wip add button and feed stuff

src/App.tsx

@@ -1,10 +1,12 @@
-import { AuthorPage } from './pages/AuthorPage.tsx'
 import { BrowserRouter, Route, Routes } from 'react-router'
+import HomePage from './pages/HomePage.tsx'
+import AuthorPage from './pages/AuthorPage.tsx'
 
 function App() {
   return (
     <BrowserRouter>
       <Routes>
+        <Route path={'/'} element={<HomePage />} />
         <Route path="/u/:username" element={<AuthorPage />} />
       </Routes>
     </BrowserRouter>

src/api/api.ts

@@ -8,17 +8,35 @@ console.debug('API HOST IS', ApiHost)
 
 export async function loadPostsForAuthor(
   authorId: string,
-  count?: number,
-  cursor?: string,
+  cursor: string | null,
+  amount: number | null,
 ): Promise<components['schemas']['GetAuthorPostsResponse']> {
   const url = new URL(`authors/${authorId}/posts`, ApiHost)
-  if (count != null) url.searchParams.set('count', count.toString())
+  if (amount != null) url.searchParams.set('amount', amount.toString())
+
+  if (cursor != null) url.searchParams.set('cursor', cursor)
+
+  const res = await doGetRequest(url)
+
+  return res as components['schemas']['GetAuthorPostsResponse']
+}
+
+export async function loadPublicFeed(
+  cursor: string | null,
+  amount: number | null,
+): Promise<components['schemas']['GetAllPublicPostsResponse']> {
+  const url = new URL(`posts`, ApiHost)
+  if (amount != null) url.searchParams.set('amount', amount.toString())
 
   if (cursor) url.searchParams.set('cursor', cursor)
 
-  const request = new Request(url)
+  const res = await doGetRequest(url)
 
-  const response = await fetch(request)
+  return res as components['schemas']['GetAllPublicPostsResponse']
+}
+
+async function doGetRequest(url: URL): Promise<unknown> {
+  const response = await fetch(new Request(url))
 
   if (!response.ok) throw new Error(await response.text())
 

src/api/schema.ts

@@ -6,7 +6,31 @@ export interface paths {
       path?: never
       cookie?: never
     }
-    get?: never
+    get: {
+      parameters: {
+        query?: {
+          Cursor?: string
+          Amount?: number
+        }
+        header?: never
+        path?: never
+        cookie?: never
+      }
+      requestBody?: never
+      responses: {
+        /** @description OK */
+        200: {
+          headers: {
+            [name: string]: unknown
+          }
+          content: {
+            'text/plain': components['schemas']['GetAllPublicPostsResponse']
+            'application/json': components['schemas']['GetAllPublicPostsResponse']
+            'text/json': components['schemas']['GetAllPublicPostsResponse']
+          }
+        }
+      }
+    }
     put?: never
     post: {
       parameters: {
@@ -53,7 +77,7 @@ export interface paths {
       parameters: {
         query?: {
           Cursor?: string
-          Count?: number
+          Amount?: number
         }
         header?: never
         path: {
@@ -106,9 +130,26 @@ export interface components {
       /** Format: uuid */
       postId: string
     }
+    GetAllPublicPostsResponse: {
+      posts: components['schemas']['PublicPostDto'][]
+    }
     GetAuthorPostsResponse: {
       posts: components['schemas']['AuthorPostDto'][]
     }
+    PublicPostAuthorDto: {
+      /** Format: uuid */
+      authorId: string
+      username: string
+    }
+    PublicPostDto: {
+      authorDto: components['schemas']['PublicPostAuthorDto']
+      /** Format: uuid */
+      postId: string
+      content: string
+      media: string[]
+      /** Format: date-time */
+      createdAt: string
+    }
   }
   responses: never
   parameters: never

src/components/PostsFeed.tsx

@@ -5,17 +5,7 @@ interface PostsFeedProps {
   posts: Post[]
 }
 
-export function PostsFeed({ posts }: PostsFeedProps) {
-  const formatDate = (date: Temporal.PlainDateTime) => {
-    return date.toLocaleString('en-US', {
-      year: 'numeric',
-      month: 'short',
-      day: 'numeric',
-      hour: '2-digit',
-      minute: '2-digit',
-    })
-  }
-
+export default function PostsFeed({ posts }: PostsFeedProps) {
   return (
     <div className="flex flex-col gap-6 w-full">
       {posts.map((post) => (
@@ -36,3 +26,13 @@ export function PostsFeed({ posts }: PostsFeedProps) {
     </div>
   )
 }
+
+function formatDate(date: Temporal.PlainDateTime) {
+  return date.toLocaleString('en-US', {
+    year: 'numeric',
+    month: 'short',
+    day: 'numeric',
+    hour: '2-digit',
+    minute: '2-digit',
+  })
+}

src/hooks/useAsyncData.ts

@@ -1,7 +1,9 @@
 import { useEffect, useState } from 'react'
 
-export function useAsyncState<T>(loader: () => Promise<T>): T | undefined {
-  const [state, setState] = useState<T>()
+export function useAsyncState<T>(loader: () => Promise<T>): T | undefined
+export function useAsyncState<T>(loader: () => Promise<T>, defaultValue: T): T
+export function useAsyncState<T>(loader: () => Promise<T>, defaultValue?: T): T | undefined {
+  const [state, setState] = useState<T>(defaultValue as T)
 
   useEffect(() => {
     setTimeout(async () => {

src/index.css

@@ -6,11 +6,4 @@
     text-rendering: optimizeLegibility;
     -webkit-font-smoothing: antialiased;
     -moz-osx-font-smoothing: grayscale;
-}
-
-
-body {
-    margin: 0;
-    width: 100vw;
-    height: 100vh;
 }

src/pages/AuthorPage.tsx

@@ -1,25 +1,20 @@
-import { PostsFeed } from '../components/PostsFeed.tsx'
 import { useCallback } from 'react'
 import { useParams } from 'react-router'
 import { loadPostsForAuthor } from '../api/api.ts'
-import { useAsyncState } from '../hooks/useAsyncData.ts'
 import { Post } from '../model/posts/posts.ts'
+import './FeedView.css'
+import FeedView from './FeedView.tsx'
 
