sub init()

    ' Max "Overview" lines to show in Preview and Detail
    m.maxPreviewLines = 5
    m.maxDetailLines = 14

    m.detailsView = m.top.findNode("detailsView")
    m.noInfoView = m.top.findNode("noInformation")

    m.programName = m.top.findNode("programName")
    m.episodeTitle = m.top.findNode("episodeTitle")
    m.episodeNumber = m.top.findNode("episodeNumber")
    m.overview = m.top.findNode("overview")

    m.episodeDetailsGroup = m.top.findNode("episodeDetailsGroup")
    m.isLiveGroup = m.top.findNode("isLive")
    m.isRepeatGroup = m.top.findNode("isRepeat")

    m.broadcastDetails = m.top.findNode("broadcastDetails")
    m.duration = m.top.findNode("duration")
    m.channelName = m.top.findNode("channelName")
    m.image = m.top.findNode("image")
    m.favorite = m.top.findNode("favorite")

    m.viewChannelFocusAnimationOpacity = m.top.findNode("viewChannelFocusAnimationOpacity")
    m.recordFocusAnimationOpacity = m.top.findNode("recordFocusAnimationOpacity")
    m.recordSeriesFocusAnimationOpacity = m.top.findNode("recordSeriesFocusAnimationOpacity")
    m.focusAnimation = m.top.findNode("focusAnimation")

    m.viewChannelButton = m.top.findNode("viewChannelButton")
    m.recordButton = m.top.findNode("recordButton")
    m.recordSeriesButton = m.top.findNode("recordSeriesButton")

    m.viewChannelOutline = m.top.findNode("viewChannelOutline")
    m.recordOutline = m.top.findNode("recordOutline")
    m.recordSeriesOutline = m.top.findNode("recordSeriesOutline")

    m.viewChannelLabel = m.top.findNode("viewChannelButtonLabel")
    m.recordLabel = m.top.findNode("recordButtonLabel")
    m.recordSeriesLabel = m.top.findNode("recordSeriesButtonLabel")

    m.viewChannelButtonBackground = m.top.findNode("viewChannelButtonBackground")
    m.recordButtonBackground = m.top.findNode("recordButtonBackground")
    m.recordSeriesButtonBackground = m.top.findNode("recordSeriesButtonBackground")

    m.focusAnimation.observeField("state", "onAnimationComplete")

    setupLabels()
end sub


' Set up Live and Repeat label sizes
sub setupLabels()

    boundingRect = m.top.findNode("isLiveText").boundingRect()
    isLiveBackground = m.top.findNode("isLiveBackground")
    isLiveBackground.width = boundingRect.width + 16
    isLiveBackground.height = boundingRect.height + 8
    m.episodeDetailsGroup.removeChildIndex(0)

    boundingRect = m.top.findNode("isRepeatText").boundingRect()
    isRepeatBackground = m.top.findNode("isRepeatBackground")
    isRepeatBackground.width = boundingRect.width + 16
    isRepeatBackground.height = boundingRect.height + 8
    m.episodeDetailsGroup.removeChildIndex(0)

    m.viewChannelLabel.text = tr("View Channel")
    boundingRect = m.viewChannelButton.boundingRect()
    viewButtonBackground = m.top.findNode("viewChannelButtonBackground")
    viewButtonBackground.width = boundingRect.width + 20
    viewButtonBackground.height = boundingRect.height + 20
    m.viewChannelOutline.width = viewButtonBackground.width
    m.viewChannelOutline.height = viewButtonBackground.height

    m.recordLabel.text = tr("Record")
    boundingRect = m.recordButton.boundingRect()
    recordButtonBackground = m.top.findNode("recordButtonBackground")
    recordButtonBackground.width = boundingRect.width + 20
    recordButtonBackground.height = boundingRect.height + 20
    m.recordOutline.width = recordButtonBackground.width
    m.recordOutline.height = recordButtonBackground.height

    m.recordSeriesLabel.text = tr("Record Series")
    boundingRect = m.recordSeriesButton.boundingRect()
    recordSeriesButtonBackground = m.top.findNode("recordSeriesButtonBackground")
    recordSeriesButtonBackground.width = boundingRect.width + 20
    recordSeriesButtonBackground.height = boundingRect.height + 20
    m.recordSeriesOutline.width = recordSeriesButtonBackground.width
    m.recordSeriesOutline.height = recordSeriesButtonBackground.height

    m.userCanRecord = get_user_setting("livetv.canrecord")
    if m.userCanRecord = "false"
        m.recordButton.visible = false
        m.recordSeriesButton.visible = false
    end if
end sub

sub updateLabels(recordText = "Record", recordSeriesText = "Record Series")
    m.recordLabel.text = tr(recordText)
    m.recordSeriesLabel.text = tr(recordSeriesText)

