function init()
  m.top.ObserveField("pucidHash", "onUpdatePucidHash")

  m.title = m.top.findNode("title")
  m.title.font.size=248
  m.title.color="0x62C7FF18"

  title_font_size = 34
  font_size = 32
  m.updates = m.top.findNode("updates")
  m.updates.font.size=font_size
  m.updates.color="0x52C7F8FF"
  m.updates.lineSpacing = 8

  m.updates_title = m.top.findNode("updates_title")
  m.updates_title.font.size=title_font_size
  m.updates_title.color="0x62E7FFFF"
  m.updates_title.text = "Launch Parameters"

  m.updates_lower = m.top.findNode("updates_lower")
  m.updates_lower.font.size=font_size
  m.updates_lower.color="0x52C7F8FF"
  m.updates_lower.text = ""
  m.updates_lower.lineSpacing = 8

  m.updates_lower_title = m.top.findNode("updates_lower_title")
  m.updates_lower_title.font.size=title_font_size
  m.updates_lower_title.color="0x62E7FFFF"
  m.updates_lower_title.text = "Events"

  m.updates_right = m.top.findNode("updates_right")
  m.updates_right.font.size=font_size
  m.updates_right.color="0x52C7F8FF"
  m.updates_right.lineSpacing = 8

  m.updates_right_title = m.top.findNode("updates_right_title")
  m.updates_right_title.font.size=title_font_size
  m.updates_right_title.color="0x62E7FFFF"
  m.updates_right_title.text = "Test Output (Press  ↑  ↓ OK)"

  m.title_color = "0x20204080"
  m.title_focus_color = "0x4060B0A0"
  m.tl_rect = m.top.findNode("updates_title_rect")
  m.tl_rect.color = m.title_color
  m.bl_rect = m.top.findNode("updates_lower_title_rect")
  m.bl_rect.color = m.title_color
  m.r_rect = m.top.findNode("updates_right_title_rect")
  m.r_rect.color = m.title_color
  label_color = "0x00002080"
  r = m.top.findNode("updates_rect")
  r.color = label_color
  r = m.top.findNode("updates_lower_rect")
  r.color = label_color
  r = m.top.findNode("updates_right_rect")
  r.color = label_color

  ' m.logger = CreateObject("roLogger")

  m.myTask = CreateObject("roSGNode", "MyTask")
  m.myTask.ObserveField("updateText", "onUpdateText")
  m.myTask.ObserveField("updateTextLower", "onUpdateTextLower")
  m.myTask.control = "RUN"

  m.testTask = CreateObject("roSGNode", "TestTask")
  m.testTask.ObserveField("updateText", "onUpdateTextRight")
  ' Note m.top.pucidHash is not set at this point, so we can't set it for testTask either.
  m.testTask.control = "RUN"

  texttimer = m.top.findNode("textTimer")
  texttimer.observeField("fire", "timerUpdate")
  texttimer.control = "start"

  m.rightLineCount = 100
  m.rightVisibleLines = 21
  m.rightTopVisibleLine = 0
  m.updates_lower_array = CreateObject("roArray", 10, true)
  m.updates_right_array = CreateObject("roArray", m.rightLineCount, true)

  m.focus_rect = 1
  m.prevLeftFocus = 0
  doUpdateFocus()

  m.top.setFocus(true)
end function


function onUpdatePucidHash() as void
    m.testTask.setField("pucidHash", m.top.pucidHash)
end function


function onUpdateText() as void
   if m.updates.text.Len() = 0
       m.updates.text = m.myTask.updateText
   else
       m.updates.text = m.updates.text + chr(10) + m.myTask.updateText
   end if
   print m.myTask.updateText
   ' m.logger.logConsole("upperleft", [m.myTask.updateText])
end function


function onUpdateTextLower() as void
   updateTextLower(m.myTask.updateTextLower)
end function


function updateTextLower(s as String) as void
    while m.updates_lower_array.Count() > 9
        m.updates_lower_array.Shift()
    end while
    m.updates_lower_array.Push(s)
    m.updates_lower.text = m.updates_lower_array.Join(chr(10))
    print s
    ' m.logger.logConsole("lowerleft", [s])
end function


function showTextRight() as void
    visibleWindow = []
    max = m.updates_right_array.Count() - m.rightTopVisibleLine
    if max > m.rightVisibleLines then
        max = m.rightVisibleLines
    end if
    for i = 0 to max - 1
        visibleWindow.Push(m.updates_right_array[m.rightTopVisibleLine + i])
    end for
    m.updates_right.text = visibleWindow.Join(chr(10))
end function


function onUpdateTextRight() as void
    while m.updates_right_array.Count() > m.rightLineCount - 1
        m.updates_right_array.Shift()
    end while
    m.updates_right_array.Push(m.testTask.updateText)
    ' Jump visible window to bottom
    m.rightTopVisibleLine = m.updates_right_array.Count() - m.rightVisibleLines
    if m.rightTopVisibleLine < 0 then
        m.rightTopVisibleLine = 0
    end if
    showTextRight()
    print m.testTask.updateText
   ' m.logger.logConsole("right", [m.testTask.updateText])
end function


function onKeyEvent(key as String, press as Boolean) as Boolean
    handled = false
    if press then
        if key = "back" then
            handled = false
        else
            update_ui = false
            if key = "OK" and m.focus_rect = 1
                m.testTask.control = "RUN"
            elseif key = "up"
                if m.focus_rect = 3
                    m.focus_rect = 0
                    update_ui = true
                elseif m.focus_rect = 1
                    if m.rightTopVisibleLine > 0
                        m.rightTopVisibleLine = m.rightTopVisibleLine - 1
                        showTextRight()
                    endif
                endif
            elseif key = "right"
                if m.focus_rect = 0
                    m.prevLeftFocus = 0
                    m.focus_rect = 1
                    update_ui = true
                elseif m.focus_rect = 3
                    m.prevLeftFocus = 3
                    m.focus_rect = 1
                    update_ui = true
                endif
            elseif key = "down"
                if m.focus_rect = 0
                    m.focus_rect = 3
                    update_ui = true
                elseif m.focus_rect = 1
                    if m.rightTopVisibleLine < m.updates_right_array.Count() - 1
                        m.rightTopVisibleLine = m.rightTopVisibleLine + 1
                        showTextRight()
                    endif
                endif
            elseif key = "left"
                if m.focus_rect = 1:
                    m.focus_rect = m.prevLeftFocus
                    update_ui = true
                endif
            end if
            if update_ui
                doUpdateFocus()
            endif

            dt = CreateObject("roDateTime")
            dt.ToLocalTime()
            hms = Mid(dt.ToISOString(), 12, 8)
            updateTextLower(hms + " " + key)
            handled = true
        end if
    end if
    return handled
end function


sub doUpdateFocus()
    if m.focus_rect = 0
        m.tl_rect.color = m.title_focus_color
        m.bl_rect.color = m.title_color
        m.r_rect.color = m.title_color
    elseif m.focus_rect = 1 or m.focus_rect = 2
        m.tl_rect.color = m.title_color
        m.bl_rect.color = m.title_color
        m.r_rect.color = m.title_focus_color
    elseif m.focus_rect = 3
        m.tl_rect.color = m.title_color
        m.bl_rect.color = m.title_focus_color
        m.r_rect.color = m.title_color
    end if
end sub


sub timerUpdate()
  ' Not needed, but nice to have as an example.
  ' print "timerUpdate called."
end sub