local Amr = LibStub("AceAddon-3.0"):GetAddon("AskMrRobot")
local L = LibStub("AceLocale-3.0"):GetLocale("AskMrRobot", true)
local AceGUI = LibStub("AceGUI-3.0")

local _btnToggle = nil
local _panelUndoWipe = nil
local _chkAutoAll = nil
local _autoChecks = nil

local function createDifficultyCheckBox(instanceId, difficultyId)
	local chk = AceGUI:Create("AmrUiCheckBox")
	chk:SetText(L.DifficultyNames[difficultyId])
	chk:SetCallback("OnClick", function(widget)
		Amr:ToggleAutoLog(instanceId, difficultyId)
	end)
	
	_autoChecks[instanceId][difficultyId] = chk
	return chk
end

-- render a group of controls for auto-logging of a raid zone
local function renderAutoLogSection(instanceId, container)
	_autoChecks[instanceId] = {}
	
	local lbl = AceGUI:Create("AmrUiLabel")
	lbl:SetWidth(200)
	lbl:SetText(L.InstanceNames[instanceId])
	lbl:SetFont(Amr.CreateFont("Regular", 20, Amr.Colors.White))
	container:AddChild(lbl)
	
	local line = AceGUI:Create("AmrUiPanel")
	line:SetHeight(1)
	line:SetBackgroundColor(Amr.Colors.White)
	line:SetPoint("TOPLEFT", lbl.frame, "BOTTOMLEFT", 1, -7)
	line:SetPoint("TOPRIGHT", lbl.frame, "BOTTOMRIGHT", 0, -7)
	container:AddChild(line)
	
	local chkMythic = createDifficultyCheckBox(instanceId, Amr.Difficulties.Mythic)
	chkMythic:SetPoint("TOPLEFT", line.frame, "BOTTOMLEFT", 0, -8)
	container:AddChild(chkMythic)
	
	local chkNormal = createDifficultyCheckBox(instanceId, Amr.Difficulties.Normal)
	chkNormal:SetPoint("TOPLEFT", line.frame, "BOTTOMLEFT", 0, -30)
	container:AddChild(chkNormal)
	
	-- find the widest of mythic/normal
	local w = math.max(chkMythic:GetWidth(), chkNormal:GetWidth())
	
	local chkHeroic = createDifficultyCheckBox(instanceId, Amr.Difficulties.Heroic)
	chkHeroic:SetPoint("TOPLEFT", line.frame, "BOTTOMLEFT", w + 20, -8)
	container:AddChild(chkHeroic)
	
	local chkLfr = createDifficultyCheckBox(instanceId, Amr.Difficulties.Lfr)
	chkLfr:SetPoint("TOPLEFT", line.frame, "BOTTOMLEFT", w + 20, -30)
	container:AddChild(chkLfr)
	
	return lbl, chkNormal
end

-- renders the main UI for the Combat Log tab
function Amr:RenderTabLog(container)

	-- main commands
	_btnToggle = AceGUI:Create("AmrUiButton")
	_btnToggle:SetText(L.LogButtonStartText)
	_btnToggle:SetBackgroundColor(Amr.Colors.Green)
	_btnToggle:SetFont(Amr.CreateFont("Bold", 16, Amr.Colors.White))
	_btnToggle:SetWidth(200)
	_btnToggle:SetHeight(26)
	_btnToggle:SetPoint("TOPLEFT", container.content, "TOPLEFT", 0, -40)
	_btnToggle:SetCallback("OnClick", function() Amr:ToggleLogging() end)
	container:AddChild(_btnToggle)
	
	_lblLogging = AceGUI:Create("AmrUiLabel")
	_lblLogging:SetText(L.LogNote)
	_lblLogging:SetWidth(200)	
	_lblLogging:SetFont(Amr.CreateFont("Italic", 14, Amr.Colors.BrightGreen))
	_lblLogging:SetJustifyH("MIDDLE")
	_lblLogging:SetPoint("TOP", _btnToggle.frame, "BOTTOM", 0, -5)
	container:AddChild(_lblLogging)
	
	local btnReload = AceGUI:Create("AmrUiButton")
	btnReload:SetText(L.LogButtonReloadText)
	btnReload:SetBackgroundColor(Amr.Colors.Blue)
	btnReload:SetFont(Amr.CreateFont("Bold", 16, Amr.Colors.White))
	btnReload:SetWidth(200)
	btnReload:SetHeight(26)
	btnReload:SetPoint("TOPLEFT", _btnToggle.frame, "TOPRIGHT", 40, 0)
	btnReload:SetCallback("OnClick", ReloadUI)
	container:AddChild(btnReload)
	
	local lbl = AceGUI:Create("AmrUiLabel")
	lbl:SetText(L.LogReloadNote)
	lbl:SetWidth(200)	
	lbl:SetFont(Amr.CreateFont("Italic", 14, Amr.Colors.TextTan))
	lbl:SetJustifyH("MIDDLE")
	lbl:SetPoint("TOP", btnReload.frame, "BOTTOM", 0, -5)
	container:AddChild(lbl)
	
