--[[
    Copyright (c) 2010-2011 by Adam Hellberg

    This file is part of Chocobo.

    Chocobo is free software: you can redistribute it and/or modify
    it under the terms of the GNU General Public License as published by
    the Free Software Foundation, either version 3 of the License, or
    (at your option) any later version.

    Chocobo is distributed in the hope that it will be useful,
    but WITHOUT ANY WARRANTY; without even the implied warranty of
    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
    GNU General Public License for more details.

    You should have received a copy of the GNU General Public License
    along with Chocobo. If not, see <http://www.gnu.org/licenses/>.

	------

	Chocobo AddOn
	Dedicated to Shishu (Flurdy) on Azuremyst-EU
--]]

Chocobo = {
	Name = "Chocobo",
	Version = GetAddOnMetadata("Chocobo", "Version"),
	Loaded = false,
	Mounted = false,
	Running = false, -- True if the OnUpdate handler is running.
	MusicDir = "Interface\\AddOns\\Chocobo\\music\\",
	Global = {},
	Events = {},
	Songs = { -- Default songs loaded on first run
		-- Please note that you can't add custom songs here, this is only used when restoring default settings or on initial setup
		"chocobo.mp3",
		"chocobo_ffiv.mp3",
		"chocobo_ffxii.mp3",
		"chocobo_ffxiii.mp3"
	},
	IDs	= {
		Hawkstriders = {
			35022, -- Black Hawkstrider
			35020, -- Blue Hawkstrider
			35018, -- Purple Hawkstrider
			34795, -- Red Hawkstrider
			63642, -- Silvermoon Hawkstrider
			66091, -- Sunreaver Hawkstrider
			35025, -- Swift Green Hawkstrider
			33660, -- Swift Pink Hawkstrider
			35027, -- Swift Purple Hawkstrider
			65639, -- Swift Red Hawkstrider
			35028, -- Swift Warstrider (Thanks Khormin for pointing it out)
			46628  -- Swift White Hawkstrider
		},
		Plainstriders = {
			102346, -- Swift Forest Strider
			102350, -- Swift Lovebird
			101573, -- Swift Shorestrider
			102349  -- Swift Springtrider
		},
		RavenLord = {41252}, -- Raven Lord (If enabled in options)
		Flametalon = {101542}, -- Flametalon of Alysrazor (Fire version of Raven Lord)
		DruidForms = {33943, 40120} -- When AllMounts is enabled
	}
}

local C = Chocobo

--[===[@debug@
if C.Version == "@".."project-version".."@" then C.Version = "Development" end
--@end-debug@]===]

local t = 0

local CLib = ChocoboLib
local L = _G["ChocoboLocale"]

assert(CLib, "Chocobo Lib not loaded")
assert(L, "Chocobo Locales not loaded")

function C:OnEvent(frame, event, ...)
	if self.Events[event] then self.Events[event](self, ...) end
end

function C.Events.ADDON_LOADED(self, ...)
	-- Currently, this seems a bit bugged when having multiple addons. The "loaded" message will disappear sometimes.
	local addonName = (select(1, ...)):lower()
	if addonName ~= "chocobo" or self.Loaded then return end
	if type(_G["CHOCOBO"]) ~= "table" then _G["CHOCOBO"] = {} end
	self.Global = _G["CHOCOBO"]
	if not self.Global["DEBUG"] then
		-- Should be fired on first launch, set the saved variable to default value
		self:Msg(L["DebugNotSet"])
		self.Global["DEBUG"] = false
	end
	if not self.Global["ALLMOUNTS"] then
		-- Should be fired on first launch, set the saved variable to default value
		self:Msg(L["AllMountsNotSet"])
		self.Global["ALLMOUNTS"] = false
	end
	if not self.Global["PLAINSTRIDER"] then
		self:Msg(L["PlainstridersNotSet"])
		self.Global["PLAINSTRIDER"] = true
	end
	if not self.Global["RAVENLORD"] then
		self:Msg(L["RavenLordNotSet"])
		self.Global["RAVENLORD"] = false
	end
	if not self.Global["FLAMETALON"] then
		self:Msg(L["FlametalonNotSet"])
		self.Global["FLAMETALON"] = false
	end
	if not self.Global["MUSIC"] then -- If the song list is empty
		-- Populate the table with default songs
		self:Msg(L["NoMusic"])
		self.Global["MUSIC"] = {}
		for _,v in pairs(self.Songs) do -- Add all of the default songs
			self:AddMusic(v)
		end
	end
	if not self.Global["MOUNTS"] then
		self:Msg(L["NoMounts"])
		self.Global["MOUNTS"] = {}
	end
	if not self.Global["CUSTOM"] then
		self.Global["CUSTOM"] = {}
	end
	if not self.Global["ENABLED"] then
		-- Should be fired on first launch, set the saved variable to default value
		self:Msg(L["EnabledNotSet"])
		self.Global["ENABLED"] = true
	end

