---- #########################################################################
---- #                                                                       #
---- # Telemetry Widget script for FrSky Horus                               #
---- # Copyright (C) OpenTX                                                  #
-----#                                                                       #
---- # License GPLv2: http://www.gnu.org/licenses/gpl-2.0.html               #
---- #                                                                       #
---- # This program is free software; you can redistribute it and/or modify  #
---- # it under the terms of the GNU General Public License version 2 as     #
---- # published by the Free Software Foundation.                            #
---- #                                                                       #
---- # This program is distributed in the hope that it will be useful        #
---- # but WITHOUT ANY WARRANTY; without even the implied warranty of        #
---- # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the         #
---- # GNU General Public License for more details.                          #
---- #                                                                       #
---- #########################################################################

-- Horus Widget to display the levels of lipo battery with per cell indication
-- 3djc & Offer Shmuely
-- Date: 2020
-- ver: 0.4

local _options = {
  { "Sensor",     SOURCE, 0     },  -- default to 'Cels'
  { "Color",      COLOR,  WHITE },
  { "Shadow",     BOOL,   0     },
  { "LowestCell", BOOL,   1     }   -- 0=main voltage display shows all-cell-voltage, 1=main voltage display shows lowest-cell
}

-- This function is run once at the creation of the widget
local function create(zone, options)
  local wgt = {
    zone = zone,
    options = options,
    counter = 0,
    shadowed = 0,

    no_telem_blink = 0,
    isDataAvailable = 0,
    cellDataLive = {0,0,0,0,0,0},
    cellDataHistoryLowest = {5,5,5,5,5,5},
    cellDataHistoryCellLowest = 5,
    cellMax = 0,
    cellMin = 0,
    cellAvg = 0,
    cellPercent = 0,
    cellCount = 0,
    cellSum = 0,
    mainValue = 0,
    secondaryValue = 0
  }

  -- use default if user did not set, So widget is operational on "select widget"
  if wgt.options.Sensor == 0 then
    wgt.options.Sensor = "Cels"
  end

  wgt.options.LowestCell = wgt.options.LowestCell % 2 -- modulo due to bug that cause the value to be other than 0|1

  return wgt
end

-- This function allow updates when you change widgets settings
local function update(wgt, options)
  if (wgt == nil) then return end

  wgt.options = options

  -- use default if user did not set, So widget is operational on "select widget"
  if wgt.options.Sensor == 0 then
    wgt.options.Sensor = "Cels"
  end

  wgt.options.LowestCell = wgt.options.LowestCell % 2 -- modulo due to bug that cause the value to be other than 0|1

end

-- A quick and dirty check for empty table
local function isEmpty(self)
  for _, _ in pairs(self) do
    return false
  end
  return true
end

--- This function return the percentage remaining in a single Lipo cel
local function getCellPercent(cellValue)
  if cellValue == nil then
    return 0
  end

  -- in case somehow voltage is higher, don't return nil
  if (cellValue > 4.2) then
    return 100
  end

  -- Data gathered from commercial lipo sensors
  local myArrayPercentList = { {3,0},{3.093,1},{3.196,2},{3.301,3},{3.401,4},{3.477,5},{3.544,6},{3.601,7},{3.637,8},{3.664,9},{3.679,10},{3.683,11},{3.689,12},{3.692,13},{3.705,14},{3.71,15},{3.713,16},{3.715,17},{3.72,18},{3.731,19},{3.735,20},{3.744,21},{3.753,22},{3.756,23},{3.758,24},{3.762,25},{3.767,26},{3.774,27},{3.78,28},{3.783,29},{3.786,30},{3.789,31},{3.794,32},{3.797,33},{3.8,34},{3.802,35},{3.805,36},{3.808,37},{3.811,38},{3.815,39},{3.818,40},{3.822,41},{3.825,42},{3.829,43},{3.833,44},{3.836,45},{3.84,46},{3.843,47},{3.847,48},{3.85,49},{3.854,50},{3.857,51},{3.86,52},{3.863,53},{3.866,54},{3.87,55},{3.874,56},{3.879,57},{3.888,58},{3.893,59},{3.897,60},{3.902,61},{3.906,62},{3.911,63},{3.918,64},{3.923,65},{3.928,66},{3.939,67},{3.943,68},{3.949,69},{3.955,70},{3.961,71},{3.968,72},{3.974,73},{3.981,74},{3.987,75},{3.994,76},{4.001,77},{4.007,78},{4.014,79},{4.021,80},{4.029,81},{4.036,82},{4.044,83},{4.052,84},{4.062,85},{4.074,86},{4.085,87},{4.095,88},{4.105,89},{4.111,90},{4.116,91},{4.12,92},{4.125,93},{4.129,94},{4.135,95},{4.145,96},{4.176,97},{4.179,98},{4.193,99},{4.2,100} }

  for i, v in ipairs(myArrayPercentList) do
    if v[1] >= cellValue then
      result = v[2]
      break
    end
  end
  return result
end

