--------------------------------------
----------// HEADER //----------------
--------------------------------------
--[[
 * REALIVE: Reaper Setup for a Complete Live Playback Engine
 * ReaScript Name: Realive_ProjectTabsList_CloseAllTabs.lua
 * Description: Close All Project Tabs
 * Instructions:
 * Author: Alex Paquette, Thanks to Claude Fillion for the Large contribution
 * Repository: 
 * Repository URI:
 * File URI:
 * Licence: GPL v3
 * Forum Thread:
 * Forum Thread URI: https://forum.cockos.com/showthread.php?p=1854775#post1854775
 * REAPER: 5
 * Extensions: SWS/S&M
 * Version: 2.00
--]]
 
--[[
 * Changelog:
 * v1.0 (2019-06-02)
	+ Initial Release
--]]


--------------------------------------
----------// VARIABLES //-------------
--------------------------------------

local reaper = reaper  -------// Performance Enhancement //----------
local EXT_SECTION = 'ProjectTabs_Reaper_list'
local EXT_SECTION_PLAYLIST = 'ProjectTabs_Realive_list'

-----// Window Set Numbers //------------------------------
local PlayViewWindowSet = 01 -- Enter Window Set Number Used for the "Live Play" View
local AllTracksViewWindowSet = 02 -- Enter the Window Set Number for the "Show All Tracks" View
local WindowSetBaseNumber = 40453
local PlayView_cmdID = WindowSetBaseNumber+PlayViewWindowSet
local AllView_cmdID = WindowSetBaseNumber+AllTracksViewWindowSet
local RegionWindow_cmdID = reaper.NamedCommandLookup("_RS05396ad2c5c53e928799e707652dea37cc588b3c")
local ResetPlayView_cmdID = reaper.NamedCommandLookup("_RS08d5f2749008cc0f6f53feb223d1638fde598566")
local REAPERPath = reaper.GetResourcePath()
local ProjectPath = (REAPERPath.."//ProjectTemplates")
local ProjectName = "AudioRouting.RPP"




local debug = false

-----// Project Templates //------------------------------
local Template_AudioRouting_cmdID = reaper.NamedCommandLookup("_RS46bebf2345d0c062f8ec5e72df8bc80190970cfb")
local Template_LineCheck_cmdID = reaper.NamedCommandLookup("_RS9799aed89bdfcc32214f3bd1e17ec57ba42ae7eb")
local Template_Song_cmdID = reaper.NamedCommandLookup("_RS62e37ab3059a6dab6616675ecd3c4c83162a0859")

-----// gmem Variables //------------------------------
local gmemSect = 'Realive_Gmem'
local gmem_idx_PlaylistState = 11
local gmem_idx_Management = 12
local gmem_idx_PlaylistState_Clean = 32
local gmem_idx_PlaylistCount_Reaper = 30
local gmem_idx_PlaylistCount_Realive = 31
local gmemPlaylist_SaveRequest = 1 
local gmemPlaylist_SaveRefused = 2
local gmemPlaylist_Initialize = 3
local gmemPlaylist_RealiveListItem_Remove = 4
local gmemPlaylist_RealiveListItem_Add = 5
local gmemPlaylist_RealiveListItem_Update = 6
local gmemPlaylist_ProjectTabs_CleanStatus = 9
local gmem_idxRead_Mngmt = reaper.gmem_read(gmem_idx_Management)


local playlistState = reaper.GetExtState('Realive_Playlist', 'State')
local realivePlaylist_compare = 0








-----------------------------------------------------------
-----// DEBUG FUNCTION //----------------------------------
-----------------------------------------------------------
if debug then reaper.ShowConsoleMsg("") end
function Msg(value)
	if debug then
    	reaper.ShowConsoleMsg(tostring(value) .. "\n")
	end
end





-----------------------------------------------------------
-----// FUNCTIONS //---------------------------------------
-----------------------------------------------------------
function Playlist_CountProjectTabs()
	local ProjCount=-1
	local Aretval="t"
	while Aretval~=nil do
		local Aretval, Aprojfn = reaper.EnumProjects(ProjCount+1, "")
		if Aretval~=nil then ProjCount=ProjCount+1
		else break
		end
	end
	return ProjCount+1
end



function Actions_ResetAllProjects()
    local prjct_Counter = Playlist_CountProjectTabs()
	for p = 0, prjct_Counter do
		local proj = reaper.EnumProjects(p, 0)
		if not proj then break
		else
		  reaper.SetEditCurPos2(proj, 0, true, true)
		end
	end
end



-----------------------------------------------------------
-----// Realive List Management //-------------------------
-----------------------------------------------------------

function makeKey(i)
	return string.format('project%d', i)
end


function enum_RealivePlaylist()
	local i = 1
		return function()
		local key = makeKey(i)
			i = i + 1
		if reaper.HasExtState(EXT_SECTION_PLAYLIST, key) then
		return key
		end
	end
end


function get_RealivePlaylist()
	local Realive_list = {}
	for Realive_key in enum_RealivePlaylist() do
		local Realive_projfn = reaper.GetExtState(EXT_SECTION_PLAYLIST, Realive_key)
		table.insert(Realive_list, Realive_projfn)
		end
	return Realive_list
end



