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--[[
  	Mouse File Browser
		by:
			Stiepen irc(Kilobyte)
			Cruor
			BigSHinyToys
		
		note: send link to nightin9ale on CC forums
--]]

local tArgs = {...}
local ver = "1.4"
local sTitle = "File Browser"
local bugTest, norun, dir, showAll
local _tArgs = {}
local config = "mouse.cfg"

local temp
if shell and shell.getRunningProgram then
	temp = shell.getRunningProgram()
end

temp = temp or "/bla"
local localPath = string.sub(temp,1,#temp-string.len(fs.getName(temp)))
temp = nil -- just because not needed

-- load config file

local configSet = {}
local cnf = {}

if fs.exists(localPath.."/"..config) then
	local file = fs.open(localPath.."/"..config,"r")
	if file then
		local item = file.readLine()
		while item do
			table.insert(cnf,item)
			item = file.readLine()
		end
		file.close()
	end	
end

for i = 1,10 do
	local test,data = pcall(textutils.unserialize,cnf[i])
	if test then
		configSet[i] = data
	else
		configSet[i] = nil
	end
end
cnf = nil

-- color configuration work in progress
local titleBar = configSet[1] or {txt = colors.black,back = colors.blue}
local addressBar = configSet[2] or {txt = colors.black,back = colors.lightGray}
local itemWindo = configSet[3] or {txt = colors.black,back = colors.cyan}
local rcmList = configSet[4] or {txt = colors.black,back = colors.lightGray} -- rcm = Right Click Menu List
local rcmTitle = configSet[5] or {txt = colors.black,back = colors.blue}
local dialogTitle = configSet[6] or {txt = colors.black,back = colors.blue}
local dialogWindo = configSet[7] or {txt = colors.black,back = colors.white}
local scrollCol = configSet[8] or {off = colors.gray, button = colors.gray,back = colors.lightGray}

local tIcons = configSet[9] or {
	back = {tCol = "lightGray",bCol = "blue",txt = " < "},
	disk = {tCol = "lime",bCol = "green",txt = "[*]"},
	audio = {tCol = "yellow",bCol = "red",txt = "(o)"},
	folder = {tCol = "lightGray",bCol = "blue",txt = "[=]"},
	file = {tCol = nil ,bCol = nil ,txt = nil}
}

local customLaunch = configSet[10] or {
	["Edit"] = "rom/programs/edit",
	["Paint"] = "rom/programs/color/paint"
}

local function saveCFG(overWrite)
	if not fs.exists(localPath.."/"..config) or overWrite then
		local cnf = {}
		local file = fs.open(localPath.."/"..config,"w")
		if file then
			file.write(textutils.serialize(titleBar).."\n")
			file.write(textutils.serialize(addressBar).."\n")
			file.write(textutils.serialize(itemWindo).."\n")
			file.write(textutils.serialize(rcmList).."\n")
			file.write(textutils.serialize(rcmTitle).."\n")
			file.write(textutils.serialize(dialogTitle).."\n")
			file.write(textutils.serialize(dialogWindo).."\n")
			file.write(textutils.serialize(scrollCol).."\n")
			file.write(textutils.serialize(tIcons).."\n")
			file.write(textutils.serialize(customLaunch).."\n")
			file.close()
		elseif overWrite then
		end
	end
end

saveCFG()

-- end configuration

local function help()
	print([[Usage: browser [-d] [-h] [-a] [-u] [--debug] [--help] [--dir <dir>] [--all] [--update]
--debug or -d: enable debug mode
--help or -h: display this screen
--dir: define initial directory
--all or -a: show hidden files
--update -u: update]])
end

local function inBouwndry(clickX,clickY,boxX,boxY,width,hight)
	return ( clickX >= boxX and clickX < boxX + width and clickY >= boxY and clickY < boxY + hight )
end

local function update()
	print("Checking for Updates")
	local isHTTP = false
	local response
	if http then
		isHTTP = true
		print("http on")
		response = http.get("http://pastebin.com/raw.php?i=rLbnyM1U")
	end
	local flag = false
	local isNewFlag = false
	local newVerID
	if response and isHTTP then
		print("recived")
		local sInfo = response.readLine()
		print(sInfo)
		while sInfo do
			print(sInfo)
			if flag then
				if sInfo == ver then
					print("Mouse File Browser is up to date")
					break
				else
					newVerID = sInfo
					flag = false
					isNewFlag = true
				end
			elseif sInfo == sTitle then
				flag = true
			elseif isNewFlag then
				isNewFlag = sInfo
				response.close()
				break
			end
			sInfo = response.readLine()
		end
		if isNewFlag then
			print("New vershion avalible "..newVerID)
			print('downloading to \Browser')
			if fs.exists("Browser") then
				write("Browser exists OverWrite Browser Y/N : ")
				local input = string.lower(read())
				while input ~= "y" and input ~= "n" do
					print("y or n required")
					input = string.lower(read())
				end
				if input == "y" then
					print("Over Writeing Browser")
					print("Downloading new File")
					local response = http.get("http://pastebin.com/raw.php?i="..isNewFlag)
					if response then
						print("file downloaded")
						print("installing")
						fs.delete("Browser")
						local handel = fs.open("Browser","w")
						if handel then
							handel.write(response.readAll())
							handel.close()
							print("Update Complete")
						end
						response.close()
					end
				else
					print("Update aborted")
				end
			else
				print("Downloading new File")
				local response = http.get("http://pastebin.com/raw.php?i="..isNewFlag)
				if response then
					print("file downloaded")
					print("installing")
					local handel = fs.open("Browser","w")
					if handel then
						handel.write(response.readAll())
						handel.close()
						print("Update Complete")
					end
					response.close()
				end
			end
		end
	elseif isHTTP then
		print("Error downloading update file Please contact BigSHinyToys on the CC forums")
		print("http://www.computercraft.info/forums2/index.php?/topic/5509-advanced-computer-mouse-file-browser/")
	elseif not isHTTP then
		print("HTTP API is turned off")
		print("Access Computer Craft Configer and change line")
		print([[enableapi_http {
# Enable the "http" API on Computers
general=false
}
TO THIS :
enableapi_http {
# Enable the "http" API on Computers
general=true
}]])
	end
	notCMD = false
	norun = true
end

