-------------------------------------------------------------------------------
-- Plugin Prototype
-- @module PluginPrototype
-- @alias plugin

local plugin = {}
local core

local scheduledEvents = {}

do
	local _, tbl =...
	core = tbl.core
	tbl.pluginPrototype = plugin
end

function plugin:Initialize()
	core:RegisterPlugin(self)
end

--- Module enabled check.
-- A module is either enabled or disabled.
-- @return true or nil
function plugin:IsEnabled()
	return self.enabled
end

function plugin:Enable()
	if not self.enabled then
		self.enabled = true
		scheduledEvents[self] = {}

		if type(self.OnPluginEnable) == "function" then
			self:OnPluginEnable()
		end
	end
end

function plugin:Disable()
	if self.enabled then
		self.enabled = nil

		if type(self.OnPluginDisable) == "function" then
			self:OnPluginDisable()
		end

		-- Cancel and clean up scheduled events
		self:CancelAllTimers()
		scheduledEvents[self] = nil

		self:SendMessage("BigWigs_OnPluginDisable", self)
	end
end

do
	local UnitName = BigWigsLoader.UnitName
	--- Get the full name of a unit.
	-- @string unit unit token or name
	-- @bool[opt] trimServer append * instead of the server name
	-- @return unit name with the server appended if appropriate
	function plugin:UnitName(unit, trimServer)
		local name, server = UnitName(unit)
		if not name then
			return
		elseif server and server ~= "" then
			name = name .. (trimServer and "*" or "-"..server)
		end
		return name
	end
end

do
	local UnitGUID = BigWigsLoader.UnitGUID
	--- Get the Globally Unique Identifier of a unit.
	-- @string unit unit token or name
	-- @return guid guid of the unit
	function plugin:UnitGUID(unit)
		local guid = UnitGUID(unit)
		if guid then
			return guid
		end
	end
end

do
	local raidList = {
		"raid1", "raid2", "raid3", "raid4", "raid5", "raid6", "raid7", "raid8", "raid9", "raid10",
		"raid11", "raid12", "raid13", "raid14", "raid15", "raid16", "raid17", "raid18", "raid19", "raid20",
		"raid21", "raid22", "raid23", "raid24", "raid25", "raid26", "raid27", "raid28", "raid29", "raid30",
		"raid31", "raid32", "raid33", "raid34", "raid35", "raid36", "raid37", "raid38", "raid39", "raid40"
	}
	local partyList = {"player", "party1", "party2", "party3", "party4"}
	local GetNumGroupMembers, IsInRaid, UnitPosition = GetNumGroupMembers, IsInRaid, UnitPosition
	--- Iterate over your group.
	-- Automatically uses "party" or "raid" tokens depending on your group type.
	-- @bool[opt] noInstanceFilter If true then all group units are returned even if they are not in your instance
	-- @return iterator
	function plugin:IterateGroup(noInstanceFilter)
		local _, _, _, instanceId = UnitPosition("player")
		local num = GetNumGroupMembers() or 0
		local i = 0
		local size = num > 0 and num+1 or 2
		local function iter(t)
			i = i + 1
			if i < size then
				if not noInstanceFilter then
					local _, _, _, tarInstanceId = UnitPosition(t[i])
					if instanceId ~= tarInstanceId then
						return iter(t)
					end
				end
				return t[i]
			end
		end
		return iter, IsInRaid() and raidList or partyList
	end

	--- Get raid group unit tokens.
	-- @return indexed table of raid unit tokens
	function plugin:GetRaidList()
		return raidList
	end

	--- Get party unit tokens.
	-- @return indexed table of party unit tokens
	function plugin:GetPartyList()
		return partyList
	end
end

do
	local PlaySoundFile = BigWigsLoader.PlaySoundFile
	--- Play a sound file.
	-- @param sound Either a FileID (number), or the path to a sound file (string)
	-- @string[opt] channel the channel the sound should play on, defaults to "Master"
	function plugin:PlaySoundFile(sound, channel)
		return PlaySoundFile(sound, channel or "Master")
	end
end

do
	local SimpleTimer = BigWigsLoader.CTimerAfter
	--- Trigger a function after a specific delay
	-- @param func callback function to trigger after the delay
	-- @number delay how long to wait until triggering the function
	function plugin:SimpleTimer(func, delay)
		SimpleTimer(delay, func)
	end
end

