chore: redesign threads as a linear phpBB-style forum view (#300)

Co-authored-by: userAdityaa <aditya.chaudhary1558@gmail.com>
Co-committed-by: userAdityaa <aditya.chaudhary1558@gmail.com>

src/app/components/EventReply.svelte

@@ -1,15 +1,17 @@
 <script lang="ts">
   import {onMount} from "svelte"
   import {writable} from "svelte/store"
+  import type {TrustedEvent} from "@welshman/util"
   import {isMobile, preventDefault} from "@lib/html"
   import {fly} from "@lib/transition"
   import Paperclip from "@assets/icons/paperclip-2.svg?dataurl"
   import Icon from "@lib/components/Icon.svelte"
   import Button from "@lib/components/Button.svelte"
   import EditorContent from "@app/editor/EditorContent.svelte"
+  import ChatComposeParent from "@app/components/ChatComposeParent.svelte"
   import {publishComment} from "@app/comments"
   import {canEnforceNip70} from "@app/relays"
-  import {PROTECTED} from "@app/groups"
+  import {PROTECTED, prependParent} from "@app/groups"
   import {makeEditor} from "@app/editor"
   import {DraftKey} from "@app/drafts"
   import {pushToast} from "@app/toast"
@@ -18,8 +20,17 @@
     content?: string | object
   }
 
-  const {url, event, onClose, onSubmit} = $props()
-  const draftKey = new DraftKey<Values>(`reply:${event.id}`)
+  type Props = {
+    url: string
+    event: TrustedEvent
+    parent?: TrustedEvent
+    onClose: () => void
+    onClearParent?: () => void
+    onSubmit: (thunk: unknown) => void
+  }
+
+  const {url, event, parent, onClose, onClearParent, onSubmit}: Props = $props()
+  const draftKey = new DraftKey<Values>(`reply:${event.id}:${parent?.id || ""}`)
   const initialValues = draftKey.get()
   const shouldProtect = canEnforceNip70(url)
   const uploading = writable(false)
@@ -31,8 +42,8 @@
     if ($uploading) return
 
     const ed = await editor
-    const content = ed.getText({blockSeparator: "\n"}).trim()
-    const tags = ed.storage.nostr.getEditorTags()
+    let content = ed.getText({blockSeparator: "\n"}).trim()
+    let tags = ed.storage.nostr.getEditorTags()
 
     if (await shouldProtect) {
       tags.push(PROTECTED)
@@ -45,6 +56,10 @@
       })
     }
 
+    if (parent) {
+      ;({content, tags} = prependParent(parent, {content, tags}, url))
+    }
+
     draftKey.clear()
     onSubmit(publishComment({event, content, tags, relays: [url]}))
   }
@@ -87,6 +102,9 @@
   onsubmit={preventDefault(submit)}
   class="left-content bottom-sai right-sai fixed z-feature mb-14 md:mb-0 w-full md:w-auto pr-2">
   <div class="card2 mx-2 my-2 bg-alt shadow-md">
+    {#if parent}
+      <ChatComposeParent event={parent} clear={() => onClearParent?.()} verb="Replying to" />
+    {/if}
     <div class="relative">
       <div class="note-editor grow overflow-hidden">
         <EditorContent {autofocus} {editor} />

src/app/components/SpaceBar.svelte

@@ -29,20 +29,22 @@
     <Button onclick={back} class="place-self-start pr-3 md:hidden">
       <Icon icon={ArrowLeft} size={7} />
     </Button>
-    <div class="ellipsize whitespace-nowrap flex grow items-center justify-between gap-4">
-      <div class="flex flex-col">
-        <div class="flex gap-2 items-center">
-          <RelayIcon {url} size={5} class="rounded-full md:hidden" />
-          <div class="hidden md:contents">
+    <div class="flex grow items-center justify-between gap-4">
+      <div class="flex min-w-0 flex-col">
+        <div class="flex min-w-0 items-start gap-2">
+          <RelayIcon {url} size={5} class="shrink-0 rounded-full md:hidden" />
+          <div class="hidden shrink-0 md:flex md:items-center">
             {@render leading?.()}
           </div>
-          {@render title?.()}
+          <div class="min-w-0">
+            {@render title?.()}
+          </div>
         </div>
-        <div class="text-xs text-primary md:hidden">
+        <div class="text-xs text-primary pl-7 md:hidden">
           {displayRelayUrl(url)}
         </div>
       </div>
-      <div class="flex gap-2 items-start">
+      <div class="flex shrink-0 items-center gap-2">
         {@render action?.()}
       </div>
     </div>