for a = 1, #tArgs do
	if tArgs[a]:sub(1,2) == "--" then
		local cmd = tArgs[a]:sub(3):lower()
		if cmd == "debug" then
			bugTest = true
		elseif cmd == "help" then
			help()
			norun = true
		elseif cmd == "dir" then
			dir = tArgs[a+1]
			a = a + 1
		elseif cmd == "all" then
			showAll = true
		elseif cmd == "update" then
			update()
		end
	elseif tArgs[a]:sub(1,1) == "-" then
		for b = 2, #tArgs[a] do
			cmd = tArgs[a]:sub(b, b)
			if cmd == "d" then
				bugTest = true
			elseif cmd == "h" then
				help()
				norun = true
			elseif cmd == "p" then
				dir = tArgs[a+1]
				a = a + 1
			elseif cmd == "a" then
				showAll = true
			elseif cmd == "u" then
				update()
			end
		end
	else
		table.insert(_tArgs, tArgs[a])
	end
end

if (not dir) and shell and shell.dir then
	dir = shell.dir()
end

if dir and shell and shell.resolve then
	dir = shell.resolve(dir)
end

dir = dir or "/"

if bugTest then -- this is that the var is for testing
	print("Dir: "..dir)
	os.startTimer(4)
	os.pullEvent()
end

local function clear()
	term.setBackgroundColor(colors.black)
	term.setTextColor(colors.white)
	term.clear()
	term.setCursorBlink(false)
	term.setCursorPos(1,1)
end

--[[
		Code thanks to Cruor 
		http://www.computercraft.info/forums2/index.php?/topic/5802-support-for-shell/
]]--

local function fixArgs(...)
	local tReturn={}
	local str=table.concat({...}," ")
	local sMatch
	while str and #str>0 do
		if string.sub(str,1,1)=="\"" then
			sMatch, str=string.match(str, "\"(.-)\"%s*(.*)")
		else
			sMatch, str=string.match(str, "(%S+)%s*(.*)")
		end
		table.insert(tReturn,sMatch)
	end
	return tReturn
end

--[[ end Cruor function ]]--


-- modified read made to play nice with coroutines

local function readMOD( _sReplaceChar, _tHistory,_wdth)
	local sLine = ""
	term.setCursorBlink( true )

	local nHistoryPos = nil
	local nPos = 0
    if _sReplaceChar then
		_sReplaceChar = string.sub( _sReplaceChar, 1, 1 )
	end
	
	local sx, sy = term.getCursorPos()	

	local w, h = term.getSize()
	if _wdth and type(_wdth) == "number" then
		w = sx + _wdth - 1
	end
	
	local function redraw( _sCustomReplaceChar )
		local nScroll = 0
		if sx + nPos >= w then
			nScroll = (sx + nPos) - w
		end
			
		term.setCursorPos( sx + _wdth - 1, sy )
		term.write(" ")
		term.setCursorPos( sx, sy )
		local sReplace = _sCustomReplaceChar or _sReplaceChar
		if sReplace then
			term.write( string.rep(sReplace,_wdth) )
		else
			term.write( string.sub( sLine, nScroll + 1 ,nScroll + _wdth) )
		end
		term.setCursorPos( sx + nPos - nScroll, sy )
	end
	
	while true do
		local sEvent, param = os.pullEvent()
		if sEvent == "char" then
			sLine = string.sub( sLine, 1, nPos ) .. param .. string.sub( sLine, nPos + 1 )
			nPos = nPos + 1
			redraw()
			
		elseif sEvent == "key" then
			
			if param == keys.left then
				-- Left
				if nPos > 0 then
					nPos = nPos - 1
					redraw()
				end
				
			elseif param == keys.right then
				-- Right				
				if nPos < string.len(sLine) then
					nPos = nPos + 1
					redraw()
				end
			
