# coding: utf-8
from __future__ import unicode_literals, print_function
from __future__ import absolute_import

from builtins import input
from builtins import next
from builtins import range
import base64
import binascii
import time
import logging
import os
import sys

from prompt_toolkit import prompt
from prompt_toolkit import Application
from prompt_toolkit.key_binding import KeyBindings
from prompt_toolkit.keys import Keys
from prompt_toolkit.filters import Condition
import ed25519

from .client import OnlyKey, Message, MessageField

only_key = OnlyKey()

def cli():

    logging.basicConfig(level=logging.DEBUG)

    # ContrlT handling
    hidden = [True]  # Nonlocal
    key_bindings = KeyBindings()

    @key_bindings.add('c-t')
    def _(event):
        ' When ControlT has been pressed, toggle visibility. '
        hidden[0] = not hidden[0]

    def prompt_pass():
        print('Type Control-T to toggle password visible.')
        password = prompt('Password/Key: ', is_password=True)
        return password

    def prompt_key():
        print('Type Control-T to toggle key visible.')
        key = prompt('Key: ', is_password=True)
        return key

    def prompt_pin():
        print('Press any key when finished entering PIN')
        return

    if len(sys.argv) > 1:
        if sys.argv[1] == 'ecc':
            # ECC subcommands

            # Create a new private key
            if sys.argv[2] == 'new':
                signing_key, _ = ed25519.create_keypair()

                with open('ecc_private.key', 'wb+') as f:
                    f.write(signing_key.to_seed())

                print('ECC private key written to ecc_private.key')

            # Load a private key to the OnlyKey
            elif sys.argv[2] == 'load':

                privkey = 'ecc_private.key'
                if len(privkey) == 4:
                    privkey = sys.argv[3]

                if not os.path.exists(privkey):
                    print('{} does not exists'.format(privkey))

                with open(privkey, 'rb') as f:
                    raw_privkey = f.read()
                    print()
                    print ('Enter ECC key slot number to use (1 - 32) or enter 0 to list key labels')
                    print()
                    slot = int(input())

                while slot == 0:
                    ok.displaykeylabels()
                    print()
                    print ('Enter ECC key slot number to use (1 - 32) or enter 0 to list key labels')
                    print()
                    slot = int(input())

                slot = slot + 100 # ECC keys in slot 101 - 132
                only_key.set_ecc_key(slot, (1+16+32+64+128), raw_privkey) #set ECC key with all features
                time.sleep(1.5)
                print(only_key.read_string())

        elif sys.argv[1] == 'settime':
            only_key.set_time(time.time())

        elif sys.argv[1] == 'init':
            while 1:
                if only_key.read_string(timeout_ms=500) != 'UNINITIALIZED':
                    break

            for msg in [Message.OKSETPIN]:
                only_key.send_message(msg=msg)
                print(only_key.read_string())
                print()
                input('Press the Enter key once you are done')
                only_key.send_message(msg=msg)
                print(only_key.read_string())
                only_key.send_message(msg=msg)
                print(only_key.read_string())
                print()
                input('Press the Enter key once you are done')
                only_key.send_message(msg=msg)
                print(only_key.read_string())
                print()

            for msg in [Message.OKSETPDPIN]:
                only_key.send_message(msg=msg)
                print(only_key.read_string() + ' for second profile')
                print()
                input('Press the Enter key once you are done')
                only_key.send_message(msg=msg)
                print(only_key.read_string() + ' for second profile')
                only_key.send_message(msg=msg)
                print(only_key.read_string())
                print()
                input('Press the Enter key once you are done')
                only_key.send_message(msg=msg)
                print(only_key.read_string())
                print()

            for msg in [Message.OKSETSDPIN]:
                only_key.send_message(msg=msg)
                print(only_key.read_string())
                print()
                input('Press the Enter key once you are done')
                only_key.send_message(msg=msg)
                print(only_key.read_string())
                only_key.send_message(msg=msg)
                print(only_key.read_string())
                print()
                input('Press the Enter key once you are done')
                only_key.send_message(msg=msg)
                print(only_key.read_string())
                print()

        elif sys.argv[1] == 'getlabels':
            tmp = {}
            for slot in only_key.getlabels():
                tmp[slot.name] = slot
            slots = iter(['1a', '1b', '2a', '2b', '3a', '3b', '4a', '4b', '5a', '5b', '6a', '6b'])
            for slot_name in slots:
                print(tmp[slot_name].to_str())
                print(tmp[next(slots)].to_str())
                print()

