args = { ... }

if args[1] == nil then
    io.write("Usage: auth <action>\n")
    return
end

local action = args[1]
local server = "auth.layla.mc"

function lns_lookup(hostname)
    local data = {
        ["action"] = "lookup",
        ["hostname"] = hostname
    }

    rednet.send(lns_server_id, data)

    while true do
        id, msg = rednet.receive()
        if id == lns_server_id then
            if msg == nil then
                return nil
            else
                return msg
            end
        end
    end
end


auth_server_id = lns_lookup(server)

if action == "login" then
    io.write("Username: ")
    local username = io.read()
    io.write("Password: ")
    local password = io.read("*")

    local data = {
        ["action"] = "login",
        ["username"] = username,
        ["password"] = password
    }

    rednet.send(auth_server_id, data)

    while true do
        id, msg = rednet.receive()
        if id == auth_server_id then
            if msg == "invalid request" then
                io.write("Invalid request\n")
                return
            elseif msg == "user not found" then
                io.write("User not found\n")
                return
            elseif msg == "invalid password" then
                io.write("Invalid password\n")
                return
            else
                token = msg
                break
            end
        end
    end

    io.write("Logged in as " .. username .. "\n")
    io.write("Token: " .. token .. "\n")
    return
end