			elseif param == keys.up or param == keys.down then
                -- Up or down
				if _tHistory then
					redraw(" ");
					if param == keys.up then
						-- Up
						if nHistoryPos == nil then
							if #_tHistory > 0 then
								nHistoryPos = #_tHistory
							end
						elseif nHistoryPos > 1 then
							nHistoryPos = nHistoryPos - 1
						end
					else
						-- Down
						if nHistoryPos == #_tHistory then
							nHistoryPos = nil
						elseif nHistoryPos ~= nil then
							nHistoryPos = nHistoryPos + 1
						end						
					end
					
					if nHistoryPos then
                    	sLine = _tHistory[nHistoryPos]
                    	nPos = string.len( sLine ) 
                    else
						sLine = ""
						nPos = 0
					end
					redraw()
                end
			elseif param == keys.backspace then
				-- Backspace
				if nPos > 0 then
					redraw(" ");
					sLine = string.sub( sLine, 1, nPos - 1 ) .. string.sub( sLine, nPos + 1 )
					nPos = nPos - 1					
					redraw()
				end
			elseif param == keys.home then
				-- Home
				nPos = 0
				redraw()		
			elseif param == keys.delete then
				if nPos < string.len(sLine) then
					redraw(" ");
					sLine = string.sub( sLine, 1, nPos ) .. string.sub( sLine, nPos + 2 )				
					redraw()
				end
			elseif param == keys["end"] then
				-- End
				nPos = string.len(sLine)
				redraw()
			end
		elseif sEvent == "redraw" then
			redraw()
		elseif sEvent == "return" then
			term.setCursorBlink( false )
			return sLine
		end
	end
	
	term.setCursorBlink( false )
	
	return sLine
end

-- end modified read

local function printC(posX,posY,textCol,backCol,text)
	term.setCursorPos(posX,posY)
	term.setTextColor(colors[textCol] or textCol)
	term.setBackgroundColor(colors[backCol] or backCol)
	term.write(text)
end

local function InputBox(title)
	local boxW,boxH = 26,3
	local termX,termY = term.getSize()
	local ofsX,ofsY = math.ceil((termX/2) - (boxW/2)) , math.ceil((termY/2) - (boxH/2)) -- offset from top left
	local options = {"ok","cancel"}
	
	local selected = 1
	local space = 0
	local range = {}
	for i = 1,#options do
		range[i] = {s = space,f = space + string.len(options[i])}
		space = space + string.len(options[i])+3
	end
	local ofC = (boxW/2) - (space/2)
	
	local function drawBox()
		printC(ofsX,ofsY,colors.black,colors.blue,string.rep(" ",boxW))
		printC(ofsX+1,ofsY,colors.black,colors.blue,(title or "User Input"))
		printC(ofsX,ofsY+1,colors.black,colors.white,string.rep(" ",boxW))
		printC(ofsX,ofsY+2,colors.black,colors.white,string.rep(" ",boxW))
		printC(ofsX,ofsY+3,colors.black,colors.white,string.rep(" ",boxW))
		
		for i = 1,#options do
			if i == selected then
				term.setBackgroundColor(colors.lightGray)
				term.setCursorPos(range[i].s + ofC + ofsX - 1,ofsY + 3)
				term.write("["..options[i].."]")
				term.setBackgroundColor(colors.white)
				term.write(" ")
			else
				term.setCursorPos(range[i].s + ofC + ofsX - 1,ofsY + 3)
				term.write(" "..options[i].." ")
			end
		end
		
		printC(ofsX+2,ofsY+2,colors.black,colors.lightGray,string.rep(" ",boxW-4))
	end
	drawBox()
	term.setCursorPos(ofsX+2,ofsY+2)
	local co = coroutine.create(function() return readMOD(nil,nil,boxW - 4) end)
	while true do
		local event = {os.pullEvent()}
		if event[1] == "key" or event[1] == "char" then
			if event[2] == 28 then
				local test,data = coroutine.resume(co,"return")
				return data
			else
				coroutine.resume(co,unpack(event))
			end
		elseif event[1] == "mouse_click" then
			if event[4] == ofsY + 3 then
				for i = 1,#options do
					if event[3] >= range[i].s + ofC + ofsX - 1 and event[3] <= range[i].f + ofC + ofsX then
						if options[i] == "ok" then
							local test,data = coroutine.resume(co,"return")
							return data
						elseif options[i] == "cancel" then
							return false
						end
					end
				end
			end
		end
	end
end

local function dialogBox(title,message,options, h, w)
	term.setCursorBlink(false)
	local selected = 1
	title = title or ""
	message = message or ""
	options = options or {}
	local boxW,boxH = (w or 26), (h or 3)
	local termX,termY = term.getSize()
	local ofsX,ofsY = math.ceil((termX/2) - (boxW/2)) , math.ceil((termY/2) - (boxH/2)) -- offset from top left
	
	local space = 0
	local range = {}
	for i = 1,#options do
		range[i] = {s = space,f = space + string.len(options[i])}
		space = space + string.len(options[i])+3
	end
	local ofC = math.ceil((boxW/2)) - math.ceil((space/2))
	