        elif sys.argv[1] == 'getkeylabels':
            tmp = {}
            for slot in only_key.getkeylabels():
                tmp[slot.name] = slot
            slots = iter(['RSA Key 1', 'RSA Key 2', 'RSA Key 3', 'RSA Key 4', 'ECC Key 1', 'ECC Key 2', 'ECC Key 3', 'ECC Key 4', 'ECC Key 5', 'ECC Key 6', 'ECC Key 7', 'ECC Key 8', 'ECC Key 9', 'ECC Key 10', 'ECC Key 11', 'ECC Key 12', 'ECC Key 13', 'ECC Key 14', 'ECC Key 15', 'ECC Key 16', 'ECC Key 17', 'ECC Key 18', 'ECC Key 19', 'ECC Key 20', 'ECC Key 21', 'ECC Key 22', 'ECC Key 23', 'ECC Key 24', 'ECC Key 25', 'ECC Key 26', 'ECC Key 27', 'ECC Key 28', 'ECC Key 29'])
            for slot_name in slots:
                print(tmp[slot_name].to_str())

        elif sys.argv[1] == 'setslot':
            try:
                if sys.argv[2] == '1a':
                    slot_id = 1
                elif sys.argv[2] == '2a':
                    slot_id = 2
                elif sys.argv[2] == '3a':
                    slot_id = 3
                elif sys.argv[2] == '4a':
                    slot_id = 4
                elif sys.argv[2] == '5a':
                    slot_id = 5
                elif sys.argv[2] == '6a':
                    slot_id = 6
                elif sys.argv[2] == '1b':
                    slot_id = 7
                elif sys.argv[2] == '2b':
                    slot_id = 8
                elif sys.argv[2] == '3b':
                    slot_id = 9
                elif sys.argv[2] == '4b':
                    slot_id = 10
                elif sys.argv[2] == '5b':
                    slot_id = 11
                elif sys.argv[2] == '6b':
                    slot_id = 12
                elif sys.argv[2] >= int('25'):
                    slot_id = int(sys.argv[2])
            except:
                print("setslot <id> <type> [value]")
                print("<id> must be slot number 1a - 6b")
                return

            if sys.argv[3] == 'label':
                only_key.setslot(slot_id, MessageField.LABEL, sys.argv[4])
            elif sys.argv[3] == 'ecc_key_label':
                only_key.setslot(slot_id+28, MessageField.LABEL, sys.argv[4])
            elif sys.argv[3] == 'rsa_key_label':
                only_key.setslot(slot_id+24, MessageField.LABEL, sys.argv[4])
            elif sys.argv[3] == 'url':
                only_key.setslot(slot_id, MessageField.URL, sys.argv[4])
            elif sys.argv[3] == 'add_char2':
                only_key.setslot(slot_id, MessageField.NEXTKEY1, sys.argv[4])
            elif sys.argv[3] == 'delay1':
                only_key.setslot(slot_id, MessageField.DELAY1, sys.argv[4])
            elif sys.argv[3] == 'username':
                only_key.setslot(slot_id, MessageField.USERNAME, sys.argv[4])
            elif sys.argv[3] == 'add_char3':
                only_key.setslot(slot_id, MessageField.NEXTKEY2, sys.argv[4])
            elif sys.argv[3] == 'delay2':
                only_key.setslot(slot_id, MessageField.DELAY2, sys.argv[4])
            elif sys.argv[3] == 'password':
                password = prompt_pass()
                only_key.setslot(slot_id, MessageField.PASSWORD, password)
            elif sys.argv[3] == 'add_char5':
                only_key.setslot(slot_id, MessageField.NEXTKEY3, sys.argv[4])
            elif sys.argv[3] == 'delay3':
                only_key.setslot(slot_id, MessageField.DELAY3, sys.argv[4])
            elif sys.argv[3] == '2fa':
                 only_key.setslot(slot_id, MessageField.TFATYPE, sys.argv[4])
            elif sys.argv[3] == 'gkey':
                totpkey = prompt_key()
                totpkey = base64.b32decode(totpkey)
                totpkey = binascii.hexlify(totpkey)
                # pad with zeros for even digits
                totpkey = totpkey.zfill(len(totpkey) + len(totpkey) % 2)
                payload = [int(totpkey[i: i+2], 16) for i in range(0, len(totpkey), 2)]
                only_key.setslot(slot_id, MessageField.TOTPKEY, payload)
            elif sys.argv[3] == 'totpkey':
                totpkey = prompt_key()
                only_key.setslot(slot_id, MessageField.TOTPKEY, totpkey)
            elif sys.argv[3] == 'add_char1':
                only_key.setslot(slot_id, MessageField.NEXTKEY4, sys.argv[4])
            elif sys.argv[3] == 'add_char4':
                only_key.setslot(slot_id, MessageField.NEXTKEY5, sys.argv[4])
            else:
                print("setslot <id> <type> [value]")
                print("<type> must be ['label', 'ecc_key_label', 'rsa_key_label', 'url', 'add_char1', 'delay1', 'username', 'add_char2', 'delay2', 'password', 'add_char3', 'delay3', '2fa', 'totpkey', 'add_char4', 'add_char5']")
            return

