import { padZero } from './tools'

export class TimeInfo {
  options: any
  noon: string[]
  hours: any[]
  minutes: any[]
  seconds: any[]
  timeList: any[]
  constructor(options = { hourType: 24, hourDuration: '0-23', minuteDuration: '0-59',  secondDuration: '0-59', interval: 1 }) {
    this.setOptions(options)
    this.getHour()
    this.getMinute()
    this.getSecond()
    this.getTimeList(options.interval)
  }

  // set options
  setOptions(options) {
    this.options = options
  }

  // get hour function
  getHour() {
    const hourType = this.options.hourType
    const hourDuration = this.options.hourDuration ? this.options.hourDuration : hourType === 24 ? '0-23' : '0-11'
    const duration = hourDuration.split('-')
    const start = parseInt(duration[0])
    const end = parseInt(duration[1])
    const hours = []
    for (let i = start; i <= end; i += 1) {
      hours.push(padZero(i))
    }
    if (hourType === 12) {
      this.noon = ['AM', 'PM']
    }
    this.hours = hours
  }

  // get minute funcgtion
  getMinute() {
    const minuteDuration = this.options.minuteDuration
    const duration = minuteDuration.split('-')
    const start = parseInt(duration[0])
    const end = parseInt(duration[1])
    const minutes = []
    if (end >= 60) {
      for (let i = start; i < 60; i += 1) {
        minutes.push(padZero(i))
      }
    } else {
      for (let i = start; i <= end; i += 1) {
        minutes.push(padZero(i))
      }
    }

    this.minutes = minutes
  }

  // get second function
  getSecond() {
    const secondDuration = this.options.secondDuration
    const duration = secondDuration.split('-')
    const start = parseInt(duration[0])
    const end = parseInt(duration[1])
    const seconds = []
    if (end >= 60) {
      for (let i = start; i < 60; i += 1) {
        seconds.push(padZero(i))
      }
    } else {
      for (let i = start; i <= end; i += 1) {
        seconds.push(padZero(i))
      }
    }
    this.seconds = seconds
  }

  getTimeList(interval) {
    let size = Math.floor(24 * 60 / interval)
    const time = new Array(size).fill('').map((item, index) => {
      let startVal = index * interval
      let startHour = Math.floor((startVal / 60))
      let startMinute = (startVal % 60)
      let startTime = ((startHour < 10) ? ('0' + startHour) : startHour) + ':' + (startMinute < 10 ? '0' + startMinute : startMinute)
      return startTime
    })
    this.timeList = time
  }

  // get nowinfo function
  getNowInfo() {
    const nowInfo = new Date()
    const dateInfo = padZero(nowInfo.getFullYear()) + '-' + padZero(nowInfo.getMonth() + 1) + '-' + padZero(nowInfo.getDate())
    const timeInfo = padZero(nowInfo.getHours()) + ':' + padZero(nowInfo.getMinutes()) + ':' + padZero(nowInfo.getSeconds())
    return {
      dateInfo,
      timeInfo
    }
  }
}