rebuild(stage-10): deliver mentor and unified llm streaming

next/frontend/src/shared/stores/ui.ts

@@ -3,6 +3,7 @@ import { ref } from "vue";
 
 export type DialogName = "profile" | "membership" | "password" | "search" | null;
 export type Theme = "light" | "dark";
+export type Confirmation = { title: string; message: string; confirmLabel: string };
 
 const THEME_KEY = "xiaobai-theme";
 
@@ -20,8 +21,10 @@ export function applyTheme(theme: Theme): void {
 export const useUiStore = defineStore("ui", () => {
   const theme = ref<Theme>(preferredTheme());
   const dialog = ref<DialogName>(null);
+  const confirmation = ref<Confirmation | null>(null);
   const toast = ref("");
   let toastTimer: ReturnType<typeof setTimeout> | undefined;
+  let confirmationResolve: ((value: boolean) => void) | undefined;
 
   function setTheme(next: Theme): void {
     theme.value = next;
@@ -34,6 +37,7 @@ export const useUiStore = defineStore("ui", () => {
   }
 
   function openDialog(name: Exclude<DialogName, null>): void {
+    resolveConfirmation(false);
     dialog.value = name;
   }
 
@@ -41,6 +45,21 @@ export const useUiStore = defineStore("ui", () => {
     dialog.value = null;
   }
 
+  function askConfirmation(value: Confirmation): Promise<boolean> {
+    resolveConfirmation(false);
+    dialog.value = null;
+    confirmation.value = value;
+    return new Promise((resolve) => {
+      confirmationResolve = resolve;
+    });
+  }
+
+  function resolveConfirmation(value: boolean): void {
+    confirmation.value = null;
+    confirmationResolve?.(value);
+    confirmationResolve = undefined;
+  }
+
   function showToast(message: string): void {
     toast.value = message;
     if (toastTimer) clearTimeout(toastTimer);
@@ -49,5 +68,8 @@ export const useUiStore = defineStore("ui", () => {
     }, 2200);
   }
 
-  return { theme, dialog, toast, setTheme, toggleTheme, openDialog, closeDialog, showToast };
+  return {
+    theme, dialog, confirmation, toast, setTheme, toggleTheme, openDialog, closeDialog,
+    askConfirmation, resolveConfirmation, showToast,
+  };
 });