CALEXT2_View.js

class View {
  constructor(config, events) {
    this.config = config
    this.locale = config.locale
    this.slotUnit = null
    this.slotPeriods = []
    this.slots = []
    this.contentDom = null
    this.moduleDom = null
    this.containerDom = null
    this.calendars = config.calendars
    this.createDom()
    this.calendars = this.assignEvents([].concat(events))
  }

  static makeByName(config, events) {
    switch(config.mode) {
      case "current":
        return new ViewCurrent(config, events)
      case "upcoming":
        return new ViewUpcoming(config, events)
      case "month":
        return new ViewMonth(config, events)
      case "daily":
        return new ViewDaily(config, events)
      case "weekly":
        return new ViewWeekly(config, events)
      case "monthly":
        return new ViewMonthly(config, events)
      case "week":
        return new ViewWeek(config, events)
      default:
        return new ViewWeek(config, events)
    }
  }

  assignEvents(events) {
    this.events = this.filterEvents(this.transformEvents(events)).slice(0, this.config.maxItems)
  }

  transformEvents(events) {
    if (typeof this.config.transform == "function") {
      return events.map((e)=>{
        var event = Object.assign({}, e)
        return this.config.transform(event)
      })
    }

    return [].concat(events)
  }

  draw() {
    this.drawDom()
    this.makeSlots(this.events)
    this.drawEvents()
  }

  destroy() {
    this.hide()
    setTimeout(()=>{
      if (this.slots) {
        for(let i=0; i <this.slots.length;i++) {
          this.slots[i].destroy()
        }
        this.moduleDom.remove()
        this.containerDom = null
        for (var property in this) {
          if (this.hasOwnProperty(property)) {
            this[property] = null
          }
        }
      }
    }, 500)
  }

  filterEvents(events) {
    var calendars = this.calendars
    var calendarFilter
      = (Array.isArray(calendars) && calendars.length > 0)
      ? (e) => {return (calendars.indexOf(e.calendarName) >= 0) ? true : false}
      : (e) => {return true}
    var filtered = events.filter(calendarFilter)
    if (this.config.filterPassedEvent) {
      var now = moment().format("X")
      filtered = filtered.filter((e)=>{
        return (e.endDate > now) ? true : false
      })
    }
    if (typeof this.config.filter == "function") {
      filtered = filtered.filter(this.config.filter)
    }
    if (typeof this.config.sort == "function") {
      filtered = filtered.sort(this.config.sort)
    }
    filtered = filtered.map((e)=>{
      var seq = calendars.indexOf(e.calendarName)
      e.calendarSeq = (seq >= 0) ? seq : e.calendarId
      return e
    })
    return filtered
  }
  getRegionDom(position) {
    var className = position.replace("_", " ")
    className = "region " + className
    var nodes = document.getElementsByClassName(className)
    if (nodes.length !== 1) {
      console.error("[CALEXT2] Invalid position : ", position)
      return null
    }
    return nodes[0].querySelector(".container")
  }

  drawDom() {
    var container = this.getRegionDom(this.config.position)
    var children = container.children
    var order = this.config.positionOrder
    if (order == -1) {
      container.appendChild(this.moduleDom)
    } else if (order >= 0 && order < children.length) {
      container.insertBefore(this.moduleDom, children[order])
    } else {
      container.appendChild(this.moduleDom)
    }



    if (container.style.display == "none") {
      container.style.display = "block"
    }
    this.containerDom = container
    this.show()
  }

  createDom() {
    var module = document.createElement("div")
    module.classList.add("module", "fake_module", "MMM-CalendarExt2", "CX2")
    if (this.config.sceneClassName) module.classList.add(this.config.sceneClassName)
    if (this.config.title) {
      var header = document.createElement("header")
      header.classList.add("module-header")
      module.appendChild(header)
    }
    var content = document.createElement("div")
    content.classList.add("module-content")
    var viewDom = document.createElement("div")
    viewDom.classList.add("view")
    if (this.config.className) viewDom.classList.add(this.config.className)
    viewDom.classList.add(this.config.mode)
    this.viewDomType(viewDom)
    content.appendChild(viewDom)
    module.appendChild(content)
    module.classList.add("hidden")
    this.contentDom = viewDom
    this.moduleDom = module


