local T, C, L = unpack(Tukui)
if T.myclass ~= 'ROGUE' then return nil end

local mod = CreateFrame('StatusBar', 'Tukui_RunicPower', UIParent)
mod:SetScript('OnEvent', function(self, event, ...) return self[event](self, ...) end)
mod:RegisterEvent('ADDON_LOADED')

function mod:ADDON_LOADED(addon)
  if addon == 'Tukui_RunicPower' then
    self:UnregisterEvent('ADDON_LOADED')

    Tukui_RunicPowerDB = Tukui_RunicPowerDB or {
      x = 0,
      y = 0,
      height = 15,
      width = 250,
    }

    self.db = Tukui_RunicPowerDB

    self:SetPoint('TOPLEFT', UIParent, 'TOPLEFT', x, y)
    self:SetWidth(self.db.width)
    self:SetHeight(self.db.height)
    self:SetMovable(true)

    self:SetWidth(self.db.width)
    self:SetHeight(self.db.height)
    self:SetStatusBarTexture(C.media.normTex)
    self:SetTemplate()
    self:CreateShadow()

    self.label = self:CreateFontString(nil, "ARTWORK")
    self.label:SetPoint("CENTER")
    self.label:SetFont(C.media.uffont, 17, "OUTLINE")
    self.label:SetJustifyH("CENTER")

    self:SetScript('OnMouseDown', self.OnMouseDown)
    self:SetScript('OnMouseUp', self.OnMouseUp)

    self:RegisterEvent('UNIT_POWER')
    self:UNIT_POWER('player') -- call this instead of directly calling ResyncValues as a sanity check

    self.InitializeSavedVariables = nil
    self.SetupSlashCommand = nil
    self.ADDON_LOADED = nil

    return true
  end
end

function mod:UNIT_POWER(unit)
  return unit == 'player' and self:ResyncValues()
end

function mod:OnMouseDown()
  if IsShiftKeyDown() then
    self:StartMoving()
    self.__moving = true
    return true
  end
end

function mod:OnMouseUp()
  if self.__moving then
    self:StopMovingOrSizing()
    self.__moving = nil

    self.db.x = self:GetLeft()
    self.db.y = self:GetTop()

    return true
  end
end

function mod:SetSize(w, h)
  w, h = tonumber(w), tonumber(h)

  self:SetWidth(w)
  self:SetHeight(h)

  self.db.width = w
  self.db.height = h

  return true
end

function mod:ResyncValues()
  local current, max = UnitPower('player'), UnitPowerMax('player')
  self:SetMinMaxValues(0, max)
  self:SetValue(current)
  self:SetStatusBarColor(1-current/max, 0.3, current/max, 1)
  self.label:SetText(current)
  return true
end

SLASH_TUKUIRP1 = '/tukuirp'
SlashCmdList.TUKUIRP = function(msg)
  return mod:SetSize(strsplit('x', msg))
end