local Gladius = _G.Gladius
if not Gladius then
	DEFAULT_CHAT_FRAME:AddMessage(format("Module %s requires Gladius", "DRTracker"))
end
local L = Gladius.L
local LSM

local DRData = LibStub("DRData-1.0")

-- global functions
local _G = _G
local pairs = pairs
local strfind = string.find
local unpack = unpack

local CreateFontString = CreateFontString
local CreateFrame = CreateFrame
local GetSpellTexture = GetSpellTexture
local GetTime = GetTime
local UnitGUID = UnitGUID

local DRTracker = Gladius:NewModule("DRTracker", false, true, {
	drTrackerAttachTo = "ClassIcon",
	drTrackerAnchor = "TOPRIGHT",
	drTrackerRelativePoint = "TOPLEFT",
	drTrackerAdjustSize = true,
	drTrackerMargin = 5,
	drTrackerSize = 52,
	drTrackerOffsetX = 0,
	drTrackerOffsetY = -5,
	drTrackerFrameLevel = 1,
	drTrackerGloss = false,
	drTrackerGlossColor = {r = 1, g = 1, b = 1, a = 0.4},
	drTrackerCooldown = false,
	drTrackerCooldownReverse = false,
	drFontSize = 18,
	drFontColor = {r = 0, g = 1, b = 0, a = 1},
	drCategories = { },
})

function DRTracker:OnInitialize()
	-- init frames
	self.frame = { }
end


function DRTracker:OnEnable()
	self:RegisterEvent("COMBAT_LOG_EVENT_UNFILTERED")
	LSM = Gladius.LSM
	if not self.frame then
		self.frame = { }
	end 
end

function DRTracker:OnDisable()
	self:UnregisterAllEvents()
	for _, frame in pairs(self.frame) do
		frame:SetAlpha(0)
	end
end

function DRTracker:OnProfileChanged()
	for unit, _ in pairs(self.frame) do
		self:Reset(unit)
	end
	if Gladius.dbi.profile.modules["DRTracker"] then
		Gladius:EnableModule("DRTracker")
	else
		Gladius:DisableModule("DRTracker")
	end
end

function DRTracker:GetAttachTo()
	return Gladius.db.drTrackerAttachTo
end

function DRTracker:GetFrame(unit)
	return self.frame[unit]
end

function DRTracker:UpdateColors(unit)
	for cat, frame in pairs(self.frame[unit].tracker) do
		local tracked = self.frame[unit].tracker[cat]
		tracked.normalTexture:SetVertexColor(Gladius.db.drTrackerGlossColor.r, Gladius.db.drTrackerGlossColor.g, Gladius.db.drTrackerGlossColor.b, Gladius.db.drTrackerGloss and Gladius.db.drTrackerGlossColor.a or 0)
		tracked.text:SetTextColor(Gladius.db.drFontColor.r, Gladius.db.drFontColor.g, Gladius.db.drFontColor.b, Gladius.db.drFontColor.a)
	end
end

function DRTracker:UpdateIcon(unit, drCat)
	local tracked = self.frame[unit].tracker[drCat]
	tracked:EnableMouse(false)
	tracked.reset = 0
	tracked:SetWidth(self.frame[unit]:GetHeight())
	tracked:SetHeight(self.frame[unit]:GetHeight())
	tracked:SetNormalTexture("Interface\\AddOns\\Gladius\\Images\\Gloss")
	tracked.texture = _G[tracked:GetName().."Icon"]
	tracked.normalTexture = _G[tracked:GetName().."NormalTexture"]

	tracked.cooldown = _G[tracked:GetName().."Cooldown"]
	tracked.cooldown.isDisabled = not Gladius.db.drTrackerCooldown
	tracked.cooldown:SetReverse(Gladius.db.drTrackerCooldownReverse)
	Gladius:Call(Gladius.modules.Timer, "RegisterTimer", tracked, Gladius.db.drTrackerCooldown)

	if not tracked.text then
		tracked.text = tracked:CreateFontString(nil, "OVERLAY")
	end

