os.forceShutdown = os.shutdown

local function crash(err)
	if not sPhone then
		sPhone = {
			devMode = false,
		}
	end
	term.setCursorBlink(false)
	term.setBackgroundColor(colors.blue)
	term.clear()
	term.setCursorPos(1,1)
	term.setTextColor(colors.white)
	if not err then
		err = "Unknown"
	end
	
	print("sPhone Crash:\n")
	term.setBackgroundColor(colors.black)
	printError(err)
	term.setBackgroundColor(colors.blue)
	print("\nContact sPhone devs: GitHub: Sertex-Team/sPhone")
	print("Press any key")
	repeat
		sleep(0)
	until os.pullEvent("key")
	if not sPhone.devMode then
		os.forceShutdown()
	end
	term.setBackgroundColor(colors.black)
	term.clear()
	term.setCursorPos(1,1)
	sleep(0.1)
	shell.run("/rom/programs/shell")
end

if not pocket or not term.isColor() then
	crash("Computer not supported: use an Advanced Pocket Computer or an Advanced Wireless Pocket Computer")
end


local function kernel()
	_G.sPhone = {
		version = "Alpha 2",
		user = "Run sID",
		devMode = false,
	}
	
	if fs.exists("/.sPhone/config/username") then
		local u = fs.open("/.sPhone/config/username","r")
		sPhone.user = u.readLine()
		u.close()
	end
	
	if not fs.exists("/.sPhone/apis") then
		fs.makeDir("/.sPhone/apis")
	end
	
	for k, v in pairs(fs.list("/.sPhone/apis")) do
		os.loadAPI("/.sPhone/apis/"..v)
	end
	
	function os.version()
		return "sPhone "..sPhone.version
	end
	
	local function clear()
		term.setBackgroundColor(colors.white)
		term.clear()
		term.setCursorPos(1,1)
		term.setTextColor(colors.black)
	end
	
	sPhone.forceShutdown = os.shutdown
	sPhone.forceReboot = os.reboot
	
	function os.shutdown()
		os.pullEvent = os.pullEventRaw
		if sPhone.doneShutdown then
			clear()
			w, h = term.getSize()
			term.setCursorPos( (w/2)- 7, h/2)
			write("Press CTRL + S")
			while true do
				sleep(3600)
			end
		end
		sPhone.doneShutdown = true
		clear()
		w, h = term.getSize()
		term.setCursorPos( (w / 2) - 1, h / 2)
		for i = 1,3 do
			sleep(0.3)
			write(".")
		end
		sleep(0.2)
		sPhone.forceShutdown()
	end
	
	function os.reboot()
		os.pullEvent = os.pullEventRaw
		if sPhone.doneShutdown then
			clear()
			w, h = term.getSize()
			term.setCursorPos( (w/2)- 7, h/2)
			write("Press CTRL + R")
			while true do
				sleep(3600)
			end
		end
		sPhone.doneShutdown = true
		clear()
		w, h = term.getSize()
		term.setCursorPos( (w / 2) - 1, h / 2)
		for i = 1,3 do
			sleep(0.3)
			write(".")
		end
		sleep(0.2)
		sPhone.forceReboot()
	end
	
	function sPhone.yesNo(title, desc, hideUser)
		term.setBackgroundColor(colors.white)
		term.clear()
		term.setCursorPos(1,1)
		term.setTextColor(colors.black)
		local w, h = term.getSize()
		paintutils.drawLine(1,1,w,1, colors.gray)
		term.setTextColor(colors.white)
		term.setCursorPos(1,1)
		if not hideUser
			if not sPhone.user then
				write(" sPhone")
			else
				write(" "..sPhone.user)
			end
		end
		term.setCursorPos(1,3)
		term.setBackgroundColor(colors.white)
		term.setTextColor(colors.black)
		sertextext.center(3, "  "..title)
		if desc then
			sertextext.center(6, "  "..desc)
		end
		paintutils.drawFilledBox(3, 16, 9, 18, colors.green)
		paintutils.drawFilledBox(18, 16, 24, 18, colors.red)
		term.setTextColor(colors.white)
		term.setCursorPos(5,17)
		term.setBackgroundColor(colors.green)
		write("Yes")
		term.setCursorPos(20,17)
		term.setBackgroundColor(colors.red)
		write("No")
		while true do
			local _,_,x,y = os.pullEvent("mouse_click")
			if (x > 2 and y > 15) and (x < 10 and y < 19) then
				return true
			elseif (x > 17 and y > 15) and (x < 25 and y < 19) then
				return false
			end
		end
	end
	
