Files
node_task_2a/public/main.js
T
2025-07-25 22:16:08 +01:00

425 lines
14 KiB
JavaScript

// main.js
// Function to update weather widget
async function updateWeather() {
try {
const res = await fetch("/api/weather");
if (!res.ok) throw new Error("Failed to fetch weather");
const data = await res.json();
const weatherDiv = document.getElementById("weather-widget");
if (!weatherDiv) return;
// Set temperature
weatherDiv.querySelector(".weather-temp").textContent = `${data.temp_c} °C`;
// Set icon
const icon = weatherDiv.querySelector(".weather-icon");
if (data.condition === "sunny") {
icon.src = "https://cdn-icons-png.flaticon.com/512/869/869869.png";
icon.alt = "Sunny";
} else if (data.condition === "rain") {
icon.src = "https://cdn-icons-png.flaticon.com/512/414/414974.png";
icon.alt = "Rainy";
} else if (data.condition === "snow") {
icon.src = "https://cdn-icons-png.flaticon.com/512/642/642102.png";
icon.alt = "Snowy";
}
} catch (err) {
// Show error in widget
const weatherDiv = document.getElementById("weather-widget");
if (weatherDiv) {
weatherDiv.querySelector(".weather-temp").textContent = "N/A";
weatherDiv.querySelector(".weather-icon").src = "";
weatherDiv.querySelector(".weather-icon").alt = "Error";
}
}
}
// Initial load
updateWeather();
// Update every 5 minutes
setInterval(updateWeather, 5 * 60 * 1000);
// --- Time Widget Logic ---
// Time zone offsets in hours relative to UTC
const timeZones = {
london: 0, // UTC+0 (BST not handled for simplicity)
est: -4, // UTC-4 (EDT, adjust for DST if needed)
nigeria: 1, // UTC+1
pakistan: 5, // UTC+5
};
function pad(n) {
return n < 10 ? "0" + n : n;
}
async function updateClocks() {
try {
const res = await fetch("/api/utc");
if (!res.ok) throw new Error("Failed to fetch UTC time");
const { utc } = await res.json();
const utcDate = new Date(utc);
// Update each clock
for (const [zone, offset] of Object.entries(timeZones)) {
const local = new Date(utcDate.getTime() + offset * 60 * 60 * 1000);
const h = pad(local.getUTCHours());
const m = pad(local.getUTCMinutes());
const s = pad(local.getUTCSeconds());
const el = document.getElementById(`${zone}-clock`);
if (el) el.textContent = `${h}:${m}:${s}`;
}
} catch (err) {
// Show error in all clocks
for (const zone of Object.keys(timeZones)) {
const el = document.getElementById(`${zone}-clock`);
if (el) el.textContent = "N/A";
}
}
}
// Initial load and update every second
updateClocks();
setInterval(updateClocks, 1000);
// --- Airport Autocomplete ---
// const airportInput = document.querySelector('input[placeholder*="airport"]');
// let dropdownDiv;
// if (airportInput) {
// console.log("hi");
// dropdownDiv = document.createElement("div");
// dropdownDiv.className =
// "absolute bg-white border border-gray-300 rounded shadow z-10 w-full max-h-48 overflow-y-auto top-[calc(100%+10px)]";
// dropdownDiv.style.display = "none";
// airportInput.parentNode.appendChild(dropdownDiv);
// airportInput.addEventListener("input", async function () {
// const val = airportInput.value.trim();
// if (val.length < 3) {
// dropdownDiv.style.display = "none";
// return;
// }
// try {
// const res = await fetch(`/airports?search=${encodeURIComponent(val)}`);
// if (!res.ok) throw new Error("Failed to fetch airports");
// const airports = await res.json();
// if (!Array.isArray(airports) || airports.length === 0) {
// dropdownDiv.innerHTML =
// '<div class="p-2 text-gray-500">No results</div>';
// dropdownDiv.style.display = "block";
// return;
// }
// dropdownDiv.innerHTML = airports
// .map(
// (a, i) =>
// `<div class="p-2 hover:bg-sky-100 cursor-pointer" data-index="${i}">${a.name}</div>`
// )
// .join("");
// dropdownDiv.style.display = "block";
// Array.from(dropdownDiv.children).forEach((child, i) => {
// child.addEventListener("click", () => {
// airportInput.value = child.textContent;
// dropdownDiv.style.display = "none";
// selectedAirport = airports[i];
// console.log("hey");
// airportInput.textContent = `hold`;
// if (selectedAirport) {
// console.log(selectedAirport);
// airportInput.value = `${selectedAirport.name} (${selectedAirport.code})`;
// showMap(
// Number(selectedAirport.latitude_deg),
