48 lines
1.8 KiB
JavaScript
48 lines
1.8 KiB
JavaScript
// frontend/js/page-header.js
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// This function fetches the common header and injects it into the page
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async function loadHeader() {
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try {
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const response = await fetch('_header.html');
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if (!response.ok) {
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throw new Error('Could not load the header file.');
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}
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const headerHTML = await response.text();
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// Adds the header right after the opening <body> tag
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document.body.insertAdjacentHTML('afterbegin', headerHTML);
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} catch (error) {
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console.error('Failed to load header:', error);
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// Optionally, display an error to the user
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}
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}
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// This function populates the header with data from localStorage
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function populateHeaderData() {
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const selectedStation = JSON.parse(localStorage.getItem('selected_station'));
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if (!selectedStation) {
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alert('No station selected. Redirecting...');
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window.location.href = 'station_selection.html';
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return;
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}
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const stationNameEl = document.getElementById('station-name');
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const stationLocationEl = document.getElementById('station-location');
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const stationIdEl = document.getElementById('station-id-display');
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const productIdEl = document.getElementById('product-id-display');
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if (stationNameEl) stationNameEl.textContent = selectedStation.name;
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if (stationLocationEl) stationLocationEl.textContent = selectedStation.location;
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if (stationIdEl) stationIdEl.textContent = selectedStation.id;
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if (productIdEl) productIdEl.textContent = selectedStation.product_id;
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}
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// Main execution block
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// We use an async function to make sure the header is loaded BEFORE we try to fill it
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async function initializePageHeader() {
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await loadHeader();
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populateHeaderData();
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}
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// Run the initialization when the page content is loaded
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document.addEventListener('DOMContentLoaded', initializePageHeader); |