	function sPhone.winOk(fmessage, smessage, bg, side, text, button)
		if not fmessage then
			fmessage = ""
		end
		if not bg then
			bg = colors.gray
		end
		if not text then
			text = colors.white
		end
		if not button then
			button = colors.lightGray
		end
		if not side then
			side = colors.lightGray
		end
		local w, h = term.getSize
		term.setBackgroundColor(side)
		paintutils.drawBox(11 - math.ceil(#fmessage / 2), 5, 16 + math.ceil(#fmessage / 2), 10, side)
		term.setBackgroundColor(bg)
		paintutils.drawFilledBox(12 - math.ceil(#fmessage / 2), 6, 15 + math.ceil(#fmessage / 2), 9, bg)
		term.setCursorPos(14 - math.ceil(#fmessage / 2), 7)
		term.setTextColor(text)
		write(fmessage)
		if smessage then
			term.setCursorPos(14 - math.ceil(#smessage / 2), 8)
			write(smessage)
		end
		term.setCursorPos(13,10)
		term.setBackgroundColor(button)
		write("Ok")
		while true do
			local e, k, x,y = os.pullEvent()
			if e == "mouse_click" then
				if y == 10 then
					if x == 13 or x == 14 then
						return
					end
				end
			elseif e == "key" then
				if k == 28 then
					return
				end
			end
		end
	end
	
	local function lChat()
		clear()
		local w, h = term.getSize()
		paintutils.drawLine(1,1,w,1,colors.gray)
		term.setTextColor(colors.white)
		sertextext.center(1,"  Chat")
		term.setBackgroundColor(colors.white)
		term.setTextColor(colors.black)
		term.setCursorPos(2, 5)
		if not peripheral.isPresent("back") or not peripheral.getType("back") == "modem" then
			print("Modem not found")
			print(" Press any key")
			os.pullEvent("key")
			return
		end
		write("Host: ")
		local h = read()
		term.setCursorPos(2,6)
		shell.run("/rom/programs/rednet/chat", "join", h, sPhone.user)
		sleep(1)
	end
	
	local function home()
		local function drawHome()
			local function box(x,y,text,bg,colorText,page)
				graphics.box(x,y,x+1+#text,y+2,bg)
				term.setCursorPos(x+1,y+1)
				term.setTextColor(colorText)
				write(text)
			end
			clear()
			local w, h = term.getSize()
			paintutils.drawLine(1,1,w,1, colors.gray)
			term.setTextColor(colors.white)
			sertextext.right(1,"vvv")
			term.setCursorPos(1,1)
			if not sPhone.newUpdate then
				write(" "..sPhone.user)
			else
				write(" New Update!")
			end
			box(2,3,"Shell",colors.black,colors.yellow)
			box(19,3,"Lock",colors.lightGray,colors.black)
			box(11,3,"sID",colors.red,colors.white)
			box(2,7,"Games",colors.pink,colors.blue)
			box(10,7,"Chat", colors.black,colors.white)
			box(19,7,"SMS",colors.green,colors.white)
			box(3, 11, "CST", colors.lightBlue, colors.blue)
			box(10, 11, "GPS", colors.red, colors.black)
			box(18, 11, "Info", colors.lightGray, colors.black)
		end
		local function footerMenu()
			sPhone.isFooterMenuOpen = true
			function redraw()
				local w, h = term.getSize()
				graphics.box(1,2,w,4,colors.gray)
				term.setTextColor(colors.white)
				term.setBackgroundColor(colors.gray)
				sertextext.right(1,"^^^")
				sertextext.right(3, "Reboot")
				term.setCursorPos(11,3)
				write("Settings")
				term.setCursorPos(2,3)
				write("Shutdown")
			end
			while true do
				redraw()
				local _,_,x,y = os.pullEvent("mouse_click")
				if y == 3 then
					if x > 1 and x < 10 then
						os.shutdown()
					elseif x > 19 and x < 26 then
						os.reboot()
					elseif x > 10 and x < 19 then
						shell.run("/.sPhone/apps/system/settings")
						drawHome()
					end
				elseif y == 1 then
					if x < 26 and x > 22 then
						sPhone.isFooterMenuOpen = false
						return
					end
				end
			end
		end
		
		while true do
			drawHome()
			term.setCursorBlink(false)
			local _,m,x,y = os.pullEvent("mouse_click")
			