  }

  hide() {
    if (this.moduleDom) {
      if (this.moduleDom.classList.contains("shown")) {
        this.moduleDom.classList.remove("shown")
        this.moduleDom.classList.add("hidden")
        setTimeout(()=>{
          if(this.moduleDom) this.moduleDom.style.display = "none"
        }, 1000)
      }
    }
  }

  show() {
    if (this.moduleDom) {
      if (this.moduleDom.classList.contains("hidden")) {
        this.moduleDom.classList.remove("hidden")
        this.moduleDom.classList.add("shown")
      }
    }
  }

  makeSlots() {
    this.contentDom.innerHTML = ""
    this.slotPeriods = this.getSlotPeriods()
    this.slots = Slot.factory(this, this.slotPeriods, this.events)
    for(let i = 0; i < this.slots.length; i++) {
      var slot = this.slots[i]
      this.adjustSlotWidth(slot.dom, this.slots.length)
      this.appendSlot(slot)
    }
    this.makeModuleTitle()
  }

  makeModuleTitle() {
    if (!this.config.title) return
    var headerTitle = this.moduleDom.getElementsByClassName("module-header")
    var slotStart = Object.assign({}, this.slots[0].start)
    var title
    if (typeof this.config.title == "function") {
      title = this.config.title(moment(slotStart))
    } else {
      title = this.config.title
    }

    headerTitle[0].innerHTML = title
  }

  appendSlot(slot) {
    this.contentDom.appendChild(slot.dom)
  }

  drawSlots(targetDom) { /* to deprecate */
    targetDom.innerHTML = ""
    var slotPeriods = this.getSlotPeriods()
    var slots = Slot.factory(slotPeriods)
    for (let i = 0; i < slots.length; i++) {
      var slot = slots[i]
      slot.draw(this, i)
    }
  }

  makeSlotHeader(slot) {
    var header = slot.headerDom
    var title = header.querySelector(".slotTitle")
    var subTitle = header.querySelector(".slotSubTitle")
    if (this.config.slotTitle) {
      title.innerHTML = this.config.slotTitle
    } else if (this.config.slotTitleFormat && typeof this.config.slotTitleFormat !== "object") {
      title.innerHTML = moment(slot.start).locale(this.locale).format(this.config.slotTitleFormat)
    } else {
      title.innerHTML = moment(slot.start).locale(this.locale).calendar(null, this.config.slotTitleFormat)
    }
    if (this.config.slotSubTitle) {
      subTitle.innerHTML = this.config.slotSubTitle
    } else if (this.config.slotSubTitleFormat && typeof this.config.slotSubTitleFormat !== "object") {
      subTitle.innerHTML = moment(slot.start).locale(this.locale).format(this.config.slotSubTitleFormat)
    } else {
      subTitle.innerHTML = moment(slot.start).locale(this.locale).calendar(null, this.config.slotSubTitleFormat)
    }
  }

  makeSlotDomClass(slot) {
    var slotDom = slot.dom
    slotDom.classList.add(this.config.mode)
    if (slot.seq >= 0) slotDom.classList.add("seq_" + slot.seq)
  }

  getSlotPeriods() {
    var getSlotPeriod = (tDay, seq) => {
      var mtd = moment(tDay).locale(this.locale).add(seq, this.slotUnit)
      var start = moment(mtd).startOf(this.slotUnit)
      var end = moment(mtd).endOf(this.slotUnit)
      return {
        start:start,
        end:end
      }
    }
    var periods = []
    var now = moment().locale(this.locale)
    var targetDay = this.getStartDay()
    var count = this.getSlotCount()
    for (let i = 0; i < count; i++) {
      var period = getSlotPeriod(targetDay, i)
      periods.push(period)
    }
    return periods
  }

  viewDomType(viewDom) {
    //do nothing;
  }
  adjustSlotWidth(slotDom, count) {
    //do nothing;
  }

