data.lua

os.loadAPI("DBApi.lua")

db_path = "client_base.txt"

while true do
    cl_log_f = io.open("client_logs.txt","a")
    rednet.open("top")
    id, message = rednet.receive()
    temp = {}
    temp = string.gmatch(message, "[^ ]+")
    c = 0
    client_log = "0"
    rec_arr = {call_op = "", card_num = "", row = "", new_val = ""}
    for i in temp do
        if c == 0 then rec_arr.call_op = i
        elseif c == 1 then rec_arr.card_num = i
        elseif c == 2 then rec_arr.row = i
        elseif c == 3 then rec_arr.new_val = i
        end
        c = c + 1
    end
    confirm_atm = false
    for line in io.lines("atms_base.txt") do
        if tostring(id) == line then confirm_atm = true end
    end
    --atm is confirmed
    if confirm_atm == true then

        client_arr = DBApi.getDB(rec_arr.card_num)
        --send client info
        if rec_arr.call_op == "client" then
            rednet.send(id, client_arr)
            client_log = tostring(client_arr.name .. "'s info was send to " .. id .. " atm")
        elseif rec_arr.call_op == "edit" then
            if rec_arr.row == "balance" then
                edited_line = client_arr.num .. " " .. client_arr.name .. " " .. rec_arr.new_val .. " " .. client_arr.pass
                DBApi.editLine(db_path, tonumber(client_arr.index), tostring(edited_line))
                past_bal = client_arr.bal
                pres_bal =  rec_arr.new_val
                new_bal_log = ""

                if past_bal < pres_bal then new_bal_log = tostring("+" .. pres_bal - past_bal)
                elseif pres_bal < past_bal then new_bal_log = tostring("-" .. past_bal - pres_bal)

                end

                client_log = tostring(client_arr.num .. " bal " .. new_bal_log)
            end
        end


    --atm isn't confirmed
    elseif confirm_atm == false then
        client_log = tostring("access denied to atm " .. id)
    end


    cl_log_f:write(tostring(client_log .. "\n"))
    print(client_log)

    --io.close("atms_base.txt")
    --io.close("client_logs.txt")
end