// Number(selectedAirport.longitude_deg)
// );
// }
// });
// });
// } catch (err) {
// dropdownDiv.innerHTML =
// '<div class="p-2 text-red-500">Error loading airports</div>';
// dropdownDiv.style.display = "block";
// }
// });
// // Hide dropdown on blur
// airportInput.addEventListener("blur", () =>
// setTimeout(() => (dropdownDiv.style.display = "none"), 200)
// );
// }
// --- Airport Autocomplete ---
const airportInput = document.querySelector('input[placeholder*="airport"]');
let dropdownDiv;
let selectedAirport; // Declare globally to store selection
if (airportInput) {
dropdownDiv = document.createElement("div");
dropdownDiv.className =
"absolute bg-white border border-gray-300 rounded shadow z-10 w-full max-h-48 overflow-y-auto top-[calc(100%+10px)]";
dropdownDiv.style.display = "none";
dropdownDiv.setAttribute("role", "listbox"); // ARIA role
airportInput.parentNode.appendChild(dropdownDiv);
// Event Delegation for dropdown clicks (fixes listener duplication)
dropdownDiv.addEventListener("click", (e) => {
const item = e.target.closest("[data-index]");
if (!item) return;
const index = item.dataset.index;
selectedAirport = currentAirports[index]; // Use latest fetched data
airportInput.value = `${selectedAirport.name} (${selectedAirport.code})`; // Set once
// showMap(
// Number(selectedAirport.latitude_deg),
// Number(selectedAirport.longitude_deg)
// );
onAirportSelected(selectedAirport);
dropdownDiv.style.display = "none";
});
// Debounce input (300ms delay)
let debounceTimer;
let currentAirports = []; // Track latest results
airportInput.addEventListener("input", async function () {
clearTimeout(debounceTimer);
debounceTimer = setTimeout(async () => {
const val = airportInput.value.trim();
if (val.length < 3) {
dropdownDiv.style.display = "none";
return;
}
try {
const res = await fetch(`/airports?search=${encodeURIComponent(val)}`);
if (!res.ok) throw new Error("Failed to fetch");
const airports = await res.json();
currentAirports = airports; // Store for click handler
if (!airports.length) {
dropdownDiv.innerHTML =
'<div class="p-2 text-gray-500">No results</div>';
dropdownDiv.style.display = "block";
return;
}
// Escape HTML to prevent XSS
dropdownDiv.innerHTML = airports
.map((a, i) => {
const name = a.name.replace(
/[&<>]/g,
(c) => ({ "&": "&amp;", "<": "&lt;", ">": "&gt;" }[c])
);
return `<div class="p-2 hover:bg-sky-100 cursor-pointer"
data-index="${i}"
role="option"
aria-label="${name} (${a.code})">
${name}
</div>`;
})
.join("");
dropdownDiv.style.display = "block";
} catch (err) {
dropdownDiv.innerHTML =
'<div class="p-2 text-red-500">Error loading airports</div>';
dropdownDiv.style.display = "block";
}
}, 300);
});
// Hide dropdown only when focus leaves input/dropdown
document.addEventListener("click", (e) => {
if (!airportInput.contains(e.target) && !dropdownDiv.contains(e.target)) {
dropdownDiv.style.display = "none";
}
});
}
// --- Map Widget Logic ---
// let selectedAirport = null;
function showMap(lat, lon) {
console.log(lat, lon);
const mapDiv = document.getElementById("map-widget");
if (!mapDiv) return;
mapDiv.innerHTML = "";
mapDiv.style.height = "200px";
mapDiv.style.width = "300px";
// OpenLayers map
if (window.ol && window.ol.Map) {
new ol.Map({
target: mapDiv,
layers: [new ol.layer.Tile({ source: new ol.source.OSM() })],
view: new ol.View({
center: ol.proj.fromLonLat([-79.6248, 43.6532]),
zoom: 13,
}),
});
} else {
mapDiv.innerHTML =
'<div class="text-center text-gray-500">Map library not loaded</div>';
}
}
// --- Distance from Arctic Circle Widget ---
function haversine(lat1, lon1, lat2, lon2) {
const toRad = (deg) => (deg * Math.PI) / 180;
const R = 6371; // Earth radius in km
const dLat = toRad(lat2 - lat1);
const dLon = toRad(lon2 - lon1);
const a =
Math.sin(dLat / 2) * Math.sin(dLat / 2) +
Math.cos(toRad(lat1)) *
Math.cos(toRad(lat2)) *
Math.sin(dLon / 2) *
Math.sin(dLon / 2);
const c = 2 * Math.atan2(Math.sqrt(a), Math.sqrt(1 - a));
return R * c;
}
function updateDistanceWidget(lat, lon) {
const distDiv = document.getElementById("distance-widget");
if (!distDiv) return;
// Arctic Circle: latitude 66.56333, longitude 0
