Reconstruct

src/decrypt/util.js

@@ -0,0 +1,51 @@
+export {GetArrayBuffer, GetFileInfo, GetCoverURL, AudioMimeType}
+
+// Also a new draft API: blob.arrayBuffer()
+async function GetArrayBuffer(blobObject) {
+    return await new Promise(resolve => {
+        const reader = new FileReader();
+        reader.onload = (e) => {
+            resolve(e.target.result);
+        };
+        reader.readAsArrayBuffer(blobObject);
+    });
+}
+
+const AudioMimeType = {
+    mp3: "audio/mpeg",
+    flac: "audio/flac",
+    m4a: "audio/mp4",
+    ogg: "audio/ogg"
+};
+
+function GetFileInfo(artist, title, filenameNoExt, ext) {
+    let newArtist = "", newTitle = "";
+    let filenameArray = filenameNoExt.split("-");
+    if (filenameArray.length > 1) {
+        newArtist = filenameArray[0].trim();
+        newTitle = filenameArray[1].trim();
+    } else if (filenameArray.length === 1) {
+        newTitle = filenameArray[0].trim();
+    }
+
+    if (typeof artist == "string" && artist !== "") {
+        newArtist = artist;
+    }
+    if (typeof title == "string" && title !== "") {
+        newTitle = title;
+    }
+    let newFilename = newArtist + " - " + newTitle + "." + ext;
+    return {artist: newArtist, title: newTitle, filename: newFilename};
+}
+
+/**
+ * @return {string}
+ */
+function GetCoverURL(metadata) {
+    let pic_url = "";
+    if (metadata.common.picture !== undefined && metadata.common.picture.length > 0) {
+        let pic = new Blob([metadata.common.picture[0].data], {type: metadata.common.picture[0].format});
+        pic_url = URL.createObjectURL(pic);
+    }
+    return pic_url;
+}