feat: 全部下载

src/components/DownloadAll.tsx

@@ -0,0 +1,53 @@
+import { DecryptedAudioFile, selectFiles } from '~/features/file-listing/fileListingSlice';
+import { useAppSelector } from '~/hooks';
+
+export function DownloadAll() {
+  const files = useAppSelector(selectFiles);
+  const filesLength = Object.keys(files).length;
+  const onClickDownloadAll = async () => {
+    let dir: FileSystemDirectoryHandle | undefined;
+    let success = 0;
+    try {
+      dir = await window.showDirectoryPicker();
+    } catch (e) {
+      console.error(e);
+    }
+    for (const [_, file] of Object.entries(files)) {
+      try {
+        if (dir) {
+          await DownloadNew(dir, file);
+        } else {
+          await DownloadOld(file);
+        }
+        success++;
+      } catch (e) {
+        console.error('下载失败: ' + file.fileName, e);
+      }
+    }
+    alert('下载成功: ' + success + ',下载失败: ' + (filesLength - success));
+  };
+
+  return (
+    <button className="btn btn-primary" onClick={onClickDownloadAll}>
+      Download All
+    </button>
+  );
+}
+
+async function DownloadNew(dir: FileSystemDirectoryHandle, file: DecryptedAudioFile) {
+  const response = await fetch(file.decrypted);
+  const blob = await response.blob();
+  const fileHandle = await dir.getFileHandle(file.cleanName + '.' + file.ext, { create: true });
+  const writable = await fileHandle.createWritable();
+  await writable.write(blob);
+  await writable.close();
+}
+
+async function DownloadOld(file: DecryptedAudioFile) {
+  const a = document.createElement('a');
+  a.href = file.decrypted;
+  a.download = file.cleanName + '.' + file.ext;
+  document.body.append(a);
+  a.click();
+  a.remove();
+}