#!/usr/bin/env elixir

# Reproducer: unpack the extracted ISO87B message hex from logs and print debug logs
Code.prepend_path("lib")

require Logger
Logger.configure(level: :debug)
alias DaProductApp.MercuryISO8583.Packagers.ISO87BPackager

# Hex from logs (message data as hex)
hex = "60007820000400703C078000C282051648549806007367400080000000000006000001231354300913310500510000078200313233343536373131323334353637383930313233343500817B226F72696744617465223A223230323530393133222C226F7269674D7469223A2230323030222C226F7269675472616365223A22303030313233222C226F72696754696D65223A22313335343330227D3738340028950500800400009F1E0832333733303030319F100706011203A0A80200063030303030311234567812345678"

binary = Base.decode16!(String.upcase(hex))

IO.puts("Message binary length: #{byte_size(binary)}")

case ISO87BPackager.unpack(ISO87BPackager.create_msg(), binary) do
  {:ok, msg} ->
    IO.puts("Unpack succeeded: ")
    IO.inspect(msg)
  {:error, reason} ->
    IO.puts("Unpack failed: #{inspect(reason)}")
end

# Ensure any runtime exceptions are visible
try do
  :ok
rescue
  e ->
    IO.puts("Exception: #{inspect(e)}")
    IO.puts(Exception.format(:error, e, __STACKTRACE__))
end