feat(@tinacms/core): the MediaStore interface has a delete method

packages/@tinacms/core/src/media.ts

@@ -74,6 +74,11 @@ export interface MediaStore {
    */
   persist(files: MediaUploadOptions[]): Promise<Media[]>
 
+  /**
+   * Delete a media object from the store.
+   */
+  delete(media: Media): Promise<void>
+
   /**
    * Given a `src` string it returns a url for previewing that content.
    * This is helpful in cases where the file may not be available in production yet.
@@ -154,6 +159,24 @@ export class MediaManager implements MediaStore {
     }
   }
 
+  async delete(media: Media): Promise<void> {
+    try {
+      this.events.dispatch({ type: 'media:delete:start', media })
+      await this.store.delete(media)
+      this.events.dispatch({
+        type: 'media:delete:success',
+        media,
+      })
+    } catch (error) {
+      this.events.dispatch({
+        type: 'media:delete:failure',
+        media,
+        error,
+      })
+      throw error
+    }
+  }
+
   previewSrc = async (
     src: string,
     fieldName: string,