---------------------------------------------------------
-- Spell Alert
local formatgs = function(gstring, anchor)
	gstring = string.gsub(gstring,"([%^%(%)%.%[%]%*%+%-%?])","%%%1")
	gstring = string.gsub(gstring,"%%s","(.+)")
	gstring = string.gsub(gstring,"%%d","(%-?%%d+)")
	if anchor then gstring = "^"..gstring end
	return gstring
end

local casting = formatgs(SPELLCASTOTHERSTART)
local totem = formatgs(SPELLCASTGOOTHER)
local buff = formatgs(AURAADDEDOTHERHELPFUL)

local istotem = "Totem"

if GetLocale()=="koKR" then
	istotem = "토템"
elseif GetLocale()=="zhCN" then
	istotem = "图腾"
elseif GetLocale()=="zhTW" then
	istotem = "圖騰"
elseif GetLocale()=="esES" then
	istotem = "Tótem"
end

local inparty = function(unit)
	for i = 1, GetNumPartyMembers() do
		local name = UnitName("party"..i)
		if name == unit then
			return true
		end
	end
end

local spellevent = function()
	local unit, spell
	if event == "CHAT_MSG_SPELL_HOSTILEPLAYER_DAMAGE" then
		for unit, spell in string.gmatch(arg1, casting) do
			if not inparty(unit) then
				Nurfed_SpellAlert:AddMessage("nrf:"..format(SPELLCASTOTHERSTART, unit, "|cffff0000"..spell.."|r"))
			end
		end
	elseif event == "CHAT_MSG_SPELL_HOSTILEPLAYER_BUFF" then
		for unit, spell in string.gmatch(arg1, casting) do
			if not inparty(unit) then
				Nurfed_SpellAlert:AddMessage("nrf:"..format(SPELLCASTOTHERSTART, unit, "|cffffff00"..spell.."|r"))
			end
			return
		end

		for unit, spell in string.gmatch(arg1, totem) do
			if not inparty(unit) and string.find(spell, istotem) then
				Nurfed_SpellAlert:AddMessage("nrf:"..format(SPELLCASTGOOTHER, unit, "|cff999999"..spell.."|r"))
			end
			return
		end

		for unit, spell in string.gmatch(arg1, buff) do
			if string.find(spell, "^%a") then
				Nurfed_BuffAlert:AddMessage("nrf:"..format(AURAADDEDOTHERHELPFUL, unit, "|cff00ff00"..spell.."|r"))
			end
			return
		end
	elseif event == "CHAT_MSG_SPELL_PERIODIC_HOSTILEPLAYER_BUFFS" then
		for unit, spell in string.gmatch(arg1, buff) do
			if string.find(spell, "^%a") then
				Nurfed_BuffAlert:AddMessage("nrf:"..format(AURAADDEDOTHERHELPFUL, unit, "|cff00ff00"..spell.."|r"))
			end
		end
	end
end
-- Drag Handle by Apoco
local createhandle = function(name, title)
	if not name or not title then return end
	local f = CreateFrame("Frame", name, UIParent)
	f:SetWidth(110)
	f:SetHeight(13)
	f:SetBackdrop({
		bgFile = "Interface\\Tooltips\\UI-Tooltip-Background",
		tile = true,
		tileSize = 16,
		insets = { left = 0, right = 0, top = 0, bottom = 0 }
		})
	f:SetBackdropColor(0,0,0)
	f:SetMovable()
	f:EnableMouse()
	f:RegisterForDrag("LeftButton")
	f:SetClampedToScreen()
	f:Hide()
	if not f:IsUserPlaced() then
		f:SetPoint("CENTER")
	end

	-- font
	f.text = f:CreateFontString(nil, "OVERLAY")
	f.text:SetPoint("CENTER")
	f.text:SetFontObject("GameFontNormalSmall")
	f.text:SetText(title)
	f.text:SetTextColor(1,1,1)
	
	-- dragging
	f:SetScript("OnDragStart", function(self)
		if (not NRF_LOCKED and not InCombatLockdown() and IsAddOnLoaded("Nurfed")) or not IsAddOnLoaded("Nurfed") then
			self:StartMoving()
		end
	end)
	f:SetScript("OnDragStop", function(self)
		if (not NRF_LOCKED and not InCombatLockdown() and IsAddOnLoaded("Nurfed")) or not IsAddOnLoaded("Nurfed") then
		  self:StopMovingOrSizing()
		  self:SetUserPlaced(true)
		 end
	end)
end
createhandle("Nrf_SpellAlert", "Nurfed_SpellAlert")

CreateFrame("MessageFrame", "Nurfed_SpellAlert", UIParent)
Nurfed_SpellAlert:SetWidth(UIParent:GetWidth())
Nurfed_SpellAlert:SetHeight(20)
Nurfed_SpellAlert:SetInsertMode("TOP")
Nurfed_SpellAlert:SetFrameStrata("HIGH")
Nurfed_SpellAlert:SetTimeVisible(1)
Nurfed_SpellAlert:SetFadeDuration(0.5)
Nurfed_SpellAlert:SetFont("Fonts\\FRIZQT__.TTF", 18, "OUTLINE")
Nurfed_SpellAlert:SetPoint("CENTER", "Nrf_SpellAlert", 0, -13)
Nurfed_SpellAlert:RegisterEvent("CHAT_MSG_SPELL_HOSTILEPLAYER_DAMAGE")
Nurfed_SpellAlert:RegisterEvent("CHAT_MSG_SPELL_HOSTILEPLAYER_BUFF")
Nurfed_SpellAlert:RegisterEvent("CHAT_MSG_SPELL_PERIODIC_HOSTILEPLAYER_BUFFS")
Nurfed_SpellAlert:SetScript("OnEvent", spellevent)

createhandle("Nrf_BuffAlert", "Nurfed_BuffAlert")

CreateFrame("MessageFrame", "Nurfed_BuffAlert", UIParent)
Nurfed_BuffAlert:SetWidth(UIParent:GetWidth())
Nurfed_BuffAlert:SetHeight(20)
Nurfed_BuffAlert:SetInsertMode("TOP")
Nurfed_BuffAlert:SetFrameStrata("HIGH")
Nurfed_BuffAlert:SetTimeVisible(1)
Nurfed_BuffAlert:SetFadeDuration(0.5)
Nurfed_BuffAlert:SetFont("Fonts\\FRIZQT__.TTF", 18, "OUTLINE")

Nurfed_BuffAlert:SetPoint("CENTER", "Nrf_BuffAlert", 0, -13)

if IsAddOnLoaded("Nurfed") then
	Nurfed:regevent("NURFED_LOCK", function()
    if NRF_LOCKED then
      Nrf_BuffAlert:Hide()
      Nrf_SpellAlert:Hide()
		else
			Nrf_BuffAlert:Show()
			Nrf_SpellAlert:Show()
		end
	end)
end