Function deleteSession

app/store/chat.ts:337–378

(index: number)

      },

      deleteSession(index: number) {
        const deletingLastSession = get().sessions.length === 1;
        const deletedSession = get().sessions.at(index);

        if (!deletedSession) return;

        const sessions = get().sessions.slice();
        sessions.splice(index, 1);

        const currentIndex = get().currentSessionIndex;
        let nextIndex = Math.min(
          currentIndex - Number(index < currentIndex),
          sessions.length - 1,
        );

        if (deletingLastSession) {
          nextIndex = 0;
          sessions.push(createEmptySession());
        }

        // for undo delete action
        const restoreState = {
          currentSessionIndex: get().currentSessionIndex,
          sessions: get().sessions.slice(),
        };

        set(() => ({
          currentSessionIndex: nextIndex,
          sessions,
        }));

        showToast(
          Locale.Home.DeleteToast,
          {
            text: Locale.Home.Revert,
            onClick() {
              set(() => restoreState);
            },
          },
          5000,
        );
      },

      currentSession() {
        let index = get().currentSessionIndex;