v2Chat

local serverID = 39

if fs.exists("emui/data/server.txt") then
    local file = fs.open("emui/data/server.txt", "r")
    serverID = tonumber(file.readLine())
    file.close()
end

if not fs.exists("emui/data/session.txt") then
    return
end

local file = fs.open("emui/data/session.txt", "r")
user = file.readLine()
file.close()

while true do
    term.setCursorPos(1,1)
    term.clear()
    if os.clock() > 300 then
        print("Session expired. Please log in again.")
        os.sleep(1)
        os.reboot()
    end
    --- Get messages
    rednet.send(serverID, "4")
    id, msg = rednet.receive()
    if id ~= serverID then
        return
    end
    local messages = textutils.unserialize(msg)
    for i = 1, #messages do
        print(messages[i])
    end
    print("Send a message? 'exit' to quit")
    write("> ")
    local message = read()
    if message == "exit" then
        return
    end
    rednet.send(serverID, "5:" .. user .. ":" .. message)
    os.sleep(1)
end