src/app/components/ThreadBoard.svelte

@@ -0,0 +1,40 @@
+<script lang="ts">
+  import type {TrustedEvent} from "@welshman/util"
+  import RoomName from "@app/components/RoomName.svelte"
+  import ThreadBoardItem from "@app/components/ThreadBoardItem.svelte"
+
+  type Props = {
+    url: string
+    h: string
+    threads: TrustedEvent[]
+  }
+
+  const {url, h, threads}: Props = $props()
+</script>
+
+<section class="overflow-hidden rounded-box border border-base-content/15 bg-base-100 shadow-sm">
+  <header
+    class="flex items-center justify-between gap-2 border-b border-base-content/15 bg-base-200/70 px-4 py-2.5">
+    <h2 class="text-sm font-bold sm:text-base">
+      {#if h}
+        #<RoomName {url} {h} />
+      {:else}
+        General
+      {/if}
+    </h2>
+    <span class="text-xs opacity-60">
+      {threads.length}
+      {threads.length === 1 ? "topic" : "topics"}
+    </span>
+  </header>
+  <div
+    class="hidden border-b border-base-content/10 bg-base-200/40 px-4 py-2 text-xs font-bold uppercase tracking-wide opacity-60 sm:grid sm:grid-cols-[1fr_8rem_5rem_8rem] sm:gap-x-4">
+    <span>Topic</span>
+    <span>Author</span>
+    <span class="text-center">Replies</span>
+    <span class="text-right">Last post</span>
+  </div>
+  {#each threads as event (event.id)}
+    <ThreadBoardItem {url} {event} />
+  {/each}
+</section>

src/app/components/ThreadBoardItem.svelte

@@ -0,0 +1,48 @@
+<script lang="ts">
+  import {formatTimestamp, max} from "@welshman/lib"
+  import type {TrustedEvent} from "@welshman/util"
+  import {COMMENT, getTagValue} from "@welshman/util"
+  import Link from "@lib/components/Link.svelte"
+  import ProfileCircle from "@app/components/ProfileCircle.svelte"
+  import ProfileName from "@app/components/ProfileName.svelte"
+  import {deriveEventsForUrl} from "@app/repository"
+  import {makeThreadPath} from "@app/routes"
+
+  type Props = {
+    url: string
+    event: TrustedEvent
+  }
+
+  const {url, event}: Props = $props()
+
+  const filters = [{kinds: [COMMENT], "#E": [event.id]}]
+  const replies = deriveEventsForUrl(url, filters)
+  const replyCount = $derived($replies.length)
+  const lastActive = $derived(max([...$replies, event].map(e => e.created_at)))
+  const title = getTagValue("title", event.tags)
+</script>
+
+<Link
+  href={makeThreadPath(url, event.id)}
+  class="grid grid-cols-[1fr_auto] gap-x-3 gap-y-1 border-b border-base-content/10 px-3 py-3 transition-colors hover:bg-base-200/50 sm:grid-cols-[1fr_8rem_5rem_8rem] sm:items-center sm:gap-x-4 sm:px-4">
+  <div class="col-span-2 min-w-0 sm:col-span-1">
+    <p class="ellipsize text-sm font-bold sm:text-base">{title || "Untitled thread"}</p>
+    <p class="ellipsize mt-0.5 text-xs opacity-60 sm:hidden">
+      by <ProfileName pubkey={event.pubkey} {url} />
+    </p>
+  </div>
+  <div class="hidden items-center gap-2 sm:flex">
+    <ProfileCircle pubkey={event.pubkey} {url} size={6} />
+    <span class="ellipsize text-sm">
+      <ProfileName pubkey={event.pubkey} {url} />
+    </span>
+  </div>
+  <p class="text-right text-xs opacity-75 sm:text-center sm:text-sm">
+    <span class="opacity-60 sm:hidden">Replies · </span>
+    {replyCount}
+  </p>
+  <p class="text-right text-xs opacity-75 sm:text-sm">
+    <span class="opacity-60 sm:hidden">Last · </span>
+    {formatTimestamp(lastActive)}
+  </p>
+</Link>

