added search

src/util/downloader.ts

@@ -63,3 +63,27 @@ export async function findFileById(id: string): Promise<string> {
     });
 }
 
+export async function search(input: string) {
+    return await new Promise<string>((resolve, reject) => {
+        const ytDlpBin = process.env.YT_DLP_BIN_PATH! ?? "yt-dlp";
+        console.log(`search for ${input}`)
+        const search_url = spawn(ytDlpBin, [
+            "--skip-download",
+            "--print", "%(webpage_url)s",
+            `ytsearch: ${input}`
+        ]);
+
+        let out = "";
+
+        search_url.stdout.on("data", d => out += d.toString());
+        search_url.stderr.on("data", d => process.stderr.write(d));
+
+        search_url.on("close", code => {
+            if (code !== 0 || !out.trim()) {
+                reject(new Error("Search failed"));
+            } else {
+                resolve(out.trim());
+            }
+        });
+    });
+}