	self.SoundControl:Init()
	self.SoundControl:Check()

	-- [NEW] Check all songs and convert out-of-date ones to new format
	-- (Removing the Interface\\AddOns\\Chocobo\\music\\ part)
	self:MusicCheck()

	self:Msg((L["AddOnLoaded"]):format(self.Version))
	self:Msg(L["Enjoy"])
	self.Loaded = true
end

function C.Events.UNIT_AURA(self, ...)
	local unitName = (select(1, ...)):lower()
	if unitName ~= "player" or not self.Global["ENABLED"] then return end -- Return if addon is disabled or player was unaffected
	self:DebugMsg((L["Event_UNIT_AURA"]):format(unitName))
	if self.Loaded == false then
		-- This should NOT happen
		self:ErrorMsg(L["NotLoaded"])
		return
	end
	if self.Running then return end -- Return if the OnUpdate script is already running.
	self.Running = true
	t = 0
	self.Frame:SetScript("OnUpdate", function (_, elapsed) Chocobo:OnUpdate(_, elapsed) end)
end

function C.Events.PLAYER_LOGOUT(self, ...)
	-- Save local copy of globals
	-- TODO: Is this redundant?
	_G["CHOCOBO"] = self.Global
end

function C:OnUpdate(_, elapsed)
	t = t + elapsed
	-- When 1 second has elapsed, this is because it takes ~0.5 secs from the event detection for IsMounted() to return true.
	if t >= 1 then
		-- Unregister the OnUpdate script
		self.Frame:SetScript("OnUpdate", nil)
		local mounted, mountName, mountID = self:HasMount() -- Get mounted status and name of mount (if mounted)
		if IsMounted() or mounted then -- More efficient way to make it also detect flight form here?
			if mountName then self:DebugMsg((L["CurrentMount"]):format(mountName)) end -- Print what mount the player is mounted on
			self:DebugMsg(L["PlayerIsMounted"]) -- Print that the player is mounted
			-- TODO: Redundant to have both the above messages? Remove the second?
			-- Proceed if player is on one of the activated mounts or if allmounts (override) is true
			if mounted or self.Global["ALLMOUNTS"] then
				self:DebugMsg(L["PlayerOnHawkstrider"])
				if not self.Mounted then -- Check so that the player is not already mounted
					self.SoundControl:Check() -- Enable sound if disabled and the option is enabled
					self:DebugMsg(L["PlayingMusic"])
					self.Mounted = true
					if type(mountName) ~= "string" then -- Player mounted but mount is not recognised, check all buffs to find a match
						local found = false
						local index = 1
						repeat
							local name = (select(1, UnitAura("player", index)))
							if self.Global["CUSTOM"][name:lower()] then
								self:PlayRandomMusic(name)
								found = true
							end
							index = index + 1
						until found or index > 40
						if not found then self:PlayRandomMusic() end
					elseif self.Global["CUSTOM"][mountName:lower()] then
						self:PlayRandomMusic(mountName)
					else
						self:PlayRandomMusic()
					end
				else -- If the player has already mounted
					self:DebugMsg(L["AlreadyMounted"])
				end
			else -- Player is not on a hawkstrider
				self:DebugMsg(L["NoHawkstrider"])
			end
		elseif self.Mounted then -- When the player has dismounted
			self.SoundControl:Check() -- Disable sound if enabled and the option is enabled
			self:DebugMsg(L["NotMounted"])
			self.Mounted = false
			StopMusic() -- Note that StopMusic() will also stop any other custom music playing (such as from EpicMusicPlayer)
		end
		self.Running = false
	end
end