    boundingRect = m.recordButton.boundingRect()
    recordButtonBackground = m.top.findNode("recordButtonBackground")
    recordButtonBackground.width = boundingRect.width
    recordButtonBackground.height = boundingRect.height
    m.recordOutline.width = recordButtonBackground.width
    m.recordOutline.height = recordButtonBackground.height

    boundingRect = m.recordSeriesButton.boundingRect()
    recordSeriesButtonBackground = m.top.findNode("recordSeriesButtonBackground")
    recordSeriesButtonBackground.width = boundingRect.width
    recordSeriesButtonBackground.height = boundingRect.height
    m.recordSeriesOutline.width = recordSeriesButtonBackground.width
    m.recordSeriesOutline.height = recordSeriesButtonBackground.height
end sub

sub channelUpdated()
    if m.top.channel = invalid
        m.top.findNode("noInfoChannelName").text = ""
        m.channelName.text = ""
    else
        m.top.findNode("noInfoChannelName").text = m.top.channel.Title
        m.channelName.text = m.top.channel.Title
        if m.top.programDetails = invalid
            m.image.uri = m.top.channel.posterURL
        end if
        m.favorite.visible = m.top.channel.favorite
    end if
end sub

sub programUpdated()

    m.top.watchSelectedChannel = false
    m.top.recordSelectedChannel = false
    m.top.recordSeriesSelectedChannel = false
    m.overview.maxLines = m.maxDetailLines
    prog = m.top.programDetails

    ' If no program selected, hide details view
    if prog = invalid
        channelUpdated()
        m.detailsView.visible = "false"
        m.noInfoView.visible = "true"
        return
    end if

    m.programName.text = prog.Title
    m.overview.text = prog.description

    m.episodeDetailsGroup.removeChildrenIndex(m.episodeDetailsGroup.getChildCount(), 0)

    if prog.isLive
        m.episodeDetailsGroup.appendChild(m.isLiveGroup)
    else if prog.isRepeat
        m.episodeDetailsGroup.appendChild(m.isRepeatGroup)
    end if

    ' Episode Number
    if prog.seasonNumber > 0 and prog.episodeNumber > 0
        m.episodeNumber.text = "S" + StrI(prog.seasonNumber).trim() + ":E" + StrI(prog.episodeNumber).trim()
        if prog.episodeTitle <> "" then m.episodeNumber.text = m.episodeNumber.text + " -" ' Add a Dash if showing Episode Number and Title
        m.episodeDetailsGroup.appendChild(m.episodeNumber)
    end if

    if prog.episodeTitle <> invalid and prog.episodeTitle <> ""
        m.episodeTitle.text = prog.episodeTitle
        m.episodeTitle.visible = true
        m.episodeDetailsGroup.appendChild(m.episodeTitle)
    end if

    m.duration.text = getDurationStringFromSeconds(prog.PlayDuration)

    ' Calculate Broadcast Details
    now = createObject("roDateTime")
    startDate = createObject("roDateTime")
    endDate = createObject("roDateTime")
    startDate.FromISO8601String(prog.StartDate)
    endDate.FromISO8601String(prog.EndDate)

    day = getRelativeDayName(startDate)

    ' Get Start Date in local timezone for display to user
    localStartDate = createObject("roDateTime")
    localStartDate.FromISO8601String(prog.StartDate)
    localStartDate.ToLocalTime()

    if startDate.AsSeconds() < now.AsSeconds() and endDate.AsSeconds() > now.AsSeconds()
        if day = "today"
            m.broadcastDetails.text = tr("Started at") + " " + formatTime(localStartDate)
        else
            m.broadcastDetails.text = tr("Started") + " " + tr(day) + ", " + formatTime(localStartDate)
        end if
    else if startDate.AsSeconds() > now.AsSeconds()
        if day = "today"
            m.broadcastDetails.text = tr("Starts at") + " " + formatTime(localStartDate)
        else
            m.broadcastDetails.text = tr("Starts") + " " + tr(day) + ", " + formatTime(localStartDate)
        end if
    else
        if day = "today"
            m.broadcastDetails.text = tr("Ended at") + " " + formatTime(localStartDate)
        else
            m.broadcastDetails.text = tr("Ended") + " " + tr(day) + ", " + formatTime(localStartDate)
        end if
    end if

    m.image.uri = prog.PosterURL

    ' If currently being recorded, change button to "Stop Recording"
    if prog.json.TimerId <> invalid
        if prog.json.SeriesTimerId <> invalid
            updateLabels("Cancel Recording", "Cancel Series Recording")
        else
            updateLabels("Cancel Recording", "Record Series")
        end if
    else
        updateLabels()
    end if

    ' If not a series, hide Record Series button
    if prog.json.isSeries <> true ' could be invalid or false
        m.recordSeriesButton.visible = false
    else
        m.recordSeriesButton.visible = true
    end if

    m.detailsView.visible = "true"
    m.noInfoView.visible = "false"

    m.top.height = m.detailsView.boundingRect().height
    m.overview.maxLines = m.maxPreviewLines
end sub