do
	local Timer = BigWigsLoader.CTimerNewTimer
	function plugin:ScheduleTimer(func, delay)
		local timerId = Timer(delay, func)
		scheduledEvents[self][timerId] = true
		return timerId
	end
end

do
	local Ticker = BigWigsLoader.CTimerNewTicker
	function plugin:ScheduleRepeatingTimer(func, delay)
		local timerId = Ticker(delay, func)
		scheduledEvents[self][timerId] = true
		return timerId
	end
end

function plugin:CancelTimer(timerId)
	if scheduledEvents[self] and scheduledEvents[self][timerId] then
		timerId:Cancel()
		scheduledEvents[self][timerId] = nil
	end
end

function plugin:CancelAllTimers()
	for k in next, scheduledEvents[self] do
		k:Cancel()
	end
	scheduledEvents[self] = {}
end

--- Force the options panel to update.
function plugin:UpdateGUI()
	local acr = LibStub("AceConfigRegistry-3.0", true)
	if acr then
		acr:NotifyChange("BigWigs")
	end
end

do
	local hexColors = {}
	local format, gsub = string.format, string.gsub
	local UnitClass = UnitClass
	for k, v in next, (CUSTOM_CLASS_COLORS or RAID_CLASS_COLORS) do
		hexColors[k] = format("|cff%02x%02x%02x", v.r * 255, v.g * 255, v.b * 255)
	end
	local coloredNames = setmetatable({}, {__index =
		function(self, key)
			if key then
				local shortKey = gsub(key, "%-.+", "*") -- Replace server names with *
				local _, class = UnitClass(key)
				if class then
					local newKey = hexColors[class] .. shortKey .. "|r"
					self[key] = newKey
					return newKey
				else
					return shortKey
				end
			end
		end
	})

	--- Get a table that colors player names based on class.
	-- @return list of names colored by class with server names trimmed
	function plugin:GetColoredNameTable()
		return coloredNames
	end
end

do
	local SendAddonMessage, IsInGroup = BigWigsLoader.SendAddonMessage, IsInGroup
	local pName = BigWigsLoader.UnitName("player")
	--- Send an addon sync to other players.
	-- @param msg the sync message/prefix
	-- @param[opt] extra other optional value you want to send
	-- @bool[opt] noResend if true, no re-send will be attempted if the message fails to send
	-- @usage self:Sync("pluginName", data)
	function plugin:Sync(msg, extra, noResend)
		if BigWigsLoader.isBeta then return end -- XXX 12.0 Needs fixing (not allowed in raids/dungeons atm)
		if msg and self:IsEnabled() then
			if IsInGroup() then
				msg = "P^".. msg
				if extra then
					msg = msg .."^".. extra
				end
				local result = SendAddonMessage("BigWigs", msg, IsInGroup(2) and "INSTANCE_CHAT" or "RAID")
				if type(result) == "number" and result > 0 then
					if result == 3 or result == 8 or result == 9 then
						if not noResend then
							self:SimpleTimer(function() self:Sync(msg, extra) end, 1)
						end
						return
					else
						local errorMsg = format("Failed to send plugin comm %q. Error code: %d", msg, result)
						core:Error(errorMsg)
					end
				end
				self:SendMessage("BigWigs_PluginComm", msg, extra, pName)
			else
				self:SendMessage("BigWigs_PluginComm", msg, extra, pName)
			end
		end
	end
end

do
	local loc = GetLocale()
	local isWest = loc ~= "koKR" and loc ~= "zhCN" and loc ~= "zhTW" and true
	local media = LibStub("LibSharedMedia-3.0")
	local FONT = media.MediaType and media.MediaType.FONT or "font"

	local sizes = {
		[10] = isWest and 10 or loc == "koKR" and 11 or 15,
		[12] = (isWest or loc == "koKR") and 12 or 15,
	}
	local fontName = isWest and "Noto Sans Regular" or media:GetDefault(FONT)
	local fontPath = media:Fetch(FONT, fontName)

	function plugin:GetDefaultFont(size)
		if size then
			if sizes[size] then size = sizes[size] end
			return fontPath, size
		else
			return fontName
		end
	end
end