src/app/components/ThreadPagination.svelte

@@ -0,0 +1,66 @@
+<script lang="ts">
+  import cx from "classnames"
+  import AltArrowLeft from "@assets/icons/alt-arrow-left.svg?dataurl"
+  import AltArrowRight from "@assets/icons/alt-arrow-right.svg?dataurl"
+  import DoubleAltArrowLeft from "@assets/icons/double-alt-arrow-left.svg?dataurl"
+  import DoubleAltArrowRight from "@assets/icons/double-alt-arrow-right.svg?dataurl"
+  import Icon from "@lib/components/Icon.svelte"
+  import Button from "@lib/components/Button.svelte"
+
+  type Props = {
+    page: number
+    pageCount: number
+    onPage: (page: number) => void
+  }
+
+  const {page, pageCount, onPage}: Props = $props()
+
+  const goFirst = () => onPage(1)
+  const goPrev = () => onPage(page - 1)
+  const goNext = () => onPage(page + 1)
+  const goLast = () => onPage(pageCount)
+  const goToPage = (target: number) => onPage(target)
+
+  const pages = $derived.by(() => {
+    if (pageCount <= 7) {
+      return Array.from({length: pageCount}, (_, i) => i + 1)
+    }
+
+    const result = new Set<number>([1, pageCount, page])
+
+    if (page > 2) result.add(page - 1)
+    if (page < pageCount - 1) result.add(page + 1)
+    if (page > 3) result.add(page - 2)
+    if (page < pageCount - 2) result.add(page + 2)
+
+    return Array.from(result).sort((a, b) => a - b)
+  })
+</script>
+
+<div class="flex flex-col items-center gap-3 border-t border-base-content/10 py-4">
+  <p class="text-sm opacity-75">Page {page} of {pageCount}</p>
+  <div class="join">
+    <Button class="btn join-item btn-sm" disabled={page <= 1} onclick={goFirst}>
+      <Icon icon={DoubleAltArrowLeft} size={4} />
+    </Button>
+    <Button class="btn join-item btn-sm" disabled={page <= 1} onclick={goPrev}>
+      <Icon icon={AltArrowLeft} size={4} />
+    </Button>
+    {#each pages as p, i (p)}
+      {#if i > 0 && p - pages[i - 1] > 1}
+        <Button class="btn join-item btn-sm btn-disabled" disabled>…</Button>
+      {/if}
+      <Button
+        class={cx("btn join-item btn-sm", page === p && "btn-primary")}
+        onclick={() => goToPage(p)}>
+        {p}
+      </Button>
+    {/each}
+    <Button class="btn join-item btn-sm" disabled={page >= pageCount} onclick={goNext}>
+      <Icon icon={AltArrowRight} size={4} />
+    </Button>
+    <Button class="btn join-item btn-sm" disabled={page >= pageCount} onclick={goLast}>
+      <Icon icon={DoubleAltArrowRight} size={4} />
+    </Button>
+  </div>
+</div>

