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

import java.math.BigDecimal;
import java.util.Date;

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

import com.qxueyou.scc.admin.progress.model.Progress;
import com.qxueyou.scc.base.util.ClientUtils;
import com.qxueyou.scc.base.util.TraceUtils;
import com.qxueyou.scc.teach.subject.model.SubjectLecture;
import com.qxueyou.scc.teach.subject.model.view.LectureVideoV;
import com.qxueyou.scc.teach.subject.service.ILectureService;

@Service("LectureVideoProgressService")
public class LectureVideoProgressService extends LectureCommonProgressService {

	@Autowired
	ILectureService lectureService;

	@Override
	public String getType() {
		return SubjectLecture.TYPE_VIDEO;
	}

	/**
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	 *
	 * @param targetId
	 * @param sum
	 * @return
	 */
	protected double getProgressPercent(String targetId, int sum) {

		LectureVideoV lectureVideo = lectureService.readVideoLecture(targetId);

		return Math.min((double) sum / (double) lectureVideo.getSeconds(), 1.0d);
	}

	@Override
	public Progress newProgress(String targetId, String learnerId, int sum) {

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

		p.setLearnerId(learnerId);
		p.setLearnerName(ClientUtils.getUserName());
		p.setProgressUnit("s");
		p.setProgressValue(BigDecimal.valueOf(Long.valueOf(sum)));
		p.setTargetId(targetId);
		p.setType(Progress.PROGRESS_TYPE_LECTURE);
		p.setProgressPercent(getProgressPercent(targetId, sum));
		p.setDeleteFlag(false);
		p.setCreator(ClientUtils.getUserName());
		p.setCreateId(ClientUtils.getUserId());
		p.setCreateTime(new Date());
		p.setUpdator(ClientUtils.getUserName());
		p.setUpdateId(ClientUtils.getUserId());
		p.setUpdateTime(new Date());

		save(p);

		return p;
	}

	@Override
	public void updateProgress(String targetId, Progress p, int sum) {

		TraceUtils.setUpdateTrace(p);
		p.setProgressValue(BigDecimal.valueOf(Double.valueOf(sum)));
		if(p.getProgressPercent() == null || getProgressPercent(targetId, sum)>p.getProgressPercent()) {
			p.setProgressPercent(getProgressPercent(targetId, sum));
		}

		save(p);

	}

}