-export function AuthorPage() {
+export default function AuthorPage() {
   const { username } = useParams()
 
-  const fetchPosts = useCallback(async () => {
-    const result = await loadPostsForAuthor(username!)
-    return result.posts.map((post) => Post.fromDto(post))
-  }, [username])
-
-  const posts = useAsyncState(fetchPosts)
-
-  return (
-    <main className={`w-full max-w-full md:flex md:justify-center`}>
-      <div className="w-full md:w-lg md:max-w-lg md:ml-8">
-        <PostsFeed posts={posts ?? []} />
-      </div>
-    </main>
+  const fetchPosts = useCallback(
+    async (cursor: string | null, amount: number | null) => {
+      const result = await loadPostsForAuthor(username!, cursor, amount)
+      return result.posts.map((post) => Post.fromDto(post))
+    },
+    [username],
   )
+
+  return <FeedView loadPosts={fetchPosts} />
 }

src/pages/FeedView.css

@@ -0,0 +1,6 @@
+@media (width >= 48rem) {
+    main {
+        display: grid;
+        grid-template-columns: 1.618fr 1fr;
+    }
+}

src/pages/FeedView.tsx

@@ -0,0 +1,94 @@
+import { Post } from '../model/posts/posts.ts'
+import PostsFeed from '../components/PostsFeed.tsx'
+import { useCallback, useEffect, useRef, useState } from 'react'
+import './FeedView.css'
+
+// Stub for spinner component
+const Spinner = () => (
+  <div className="animate-spin h-5 w-5 border-2 border-gray-500 rounded-full border-t-transparent"></div>
+)
+
+const PageSize = 2
+
+interface FeedViewProps {
+  loadPosts: (cursor: string | null, amount: number) => Promise<Post[]>
+}
+export default function FeedView({ loadPosts }: FeedViewProps) {
+  const [pages, setPages] = useState<Post[][]>([])
+
+  const posts = pages.flat()
+
+  const [hasMore, setHasMore] = useState(true)
+  const cursor = useRef<string | null>(null)
+  const [isLoading, setIsLoading] = useState(false)
+  const loading = useRef(false)
+
+  const loadNextPage = useCallback(async () => {
+    if (loading.current) return
+
+    loading.current = true
+    setIsLoading(true)
+
+    try {
+      const page = await loadPosts(cursor.current, PageSize)
+
+      if (page.length < PageSize) {
+        setHasMore(false)
+      }
+
+      cursor.current = page.at(-1)?.postId ?? null
+
+      setPages((prev) => [...prev, page])
+    } finally {
+      setIsLoading(false)
+      loading.current = false
+    }
+  }, [loadPosts])
+
+  useEffect(() => {
+    const timeoutId = setTimeout(async () => {
+      await loadNextPage()
+    })
+
+    return () => {
+      clearTimeout(timeoutId)
+    }
+  }, [loadNextPage])
+
+  const loadButtonState = isLoading ? 'loading' : hasMore ? 'ready' : 'done'
+
+  return (
+    <main className={`w-full max-w-full px-12 py-6`}>
+      <div className={`col-start-1`}>
+        <PostsFeed posts={posts} />
+        <LoadMoreButton state={loadButtonState} onClick={loadNextPage} />
+      </div>
+    </main>
+  )
+}
+
+interface LoadMoreButtonProps {
+  state: 'ready' | 'loading' | 'done'
+  onClick: () => void
+}
+
+function LoadMoreButton({ state, onClick }: LoadMoreButtonProps) {
+  const buttonClasses =
+    'w-full py-3 px-4 bg-gray-100 hover:bg-gray-200 text-gray-800 rounded-md flex items-center justify-center disabled:opacity-70'
+  switch (state) {
+    case 'done':
+      return <div className="text-center text-gray-400 py-4">that's all...</div>
+    case 'loading':
+      return (
+        <button disabled={true} className={buttonClasses}>
+          <Spinner />
+        </button>
+      )
+    case 'ready':
+      return (
+        <button className={buttonClasses} onClick={onClick}>
+          Load more
+        </button>
+      )
+  }
+}

src/pages/HomePage.tsx

@@ -0,0 +1,14 @@
+import { useCallback } from 'react'
+import { Post } from '../model/posts/posts.ts'
+import './FeedView.css'
+import { loadPublicFeed } from '../api/api.ts'
+import FeedView from './FeedView.tsx'
+
+export default function HomePage() {
+  const fetchPosts = useCallback(async (cursor: string | null, amount: number | null) => {
+    const result = await loadPublicFeed(cursor, amount)
+    return result.posts.map((post) => Post.fromDto(post))
+  }, [])
+
+  return <FeedView loadPosts={fetchPosts} />
+}

tsconfig.app.json

@@ -1,9 +1,9 @@
 {
   "compilerOptions": {
     "tsBuildInfoFile": "./node_modules/.tmp/tsconfig.app.tsbuildinfo",
-    "target": "ES2020",
+    "target": "ESNext",
     "useDefineForClassFields": true,
-    "lib": ["ES2020", "DOM", "DOM.Iterable"],
+    "lib": ["ESNext", "DOM", "DOM.Iterable"],
     "module": "ESNext",
     "skipLibCheck": true,