package com.qxueyou.scc.admin.progress.service.impl.lecture;

import java.math.BigDecimal;

import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;

import com.qxueyou.scc.admin.progress.dao.ProgressDAO;
import com.qxueyou.scc.admin.progress.model.Progress;
import com.qxueyou.scc.admin.progress.model.SubjectLectureProgressDetail;
import com.qxueyou.scc.admin.progress.model.view.SubjectProgressTreeV;
import com.qxueyou.scc.admin.progress.service.IDetailProgressService;
import com.qxueyou.scc.admin.progress.service.impl.ProgressService;
import com.qxueyou.scc.admin.progress.service.impl.StudyProgressUtils;
import com.qxueyou.scc.base.model.Result;
import com.qxueyou.scc.base.service.ICacheService;
import com.qxueyou.scc.base.service.impl.CommonAppService;
import com.qxueyou.scc.base.util.ClientUtils;
import com.qxueyou.scc.base.util.CollectionUtils;
import com.qxueyou.scc.base.util.TraceUtils;

@Service
public class LectureCommonProgressService extends CommonAppService implements IDetailProgressService {

	@Autowired
	ICacheService cacheService;

	@Autowired
	ProgressDAO dao;

	@Override
	public Result addProgress(String targetId, String learnerId, Double start, Double end) {

		if (start > end || start < 0 || end < 0) {
			return new Result(false, "invalid arguments");
		}

		Double[][] progress = dao.mergeProgress(targetId, learnerId, start, end , dao.getProgress(targetId, learnerId));

		if (!checkLecture(targetId).isSuccess()) {
			return checkLecture(targetId);
		}

		Double sum = StudyProgressUtils.sum(progress);

		Progress p = dao.getProgress(Progress.PROGRESS_TYPE_LECTURE, targetId, learnerId);

		if (p == null) {
			p = newProgress(targetId, learnerId, sum);
		} else {
			updateProgress(targetId, p, sum);
		}

		//±£´æѧϰ¼Ç¼Ã÷ϸ
		this.saveProgressDetail(start, end, targetId, p.getProgressId(), learnerId);

		SubjectProgressTreeV subjectProgressTreeV = dao.getSubjectProgressTreeV(targetId, learnerId);

		if(subjectProgressTreeV != null) {
			cacheService.lstRightPush(ProgressService.SUBJECT_PROGRESS_STATISTIC,
					subjectProgressTreeV.getParentId() + "," + learnerId);
		}

		return new Result(true, "success", CollectionUtils.newObjectMap("percent", getProgressPercent(targetId, sum)));
	}

	protected Result checkLecture(String targetId) {
		return new Result(true);
	}

	/**
	 * ±£´æѧϰ¼Ç¼Ã÷ϸ
	 *
	 * @param start
	 * @param end
	 * @param targetId
	 * @param progressId
	 * @param learnerId
	 */
	private void saveProgressDetail(Double start, Double end, String targetId, String progressId, String learnerId) {
		SubjectLectureProgressDetail detail = new SubjectLectureProgressDetail();
		detail.setDeleteFlag(false);
		detail.setEnd(end);
		detail.setStart(start);
		detail.setTargetId(targetId);
		detail.setProgressId(progressId);
		detail.setLearnerId(learnerId);

		TraceUtils.setCreateTrace(detail);

		this.save(detail);
	}

	/**
	 * »ñÈ¡½ø¶È°Ù·Ö±È
	 *
	 * @param targetId
	 * @param sum
	 * @return
	 */
	protected double getProgressPercent(String targetId, Double sum) {
		return 1.00d;
	}

	@Override
	public String getType() {
		return Progress.PROGRESS_TYPE_LECTURE;
	}

	protected void updateProgress(String targetId, Progress p, Double sum) {

		TraceUtils.setUpdateTrace(p);
		p.setProgressValue(BigDecimal.valueOf(Double.valueOf(sum)));
		p.setProgressPercent(1d);

		save(p);

	}

	protected Progress newProgress(String targetId, String learnerId, Double sum) {

		Progress p = new Progress();
		TraceUtils.setCreateTrace(p);

		p.setLearnerId(learnerId);
		p.setLearnerName(ClientUtils.getUserName());
		p.setProgressUnit("s");
		p.setProgressValue(BigDecimal.valueOf(Double.valueOf(sum)));
		p.setTargetId(targetId);
		p.setType(Progress.PROGRESS_TYPE_LECTURE);
		p.setProgressPercent(1d);
		save(p);

		return p;
	}

}