"""
Controller for loan disbursement endpoints.
"""
from flask import Blueprint, request, jsonify
from api.middleware import api_key_required
from api.models import DisbursementRequest, DisbursementResponse
import logging

# Configure logger
logger = logging.getLogger(__name__)

# Create blueprint
disbursement_bp = Blueprint('disbursement', __name__)

@disbursement_bp.route('/Disbursement', methods=['POST'])
@api_key_required
def disbursement():
    """
    Endpoint to process loan disbursement requests from Simbrella.
    
    This method handles requests to disburse loans to customer accounts.
    The operation should be executed atomically, providing the loan and
    collecting upfront fees within the same transaction.
    
    Returns:
        JSON response with disbursement status
    """
    try:
        # Parse and validate request
        data = request.get_json()
        if not data:
            return jsonify({
                'resultCode': '400',
                'resultDescription': 'Invalid JSON payload'
            }), 400
        
        # Validate required fields
        required_fields = ['requestId', 'debtId', 'transactionId', 'customerId', 
                          'accountId', 'productId', 'provideAmount', 'countryId']
        for field in required_fields:
            if field not in data:
                return jsonify({
                    'resultCode': '422',
                    'resultDescription': f'Missing required field: {field}'
                }), 422
        
        # Create request model
        req = DisbursementRequest.from_dict(data)
        
        # Process disbursement request (this would connect to the business logic)
        # For demonstration, we'll return a mock response
        
        # Create response
        response = DisbursementResponse(
            requestId=req.requestId,
            debtId=req.debtId,
            transactionId=req.transactionId,
            customerId=req.customerId,
            accountId=req.accountId,
            productId=req.productId,
            provideAmount=req.provideAmount,
            resultCode="00",
            resultDescription="Loan Request Completed Successfully!",
            collectAmountInterest=req.collectAmountInterest,
            collectAmountMgtFee=req.collectAmountMgtFee,
            collectAmountInsurance=req.collectAmountInsurance,
            collectAmountVAT=req.collectAmountVAT
        )
        
        logger.info(f"Processed disbursement for customer {req.customerId}, amount {req.provideAmount}")
        return jsonify(response.to_dict())
    
    except Exception as e:
        logger.error(f"Error processing disbursement: {str(e)}")
        return jsonify({
            'resultCode': '500',
            'resultDescription': 'Internal server error'
        }), 500