local E, L, V, P, G = unpack(ElvUI);
local CH = E:GetModule('Chat')
local SLE = E:GetModule('SLE');
local LSM = LibStub("LibSharedMedia-3.0")
local CreatedFrames = 0;
local lfgRoles = {};
local chatFilters = {};
local lfgChannels = {
	"PARTY_LEADER",
	"PARTY",
	"RAID",
	"RAID_LEADER",
	"INSTANCE_CHAT",
	"INSTANCE_CHAT_LEADER",
	"RAID_WARNING",
}

local Myname = E.myname
local GetGuildRosterInfo = GetGuildRosterInfo
local IsInGuild = IsInGuild
local GuildMaster = ""
local GMName, GMRealm

local len, gsub, find, sub, gmatch, format, random = string.len, string.gsub, string.find, string.sub, string.gmatch, string.format, math.random
local tinsert, tremove, tsort, twipe, tconcat = table.insert, table.remove, table.sort, table.wipe, table.concat

local PLAYER_REALM = gsub(E.myrealm,'[%s%-]','')
local PLAYER_NAME = Myname.."-"..PLAYER_REALM

local leader = [[|TInterface\GroupFrame\UI-Group-LeaderIcon:12:12|t]]
local specialChatIcons

--Damage Meter Spam stuff--
CH.MeterSpam = false
CH.ChannelEvents = {
	"CHAT_MSG_CHANNEL",
	"CHAT_MSG_GUILD",
	"CHAT_MSG_OFFICER",
	"CHAT_MSG_PARTY",
	"CHAT_MSG_PARTY_LEADER",
	"CHAT_MSG_INSTANCE_CHAT",
	"CHAT_MSG_INSTANCE_CHAT_LEADER",
	"CHAT_MSG_RAID",
	"CHAT_MSG_RAID_LEADER",
	"CHAT_MSG_SAY",
	"CHAT_MSG_WHISPER",
	"CHAT_MSG_WHISPER_INFORM",
	"CHAT_MSG_YELL",
}
CH.spamFirstLines = {
	"^Recount - (.*)$", --Recount
	"^Skada: (.*) for (.*):$", -- Skada enUS
	"^Skada: (.*) por (.*):$", -- Skada esES/ptBR
	"^Skada: (.*) für (.*):$", -- Skada deDE
	"^Skada: (.*) pour (.*):$", -- Skada frFR
	"^Skada: (.*) per (.*):$", -- Skada itIT
	"^(.*) 의 Skada 보고 (.*):$", -- Skada koKR
	"^Отчёт Skada: (.*), с (.*):$", -- Skada ruRU
	"^Skada报告(.*)的(.*):$", -- Skada zhCN
	"^Skada:(.*)來自(.*):$", -- Skada zhTW
	"^(.*) Done for (.*)$", -- TinyDPS
	"^Numeration: (.*)$", -- Numeration
	"^Details! Report for (.*)$" -- Details!
}
CH.spamNextLines = {
	"^(%d+)\. (.*)$", --Recount, Details! and Skada
	"^(.*)   (.*)$", --Additional Skada
	"^Numeration: (.*)$", -- Numeration
	"^[+-]%d+.%d", -- Numeration Deathlog Details
	"^(%d+). (.*):(.*)(%d+)(.*)(%d+)%%(.*)%((%d+)%)$", -- TinyDPS
	"^(.+) (%d-%.%d-%w)$", -- Skada 2
	'|c%x-|H.-|h(%[.-%])|h|r (%d-%.%d-%w %(%d-%.%d-%%%))', --Skada 3
}
CH.Meters = {}

local function Style(self, frame)
	CreatedFrames = frame:GetID()
end

--Replacement of chat tab position and size function
local PixelOff = E.PixelMode and 33 or 27

local function PositionChat(self, override, noSave)
	if ((InCombatLockdown() and not override and self.initialMove) or (IsMouseButtonDown("LeftButton") and not override)) then return end
	if not RightChatPanel or not LeftChatPanel then return; end
	if not self.db.lockPositions or E.private.chat.enable ~= true then return end
	if not E.db.sle.datatext.chathandle then return end