	local function drawBox()
		printC(ofsX,ofsY,dialogTitle.txt,dialogTitle.back," "..title..string.rep(" ",boxW-#title-5).."_[]")
		term.setBackgroundColor(colors.red)
		term.setTextColor(colors.white)
		term.write("X")
		printC(ofsX,ofsY+1,dialogWindo.txt,dialogWindo.back,string.sub(" "..message..string.rep(" ",boxW),1,boxW))
		term.setCursorPos(ofsX,ofsY+2)
		term.write(string.rep(" ",boxW))
		term.setCursorPos(ofsX,ofsY+3)
		term.write(string.rep(" ",boxW))
		for i = 1,#options do
			if i == selected then
				printC(range[i].s + ofC + ofsX - 1,ofsY + 3,"black","lightGray","["..options[i].."]")
				term.setBackgroundColor(dialogWindo.back)
				term.setTextColor(dialogWindo.txt)
				term.write(" ")
			else
				term.setCursorPos(range[i].s + ofC + ofsX - 1,ofsY + 3)
				term.write(" "..options[i].." ")
			end
		end
		term.setCursorPos(ofsX + ofC + space,ofsY + 3)
		term.write(string.rep(" ",boxW - (ofC + space)))
		term.setBackgroundColor(colors.black)
		term.setTextColor(colors.white)			
	end
	while true do
		drawBox()
		event = {os.pullEvent()}
		if event[1] == "key" then
			if event[2] == 203 then -- left
				selected = selected - 1
				if selected < 1 then
					selected = #options
				end
			elseif event[2] == 205 then -- right
				selected = selected + 1
				if selected > #options then
					selected = 1
				end
			elseif event[2] == 28 then -- enter
				return selected , options[selected]
			end
		elseif event[1] == "mouse_click" then
			
			if bugTest then term.write("M "..event[2].." X "..event[3].." Y "..event[4].."    ") end
			
			if event[2] == 1 then
				if event[4] == ofsY + 3 then
					for i = 1,#options do
						if event[3] >= range[i].s + ofC + ofsX - 1 and event[3] <= range[i].f + ofC + ofsX then
							return i , options[i]
						end
					end
				end
			end
		end
	end
end

local flag = true
local fSlash = "/"
local path = {dir:match("[^/]+")}
local function stringPath() -- compacted this a lot
	return fSlash..table.concat(path,fSlash)
end

local function osRunSpaces(sFileLocation,...) -- getRunningProgram() ["shell"] = shell
	clear()
	if os.newThread then
		os.newThread(false,...)
	else
	local fProg,probblem = loadfile(sFileLocation)
		if fProg then
			local tEnv = {["shell"] = {}}
			setmetatable(tEnv.shell,{ __index = shell})
			tEnv.shell.getRunningProgram = function()
				return sFileLocation
			end
			setmetatable(tEnv,{ __index = _G})
			setfenv(fProg,tEnv)
			local test,probblem = pcall(fProg,...)
			if not test then
				print(probblem)
				dialogBox("ERROR",tostring(probblem),{"ok"},3,30)
			else
				return true
			end
		else
			print(probblem)
			dialogBox("ERROR",tostring(probblem),{"ok"},3,30)
		end
	end
end

local function rClickMenu(title,tList,tItem,posX,posY)

	term.setCursorBlink(false)
	local BoxTitle = title
	local choices = {}
	local termX,termY = term.getSize()
	local offX,offY
	
	local width = #BoxTitle + 2
	local hight
	
	for k,v in pairs(tList) do
		if v ~= nil then
			table.insert(choices,k)
		end
		if width < #k + 2 then
			width = #k + 2
		end
	end
	
	if #choices == 0 then
		return
	end
	
	hight = #choices + 1
	table.sort(choices)
	
	offX,offY = math.ceil((termX/2) - (width/2)),math.ceil((termY/2) - (hight/2))
	
	if posX and posY then -- offX,offY = posX,posY
		if posX >= termX - width - 1 then
			offX = termX - width - 1
		else
			offX = posX
		end
		if posY >= termY - hight then
			offY = termY - hight
		else
			offY = posY
		end
	end
	
	local function reDrawer()
		printC(offX,offY,rcmTitle.txt,rcmTitle.back," "..BoxTitle..string.rep(" ",width - #BoxTitle - 1))
		for i = 1,#choices do
			printC(offX,offY + i,rcmList.txt,rcmList.back," "..choices[i]..string.rep(" ",width - #choices[i] - 1))
		end
	end
	