	tracked.text:SetDrawLayer("OVERLAY")
	tracked.text:SetJustifyH("RIGHT")
	tracked.text:SetPoint("BOTTOMRIGHT", tracked, -2, 0)
	tracked.text:SetFont(LSM:Fetch(LSM.MediaType.FONT, Gladius.db.globalFont), Gladius.db.drFontSize, "OUTLINE")
	tracked.text:SetTextColor(Gladius.db.drFontColor.r, Gladius.db.drFontColor.g, Gladius.db.drFontColor.b, Gladius.db.drFontColor.a)
	-- style action button
	tracked.normalTexture:SetHeight(self.frame[unit]:GetHeight() + self.frame[unit]:GetHeight() * 0.4)
	tracked.normalTexture:SetWidth(self.frame[unit]:GetWidth() + self.frame[unit]:GetWidth() * 0.4)
	tracked.normalTexture:ClearAllPoints()
	tracked.normalTexture:SetPoint("CENTER", 0, 0)
	tracked:SetNormalTexture("Interface\\AddOns\\Gladius\\Images\\Gloss")
	tracked.texture:ClearAllPoints()
	tracked.texture:SetPoint("TOPLEFT", tracked, "TOPLEFT")
	tracked.texture:SetPoint("BOTTOMRIGHT", tracked, "BOTTOMRIGHT")
	tracked.texture:SetTexCoord(0.07, 0.93, 0.07, 0.93)
	tracked.normalTexture:SetVertexColor(Gladius.db.drTrackerGlossColor.r, Gladius.db.drTrackerGlossColor.g, Gladius.db.drTrackerGlossColor.b, Gladius.db.drTrackerGloss and Gladius.db.drTrackerGlossColor.a or 0)
end

function DRTracker:DRFaded(unit, spellID, force)
	local drCat = DRData:GetSpellCategory(spellID)
	if not force and Gladius.db.drCategories[drCat] == false then
		return
	end
	local drTexts = {
		[1] = {"\194\189", 0, 1, 0},
		[0.5] = {"\194\188", 1, 0.65, 0},
		[0.25] = {"%", 1, 0, 0},
		[0] = {"%", 1, 0, 0},
	}
	if not self.frame[unit].tracker[drCat] then
		self.frame[unit].tracker[drCat] = CreateFrame("CheckButton", "Gladius"..self.name.."FrameCat"..drCat..unit, self.frame[unit], "ActionButtonTemplate")
		self:UpdateIcon(unit, drCat)
	end
	local tracked = self.frame[unit].tracker[drCat]
	tracked.active = true
	if tracked and tracked.reset <= GetTime() then
		tracked.diminished = 1
	else
		tracked.diminished = DRData:NextDR(tracked.diminished)
	end
	if Gladius.test and tracked.diminished == 0 then
		tracked.diminished = 1
	end
	tracked.timeLeft = DRData:GetResetTime()
	tracked.reset = tracked.timeLeft + GetTime()
	local text, r, g, b = unpack(drTexts[tracked.diminished])
	tracked.text:SetText(text)
	tracked.text:SetTextColor(r,g,b)
	tracked.texture:SetTexture(GetSpellTexture(spellID))
	Gladius:Call(Gladius.modules.Timer, "SetTimer", tracked, tracked.timeLeft)
	tracked:SetScript("OnUpdate", function(f, elapsed)
		f.timeLeft = f.timeLeft - elapsed
		if f.timeLeft <= 0 then
			f.active = false
			Gladius:Call(Gladius.modules.Timer, "HideTimer", f)
			-- position icons
			self:SortIcons(unit)
			-- reset script
			tracked:SetScript("OnUpdate", nil)
		end
	end)
	tracked:SetAlpha(1)
	self:SortIcons(unit)
end

function DRTracker:SortIcons(unit)
	local lastFrame = self.frame[unit]
	for cat, frame in pairs(self.frame[unit].tracker) do
		frame:ClearAllPoints()
		frame:SetAlpha(0)
		if frame.active then
			frame:SetPoint(Gladius.db.drTrackerAnchor, lastFrame, lastFrame == self.frame[unit] and Gladius.db.drTrackerAnchor or Gladius.db.drTrackerRelativePoint, strfind(Gladius.db.drTrackerAnchor,"LEFT") and Gladius.db.drTrackerMargin or - Gladius.db.drTrackerMargin, 0)
			lastFrame = frame
			frame:SetAlpha(1)
		end
	end
end

