add comment

2026-01-15 23:26:34 +09:00
parent 9980e596ca
commit 8945601aa1
16 changed files with 703 additions and 135 deletions
--- a/.gitignore
+++ b/.gitignore
@@ -3,4 +3,3 @@ dist
 node_modules
 package-lock.json
 repos
-content/
--- a/content/did:plc:vzsvtbtbnwn22xjqhcu3vd6y/ai.syui.log.post/3mchqlshygs2s.json
+++ b/content/did:plc:vzsvtbtbnwn22xjqhcu3vd6y/ai.syui.log.post/3mchqlshygs2s.json
@@ -0,0 +1,7 @@
+{
+  "uri": "at://did:plc:vzsvtbtbnwn22xjqhcu3vd6y/ai.syui.log.post/3mchqlshygs2s",
+  "cid": "bafyreiaww3o6uoayzosgkymc7cazaja6ebyw4ahtk3dpvqq5xd3m6juyz4",
+  "title": "ailogを作り直した",
+  "content": "## ailogとは\n\natprotoと連携するサイトジェネレータ。\n\n## ailogの使い方\n\n```sh\n$ git clone https://git.syui.ai/ai/log\n$ cd log\n$ cat public/config.json\n{\n  \"title\": \"syui.syui.ai\",\n  \"handle\": \"syui.syui.ai\",\n  \"collection\": \"ai.syui.log.post\",\n  \"network\": \"syu.is\",\n  \"color\": \"#0066cc\"\n}\n---\n$ npm run dev\n```\n\n## ailogのコンセプト\n\n1. at-browserを基本にする\n2. atproto oauthでログインする\n3. 記事をポストする\n\n## ailogの追加機能\n\n1. atproto recordからjsonをdownloadすると表示速度が上がる\n2. コメントはurlの言及を検索して表示",
+  "createdAt": "2026-01-15T13:59:52.367Z"
+}
--- a/content/did:plc:vzsvtbtbnwn22xjqhcu3vd6y/collections.json
+++ b/content/did:plc:vzsvtbtbnwn22xjqhcu3vd6y/collections.json
@@ -0,0 +1,11 @@
+[
+  "ai.syui.log",
+  "ai.syui.log.chat",
+  "ai.syui.log.post",
+  "ai.syui.rse.user",
+  "app.bsky.actor.profile",
+  "app.bsky.feed.post",
+  "app.bsky.feed.repost",
+  "app.bsky.graph.follow",
+  "chat.bsky.actor.declaration"
+]
--- a/content/did:plc:vzsvtbtbnwn22xjqhcu3vd6y/favicons/bsky.app.png
+++ b/content/did:plc:vzsvtbtbnwn22xjqhcu3vd6y/favicons/bsky.app.png
--- a/content/did:plc:vzsvtbtbnwn22xjqhcu3vd6y/favicons/syui.ai.png
+++ b/content/did:plc:vzsvtbtbnwn22xjqhcu3vd6y/favicons/syui.ai.png
--- a/content/did:plc:vzsvtbtbnwn22xjqhcu3vd6y/profile.json
+++ b/content/did:plc:vzsvtbtbnwn22xjqhcu3vd6y/profile.json
@@ -0,0 +1,21 @@
+{
+  "did": "did:plc:vzsvtbtbnwn22xjqhcu3vd6y",
+  "handle": "syui.syui.ai",
+  "displayName": "syui",
+  "avatar": "https://bsky.syu.is/img/avatar/plain/did:plc:vzsvtbtbnwn22xjqhcu3vd6y/bafkreigta4pf5h7uvx6jpfcm3d6aeq4g3qpsiqjdoeytnutwp6vwc2yo7u@jpeg",
+  "associated": {
+    "lists": 0,
+    "feedgens": 0,
+    "starterPacks": 0,
+    "labeler": false,
+    "activitySubscription": {
+      "allowSubscriptions": "followers"
+    }
+  },
+  "labels": [],
+  "createdAt": "2025-09-19T06:17:42.000Z",
+  "indexedAt": "2025-09-19T06:17:42.000Z",
+  "followersCount": 1,
+  "followsCount": 1,
+  "postsCount": 74
+}
--- a/public/config.json
+++ b/public/config.json
@@ -1,7 +1,8 @@
 {
  "title": "syui.ai",
-  "handle": "syui.ai",
+  "handle": "syui.syui.ai",
  "collection": "ai.syui.log.post",
-  "network": "bsky.social",
-  "color": "#0066cc"
+  "network": "syu.is",
+  "color": "#0066cc",
+  "siteUrl": "https://syui.ai"
 }
--- a/scripts/generate.ts
+++ b/scripts/generate.ts
@@ -1,38 +1,8 @@
 import * as fs from 'fs'
 import * as path from 'path'
 import { marked, Renderer } from 'marked'
-
-// Types
-interface AppConfig {
-  title: string
-  handle: string
-  collection: string
-  network: string
-  color?: string
-}
-
-interface Networks {
-  [key: string]: {
-    plc: string
-    bsky: string
-  }
-}
-
-interface Profile {
-  did: string
-  handle: string
-  displayName?: string
-  description?: string
-  avatar?: string
-}
-
-interface BlogPost {
-  uri: string
-  cid: string
-  title: string
-  content: string
-  createdAt: string
-}
+import type { AppConfig, Profile, BlogPost, Networks } from '../src/types.ts'
+import { escapeHtml } from '../src/lib/utils.ts'