--- This function returns a table with cels values
local function calculateBatteryData(wgt)

  local newCellData = getValue(wgt.options.Sensor)

  if type(newCellData) ~= "table" then
    wgt.isDataAvailable = false
    return
  end

  -- this is necessary for simu where cell-count can change
  if #wgt.cellDataHistoryLowest ~= #newCellData then
    wgt.cellDataHistoryLowest = {}
    for k, v in pairs(newCellData) do
      wgt.cellDataHistoryLowest[k] = 5 -- invalid reading, set high value so the min() will update it soon
    end
  end

  local cellMax = 0
  local cellMin = 5
  local cellSum = 0
  for k, v in pairs(newCellData) do
    -- stores the lowest cell values in historical table
    if v > 1 and v < wgt.cellDataHistoryLowest[k] then -- min 1v to consider a valid reading
      wgt.cellDataHistoryLowest[k] = v

      --- calc history lowest of all cells
      if v < wgt.cellDataHistoryCellLowest then
        wgt.cellDataHistoryCellLowest = v
      end

    end

    -- calc highest of all cells
    if v > cellMax then
      cellMax = v
    end

    --- calc lowest of all cells
    if v < cellMin and v > 1 then -- min 1v to consider a valid reading
      cellMin = v
    end
    --- sum of all cells
    cellSum = cellSum + v


  end

  wgt.cellMin = cellMin
  wgt.cellMax = cellMax
  wgt.cellCount = #newCellData
  wgt.cellSum = cellSum

  --- average of all cells
  wgt.cellAvg = wgt.cellSum / wgt.cellCount
  wgt.cellPercent = getCellPercent(wgt.cellMin)

  wgt.cellDataLive = newCellData

  -- mainValue
  if wgt.options.LowestCell == 1 then
    wgt.mainValue = wgt.cellMin
  elseif wgt.options.LowestCell == 0 then
    wgt.mainValue = wgt.cellSum
  else
    wgt.mainValue = "-1"
  end

  -- secondaryValue
  if wgt.options.LowestCell == 1 then
    wgt.secondaryValue = wgt.cellSum
  elseif wgt.options.LowestCell == 0 then
    wgt.secondaryValue = wgt.cellMin
  else
    wgt.secondaryValue = "-2"
  end


  wgt.isDataAvailable = true


end


-- color for battery
-- This function returns green at 100%, red bellow 30% and graduate in between
local function getPercentColor(percent)
  if percent < 30 then
    return lcd.RGB(0xff, 0, 0)
  else
    g = math.floor(0xdf * percent / 100)
    r = 0xdf - g
    return lcd.RGB(r, g, 0)
  end
end

-- color for cell
-- This function returns green at gvalue, red at rvalue and graduate in between
local function getRangeColor(value, green_value, red_value)
  local range = math.abs(green_value - red_value)
  if range==0 then return lcd.RGB(0, 0xdf, 0) end

  if green_value > red_value then
    if value > green_value then return lcd.RGB(0, 0xdf, 0) end
    if value < red_value   then return lcd.RGB(0xdf, 0, 0) end
    g = math.floor(0xdf * (value - red_value) / range)
    r = 0xdf - g
    return lcd.RGB(r, g, 0)
  else
    if value > green_value then return lcd.RGB(0, 0xdf, 0) end
    if value < red_value   then return lcd.RGB(0xdf, 0, 0) end
    r = math.floor(0xdf * (value - green_value) / range)
    g = 0xdf - r
    return lcd.RGB(r, g, 0)
  end
end


