import { getMonthlyPayment } from '../../ui-kit/Calculator/getMonthlyPayment';
import { getLimitRangeByKeys } from '../../ui-kit/Calculator/rangeHelpers';
import {
  type CreditCalculatorData,
  type CreditCalculatorParams,
  type CreditCalculatorParamsViewSettings,
  type CreditCalculatorUserInputParams,
} from './CalculatorCreditContent';
import { DEFAULT_CREDIT_CALCULATOR_PARAMS } from './defaultCreditCalculatorParams';
import { getCreditCalculatorLimitParams } from './getCreditCalculatorLimitParams';
import { getCreditCalculatorRateParams } from './getCreditCalculatorRateParams';

export const getCreditCalculatorParams = (
  userInputParams: CreditCalculatorUserInputParams,
  calcSource?: CreditCalculatorData,
  paramsViewSettings?: CreditCalculatorParamsViewSettings,
): CreditCalculatorParams => {
  const { moneyValue, monthsValue } = userInputParams;
  const rateRows = calcSource?.rateRows || [DEFAULT_CREDIT_CALCULATOR_PARAMS];
  const limitRows = calcSource?.limitRows || [];
  const creditCalculatorSourceBookLimitParams = getCreditCalculatorLimitParams({
    limitRows,
    userInputParams,
    paramsViewSettings,
  });

  const { minSum, maxSum } = getLimitRangeByKeys(
    ['minSum', 'maxSum'],
    creditCalculatorSourceBookLimitParams,
    rateRows,
  );
  const { minMonths, maxMonths } = getLimitRangeByKeys(
    ['minMonths', 'maxMonths'],
    creditCalculatorSourceBookLimitParams,
    rateRows,
  );

  const creditCalculatorRateParams = getCreditCalculatorRateParams({
    rateRows,
    userInputParams,
    paramsViewSettings,
    moneyValue,
    monthsValue,
  });
  const { rate } = creditCalculatorRateParams;
  const monthlyPayment = getMonthlyPayment(rate, userInputParams);

  return {
    ...creditCalculatorRateParams,
    ...userInputParams,
    minSum,
    maxSum,
    minMonths,
    maxMonths,
    moneyValue,
    monthsValue,
    monthlyPayment,
  };
};