function C:HasMount()
	local mountColl = {}
	for _,v in pairs(self.IDs.Hawkstriders) do
		table.insert(mountColl, v)
	end
	if self.Global["PLAINSTRIDER"] then
		for _,v in pairs(self.IDs.Plainstriders) do
			table.insert(mountColl, v)
		end
	end
	if self.Global["RAVENLORD"] then
		for _,v in pairs(self.IDs.RavenLord) do
			table.insert(mountColl, v)
		end
	end
	if self.Global["FLAMETALON"] then
		for _,v in pairs(self.IDs.Flametalon) do
			table.insert(mountColl, v)
		end
	end
	if self.Global["ALLMOUNTS"] then -- Add druid flight forms
		for _,v in pairs(self.IDs.DruidForms) do
			table.insert(mountColl, v)
		end
	end
	if #self.Global["MOUNTS"] > 0 then
		for _,v in pairs(self.Global["MOUNTS"]) do
			table.insert(mountColl, v) -- Can be both a string and a number value
		end
	end
	return CLib:HasBuff(mountColl)
end

function C:MusicCheck()
	local matchString = "^" .. self.MusicDir -- Match the music dir path at the beginning of the string only.
	local length = self.MusicDir:len() + 1 -- The substring has to start AFTER the matched string, adding one to the length.
	local updated = 0 -- Keep track of how many songs that had to update
	for i,v in ipairs(self.Global["MUSIC"]) do
		if v:match(matchString) then
			local change = v:sub(length, v:len()) -- A substring that includes only the filename (or subfolders, if any)
			self.Global["MUSIC"][i] = change
			self:Msg((L["SongUpdated"]):format(i, change))
			updated = updated + 1
		end
	end
	if updated > 0 then -- Print how many songs that were updated
		self:Msg((L["SongsUpdated"]):format(updated))
	else -- All songs up to date, no action needed
		self:Msg(L["SongsUpToDate"])
	end
end

-- If isMount is true, treat song as the mount name/ID
function C:PlayMusic(song, isMount)
	local songFile
	local rawFileName -- Song file name without folder structure
	if isMount then
		song = song:lower()
		if self.Global["CUSTOM"][song] then
			local id = math.random(1, #self.Global["CUSTOM"][song])
			songFile = self.Global["CUSTOM"][song][id]
			if #self.Global["CUSTOM"][song] > 1 and self.Global["PREVENTDUPE"] and songFile == nowPlaying then
				while songFile == nowPlaying do
					id = math.random(1, #self.Global["CUSTOM"][song])
					songFile = self.Global["CUSTOM"][song][id]
				end
			end
			self:DebugMsg((L["PlayingSong"]):format(id, songFile))
		else
			self:ErrorMsg((L["CustomNotDefined"]):format(song))
			return
		end
		if type(songFile) ~= "string" then
			self:ErrorMsg((L["CustomSongNotFound"]):format(song))
			return
		end
	elseif type(song) == "string" then
		songFile = song
	else
		songFile = self.Global["MUSIC"][song]
		if not songFile then
			self:ErrorMsg(L["SongNotFound"])
			return false
		end
		self:DebugMsg((L["PlayingSong"]):format(song, songFile))
	end
	nowPlaying = songFile
	songFile = self.MusicDir .. songFile
	PlayMusic(songFile)
end

function C:PlayRandomMusic(mount)
	if mount then
		self:PlayMusic(mount, true)
	else
		self:PlayMusic(math.random(1, #self.Global["MUSIC"]))
	end
end

function C:AddMusic(songName) -- Add a song the the list
	songName = CLib:Trim(songName)
	if songName == "" or songName == nil then
		self:ErrorMsg(L["NoFile"])
		return false
	end
	for _,v in pairs(self.Global["MUSIC"]) do -- Loop through all the songs currently in the list and...
		if v == songName then -- ... make sure it isn't there already
			self:ErrorMsg(L["AlreadyExists"])
			return false
		end
	end
	table.insert(self.Global["MUSIC"], songName) -- Insert the song into list
	self:Msg((L["AddedSong"]):format(songName))
	return true
end