        elif sys.argv[1] == 'wipeslot':
            try:
                if sys.argv[2] == '1a':
                    slot_id = 1
                elif sys.argv[2] == '2a':
                    slot_id = 2
                elif sys.argv[2] == '3a':
                    slot_id = 3
                elif sys.argv[2] == '4a':
                    slot_id = 4
                elif sys.argv[2] == '5a':
                    slot_id = 5
                elif sys.argv[2] == '6a':
                    slot_id = 6
                elif sys.argv[2] == '1b':
                    slot_id = 7
                elif sys.argv[2] == '2b':
                    slot_id = 8
                elif sys.argv[2] == '3b':
                    slot_id = 9
                elif sys.argv[2] == '4b':
                    slot_id = 10
                elif sys.argv[2] == '5b':
                    slot_id = 11
                elif sys.argv[2] == '6b':
                    slot_id = 12
                elif sys.argv[2] >= int('25'):
                    slot_id = int(sys.argv[2])
            except:
                print("wipeslot <id>")
                print("<id> must be slot number 1a - 6b")
                return

            only_key.wipeslot(slot_id)

        elif sys.argv[1] == 'backupkey':
            only_key.generate_backup_key()

        elif sys.argv[1] == 'idletimeout':
             only_key.setslot(1, MessageField.IDLETIMEOUT, int(sys.argv[2]))
        elif sys.argv[1] == 'wipemode':
             only_key.setslot(1, MessageField.WIPEMODE, int(sys.argv[2]))
        elif sys.argv[1] == 'keytypespeed':
             only_key.setslot(1, MessageField.KEYTYPESPEED, int(sys.argv[2]))
        elif sys.argv[1] == 'led_brightness':
             only_key.setslot(1, MessageField.LEDBRIGHTNESS, int(sys.argv[2]))
        elif sys.argv[1] == '2nd_profile_mode':
             only_key.setslot(1, MessageField.SECPROFILEMODE, int(sys.argv[2]))
        elif sys.argv[1] == 'pgp_challenge_mode':
             only_key.setslot(1, MessageField.PGPCHALENGEMODE, int(sys.argv[2]))
        elif sys.argv[1] == 'ssh_challenge_mode':
             only_key.setslot(1, MessageField.SSHCHALENGEMODE, int(sys.argv[2]))
        elif sys.argv[1] == 'backup_key_mode':
             only_key.setslot(1, MessageField.BACKUPMODE, int(sys.argv[2]))
        elif sys.argv[1] == 'keylayout':
             only_key.setslot(1, MessageField.KEYLAYOUT, int(sys.argv[2]))

        elif sys.argv[1]:
            print('Command not found')
            print()

    else:

        # Print help.
        print('OnlyKey CLI v0.6')
        print('Control-D to exit.')
        print()

        def mprompt():
            return prompt('OnlyKey> ')

        nexte = mprompt

        while 1:
            print()
            raw = nexte()
            print()
            data = raw.split()
            # nexte = prompt_pass
            if data[0] == "settime":
                only_key.set_time(time.time())
            if data[0] == "init":
                while 1:
                    if only_key.read_string(timeout_ms=500) != 'UNINITIALIZED':
                        break

                for msg in [Message.OKSETPIN]:
                    only_key.send_message(msg=msg)
                    print(only_key.read_string())
                    print()
                    input('Press the Enter key once you are done')
                    only_key.send_message(msg=msg)
                    print(only_key.read_string())
                    only_key.send_message(msg=msg)
                    print(only_key.read_string())
                    print()
                    input('Press the Enter key once you are done')
                    only_key.send_message(msg=msg)
                    print(only_key.read_string())
                    print()