src/app/components/ThreadPost.svelte

@@ -0,0 +1,93 @@
+<script lang="ts">
+  import {formatTimestamp} from "@welshman/lib"
+  import type {TrustedEvent} from "@welshman/util"
+  import {COMMENT} from "@welshman/util"
+  import {deriveHandleForPubkey, deriveProfileDisplay, displayHandle} from "@welshman/app"
+  import Reply from "@assets/icons/reply-2.svg?dataurl"
+  import LinkRound from "@assets/icons/link-round.svg?dataurl"
+  import Icon from "@lib/components/Icon.svelte"
+  import Button from "@lib/components/Button.svelte"
+  import ProfileCircle from "@app/components/ProfileCircle.svelte"
+  import ProfileDetail from "@app/components/ProfileDetail.svelte"
+  import NoteContent from "@app/components/NoteContent.svelte"
+  import Content from "@app/components/Content.svelte"
+  import CommentActions from "@app/components/CommentActions.svelte"
+  import ThreadActions from "@app/components/ThreadActions.svelte"
+  import {makeEventPermalink} from "@app/routes"
+  import {pushModal} from "@app/modal"
+  import {clip} from "@app/toast"
+
+  type Props = {
+    url: string
+    event: TrustedEvent
+    threadPubkey: string
+    onReply: (event: TrustedEvent) => void
+  }
+
+  const {url, event, threadPubkey, onReply}: Props = $props()
+
+  const profileDisplay = deriveProfileDisplay(event.pubkey, [url])
+  const handle = deriveHandleForPubkey(event.pubkey)
+  const isOp = event.pubkey === threadPubkey
+  const isComment = event.kind === COMMENT
+
+  const openProfile = () => pushModal(ProfileDetail, {pubkey: event.pubkey, url})
+
+  const copyPermalink = () => clip(makeEventPermalink(event, url))
+
+  const reply = () => onReply(event)
+</script>
+
+<article
+  id="post-{event.id}"
+  data-event={event.id}
+  class="border-b border-base-content/15 bg-base-100">
+  <div class="flex flex-col md:flex-row">
+    <aside
+      class="flex shrink-0 flex-row items-center gap-3 border-b border-base-content/10 bg-base-200/50 p-3 md:w-40 md:flex-col md:items-center md:border-b-0 md:border-r md:p-4 md:text-center">
+      <Button onclick={openProfile}>
+        <ProfileCircle pubkey={event.pubkey} {url} size={10} class="md:size-14" />
+      </Button>
+      <div class="flex min-w-0 flex-col gap-1 md:items-center">
+        <Button onclick={openProfile} class="text-bold ellipsize text-sm">
+          {$profileDisplay}
+        </Button>
+        {#if $handle}
+          <span class="ellipsize text-xs opacity-75">{displayHandle($handle)}</span>
+        {/if}
+        {#if isOp}
+          <span class="badge badge-primary badge-sm">OP</span>
+        {/if}
+      </div>
+    </aside>
+    <div class="flex min-w-0 grow flex-col">
+      <div
+        class="flex flex-wrap items-center justify-between gap-2 border-b border-base-content/10 bg-base-200/40 px-3 py-2 text-xs sm:px-4 sm:text-sm">
+        <span class="opacity-75">{formatTimestamp(event.created_at)}</span>
+        <Button class="btn btn-ghost btn-xs h-auto min-h-0 gap-1 px-1 py-0" onclick={copyPermalink}>
+          <Icon icon={LinkRound} size={3} />
+          Permalink
+        </Button>
+      </div>
+      <div class="px-3 py-4 sm:px-4">
+        {#if isComment}
+          <Content showEntire {event} {url} />
+        {:else}
+          <NoteContent showEntire {event} {url} />
+        {/if}
+      </div>
+      <div
+        class="flex shrink-0 flex-col gap-2 border-t border-base-content/10 bg-base-200/20 px-3 py-3 sm:flex-row sm:items-center sm:justify-between sm:px-4">
+        <Button class="btn btn-neutral btn-xs w-fit gap-1" onclick={reply}>
+          <Icon icon={Reply} size={4} />
+          Reply
+        </Button>
+        {#if isComment}
+          <CommentActions segment="threads" {event} {url} />
+        {:else}
+          <ThreadActions {event} {url} />
+        {/if}
+      </div>
+    </div>
+  </div>
+</article>