	-- container for undo wipe so we can hide/show it all
	_panelUndoWipe = AceGUI:Create("AmrUiPanel")
	_panelUndoWipe:SetLayout("None")
	_panelUndoWipe:SetBackgroundColor(Amr.Colors.Black, 0)
	_panelUndoWipe:SetPoint("TOPLEFT", lbl.frame, "BOTTOMLEFT", 0, -40)
	container:AddChild(_panelUndoWipe)
	
	local btnUndoWipe = AceGUI:Create("AmrUiButton")
	btnUndoWipe:SetText(L.LogButtonUndoWipeText)
	btnUndoWipe:SetBackgroundColor(Amr.Colors.Orange)
	btnUndoWipe:SetFont(Amr.CreateFont("Bold", 16, Amr.Colors.White))
	btnUndoWipe:SetWidth(200)
	btnUndoWipe:SetHeight(26)
	btnUndoWipe:SetPoint("TOPLEFT", lbl.frame, "BOTTOMLEFT", 0, -40)
	btnUndoWipe:SetCallback("OnClick", function() Amr:UndoWipe() end)
	_panelUndoWipe:AddChild(btnUndoWipe)
	
	lbl = AceGUI:Create("AmrUiLabel")
	lbl:SetText(L.LogUndoWipeNote)
	lbl:SetWidth(200)	
	lbl:SetFont(Amr.CreateFont("Italic", 14, Amr.Colors.TextTan))
	lbl:SetJustifyH("MIDDLE")
	lbl:SetPoint("TOP", btnUndoWipe.frame, "BOTTOM", 0, -5)
	_panelUndoWipe:AddChild(lbl)
	
	local lbl2 = AceGUI:Create("AmrUiLabel")
	lbl2:SetText(L.LogUndoWipeDate(date("%B %d", time()), date("%I:%M %p", time())))
	lbl2:SetWidth(200)	
	lbl2:SetFont(Amr.CreateFont("Italic", 14, Amr.Colors.TextTan))
	lbl2:SetJustifyH("MIDDLE")
	lbl2:SetPoint("TOP", lbl.frame, "BOTTOM", 0, -2)
	_panelUndoWipe:AddChild(lbl2)
	
	local btnWipe = AceGUI:Create("AmrUiButton")
	btnWipe:SetText(L.LogButtonWipeText)
	btnWipe:SetBackgroundColor(Amr.Colors.Orange)
	btnWipe:SetFont(Amr.CreateFont("Bold", 16, Amr.Colors.White))
	btnWipe:SetWidth(200)
	btnWipe:SetHeight(26)
	btnWipe:SetPoint("TOPRIGHT", btnUndoWipe.frame, "TOPLEFT", -40, 0)
	btnWipe:SetCallback("OnClick", function() Amr:Wipe() end)
	container:AddChild(btnWipe)

	lbl = AceGUI:Create("AmrUiLabel")
	lbl:SetText(L.LogWipeNote)
	lbl:SetWidth(200)	
	lbl:SetFont(Amr.CreateFont("Italic", 14, Amr.Colors.TextTan))
	lbl:SetJustifyH("MIDDLE")
	lbl:SetPoint("TOP", btnWipe.frame, "BOTTOM", 0, -5)
	container:AddChild(lbl)
	
	lbl2 = AceGUI:Create("AmrUiLabel")
	lbl2:SetText(L.LogWipeNote2("/amr wipe"))
	lbl2:SetWidth(200)	
	lbl2:SetFont(Amr.CreateFont("Italic", 14, Amr.Colors.TextTan))
	lbl2:SetJustifyH("MIDDLE")
	lbl2:SetPoint("TOP", lbl.frame, "BOTTOM", 0, -2)
	container:AddChild(lbl2)
	
