parking-calculator-library/src/main.js

A library to calculate parking fees based on duration, with discounts for early bird, weekend, and loyalty members.

import { ParkingFeeCalculator } from "./ParkingFeeCalculator.js";

document.getElementById("parkingForm").addEventListener("submit", function (e) {
  e.preventDefault();

  const calculator = new ParkingFeeCalculator();

  const entryTimeInput = document.getElementById("entryTime").value;
  const exitTimeInput = document.getElementById("exitTime").value;

  const entryTime = new Date(entryTimeInput);
  const exitTime = new Date(exitTimeInput);

  const resultSection = document.getElementById("resultSection");
  const parkingDuration = document.getElementById("parkingDuration");
  const baseFee = document.getElementById("baseFee");
  const discountsApplied = document.getElementById("discountsApplied");
  const totalFee = document.getElementById("totalFee");

  try {
    const duration = calculator.calculateParkingDuration(entryTime, exitTime);
    const baseParkingFee = calculator.calculateParkingFee(entryTime, exitTime);

    const discountOptions = {
      entryTime: entryTime,
      earlyBird: document.getElementById("earlyBirdDiscount").checked,
      weekendDiscount: document.getElementById("weekendDiscount").checked,
      loyaltyMember: document.getElementById("loyaltyDiscount").checked,
    };

    const { fee: finalFee, discounts } = calculator.applyDiscounts(
      baseParkingFee,
      discountOptions
    );

    // Ensure 'UGX' is used as part of the string
    parkingDuration.textContent = `${duration.toFixed(2)} hours`;
    baseFee.textContent = `${baseParkingFee.toFixed(2)}`;
    discountsApplied.textContent =
      discounts.length > 0 ? discounts.join(", ") : "No discounts applied";
    totalFee.textContent = `${finalFee.toFixed(2)}`;

    resultSection.style.display = "block";
  } catch (error) {
    alert(error.message);
    resultSection.style.display = "none";
  }
});