Move things around for readability in uncloud_pay models and serializer
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4e51670a90
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2 changed files with 141 additions and 83 deletions
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@ -10,6 +10,7 @@ from calendar import monthrange
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import uuid
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# Define DecimalField properties, used to represent amounts of money.
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AMOUNT_MAX_DIGITS=10
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AMOUNT_DECIMALS=2
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@ -23,6 +24,70 @@ class RecurringPeriod(models.TextChoices):
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PER_HOUR = 'HOUR', _('Per Hour')
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PER_SECOND = 'SECOND', _('Per Second')
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###
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# Payments and Payment Methods.
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class Payment(models.Model):
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uuid = models.UUIDField(primary_key=True, default=uuid.uuid4, editable=False)
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owner = models.ForeignKey(get_user_model(),
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on_delete=models.CASCADE)
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amount = models.DecimalField(
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default=0.0,
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max_digits=AMOUNT_MAX_DIGITS,
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decimal_places=AMOUNT_DECIMALS,
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validators=[MinValueValidator(0)])
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source = models.CharField(max_length=256,
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choices = (
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('wire', 'Wire Transfer'),
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('stripe', 'Stripe'),
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('voucher', 'Voucher'),
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('referral', 'Referral'),
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('unknown', 'Unknown')
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),
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default='unknown')
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timestamp = models.DateTimeField(editable=False, auto_now_add=True)
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class PaymentMethod(models.Model):
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uuid = models.UUIDField(primary_key=True, default=uuid.uuid4, editable=False)
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owner = models.ForeignKey(get_user_model(),
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on_delete=models.CASCADE,
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editable=False)
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source = models.CharField(max_length=256,
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choices = (
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('stripe', 'Stripe'),
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('unknown', 'Unknown'),
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),
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default='stripe')
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description = models.TextField()
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primary = models.BooleanField(default=True)
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# Only used for "Stripe" source
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stripe_card_id = models.CharField(max_length=32, blank=True, null=True)
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def charge(self, amount):
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if amount > 0: # Make sure we don't charge negative amount by errors...
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if self.source == 'stripe':
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# TODO: wire to stripe, see meooow-payv1/strip_utils.py
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payment = Payment(owner=self.owner, source=self.source, amount=amount)
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payment.save() # TODO: Check return status
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return True
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else:
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# We do not handle that source yet.
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return False
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else:
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return False
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class Meta:
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unique_together = [['owner', 'primary']]
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###
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# Bills & Payments.
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class Bill(models.Model):
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uuid = models.UUIDField(primary_key=True, default=uuid.uuid4, editable=False)
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owner = models.ForeignKey(get_user_model(),
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@ -56,6 +121,10 @@ class Bill(models.Model):
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return self.ending_date < timezone.now()
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class BillRecord():
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"""
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Entry of a bill, dynamically generated from order records.
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"""
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def __init__(self, bill, order_record):
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self.bill = bill
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self.order = order_record.order
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@ -114,6 +183,9 @@ class BillRecord():
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raise Exception('Unsupported recurring period: {}.'.
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format(record.recurring_period))
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###
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# Orders.
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# /!\ BIG FAT WARNING /!\ #
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#
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# Order are assumed IMMUTABLE and used as SOURCE OF TRUST for generating
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@ -190,63 +262,12 @@ class OrderRecord(models.Model):
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def ending_date(self):
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return self.order.ending_date
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class PaymentMethod(models.Model):
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uuid = models.UUIDField(primary_key=True, default=uuid.uuid4, editable=False)
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owner = models.ForeignKey(get_user_model(),
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on_delete=models.CASCADE,
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editable=False)
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source = models.CharField(max_length=256,
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choices = (
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('stripe', 'Stripe'),
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('unknown', 'Unknown'),
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),
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default='stripe')
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description = models.TextField()
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primary = models.BooleanField(default=True)
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# Only used for "Stripe" source
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stripe_card_id = models.CharField(max_length=32, blank=True, null=True)
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def charge(self, amount):
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if amount > 0: # Make sure we don't charge negative amount by errors...
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if self.source == 'stripe':
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# TODO: wire to stripe, see meooow-payv1/strip_utils.py
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payment = Payment(owner=self.owner, source=self.source, amount=amount)
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payment.save() # TODO: Check return status
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return True
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else:
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# We do not handle that source yet.
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return False
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else:
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return False
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class Meta:
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unique_together = [['owner', 'primary']]
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class Payment(models.Model):
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uuid = models.UUIDField(primary_key=True, default=uuid.uuid4, editable=False)
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owner = models.ForeignKey(get_user_model(),
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on_delete=models.CASCADE)
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amount = models.DecimalField(
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default=0.0,
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max_digits=AMOUNT_MAX_DIGITS,
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decimal_places=AMOUNT_DECIMALS,
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validators=[MinValueValidator(0)])
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source = models.CharField(max_length=256,
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choices = (
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('wire', 'Wire Transfer'),
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('stripe', 'Stripe'),
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('voucher', 'Voucher'),
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('referral', 'Referral'),
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('unknown', 'Unknown')
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),
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default='unknown')
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timestamp = models.DateTimeField(editable=False, auto_now_add=True)
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###
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# Products
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# Abstract (= no database representation) class used as parent for products
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# (e.g. uncloud_vm.models.VMProduct).