	-- auto-logging controls
	lbl = AceGUI:Create("AmrUiLabel")
	lbl:SetWidth(600)
	lbl:SetText(L.LogAutoTitle)
	lbl:SetFont(Amr.CreateFont("Bold", 24, Amr.Colors.TextHeaderActive))
	lbl:SetPoint("TOPLEFT", lbl2.frame, "BOTTOMLEFT", 0, -40)
	container:AddChild(lbl)
	
	_chkAutoAll = AceGUI:Create("AmrUiCheckBox")
	_chkAutoAll:SetText(L.LogAutoAllText)
	_chkAutoAll:SetPoint("TOPLEFT", lbl.frame, "BOTTOMLEFT", 1, -15)
	_chkAutoAll:SetCallback("OnClick", function(widget) Amr:ToggleAllAutoLog() end)
	container:AddChild(_chkAutoAll)
	
	_autoChecks = {}
	
	-- go through all supported instances, rendering in a left->right pattern, 2 per row
	local autoLbls = {}
	local autoChks = {}
	for i, instanceId in ipairs(Amr.InstanceIdsOrdered) do
		local autoLbl, autoChk = renderAutoLogSection(instanceId, container)
		if i == 1 then
			autoLbl:SetPoint("TOPLEFT", _chkAutoAll.frame, "BOTTOMLEFT", -1, -15)
		elseif i % 2 == 0 then
			autoLbl:SetPoint("TOPLEFT", autoLbls[i - 1].frame, "TOPRIGHT", 40, 0)
		else
			autoLbl:SetPoint("TOPLEFT", autoChks[i - 2].frame, "BOTTOMLEFT", 0, -30)
		end
		
		table.insert(autoLbls, autoLbl)
		table.insert(autoChks, autoChk)
	end
	autoSections = nil
	
	-- instructions
	lbl = AceGUI:Create("AmrUiLabel")
	lbl:SetText(L.LogInstructionsTitle)
	lbl:SetWidth(480)	
	lbl:SetFont(Amr.CreateFont("Italic", 24, Amr.Colors.Text))
	lbl:SetPoint("TOPRIGHT", container.content, "TOPRIGHT", 0, -40)
	container:AddChild(lbl)
	
	lbl2 = AceGUI:Create("AmrUiLabel")
	lbl2:SetText(L.LogInstructions)
	lbl2:SetWidth(480)	
	lbl2:SetFont(Amr.CreateFont("Italic", 14, Amr.Colors.Text))
	lbl2:SetPoint("TOPLEFT", lbl.frame, "BOTTOMLEFT", 0, -10)
	container:AddChild(lbl2)
	
	-- initialize state of controls
	Amr:RefreshLogUi()
end

function Amr:ReleaseTabLog()
	_btnToggle = nil
	_panelUndoWipe = nil
	_chkAutoAll = nil
	_autoChecks = nil
end

local function isAllAutoLoggingEnabled()
	-- see if all auto-logging options are enabled
	local allChecked = true
	for i, instanceId in ipairs(Amr.InstanceIdsOrdered) do
		for k, difficultyId in pairs(Amr.Difficulties) do
			if not Amr.db.profile.Logging.Auto[instanceId][difficultyId] then
				allChecked = false
				break
			end
		end
		if not allChecked then break end
	end
	
	return allChecked
end

-- check current zone and auto-logging settings, and enable logging if appropriate
local function updateAutoLogging(force)
	
	-- get the info about the instance
	local zone, _, difficultyId, _, _, _, _, instanceId = GetInstanceInfo()

	if not force and zone == Amr.db.char.Logging.LastZone and difficultyId == Amr.db.char.Logging.LastDiff then
	  -- do nothing if the zone hasn't actually changed, otherwise we may override the user's manual enable/disable
		return
	end

	Amr.db.char.Logging.LastZone = zone
	Amr.db.char.Logging.LastDiff = difficultyId

	if Amr.IsSupportedInstanceId(instanceId) and Amr.db.profile.Logging.Auto[tonumber(instanceId)][tonumber(difficultyId)] then
		-- we are in a supported zone that we want to auto-log, turn logging on 
		-- (supported check is probably redundant, but just in case someone has old settings lying around)
		if not Amr:IsLogging() then
			Amr:StartLogging()
		end
	else
		-- not in a zone that we want to auto-log, turn logging off
		if Amr:IsLogging() then
			Amr:StopLogging()
		end
	end
end

-- refresh the state of the tab based on current settings
function Amr:RefreshLogUi()
	if not _btnToggle then return end
	
	-- set state of logging button based on whether it is on or off
	if self:IsLogging() then
		_btnToggle:SetBackgroundColor(Amr.Colors.Red)
		_btnToggle:SetText(L.LogButtonStopText)
	else
		_btnToggle:SetBackgroundColor(Amr.Colors.Green)
		_btnToggle:SetText(L.LogButtonStartText)
	end
	
