1 files changed, 8 insertions, 21 deletions

diff --git a/ext/js/background/backend.js b/ext/js/background/backend.js
index 881cd241..b0c0a36d 100644
--- a/ext/js/background/backend.js
+++ b/ext/js/background/backend.js
@@ -537,24 +537,16 @@ export class Backend {
 
     /**
      * @param {import('anki').Note[]} notes
-     * @returns {Promise<({ canAdd: true; } | { canAdd: false; error: string; })[]>}
+     * @returns {Promise<import('backend').CanAddResults>}
      */
-    async detectDuplicateNotes(notes) {
+    async partitionAddibleNotes(notes) {
         // `allowDuplicate` is on for all notes by default, so we temporarily set it to false
         // to check which notes are duplicates.
         const notesNoDuplicatesAllowed = notes.map((note) => ({...note, options: {...note.options, allowDuplicate: false}}));
 
-        return await this._anki.canAddNotesWithErrorDetail(notesNoDuplicatesAllowed);
-    }
-
-    /**
-     * Partitions notes between those that can / cannot be added.
-     * It further sets the `isDuplicate` strings for notes that have a duplicate.
-     * @param {import('anki').Note[]} notes
-     * @returns {Promise<import('backend').CanAddResults>}
-     */
-    async partitionAddibleNotes(notes) {
-        const canAddResults = await this.detectDuplicateNotes(notes);
+        // If only older AnkiConnect available, use `canAddNotes`.
+        const withDuplicatesAllowed = await this._anki.canAddNotes(notes);
+        const noDuplicatesAllowed = await this._anki.canAddNotes(notesNoDuplicatesAllowed);
 
         /** @type {{ note: import('anki').Note, isDuplicate: boolean }[]} */
         const canAddArray = [];
@@ -562,16 +554,11 @@ export class Backend {
         /** @type {import('anki').Note[]} */
         const cannotAddArray = [];
 
-        for (let i = 0; i < canAddResults.length; i++) {
-            const result = canAddResults[i];
-
-            // If the note is a duplicate, the error is "cannot create note because it is a duplicate".
-            if (result.canAdd) {
+        for (let i = 0; i < withDuplicatesAllowed.length; i++) {
+            if (withDuplicatesAllowed[i] === noDuplicatesAllowed[i]) {
                 canAddArray.push({note: notes[i], isDuplicate: false});
-            } else if (result.error.endsWith('duplicate')) {
-                canAddArray.push({note: notes[i], isDuplicate: true});
             } else {
-                cannotAddArray.push(notes[i]);
+                canAddArray.push({note: notes[i], isDuplicate: true});
             }
         }