def reverse_crypto_withdraw(_, request, queryset):
with transaction.atomic():
for withdraw in queryset.select_related('account__user',
'account__currency'):
with transaction.atomic():
if withdraw.status == CryptoWithdraw.STATUS.reversed:
continue
if Statement.objects.filter(
fk=withdraw.pk,
type=Statement.TYPES.reversed).exists():
continue
account = withdraw.account
account.deposit += abs(withdraw.amount)
account.save()
statement = Statement()
statement.account = account
statement.type = Statement.TYPES.reversed
statement.description = "Reverse"
statement.amount = abs(withdraw.amount)
statement.fk = withdraw.pk
statement.save()
withdraw.status = CryptoWithdraw.STATUS.reversed
withdraw.save()
messages.success(request, _("Withdraw successfully reversed"))
def post(self, request):
# Valor a ser emprestado
amount = round(Decimal(request.POST.get('amount').replace(',', '.')),
8)
# Numero de parcelas do empréstimo segundo a tabela
times = int(request.POST.get('times'))
investment = Investments.get_active_by_user(request.user)
installments = generate_fixed_loan_table(investment,
amount,
times=times,
raw_date=True)
checking_account = Accounts.objects.filter(
user=request.user,
currency__code=investment.account.currency.code,
currency__type=Currencies.TYPES.checking).first()
credit = Investments.get_credit_by_user(request.user)
if times <= len(installments['data']) and credit['loan'][
'available'] >= amount and amount >= Decimal('0.001'):
# Faz tudo via transação no banco
with transaction.atomic():
checking_account.to_deposit(amount)
# Cria um novo empréstimo associando o saldo negativo a ele
loan = Loans()
loan.account = investment.account
loan.borrowed_amount = amount
loan.total_amount = installments['data'][0]['total_amount']
loan.times = times
loan.save()
# Cria o saldo negativo do empréstimo
statement = Statement()
statement.account = checking_account
statement.description = 'New loan'
statement.type = 'loan'
statement.amount = amount
statement.fk = loan.pk
statement.save()
for installment in installments['data']:
# Cria as parcelas
inst = Installments()
inst.loan = loan
inst.order = installment['times']
inst.due_date = installment['payment_date']
inst.interest_percent = installment['interest_percent']
inst.amount = Decimal(installment['amount'])
inst.save()
return {
'message_text':
_("Your loan application was created with success!"),
'message_type':
'success'
}
def withdraw_investments():
for item in Investments.objects.order_by('paid_date'):
with transaction.atomic():
reinvestments_qs = Reinvestments.objects.filter(investment=item, status=Reinvestments.STATUS.paid).order_by('created')
reinvestment = reinvestments_qs.first()
main_investment_was_paid = Statement.objects.filter(fk=item.pk, type=STATEMENT_TYPE).exists()
remaining_days = item.remaining_days
foreign_key = item.pk
message_amount = item.amount
if not reinvestment and item.status == Investments.STATUS.consumed:
continue
if reinvestment and main_investment_was_paid:
remaining_days = reinvestment.remaining_days
foreign_key = reinvestment.pk
if Statement.objects.filter(type=foreign_key).exists():
continue
# Skip if investment grace period not ends yet
if not remaining_days <= 0:
continue
account = item.account
withdraw_fee = item.account.currency.withdraw_fee
withdraw_fixed_fee = item.account.currency.withdraw_fixed_fee
total_amount = account.deposit + account.reserved
reserved = 0
if reinvestment:
if main_investment_was_paid:
message_amount = reinvestment.amount
reserved = account.reserved - reinvestment.amount
total_amount = total_amount - reserved
reinvestment.status = Reinvestments.STATUS.consumed
reinvestment.save()
else:
message_amount = reinvestment.amount_before
reserved = account.reserved - reinvestment.amount_before
total_amount = total_amount - reserved
discount = (total_amount * (withdraw_fee / 100)) + withdraw_fixed_fee
pay_amount = total_amount - discount
account.deposit = 0
account.reserved = reserved
account.save()
checking_account = Accounts.objects.filter(user=account.user, currency__type=Currencies.TYPES.checking).first()
checking_account.to_deposit(pay_amount)
statement = Statement()
statement.amount = Decimal('0') - total_amount
statement.description = 'Termination of investment plan'
statement.type = STATEMENT_TYPE
statement.account = account
statement.fk = foreign_key
statement.save()
statement = Statement()
statement.amount = pay_amount
statement.description = 'Return of invested amount'