	_lblLogging:SetVisible(self:IsLogging())
	
	-- hide/show undo wipe button based on whether a wipe has been called recently
	_panelUndoWipe:SetVisible(Amr.db.char.Logging.LastWipe and true or false)
	
	local all = isAllAutoLoggingEnabled()
	_chkAutoAll:SetChecked(all)
	
	for i, instanceId in ipairs(Amr.InstanceIdsOrdered) do
		for k, difficultyId in pairs(Amr.Difficulties) do
			_autoChecks[instanceId][difficultyId]:SetChecked(Amr.db.profile.Logging.Auto[instanceId][difficultyId])
		end
	end
end

function Amr:IsLogging()
	return Amr.db.char.Logging.Enabled
end

function Amr:ToggleLogging()
	if not Amr.db.char.Logging.Enabled then
		Amr:StartLogging()
	else
		Amr:StopLogging()
	end
end

function Amr:StartLogging()

	local now = time()
	local oldDuration = 60 * 60 * 24 * 10
	
	-- prune out entries in log data that are more than 10 days old

	-- player data
	local playerData = Amr.db.global.Logging.PlayerData
	if playerData then
		for name, timeList in pairs(playerData) do
			for timestamp, dataString in pairs(timeList) do
				if difftime(now, tonumber(timestamp)) > oldDuration then
					timeList[timestamp] = nil
				end
			end
			
			if next(timeList) == nil then
				playerData[name] = nil
			end
		end
	end
	
	-- same idea with extra info (auras, pets, whatever we end up adding to it)
	local extraData = Amr.db.global.Logging.PlayerExtras
	if extraData then
		for name, timeList in pairs(extraData) do
			for timestamp, dataString in pairs(timeList) do
				if difftime(now, tonumber(timestamp)) > oldDuration then
					timeList[timestamp] = nil
				end
			end
			
			if next(timeList) == nil then
				extraData[name] = nil
			end
		end
	end

	-- delete wipes that are more than 10 days old
	if Amr.db.global.Logging.Wipes then
		local wipes = Amr.db.global.Logging.Wipes
		local i = 1
		while i <= #wipes do
			local t = wipes[i]
			if difftime(now, t) > oldDuration then
		        table.remove(wipes, i)
		    else
		        i = i + 1
		    end
		end
	end

	-- delete the last wipe date if it is more than 10 days old
	if Amr.db.char.Logging.LastWipe and difftime(now, Amr.db.char.Logging.LastWipe) > oldDuration then
		Amr.db.char.Logging.LastWipe = nil
	end

	-- always enable advanced combat logging via our addon, gathers more detailed data for better analysis
	SetCVar("advancedCombatLogging", 1)
	LoggingCombat(true)
	Amr.db.char.Logging.Enabled = true
	
	self:Print(L.LogChatStart)
	
	self:UpdateMinimap()
	self:RefreshLogUi()
end

function Amr:StopLogging()
	
	LoggingCombat(false)
	Amr.db.char.Logging.Enabled = false
	
	self:Print(L.LogChatStop)
	
	self:UpdateMinimap()
	self:RefreshLogUi()
end

function Amr:Wipe()
	local t = time()
	table.insert(Amr.db.global.Logging.Wipes, t)
	Amr.db.char.Logging.LastWipe = t

	self:Print(L.LogChatWipe(date('%I:%M %p', t)))

	self:RefreshLogUi()
end

function Amr:UndoWipe()

	local t = Amr.db.char.Logging.LastWipe
	local wipes = Amr.db.global.Logging.Wipes
	
	if not t then
		self:Print(L.LogChatNoWipes)
	else
		-- find this wipe and remove it, may not be the last one if this person is raiding on multiple characters
		for i = #wipes, 1, -1 do
			if wipes[i] == t then
				table.remove(wipes, i)
				break
			end			
		end
		
		Amr.db.char.Logging.LastWipe = nil
		self:Print(L.LogChatUndoWipe(date('%I:%M %p', t)))
	end
	
	self:RefreshLogUi()
end

function Amr:ToggleAutoLog(instanceId, difficultyId)

	local byDiff = Amr.db.profile.Logging.Auto[instanceId]	
	byDiff[difficultyId] = not byDiff[difficultyId]
	
	self:RefreshLogUi()
	