	local BASE_OFFSET = 60
	if E.PixelMode then
		BASE_OFFSET = BASE_OFFSET - 3
	end
	local chat, id, isDocked, point
	for i=1, CreatedFrames do
		chat = _G[format("ChatFrame%d", i)]
		id = chat:GetID()
		tab = _G[format("ChatFrame%sTab", i)]
		point = GetChatWindowSavedPosition(id)
		isDocked = chat.isDocked

		if chat:IsShown() and not (id > NUM_CHAT_WINDOWS) and id == CH.RightChatWindowID then
			chat:ClearAllPoints()
			if E.db.datatexts.rightChatPanel then
				chat:Point("BOTTOMRIGHT", RightChatDataPanel, "TOPRIGHT", 10, 3)
			else
				BASE_OFFSET = BASE_OFFSET - 24
				chat:SetPoint("BOTTOMLEFT", RightChatPanel, "BOTTOMLEFT", 4, 4)
			end
			if id ~= 2 then
				chat:Size((E.db.chat.separateSizes and E.db.chat.panelWidthRight or E.db.chat.panelWidth) - 10, ((E.db.chat.separateSizes and E.db.chat.panelHeightRight or E.db.chat.panelHeight) - PixelOff))
			end
		elseif not isDocked and chat:IsShown() then

		else
			if id ~= 2 and not (id > NUM_CHAT_WINDOWS) then
				BASE_OFFSET = BASE_OFFSET - 24
				chat:SetPoint("BOTTOMLEFT", LeftChatPanel, "BOTTOMLEFT", 4, 4)
				chat:Size(E.db.chat.panelWidth - 10, E.db.chat.panelHeight - PixelOff)
			end
		end
	end
end

local function GetChatIcon(sender)
	if not specialChatIcons then
		SLE:GetRegion()
		specialChatIcons = SLE.SpecialChatIcons[SLE.region]
	end
	local senderName, senderRealm
	if sender then
		senderName, senderRealm = string.split('-', sender)
	else
		senderName = Myname
	end
	senderRealm = senderRealm or PLAYER_REALM
	senderRealm = senderRealm:gsub(' ', '')

	if specialChatIcons[senderRealm] and specialChatIcons[senderRealm][senderName] then
		return specialChatIcons[senderRealm][senderName]
	end

	if not IsInGuild() then return "" end
	if not E.db.sle.chat.guildmaster then return "" end
	if senderName == GMName and senderRealm == GMRealm then
		return leader
	end

	return ""
end

function CH:GetPluginReplacementIcon(arg2, arg6, type)
	local icon = ""
	if arg6 and (strlen(arg6) > 0) then
		if ( arg6 == "GM" ) then
			--If it was a whisper, dispatch it to the GMChat addon.
			if ( type == "WHISPER" ) then
				return;
			end
			--Add Blizzard Icon, this was sent by a GM
			icon = "|TInterface\\ChatFrame\\UI-ChatIcon-Blizz:12:20:0:0:32:16:4:28:0:16|t ";
		elseif ( arg6 == "DEV" ) then
			--Add Blizzard Icon, this was sent by a Dev
			icon = "|TInterface\\ChatFrame\\UI-ChatIcon-Blizz:12:20:0:0:32:16:4:28:0:16|t ";
		elseif ( arg6 == "DND" or arg6 == "AFK") then
			icon = GetChatIcon(arg2).._G["CHAT_FLAG_"..arg6]
		else
			icon = _G["CHAT_FLAG_"..arg6];
		end
	else
		icon = GetChatIcon(arg2)
		if(lfgRoles[arg2] and SLE:SimpleTable(lfgChannels, type)) then
			icon = lfgRoles[arg2]..icon
		end
	end
	if icon == "" then icon = nil end
	return icon, true
end

function CH:CheckLFGRoles()
	local isInGroup, isInRaid = IsInGroup(), IsInRaid()
	local unit = isInRaid and "raid" or "party"
	local name, realm
	twipe(lfgRoles)
	if(not isInGroup or not self.db.lfgIcons) then return end