 // Highlight.js for syntax highlighting (core + common languages only)
 let hljs: typeof import('highlight.js/lib/core').default
@@ -100,14 +70,6 @@ function setupMarked() {
  })
 }

-function escapeHtml(str: string): string {
-  return str
-    .replace(/&/g, '&amp;')
-    .replace(/</g, '&lt;')
-    .replace(/>/g, '&gt;')
-    .replace(/"/g, '&quot;')
-}
-
 function formatDate(dateStr: string): string {
  const date = new Date(dateStr)
  return date.toLocaleDateString('ja-JP', {
@@ -445,10 +407,23 @@ function generatePostListHtml(posts: BlogPost[]): string {
  return `<ul class="post-list">${items}</ul>`
 }

-function generatePostDetailHtml(post: BlogPost, handle: string, collection: string): string {
+// Map network to app URL for discussion links
+function getAppUrl(network: string): string {
+  if (network === 'syu.is') {
+    return 'https://syu.is'
+  }
+  return 'https://bsky.app'
+}
+
+function generatePostDetailHtml(post: BlogPost, handle: string, collection: string, network: string, siteUrl?: string): string {
  const rkey = post.uri.split('/').pop() || ''
  const jsonUrl = `/at/${handle}/${collection}/${rkey}/`
  const content = marked.parse(post.content) as string
+  // Use siteUrl from config, or construct from handle
+  const baseSiteUrl = siteUrl || `https://${handle}`
+  const postUrl = `${baseSiteUrl}/post/${rkey}/`
+  const appUrl = getAppUrl(network)
+  const searchUrl = `${appUrl}/search?q=${encodeURIComponent(postUrl)}`

  return `
    <article class="post-detail">
@@ -461,6 +436,15 @@ function generatePostDetailHtml(post: BlogPost, handle: string, collection: stri
      </header>
      <div class="post-content">${content}</div>
    </article>
+    <div class="discussion-section">
+      <a href="${searchUrl}" target="_blank" rel="noopener" class="discuss-link">
+        <svg width="20" height="20" viewBox="0 0 24 24" fill="currentColor">
+          <path d="M12 2C6.477 2 2 6.477 2 12c0 1.89.525 3.66 1.438 5.168L2.546 20.2A1.5 1.5 0 0 0 4 22h.5l2.83-.892A9.96 9.96 0 0 0 12 22c5.523 0 10-4.477 10-10S17.523 2 12 2z"/>
+        </svg>
+        Discuss on Bluesky
+      </a>
+      <div id="discussion-posts" class="discussion-posts" data-post-url="${escapeHtml(postUrl)}" data-app-url="${escapeHtml(appUrl)}"></div>
+    </div>
  `
 }

@@ -500,7 +484,7 @@ function generatePostPageContent(profile: Profile, post: BlogPost, config: AppCo
        ${generateServicesHtml(profile.did, config.handle, collections)}
      </section>
      <section id="content">
-        ${generatePostDetailHtml(post, config.handle, config.collection)}
+        ${generatePostDetailHtml(post, config.handle, config.collection, config.network, config.siteUrl)}
      </section>
    </main>
    ${generateFooterHtml(config.handle)}
@@ -595,27 +579,20 @@ async function generate() {
  const localPosts = localDid ? loadPostsFromFiles(localDid, config.collection) : []
  console.log(`Found ${localPosts.length} posts from local`)