statement.type = STATEMENT_TYPE_RETURN
statement.account = checking_account
statement.fk = foreign_key
statement.save()
still_has_reinvestments = reinvestments_qs.exists()
item.amount = reserved
item.save()
if not still_has_reinvestments:
item.status = Investments.STATUS.consumed
item.save()
else:
# Downgrade plan
plan = Plans.get_by_amount(reserved)
if plan.pk != item.plan_grace_period.plan.pk:
plan_grace_period = PlanGracePeriods.objects.get(plan=plan, grace_period=item.plan_grace_period.grace_period)
item.plan_grace_period = plan_grace_period
item.save()
# Remove all incomes and recalc them
start_date = timezone.now() + timedelta(days=1)
last_reinvestment = Reinvestments.objects.filter(investment=item).order_by('-created').first()
end_date = last_reinvestment.end_date
Incomes.objects.filter(investment=item, date__gte=start_date.date(), date__lte=end_date.date()).delete()
if last_reinvestment.remaining_months <= 0:
continue
range_dates = list(rrule(DAILY, dtstart=start_date, until=end_date))
income_amount = (item.amount * (plan_grace_period.income_percent / 100)) * last_reinvestment.remaining_months
income_table = decimal_split(income_amount, len(range_dates), 98, 100)
date_index = 0
bulk_incomes = []
for dt in range_dates:
income = Incomes()
income.date = dt
income.amount = income_table[date_index]
income.investment = item
bulk_incomes.append(income)
date_index += 1
Incomes.objects.bulk_create(bulk_incomes)
print('Auto withdraw (re)investment of {} from {} user'.format(message_amount, item.account.user.username))
def post(self, request):
if Investments.get_active_by_user(self.request.user):
return {'message': _("ERROR! You already have a investment")}
grace_period_pk = request.POST['grace_period']
grace_period = PlanGracePeriods.objects.get(pk=grace_period_pk)
checking_account = Accounts.objects.get(
user=request.user,
currency__code=grace_period.currency.code,
currency__type=Currencies.TYPES.checking)
investment_account = Accounts.objects.get(
user=request.user, currency=grace_period.currency)
amount = request.POST.get('amount', '0.00').replace(',', '.')
amount = ''.join(c for c in amount if c.isdigit() or c == '.')
if not amount:
amount = '0.00'
amount = Decimal(amount)
amount_with_fee = amount + grace_period.plan.membership_fee
min_invest = grace_period.plan.min_down
max_invest = grace_period.plan.max_down
if min_invest > amount or max_invest < amount:
return {
'message':
_("ERROR! The investment amount it is out of the plan limit")
}
elif amount_with_fee > checking_account.deposit:
return {
'message':
_("ERROR! Your {} account does not have enought deposit amount"
.format(checking_account.currency.name))
}
else:
with transaction.atomic():
investment = Investments()
investment.plan_grace_period = grace_period
investment.account = investment_account
investment.amount = amount
investment.status = Investments.STATUS.paid
investment.membership_fee = grace_period.plan.membership_fee
investment.paid_date = timezone.now()
investment.save()
if grace_period.grace_period.months > 0:
start_date = datetime.now() + timedelta(days=1)
end_date = start_date + relativedelta(
months=grace_period.grace_period.months)
range_dates = list(
rrule(DAILY, dtstart=start_date, until=end_date))
income_amount = (amount *
(grace_period.income_percent /
100)) * grace_period.grace_period.months
income_table = decimal_split(income_amount,
len(range_dates), 98, 100)
date_index = 0
bulk_incomes = []
for dt in range_dates:
income = Incomes()
income.date = dt
income.amount = income_table[date_index]
income.investment = investment
bulk_incomes.append(income)
date_index += 1
Incomes.objects.bulk_create(bulk_incomes)
checking_account.deposit -= amount_with_fee
checking_account.save()
investment_account.reserved += amount
investment_account.save()
statement = Statement()
statement.account = checking_account
statement.amount = Decimal('0.00') - amount_with_fee
statement.type = Statement.TYPES.investment
statement.description = 'New investment'
statement.fk = investment.pk
statement.save()
statement = Statement()
statement.account = investment_account
statement.amount = amount
statement.type = Statement.TYPES.investment
statement.description = 'New investment'
statement.fk = investment.pk
statement.save()
return {
'message':
_("Congratulations! Your investing plan was created."),
'redirect': True
}
return {
'message':
_("Someting in your new investment plan didn't work as expected.")