--- Zone size: 70x39 1/8th top bar
local function refreshZoneTiny(wgt)
  local myString = string.format("%2.1fV", wgt.mainValue)
  lcd.drawText(wgt.zone.x + wgt.zone.w -25, wgt.zone.y + 5, wgt.cellPercent .. "%", RIGHT + SMLSIZE + CUSTOM_COLOR + wgt.no_telem_blink)
  lcd.drawText(wgt.zone.x + wgt.zone.w -25, wgt.zone.y + 20, myString, RIGHT + SMLSIZE + CUSTOM_COLOR + wgt.no_telem_blink)
  -- draw batt
  lcd.drawRectangle(wgt.zone.x + 50, wgt.zone.y + 9, 16, 25, CUSTOM_COLOR, 2)
  lcd.drawFilledRectangle(wgt.zone.x +50 + 4, wgt.zone.y + 7, 6, 3, CUSTOM_COLOR)
  local rect_h = math.floor(25 * wgt.cellPercent / 100)
  lcd.drawFilledRectangle(wgt.zone.x +50, wgt.zone.y + 9 + 25 - rect_h, 16, rect_h, CUSTOM_COLOR + wgt.no_telem_blink)
end

--- Zone size: 160x32 1/8th
local function refreshZoneSmall(wgt)
  local myBatt = { ["x"] = 0, ["y"] = 0, ["w"] = 155, ["h"] = 35, ["segments_w"] = 25, ["color"] = WHITE, ["cath_w"] = 6, ["cath_h"] = 20 }

  -- draws bat
  lcd.setColor(CUSTOM_COLOR, WHITE)
  lcd.drawRectangle(wgt.zone.x + myBatt.x, wgt.zone.y + myBatt.y, myBatt.w, myBatt.h, CUSTOM_COLOR, 2)

  -- fill batt
  lcd.setColor(CUSTOM_COLOR, getPercentColor(wgt.cellPercent))
  lcd.drawGauge(wgt.zone.x + 2, wgt.zone.y + 2, myBatt.w - 4, wgt.zone.h, wgt.cellPercent, 100, CUSTOM_COLOR)

  -- write text
  if wgt.isDataAvailable then
    lcd.setColor(CUSTOM_COLOR, wgt.options.Color)
  else
    lcd.setColor(CUSTOM_COLOR, GREY)
  end
  local topLine = string.format("%2.1fV      %2.0f%%", wgt.mainValue, wgt.cellPercent)
  lcd.drawText(wgt.zone.x + 20, wgt.zone.y + 2, topLine, MIDSIZE + CUSTOM_COLOR + wgt.shadowed + wgt.no_telem_blink)

end

--- Zone size: 180x70 1/4th  (with sliders/trim)
--- Zone size: 225x98 1/4th  (no sliders/trim)
local function refreshZoneMedium(wgt)
  local myBatt = { ["x"] = 0, ["y"] = 0, ["w"] = 85, ["h"] = 35, ["segments_w"] = 15, ["color"] = WHITE, ["cath_w"] = 6, ["cath_h"] = 20 }

  if wgt.isDataAvailable then
    lcd.setColor(CUSTOM_COLOR, wgt.options.Color)
  else
    lcd.setColor(CUSTOM_COLOR, GREY)
  end

  -- draw values
  lcd.drawText(wgt.zone.x, wgt.zone.y + 35, string.format("%2.1fV", wgt.mainValue), DBLSIZE + CUSTOM_COLOR + wgt.shadowed + wgt.no_telem_blink)

  -- more info if 1/4 is high enough (without trim & slider)
  if wgt.zone.h > 80 then
    lcd.drawText(wgt.zone.x     , wgt.zone.y + 70, string.format("%2.2fV"   , wgt.secondaryValue), SMLSIZE + CUSTOM_COLOR + wgt.no_telem_blink)
    lcd.drawText(wgt.zone.x + 50, wgt.zone.y + 70, string.format("dV %2.2fV", wgt.cellMax - wgt.cellMin), SMLSIZE + CUSTOM_COLOR + wgt.no_telem_blink)
    lcd.drawText(wgt.zone.x     , wgt.zone.y + 84, string.format("Min %2.2fV", wgt.cellDataHistoryCellLowest), SMLSIZE + CUSTOM_COLOR + wgt.no_telem_blink)
  end

  -- fill batt
  lcd.setColor(CUSTOM_COLOR, getPercentColor(wgt.cellPercent))
  lcd.drawGauge(wgt.zone.x + myBatt.x, wgt.zone.y + myBatt.y, myBatt.w, myBatt.h, wgt.cellPercent, 100, CUSTOM_COLOR)

  -- draw cells
  local cellH = wgt.zone.h / wgt.cellCount
  if cellH > 20 then cellH =20 end
  local cellX = 118
  local cellW = 58
  for i = 1, wgt.cellCount, 1 do
    local cellY = wgt.zone.y + (i-1)* (cellH -1)

