Add xls

README.md

@@ -1,6 +1,6 @@
 # BMLT Data Converter
 
-- Converts BMLT data from JSON to CSV or KML
+- Converts BMLT data from JSON to CSV, XLS or KML
   - Note that export of KML is only supported with GetSearchResults.
 - Use your semantic interface to build query url
 

package.json

@@ -23,15 +23,16 @@
 		"eslint": "^8.56.0",
 		"eslint-config-prettier": "^9.1.0",
 		"eslint-plugin-svelte": "^2.35.1",
-		"fetch-jsonp": "^1.3.0",
-		"gh-pages": "^6.1.1",
 		"prettier": "^3.1.1",
 		"prettier-plugin-svelte": "^3.1.2",
 		"svelte": "^4.2.7",
 		"svelte-check": "^3.6.0",
 		"tslib": "^2.4.1",
 		"typescript": "^5.0.0",
-		"vite": "^5.0.3"
+		"vite": "^5.0.3",
+		"gh-pages": "^6.1.1",
+		"fetch-jsonp": "^1.3.0",
+		"xlsx": "https://cdn.sheetjs.com/xlsx-0.20.1/xlsx-0.20.1.tgz"
 	},
 	"type": "module"
 }

src/lib/DataConverter.svelte

@@ -1,13 +1,14 @@
 <script lang="ts">
 	import { onDestroy } from 'svelte';
 	import { writable } from 'svelte/store';
-	import { fetchData, exportCSV, exportKML } from './DataUtils';
+	import { fetchData, exportCSV, exportXLS, exportKML } from './DataUtils';
 
 	const processing = writable<boolean>(false);
 	const errorMessage = writable<string>('');
 	const loadingText = writable<string>('');
 	let query: string = '';
 	let csvDownloadUrl: string = '';
+	let xlsDownloadUrl: string = '';
 	let kmlDownloadUrl: string = '';
 	let interval: number | undefined;
 
@@ -38,6 +39,7 @@
 		errorMessage.set('');
 		loadingText.set('Processing');
 		csvDownloadUrl = '';
+		xlsDownloadUrl = '';
 		kmlDownloadUrl = '';
 		startLoadingAnimation();
 
@@ -46,6 +48,8 @@
 			if (data && data.length > 0) {
 				// Process data for CSV
 				csvDownloadUrl = exportCSV(data);
+				// Process data for XLS
+				xlsDownloadUrl = exportXLS(data);
 				// Process data for KML
 				kmlDownloadUrl = query.includes('GetSearchResults') ? exportKML(data) : '';
 			} else {
@@ -87,10 +91,13 @@
 			{#if csvDownloadUrl}
 				<a href={csvDownloadUrl} class="download-links" download="BMLT_data.csv">Download CSV</a><br />
 			{/if}
+			{#if xlsDownloadUrl}
+				<a href={xlsDownloadUrl} class="download-links" download="BMLT_data.xls">Download XLS</a><br />
+			{/if}
 			{#if kmlDownloadUrl}
 				<a href={kmlDownloadUrl} class="download-links" download="BMLT_data.kml">Download KML</a>
 			{/if}
-			<div id="description">Converts BMLT data from JSON to CSV or KML</div>
+			<div id="description">Converts BMLT data from JSON to CSV, XLS or KML</div>
 		</div>
 		<div id="footer">
 			<a href="https://github.com/bmlt-enabled/bmlt-data-converter/issues" class="footer-link" target="_blank">Issues?</a>

src/lib/DataUtils.ts

@@ -1,4 +1,5 @@
 import fetchJsonp from 'fetch-jsonp';
+import * as XLSX from 'xlsx';
 
 interface Meeting {
 	meeting_name: string;
@@ -70,6 +71,38 @@ export function exportCSV(data: any[]): string {
 	return URL.createObjectURL(blob);
 }
 
+export function exportXLS(data: any[]): string {
+	if (!Array.isArray(data) || data.length === 0) {
+		throw new Error('No data found');
+	}
+
+	const processedData = data.map((row) =>
+		Object.keys(row).reduce((acc, key) => {
+			let value: string | number = row[key];
+			if (typeof value === 'string' && value.includes('#@-@#')) {
+				[, value] = value.split('#@-@#');
+			}
+			acc[key] = value;
+			return acc;
+		}, {} as any)
+	);
+
+	const wb = XLSX.utils.book_new();
+	const ws = XLSX.utils.json_to_sheet(processedData);
+	XLSX.utils.book_append_sheet(wb, ws, 'Data');
+	const wbout = XLSX.write(wb, { bookType: 'xls', type: 'binary' });
+
+	function s2ab(s: string): ArrayBuffer {
+		const buf = new ArrayBuffer(s.length);
+		const view = new Uint8Array(buf);
+		for (let i = 0; i < s.length; i++) view[i] = s.charCodeAt(i) & 0xff;
+		return buf;
+	}
+
+	const blob = new Blob([s2ab(wbout)], { type: 'application/vnd.ms-excel' });
+	return URL.createObjectURL(blob);
+}
+
 export function exportKML(data: Meeting[]): string {
 	const placemarks = data.map(createPlacemark).filter(Boolean).join('\n');