Introduction to Parking Cost Calculators
Parking cost calculators have emerged as essential tools for motorists seeking to manage their parking expenses effectively. These calculators serve the vital purpose of providing drivers with an accurate estimate of parking fees based on various factors such as location, duration of stay, and type of vehicle. By utilizing a parking calculator, users can streamline the often complex process of evaluating parking costs, enabling them to make informed decisions that align with their budgets and schedules.
Enhanced Parking Cost Calculator
');
printWindow.document.close();
printWindow.print();
}
/**
* Copy the history to clipboard.
*/
function copyHistoryToClipboard() {
let text = historyData.map(entry => {
let line = `${entry.timestamp}: ${entry.hours} hour(s) at £${parseFloat(entry.rate).toFixed(2)}/hour` +
(entry.discount ? ` with ${entry.discount}% discount` : '') +
` = £${parseFloat(entry.costGBP).toFixed(2)}` +
(entry.currency !== 'GBP' ? ` | ${entry.currency} ${parseFloat(entry.costConverted).toFixed(2)}` : '') +
(entry.notes ? ` | Notes: ${entry.notes}` : '');
return line;
}).join("\n");
navigator.clipboard.writeText(text).then(() => {
alert("History copied to clipboard!");
}).catch(err => {
alert("Failed to copy history.");
});
}
/**
* Toggle sort order of history entries.
*/
function toggleSortOrder() {
sortAscending = !sortAscending;
displayHistory();
}
/**
* Import history JSON from a file.
*/
function importHistoryJSON(fileContent) {
try {
const importedData = JSON.parse(fileContent);
if (Array.isArray(importedData)) {
// Merge imported data with existing history
historyData = historyData.concat(importedData);
localStorage.setItem('parkingHistory', JSON.stringify(historyData));
displayHistory();
updateChart();
updateSummaryStats();
alert("History imported successfully.");
} else {
alert("Invalid JSON format.");
}
} catch (e) {
alert("Error parsing JSON file.");
}
}
/**
* Clear the history filter input.
*/
function clearFilter() {
document.getElementById('historyFilter').value = '';
displayHistory();
}
document.addEventListener("DOMContentLoaded", function() {
// Initialize chart and load history
initializeChart();
loadHistory();
// Show/hide conversion rate field based on currency selection
document.getElementById('currency').addEventListener('change', function() {
document.getElementById('conversionRateField').style.display = this.value !== 'GBP' ? 'block' : 'none';
});
// Show/hide discount field based on checkbox
document.getElementById('applyDiscount').addEventListener('change', function() {
document.getElementById('discountField').style.display = this.checked ? 'block' : 'none';
});
// Calculate button event listener
document.getElementById('calculateBtn').addEventListener('click', function() {
let hours = parseFloat(document.getElementById('hours').value);
let rate = parseFloat(document.getElementById('rate').value);
let currency = document.getElementById('currency').value;
let conversionRate = currency !== 'GBP' ? parseFloat(document.getElementById('conversionRate').value) : 1;
let discountApplied = document.getElementById('applyDiscount').checked;
let discount = discountApplied ? parseFloat(document.getElementById('discount').value) : 0;
let notes = document.getElementById('notes').value.trim();
if (isNaN(hours) || isNaN(rate) || hours < 0 || rate < 0 ||
(currency !== 'GBP' && (isNaN(conversionRate) || conversionRate <= 0))) {
updateResult("Please enter valid positive numbers for hours, rate, and conversion rate.", true);
return;
}
if (discountApplied && (isNaN(discount) || discount < 0 || discount > 100)) {
updateResult("Please enter a valid discount percentage (0-100).", true);
return;
}
let baseCost = hours * rate;
let finalCost = discountApplied ? baseCost * (1 - discount / 100) : baseCost;
let costGBP = finalCost;
let costConverted = currency !== 'GBP' ? finalCost / conversionRate : finalCost;
let now = new Date();
let entry = {
timestamp: now.toLocaleString(),
timestampValue: now.getTime(),
hours: hours,
rate: rate.toFixed(2),
discount: discountApplied ? discount : null,
costGBP: costGBP.toFixed(2),
currency: currency,
costConverted: currency !== 'GBP' ? costConverted.toFixed(2) : null,
notes: notes
};
updateResult(`Total Parking Cost: £${costGBP.toFixed(2)}` + (currency !== 'GBP' ? ` | ${currency} ${costConverted.toFixed(2)}` : ''));
saveHistoryEntry(entry);
});
// Reset button event listener
document.getElementById('resetBtn').addEventListener('click', function() {
document.getElementById('hours').value = '';
document.getElementById('rate').value = '';
document.getElementById('currency').value = 'GBP';
document.getElementById('conversionRateField').style.display = 'none';
document.getElementById('conversionRate').value = '';
document.getElementById('applyDiscount').checked = false;
document.getElementById('discountField').style.display = 'none';
document.getElementById('discount').value = '';
document.getElementById('notes').value = '';
updateResult("");
});
// Clear History button event listener
document.getElementById('clearHistoryBtn').addEventListener('click', function() {
if (confirm("Are you sure you want to clear the history?")) {
clearHistory();
}
});
// Export CSV button event listener
document.getElementById('exportCsvBtn').addEventListener('click', exportHistoryCSV);
// Export PDF button event listener
document.getElementById('exportPdfBtn').addEventListener('click', exportHistoryPDF);
// Export JSON button event listener
document.getElementById('exportJsonBtn').addEventListener('click', exportHistoryJSON);
// Print History button event listener
document.getElementById('printHistoryBtn').addEventListener('click', printHistory);
// Copy History button event listener
document.getElementById('copyHistoryBtn').addEventListener('click', copyHistoryToClipboard);
// Toggle Sort Order button event listener
document.getElementById('toggleSortBtn').addEventListener('click', toggleSortOrder);
// Clear Filter button event listener
document.getElementById('clearFilterBtn').addEventListener('click', clearFilter);
// Import History JSON button event listener
document.getElementById('importJsonBtn').addEventListener('click', function() {
document.getElementById('importJsonInput').click();
});
// Handle file selection for JSON import
document.getElementById('importJsonInput').addEventListener('change', function(e) {
const file = e.target.files[0];
if (file) {
const reader = new FileReader();
reader.onload = function(evt) {
importHistoryJSON(evt.target.result);
};
reader.readAsText(file);
}
});
// Filter history event listener
document.getElementById('historyFilter').addEventListener('input', displayHistory);
// Trigger calculation on pressing Enter in any input field
document.querySelectorAll('#hours, #rate, #conversionRate, #discount, #notes').forEach(function(input) {
input.addEventListener('keypress', function(e) {
if (e.key === 'Enter') {
e.preventDefault();
document.getElementById('calculateBtn').click();
}
});
});
// Dark Mode Toggle
document.getElementById('toggleDarkModeBtn').addEventListener('click', function() {
document.getElementById('calculatorContainer').classList.toggle('dark-mode');
});
});