	-- see if we should turn logging on right now	
	updateAutoLogging(true)
end

function Amr:ToggleAllAutoLog()
	
	local val = not isAllAutoLoggingEnabled()
	
	for i, instanceId in ipairs(Amr.InstanceIdsOrdered) do
		for k, difficultyId in pairs(Amr.Difficulties) do
			Amr.db.profile.Logging.Auto[instanceId][difficultyId] = val
		end
	end
	
	self:RefreshLogUi()
	
	-- see if we should turn logging on right now	
	updateAutoLogging(true)
end

function Amr:ProcessPlayerSnapshot(msg)
	if not self:IsLogging() then return end
	
    -- message will be of format: timestamp\nregion\nrealm\nname\n[stuff]
    local parts = {}
	for part in string.gmatch(msg, "([^\n]+)") do
		table.insert(parts, part)
	end
    
    local timestamp = tonumber(parts[1])
    local name = parts[2] .. ":" .. parts[3] .. ":" .. parts[4]
    local setup = parts[5]

	-- initialize the player's table
	local playerList = Amr.db.global.Logging.PlayerData[name]
	if not playerList then
		playerList = {}
		Amr.db.global.Logging.PlayerData[name] = playerList
	end

	-- find the most recent setup already recorded for this player
	local previousSetup = nil
	local previousTime = 0
	for t, v in pairs(playerList) do
		if t > previousTime then
			previousSetup = v
			previousTime = t
		end
	end
	
	-- if the previous setup is more than 12 hours old, don't consider it
	if previousSetup and difftime(timestamp, previousTime) > 60 * 60 * 12 then
		previousSetup = nil
	end
	
	-- we only need to keep this setup if it is different than the previous
	if setup ~= previousSetup then
		playerList[timestamp] = setup
	end
	
end

-- read auras and pet mapping info (pet may not be necessary anymore... but doesn't hurt)
local function getPlayerExtraData(data, unitId, petId)

	local guid = UnitGUID(unitId)
	if guid == nil then return end
	
	local fields = {}

	local buffs = {}
    for i=1,40 do
    	local _,_,_,count,_,_,_,_,_,_,spellId = UnitAura(unitId, i, "HELPFUL")
    	table.insert(buffs, spellId)
    end
	if not buffs or #buffs == 0 then
		table.insert(fields, "_")
	else
		table.insert(fields, Amr.Serializer:ToCompressedNumberList(buffs))
	end

	local petGuid = UnitGUID(petId)
	if petGuid then
		table.insert(fields, guid .. "," .. petGuid)
    else
		table.insert(fields, '_')
	end

	local name = GetUnitName(unitId, true) -- GetRaidRosterInfo(rosterIndex)
    local realm = GetRealmName()
    local region = Amr.RegionNames[GetCurrentRegion()]
    local splitPos = string.find(name, "-")
    if splitPos ~= nil then
        realm = string.sub(name, splitPos + 1)
        name = string.sub(name, 1, splitPos - 1)
    end

	data[region .. ":" .. realm .. ":" .. name] = table.concat(fields, ";")
end

local function logPlayerExtraData()
	if not Amr:IsLogging() or not Amr:IsSupportedInstance() then return end

	local timestamp = time()
    local units = {}
    local petUnits = {}
    
    if IsInRaid() then
        for i = 1,40 do
            table.insert(units, "raid" .. i)
            table.insert(petUnits, "raidpet" .. i)
        end
    elseif IsInGroup() then
        table.insert(units, "player")
        table.insert(petUnits, "pet")
        for i = 1,4 do
            table.insert(units, "party" .. i)
            table.insert(petUnits, "partypet" .. i)
        end
    else
        return
    end

	local data = {}
    for i = 1,#units do
        getPlayerExtraData(data, units[i], petUnits[i])
    end
    
	for name, val in pairs(data) do
		-- record aura stuff, we never check for duplicates, need to know it at each point in time
		if Amr.db.global.Logging.PlayerExtras[name] == nil then
			Amr.db.global.Logging.PlayerExtras[name] = {}
		end
		Amr.db.global.Logging.PlayerExtras[name][timestamp] = val
	end
end

function Amr:InitializeCombatLog()
	updateAutoLogging()
end

Amr:AddEventHandler("UPDATE_INSTANCE_INFO", updateAutoLogging)
Amr:AddEventHandler("PLAYER_DIFFICULTY_CHANGED", updateAutoLogging)
Amr:AddEventHandler("ENCOUNTER_START", updateAutoLogging)
Amr:AddEventHandler("PLAYER_REGEN_DISABLED", logPlayerExtraData)