	local role = UnitGroupRolesAssigned("player")
	if(role and role ~= "NONE") then
		local path = SLE.rolePaths[E.db.sle.roleicons][role]
		lfgRoles[PLAYER_NAME] = "|T"..path..":15:15:0:0:64:64:2:56:2:56|t"
	end

	for i=1, GetNumGroupMembers() do
		if(UnitExists(unit..i) and not UnitIsUnit(unit..i, "player")) then
			role = UnitGroupRolesAssigned(unit..i)
			name, realm = UnitName(unit..i)

			if(role and name) then
				name = (realm and realm ~= '') and name..'-'..realm or name ..'-'..PLAYER_REALM;
				lfgRoles[name] = role ~= "NONE" and "|T"..SLE.rolePaths[E.db.sle.roleicons][role]..":15:15:0:0:64:64:2:56:2:56|t" or nil
			end
		end
	end
end

local function GMCheck()
	local name, rank
	if GetNumGuildMembers() == 0 and IsInGuild() then E:Delay(2, GMCheck); return end
	if not IsInGuild() then GuildMaster = ""; GMName = ''; GMRealm = ''; return end
	for i = 1, GetNumGuildMembers() do
		name, _, rank = GetGuildRosterInfo(i)
		if rank == 0 then
			break
		end
	end

	GuildMaster = name
	if GuildMaster then
		GMName, GMRealm = string.split('-', GuildMaster)
	end
	GMRealm = GMRealm or PLAYER_REALM
	GMRealm = GMRealm:gsub(' ', '')
end

local function Roster(event, update)
 if update then GMCheck() end
end

function CH:GMIconUpdate()
	if E.private.chat.enable ~= true then return end
	if E.db.sle.chat.guildmaster then
		self:RegisterEvent('GUILD_ROSTER_UPDATE', Roster)
		GMCheck()
	else
		self:UnregisterEvent('GUILD_ROSTER_UPDATE')
		GuildMaster = ""
		GMName = ''
		GMRealm = ''
	end
end

function CH:filterLine(event, source, msg, ...)
	local isSpam = false
	for _, line in ipairs(CH.spamNextLines) do
		if msg:match(line) then
			local curTime = GetTime()
			for id, meter in ipairs(CH.Meters) do
				local elapsed = curTime - meter.time
				if meter.src == source and meter.evt == event and elapsed < 1 then
					-- found the meter, now check wheter this line is already in there
					local toInsert = true
					for a,b in ipairs(meter.data) do
						if (b == msg) then
							toInsert = false
						end
					end

					if toInsert then
						tinsert(meter.data,msg)
					end
					return true, false, nil
				end
			end
		end
	end

	for i, line in ipairs(CH.spamFirstLines) do
		local newID = 0
		if msg:match(line) then
			local curTime = GetTime();
			if find(msg, "|cff(.+)|r") then
				msg = gsub(msg, "|cff%w%w%w%w%w%w", "")
				msg = gsub(msg, "|r", "")
			end
			for id,meter in ipairs(CH.Meters) do
				local elapsed = curTime - meter.time
				if meter.src == source and meter.evt == event and elapsed < 1 then
					newID = id
					return true, true, string.format("|HSLD:%1$d|h|cFFFFFF00[%2$s]|r|h",newID or 0,msg or "nil")
				end
			end

			local newMeter = {src = source, evt = event, time = curTime, data = {}, title = msg, addon = addonName}
			tinsert(CH.Meters, newMeter)

			for id,meter in ipairs(CH.Meters) do
				if meter.src == source and meter.evt == event and meter.time == curTime then
					newID = id
				end
			end

			return true, true, string.format("|HSLD:%1$d|h|cFFFFFF00[%2$s]|r|h",newID or 0,msg or "nil")
		end
	end
	return false, false, nil
end

function CH:ParseChatEvent(event, msg, sender, ...)
	local hide = false
	for _,allevents in ipairs(CH.ChannelEvents) do
		if event == allevents then
			local isRecount, isFirstLine, newMessage = CH:filterLine(event, sender, msg)
			if isRecount then
				if isFirstLine then
					msg = newMessage
				else
					hide = true
				end
			end
		end
	end