                for msg in [Message.OKSETPDPIN]:
                    only_key.send_message(msg=msg)
                    print(only_key.read_string() + ' for second profile')
                    print()
                    input('Press the Enter key once you are done')
                    only_key.send_message(msg=msg)
                    print(only_key.read_string() + ' for second profile')
                    only_key.send_message(msg=msg)
                    print(only_key.read_string())
                    print()
                    input('Press the Enter key once you are done')
                    only_key.send_message(msg=msg)
                    print(only_key.read_string())
                    print()

                for msg in [Message.OKSETSDPIN]:
                    only_key.send_message(msg=msg)
                    print(only_key.read_string())
                    print()
                    input('Press the Enter key once you are done')
                    only_key.send_message(msg=msg)
                    print(only_key.read_string())
                    only_key.send_message(msg=msg)
                    print(only_key.read_string())
                    print()
                    input('Press the Enter key once you are done')
                    only_key.send_message(msg=msg)
                    print(only_key.read_string())
                    print()
            elif data[0] == 'getlabels':
                tmp = {}
                for slot in only_key.getlabels():
                    tmp[slot.name] = slot
                slots = iter(['1a', '1b', '2a', '2b', '3a', '3b', '4a', '4b', '5a', '5b', '6a', '6b'])
                for slot_name in slots:
                    print(tmp[slot_name].to_str())
                    print(tmp[next(slots)].to_str())
                    print()

            if data[0] == 'getkeylabels':
                tmp = {}
                for slot in only_key.getkeylabels():
                    tmp[slot.name] = slot
                slots = iter(['RSA Key 1', 'RSA Key 2', 'RSA Key 3', 'RSA Key 4', 'ECC Key 1', 'ECC Key 2', 'ECC Key 3', 'ECC Key 4', 'ECC Key 5', 'ECC Key 6', 'ECC Key 7', 'ECC Key 8', 'ECC Key 9', 'ECC Key 10', 'ECC Key 11', 'ECC Key 12', 'ECC Key 13', 'ECC Key 14', 'ECC Key 19', 'ECC Key 20', 'ECC Key 21', 'ECC Key 22', 'ECC Key 23', 'ECC Key 24', 'ECC Key 25', 'ECC Key 26', 'ECC Key 27', 'ECC Key 28', 'ECC Key 29'])
                for slot_name in slots:
                    print(tmp[slot_name].to_str())

            elif data[0] == 'setslot':
                try:
                    if data[1] == '1a':
                        slot_id = 1
                    elif data[1] == '2a':
                        slot_id = 2
                    elif data[1] == '3a':
                        slot_id = 3
                    elif data[1] == '4a':
                        slot_id = 4
                    elif data[1] == '5a':
                        slot_id = 5
                    elif data[1] == '6a':
                        slot_id = 6
                    elif data[1] == '1b':
                        slot_id = 7
                    elif data[1] == '2b':
                        slot_id = 8
                    elif data[1] == '3b':
                        slot_id = 9
                    elif data[1] == '4b':
                        slot_id = 10
                    elif data[1] == '5b':
                        slot_id = 11
                    elif data[1] == '6b':
                        slot_id = 12
                    elif data[1] >= int('25'):
                        slot_id = int(data[1])
                except:
                    print("setslot <id> <type> [value]")
                    print("<id> must be slot number 1a - 6b")
                    continue