}
def post(self, request):
investment = Investments.get_by_user(request.user)
reinvestment_old_invest = investment.plan_grace_period
reinvestment_amount_before = investment.account.reserved
reinvestment_incomes = investment.account.deposit
grace_period_pk = request.POST['grace_period']
grace_period = PlanGracePeriods.objects.get(pk=grace_period_pk)
use_checking = request.POST['use_checking'] in ['true', '1']
if grace_period.grace_period.months < investment.plan_grace_period.grace_period.months:
return {'message': _("ERROR! Selected grace period is not valid.")}
checking_account = Accounts.objects.get(
user=request.user,
currency__code=grace_period.currency.code,
currency__type=Currencies.TYPES.checking)
investment_account = Accounts.objects.get(
user=request.user, currency=grace_period.currency)
amount = request.POST.get('amount', '0.00').replace(',', '.')
amount = ''.join(c for c in amount if c.isdigit() or c == '.')
if not amount:
amount = '0.00'
amount = Decimal(amount)
reinvestment_amount = amount
membership_fee = Decimal('0.00')
amount_with_fee = amount + membership_fee
amount_with_investment = amount + investment.amount
reinvest_plan = Plans.objects.filter(
min_down__lte=amount_with_investment,
max_down__gte=amount_with_investment).order_by(
'-max_down').first()
min_reinvest = grace_period.plan.min_reinvest
months = grace_period.grace_period.months
grace_period = PlanGracePeriods.objects.get(
plan=reinvest_plan, grace_period__months=months)
reinvestment_new_invest = grace_period
# Se for um upgrade, soma a diferenca do membership_fee
if reinvest_plan and reinvest_plan.pk != investment.plan_grace_period.plan.pk:
membership_fee = (reinvest_plan.membership_fee -
investment.plan_grace_period.plan.membership_fee)
amount_with_fee = amount + membership_fee
reinvestment_membership_fee = membership_fee
# Saldo para validacao do reinvestimento
balance = investment_account.deposit
if use_checking:
balance += checking_account.deposit
# Valida se o valor minimo de reinvestimento e compativel com o reinvestimento desejado
if min_reinvest > amount:
return {
'message':
_("ERROR! The min reinvestment for this plan is {}").format(
min_reinvest)
}
if amount_with_fee > balance:
return {'message': _("ERROR! You does not have enought balance")}
with transaction.atomic():
investment.plan_grace_period = grace_period
investment.amount = amount_with_investment
investment.status = Investments.STATUS.paid
investment.membership_fee = membership_fee
investment.paid_date = timezone.now()
investment.save()
if grace_period.grace_period.months > 0:
start_date = datetime.now() + timedelta(days=1)
end_date = start_date + relativedelta(
months=grace_period.grace_period.months)
Incomes.objects.filter(investment=investment,
date__gte=start_date.date(),
date__lte=end_date.date()).delete()
range_dates = list(
rrule(DAILY, dtstart=start_date, until=end_date))
income_amount = (amount_with_investment *
(grace_period.income_percent /
100)) * grace_period.grace_period.months
income_table = decimal_split(income_amount, len(range_dates),
98, 100)
date_index = 0
bulk_incomes = []
for dt in range_dates:
income = Incomes()
income.date = dt
income.amount = income_table[date_index]
income.investment = investment
bulk_incomes.append(income)
date_index += 1
Incomes.objects.bulk_create(bulk_incomes)
discount_amount = investment_account.deposit - amount_with_fee
if discount_amount < Decimal('0.00'):
statement = Statement()
statement.account = investment_account
statement.amount = Decimal('0.00') - investment_account.deposit
statement.type = 'reinvestment'
statement.description = 'New reinvestment'
statement.fk = investment.pk
statement.save()
investment_account.deposit = Decimal('0.00')
investment_account.save()
else:
statement = Statement()
statement.account = investment_account
statement.amount = Decimal('0.00') - amount_with_fee
statement.type = 'reinvestment'
statement.description = 'New reinvestment'
statement.fk = investment.pk
statement.save()
investment_account.takeout(amount_with_fee)
if use_checking and discount_amount < Decimal('0.00'):
checking_account.takeout(abs(discount_amount))
statement = Statement()
statement.account = checking_account
statement.amount = discount_amount
statement.type = 'reinvestment'
statement.description = 'New reinvestment'
statement.fk = investment.pk
statement.save()
investment_account.reserved += amount
investment_account.save()
statement = Statement()
statement.account = investment_account
statement.amount = amount
statement.type = 'reinvestment'
statement.description = 'New reinvestment'
statement.fk = investment.pk
statement.save()
reinvestment = Reinvestments()
reinvestment.old_invest = reinvestment_old_invest
reinvestment.new_invest = reinvestment_new_invest
reinvestment.amount = reinvestment_amount
reinvestment.amount_before = reinvestment_amount_before
reinvestment.incomes = reinvestment_incomes
reinvestment.membership_fee = reinvestment_membership_fee
reinvestment.investment = investment
reinvestment.save()
return {
'message':
_("Congratulations! Your reinvesting plan was created."),
'redirect': True
}
