local w,h = term.getSize()

function fwrite(path, text)
	local file = assert(io.open(path, "w"))
	file:write(text)
	file:close()
end

local files = {
	"startup",
	"startupAlternative",
	".ccYouTube/apis/box",
	".ccYouTube/apis/extStrLib",
	".ccYouTube/apis/loadingScreen",
	".ccYouTube/logos/ccytLogo",
	".ccYouTube/logos/home",
	".opt/GUI/config._conf",
	".opt/GUI/icoDName._conf",
	".opt/GUI/icoLoc._conf",
	".opt/GUI/icoName._conf",
	".opt/GUI/icoRun._conf",
	".opt/start/bios",
	".opt/start/bootloader",
	".sys/API/kernal",
	".sys/Backgrounds/advcomp.bg",
	".sys/Backgrounds/normcomp.bg",
	".sys/GUI/desktop",
	".sys/GUI/startmenu._GUI",
	".sys/GUI/startmenuAlternative._GUI",
	".sys/Programs/ccYT.16",
	".sys/Programs/fMan.16",
	".sys/Programs/mouse.cfg",
	".sys/Programs/npp.16",
	".sys/icons/OS16.ico",
	".sys/icons/icon1.nfp",
	".sys/icons/icon2.nfp",
	".sys/icons/icon3.nfp",
	".sys/logon/usr_login",
	".var/OSver/ver.16",
	".var/Logon/uacc._acc"
}

local folders = {
	".ccYouTube",
	".ccYouTube/apis/",
	".ccYouTube/downloads/",
	".ccYouTube/logos/",
	".ccYouTube/recycleBin/",
	".opt",
	".opt/GUI/",
	".opt/start/",
	".sys/API/",
	".sys/Backgrounds/",
	".sys/GUI/",
	".sys/Programs/",
	".sys/icons/",
	".sys/logon/",
	".var",
	".var/OSver/",
	".var/Logon/"
}

local urls = {
	"http://erik0004.890m.com/cc/OS16/Alpha2.0/startup",
	"http://erik0004.890m.com/cc/OS16/Alpha2.0/startupAlternative",
	"http://erik0004.890m.com/cc/OS16/Alpha2.0/.ccYouTube/apis/box",
	"http://erik0004.890m.com/cc/OS16/Alpha2.0/.ccYouTube/apis/extStrLib",
	"http://erik0004.890m.com/cc/OS16/Alpha2.0/.ccYouTube/apis/loadingScreen",
	"http://erik0004.890m.com/cc/OS16/Alpha2.0/.ccYouTube/logos/ccytLogo",
	"http://erik0004.890m.com/cc/OS16/Alpha2.0/.ccYouTube/logos/home",
	"http://erik0004.890m.com/cc/OS16/Alpha2.0/.opt/GUI/config._conf",
	"http://erik0004.890m.com/cc/OS16/Alpha2.0/.opt/GUI/icoDName._conf",
	"http://erik0004.890m.com/cc/OS16/Alpha2.0/.opt/GUI/icoLoc._conf",
	"http://erik0004.890m.com/cc/OS16/Alpha2.0/.opt/GUI/icoName._conf",
	"http://erik0004.890m.com/cc/OS16/Alpha2.0/.opt/GUI/icoRun._conf",
	"http://erik0004.890m.com/cc/OS16/Alpha2.0/.opt/start/bios",
	"http://erik0004.890m.com/cc/OS16/Alpha2.0/.opt/start/bootloader",
	"http://erik0004.890m.com/cc/OS16/Alpha2.0/.sys/API/kernal",
	"http://erik0004.890m.com/cc/OS16/Alpha2.0/.sys/Backgrounds/advcomp.bg",
	"http://erik0004.890m.com/cc/OS16/Alpha2.0/.sys/Backgrounds/normcomp.bg",
	"http://erik0004.890m.com/cc/OS16/Alpha2.0/.sys/GUI/desktop",
	"http://erik0004.890m.com/cc/OS16/Alpha2.0/.sys/GUI/startmenu._GUI",
	"http://erik0004.890m.com/cc/OS16/Alpha2.0/.sys/GUI/startmenuAlternative._GUI",
	"http://erik0004.890m.com/cc/OS16/Alpha2.0/.sys/Programs/ccYT.16",
	"http://erik0004.890m.com/cc/OS16/Alpha2.0/.sys/Programs/fMan.16",
	"http://erik0004.890m.com/cc/OS16/Alpha2.0/.sys/Programs/mouse.cfg",
	"http://erik0004.890m.com/cc/OS16/Alpha2.0/.sys/Programs/npp.16",
	"http://erik0004.890m.com/cc/OS16/Alpha2.0/.sys/icons/OS16.ico",
	"http://erik0004.890m.com/cc/OS16/Alpha2.0/.sys/icons/icon1.nfp",
	"http://erik0004.890m.com/cc/OS16/Alpha2.0/.sys/icons/icon2.nfp",
	"http://erik0004.890m.com/cc/OS16/Alpha2.0/.sys/icons/icon3.nfp",
	"http://erik0004.890m.com/cc/OS16/Alpha2.0/.sys/logon/usr_login",
	"http://erik0004.890m.com/cc/OS16/Alpha2.0/.var/OSver/ver.16",
	"http://erik0004.890m.com/cc/OS16/Alpha2.0/.var/Logon/uacc._acc"
}