	while true do
		reDrawer()
		local event = {os.pullEvent()}
		if event[1] == "mouse_click" then
			if event[2] == 1 then -- event[3] = x event[4] = y
				if event[4] > offY and event[4] < hight + offY and event[3] >= offX and event[3] < width + offX then
					--dialogBox("ERROR:",type(tList[choices[event[4] - offY]]),{"ok"})
					if type(tList[choices[event[4] - offY]]) == "function" then
						return tList[choices[event[4] - offY]](tItem)
					elseif type(tList[choices[event[4] - offY]]) == "table" then
						return rClickMenu("Options",tList[choices[event[4] - offY]],tItem,event[3],event[4])
					elseif type(tList[choices[event[4] - offY]]) == "string" then
						return osRunSpaces(
								unpack(
									fixArgs(
										tList[choices[event[4] - offY]].." \""..stringPath()..fSlash..tItem.n.."\""
									)
								)
							)
					else
						dialogBox("ERROR:","somthing up with new rMenu",{"ok"})
					end
				else
					return
				end
			elseif event[2] == 2 then
				return
			end
		end
	end
	
end

local function preferences()
	local tItem = {
		{txt = "Title Bar",it = titleBar},
		{txt = "Address Bar",it = addressBar},
		{txt = "Item Windo", it = itemWindo},
		{txt = "Title Right Click Title",it = rcmTitle},
		{txt = "Right Click Menu",it = rcmList},
		{txt = "Title Dialog Box",it = dialogTitle},
		{txt = "Dialog Box",it = dialogWindo},
		{txt = "Scroll Bar",it = scrollCol}
	}
	local topL,topR = 13,5
	local width,hight = 23,6
	local bottomL,bottomR = topL + width,topR + hight
	
	local listOffset = 0
	local sel = 1
	local otherSel = 1
	local otherItems = {}
	
	if tItem[sel] then
		for k,v in pairs(tItem[sel].it) do
			table.insert(otherItems,{txt = k,it = v})
		end
	end
	
	local function draw()
		printC(topL,topR,titleBar.txt,titleBar.back,string.sub(" Preferences "..string.rep(" ",width),1,width))
		for i = 0,12,4 do
			for a = 1,4 do
				--printC(topL + (a*12)-12 ,topR + ((i+4)/4),4,2^(a+i-1)," "..tostring(2^(a+i-1)))
				printC(topL + a-1 ,topR + ((i+4)/4),4,2^(a+i-1)," ")
			end
		end
		local sSel = " "
		for i = 1,hight - 2 do
			if i == sel - listOffset then
				sSel = ">"
			end
			if tItem[i+listOffset] then
				printC(topL + 4 ,topR + i,colors.black,colors.white,string.sub(sSel..tItem[i+listOffset].txt..string.rep(" ",width),1,width - 4))
			else
				printC(topL + 4 ,topR + i,colors.black,colors.white,sSel..string.rep(" ",width-5))
			end
			if i == sel - listOffset then
				sSel = " "
			end
		end
		term.setCursorPos(topL,topR + hight - 1)
		local loop = 1
		local length = 0
			for i = 1,#otherItems do
				if otherSel == i then
					sSel = ">"
				end
				if colors.black == otherItems[i].it or colors.gray == otherItems[i].it then
					term.setTextColor(colors.white)
				else
					term.setTextColor(colors.black)
				end
				term.setBackgroundColor(otherItems[i].it)
				term.write(sSel..tostring(otherItems[i].txt).." ")
				length = length + #otherItems[i].txt + 2
				if otherSel == i then
					sSel = " "
				end
				loop = loop+1
			end
		term.setBackgroundColor(colors.white)
		term.write(string.rep(" ",width - length))
	end
	while true do
		draw()
		local event = {os.pullEvent()}
		if event[1] == "mouse_click" and event[2] == 1 then
			if inBouwndry(event[3],event[4],topL,topR,width,hight) then
				local inSideX,inSideY = event[3] - topL,event[4] - topR
				if inBouwndry(inSideX+1,inSideY,1,1,4,4) and tItem[sel] then
					--[[
					term.setCursorPos(1,1)
					term.setBackgroundColor(2^(inSideX + ((inSideY*4)-4)))
					print(2^(inSideX + ((inSideY*4)-4))," ",inSideX + ((inSideY*4)-4),"     ")
					]]--
					tItem[sel]["it"][otherItems[otherSel].txt] = (2^(inSideX + ((inSideY*4)-4)))
				end
			end
		elseif event[1] == "key" then
			if event[2] == 200 then
				sel = sel - 1
			elseif event[2] == 208 then
				sel = sel + 1
			elseif event[2] == 203 then
				otherSel = otherSel - 1
			elseif event[2] == 205 then
				otherSel = otherSel + 1
			elseif event[2] == 28 then
				if dialogBox("Confirm","Save prefrences?",{"Yes","No"}) == 1 then
					saveCFG(true)
				end
				return
			end
		end
		if sel < 1 then
			sel = 1
		elseif sel > #tItem then
			sel = #tItem
		end
		if sel > listOffset + hight - 2 then
			listOffset = listOffset + 1
		elseif sel - listOffset < 1 then
			listOffset = listOffset - 1
		end
		
		otherItems = {}
		if tItem[sel] then
			for k,v in pairs(tItem[sel].it) do
				table.insert(otherItems,{txt = k,it = v})
			end
		end
		
		if otherSel < 1 then
			otherSel = 1
		elseif otherSel > #otherItems then
			otherSel = #otherItems
		end
		
		if bugTest then
			term.setBackgroundColor(colors.black)
			term.setTextColor(colors.white)
			term.setCursorPos(1,1)
			term.clearLine()
			term.write("sel "..sel.." offset "..listOffset)
		end
	end
end

local function fileSelect(mode) -- save_file open_file browse < not yet implemented
	
	local title = sTitle.." "..ver
	local bRun = true
	local clipboard = nil
	local cut = false
	
	local termX,termY = term.getSize()
	local offsetX,offsetY = 1,1
	local hight,width = math.ceil(termY-2),math.ceil(termX-2)
	local oldHight,oldWidth
	