	if not hide then
		return false, msg, sender, ...
	end
	return true
end

function CH:ParseLink(link, text, button, chatframe)
	if E.db.sle.chat.dpsSpam then
		local linktype, id = strsplit(":", link)
		if linktype == "SLD" then
			local meterID = tonumber(id)
			-- put stuff in the ItemRefTooltip from FrameXML
			ShowUIPanel(ItemRefTooltip);
			if ( not ItemRefTooltip:IsShown() ) then
				ItemRefTooltip:SetOwner(UIParent, "ANCHOR_PRESERVE");
			end
			ItemRefTooltip:ClearLines()
			ItemRefTooltip:AddLine(CH.Meters[meterID].title)
			ItemRefTooltip:AddLine(format(L["Reported by %s"],CH.Meters[meterID].src))
			for _,message in ipairs(CH.Meters[meterID].data) do
				ItemRefTooltip:AddLine(message,1,1,1)
			end
			ItemRefTooltip:Show()
		end
	end
end

function CH:SpamFilter()
	if E.db.sle.chat.dpsSpam then
		for _,event in ipairs(CH.ChannelEvents) do
			ChatFrame_AddMessageEventFilter(event, self.ParseChatEvent)
		end

		CH.MeterSpam = true
	else
		if CH.MeterSpam then
			for _,event in ipairs(CH.ChannelEvents) do
				ChatFrame_RemoveMessageEventFilter(event, self.ParseChatEvent)
			end
			CH.MeterSpam = false
		end
	end
end

function CH:Combat(event)
	if E.db.sle.chat.combathide == "NONE" or not E.db.sle.chat.combathide then return end
	if event == "PLAYER_REGEN_DISABLED" then
		if E.db.sle.chat.combathide == "BOTH" or E.db.sle.chat.combathide == "RIGHT" then
			RightChatPanel:Hide()
			RightChatToggleButton:Hide()
		end
		if E.db.sle.chat.combathide == "BOTH" or E.db.sle.chat.combathide == "LEFT" then
			LeftChatPanel:Hide()
			LeftChatToggleButton:Hide()
		end
	elseif event == "PLAYER_REGEN_ENABLED" then
		if not RightChatPanel:IsShown() then
			RightChatPanel:Show()
			RightChatToggleButton:Show()
		end
		if not LeftChatPanel:IsShown() then
			LeftChatPanel:Show()
			LeftChatToggleButton:Show()
		end
	end
end

--Previously layout.lua
local LO = E:GetModule('Layout');
local PANEL_HEIGHT = 22;
local SIDE_BUTTON_WIDTH = 16;
local function ChatPanels()
	if not E.db.sle.datatext.chathandle then return end

	if not E:HasMoverBeenMoved("LeftChatMover") and E.db.datatexts.leftChatPanel then
		if not E.db.movers then E.db.movers = {}; end
		if E.PixelMode then
			SLE:SetMoverPosition("LeftChatMover", "BOTTOMLEFT", UIParent, "BOTTOMLEFT", 0, 19)
		else
			SLE:SetMoverPosition("LeftChatMover", "BOTTOMLEFT", UIParent, "BOTTOMLEFT", 0, 21)
		end
		E:SetMoversPositions()
	end

	if not E:HasMoverBeenMoved("RightChatMover") and E.db.datatexts.rightChatPanel then
		if not E.db.movers then E.db.movers = {}; end
		if E.PixelMode then
			SLE:SetMoverPosition("RightChatMover", "BOTTOMRIGHT", UIParent, "BOTTOMRIGHT", 0, 19)
		else
			SLE:SetMoverPosition("RightChatMover", "BOTTOMRIGHT", UIParent, "BOTTOMRIGHT", 0, 21)
		end
		E:SetMoversPositions()
	end

	if E.db.chat.panelBackdrop == 'SHOWBOTH' then
		LeftChatPanel.backdrop:Show()
		RightChatPanel.backdrop:Show()

