SLASH_RELOAD1 = '/rl'
function SlashCmdList.RELOAD(msg, editbox)
  ReloadUI()
end

SLASH_PFUI1 = '/pfui'
function SlashCmdList.PFUI(msg, editbox)
  if pfUI.gui:IsShown() then
    pfUI.gui:Hide()
  else
    pfUI.gui:Show()
  end
end

SLASH_GM1, SLASH_GM2 = '/gm', '/support'
function SlashCmdList.GM(msg, editbox)
  ToggleHelpFrame(1)
end

pfUI = CreateFrame("Frame",nil,UIParent)
pfUI:RegisterEvent("ADDON_LOADED")

-- initialize default variables
pfUI.cache = {}
pfUI.module = {}
pfUI.modules = {}
pfUI.environment = {}
pfUI.movables = {}

pfLocaleClass = {}
pfLocaleBagtypes = {}
pfLocaleInvtypes = {}
pfLocaleShift = {}
pfLocaleSpells = {}
pfLocaleSpellEvents = {}
pfLocaleSpellInterrupts = {}
pfLocaleHunterbars = {}

pfUI:SetScript("OnEvent", function()

  -- some addons overwrite color and font settings
  -- need to enforce pfUI's selection every time
  pfUI.environment:UpdateFonts()
  pfUI.environment:UpdateColors()

  if arg1 == "pfUI" then
    if not pfUI_init then
      pfUI_init = {}
    end

    if not pfUI_profiles then
      pfUI_profiles = {}
    end

    pfUI:LoadConfig()

    -- reload environment
    pfUI.environment:UpdateFonts()
    pfUI.environment:UpdateColors()

    -- fill the cache
    pfUI.cache["locale"] = GetLocale()
    if pfUI.cache["locale"] ~= "enUS" and
       pfUI.cache["locale"] ~= "frFR" and
       pfUI.cache["locale"] ~= "deDE" and
       pfUI.cache["locale"] ~= "zhCN" and
       pfUI.cache["locale"] ~= "ruRU" then
       pfUI.cache["locale"] = "enUS"
    end

    for i,m in pairs(this.modules) do
      -- do not load disabled modules
      if pfUI_config["disabled"] and pfUI_config["disabled"][m]  == "1" then
        -- message("DEBUG: module " .. m .. " has been disabled")
      else
        pfUI.module[m]()
      end
    end
  end
end)

function pfUI:RegisterModule(n, f)
  pfUI.module[n] = f
  table.insert(pfUI.modules, n)
end

pfUI.backdrop = {
  bgFile = "Interface\\AddOns\\pfUI\\img\\col", tile = true, tileSize = 8,
  edgeFile = "Interface\\AddOns\\pfUI\\img\\border", edgeSize = 8,
  insets = {left = -1, right = -1, top = -1, bottom = -1},
}

pfUI.backdrop_small = {
  bgFile = "Interface\\AddOns\\pfUI\\img\\col", tile = true, tileSize = 8,
  insets = {left = -1, right = -1, top = -1, bottom = -1},
}

pfUI.backdrop_underline = {
  edgeFile = "Interface\\AddOns\\pfUI\\img\\underline", edgeSize = 8,
  insets = {left = 0, right = 0, top = 0, bottom = 0},
}

message = function (msg)
  DEFAULT_CHAT_FRAME:AddMessage("|cffcccc33INFO: |cffffff55"..msg)
end

ScriptErrors:SetScript("OnShow", function(msg)
  DEFAULT_CHAT_FRAME:AddMessage("|cffcc3333ERROR: |cffff5555"..ScriptErrors_Message:GetText())
  ScriptErrors:Hide()
end)

pfUI.firstrun = CreateFrame("Frame", "pfFirstRunWizard", UIParent)
pfUI.firstrun.steps = {}
pfUI.firstrun.next = nil

pfUI.firstrun:RegisterEvent("PLAYER_ENTERING_WORLD")
pfUI.firstrun:SetScript("OnEvent", function() pfUI.firstrun:NextStep() end)

function pfUI.firstrun:AddStep(name, yfunc, nfunc, descr, cmpnt)
  if not name then return end
  pfUI.firstrun.steps[name] = {}
  if yfunc then pfUI.firstrun.steps[name].yfunc = yfunc end
  if nfunc then pfUI.firstrun.steps[name].nfunc = nfunc end
  if descr then pfUI.firstrun.steps[name].descr = descr end
  if cmpnt then pfUI.firstrun.steps[name].cmpnt = cmpnt end
end

