CHIEFSOFT\ameye
247 lines
8.6 KiB
Python
247 lines
8.6 KiB
Python
from app.models import Customer, Account, Transaction
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from app.api.enums import TransactionType
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from flask import jsonify
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from marshmallow import ValidationError
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import logging
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from app.api.integrations import KafkaIntegration
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from app.config import Config
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logger = logging.getLogger(__name__)
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from flask_mail import Mail, Message
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import smtplib
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from email.mime.text import MIMEText
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from email.mime.multipart import MIMEMultipart
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import datetime
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import jwt
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class BaseService:
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TRANSACTION_TYPE = None
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JWT_SECRET_KEY = Config.JWT_SECRET_KEY
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SEND_EMAIL_FROM = Config.SEND_EMAIL_FROM
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SEND_EMAIL_PASS = Config.SEND_EMAIL_PASS
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THIS_SITE_URL = Config.THIS_SITE_URL
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@staticmethod
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def send_resetpass_mail(signup_email, pending_uid, pending_id, firstname, lastname):
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pending_member = {
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"email": signup_email,
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"pending_uid": pending_uid,
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"first_name": firstname,
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"last_name": lastname,
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"pending_id": pending_id,
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}
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logger.info(f"Send Email DATA ***** {pending_member}")
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jwt_part = jwt.encode(
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{"user": pending_member, 'exp': datetime.datetime.utcnow() + datetime.timedelta(minutes=3330)},
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BaseService.JWT_SECRET_KEY, algorithm='HS256'
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)
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panel_url = BaseService.THIS_SITE_URL #"https://qa-panel.mermsemr.com"
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link_url = str(panel_url) + '/accreset/' + jwt_part
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msg_body = f"""
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Hello {firstname},
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You received this message for account reset password
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Follow the link:{link_url}
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For any Support
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Reach Out
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support@mermsemr.com
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"""
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sender_email = BaseService.SEND_EMAIL_FROM
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sender_password = BaseService.SEND_EMAIL_PASS
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receiver_email = signup_email
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subject = "Reset Password Email"
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body = msg_body
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msg = MIMEMultipart()
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msg['Subject'] = subject
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msg['From'] = sender_email
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msg['To'] = receiver_email
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msg.attach(MIMEText(body, 'plain')) # or 'html' for HTML content
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try:
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# For Gmail, use 'smtp.gmail.com' and port 587 (TLS) or 465 (SSL)
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# For other providers, consult their documentation for SMTP server and port
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server = smtplib.SMTP('smtp.gmail.com', 587)
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# server.starttls() # Enable TLS encryption
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server.login(sender_email, sender_password)
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server.sendmail(sender_email, receiver_email, msg.as_string())
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print("Email sent successfully!")
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except Exception as e:
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print(f"Error sending email: {e}")
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logger.error(f"Error sending email: {e}")
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finally:
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server.quit() # Close the connection
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@classmethod
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def validate_data(cls, data, schema):
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"""
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Validate input data based on the provided schema.
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"""
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logger.info(f"Processing {cls.TRANSACTION_TYPE} request")
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return schema.load(data)
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@classmethod
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def get_or_create_customer(cls, validated_data):
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"""
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Check if a customer exists; if not, create one.
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"""
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customer = Customer.query.filter_by(id=validated_data.get("customerId")).first()
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if not customer:
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customer = Customer.create_customer(
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id=validated_data.get("customerId"),
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msisdn=validated_data.get("msisdn"),
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country_code=validated_data.get("countryCode"),
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account_id=validated_data.get("accountId"),
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)
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return customer
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@classmethod
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def validate_account_ownership(cls, account_id, customer_id):
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"""
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Check if the provided account belongs to the customer.
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"""
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is_valid = Account.is_valid_account(account_id, customer_id)
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return is_valid
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@classmethod
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def log_transaction(cls, validated_data):
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"""
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Create a new transaction.