			if y == 1 then
				if x < 26 and x > 22 then
					footerMenu()
				end
			else
				if (y > 2 and x > 1) and (y < 6 and x < 9) then
					term.setBackgroundColor(colors.black)
					term.clear()
					term.setCursorPos(1,1)
					term.setTextColor(colors.white)
					print("Type \"exit\" to close the shell")
					shell.run("/rom/programs/shell")
				elseif (y > 2 and x > 10) and (y < 7 and x < 16) then
					shell.run("/.sPhone/apps/system/sID")
				elseif (y > 2 and x > 18) and (y < 6 and x < 25) then
					login()
				elseif (y > 6 and x > 1) and (y < 10 and x < 9) then
					sPhone.winOk("Work In", "Progress")
				elseif (y > 6 and x > 9) and (y < 10 and x < 16) then
					lChat()
				elseif (y > 6 and x > 18) and (y < 10 and x < 24) then
					shell.run("/.sPhone/apps/sms")
				elseif (y > 10 and x > 2) and (y < 14 and x < 8) then
					shell.run("/.sPhone/apps/cstwallet")
				elseif (y > 10 and x > 9) and (y < 14 and x < 15) then
					shell.run("/.sPhone/apps/gps")
				elseif (y > 10 and x > 17) and (y < 14 and x < 24) then
					shell.run("/.sPhone/apps/system/info")
				end
			end
		end
	end
	
	function login()
		if fs.exists("/.sPhone/.password") then
			while true do
				term.clear()
				term.setCursorPos(1,1)
				paintutils.drawImage(paintutils.loadImage("/.sPhone/interfaces/login"),1,1)
				term.setTextColor(colors.white)
				term.setBackgroundColor(colors.gray)
				term.setCursorPos(1,1)
				write(" "..sPhone.user)
				if sPhone.wrongPassword then
					term.setTextColor(colors.red)
					term.setBackgroundColor(colors.white)
					sertextext.center(13,"  Wrong Password")
				end
				term.setTextColor(colors.black)
				term.setBackgroundColor(colors.white)
				sertextext.center(7,"  Insert Password")
				term.setTextColor(colors.black)
				term.setCursorBlink(true)
				term.setCursorPos(9,10)
				local _, k1 = os.pullEvent("char")
				write("*")
				term.setCursorPos(12,10)
				local _, k2 = os.pullEvent("char")
				write("*")
				term.setCursorPos(15,10)
				local _, k3 = os.pullEvent("char")
				write("*")
				term.setCursorPos(18,10)
				local _, k4 = os.pullEvent("char")
				write("*")
				term.setCursorBlink(false)
				local passwordLogin = k1..k2..k3..k4
				local fpw = fs.open("/.sPhone/.password","r")
				if sha256.sha256(passwordLogin) == fpw.readLine() then
					sPhone.wrongPassword = false
					home()
				else
					sPhone.wrongPassword = true
				end
			end
		else
			local name
			local pw
			local pwr
			local rServer
			while true do
				term.clear()
				term.setCursorPos(1,1)
				paintutils.drawImage(paintutils.loadImage("/.sPhone/interfaces/login"),1,1)
				if sPhone.wrongPassword then
					term.setTextColor(colors.red)
					sertextext.center(13,"  Wrong Password")
				end
				term.setTextColor(colors.black)
				term.setBackgroundColor(colors.white)
				sertextext.center(3,"  Setup")
				sertextext.center(7,"  Insert Password")
				term.setTextColor(colors.black)
				term.setCursorBlink(true)
				term.setCursorPos(9,10)
				local _, k1 = os.pullEvent("char")
				write("*")
				term.setCursorPos(12,10)
				local _, k2 = os.pullEvent("char")
				write("*")
				term.setCursorPos(15,10)
				local _, k3 = os.pullEvent("char")
				write("*")
				term.setCursorPos(18,10)
				local _, k4 = os.pullEvent("char")
				write("*")
				term.setCursorBlink(false)
				local password1 = k1..k2..k3..k4
				term.clear()
				term.setCursorPos(1,1)
				paintutils.drawImage(paintutils.loadImage("/.sPhone/interfaces/login"),1,1)
				term.setTextColor(colors.black)
				term.setBackgroundColor(colors.white)
				sertextext.center(3,"  Setup")
				sertextext.center(7,"  Repeat")
				term.setTextColor(colors.black)
				term.setCursorBlink(true)
				term.setCursorPos(9,10)
				local _, v1 = os.pullEvent("char")
				write("*")
				term.setCursorPos(12,10)
				local _, v2 = os.pullEvent("char")
				write("*")
				term.setCursorPos(15,10)
				local _, v3 = os.pullEvent("char")
				write("*")
				term.setCursorPos(18,10)
				local _, v4 = os.pullEvent("char")
				write("*")
				term.setCursorBlink(false)
				local password2 = v1..v2..v3..v4
				if password1 == password2 then
					local f = fs.open("/.sPhone/.password", "w")
					f.write(sha256.sha256(password1))
					f.close()
					term.setTextColor(colors.lime)
					sertextext.center(13,"  Password set!")
					sleep(2)
					break
				else
					sPhone.wrongPassword = true
				end
			end
			