function DRTracker:COMBAT_LOG_EVENT_UNFILTERED(event, timestamp, eventType, hideCaster, sourceGUID, sourceName, sourceFlags, sourceRaidFlags, destGUID, destName, destFlags, destRaidFlags, spellID, spellName, spellSchool, auraType)
	local unit
	for u, _ in pairs(Gladius.buttons) do
		if UnitGUID(u) == destGUID then
			unit = u
		end
	end
	if not unit then
		return
	end
	-- Enemy had a debuff refreshed before it faded, so fade + gain it quickly
	if eventType == "SPELL_AURA_REFRESH" then
		if auraType == "DEBUFF" and DRData:GetSpellCategory(spellID) then
			self:DRFaded(unit, spellID)
		end
	-- Buff or debuff faded from an enemy
	elseif eventType == "SPELL_AURA_REMOVED" then
		if auraType == "DEBUFF" and DRData:GetSpellCategory(spellID) then
			self:DRFaded(unit, spellID)
		end
	end
end

function DRTracker:CreateFrame(unit)
	local button = Gladius.buttons[unit]
	if not button then
		return
	end
	-- create frame
	self.frame[unit] = CreateFrame("Frame", "Gladius"..self.name.."Frame"..unit, button, "ActionButtonTemplate")
end

function DRTracker:Update(unit)
	-- create frame
	if not self.frame[unit] then
		self:CreateFrame(unit)
	end
	-- update frame
	self.frame[unit]:ClearAllPoints()
	-- anchor point 
	local parent = Gladius:GetParent(unit, Gladius.db.drTrackerAttachTo)
	self.frame[unit]:SetPoint(Gladius.db.drTrackerAnchor, parent, Gladius.db.drTrackerRelativePoint, Gladius.db.drTrackerOffsetX, Gladius.db.drTrackerOffsetY)
	-- frame level
	self.frame[unit]:SetFrameLevel(Gladius.db.drTrackerFrameLevel)
	-- when the attached module is disabled
	if not Gladius:GetModule(self:GetAttachTo()) then
		Gladius.db.drTrackerAttachTo = "Frame"
	end
	if Gladius.db.drTrackerAdjustSize then
		if self:GetAttachTo() == "Frame" then
			local height = false
			-- need to rethink that
			--[[for _, module in pairs(Gladius.modules) do
				if module:GetAttachTo() == self.name then
					height = false
				end
			end]]
			if height then
				self.frame[unit]:SetWidth(Gladius.buttons[unit].height)
				self.frame[unit]:SetHeight(Gladius.buttons[unit].height)
			else
				self.frame[unit]:SetWidth(Gladius.buttons[unit].frameHeight)
				self.frame[unit]:SetHeight(Gladius.buttons[unit].frameHeight)
			end
		else
			self.frame[unit]:SetWidth(Gladius:GetModule(self:GetAttachTo()).frame[unit]:GetHeight() or 1)
			self.frame[unit]:SetHeight(Gladius:GetModule(self:GetAttachTo()).frame[unit]:GetHeight() or 1)
		end
	else
		self.frame[unit]:SetWidth(Gladius.db.drTrackerSize)
		self.frame[unit]:SetHeight(Gladius.db.drTrackerSize)
	end
	-- update icons
	if not self.frame[unit].tracker then
		self.frame[unit].tracker = { }
	else
		for cat, frame in pairs(self.frame[unit].tracker) do
			frame:SetWidth(self.frame[unit]:GetHeight())
			frame:SetHeight(self.frame[unit]:GetHeight())
			frame.normalTexture:SetHeight(self.frame[unit]:GetHeight() + self.frame[unit]:GetHeight() * 0.4)
			frame.normalTexture:SetWidth(self.frame[unit]:GetWidth() + self.frame[unit]:GetWidth() * 0.4)
			self:UpdateIcon(unit, cat)
		end
		self:SortIcons(unit)
	end
	-- hide
	self.frame[unit]:SetAlpha(0)
end

function DRTracker:Show(unit)
	-- show frame
	self.frame[unit]:SetAlpha(1)
end

function DRTracker:Reset(unit)
	if not self.frame[unit] then
		return
	end
	-- hide icons
	for _, frame in pairs(self.frame[unit].tracker) do
		frame.active = false
		frame.diminished = 1
		Gladius:Call(Gladius.modules.Timer, "HideTimer", frame)
		frame:SetScript("OnUpdate", nil)
		frame:SetAlpha(0)
	end
	-- hide
	self.frame[unit]:SetAlpha(0)
end

function DRTracker:Test(unit)
	self:DRFaded(unit, 33786, true)
	self:DRFaded(unit, 8122, true)
	self:DRFaded(unit, 118, true)
end