function C:RemoveMusic(songName) -- Remove a song from the list
	if type(songName) == "number" then
		if self.Global["MUSIC"][songName] then
			local name = self.Global["MUSIC"][songName]
			table.remove(self.Global["MUSIC"], songName)
			self:Msg((L["RemovedSong"]):format(name))
			return true
		end
		return false
	end
	songName = CLib:Trim(songName)
	if songName == "" or songName == nil then
		self:ErrorMsg(L["NoFile"])
		return false
	end
	for i,v in ipairs(self.Global["MUSIC"]) do -- Loop through all the songs in the list until...
		if v == songName then -- ... the desired one is found and then...
			table.remove(self.Global["MUSIC"], i) -- ... remove it from the list.
			self:Msg((L["RemovedSong"]):format(songName))
			return true
		end
	end
	self:ErrorMsg(L["SongNotFound"])
	return false
end

function C:AddCustomMusic(song, mount)
	song = CLib:Trim(tostring(song))
	mount = mount:lower()
	if song == "" or type(song) ~= "string" then
		self:ErrorMsg((L["AddCustomInvalidSong"]):format(tostring(song)))
		return
	elseif type(mount) ~= "string" then
		self:ErrorMsg((L["AddCustomInvalidMount"]):format(tostring(mount)))
	end
	if self.Global["CUSTOM"][mount] then
		if CLib:InTable(self.Global["CUSTOM"][mount], song) then
			self:ErrorMsg((L["AddCustomExists"]):format(song, mount))
			return
		end
		table.insert(self.Global["CUSTOM"][mount], song)
		self:Msg((L["AddCustomSuccess"]):format(song, mount))
	else
		self.Global["CUSTOM"][mount] = {song}
		self:Msg((L["AddCustomSuccess"]):format(song, mount))
	end
end

function C:RemoveCustomMusic(mount)
	mount = mount:lower()
	if type(mount) ~= "string" then
		self:ErrorMsg((L["RemoveCustomInvalidMount"]):format(tostring(mount)))
	end
	if self.Global["CUSTOM"][mount] then
		wipe(self.Global["CUSTOM"][mount])
		self.Global["CUSTOM"][mount] = nil
		self:Msg((L["RemoveCustomSuccess"]):format(mount))
	else
		self:ErrorMsg((L["RemoveCustomNotExist"]):format(mount))
	end
end

function C:PrintMusic() -- Print all the songs currently in list to chat
	if #self.Global["MUSIC"] <= 0 then
		self:Msg(L["MusicListEmpty"])
	else
		for i,v in ipairs(self.Global["MUSIC"]) do
			self:Msg(("\124cff00CCFF%i: %s\124r"):format(i, v))
		end
	end

	if CLib:Count(self.Global["CUSTOM"]) <= 0 then
		return
	end

	self:Msg(L["PrintMusicCustomStart"])

	for k,v in pairs(self.Global["CUSTOM"]) do
		self:Msg((L["PrintMusicCustomHeader"]):format(k))
		for _,s in pairs(v) do
			self:Msg((L["PrintMusicCustomSong"]):format(s))
		end
	end
end

function C:ResetMusic() -- Resets the values in Chocobo.Global["MUSIC"] to default
	self:Msg(L["ResetMusic"])
	self.Global["MUSIC"] = nil -- "Erase" the data from Chocobo.Global["MUSIC"]
	self.Global["MUSIC"] = {} -- Make it a new table
	for _,v in pairs(self.Songs) do -- Add all the default songs again
		self:AddMusic(v)
	end
end

function C:AddMount(mount)
	mount = CLib:Trim(mount)
	mount = tonumber(mount) or mount
	if mount == "" or mount == nil then
		self:ErrorMsg(L["NoMount"])
		return
	end
	local compare = tostring(mount):lower()
	for _,v in pairs(self.Global["MOUNTS"]) do
		if tostring(v):lower() == compare then
			self:ErrorMsg(L["MountAlreadyExists"])
			return
		end
	end
	table.insert(self.Global["MOUNTS"], mount)
	self:Msg((L["AddedMount"]):format(mount))
end

function C:RemoveMount(mount)
	if mount == "" or mount == nil then
		self:ErrorMsg(L["NoMount"])
		return
	end
	mount = mount:lower()
	for i,v in ipairs(self.Global["MOUNTS"]) do
		if v:lower() == mount then
			table.remove(self.Global["MOUNTS"], i)
			self:Msg((L["RemovedMount"]):format(mount))
			return
		end
	end
	self:ErrorMsg(L["MountNotFound"])
end