    -- fill current value
    lcd.setColor(CUSTOM_COLOR, getRangeColor(wgt.cellDataLive[i], wgt.cellMax, wgt.cellMax - 0.2))
    --lcd.drawFilledRectangle(wgt.zone.x + cellX     , cellY, 58, cellH, CUSTOM_COLOR)
    local percentCurrent = getCellPercent(wgt.cellDataLive[i])
    local percentMin = getCellPercent(wgt.cellDataHistoryLowest[i])

    lcd.drawFilledRectangle(wgt.zone.x + cellX     , cellY, cellW * percentCurrent / 100, cellH, CUSTOM_COLOR)
    -- fill min
    lcd.setColor(CUSTOM_COLOR, getRangeColor(wgt.cellDataHistoryLowest[i], wgt.cellMax, wgt.cellMax - 0.2))
    lcd.drawFilledRectangle(wgt.zone.x + cellX + ((percentCurrent - percentMin) / 100)    , cellY, cellW - (cellW * (percentCurrent - percentMin) / 100), cellH, CUSTOM_COLOR)

    lcd.setColor(CUSTOM_COLOR, WHITE)
    lcd.drawText           (wgt.zone.x + cellX + 10, cellY, string.format("%.2f", wgt.cellDataLive[i]), SMLSIZE + CUSTOM_COLOR + wgt.shadowed + wgt.no_telem_blink)
    lcd.drawRectangle      (wgt.zone.x + cellX     , cellY, 59, cellH, CUSTOM_COLOR , 1)
  end

  -- draws bat
  lcd.setColor(CUSTOM_COLOR, WHITE)
  lcd.drawRectangle(wgt.zone.x + myBatt.x, wgt.zone.y + myBatt.y, myBatt.w, myBatt.h, CUSTOM_COLOR, 2)
  lcd.drawFilledRectangle(wgt.zone.x + myBatt.x + myBatt.w, wgt.zone.y + myBatt.h / 2 - myBatt.cath_h / 2, myBatt.cath_w, myBatt.cath_h, CUSTOM_COLOR)
  lcd.drawText(wgt.zone.x + myBatt.x + 20, wgt.zone.y + myBatt.y + 5, string.format("%2.0f%%", wgt.cellPercent), LEFT + MIDSIZE + CUSTOM_COLOR + wgt.shadowed)

end

--- Zone size: 192x152 1/2
local function refreshZoneLarge(wgt)
  local myBatt = { ["x"] = 0, ["y"] = 18, ["w"] = 76, ["h"] = 121, ["segments_h"] = 30, ["color"] = WHITE, ["cath_w"] = 30, ["cath_h"] = 10 }

  if wgt.isDataAvailable then
    lcd.setColor(CUSTOM_COLOR, wgt.options.Color)
  else
    lcd.setColor(CUSTOM_COLOR, GREY)
  end

  lcd.drawText(wgt.zone.x + wgt.zone.w, wgt.zone.y, wgt.cellPercent .. "%", RIGHT + DBLSIZE + CUSTOM_COLOR + wgt.shadowed)
  lcd.drawText(wgt.zone.x + wgt.zone.w, wgt.zone.y + 30, string.format("%2.1fV", wgt.mainValue), RIGHT + DBLSIZE + CUSTOM_COLOR + wgt.shadowed)
  lcd.drawText(wgt.zone.x + wgt.zone.w, wgt.zone.y + 70, string.format("%2.1fV %dS", wgt.secondaryValue, wgt.cellCount), RIGHT + SMLSIZE + CUSTOM_COLOR + wgt.shadowed)
  -- fill batt
  lcd.setColor(CUSTOM_COLOR, getPercentColor(wgt.cellPercent))
  lcd.drawFilledRectangle(wgt.zone.x + myBatt.x, wgt.zone.y + myBatt.y + myBatt.h + myBatt.cath_h - math.floor(wgt.cellPercent / 100 * myBatt.h), myBatt.w, math.floor(wgt.cellPercent / 100 * myBatt.h), CUSTOM_COLOR)
  -- draw cells
  local pos = { { x = 80, y = 90 }, { x = 138, y = 90 }, { x = 80, y = 109 }, { x = 138, y = 109 }, { x = 80, y = 128 }, { x = 138, y = 128 } }
  for i = 1, wgt.cellCount, 1 do
    lcd.setColor(CUSTOM_COLOR, getRangeColor(wgt.cellDataLive[i], wgt.cellMax, wgt.cellMax - 0.2))
    lcd.drawFilledRectangle(wgt.zone.x + pos[i].x, wgt.zone.y + pos[i].y, 58, 20, CUSTOM_COLOR)
    lcd.setColor(CUSTOM_COLOR, WHITE)
    lcd.drawText(wgt.zone.x + pos[i].x + 10, wgt.zone.y + pos[i].y, string.format("%.2f", wgt.cellDataLive[i]), CUSTOM_COLOR + wgt.shadowed)
    lcd.drawRectangle(wgt.zone.x + pos[i].x, wgt.zone.y + pos[i].y, 59, 20, CUSTOM_COLOR, 1)
  end

