first commit

app.ts

@@ -0,0 +1,62 @@
+export default class App {
+    input: HTMLInputElement;
+    outputContainer: HTMLTextAreaElement;
+
+    constructor() {
+        this.input = document.getElementById('in') as HTMLInputElement;
+        this.outputContainer = document.getElementById('out') as HTMLTextAreaElement;
+        (document.getElementById("run") as HTMLButtonElement).onclick = this.run.bind(this);
+    }
+
+    async run() {
+        const promises: Promise<string>[] = [];
+        for (const file of this.input.files!) {
+            promises.push(this.parseFile(file));
+        }
+
+        const parts = await Promise.all(promises);
+
+        const output = new Blob([parts.join(' ')], { type: 'text/plain' });
+        const a = document.createElement('a');
+        a.href = URL.createObjectURL(output);
+        a.download = "result.txt";
+        a.click();
+    }
+
+    async parseFile(file: File) {
+        const xml = await file.text();
+        const parser = new DOMParser();
+        const doc = parser.parseFromString(xml, "text/xml");
+
+        const results: string[] = [];
+
+        for (const node of doc.getElementsByTagNameNS('*', 'tartalom')) {
+            let resolve: (value: string) => void, reject: (reason?: any) => void;
+            const resultPromise = new Promise<string>((res, rej) => {
+                resolve = res, reject = rej;
+            });
+
+            const worker = new Worker('worker.js');
+
+            worker.onmessage = (e) => {
+                resolve(e.data);
+            };
+
+            worker.onerror = (e) => {
+                reject(e.error);
+            }
+
+            worker.postMessage(node.textContent);
+
+            try {
+                results.push(await resultPromise);
+            } catch (e) {
+                console.error(e);
+            }
+        }
+
+        return results.join(' ');
+    }
+}
+
+new App();