                if data[2] == 'label':
                    only_key.setslot(slot_id, MessageField.LABEL, data[3])
                elif data[2] == 'ecc_key_label':
                    only_key.setslot(slot_id+28, MessageField.LABEL, data[3])
                elif data[2] == 'rsa_key_label':
                    only_key.setslot(slot_id+24, MessageField.LABEL, data[3])
                elif data[2] == 'url':
                    only_key.setslot(slot_id, MessageField.URL, data[3])
                elif data[2] == 'add_char2':
                    only_key.setslot(slot_id, MessageField.NEXTKEY1, data[3])
                elif data[2] == 'delay1':
                    only_key.setslot(slot_id, MessageField.DELAY1, data[3])
                elif data[2] == 'username':
                    only_key.setslot(slot_id, MessageField.USERNAME, data[3])
                elif data[2] == 'add_char3':
                    only_key.setslot(slot_id, MessageField.NEXTKEY2, data[3])
                elif data[2] == 'delay2':
                    only_key.setslot(slot_id, MessageField.DELAY2, data[3])
                elif data[2] == 'password':
                    password = prompt_pass()
                    only_key.setslot(slot_id, MessageField.PASSWORD, password)
                elif data[2] == 'add_char5':
                    only_key.setslot(slot_id, MessageField.NEXTKEY3, data[3])
                elif data[2] == 'delay3':
                    only_key.setslot(slot_id, MessageField.DELAY3, data[3])
                elif data[2] == '2fa':
                     only_key.setslot(slot_id, MessageField.TFATYPE, data[3])
                elif data[2] == 'gkey':
                    totpkey = prompt_key()
                    totpkey = base64.b32decode(totpkey)
                    totpkey = binascii.hexlify(totpkey)
                    # pad with zeros for even digits
                    totpkey = totpkey.zfill(len(totpkey) + len(totpkey) % 2)
                    payload = [int(totpkey[i: i+2], 16) for i in range(0, len(totpkey), 2)]
                    only_key.setslot(slot_id, MessageField.TOTPKEY, payload)
                elif data[2] == 'totpkey':
                    totpkey = prompt_key()
                    only_key.setslot(slot_id, MessageField.TOTPKEY, totpkey)
                elif data[2] == 'add_char1':
                    only_key.setslot(slot_id, MessageField.NEXTKEY3, data[3])
                elif data[2] == 'add_char4':
                    only_key.setslot(slot_id, MessageField.NEXTKEY3, data[3])
                else:
                    print("setslot <id> <type> [value]")
                    print("<type> must be ['label', 'ecc_key_label', 'rsa_key_label', 'url', 'add_char1', 'delay1', 'username', 'add_char2', 'delay2', 'password', 'add_char3', 'delay3', '2fa', 'totpkey', 'add_char4', 'add_char5']")
                continue
            elif data[0] == 'wipeslot':
                try:
                    if data[1] == '1a':
                        slot_id = 1
                    elif data[1] == '2a':
                        slot_id = 2
                    elif data[1] == '3a':
                        slot_id = 3
                    elif data[1] == '4a':
                        slot_id = 4
                    elif data[1] == '5a':
                        slot_id = 5
                    elif data[1] == '6a':
                        slot_id = 6
                    elif data[1] == '1b':
                        slot_id = 7
                    elif data[1] == '2b':
                        slot_id = 8
                    elif data[1] == '3b':
                        slot_id = 9
                    elif data[1] == '4b':
                        slot_id = 10
                    elif data[1] == '5b':
                        slot_id = 11
                    elif data[1] == '6b':
                        slot_id = 12
                    elif data[1] >= int('25'):
                        slot_id = int(data[1])
                except:
                    print("wipeslot <id>")
                    print("<id> must be slot number 1a - 6b")
                    continue

                only_key.wipeslot(slot_id)

            elif data[0] == 'backupkey':
                try:
                    only_key.generate_backup_key()
                except:
                    continue

            elif data[0] == 'idletimeout':
                try:
                    only_key.setslot(1, MessageField.IDLETIMEOUT, int(data[1]))
                except:
                    continue
            elif data[0] == 'wipemode':
                try:
                    only_key.setslot(1, MessageField.WIPEMODE, int(data[1]))
                except:
                    continue
            elif data[0] == 'keytypespeed':
                try:
                    only_key.setslot(1, MessageField.KEYTYPESPEED, int(data[1]))
                except:
                    continue
            elif data[0] == 'led_brightness':
                try:
                    only_key.setslot(1, MessageField.LEDBRIGHTNESS, int(data[1]))
                except:
                    continue
            elif data[0] == 'pgp_challenge_mode':
                try:
                    only_key.setslot(1, MessageField.PGPCHALENGEMODE, int(data[1]))
                except:
                    continue
            elif data[0] == 'ssh_challenge_mode':
                try:
                    only_key.setslot(1, MessageField.SSHCHALENGEMODE, int(data[1]))
                except:
                    continue
            elif data[0] == 'backup_key_mode':
                try:
                    only_key.setslot(1, MessageField.BACKUPMODE, int(data[1]))
                except:
                    continue
            elif data[0] == '2nd_profile_mode':
                try:
                    only_key.setslot(1, MessageField.SECPROFILEMODE, int(data[1]))
                except:
                    continue
            elif data[0] == 'keylayout':
                try:
                    only_key.setslot(1, MessageField.KEYLAYOUT, int(data[1]))
                except:
                    continue



def main():
    try:
        cli()
    except EOFError:
        only_key._hid.close()
        print()
        print('Bye!')
        pass