function DRTracker:GetOptions()
	local t = {
		general = {
			type = "group",
			name = L["General"],
			order = 1,
			args = {
				widget = {
					type = "group",
					name = L["Widget"],
					desc = L["Widget settings"],
					inline = true,
					order = 1,
					args = {
						drTrackerMargin = {
							type = "range",
							name = L["DRTracker Space"],
							desc = L["Space between the icons"],
							min = 0,
							max = 100,
							step = 1,
							disabled = function()
								return not Gladius.dbi.profile.modules[self.name]
							end,
							order = 5,
						},
						sep = {
							type = "description",
							name = "",
							width = "full",
							order = 7,
						},
						drTrackerCooldown = {
							type = "toggle",
							name = L["DRTracker Cooldown Spiral"],
							desc = L["Display the cooldown spiral for important auras"],
							disabled = function()
								return not Gladius.dbi.profile.modules[self.name]
							end,
							hidden = function()
								return not Gladius.db.advancedOptions
							end,
							order = 10,
						},
						drTrackerCooldownReverse = {
							type = "toggle",
							name = L["DRTracker Cooldown Reverse"],
							desc = L["Invert the dark/bright part of the cooldown spiral"],
							disabled = function()
								return not Gladius.dbi.profile.modules[self.name]
							end,
							hidden = function()
								return not Gladius.db.advancedOptions
							end,
							order = 15,
						},
						sep2 = {
							type = "description",
							name = "",
							width = "full",
							order = 17,
						},
						drTrackerGloss = {
							type = "toggle",
							name = L["DRTracker Gloss"],
							desc = L["Toggle gloss on the drTracker icon"],
							disabled = function()
								return not Gladius.dbi.profile.modules[self.name]
							end,
							hidden = function()
								return not Gladius.db.advancedOptions
							end,
							order = 25,
						},
						drTrackerGlossColor = {
							type = "color",
							name = L["DRTracker Gloss Color"],
							desc = L["Color of the drTracker icon gloss"],
							get = function(info)
								return Gladius:GetColorOption(info)
							end,
							set = function(info, r, g, b, a)
								return Gladius:SetColorOption(info, r, g, b, a)
							end,
							hasAlpha = true,
							disabled = function()
								return not Gladius.dbi.profile.modules[self.name]
							end,
							hidden = function()
								return not Gladius.db.advancedOptions
							end,
							order = 30,
						},
						sep3 = {
							type = "description",
							name = "",
							width = "full",
							hidden = function()
								return not Gladius.db.advancedOptions
							end,
							order = 33,
						},
						drTrackerFrameLevel = {
							type = "range",
							name = L["DRTracker Frame Level"],
							desc = L["Frame level of the drTracker"],
							disabled = function()
								return not Gladius.dbi.profile.modules[self.name]
							end,
							hidden = function()
								return not Gladius.db.advancedOptions
							end,
							min = 1,
							max = 5,
							step = 1,
							width = "double",
							order = 35,
						},
					},
				},
				size = {
					type = "group",
					name = L["Size"],
					desc = L["Size settings"],
					inline = true,
					order = 2,
					args = {
						drTrackerAdjustSize = {
							type = "toggle",
							name = L["DRTracker Adjust Size"],
							desc = L["Adjust drTracker size to the frame size"],
							disabled = function()
								return not Gladius.dbi.profile.modules[self.name]
							end,
							order = 5,
						},
						drTrackerSize = {
							type = "range",
							name = L["DRTracker Size"],
							desc = L["Size of the drTracker"],
							min = 10,
							max = 100,
							step = 1,
							disabled = function()
								return Gladius.dbi.profile.drTrackerAdjustSize or not Gladius.dbi.profile.modules[self.name]
							end,
							order = 10,
						},
					},
				},
				font = {
					type = "group",
					name = L["Font"],
					desc = L["Font settings"],
					inline = true,
					hidden = function()
						return not Gladius.db.advancedOptions
					end,
					order = 3,
					args = {
						--[[drFontColor = {
							type = "color",
							name = L["DR Text Color"],
							desc = L["Text color of the DR text"],
							hasAlpha = true,
							get = function(info)
								return Gladius:GetColorOption(info)
							end,
							set = function(info, r, g, b, a)
								return Gladius:SetColorOption(info, r, g, b, a)
							end,
							disabled = function()