  -- draw bat
  lcd.setColor(CUSTOM_COLOR, WHITE)
  lcd.drawRectangle(wgt.zone.x + myBatt.x, wgt.zone.y + myBatt.y + myBatt.cath_h, myBatt.w, myBatt.h, CUSTOM_COLOR, 2)
  lcd.drawFilledRectangle(wgt.zone.x + myBatt.x + myBatt.w / 2 - myBatt.cath_w / 2, wgt.zone.y + myBatt.y, myBatt.cath_w, myBatt.cath_h, CUSTOM_COLOR)
  for i = 1, myBatt.h - myBatt.segments_h, myBatt.segments_h do
    lcd.drawRectangle(wgt.zone.x + myBatt.x, wgt.zone.y + myBatt.y + myBatt.cath_h + i, myBatt.w, myBatt.segments_h, CUSTOM_COLOR, 1)
  end

end

--- Zone size: 390x172 1/1
--- Zone size: 460x252 1/1 (no sliders/trim/topbar)
local function refreshZoneXLarge(wgt)
  local myBatt = { ["x"] = 10, ["y"] = 20, ["w"] = 80, ["h"] = 121, ["segments_h"] = 30, ["color"] = WHITE, ["cath_w"] = 30, ["cath_h"] = 10 }

  lcd.setColor(CUSTOM_COLOR, wgt.options.Color)

  -- fill batt
  lcd.setColor(CUSTOM_COLOR, getPercentColor(wgt.cellPercent))
  lcd.drawFilledRectangle(wgt.zone.x + myBatt.x, wgt.zone.y + myBatt.y + myBatt.h + myBatt.cath_h - math.floor(wgt.cellPercent / 100 * myBatt.h), myBatt.w, math.floor(wgt.cellPercent / 100 * myBatt.h), CUSTOM_COLOR)

  -- draw right text section
  if wgt.isDataAvailable then
    lcd.setColor(CUSTOM_COLOR, wgt.options.Color)
  else
    lcd.setColor(CUSTOM_COLOR, GREY)
  end
  lcd.drawText(wgt.zone.x + wgt.zone.w, wgt.zone.y + myBatt.y, wgt.cellPercent .. "%", RIGHT + DBLSIZE + CUSTOM_COLOR + wgt.shadowed + wgt.no_telem_blink)

  lcd.drawText(wgt.zone.x + wgt.zone.w, wgt.zone.y + myBatt.y + 30, string.format("%2.1fV", wgt.mainValue), RIGHT + DBLSIZE + CUSTOM_COLOR + wgt.shadowed + wgt.no_telem_blink)
  lcd.drawText(wgt.zone.x + wgt.zone.w, wgt.zone.y + myBatt.y + 105, string.format("%2.1fV %dS", wgt.secondaryValue, wgt.cellCount), RIGHT + SMLSIZE + CUSTOM_COLOR + wgt.shadowed + wgt.no_telem_blink)