function C:PrintMounts()
	if #self.Global["MOUNTS"] <= 0 then
		self:Msg(L["MountListEmpty"])
	else
		for i,v in ipairs(self.Global["MOUNTS"]) do
			self:Msg(("\124cff00CCFF%i: %s\124r"):format(i, v))
		end
	end
end

function C:ResetMounts()
	self:Msg(L["ResetMounts"])
	self.Global["MOUNTS"] = nil
	self.Global["MOUNTS"] = {}
end

function C:FilterMount(filter, silent)
	if type(filter) == "nil" then filter = Chocobo.Global["ALLMOUNTS"] end
	if filter then
		if not silent then self:Msg(L["HawkstriderOnly"]) end
		self.Global["ALLMOUNTS"] = false
	else
		if not silent then self:Msg(L["AllMounts"]) end
		self.Global["ALLMOUNTS"] = true
	end
end

function C:ToggleDebug()
	self:Debug(not self.Global["DEBUG"], true)
end

function C:Debug(set, silent)
	if set == "enable" or set == "on" or set == true then
		if not silent then self:Msg(L["DebuggingEnabled"]) end
		self.Global["DEBUG"] = true
	elseif set == "disable" or set == "off" or set == false then
		if not silent then self:Msg(L["DebuggingDisabled"]) end
		self.Global["DEBUG"] = false
	elseif not silent then
		if self.Global["DEBUG"] then
			self:Msg(L["DebugIsEnabled"])
		else
			self:Msg(L["DebugIsDisabled"])
		end
	end
end

function C:PlainstriderToggle(silent)
	self.Global["PLAINSTRIDER"] = not self.Global["PLAINSTRIDER"]
	if silent then return end
	if self.Global["PLAINSTRIDER"] then
		self:Msg(L["PlainstriderTrue"])
	else
		self:Msg(L["PlainstriderFalse"])
	end
end

function C:RavenLordToggle(silent)
	self.Global["RAVENLORD"] = not self.Global["RAVENLORD"]
	if silent then return end
	if self.Global["RAVENLORD"] then
		self:Msg(L["RavenLordTrue"])
	else
		self:Msg(L["RavenLordFalse"])
	end
end

function C:FlametalonToggle(silent)
	self.Global["FLAMETALON"] = not self.Global["FLAMETALON"]
	if silent then return end
	if self.Global["FLAMETALON"] then
		self:Msg(L["FlametalonTrue"])
	else
		self:Msg(L["FlametalonFalse"])
	end
end

function C:Toggle(silent) -- Toggle the AddOn on and off
	if self.Global["ENABLED"] then -- If the addon is enabled
		self.Global["ENABLED"] = false -- Disable it
		StopMusic()
		if not silent then self:Msg(L["AddOnDisabled"]) end -- Print status
	else -- If the addon is disabled
		self.Global["ENABLED"] = true -- Enable it
		if not silent then self:Msg(L["AddOnEnabled"]) end -- Print status
	end
end

function C:GetGlobal(var)
	return self.Global[var]
end

function C:Msg(msg) -- Send a normal message
	DEFAULT_CHAT_FRAME:AddMessage(L["MsgPrefix"] .. msg)
end

function C:ErrorMsg(msg) -- Send an error message, these are prefixed with the word "ERROR" in red
	DEFAULT_CHAT_FRAME:AddMessage(L["ErrorPrefix"] .. msg)
end

function C:DebugMsg(msg) -- Send a debug message, these are only sent when debugging is enabled and are prefixed by the word "Debug" in yellow
	if self.Global["DEBUG"] == true then
		DEFAULT_CHAT_FRAME:AddMessage(L["DebugPrefix"] .. msg)
	end
end

function C:GetVersion()
	return self.Version
end

-- Create the frame, no need for an XML file!
C.Frame = CreateFrame("Frame")
C.Frame:SetScript("OnEvent", function (frame, event, ...) C:OnEvent(frame, event, ...) end)
for k,_ in pairs(C.Events) do
	C.Frame:RegisterEvent(k)
end