		LeftChatDataPanel:Point('BOTTOMLEFT', LeftChatPanel, 'BOTTOMLEFT', SIDE_BUTTON_WIDTH, (E.PixelMode and -19 or -21)) --lower line of datapanel
		LeftChatDataPanel:Point('TOPRIGHT', LeftChatPanel, 'BOTTOMLEFT', 16 + E.db.sle.datatext.chatleft.width, (E.PixelMode and 1 or -1)) --upper line of datapanel
		RightChatDataPanel:Point('BOTTOMLEFT', RightChatPanel, 'BOTTOMRIGHT', - (E.db.sle.datatext.chatright.width + 16), (E.PixelMode and -19 or -21)) --lower-left corner of right datapanel
		RightChatDataPanel:Point('TOPRIGHT', RightChatPanel, 'BOTTOMRIGHT', -SIDE_BUTTON_WIDTH, (E.PixelMode and 1 or -1))	--upper-right corner of right datapanel
		LeftChatToggleButton:Point('BOTTOMLEFT', LeftChatPanel, 'BOTTOMLEFT', 0, (E.PixelMode and -19 or -21))
		RightChatToggleButton:Point('BOTTOMRIGHT', RightChatPanel, 'BOTTOMRIGHT', 0, (E.PixelMode and -19 or -21))
		LO:ToggleChatTabPanels()
	elseif E.db.chat.panelBackdrop == 'HIDEBOTH' then
		LeftChatPanel.backdrop:Hide()
		RightChatPanel.backdrop:Hide()

		LeftChatDataPanel:Point('BOTTOMLEFT', LeftChatPanel, 'BOTTOMLEFT', SIDE_BUTTON_WIDTH, (E.PixelMode and -19 or -21)) --lower line of datapanel
		LeftChatDataPanel:Point('TOPRIGHT', LeftChatPanel, 'BOTTOMLEFT', 16 + E.db.sle.datatext.chatleft.width, (E.PixelMode and 1 or -1)) --upper line of datapanel
		RightChatDataPanel:Point('BOTTOMLEFT', RightChatPanel, 'BOTTOMRIGHT', - (E.db.sle.datatext.chatright.width + 16), (E.PixelMode and -19 or -21)) --lower-left corner of right datapanel
		RightChatDataPanel:Point('TOPRIGHT', RightChatPanel, 'BOTTOMRIGHT', -SIDE_BUTTON_WIDTH, (E.PixelMode and 1 or -1))	--upper-right corner of right datapanel
		LeftChatToggleButton:Point('BOTTOMLEFT', LeftChatPanel, 'BOTTOMLEFT', 0, (E.PixelMode and -19 or -21))
		RightChatToggleButton:Point('BOTTOMRIGHT', RightChatPanel, 'BOTTOMRIGHT', 0, (E.PixelMode and -19 or -21))
		LO:ToggleChatTabPanels(true, true)
	elseif E.db.chat.panelBackdrop == 'LEFT' then
		LeftChatPanel.backdrop:Show()
		RightChatPanel.backdrop:Hide()

		LeftChatDataPanel:Point('BOTTOMLEFT', LeftChatPanel, 'BOTTOMLEFT', SIDE_BUTTON_WIDTH, (E.PixelMode and -19 or -21)) --lower line of datapanel
		LeftChatDataPanel:Point('TOPRIGHT', LeftChatPanel, 'BOTTOMLEFT', 16 + E.db.sle.datatext.chatleft.width, (E.PixelMode and 1 or -1)) --upper line of datapanel
		RightChatDataPanel:Point('BOTTOMLEFT', RightChatPanel, 'BOTTOMRIGHT', - (E.db.sle.datatext.chatright.width + 16), (E.PixelMode and -19 or -21)) --lower-left corner of right datapanel
		RightChatDataPanel:Point('TOPRIGHT', RightChatPanel, 'BOTTOMRIGHT', -SIDE_BUTTON_WIDTH, (E.PixelMode and 1 or -1))	--upper-right corner of right datapanel
		LeftChatToggleButton:Point('BOTTOMLEFT', LeftChatPanel, 'BOTTOMLEFT', 0, (E.PixelMode and -19 or -21))
		RightChatToggleButton:Point('BOTTOMRIGHT', RightChatPanel, 'BOTTOMRIGHT', 0, (E.PixelMode and -19 or -21))
		LO:ToggleChatTabPanels(true)
	else
		LeftChatPanel.backdrop:Hide()
		RightChatPanel.backdrop:Show()