  -- draw cells
  local pos = { { x = 111, y = 38 }, { x = 164, y = 38 }, { x = 217, y = 38 }, { x = 111, y = 57 }, { x = 164, y = 57 }, { x = 217, y = 57 } }
  for i = 1, wgt.cellCount, 1 do
    lcd.setColor(CUSTOM_COLOR, getRangeColor(wgt.cellDataLive[i], wgt.cellMax, wgt.cellMax - 0.2))
    lcd.drawFilledRectangle(wgt.zone.x + pos[i].x, wgt.zone.y + pos[i].y, 53, 20, CUSTOM_COLOR)
    lcd.setColor(CUSTOM_COLOR, WHITE)
    lcd.drawText(wgt.zone.x + pos[i].x + 10, wgt.zone.y + pos[i].y, string.format("%.2f", wgt.cellDataLive[i]), CUSTOM_COLOR + wgt.shadowed + wgt.no_telem_blink)
    lcd.drawRectangle(wgt.zone.x + pos[i].x, wgt.zone.y + pos[i].y, 54, 20, CUSTOM_COLOR, 1)
  end
  -- draw cells for lowest cells
  local pos = { { x = 111, y = 110 }, { x = 164, y = 110 }, { x = 217, y = 110 }, { x = 111, y = 129 }, { x = 164, y = 129 }, { x = 217, y = 129 } }
  for i = 1, wgt.cellCount, 1 do
    lcd.setColor(CUSTOM_COLOR, getRangeColor(wgt.cellDataHistoryLowest[i], wgt.cellDataLive[i], wgt.cellDataLive[i] - 0.3))
    lcd.drawFilledRectangle(wgt.zone.x + pos[i].x, wgt.zone.y + pos[i].y, 53, 20, CUSTOM_COLOR)
    lcd.setColor(CUSTOM_COLOR, WHITE)
    lcd.drawRectangle(wgt.zone.x + pos[i].x, wgt.zone.y + pos[i].y, 54, 20, CUSTOM_COLOR, 1)
    lcd.drawText(wgt.zone.x + pos[i].x + 10, wgt.zone.y + pos[i].y, string.format("%.2f", wgt.cellDataHistoryLowest[i]), CUSTOM_COLOR + wgt.shadowed + wgt.no_telem_blink)
  end

  -- draws bat
  lcd.setColor(CUSTOM_COLOR, WHITE)
  lcd.drawRectangle(wgt.zone.x + myBatt.x, wgt.zone.y + myBatt.y + myBatt.cath_h, myBatt.w, myBatt.h, CUSTOM_COLOR, 2)
  lcd.drawFilledRectangle(wgt.zone.x + myBatt.x + myBatt.w / 2 - myBatt.cath_w / 2, wgt.zone.y + myBatt.y, myBatt.cath_w, myBatt.cath_h, CUSTOM_COLOR)
  for i = 1, myBatt.h - myBatt.segments_h, myBatt.segments_h do
    lcd.drawRectangle(wgt.zone.x + myBatt.x, wgt.zone.y + myBatt.y + myBatt.cath_h + i, myBatt.w, myBatt.segments_h, CUSTOM_COLOR, 1)
  end
  -- draw middle rectangles
  lcd.drawRectangle(wgt.zone.x + 110, wgt.zone.y + 38, 161, 40, CUSTOM_COLOR, 1)
  lcd.drawText(wgt.zone.x + 220, wgt.zone.y + 21, "Live data", RIGHT + SMLSIZE + INVERS + CUSTOM_COLOR + wgt.shadowed)
  lcd.drawRectangle(wgt.zone.x + 110, wgt.zone.y + 110, 161, 40, CUSTOM_COLOR, 1)
  lcd.drawText(wgt.zone.x + 230, wgt.zone.y + 93, "Lowest data", RIGHT + SMLSIZE + INVERS + CUSTOM_COLOR + wgt.shadowed)
  return
end

-- This function allow recording of lowest cells when widget is in background
local function background(wgt)
  if (wgt == nil) then return end

  calculateBatteryData(wgt)

end

local function refresh(wgt)

  if (wgt         == nil) then return end
  if (wgt.options == nil) then return end
  if (wgt.zone    == nil) then return end
  if (wgt.options.LowestCell == nil) then return end

  if wgt.options.Shadow == 1 then
    wgt.shadowed = SHADOWED
  else
    wgt.shadowed = 0
  end


  calculateBatteryData(wgt)

  if wgt.isDataAvailable then
    wgt.no_telem_blink = 0
  else
    wgt.no_telem_blink = INVERS + BLINK
  end


  if     wgt.zone.w  > 380 and wgt.zone.h > 165 then refreshZoneXLarge(wgt)
  elseif wgt.zone.w  > 180 and wgt.zone.h > 145 then refreshZoneLarge(wgt)
  elseif wgt.zone.w  > 170 and wgt.zone.h >  65 then refreshZoneMedium(wgt)
  elseif wgt.zone.w  > 150 and wgt.zone.h >  28 then refreshZoneSmall(wgt)
  elseif wgt.zone.w  >  65 and wgt.zone.h >  35 then refreshZoneTiny(wgt)
  end

end

return { name="BattCheck", options=_options, create=create, update=update, background=background, refresh=refresh }