/**用于控制学习情况*/
const studyDurationKey='xus_duration';
const studyVideoSpeedKey='xus_video_speed';
const studyVideoKeyPre='xus_video';

/**保存播放速度*/
const setVideoSpeed=function(speed){
	uni.setStorageSync(studyVideoSpeedKey,speed);
}

const getVideoSpeed=function(){
	let speed=uni.getStorageSync(studyVideoSpeedKey);
	if(speed){
		return Number(speed);
	}else{
		return 1.0;
	}
}

/**
 * 设置视频的播放时间
 * @param {} courseId
 * @param {*} time
 */
const setVideoTime=function(courseId,time){
	uni.setStorageSync(studyVideoKeyPre+'_'+courseId,time);
}

/**
 * 获取本地存储的学习时长
 */
const setStudyDuration=function(duration){
  console.log(duration,'设置时长');
  uni.setStorageSync(studyDurationKey,duration);
}

/**
 * 清除本地记录的学习时长
 */
const clearStudyDuration=function(){
  uni.setStorageSync(studyDurationKey,0);
}

const getStudyDuration=function(){
  let speedValue=uni.getStorageSync(studyDurationKey);
  if(speedValue){
    //console.log(speedValue,'speedValue');
    return Number(speedValue);
  }else{
    return 0;
  }
}
/**
 * 追加学习时长
 * @param Number duration  学习时长(秒)
 */
const appendStudyDuration=function(duration){
  let speedValue=uni.getStorageSync(studyDurationKey);
  if(speedValue){
    localStorage.setStorageSync(studyDurationKey,Number(speedValue)+duration);
  }else{
    localStorage.setStorageSync(studyDurationKey,duration);
  }
}

export default {
  setVideoSpeed,
  getVideoSpeed,
  getStudyDuration,
  setStudyDuration,
  clearStudyDuration,
  appendStudyDuration
}