  adjustSlotHeight(dom) {
    dom.style.maxHeight = this.config.slotMaxHeight
  }


  getSlotCount() {
    return this.config.slotCount
  }

  getStartDay() {
    var fromNow = this.config.fromNow
    var now = moment().locale(this.locale)
    return now.add(fromNow, this.slotUnit).startOf("day")
  }

  drawEvents() {
    for(let i = 0; i < this.slots.length; i++) {
      var slot = this.slots[i]
      slot.drawEvents()
    }
  }
}

class ViewPeriod extends View {
  constructor(config, events) {
    super(config, events)
  }
  makeSlotDomClass(slot) {
    var slotDom = slot.dom
    super.makeSlotDomClass(slot)
    slotDom.classList.add("period")
  }
  viewDomType(viewDom) {
    viewDom.classList.add(this.config.type)
  }
  adjustSlotWidth(slotDom, count) {
    if (this.config.type == "row") slotDom.style.width = ((100 / count) - 3) + "%"
  }
}

class ViewAgenda extends View {
  constructor(config, events) {
    super(config, events)
    this.slotUnit = "day"
  }
  makeSlotDomClass(slot) {
    var slotDom = slot.dom
    super.makeSlotDomClass(slot)
    slotDom.classList.add("agenda", "period")
  }
  getSlotCount() {
    return 1
  }
  getStartDay() {
    var now = moment().locale(this.locale)
    return now
  }
  getSlotPeriods() {
    return [{
      start:moment().locale(this.locale),
      end:null,
    }]
  }
  makeSlotHeader(slot) {
    var header = slot.headerDom
    var title = header.querySelector(".slotTitle")
    title.innerHTML = this.config.slotTitle
  }
}

class ViewCell extends View {
  constructor(config, events) {
    super(config, events)
    this.slotUnit = "week"
  }

  makeSlots() {
    this.contentDom.innerHTML = ""
    this.slotPeriods = this.getSlotPeriods()
    this.slots = WeekSlot.factory(this, this.slotPeriods, this.events)
    for(let i = 0; i < this.slots.length; i++) {
      var slot = this.slots[i]
      this.appendSlot(slot)
    }
    this.makeModuleTitle()
  }

  getSlotPeriods() {
    var showWeekends = this.config.showWeekends
    var getSlotPeriod = (tDay, seq) => {
      var mtd = moment(tDay).locale(this.locale).add(seq, "week")
      var start = (showWeekends)
        ? moment(mtd).startOf("week")
        : moment(mtd).startOf("week").day(1).startOf("day")
      var end = (showWeekends)
        ? moment(mtd).endOf("week")
        : moment(mtd).startOf("week").day(5).endOf("day")
      return {
        start:start,
        end:end
      }
    }
    var periods = []
    var now = moment().locale(this.locale)
    var targetDay = this.getStartDay()
    var count = this.getSlotCount()
    for (let i = 0; i < count; i++) {
      var period = getSlotPeriod(targetDay, i)
      periods.push(period)
    }
    return periods
  }

  getSubSlotPeriods(start) {
    var showWeekends = this.config.showWeekends
    var days = (showWeekends) ? 7 : 5
    var periods = []
    var t = start
    var startDay = (showWeekends)
      ? moment(t).locale(this.locale).startOf("week")
      : moment(t).locale(this.locale).startOf("week").day(1).startOf("day")
    for (let i = 0; i < days; i++) {
      var p = {
        start : moment(startDay).startOf("day"),
        end : moment(startDay).endOf("day")
      }
      periods.push(p)
      startDay.add(1, "day")
    }
    return periods
  }

  makeSlotDomClass(slot) {
    var slotDom = slot.dom
    super.makeSlotDomClass(slot)
    slotDom.classList.add("weekSlot")
  }

  viewDomType(viewDom) {
    viewDom.classList.add("column")
  }

  adjustSlotHeight(slotDom) {
    slotDom.style.maxHeight = this.config.slotMaxHeight
    slotDom.style.height = this.config.slotMaxHeight
  }

