷科目总数：" + qsCourse + "\r\n");
		sb.append("试卷小题总数：" + qstotal + "\r\n");
		int total = studentService.countBy(examId, null);
		if (total == 0) {
			sb.append("考生总数：0");
			returnJson(sb.toString(), response);
			return;
		}
		sb.append("考生总数：" + total + "\r\n");
		int suc = studentService.countBy(examId, DataStatus.SUCCESS);
		sb.append("考生处理成功总数：" + suc + "\r\n");
		int failed = studentService.countBy(examId, DataStatus.FAILED);
		sb.append("考生处理失败总数：" + failed + "\r\n");
		int qtotal = studentScoreService.countBy(examId, null);
		if (qtotal == 0) {
			sb.append("试题总数：0");
			returnJson(sb.toString(), response);
			return;
		}
		sb.append("考生试题总数：" + qtotal + "\r\n");

		int qocrsuc = studentScoreService.countOcrBy(examId, DataStatus.SUCCESS);
		sb.append("考生试题OCR成功总数：" + qocrsuc + "\r\n");
		int qocrfailed = studentScoreService.countOcrBy(examId, DataStatus.FAILED);
		sb.append("考生试题OCR失败总数：" + qocrfailed + "\r\n");

		int qsuc = studentScoreService.countBy(examId, DataStatus.SUCCESS);
		sb.append("考生试题评分成功总数：" + qsuc + "\r\n");
		int qfailed = studentScoreService.countBy(examId, DataStatus.FAILED);
		sb.append("考生试题评分失败总数：" + qfailed + "\r\n");
		returnJson(sb.toString(), response);
	}

	@ApiOperation(value = "上传导入文件")
	@RequestMapping(value = "upload", method = RequestMethod.POST)
	public String upload(@RequestParam MultipartFile file) {
		if (ImportFileName.getByName(file.getOriginalFilename()) == null) {
			return "上传失败，文件名错误";
		}
		File old = new File(sysProperty.getDataDir() + "/" + file.getOriginalFilename());
		if (old.exists()) {
			return "上传失败，有正在处理的文件";
		}
		InputStream in = null;
		try {
			in = file.getInputStream();
			FileUtils.copyInputStreamToFile(file.getInputStream(), old);
		} catch (IOException e) {
			return "上传失败，" + e.getMessage();
		} finally {
			if (in != null) {
				try {
					in.close();
				} catch (IOException e) {
				}
			}
		}
		return "上传成功";
	}

	@ApiOperation(value = "重置数据")
	@RequestMapping(value = "reset", method = RequestMethod.GET)
	public String reset(@RequestParam Long examId, @RequestParam(required = false) String subjectCode) {
		boolean lock1 = concurrentService.getReadWriteLock(LockType.AI_MARKING.name()).writeLock().tryLock();
		if (!lock1) {
			return "重置失败，有任务正在处理，请稍后 再试";
		}
		boolean lock2 = concurrentService.getReadWriteLock(LockType.OCR.name()).writeLock().tryLock();
		if (!lock2) {
			return "重置失败，有任务正在处理，请稍后 再试";
		}
		try {
			studentService.reset(examId, subjectCode);
			return "重置成功";
		} finally {
			if (lock2) {
				concurrentService.getReadWriteLock(LockType.OCR.name()).writeLock().unlock();
			}
			if (lock1) {
				concurrentService.getReadWriteLock(LockType.AI_MARKING.name()).writeLock().unlock();
			}
		}
	}

	@ApiOperation(value = "删除数据")
	@RequestMapping(value = "clear", method = RequestMethod.GET)
	public String clear(@RequestParam Long examId, @RequestParam(required = false) String subjectCode) {
		boolean lock1 = concurrentService.getReadWriteLock(LockType.AI_MARKING.name()).writeLock().tryLock();
		if (!lock1) {
			return "删除失败，有任务正在处理，请稍后 再试";
		}
		boolean lock2 = concurrentService.getReadWriteLock(LockType.OCR.name()).writeLock().tryLock();
		if (!lock2) {
			return "删除失败，有任务正在处理，请稍后 再试";
		}
		try {
			studentService.clear(examId, subjectCode);
			return "删除成功";
		} finally {
			if (lock2) {
				concurrentService.getReadWriteLock(LockType.OCR.name()).writeLock().unlock();
			}
			if (lock1) {
				concurrentService.getReadWriteLock(LockType.AI_MARKING.name()).writeLock().unlock();
			}
		}
	}

	@ApiOperation(value = "机评开关")
	@RequestMapping(value = "marking/status", method = RequestMethod.GET)
	public String markingStatus(@RequestParam Boolean enable) {
		sysProperty.setMarkingTaskEnable(enable);
		return "设置成功：" + enable;
	}

	@ApiOperation(value = "ocr开关")
	@RequestMapping(value = "ocr/status", method = RequestMethod.GET)
	public String ocrStatus(@RequestParam Boolean enable) {
		sysProperty.setOcrTaskEnable(enable);
		return "设置成功：" + enable;
	}

	private void returnJson(String body, HttpServletResponse response) {
		response.setContentType("application/json;charset=utf-8");
		PrintWriter writer = null;
		try {
			writer = response.getWriter();
			writer.write(body);
		} catch (IOException e) {
		} finally {
			IOUtils.close(writer);
		}
	}
}