	-- offsets
	local boxOffX,boxOffY = offsetX,offsetY + 2
	local boxH,boxW = hight - 2 ,width - 2
	
	local barX,barY = offsetX + 1,offsetY + 2
	local barH,barW = 1,width - 1
	
	local tbarX,tbarY = offsetX + 1,offsetY + 1
	local tbarH,tbarW = 1,width - 1
	
	local exitX,exitY = offsetX + width - 1 ,offsetY + 1
	
	local pading = string.rep(" ",boxW)
	local list
	
	local listOff = 0
	
	local sPath
	local tItemList = {}
	
	local function newList()
		listOff = 0
		flag = true
		tItemList = {{n = "..", id = "back"}} -- adds a back item at top of list
		sPath = stringPath()
		local folders = {}
		local files = {}
		local disks = {}
		if not fs.exists(sPath) then
			path = {}
			sPath = stringPath()
			dialogBox("ERROR:","Path no longer exists",{"ok"})
		end
		local test,list = pcall(fs.list,sPath) -- stopes fs.list crash
		if list == nil then
			list = {}
			dialogBox("ERROR : ","fs.list crashed",{"ok"})
		end
		if #path == 0 then
			for i,v in pairs(rs.getSides()) do
				if disk.isPresent(v) then
					if disk.hasData(v) then
						table.insert(tItemList,{n = disk.getMountPath(v), id = "disk",s = v})
						disks[disk.getMountPath(v)] = true
					elseif disk.hasAudio(v) then
						table.insert(tItemList,{n = disk.getAudioTitle(v), id = "audio",s = v})
					end
				end
			end
		end
		for i,v in pairs(list) do
			if fs.isDir(sPath..fSlash..v) then
				table.insert(folders,v)
			else
				table.insert(files,v)
			end
		end
		table.sort(folders)
		table.sort(files)
		for i,v in pairs(folders) do
			if disks[v] == nil then
				table.insert(tItemList,{n = v, id = "folder"})
			end
		end
		for i,v in pairs(files) do
			table.insert(tItemList,{n = v, id = "file"})
		end
	end
	
	local function paste()
		if cut then
			local s, m = pcall(
				function()
					fs.move(clipboard[1]..fSlash..clipboard[2], stringPath()..fSlash..clipboard[2])
					cut = false
					clipboard = nil
				end)
			if not s then
				dialogBox("Error", (m or "Couldn't move"), {"ok"}, 4, 30)
			end
			if bugTest then
				local x, y = term.getCursorPos()
				term.setCursorPos(1, ({term.getSize()})[2])
				write("from "..clipboard[1]..fSlash..clipboard[2].." to "..stringPath()..fSlash..clipboard[2])
			end
		else
			local s, m = pcall(function()
				if fs.exists(stringPath()..fSlash..clipboard[2]) then
					fs.copy(clipboard[1]..fSlash..clipboard[2], stringPath()..fSlash.."copy-"..clipboard[2])
				else
					fs.copy(clipboard[1]..fSlash..clipboard[2], stringPath()..fSlash..clipboard[2])
				end
			end)
			if not s then
				dialogBox("Error", (m or "Couldn't copy"), {"ok"}, 4, 30)
			end
			if bugTest then
				local x, y = term.getCursorPos()
				term.setCursorPos(1, ({term.getSize()})[2])
				write("from "..clipboard[1]..fSlash..clipboard[2].." to "..stringPath()..fSlash..clipboard[2])
			end
		end
		newList()
	end
	
