cc atm

atm.lua

-- ATM Script for Computercraft

-- Open modem
local modem = peripheral.find("modem")
if not modem then
    print("No modem attached")
    return
end
modem.open(2) -- Open on channel 2, for example

-- Function to send a request to the bank server and wait for a response
local function sendBankRequest(request)
    modem.transmit(1, 2, request)  -- Transmit on bank's channel (1), reply on ATM's channel (2)
    while true do
        local event, side, senderChannel, replyChannel, message, senderDistance = os.pullEvent("modem_message")
        if senderChannel == 2 then
            return message
        end
    end
end

-- Function to handle user interactions
local function handleUser()
    print("Welcome to the ATM")
    print("Please enter your account ID:")
    local accountID = read()

    print("Choose an action:\n1. Check Balance\n2. Deposit\n3. Withdraw")
    local action = read()

    local request = {accountID = accountID}

    if action == "1" then
        -- Check balance
        request.action = "balance"
        local response = sendBankRequest(request)
        print("Your balance is: " .. response)

    elseif action == "2" then
        -- Deposit
        print("Enter deposit amount:")
        local amount = tonumber(read())
        request.action = "deposit"
        request.amount = amount
        local response = sendBankRequest(request)
        print(response)

    elseif action == "3" then
        -- Withdraw
        print("Enter withdrawal amount:")
        local amount = tonumber(read())
        request.action = "withdraw"
        request.amount = amount
        local response = sendBankRequest(request)
        print(response)

    else
        print("Invalid action selected.")
    end
end

-- Main loop
while true do
    handleUser()
end