chore: convert JS to TS (#1934)

1 files changed, 59 insertions, 0 deletions

diff --git a/src/electron/ipc-api/download.ts b/src/electron/ipc-api/download.ts
new file mode 100644
index 000000000..822658f26
--- /dev/null
+++ b/src/electron/ipc-api/download.ts
@@ -0,0 +1,59 @@
+import { ipcMain, dialog, BrowserWindow } from 'electron';
+import { download } from 'electron-dl';
+import mime from 'mime-types';
+import { writeFileSync } from 'fs-extra';
+import { PathLike } from 'fs';
+
+const debug = require('debug')('Ferdi:ipcApi:download');
+
+function decodeBase64Image(dataString: string) {
+  const matches = dataString.match(/^data:([A-Za-z-+/]+);base64,(.+)$/);
+
+  if (matches?.length !== 3) {
+    return new Error('Invalid input string');
+  }
+
+  return Buffer.from(matches[2], 'base64');
+}
+
+export default (params: { mainWindow: BrowserWindow }) => {
+  ipcMain.on(
+    'download-file',
+    async (_event, { url, content, fileOptions = {} }) => {
+      const win = BrowserWindow.getFocusedWindow();
+
+      try {
+        if (!content) {
+          const dl = await download(win!, url, {
+            saveAs: true,
+          });
+          debug('File saved to', dl.savePath);
+        } else {
+          const extension = mime.extension(fileOptions.mime);
+          const filename = `${fileOptions.name}.${extension}`;
+
+          try {
+            const saveDialog = await dialog.showSaveDialog(params.mainWindow, {
+              defaultPath: filename,
+            });
+
+            if (saveDialog.canceled) return;
+
+            const binaryImage = decodeBase64Image(content);
+            writeFileSync(
+              saveDialog.filePath as PathLike,
+              binaryImage as unknown as string,
+              'binary',
+            );
+
+            debug('File blob saved to', saveDialog.filePath);
+          } catch (err) {
+            console.log(err);
+          }
+        }
+      } catch (e) {
+        console.error(e);
+      }
+    },
+  );
+};