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"""
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channel = "USSD" if validated_data.get("channel") is None else validated_data.get("channel")
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return Transaction.create_transaction(
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transaction_id = validated_data.get("transactionId"),
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customer_id = validated_data.get('customerId', None),
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account_id = validated_data.get("accountId", None),
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type = cls.TRANSACTION_TYPE,
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channel = channel,
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)
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@classmethod
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def async_send_to_kafka(cls, loan_data, request_id, topic):
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KafkaIntegration.send_loan_request(loan_data = loan_data, request_id = request_id, topic = topic)
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KafkaIntegration.flush()
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@classmethod
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def calculate_charges(cls, offer, amount):
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"""
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Calculates and returns the charges for the given offer and amount.
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Args:
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offer (Offer): The offer object that contains the charges.
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amount (float): The requested loan amount.
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Returns:
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dict: A dictionary containing the calculated charges.
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"""
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if not offer or not offer.charges:
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logger.error(f"No charges found for offer ID {offer.id}")
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return {"error": "No charges found for the offer"}
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loan_charges = offer.charges
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tenor = offer.schedule # offer.tenor // 30 # Convert to months
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interest = cls.get_charge_detail(rates = offer.interest_rate, charges = loan_charges, code = "INTEREST", amount = amount)
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management = cls.get_charge_detail(rates = offer.management_rate, charges = loan_charges, code = "MGTFEE", amount = amount)
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insurance = cls.get_charge_detail(rates = offer.insurance_rate, charges = loan_charges, code = "INSURANCE", amount = amount)
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vat = cls.get_charge_detail(rates = offer.vat_rate, charges = loan_charges, code = "VAT", amount = amount, management_fee = management["fee"])
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# Separate fees into upfront and postpaid
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upfront_fees = [
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fee["fee"]
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for fee in [interest, management, insurance, vat]
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if fee["due_days"] == 0
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]
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postpaid_fees = [
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fee["fee"]
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for fee in [interest, management, insurance, vat]
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if fee["due_days"] != 0
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]
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vat_test = vat["fee"]
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logger.info(f"VAT fee == *************** : {vat_test}")
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# Up-front payment: (only those fees due immediately i.e due_days == 0)
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# upfront_payment = sum(upfront_fees)
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if offer.schedule == 1:
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upfront_payment = vat["fee"] + management["fee"] + insurance["fee"] + interest["fee"]
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interest_amount = interest["fee"]
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repayment_amount = amount
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else:
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upfront_payment = vat["fee"] + insurance["fee"]+management["fee"]
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interest_amount = interest["fee"]*offer.schedule
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repayment_amount = amount + interest_amount
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# Repayment amount: (principal + only those fees not due immediately i.e due_days != 0)
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# repayment_amount = amount + (sum(postpaid_fees) * tenor)
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# Total amount: (upfront_payment + repayment_amount)
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total_amount = upfront_payment + repayment_amount
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# Calculate the installment amount
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installment_amount = repayment_amount / offer.schedule
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return {
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"interest": interest,
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"interest_amount": interest_amount,
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"management": management,
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"insurance": insurance,
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"vat": vat,
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"upfront_payment": round(upfront_payment, 2),
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"repayment_amount": round(repayment_amount, 2),
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"installment_amount": round(installment_amount, 2),
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"total_amount": round(total_amount, 2)
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}
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@classmethod
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def get_charge_detail(cls, rates, charges, code, amount, management_fee= 0.0):
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"""
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Get details for a specific charge code from a list of loan charges.
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Returns default values if not found.
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"""
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fee = 0.0
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if code == "VAT" and management_fee > 0:
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fee = management_fee * rates / 100
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else:
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fee = amount * rates / 100
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return {
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"rate": rates,
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"fee": round(fee, 2),
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"due_days": 30,
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"code": code,
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"description" : "have no idea how to get this yet"
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}
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# if charge.code == code:
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# if code == "VAT" and management_fee > 0:
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# fee = management_fee * rates / 100
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# else:
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# fee = amount * rates / 100
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#
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# return {
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# "rate": rates,
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# "fee": round(fee, 2),
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# "due_days": charge.due
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# }
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# return {"rate": 0, "fee": 0, "due_days": 0}
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