feat: Added "Import" option in the account menu that allows you to import from plaintext/markdown files, Evernote exports, Simplenote exports, Google Keep exports and also convert Aegis exports to TokenVault notes

packages/ui-services/src/Import/PlaintextConverter/PlaintextConverter.ts

@@ -0,0 +1,36 @@
+import { ContentType } from '@standardnotes/common'
+import { parseFileName } from '@standardnotes/filepicker'
+import { DecryptedTransferPayload, NoteContent } from '@standardnotes/models'
+import { WebApplicationInterface } from '@standardnotes/services'
+import { readFileAsText } from '../Utils'
+
+export class PlaintextConverter {
+  constructor(protected application: WebApplicationInterface) {}
+
+  static isValidPlaintextFile(file: File): boolean {
+    return file.type === 'text/plain' || file.type === 'text/markdown'
+  }
+
+  async convertPlaintextFileToNote(file: File): Promise<DecryptedTransferPayload<NoteContent>> {
+    const content = await readFileAsText(file)
+
+    const { name } = parseFileName(file.name)
+
+    const createdAtDate = file.lastModified ? new Date(file.lastModified) : new Date()
+    const updatedAtDate = file.lastModified ? new Date(file.lastModified) : new Date()
+
+    return {
+      created_at: createdAtDate,
+      created_at_timestamp: createdAtDate.getTime(),
+      updated_at: updatedAtDate,
+      updated_at_timestamp: updatedAtDate.getTime(),
+      uuid: this.application.generateUUID(),
+      content_type: ContentType.Note,
+      content: {
+        title: name,
+        text: content,
+        references: [],
+      },
+    }
+  }
+}