startup

os.pullEvent = os.pullEventRaw
print("Booting!")
shell.run("set shell.allow_disk_startup false")
modem = peripheral.wrap("right")
hopper = peripheral.wrap("left")
Disp = peripheral.wrap("botttom")
CashItem = "Emerald" --The inventory name
CashName = "minecraft:emerald"
ServerAdress = 3 --IMPORTANT: MUST BE CORRECT!

--if Disp.getItemDetail(9) == nil then
--    print("ATM OUT OF SERVICE! [EMPTY]")
--    sleep(10)
--    os.reboot()
--elseif Disp.getItemDetail(9).count < 10 then
--    print("ATM OUT OF SERVICE! [LOW]")
--    sleep(10)
--    os.reboot()
--end
function ALERT(T)
    term.setBackgroundColor(colors.black)
    term.setTextColor(colors.red)
    term.setCursorPos(1,1)
    print(T)
    sleep(5)
    os.reboot()
end
function COMS(adress,command,clientID)
    term.clear()
    term.setCursorPos(1,1)
    if command == "Deposit" then
--        if Disp.getItemDetail(9).count == Disp.getItemLimit(9) then
--            print("Failed to allocate inventory")
--        else
        print("Please insert 10"..CashItem)
        while true do
            if hopper.getItemDetail(1) == nil then
                sleep(2)
            elseif hopper.getItemDetail(1).name == CashName and hopper.getItemDetail(1).count == 10 then
                hopper.pushItems("bottom",1)
                sleep(0.5)
                print("Wait...")
                break
            end
--        end
        end
    end
    --Commands: Withdraw, Deposit, Balance
    print("Contacting server!")
    rednet.open("right")
    rednet.send(adress,"proof?")
    while true do
        RIX,MSG = rednet.receive(10)
        if RIX == adress or MSG == nil or MSG == "FAIL" then
            break
        end
    end
    print("Verified Server")
    if MSG == nil or MSG == "FAIL" then
        ALERT("Failed to communicate with server!")
    elseif string.upper(MSG) == string.upper(adress) then
        rednet.send(RIX,command)
        RXID,MSG = rednet.receive(10)
        if RXID == RIX and MSG == "Client?" then
            print("Protocall OK")
            sleep(0.2)
            rednet.send(adress,clientID)
            while true do
                RXID, MSG = rednet.receive(10)
                if RXID == adress then
                    print("DONE!")
                    sleep(0.2)
                    if command == "Withdraw" then
                        if MSG == "ok" then
                            print("Dispensing...")
                            rs.setOutput("bottom",false)
                            for i=1,10 do
                                print(i.."/10")
                                rs.setOutput("bottom",true)
                                sleep(0.1)
                                rs.setOutput("bottom",false)
                                sleep(0.1)
                            end
                            sleep(5)
                            ALERT("TRANSACTION COMPLETED!")
                        else
                            ALERT("ERROR",MSG)
                        end
                    elseif command == "Deposit" then
                        if MSG == "ok" then
                            ALERT("TRANSACTION COMPLETED!")
                        else
                            ALERT("ERROR",MSG)
                        end
                    elseif command == "Bal" then
                        ALERT(MSG)
                    end
                elseif MSG == nil then
                    ALERT("Failed to hold communication with server")
                end
            end
        elseif MSG == nil then
            ALERT("Lost communication with server!")
        else
            ALERT("Faild to verify server! [stage 2]")
        end
    else
        ALERT("Failed to verify server!")
    end
end
nOp = 1
while true do
term.clear()
term.setCursorPos(1,1)
print("Aio Terminal for Money (ATM)")
print("")
print("Version 1.0")
print("")
print("ATTENTION!")
print("Withdrawals and/or deposits ocurr at own risk!")
print("")
print(os.date())
print("")
if nOp == 1 then
    print("Withdraw     <<")
    print("Deposit        ")
    print("See balance    ")
elseif nOp == 2 then
    print("Withdraw       ")
    print("Deposit      <<")
    print("See balance    ")
elseif nOp == 3 then
    print("Withdraw       ")
    print("Deposit        ")
    print("See balance  <<")
end
E,K = os.pullEvent("key")
if K == keys.up then
    if nOp == 1 then
        nOp = 2
    else
        nOp = nOp - 1
    end
elseif K == keys.down then
    if nOp == 3 then
        nOp = 1
    else
        nOp = nOp + 1
    end
elseif K == keys.enter then
    print("Please enter your username")
    USRN = read()
    print("Please enter your PIN")
    UPIN = read("*")
    term.setBackgroundColor(colors.lightGray)
    term.clear()
    term.setCursorPos(1,1)
    print("WELCOME",USRN)
    print("Please wait..")
    sleep(0.5)
    print("Starting communications with server!")
    if nOp == 1 then
        COMS(ServerAdress,"Withdraw",USRN..UPIN)
    elseif nOp == 2 then
        COMS(ServerAdress,"Deposit",USRN..UPIN)
    else
        COMS(ServerAdress,"Bal",USRN..UPIN)
    end
    break
end
end
term.clear()
term.setBackgroundColor(colors.black)
term.setCursorPos(1,1)
textutils.slowPrint("Thank you for using ATM!")
sleep(0.1)
os.reboot()