			term.setBackgroundColor(colors.white)
			term.clear()
			term.setCursorPos(1,1)
			local w, h = term.getSize()
			paintutils.drawLine(1,1,w,1,colors.gray)
			term.setTextColor(colors.black)
			term.setBackgroundColor(colors.white)
			sertextext.center(3,"  Setup Sertex ID")
			local isDown = http.get("http://sertex.esy.es/status.php").readAll()
			if isDown ~= "true" then
				sertextext.center(5, "  The server is down")
				sertextext.center(6, "  Run sID on the home")
				name = "Run sID"
				sleep(2)
			else

				local choose = sPhone.yesNo("Setup Sertex ID", "Do you have a Sertex ID?", true)
				if not choose then
					term.setBackgroundColor(colors.white)
					term.clear()
					term.setCursorPos(1,1)
					local w, h = term.getSize()
					paintutils.drawLine(1,1,w,1,colors.gray)
					term.setTextColor(colors.black)
					term.setBackgroundColor(colors.white)
					sertextext.center(3,"  Setup Sertex ID")
					sertextext.center(7,"  Your Username")
					term.setCursorPos(3,8)
					name = read()
					while true do
						sertextext.center(9, "  Your Password")
						term.setCursorPos(3,10)
						term.clearLine()
						pw = read("*")
						sertextext.center(11, "  Repeat")
						term.setCursorPos(3,12)
						term.clearLine()
						pwr = read("*")
						if pw == pwr then
							break
						else
							print("   Wrong Password")
							sleep(1)
						end
					end
					local rServer = http.post("http://sertex.esy.es/register.php", "user="..name.."&password="..pw).readAll()
					if rServer ~= "Success!" then
						print("Username already exists")
						print("Retry later in the app sID")
						sleep(2)
					else
						local f = fs.open("/.sPhone/config/username","w")
						f.write(name)
						f.close()
						local pwf = fs.open("/.sPhone/config/.sIDPw", "w")
						pwf.write(base64.encode(pw))
						pwf.close()
					end
				else
					term.setBackgroundColor(colors.white)
					term.clear()
					term.setCursorPos(1,1)
					local w, h = term.getSize()
					paintutils.drawLine(1,1,w,1,colors.gray)
					term.setTextColor(colors.black)
					term.setBackgroundColor(colors.white)
					sertextext.center(3,"  Setup Sertex ID")
					sertextext.center(7,"  Your Username")
					term.setCursorPos(3,8)
					name = read()
					sertextext.center(9, "  Your Password")
					term.setCursorPos(3,10)
					term.clearLine()
					pw = read("*")
					sertextext.center(11, "  Checking...")
					rServer = http.post("http://sertex.esy.es/login.php", "user="..name.."&password="..pw).readAll()
						if rServer ~= "true" then
						print("   Wrong Username/Password")
						print("   Run sID")
						sleep(2)
					else
						f = fs.open("/.sPhone/config/username", "w")
						f.write(name)
						f.close()
						f = fs.open("/.sPhone/config/.sIDpw", "w")
						f.write(base64.encode(pw))
						f.close()
					end
				end
			end
			term.setCursorPos(1,13)
			term.clearLine()
			sertextext.center(13,"  All Set!")
			term.setCursorPos(1,14)
			term.clearLine()
			sertextext.center(14,"  Have fun with sPhone")
			sPhone.user = name
			sleep(2)
			home()
		end
	end
	
	local newVersion = http.get("https://raw.githubusercontent.com/Sertex-Team/sPhone/master/src/version").readAll()
	if newVersion ~= sPhone.version then
		sPhone.newUpdate = true
	else
		sPhone.newUpdate = false
	end
	
	login()

end

if sPhone then
	printError("sPhone already started")
	return
end
os.oldPullEvent = os.pullEvent
os.pullEvent = os.pullEventRaw

local ok, error = pcall(kernel)

if not ok then
	crash(error)
end

os.forceShutdown()