-----------------------------------------------------------
-----// SAVE RPL FUNCTION //-------------------------------
-----------------------------------------------------------
function SaveRPL()
	local out_str = ''
	local targetPath = ''
	if reaper.HasExtState('Realive_PlaylistFolder', 'lastPath') then
		lastPath = reaper.GetExtState('Realive_PlaylistFolder', 'lastPath')
	end
	if reaper.HasExtState('Realive_PlaylistFolder', 'defaultPath') then
		defaultPath = reaper.GetExtState('Realive_PlaylistFolder', 'defaultPath')
	end
	if lastPath ~= '' then targetPath = lastPath
	elseif defaultPath ~= '' then targetPath = defaultPath
	end
	local unsavedConfirm = 0
	local playlist = get_RealivePlaylist()
	
 	local projcnt = Playlist_CountProjectTabs()
	local UnsavedProj_cnt = 0
    for i = 1, projcnt do
      local retval, projfn=  reaper.EnumProjects( i-1, '' )
	  if projfn =='' then UnsavedProj_cnt = UnsavedProj_cnt+1 end
	  Msg('projfn: '..projfn)
    end
    Msg('UnsavedProject: '..UnsavedProj_cnt)
    if UnsavedProj_cnt > 0 then
		unsavedConfirm = reaper.ShowMessageBox("Your list contains project(s) that have no name. They will not be saved in the playlist.  Do you still want to proceed? ", 'Warning', 4) -- Yes = 6, No = 7, Cancel = 2
		Msg('unsavedConfirm: '..unsavedConfirm)
		if unsavedConfirm ~= 6 then return end	
	end

	local SaveDialogAnswer, saving_folder = reaper.JS_Dialog_BrowseForSaveFile('Save RPL', targetPath, '', 'Reaper Playlist files (.RPL)\0*.RPL\0\0')
	Msg('SaveDialogAnswer: '..SaveDialogAnswer)
	if SaveDialogAnswer == 1 then -- if a file was selected
		extst_path = string.match(saving_folder, ".+/")
		reaper.SetExtState('Realive_PlaylistFolder', 'lastPath', extst_path, false)
		Msg('path: '..extst_path)
		for i = 1, #playlist do 
			out_str = out_str..playlist[i]..'\n' 
		end                          
		local f = io.open(saving_folder, 'w')                          
		f:write(out_str)
		f:close()
		CloseAllTabs()
		return true
	else 
		return false
	end
end
-----------------------------------------------------------
-----------------------------------------------------------
function RefreshPlaylist()
--	reaper.gmem_write(gmem_idx_Management, gmemPlaylist_Initialize)	
---[[
	local cmd_id = reaper.NamedCommandLookup('_RS2071ccff7199c897478c49da97ca1422fc732d4f')
	local state = reaper.GetToggleCommandState(cmd_id)
	if state == 1 then 
	  reaper.Main_OnCommand(cmd_id, 0)
	  reaper.Main_OnCommand(cmd_id, 0)
	  reaper.SetCursorContext(1) --Focus Arrange Window
	end
--]]
end





function CloseAllTabs()
	reaper.Main_OnCommand(40886, 0) -- Close All Projects
	reaper.Main_OnCommand(41929, 0) -- Open empty project
	reaper.Main_OnCommand(reaper.NamedCommandLookup("_SWS_FIRSTPROJTAB"), 0) -- Switch to 1st Tab
	reaper.Main_OnCommand(40860, 0) -- Close tab
--	reaper.SetExtState('Realive_Playlist', 'audioRouting_Validation', 'NotValid', false)
	reaper.Main_openProject('template:'..ProjectPath.."/"..ProjectName)
	reaper.Main_OnCommand(40859, 0) -- New Tab Ignore Default Template
--	reaper.Main_OnCommand(Template_Song_cmdID, 0) -- Open Song Tab
	RefreshPlaylist()

	reaper.Main_OnCommand(ResetPlayView_cmdID, 0) -- Reset Play View
	
--	reaper.gmem_write(gmem_idx_Management, gmemPlaylist_ProjectTabs_CleanStatus)
--	reaper.SetExtState('Realive_Playlist', 'State', 'Cln', false)
end


------------------------------------------
---------// RUN FUNCTION  //--------------
------------------------------------------
function run()

	if playlistState == 'Drty' then
		realivePlaylist_compare = reaper.ShowMessageBox("Do you want to save your Playlist? ", 'Playlist was Changed', 3) -- Yes = 6, No = 7, Cancel = 2
	end

	if realivePlaylist_compare == 2 then return end -- if Cancel then Do Nothing
	if realivePlaylist_compare == 6 then -- if Yes then Save RPL
		SaveRPL()
	else
		CloseAllTabs()
	end
end

------------------------------------------
---------// RUNTIME  //-------------------
------------------------------------------
reaper.gmem_attach(gmemSect)
run()