#   Eos - Verifiable elections
#   Copyright © 2017  RunasSudo (Yingtong Li)
#
#   This program is free software: you can redistribute it and/or modify
#   it under the terms of the GNU Affero General Public License as published by
#   the Free Software Foundation, either version 3 of the License, or
#   (at your option) any later version.
#
#   This program is distributed in the hope that it will be useful,
#   but WITHOUT ANY WARRANTY; without even the implied warranty of
#   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
#   GNU Affero General Public License for more details.
#
#   You should have received a copy of the GNU Affero General Public License
#   along with this program.  If not, see <http://www.gnu.org/licenses/>.

from eos.core.bigint import *
from eos.core.bitstring import *
from eos.core.objects import *

# Common library things
# ===================

class EosTestCase:
	@classmethod
	def setUpClass(cls):
		pass
	
	def assertEqual(self, a, b):
		if is_python:
			self.impl.assertEqual(a, b)
		else:
			if a is None:
				if b is not None:
					raise Error('Assertion failed: ' + str(a) + ' != ' + str(b))
			else:
				if a != b:
					raise Error('Assertion failed: ' + str(a) + ' != ' + str(b))
	
	def assertEqualJSON(self, a, b):
		self.assertEqual(EosObject.to_json(a), EosObject.to_json(b))

def py_only(func):
	func._py_only = True
def js_only(func):
	func._js_only = True

# eos.core tests
# ==============

class ObjectTestCase(EosTestCase):
	@classmethod
	def setUpClass(cls):
		class Person(TopLevelObject):
			name = StringField()
			address = StringField(default=None)
			def say_hi(self):
				return 'Hello! My name is ' + self.name
		
		cls.Person = Person
	
	def test_basic(self):
		person1 = self.Person(name='John', address='Address 1')
		person2 = self.Person(name='James', address='Address 2')
		
		self.assertEqual(person1.address, 'Address 1')
		self.assertEqual(person2.address, 'Address 2')
		self.assertEqual(person1.say_hi(), 'Hello! My name is John')
		self.assertEqual(person2.say_hi(), 'Hello! My name is James')
	
	def test_serialise(self):
		person1 = self.Person(name='John', address='Address 1')
		expect1 = {'_ver': '0.1', 'name': 'John', 'address': 'Address 1'}
		#expect1a = {'type': 'eos.core.tests.ObjectTestCase.setUpClass.<locals>.Person', 'value': expect1}
		expect1a = {'type': 'eos.core.tests.Person', 'value': expect1}
		
		self.assertEqualJSON(person1.serialise(), expect1)
		self.assertEqualJSON(EosObject.serialise_and_wrap(person1, self.Person), expect1)
		self.assertEqualJSON(EosObject.serialise_and_wrap(person1), expect1a)
		
		#self.assertEqual(EosObject.deserialise_and_unwrap(expect1a), person1)
		self.assertEqualJSON(EosObject.deserialise_and_unwrap(expect1a).serialise(), person1.serialise())

class HashTestCase(EosTestCase):
	def test_hash(self):
		self.assertEqual(EosObject.to_sha256('Hello World!'), 'f4OxZX/x/FO5LcGBSKHWXfwtSx+j1ncoSt3SABJtkGk=')

class BigIntTestCase(EosTestCase):
	def test_basic(self):
		bigint1 = BigInt(5)
		bigint2 = BigInt('A', 16)
		bigint3 = BigInt('15')
		
		self.assertEqual(bigint1, 5)
		self.assertEqual(bigint2, 10)
		self.assertEqual(bigint3, 15)
		
		self.assertEqual(bigint1 + bigint2, 15)
		self.assertEqual(bigint3 - bigint2, bigint1)
		self.assertEqual(pow(bigint1, bigint2), pow(5, 10))
		self.assertEqual(pow(bigint1, bigint2, bigint3), pow(5, 10, 15))
		self.assertEqual(pow(bigint1, 10, 15), pow(5, 10, 15))