								return not Gladius.dbi.profile.castText or not Gladius.dbi.profile.modules[self.name]
							end,
							order = 10,
						},]]
						drFontSize = {
							type = "range",
							name = L["DR Text Size"],
							desc = L["Text size of the DR text"],
							min = 1,
							max = 20,
							step = 1,
							disabled = function()
								return not Gladius.dbi.profile.castText or not Gladius.dbi.profile.modules[self.name]
							end,
							order = 15,
						},
					},
				},
				position = {
					type = "group",
					name = L["Position"],
					desc = L["Position settings"],
					inline = true,
					order = 4,
					args = {
						drTrackerAttachTo = {
							type = "select",
							name = L["DRTracker Attach To"],
							desc = L["Attach drTracker to the given frame"],
							values = function()
								return Gladius:GetModules(self.name)
							end,
							disabled = function()
								return not Gladius.dbi.profile.modules[self.name]
							end,
							order = 5,
						},
						drTrackerPosition = {
							type = "select",
							name = L["DRTracker Position"],
							desc = L["Position of the class icon"],
							values={["LEFT"] = L["Left"], ["RIGHT"] = L["Right"]},
							get = function()
								return strfind(Gladius.db.drTrackerAnchor, "RIGHT") and "LEFT" or "RIGHT"
							end,
							set = function(info, value)
								if (value == "LEFT") then
									Gladius.db.drTrackerAnchor = "TOPRIGHT"
									Gladius.db.drTrackerRelativePoint = "TOPLEFT"
								else
									Gladius.db.drTrackerAnchor = "TOPLEFT"
									Gladius.db.drTrackerRelativePoint = "TOPRIGHT"
								end
								Gladius:UpdateFrame(info[1])
							end,
							disabled = function()
								return not Gladius.dbi.profile.modules[self.name]
							end,
							hidden = function()
								return Gladius.db.advancedOptions
							end,
							order = 6,
						},
						sep = {
							type = "description",
							name = "",
							width = "full",
							order = 7,
						},
						drTrackerAnchor = {
							type = "select",
							name = L["DRTracker Anchor"],
							desc = L["Anchor of the drTracker"],
							values = function()
								return Gladius:GetPositions()
							end,
							disabled = function()
								return not Gladius.dbi.profile.modules[self.name]
							end,
							hidden = function()
								return not Gladius.db.advancedOptions
							end,
							order = 10,
						},
						drTrackerRelativePoint = {
							type = "select",
							name = L["DRTracker Relative Point"],
							desc = L["Relative point of the drTracker"],
							values = function()
								return Gladius:GetPositions()
							end,
							disabled = function()
								return not Gladius.dbi.profile.modules[self.name]
							end,
							hidden = function()
								return not Gladius.db.advancedOptions
							end,
							order = 15,
						},
						sep2 = {
							type = "description",
							name = "",
							width = "full",
							order = 17,
						},
						drTrackerOffsetX = {
							type = "range",
							name = L["DRTracker Offset X"],
							desc = L["X offset of the drTracker"],
							min = - 100,
							max = 100,
							step = 1,
							disabled = function()
								return not Gladius.dbi.profile.modules[self.name]
							end,
							order = 20,
						},
						drTrackerOffsetY = {
							type = "range",
							name = L["DRTracker Offset Y"],
							desc = L["Y offset of the drTracker"],
							disabled = function()
								return not Gladius.dbi.profile.modules[self.name]
							end,
							min = - 50,
							max = 50,
							step = 1,
							order = 25,
						},
					},
				},
			},
		},
	}
	t.categories = {
		type = "group",
		name = L["Categories"],
		order = 2,
		args = {
			categories = {
				type = "group",
				name = L["Categories"],
				desc = L["Category settings"],
				inline = true,
				order = 1,
				args = { },
			},
		},
	}
	local index = 1
	for key, name in pairs(DRData.categoryNames) do
		t.categories.args.categories.args[key] = {
			type = "toggle",
			name = name,
			get = function(info)
				if Gladius.dbi.profile.drCategories[info[#info]] == nil then
					return true
				else
					return Gladius.dbi.profile.drCategories[info[#info]]
				end
			end,
			set = function(info, value)
				Gladius.dbi.profile.drCategories[info[#info]] = value
				if not value then
					for unit, _ in pairs(self.frame) do
						self:Reset(unit)
					end
				end
				Gladius:UpdateFrame()
			end,
			disabled = function()
				return not Gladius.dbi.profile.modules[self.name]
			end,
			order = index * 5,
		}
		index = index + 1
	end
	return t
end