const arcticLat = 66.56333;
const arcticLon = 0;
const dist = haversine(arcticLat, arcticLon, lat, lon);
distDiv.textContent = dist.toFixed(1) + " KM";
}
// Update distance when airport is selected
function onAirportSelected(airport) {
if (
airport &&
airport.latitude_deg &&
airport.longitude_deg &&
!isNaN(Number(airport.latitude_deg)) &&
!isNaN(Number(airport.longitude_deg))
) {
showMap(Number(airport.latitude_deg), Number(airport.longitude_deg));
updateDistanceWidget(
Number(airport.latitude_deg),
Number(airport.longitude_deg)
);
}
}
// --- Analytic Logging ---
function logWidgetClick(widgetName) {
fetch("/analytic", {
method: "POST",
headers: { "Content-Type": "application/json" },
body: JSON.stringify({
widget_name: widgetName,
browser_type: navigator.userAgent,
}),
});
}
// --- Click Counter Widget ---
async function updateClickCounter() {
try {
const res = await fetch("/analytic/count");
if (!res.ok) throw new Error("Failed to fetch count");
const { count } = await res.json();
const el = document.getElementById("click-counter-widget");
if (el) el.textContent = count;
} catch (err) {
const el = document.getElementById("click-counter-widget");
if (el) el.textContent = "N/A";
}
}
updateClickCounter();
setInterval(updateClickCounter, 60 * 1000);
// --- Export XML Widget ---
const exportBtn = document.querySelector(
"button.bg-sky-400.text-white.font-semibold.px-8.py-2.rounded"
);
if (exportBtn && exportBtn.textContent.trim().toLowerCase() === "export") {
exportBtn.addEventListener("click", function () {
window.location.href = "/analytic/export";
});
}
// --- Reddit News Widget ---
async function updateRedditNews() {
try {
const res = await fetch("/reddit");
if (!res.ok) throw new Error("Failed to fetch reddit");
const posts = await res.json();
const newsDiv = document.getElementById("news-widget");
if (!newsDiv) return;
newsDiv.innerHTML = posts
.map(
(post) => `
<div class="bg-gray-100 p-2 rounded mb-2">
<a href="${post.url}" target="_blank" class="font-semibold text-blue-700 hover:underline">${post.title}</a>
<div class="text-xs text-gray-500">by ${post.author}</div>
</div>
`
)
.join("");
} catch (err) {
const newsDiv = document.getElementById("news-widget");
if (newsDiv)
newsDiv.innerHTML = '<div class="text-red-500">Failed to load news</div>';
}
}
updateRedditNews();
// --- Coin Calculator Widget ---
const coinInput = document.querySelector('input[placeholder*="coin"]');
const coinBtn = document.querySelector(
"button.bg-sky-400.text-white.font-semibold.px-8.py-2.rounded.mt-2"
);
const coinResult = document.getElementById("coin-result-list");
if (coinInput && coinBtn && coinResult) {
coinBtn.addEventListener("click", async function () {
const val = coinInput.value.trim();
if (!val || isNaN(val) || Number(val) < 0) {
coinResult.innerHTML =
'<li class="text-red-500">Enter a valid amount</li>';
return;
}
try {
const res = await fetch("/coin-calc", {
method: "POST",
headers: { "Content-Type": "application/json" },
body: JSON.stringify({ amount: val }),
});
if (!res.ok) throw new Error("Failed to calculate");
const data = await res.json();
coinResult.innerHTML = data
.map((c) => `<li>${c.count} x $${c.denomination}</li>`)
.join("");
} catch (err) {
coinResult.innerHTML =
'<li class="text-red-500">Error calculating coins</li>';
}
});
}
// Attach click listeners to widgets
function attachAnalyticListeners() {
const widgets = [
{ id: "weather-widget", name: "weather" },
{ id: "nigeria-clock", name: "nigeria-clock" },
{ id: "london-clock", name: "london-clock" },
{ id: "est-clock", name: "est-clock" },
{ id: "pakistan-clock", name: "pakistan-clock" },
{ id: "map-widget", name: "map" },
{ id: "distance-widget", name: "distance" },
{ id: "airport-autocomplete", name: "airport-autocomplete" },
{ id: "click-counter-widget", name: "click-counter" },
// Add more as needed
];
widgets.forEach((w) => {
const el = document.getElementById(w.id);
if (el) {
el.addEventListener("click", () => logWidgetClick(w.name));
}
});
}
// Call after DOMContentLoaded
if (document.readyState === "loading") {
document.addEventListener("DOMContentLoaded", attachAnalyticListeners);
} else {
attachAnalyticListeners();
}