function pfUI.firstrun:NextStep()
  if pfUI_init and next(pfUI_init) == nil then
    local yes = function()
      this:GetParent():Hide()
      pfUI_init["welcome"] = true
      pfUI.firstrun:NextStep()
    end

    local no = function()
      this:GetParent():Hide()
    end

    pfUI.api:CreateQuestionDialog("Welcome to |cff33ffccpf|cffffffffUI|r!\n\n"..
    "I'm the first run wizzard that will guide you through some basic configuration.\n"..
    "You'll now be prompted for several questions. To get a default installation,\n"..
    "you might want to click \"Okay\" everywhere. A few settings are client settings\n"..
    "(e.g chat questions) so if you don't want to lose your chat configurations, you\n"..
    "should be careful with your choices.\n\n"..
    "Visit |cff33ffcchttp://shagu.org|r to check for the latest version.", yes, no)
    return
  end

  for name, step in pairs(pfUI.firstrun.steps) do
    if not pfUI_init[name] then
      local function yes()
        pfUI_init[name] = true
        if step.yfunc then step.yfunc() end
        this:GetParent():Hide()
        pfUI.firstrun:NextStep()
      end

      local function no()
        pfUI_init[name] = true
        if step.nfunc then step.nfunc() end
        this:GetParent():Hide()
        pfUI.firstrun:NextStep()
      end

      if step.cmpnt and step.cmpnt == "edit" then
        pfUI.api:CreateQuestionDialog(step.descr, yes, no, true)
      else
        pfUI.api:CreateQuestionDialog(step.descr, yes, no, false)
      end

      return
    end
  end
end

pfUI.info = CreateFrame("Button", "pfInfoBox", UIParent)
pfUI.info:Hide()

pfUI.info.text = pfUI.info:CreateFontString("Status", "HIGH", "GameFontNormal")
pfUI.info.text:ClearAllPoints()
pfUI.info.text:SetFontObject(GameFontWhite)

pfUI.info.timeout = CreateFrame("StatusBar", nil, pfUI.info)
pfUI.info.timeout:SetStatusBarTexture("Interface\\AddOns\\pfUI\\img\\bar")
pfUI.info.timeout:SetStatusBarColor(.3,1,.8,1)

function pfUI.info:ShowInfoBox(text, time, parent, height)
  if not text then return end
  if not time then time = 5 end
  if not parent then parent = UIParent end
  if not height then height = 100 end

  pfUI.info:SetParent(parent)
  pfUI.info:ClearAllPoints()
  pfUI.info.text:SetAllPoints(pfUI.info)
  pfUI.info.text:SetText(text)
  pfUI.info.text:SetFont(pfUI.font_default, 14, "OUTLINE")

  pfUI.info:SetWidth(pfUI.info.text:GetStringWidth() + 50)
  pfUI.info:SetHeight(height)
  pfUI.info:SetFrameStrata("DIALOG")
  pfUI.api:CreateBackdrop(pfUI.info)
  pfUI.info:SetPoint("TOP", 0, -25)

  pfUI.info.timeout:ClearAllPoints()
  pfUI.info.timeout:SetPoint("TOPLEFT", pfUI.info, "TOPLEFT", 3, -3)
  pfUI.info.timeout:SetPoint("TOPRIGHT", pfUI.info, "TOPRIGHT", -3, 3)
  pfUI.info.timeout:SetHeight(2)
  pfUI.info.timeout:SetMinMaxValues(0, time)
  pfUI.info.timeout:SetValue(time)

  pfUI.info.duration = time
  pfUI.info.lastshow = GetTime()
  pfUI.info:Show()
end

pfUI.info:SetScript("OnUpdate", function()
  local time = pfUI.info.lastshow + pfUI.info.duration - GetTime()
  pfUI.info.timeout:SetValue(time)

  if GetTime() > pfUI.info.lastshow + pfUI.info.duration then
    pfUI.info:SetAlpha(pfUI.info:GetAlpha()-0.05)
  end

  if pfUI.info:GetAlpha() <= 0.1 then
    pfUI.info:Hide()
    pfUI.info:SetAlpha(1)
  end
end)

pfUI.info:SetScript("OnClick", function() this:Hide() end)