Chinenye Nmoh
112 lines
4.2 KiB
Python
112 lines
4.2 KiB
Python
from flask import jsonify
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from app.utils.logger import logger
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from app.api.services.base_service import BaseService
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from app.models.transaction import Transaction
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from app.models.loan import Loan
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from sqlalchemy import func, desc
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from datetime import datetime, timedelta, timezone
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from app.extensions import db
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from app.api.enums.transaction_type import TransactionType
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class DashboardService(BaseService):
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@staticmethod
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def get_dashboard_data():
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try:
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now = datetime.now()
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start_of_week = now - timedelta(days=now.weekday())
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start_of_week = start_of_week.replace(hour=0, minute=0, second=0, microsecond=0)
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# Calculate 24 hours ago
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last_24_hours = datetime.now(timezone.utc) - timedelta(hours=24)
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# Loans this week
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loans_this_week = db.session.query(
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func.sum(Loan.initial_loan_amount)
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).filter(
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Loan.created_at >= start_of_week
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).scalar() or 0
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# Payments this week
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payments_this_week = db.session.query(
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func.count(Transaction.id)
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).filter(
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Transaction.created_at >= start_of_week,
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Transaction.type == 'PAYMENT'
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).scalar() or 0
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# Request summary for the last 24 hours
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eligibility_check_count = db.session.query(
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func.count(Transaction.id)
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).filter(
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Transaction.type == TransactionType.ELIGIBILITY_CHECK.value,
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Transaction.created_at >= last_24_hours
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).scalar() or 0
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select_offer_count = db.session.query(
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func.count(Transaction.id)
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).filter(
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Transaction.type == TransactionType.SELECT_OFFER.value,
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Transaction.created_at >= last_24_hours
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).scalar() or 0
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provide_loan_count = db.session.query(
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func.count(Transaction.id)
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).filter(
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Transaction.type == TransactionType.PROVIDE_LOAN.value,
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Transaction.created_at >= last_24_hours
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).scalar() or 0
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repayment_count = db.session.query(
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func.count(Transaction.id)
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).filter(
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Transaction.type == TransactionType.REPAYMENT.value,
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Transaction.created_at >= last_24_hours
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).scalar() or 0
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# Recent transactions (not limited to 24 hrs, just latest 15)
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recent_transactions = Transaction.query.order_by(
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Transaction.id.desc()
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).limit(15).all()
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recent_transactions_data = [{
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'id': t.id,
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'transaction_id': t.transaction_id,
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'account_id': t.account_id,
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'type': t.type,
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'channel': t.channel,
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'created_at': t.created_at.isoformat() if t.created_at else None,
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'updated_at': t.updated_at.isoformat() if t.updated_at else None
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} for t in recent_transactions]
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# Final response
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dashboard_data = {
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"loans": {
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"value": float(loans_this_week),
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"currency": "Naira",
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"currency_text": "₦",
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"text": "this week"
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},
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"payments": {
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"value": payments_this_week,
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"currency": "Naira",
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"currency_text": "₦",
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"text": "this week"
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},
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"request_summary": {
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"eligibility_check": {"Eligibility": eligibility_check_count},
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"select_offer": {"Offers": select_offer_count},
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"provide_loan": {"Loans": provide_loan_count},
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"repayment": {"Repayments": repayment_count}
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},
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"recent_transactions": recent_transactions_data
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}
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return dashboard_data
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except Exception as e:
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logger.error(f"An error occurred while getting dashboard data: {str(e)}", exc_info=True)
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return jsonify({"message": "Internal Server Error"}), 500
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