public QuoteResult GetQuote(int loanAmount)
{
if (loanAmount < minimumLoanAmount)
{
return(new FailedQuoteResult($"Loan amount cannot be less than {minimumLoanAmount}"));
}
if (loanAmount > maximumLoanAmount)
{
return(new FailedQuoteResult($"Loan amount cannot be more than {maximumLoanAmount}"));
}
if (loanAmount % allowedIncrement != 0)
{
return(new FailedQuoteResult($"Loan amount must be an increment of {allowedIncrement}"));
}
var market = marketDataRepository.GetMarketData();
if (market.Sum(x => x.Available) < loanAmount)
{
return(new FailedQuoteResult($"Insuffiecnet funds avaialble for the requested amount"));
}
// Calculate the best market available for the loan amount.
var availableMarket = marketCalculator.AvailableMarket(loanAmount, market);
// Calculate the intrest rate
var rate = marketCalculator.CalculateIntrestRate(availableMarket);
// Calculate the monthly repayment
var monthlyRepayment = marketCalculator.CalulateMonthlyRepayments(loanAmount, rate, loanPeriod);
// Calculate the total repayments
var totalRepayment = marketCalculator.CalculateTotalRepayments(monthlyRepayment, loanPeriod);
var quote = new Quote();
quote.RequestedAmount = loanAmount;
quote.TotalRepayment = totalRepayment;
quote.MonthlyRepayment = monthlyRepayment;
quote.Rate = rate;
return(new SuccessfulQuoteResult(quote));
}