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class Product(models.Model):
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uuid = models.UUIDField(primary_key=True, default=uuid.uuid4, editable=False)
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owner = models.ForeignKey(get_user_model(),
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@ -9,36 +9,62 @@ from uncloud_vm.models import VMProduct
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import uncloud_pay.stripe as stripe
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# TODO: remove magic numbers for decimal fields
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class BillRecordSerializer(serializers.Serializer):
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order = serializers.CharField()
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description = serializers.CharField()
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recurring_period = serializers.CharField()
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recurring_price = serializers.DecimalField(max_digits=10, decimal_places=2)
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amount = serializers.DecimalField(max_digits=10, decimal_places=2)
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###
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# Users.
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class BillSerializer(serializers.ModelSerializer):
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records = BillRecordSerializer(many=True, read_only=True)
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class UserSerializer(serializers.ModelSerializer):
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class Meta:
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model = Bill
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fields = ['owner', 'total', 'due_date', 'creation_date',
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'starting_date', 'ending_date', 'records', 'final']
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model = get_user_model()
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fields = ['username', 'email', 'balance']
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# Display current 'balance'
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balance = serializers.SerializerMethodField('get_balance')
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def __sum_balance(self, entries):
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return reduce(lambda acc, entry: acc + entry.amount, entries, 0)
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def get_balance(self, user):
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return get_balance_for(user)
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###
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# Payments and Payment Methods.
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class PaymentSerializer(serializers.ModelSerializer):
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class Meta:
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model = Payment
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fields = ['owner', 'amount', 'source', 'timestamp']
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class PaymentMethodSerializer(serializers.ModelSerializer):
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class Meta:
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model = PaymentMethod
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fields = ['source', 'description', 'primary']
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class CreditCardSerializer(serializers.Serializer):
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number = serializers.IntegerField()
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exp_month = serializers.IntegerField()
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exp_year = serializers.IntegerField()
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cvc = serializers.IntegerField()
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class PaymentMethodSerializer(serializers.ModelSerializer):
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class CreatePaymentMethodSerializer(serializers.ModelSerializer):
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credit_card = CreditCardSerializer()
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class Meta:
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model = PaymentMethod
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fields = ['source', 'description', 'primary']
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fields = ['source', 'description', 'primary', 'credit_card']
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def create(self, validated_data):
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credit_card = stripe.CreditCard(**validated_data.pop('credit_card'))
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user = self.context['request'].user
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customer = stripe.create_customer(user.username, user.email)
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# TODO check customer error
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customer_id = customer['response_object']['id']
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stripe_card = stripe.create_card(customer_id, credit_card)
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# TODO: check credit card error
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validated_data['stripe_card_id'] = stripe_card['response_object']['id']
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class CreditCardSerializer(serializers.Serializer):
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number = serializers.IntegerField()
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exp_month = serializers.IntegerField()
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exp_year = serializers.IntegerField()
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cvc = serializers.IntegerField()
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class CreatePaymentMethodSerializer(serializers.ModelSerializer):
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credit_card = CreditCardSerializer()
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@ -58,15 +84,36 @@ class CreatePaymentMethodSerializer(serializers.ModelSerializer):
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validated_data['stripe_card_id'] = stripe_card['response_object']['id']
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payment_method = PaymentMethod.objects.create(**validated_data)
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return payment_method
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payment_method = PaymentMethod.objects.create(**validated_data)
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return payment_method
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class ProductSerializer(serializers.Serializer):
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vms = VMProductSerializer(many=True, read_only=True)
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###
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# Bills
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# TODO: remove magic numbers for decimal fields
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class BillRecordSerializer(serializers.Serializer):
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order = serializers.CharField()
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description = serializers.CharField()
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recurring_period = serializers.CharField()
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recurring_price = serializers.DecimalField(max_digits=10, decimal_places=2)
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amount = serializers.DecimalField(max_digits=10, decimal_places=2)
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class BillSerializer(serializers.ModelSerializer):
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records = BillRecordSerializer(many=True, read_only=True)
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class Meta:
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model = Bill
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fields = ['owner', 'total', 'due_date', 'creation_date',
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'starting_date', 'ending_date', 'records', 'final']
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###
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# Orders & Products.
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class OrderRecordSerializer(serializers.ModelSerializer):
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class Meta:
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model = OrderRecord
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fields = ['setup_fee', 'recurring_price', 'description']
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class OrderSerializer(serializers.ModelSerializer):
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records = OrderRecordSerializer(many=True, read_only=True)
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class Meta:
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@ -74,15 +121,5 @@ class OrderSerializer(serializers.ModelSerializer):
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fields = ['uuid', 'creation_date', 'starting_date', 'ending_date',
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'bill', 'recurring_period', 'records', 'recurring_price', 'setup_fee']
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class UserSerializer(serializers.ModelSerializer):
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class Meta:
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model = get_user_model()
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fields = ['username', 'email', 'balance']
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# Display current 'balance'
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balance = serializers.SerializerMethodField('get_balance')
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def __sum_balance(self, entries):
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return reduce(lambda acc, entry: acc + entry.amount, entries, 0)
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def get_balance(self, user):
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return get_balance_for(user)
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class ProductSerializer(serializers.Serializer):
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vms = VMProductSerializer(many=True, read_only=True)
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