local function startInstaller()
	if not http then
	term.setBackgroundColor(colors.black)
	term.clear()
	term.setTextColor(colors.red)
	term.setCursorPos(1,1)
	print("You need the http API to run this installer.")
	end
	if not term.isColor() or term.isColour() or term.isColor or term.isColour then
	term.setBackgroundColor(colors.black)
	term.clear()
	term.setTextColor(colors.red)
	term.setCursorPos(1,1)
	print("You need an Advanced Computer to use this OS.")
	end
	for i,v in pairs(folders) do
	if fs.exists(v) then
	term.setBackgroundColor(colors.black)
	term.clear()
	term.setTextColor(1)
	term.setCursorPos(math.floor(w-#"Found an older version of OS'16,")/2,9)
	print("Found an older version of OS'16,")
	term.setCursorPos(math.floor(w-#"deleting it...")/2,10)
	print("deleting it...")
	sleep(1)
	fs.delete(v)
	end
	end
	for i,v in pairs(files) do
	if fs.exists(v) then
	term.setBackgroundColor(colors.black)
	term.clear()
	term.setTextColor(1)
	term.setCursorPos(math.floor(w-#"Found an older version of OS'16,")/2,9)
	print("Found an older version of OS'16,")
	term.setCursorPos(math.floor(w-#"deleting it...")/2,10)
	print("deleting it...")
	sleep(1)
	fs.delete(v)
	end
	end
end

local function install()
	startInstaller()
	term.setBackgroundColor(2048)
	term.clear()
	term.setTextColor(1)
	term.setCursorPos(math.floor(w-#"OS'16 Installer")/2,1)
	print("OS'16 Installer")
	term.setCursorPos(1,2)
	print(string.rep("-",51))
	term.setCursorPos(math.floor(w-#"Installing OS'16...")/2,9)
	print("Installing OS'16...")
	term.setCursorPos(math.floor(w-#"Making the OS Folders...")/2,10)
	print("Making the OS Folders...")
	for i,v in pairs(folders) do
	fs.makeDir(v)
	end
	sleep(1)
	term.setCursorPos(math.floor(w-#"Fetching files from the download website...")/2,10)
	print("Fetching files from the download website...")
	for i,v in pairs(files) do
	dl = http.get(urls[i])
	fwrite(v, dl.readAll())
		--[[numbr = 0
		for i = 1,33 do
			term.setCursorPos(math.floor(w-#"  %")/2,11)
			print(numbr.."%")
			sleep(0.25)
			numbr = numbr+3,23
		end
	for k,v in pairs(files) do
		term.setCursorPos(math.floor(w-#"Downloading File : "..files[k])/2,11)
		print("Downloading File : "..files[k])
	end
		term.setCursorPos(math.floor(w-#"   %")/2,11)
		print("100%")]]
	end
	sleep(1)
	term.setCursorPos(1,10)
	term.setBackgroundColor(2048)
	term.clearLine()
	term.setCursorPos(math.floor(w-#"OS'16 is succesfully installed. Rebooting..")/2,9)
	print("OS'16 is succesfully installed. Rebooting..")
	if fs.exists("/install") then
	fs.delete("/install")
	sleep(2)
	os.reboot()
	else
	sleep(2)
	os.reboot()
	end
end
install()