refactor(splash): encapsulate auth logic in SplashButton for SSR support

This commit is contained in:
2026-06-09 18:59:34 +08:00
parent a5d8214650
commit 199a14650e
4 changed files with 55 additions and 58 deletions
+3 -2
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@@ -1,11 +1,12 @@
"use client";
/**
* 500px 移动端 Shell
* 500px 移动端 ShellServer Component
*
* 原始 Dart: 每个屏幕的 `Scaffold → SafeArea → Center → ConstrainedBox(maxWidth: 500)` 模式
* `Breakpoints.mobileMaxWidth = 500.0`)。
*
* 集中封装,调用方仅需 `<MobileShell>{...}</MobileShell>` 即可获得统一的移动端宽度约束。
*
* 本组件无 hooks,可作为 Server Component 直接 SSR。
*/
import type { ReactNode } from "react";
+42 -16
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@@ -5,36 +5,63 @@
* 原始 Dart: lib/ui/splash/widgets/splash_button.dart
* `Row(children: [Skip 文本, SizedBox 26, Facebook 登录按钮])`
*
* 关键对齐点
* 本组件是 splash 鉴权流程的**自治单元**
* - 直接消费 `useAuthGate` / `useAuthState` / `useAuthDispatch`
* - 直接消费 `useChatDispatch` / `useUserDispatch`(登录成功后初始化)
* - 自管路由跳转(已登录 / 登录成功 → /chat)
* - Skip 用 `<Link>` 保留 SPA 体验
*
* 设计要点:
* - 仅两个元素:Skip 文本 + Facebook 登录按钮
* - 居中布局 (MainAxisAlignment.center)
* - Facebook 按钮:带渐变(primaryGradient+ 圆角 24 + 高度 48
* - 加载中:按钮内显示 spinner
*
* Skip 按钮使用 `<Link>` 而非 `<button onClick>`
* - 保留 Next.js SPA 体验 + prefetch
* - 避免编程式 `router.push`(消除水合后副作用)
* - 右键"在新标签页打开"等浏览器行为自然支持
*/
import Link from "next/link";
import { useRouter } from "next/navigation";
import { useEffect, useRef } from "react";
import { useAuthState, useAuthDispatch } from "@/stores/auth/auth-context";
import { useChatDispatch } from "@/stores/chat/chat-context";
import { useUserDispatch } from "@/stores/user/user-context";
import { useAuthGate } from "@/lib/auth/use-auth-gate";
import { ROUTES } from "@/lib/routes";
import { LoadingIndicator } from "@/app/_components/core/loading-indicator";
import styles from "./splash-button.module.css";
export interface SplashButtonProps {
/** Skip 链接的目标路由(href */
skipHref: string;
onFacebookLogin: () => void;
/** Skip 链接的目标路由(默认 /chat */
skipHref?: string;
}
export function SplashButton({
skipHref,
onFacebookLogin,
}: SplashButtonProps) {
export function SplashButton({ skipHref = ROUTES.chat }: SplashButtonProps) {
// ===== 鉴权状态 =====
const { isAuthed } = useAuthGate();
const state = useAuthState();
const dispatch = useAuthDispatch();
const authDispatch = useAuthDispatch();
const isLoading = state.isLoading;
// ===== 跨 store 初始化(登录成功后触发) =====
const chatDispatch = useChatDispatch();
const userDispatch = useUserDispatch();
const router = useRouter();
const wasSuccess = useRef(false);
// 已登录时跳 /chat
useEffect(() => {
if (isAuthed) router.replace(ROUTES.chat);
}, [isAuthed, router]);
// 登录成功跳 /chat + 通知 chat/user 初始化
useEffect(() => {
if (state.isSuccess && !wasSuccess.current) {
wasSuccess.current = true;
chatDispatch({ type: "ChatAuthStatusChanged" });
userDispatch({ type: "UserInit" });
router.replace(ROUTES.chat);
}
}, [state.isSuccess, chatDispatch, userDispatch, router]);
return (
<div className={styles.wrapper}>
{/* Skip 文本链接(next/link 渲染为 <a>,保留 SPA 体验) */}
@@ -54,8 +81,7 @@ export function SplashButton({
<button
type="button"
onClick={() => {
dispatch({ type: "AuthFacebookLoginSubmitted" });
onFacebookLogin();
authDispatch({ type: "AuthFacebookLoginSubmitted" });
}}
disabled={isLoading}
className={styles.facebookButton}
+10 -38
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@@ -1,10 +1,13 @@
"use client";
/**
* Splash 屏幕(纯布局 / Server Component
*
* 鉴权流程逻辑已封装到 `<SplashButton>` 内部(client 组件):
* - 已登录检测 / 登录成功跳转 / Facebook 登录 dispatch
* - 跨 store 初始化(ChatAuthStatusChanged / UserInit
*
* 本组件职责:纯 JSX 布局,无 hooks → 可作为 Server Component 直接 SSR。
*/
import { useAuthState } from "@/stores/auth/auth-context";
import { useChatDispatch } from "@/stores/chat/chat-context";
import { useUserDispatch } from "@/stores/user/user-context";
import { useAuthGate } from "@/lib/auth/use-auth-gate";
import { ROUTES } from "@/lib/routes";
import { MobileShell } from "@/app/_components/core/mobile-shell";
import { SplashBackground } from "./splash-background";
@@ -14,32 +17,6 @@ import { SplashButton } from "./splash-button";
import styles from "./splash-screen.module.css";
export function SplashScreen() {
// useAuthGate 仍消费(仅读取 isAuthed 用于子组件 gating,不触发跳转)
useAuthGate();
// 以下 state/dispatch 当前未在本组件消费;保留以便未来按状态驱动的跳转
// 重新启用时再解注释 useEffect 即可。
// eslint-disable-next-line @typescript-eslint/no-unused-vars
const state = useAuthState();
// eslint-disable-next-line @typescript-eslint/no-unused-vars
const chatDispatch = useChatDispatch();
// eslint-disable-next-line @typescript-eslint/no-unused-vars
const userDispatch = useUserDispatch();
// 已登录时跳 /chat(已注释:改由 SplashButton 的 Link + 路由守卫统一处理)
// useEffect(() => {
// if (isAuthed) router.replace(ROUTES.chat);
// }, [isAuthed, router]);
// 登录成功跳 /chat(已注释:改由 SplashButton 的 Link + 路由守卫统一处理)
// useEffect(() => {
// if (state.isSuccess && !wasSuccess.current) {
// wasSuccess.current = true;
// chatDispatch({ type: "ChatAuthStatusChanged" });
// userDispatch({ type: "UserInit" });
// router.replace(ROUTES.chat);
// }
// }, [state.isSuccess, chatDispatch, userDispatch, router]);
return (
<MobileShell background="var(--color-sidebar-background)">
<div className={styles.wrapper}>
@@ -51,12 +28,7 @@ export function SplashScreen() {
<div className={styles.spacer} />
<SplashContent />
<div className={styles.buttonArea}>
<SplashButton
skipHref={ROUTES.chat}
onFacebookLogin={() => {
/* Facebook 登录触发由 SplashButton 内部 dispatch */
}}
/>
<SplashButton />
</div>
<p className={styles.bottom}>
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-2
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@@ -1,5 +1,3 @@
"use client";
import { SplashScreen } from "@/app/splash/components/splash-screen";
export default function SplashPage() {