#!/usr/bin/env python3

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from __future__ import print_function

"""Test message signing/verification RPC calls

Test the following RPCs:
    - sign
    - verify

"""

from framework.wallet import Wallet

class MessageSigningTest():
    def run_test(self):
      self.create()
      self.check_signing(False, False)
      self.check_signing(False, True)
      self.check_signing(True, False)
      self.check_signing(True, True)

    def create(self):
        print('Creating wallets')
        seeds = [
            'velvet lymph giddy number token physics poetry unquoted nibs useful sabotage limits benches lifestyle eden nitrogen anvil fewest avoid batch vials washing fences goat unquoted',
            'peeled mixture ionic radar utopia puddle buying illness nuns gadget river spout cavernous bounced paradise drunk looking cottage jump tequila melting went winter adjust spout',
        ]
        self.address = [
            '42ey1afDFnn4886T7196doS9GPMzexD9gXpsZJDwVjeRVdFCSoHnv7KPbBeGpzJBzHRCAs9UxqeoyFQMYbqSWYTfJJQAWDm',
            '44Kbx4sJ7JDRDV5aAhLJzQCjDz2ViLRduE3ijDZu3osWKBjMGkV1XPk4pfDUMqt1Aiezvephdqm6YD19GKFD9ZcXVUTp6BW',
        ]
        self.wallet = [None, None]
        for i in range(2):
            self.wallet[i] = Wallet(idx = i)
            # close the wallet if any, will throw if none is loaded
            try: self.wallet[i].close_wallet()
            except: pass
            res = self.wallet[i].restore_deterministic_wallet(seed = seeds[i])
            assert res.address == self.address[i]
            assert res.seed == seeds[i]

    def check_signing(self, subaddress, spend_key):
        print('Signing/verifing messages with ' + ('subaddress' if subaddress else 'standard address') + ' ' + ('spend key' if spend_key else 'view key'))
        messages = ['foo', '']
        if subaddress:
            address = []
            for i in range(2):
                res = self.wallet[i].create_account()
                if i == 0:
                    account_index = res.account_index
                res = self.wallet[i].create_address(account_index = account_index)
                if i == 0:
                    address_index = res.address_index
                address.append(res.address)
        else:
            address = [self.address[0], self.address[1]]
            account_index = 0
            address_index = 0
        for message in messages:
            res = self.wallet[0].sign(message, account_index = account_index, address_index = address_index, signature_type = 'spend' if spend_key else 'view')
            signature = res.signature
            for i in range(2):
                res = self.wallet[i].verify(message, address[0], signature)
                assert res.good
                assert not res.old
                assert res.version == 2
                assert res.signature_type == 'spend' if spend_key else 'view'
                res = self.wallet[i].verify('different', address[0], signature)
                assert not res.good
                res = self.wallet[i].verify(message, address[1], signature)
                assert not res.good
                res = self.wallet[i].verify(message, address[0], signature + 'x')
                assert not res.good
                res = self.wallet[i].verify(message, address[0], signature.replace('SigV2','SigV1'))
                assert not res.good

if __name__ == '__main__':
    MessageSigningTest().run_test()