		LeftChatDataPanel:Point('BOTTOMLEFT', LeftChatPanel, 'BOTTOMLEFT', SIDE_BUTTON_WIDTH, (E.PixelMode and -19 or -21)) --lower line of datapanel
		LeftChatDataPanel:Point('TOPRIGHT', LeftChatPanel, 'BOTTOMLEFT', 16 + E.db.sle.datatext.chatleft.width, (E.PixelMode and 1 or -1)) --upper line of datapanel
		RightChatDataPanel:Point('BOTTOMLEFT', RightChatPanel, 'BOTTOMRIGHT', - (E.db.sle.datatext.chatright.width + 16), (E.PixelMode and -19 or -21)) --lower-left corner of right datapanel
		RightChatDataPanel:Point('TOPRIGHT', RightChatPanel, 'BOTTOMRIGHT', -SIDE_BUTTON_WIDTH, (E.PixelMode and 1 or -1))	--upper-right corner of right datapanel
		LeftChatToggleButton:Point('BOTTOMLEFT', LeftChatPanel, 'BOTTOMLEFT', 0, (E.PixelMode and -19 or -21))
		RightChatToggleButton:Point('BOTTOMRIGHT', RightChatPanel, 'BOTTOMRIGHT', 0, (E.PixelMode and -19 or -21))
		LO:ToggleChatTabPanels(nil, true)
	end
end

local function CreateChatPanels()
	--Left Chat Tab
	LeftChatTab:Point('TOPLEFT', LeftChatPanel, 'TOPLEFT', 2, -2)
	LeftChatTab:Point('BOTTOMRIGHT', LeftChatPanel, 'TOPRIGHT', -2, -PANEL_HEIGHT)
	--Preventing left chat datapanel fading
	ChatFrame1EditBox:Hide()
	--Right Chat Tab
	RightChatTab:Point('TOPRIGHT', RightChatPanel, 'TOPRIGHT', -2, -2)
	RightChatTab:Point('BOTTOMLEFT', RightChatPanel, 'TOPLEFT', 2, -PANEL_HEIGHT)
end

local function ChatTextures()
	if not E.db['general'] or not E.private['general'] then return end --Prevent rare nil value errors
	if not E.db.sle.chat or not E.db.sle.chat.textureAlpha or not E.db.sle.chat.textureAlpha.enable then return end --our option enable check

	if LeftChatPanel and LeftChatPanel.tex and RightChatPanel and RightChatPanel.tex then
		local a = E.db.sle.chat.textureAlpha.alpha or 0.5
		LeftChatPanel.tex:SetAlpha(a)
		RightChatPanel.tex:SetAlpha(a)
	end
end

hooksecurefunc(LO, "ToggleChatPanels", ChatPanels)
hooksecurefunc(LO, "CreateChatPanels", CreateChatPanels)
hooksecurefunc(CH, "PositionChat", PositionChat)
hooksecurefunc(CH, "StyleChat", Style)
hooksecurefunc(E, "UpdateMedia", ChatTextures)
hooksecurefunc(CH, "Initialize", function(self)
	if not E.private.chat.enable then return end

	self:RegisterEvent("GROUP_JOINED", function() E:Delay(5, function() CH:CheckLFGRoles() end) end)

	if E.db.sle.chat.guildmaster then
		self:RegisterEvent('GUILD_ROSTER_UPDATE', Roster)
		GMCheck()
	end

	CH:SpamFilter()

	self:SecureHook("SetItemRef","ParseLink")

	-- Borrowed from Deadly Boss Mods
	do
		local old = ItemRefTooltip.SetHyperlink -- we have to hook this function since the default ChatFrame code assumes that all links except for player and channel links are valid arguments for this function
		function ItemRefTooltip:SetHyperlink(link, ...)
			if link:sub(0, 4) == "SLD:" then
				return
			end
			return old(self, link, ...)
		end
	end

	self:RegisterEvent("PLAYER_REGEN_ENABLED", "Combat")
	self:RegisterEvent("PLAYER_REGEN_DISABLED", "Combat")
end)