	-- this section bellow handles the right click menu
	
	local tmenu = {
		disk = {
			["Open"] = function(tItem)
				table.insert(path,tItem.n)
				newList()
			end,
			["Copy"] = function(tItem)
				clipboard = {stringPath(), tItem.n}
				cut = false
			end,
			["Eject"] = function(tItem)
				if dialogBox("Confirm","Eject "..fSlash..tItem.n.." "..tItem.s,{"yes","no"}) == 1 then
					disk.eject(tItem.s)
					newList()
				end
			end,
			["ID label"] = function(tItem)
				dialogBox("ID label",disk.getDiskID(tItem.s).." "..tostring(disk.getLabel(tItem.s)),{"ok"})
			end,
			["Set label"] = function(tItem)
				local name = InputBox("Label?")
				if name then
					disk.setLabel(tItem.s,name)
				end
			end,
			["Clear label"] = function(tItem)
				if dialogBox("Confirm","Cleal Label from "..tItem.s,{"yes","no"}) == 1 then
					disk.setLabel(tItem.s)
				end
			end
		},
		folder = {
			["Open"] = function(temp)
				table.insert(path,temp.n)
				newList()
			end,
			["Copy"] = function(tItem)
				clipboard = {stringPath(), tItem.n}
				cut = false
			end,
			["Cut"] = function(tItem)
				clipboard = {stringPath(), tItem.n}
				cut = true
			end,
			["Delete"] = function(tItem)
				if dialogBox("Confirm","Delete "..tItem.id.." "..tItem.n,{"yes","no"}) == 1 then
					if fs.isReadOnly(stringPath()..fSlash..tItem.n) then
						dialogBox("ERROR",tItem.id.." Is read Only",{"ok"})
					else
						fs.delete(stringPath()..fSlash..tItem.n)
						newList()
					end
				end
			end,
			["Rename"] = function(tItem)
				local sName = InputBox("New Name")
				if type(sName) == "string" and sName ~= "" then
					local s, m = pcall(function()
						fs.move(stringPath()..fSlash..tItem.n,stringPath()..fSlash..sName)
					end)
					if not s then
						dialogBox("Error", (m or "Rename failed"), {"ok"})
					end
				end
				newList()
			end
		},
		file = {
			["Run"] = {
				["Run"] = function(tItem)
					osRunSpaces(stringPath()..fSlash..tItem.n)
				end,
				["Run CMD"] = function(tItem)
					local cmd = InputBox("Commands")
					if cmd then
						osRunSpaces(stringPath()..fSlash..tItem.n,unpack(fixArgs(cmd)))
					end
				end,
			},
			["Open With"] = customLaunch,
			["Rename"] = function(tItem)
				local sName = InputBox("New Name")
				if type(sName) == "string" and sName ~= "" then
					local s, m = pcall(function()
						fs.move(stringPath()..fSlash..tItem.n,stringPath()..fSlash..sName)
					end)
					if not s then
						dialogBox("Error", (m or "Rename failed"), {"ok"})
					end
				end
				newList()
			end,
			["Delete"] = function(tItem)
				if dialogBox("Confirm","Delete "..tItem.id.." "..tItem.n,{"yes","no"}) == 1 then
					if fs.isReadOnly(stringPath()..fSlash..tItem.n) then
						dialogBox("ERROR",tItem.id.." Is read Only",{"ok"})
					else
						fs.delete(stringPath()..fSlash..tItem.n)
						newList()
					end
				end
			end,
			["Cut"] = function(tItem)
				clipboard = {stringPath(), tItem.n}
				cut = true
			end,
			["Copy"] = function(tItem)
				clipboard = {stringPath(), tItem.n}
				cut = false
			end
		},
		audio = {
			["Play"] = 1,
			["Eject"] = 1
		},
		back = {
		},
		blank = { -- tmenu.blank.Paste = 
			["Paste"] = nil,
			["New File"] = function()
				local name = InputBox()
				if name then
					if fs.exists(stringPath()..fSlash..name) then
						dialogBox("ERROR","Name exists",{"ok"})
					else
						local file = fs.open(stringPath()..fSlash..name,"w")
						if file then
							file.write("")
							file.close()
							newList()
						else
							dialogBox("ERROR","File not created",{"ok"})
						end
					end
				end
			end,
			["New Folder"] = function()
				local name = InputBox()
				if name then
					if fs.exists(stringPath()..fSlash..name) then
						dialogBox("ERROR","Name exists",{"ok"})
					else
						if pcall(fs.makeDir,stringPath()..fSlash..name) then
							newList()
						else
							dialogBox("ERROR","Access Denied",{"ok"})
						end
					end
				end
			end,
			["Preferences"] = preferences
		},
	}
	
	-- end right click menu
	
	local function scrollBar(posX,posY)
		if posX == boxOffX+boxW+1 and posY > boxOffY and posY <= boxOffY+boxH then
			if #tItemList > boxH then
				if posY == boxOffY + 1 then
					listOff = 0
				elseif posY == boxOffY+boxH then
					listOff = #tItemList + 1 - boxH
				else
					listOff = math.ceil((posY - boxOffY - 1 )*(((#tItemList - boxH+2)/boxH)))
				end
				flag = true
			end
		end
	end
	
	newList()
	
	while bRun do
		if flag then
			flag = false
			-- clear
			if oldHight ~= hight and oldWidth ~= width then
				term.setBackgroundColor(colors.black)
				term.clear()
				oldHight,oldWidth = hight,width
			end
			-- draw top title bar
			local b = tbarW - #title -2
			if b < 0 then
				b = 0
			end
			printC(tbarX,tbarY,titleBar.txt,titleBar.back,string.sub(" "..title,1,tbarW)..string.rep(" ",b))
			term.setTextColor(colors.white)
			term.setBackgroundColor(colors.red)
			term.write("X")
			