  makeCellDomClass(slot, daySeq, weekSeq) {
    var slotDom = slot.dom
    if (daySeq >= 0) slotDom.classList.add("cellSeq_" + daySeq)
    if (weekSeq === 0 && daySeq === 0) {
      slotDom.classList.add("firstCell")
    }
    var day = moment(slot.start).locale(this.locale)
    var now = moment().locale(this.locale)
    if (now.format("YYYY") == day.format("YYYY")) slotDom.classList.add("thisyear")
    if (now.format("M") == day.format("M")) slotDom.classList.add("thismonth")
    if (now.format("w") == day.format("w"))slotDom.classList.add("thisweek")
    if (now.format("YYYYMMDD") == day.format("YYYYMMDD")) slotDom.classList.add("today")
    slotDom.classList.add("weekday_" + day.format("E"))
    slotDom.classList.add("year_" + day.format("YYYY"))
    slotDom.classList.add("month_" + day.format("M"))
    slotDom.classList.add("day_" + day.format("D"))
    slotDom.classList.add("week_" + day.format("w"))
    slotDom.classList.add("dayofyear_" + day.format("DDD"))
  }

  makeWeeksMark (start) {
    var weeks = document.createElement("div")
    weeks.classList.add("weeksmark")
    weeks.innerHTML = moment(start).locale(this.locale).format(this.config.weeksFormat)
    return weeks
  }

  adjustSlotWidth(slotDom, count) {
    //if (this.config.type == "row") slotDom.style.width = ((100 / count) - 0.25) + "%"
  }

  makeSlotHeader(slot) {
    super.makeSlotHeader(slot)
    var header = slot.headerDom
    var start = slot.start
    var altTitle = header.querySelector(".slotAltTitle")
    if (this.config.slotAltTitle) {
      altTitle.innerHTML = this.config.slotTitle
    } else if (this.config.slotAltTitleFormat) {
      altTitle.innerHTML = moment(slot.start).locale(this.locale).format(this.config.slotAltTitleFormat)
    }
  }
}

class ViewDaily extends ViewPeriod {
  constructor(config, events) {
    super(config, events)
    this.slotUnit = "day"
  }
  makeSlotDomClass(slot) {
    var slotDom = slot.dom
    super.makeSlotDomClass(slot)
    slotDom.classList.add("daily")

    var day = moment(slot.start).locale(this.locale)
    var now = moment().locale(this.locale)
    if (now.format("YYYY") == day.format("YYYY")) slotDom.classList.add("thisyear")
    if (now.format("M") == day.format("M")) slotDom.classList.add("thismonth")
    if (now.format("w") == day.format("w"))slotDom.classList.add("thisweek")
    if (now.format("YYYYMMDD") == day.format("YYYYMMDD")) slotDom.classList.add("today")
    slotDom.classList.add("weekday_" + day.format("E"))
    slotDom.classList.add("year_" + day.format("YYYY"))
    slotDom.classList.add("month_" + day.format("M"))
    slotDom.classList.add("day_" + day.format("D"))
    slotDom.classList.add("week_" + day.format("w"))
    slotDom.classList.add("dayofyear_" + day.format("DDD"))
  }
}

class ViewWeekly extends ViewPeriod {
  constructor(config, events) {
    super(config, events)
    this.slotUnit = "week"
  }

  makeSlotDomClass(slot) {
    var slotDom = slot.dom
    super.makeSlotDomClass(slot)
    slotDom.classList.add("weekly")

    var day = moment(slot.start).locale(this.locale)
    var dayEnd = moment(slot.end).locale(this.locale)
    var now = moment().locale(this.locale)
    if (now.format("YYYY") == day.format("YYYY")) slotDom.classList.add("thisyear")
    if (now.format("M") == day.format("M")) slotDom.classList.add("thismonth")
    if (now.format("w") == day.format("w"))slotDom.classList.add("thisweek")
    if (now.isBetween(day, dayEnd)) slotDom.classList.add("today")
    slotDom.classList.add("year_" + day.format("YYYY"))
    slotDom.classList.add("month_" + day.format("M"))
    slotDom.classList.add("week_" + day.format("w"))
  }