'
' Get relative date name for a date (yesterday, today, tomorrow, or otherwise weekday name )
function getRelativeDayName(date) as string

    now = createObject("roDateTime")

    ' Check for Today
    if now.AsDateString("short-date-dashes") = date.AsDateString("short-date-dashes")
        return "today"
    end if

    ' Check for Yesterday
    todayMidnight = now.AsSeconds() - (now.AsSeconds() MOD 86400)
    dateMidnight = date.AsSeconds() - (date.AsSeconds() MOD 86400)

    if todayMidnight - dateMidnight = 86400
        return "yesterday"
    end if

    if dateMidnight - todayMidnight = 86400
        return "tomorrow"
    end if

    return date.GetWeekday()

end function

'
' Get program duration string (e.g. 1h 20m)
function getDurationStringFromSeconds(seconds) as string

    hours = 0
    minutes = seconds / 60.0

    if minutes > 60
        hours = (minutes - (minutes MOD 60)) / 60
        minutes = minutes MOD 60
    end if

    if hours > 0
        return "%1h %2m".Replace("%1", StrI(hours).trim()).Replace("%2", StrI(minutes).trim())
    else
        return "%1m".Replace("%1", StrI(minutes).trim())
    end if

end function

'
' Show view channel button when item has Focus
sub focusChanged()
    if m.top.hasFocus = true
        m.overview.maxLines = m.maxDetailLines
        m.viewChannelFocusAnimationOpacity.keyValue = [0, 1]
        m.recordFocusAnimationOpacity.keyValue = [0, 1]
        m.recordSeriesFocusAnimationOpacity.keyValue = [0, 1]
        m.viewChannelButton.setFocus(true)
        m.viewChannelOutline.visible = true
        m.recordOutline.visible = false
        m.recordSeriesOutline.visible = false
        m.viewChannelButtonBackground.blendColor = "#006fab"
        m.recordButtonBackground.blendColor = "#000000"
        m.recordSeriesButtonBackground.blendColor = "#000000"
    else
        m.top.watchSelectedChannel = false
        m.top.recordSelectedChannel = false
        m.top.recordSeriesSelectedChannel = false
        m.viewChannelFocusAnimationOpacity.keyValue = [1, 0]
        m.recordFocusAnimationOpacity.keyValue = [1, 0]
        m.recordSeriesFocusAnimationOpacity.keyValue = [1, 0]
    end if

    m.focusAnimation.control = "start"

end sub

sub onAnimationComplete()
    if m.focusAnimation.state = "stopped" and m.top.hasFocus = false
        m.overview.maxLines = m.maxPreviewLines
    end if
end sub

function onKeyEvent(key as string, press as boolean) as boolean
    if not press then return false

    if key = "OK" and m.viewChannelButton.hasFocus()
        m.top.watchSelectedChannel = true
        return true
    else if key = "OK" and m.recordButton.hasFocus()
        m.top.recordSelectedChannel = true
        return true
    else if key = "OK" and m.recordSeriesButton.hasFocus()
        m.top.recordSeriesSelectedChannel = true
        return true
    end if

    if m.userCanRecord = "true"
        if key = "right" and m.viewChannelButton.hasFocus()
            m.recordButton.setFocus(true)
            m.viewChannelOutline.visible = false
            m.recordOutline.visible = true
            m.viewChannelButtonBackground.blendColor = "#000000"
            m.recordButtonBackground.blendColor = "#006fab"
            m.recordSeriesButtonBackground.blendColor = "#000000"
            return true
        else if key = "right" and m.recordButton.hasFocus()
            m.recordSeriesButton.setFocus(true)
            m.recordOutline.visible = false
            m.recordSeriesOutline.visible = true
            m.viewChannelButtonBackground.blendColor = "#000000"
            m.recordButtonBackground.blendColor = "#000000"
            m.recordSeriesButtonBackground.blendColor = "#006fab"
            return true
        else if key = "left" and m.recordSeriesButton.hasFocus()
            m.recordButton.setFocus(true)
            m.recordOutline.visible = true
            m.recordSeriesOutline.visible = false
            m.viewChannelButtonBackground.blendColor = "#000000"
            m.recordButtonBackground.blendColor = "#006fab"
            m.recordSeriesButtonBackground.blendColor = "#000000"
            return true
        else if key = "left" and m.recordButton.hasFocus()
            m.viewChannelButton.setFocus(true)
            m.viewChannelOutline.visible = true
            m.recordOutline.visible = false
            m.viewChannelButtonBackground.blendColor = "#006fab"
            m.recordButtonBackground.blendColor = "#000000"
            m.recordSeriesButtonBackground.blendColor = "#000000"
            return true
        end if
    end if

    if key = "up" or key = "down"
        return true
    end if

    return false
end function