#!/usr/bin/env python3

import unittest
from datetime import datetime
from mock import patch, MagicMock
from talerdonations.donations import donations
from talerdonations.talerconfig import TalerConfig

TC = TalerConfig.from_env()
CURRENCY = TC["taler"]["currency"].value_string(required=True)

class DonationsTestCase(unittest.TestCase):
    def setUp(self):
        donations.app.testing = True
        self.app = donations.app.test_client()

    @patch("requests.post")
    @patch("random.randint")
    @patch("datetime.datetime")
    def test_proposal_creation(self, mocked_datetime,
                               mocked_random, mocked_post):
        mocked_datetime.today.return_value = datetime.today()
        mocked_random.return_value = 333
        order_id = "donation-%s-%X-%s" % \
            ("Tor", mocked_random(), mocked_datetime.today().strftime("%H_%M_%S"))
        ret_post = MagicMock()
        ret_post.status_code = 200
        ret_post.json.return_value = {}
        mocked_post.return_value = ret_post
        self.app.get(
            "/generate-contract?nonce=44&donation_receiver=Tor&donation_amount=1.0")
        mocked_post.assert_called_with(
            "http://backend.test.taler.net/proposal",
            json={
                "order": {
                    "summary": "Donation!",
                    "nonce": "44",
                    "amount": {
                        "value": 1,
                        "fraction": 0,
                        "currency": CURRENCY},
                    "max_fee": {
                        "value": 1,
                        "fraction": 0,
                        "currency": CURRENCY},
                    "order_id": order_id,
                    "products": [{
                        "description": "Donation to Tor",
                        "quantity": 1,
                        "product_id": 0,
                        "price": {
                            "value": 1,
                            "fraction": 0,
                            "currency": CURRENCY}}],
                    "fulfillment_url":
                        "http://localhost/fulfillment?order_id=%s" % order_id,
                    "pay_url": "http://localhost/pay",
                    "merchant": {
                        "instance": "Tor",
                        "address": "nowhere",
                        "name": "Kudos Inc.",
                        "jurisdiction": "none"}}})

if __name__ == "__main__":
    unittest.main()