  makeSlotHeader(slot) {
    var header = slot.headerDom
    var title = header.querySelector(".slotTitle")
    var subTitle = header.querySelector(".slotSubTitle")
    if (this.config.slotTitle) {
      title.innerHTML = this.config.slotTitle
    } else if (this.config.slotTitleFormat && typeof this.config.slotTitleFormat !== "object") {
      title.innerHTML = moment(slot.start).locale(this.locale).format(this.config.slotTitleFormat)
    } else {
      title.innerHTML = moment(slot.start).locale(this.locale).calendar(null, this.config.slotTitleFormat)
    }
    if (this.config.slotSubTitle) {
      subTitle.innerHTML = this.config.slotSubTitle
    } else if (this.config.slotSubTitleFormat && typeof this.config.slotSubTitleFormat !== "object") {
      subTitle.innerHTML = moment(slot.start).locale(this.locale).format(this.config.slotSubTitleFormat)
    } else {
      subTitle.innerHTML = moment(slot.start).locale(this.locale).calendar(null, this.config.slotSubTitleFormat)
    }
  }
}

class ViewMonthly extends ViewPeriod {
  constructor(config, events) {
    super(config, events)
    this.slotUnit = "month"
  }

  makeSlotDomClass(slot, seq=null) {
    var slotDom = slot.dom
    super.makeSlotDomClass(slot)
    slotDom.classList.add("monthly")
    var day = moment(slot.start).locale(this.locale)
    var dayEnd = moment(slot.end).locale(this.locale)
    var now = moment().locale(this.locale)
    if (now.format("YYYY") == day.format("YYYY")) slotDom.classList.add("thisyear")
    if (now.format("M") == day.format("M")) slotDom.classList.add("thismonth")
    if (now.isBetween(day, dayEnd)) slotDom.classList.add("today")
    slotDom.classList.add("year_" + day.format("YYYY"))
    slotDom.classList.add("month_" + day.format("M"))
  }
}

class ViewCurrent extends ViewAgenda {
  constructor(config, events) {
    super(config, events)
  }

  makeSlotDomClass(slot) {
    var slotDom = slot.dom
    super.makeSlotDomClass(slot)
    slotDom.classList.add("current")
  }

  filterEvents(events) {
    var filtered = super.filterEvents(events)
    var now = moment()
    filtered = filtered.filter((e)=>{
      if (now.isBetween(moment.unix(e.startDate), moment.unix(e.endDate))) return true
    })
    return filtered
  }
}

class ViewUpcoming extends ViewAgenda {
  constructor(config, events) {
    super(config, events)
  }

  makeSlotDomClass(slot) {
    var slotDom = slot.dom
    super.makeSlotDomClass(slot)
    slotDom.classList.add("upcoming")
  }

  filterEvents(events) {
    var until = moment().add(this.config.maxDays, "day").endOf('day')
    var filtered = super.filterEvents(events)
    filtered = filtered.filter((e)=>{
      if (moment.unix(e.startDate).isBetween(moment(), until)) return true
    })
    return filtered
  }
}

class ViewWeek extends ViewCell {
  constructor(config, events) {
    super(config, events)
  }
}

class ViewMonth extends ViewCell {
  constructor(config, events) {
    super(config, events)
  }
  getSlotCount() {
    var startDay = this.getStartDay()
    var endDay = this.getEndWeek()
    var diff = endDay.diff(startDay, "week")
    return diff + 1
  }
  getStartDay() {
    var fromNow = this.config.fromNow
    var now = moment().locale(this.locale)
    return now.add(fromNow, "month").startOf("month").startOf("week")
  }
  getEndWeek() {
    var fromNow = this.config.fromNow
    var now = moment().locale(this.locale)
    return now.add(fromNow, "month").endOf("month").startOf("week")
  }
  makeSlots() {
    super.makeSlots()
    if (this.config.monthFormat) {
      var fromNow = this.config.fromNow
      var now = moment().locale(this.locale)
      now.add(fromNow, "month").startOf("month")
      var mt = document.createElement("div")
      mt.innerHTML = now.format(this.config.monthFormat)
      mt.classList.add("monthViewTitle")
      this.contentDom.prepend(mt)
    }
  }
}