#!/usr/bin/env python

import constants
import array

INS = 1
CNT = 4

class SmartCardEmulator:
    def getATR(self):
        return array.array('B', constants.ATR_SYSMOCOM2)

    def send_receive_cmd(self, cmd):
        if len(cmd) == 5:         # Received cmd from phone
            if cmd[INS] == 0xA4:
                resp = [cmd[INS]]       # Respond with INS byte
            elif cmd[INS] == 0xC0:
                data = [0x00, 0x00, 0x00, 0x00,
                        0x7F, 0x20, 0x02, 0x00,
                        0x00, 0x00, 0x00, 0x00,
                        0x09, 0x91, 0x00, 0x17,
                        0x04, 0x00, 0x83, 0x8A,
                        0x83, 0x8A]
                SW = [0x90, 0x00]
                resp = [cmd[INS]] + data + SW       # Respond with INS byte
                #state = WAIT_RST
            else:
                print("Unknown cmd")
                resp = [0x60, 0x00]
        elif len(cmd) == 2:
            resp = [0x9F, 0x16]
        else:
            resp = [0x60, 0x00]

        print("Cmd, resp: ")
        print("".join("%02x " % b for b in cmd))
        print("".join("%02x " % b for b in resp))

        return array.array('B', resp)

    def reset_card():
        pass

    def close(self):
        pass