feat(stats): dashboard updates (#50)

stats/src/lib/delete-confirm.test.ts

@@ -1,6 +1,7 @@
 import assert from 'node:assert/strict';
 import test from 'node:test';
 import {
+  confirmBucketDelete,
   confirmDayGroupDelete,
   confirmEpisodeDelete,
   confirmSessionDelete,
@@ -54,6 +55,42 @@ test('confirmDayGroupDelete uses singular for one session', () => {
   }
 });
 
+test('confirmBucketDelete asks about merging multiple sessions of the same episode', () => {
+  const calls: string[] = [];
+  const originalConfirm = globalThis.confirm;
+  globalThis.confirm = ((message?: string) => {
+    calls.push(message ?? '');
+    return true;
+  }) as typeof globalThis.confirm;
+
+  try {
+    assert.equal(confirmBucketDelete('My Episode', 3), true);
+    assert.deepEqual(calls, [
+      'Delete all 3 sessions of "My Episode" from this day and all associated data?',
+    ]);
+  } finally {
+    globalThis.confirm = originalConfirm;
+  }
+});
+
+test('confirmBucketDelete uses a clean singular form for one session', () => {
+  const calls: string[] = [];
+  const originalConfirm = globalThis.confirm;
+  globalThis.confirm = ((message?: string) => {
+    calls.push(message ?? '');
+    return false;
+  }) as typeof globalThis.confirm;
+
+  try {
+    assert.equal(confirmBucketDelete('Solo Episode', 1), false);
+    assert.deepEqual(calls, [
+      'Delete this session of "Solo Episode" from this day and all associated data?',
+    ]);
+  } finally {
+    globalThis.confirm = originalConfirm;
+  }
+});
+
 test('confirmEpisodeDelete includes the episode title in the shared warning copy', () => {
   const calls: string[] = [];
   const originalConfirm = globalThis.confirm;