			-- draw location bar
			local a = barW - #sPath - 1
			if a < 0 then
				a = 0
			end
			local tmppath = sPath
			if shell and shell.getDisplayName then
				tmppath = shell.getDisplayName(sPath)
				--dialogBox("yay")
			else
				--dialogBox("moop")
			end
			tmppath = tmppath or sPath
			local a = barW - #tmppath - 1
			if a < 0 then
				a = 0
			end
			printC(barX,barY,addressBar.txt,addressBar.back,string.sub(" "..tmppath,1,barW)..string.rep(" ",a))
			
			-- draw scroll bar
			if #tItemList > boxH then
				term.setBackgroundColor(scrollCol.back)
				for i = 1,boxH do
					term.setCursorPos(boxOffX+boxW+1,i + boxOffY)
					local scroll = math.floor( boxH* (listOff/(#tItemList-boxH+2)) )+1
					if i == scroll then
						term.setBackgroundColor(scrollCol.button)
						term.write(" ")
						term.setBackgroundColor(scrollCol.back)
					else
						term.write(" ")
					end
				end
			else
				term.setBackgroundColor(scrollCol.off)
				for i = 1,boxH do
					term.setCursorPos(boxOffX+boxW+1,i + boxOffY)
					term.write(" ")
				end
			end
			
			-- draw main section

			for i = 1,boxH do -- listOff
				local sel = i+listOff
				if tItemList[sel] then
					printC(1+boxOffX,i+boxOffY,(tIcons[tItemList[sel].id].tCol or itemWindo.txt),(tIcons[tItemList[sel].id].bCol or itemWindo.back),( tIcons[tItemList[sel].id].txt or "   "))
					printC(4+boxOffX,i+boxOffY,itemWindo.txt,itemWindo.back,string.sub(" "..tItemList[sel].n..pading,1,boxW-3))
				else
					printC(1+boxOffX,i+boxOffY,itemWindo.txt,itemWindo.back,pading)
				end
			end
			
			if bugTest then
				printC(1,1,"black","white",listOff.." "..boxOffY.." "..boxH)
			end
			
		end
		
		-- react to events
		local event = {os.pullEvent()}
		
		if event[1] == "mouse_click" then
			if inBouwndry(event[3],event[4],boxOffX+1,boxOffY+1,boxW,boxH) then
				local selected = tItemList[event[4]+listOff-boxOffY]
				if selected and inBouwndry(event[3],event[4],boxOffX+1,event[4],#selected.n + 4,1) then
					if event[2] == 1 then -- left mouse
						if selected.id == "back" then
							table.remove(path,#path)
							newList()
						elseif selected.id == "folder" or selected.id == "disk" then
							table.insert(path,selected.n)
							newList()
						elseif selected.id == "file" then
							if dialogBox("Run file ?",selected.n,{"yes","no"}) == 1 then
								osRunSpaces(stringPath()..fSlash..selected.n)
							end
						flag = true
						end
					elseif event[2] == 2 then -- right mouse
						rClickMenu("Options",tmenu[selected.id],selected,event[3],event[4])
						flag = true
					end
				elseif event[2] == 2 then -- right clicking not on object
					if clipboard then
						tmenu.blank.Paste = paste
					else
						tmenu.blank.Paste = nil
					end
					rClickMenu("Options",tmenu["blank"],selected,event[3],event[4])
					flag = true
				end
			elseif event[2] == 1 and event[3] == exitX and event[4] == exitY then
				if dialogBox("Confirm","Exit application",{"yes","no"}) == 1 then
					bRun = false
				end
				flag = true
			elseif event[2] == 1 then
				scrollBar(event[3],event[4])
			end
		elseif event[1] == "mouse_scroll" then -- flag this needs new math
			local old = listOff
			listOff = listOff + event[2]
			if listOff < 0 then
				listOff = 0
			end
			if #tItemList + 1 - boxH > 0 and listOff > #tItemList + 1 - boxH then
				listOff = #tItemList + 1 - boxH
			elseif listOff > 0 and #tItemList + 1 - boxH < 0 then
				listOff = 0
			end
			if listOff ~= old then
				flag = true
			end
		
		elseif event[1] == "mouse_drag" then -- scroll bar
			scrollBar(event[3],event[4])
		elseif event[1] == "disk" or event[1] == "disk_eject" then
			newList()
		elseif event[1] == "window_resize" then
			termX,termY = term.getSize()
			offsetX,offsetY = 1,1
			hight,width = math.ceil(termY-2),math.ceil(termX-2)
			
			boxOffX,boxOffY = offsetX,offsetY + 2
			boxH,boxW = hight - 2 ,width - 2
			
			barX,barY = offsetX + 1,offsetY + 2
			barH,barW = 1,width - 1
			
			tbarX,tbarY = offsetX + 1,offsetY + 1
			tbarH,tbarW = 1,width - 1
			
			exitX,exitY = offsetX + width - 1 ,offsetY + 1
			pading = string.rep(" ",boxW)
			
			flag = true
		elseif event[1] == "redraw" then
			flag = true
		end
	end
end

local function main()
	if term.isColor() then
		clear()
		fileSelect()
		clear()
	else
		error("Not an Advanced Computer (gold) ")
	end
end

local trash = (norun or main())