-  // Merge: API is the source of truth for what exists
-  // - If post exists in API and local: use local (may have edits)
-  // - If post exists in API only: use API
-  // - If post exists in local only: skip (was deleted from API)
+  // Merge: API is the source of truth
+  // - If post exists in API: always use API (has latest edits)
+  // - If post exists in local only: keep if not deleted (for posts beyond API limit)
  const apiRkeys = new Set(apiPosts.map(p => p.uri.split('/').pop()))
-  const localRkeys = new Set(localPosts.map(p => p.uri.split('/').pop()))

-  // Local posts that still exist in API
-  const validLocalPosts = localPosts.filter(p => apiRkeys.has(p.uri.split('/').pop()))
-  // API posts that don't exist locally
-  const newApiPosts = apiPosts.filter(p => !localRkeys.has(p.uri.split('/').pop()))
+  // Local posts that don't exist in API (older posts beyond 100 limit)
+  // Note: these might be deleted posts, so we keep them cautiously
+  const oldLocalPosts = localPosts.filter(p => !apiRkeys.has(p.uri.split('/').pop()))

-  posts = [...validLocalPosts, ...newApiPosts].sort((a, b) =>
+  posts = [...apiPosts, ...oldLocalPosts].sort((a, b) =>
    new Date(b.createdAt).getTime() - new Date(a.createdAt).getTime()
  )

-  const deletedCount = localPosts.length - validLocalPosts.length
-  if (deletedCount > 0) {
-    console.log(`Skipped ${deletedCount} deleted posts (exist locally but not in API)`)
-  }
-  console.log(`Total ${posts.length} posts (${validLocalPosts.length} local + ${newApiPosts.length} new from API)`)
+  console.log(`Total ${posts.length} posts (${apiPosts.length} from API + ${oldLocalPosts.length} old local)`)

  // Create output directory
  const distDir = path.join(process.cwd(), 'dist')
--- a/src/components/atbrowser.ts
+++ b/src/components/atbrowser.ts
@@ -1,33 +1,38 @@
-import { describeRepo, listRecordsRaw, getRecordRaw, fetchLexicon, resolveHandle, getServiceInfo } from '../lib/api.js'
+import { describeRepo, listRecordsRaw, getRecordRaw, fetchLexicon, resolveHandle, getServiceInfo, resolvePds, getPlc } from '../lib/api.js'
 import { deleteRecord } from '../lib/auth.js'
+import { escapeHtml } from '../lib/utils.js'

 function extractRkey(uri: string): string {
  const parts = uri.split('/')
  return parts[parts.length - 1]
 }

-function formatDate(dateStr: string): string {
-  const date = new Date(dateStr)
-  return date.toLocaleDateString('ja-JP', {
-    year: 'numeric',
-    month: '2-digit',
-    day: '2-digit',
-  })
-}
-
-function escapeHtml(str: string): string {
-  return str
-    .replace(/&/g, '&amp;')
-    .replace(/</g, '&lt;')
-    .replace(/>/g, '&gt;')
-    .replace(/"/g, '&quot;')
-}
-
 async function renderServices(did: string, handle: string): Promise<string> {
-  const collections = await describeRepo(did)
+  const [collections, pds] = await Promise.all([
+    describeRepo(did),
+    resolvePds(did)
+  ])
+
+  // Server info section
+  const plcUrl = `${getPlc()}/${did}/log`
+  const serverHtml = `
+    <div class="server-info">
+      <h3>Server</h3>
+      <dl class="server-details">
+        <div class="server-row">
+          <dt>DID</dt>
+          <dd class="did-value"><a href="${plcUrl}" target="_blank" rel="noopener">${escapeHtml(did)}</a></dd>
+        </div>
+        <div class="server-row">
+          <dt>PDS</dt>
+          <dd class="pds-value"><a href="${escapeHtml(pds)}" target="_blank" rel="noopener">${escapeHtml(pds)}</a></dd>
+        </div>
+      </dl>
+    </div>
+  `

  if (collections.length === 0) {
-    return '<p class="no-data">No collections found</p>'
+    return serverHtml + '<p class="no-data">No collections found</p>'
  }

  // Group by service domain
@@ -57,6 +62,7 @@ async function renderServices(did: string, handle: string): Promise<string> {
  }).join('')

  return `
+    ${serverHtml}
    <div class="services-list">
      <h3>Services</h3>
      <ul class="service-list">${items}</ul>
@@ -99,7 +105,7 @@ async function renderCollections(did: string, handle: string, serviceDomain: str
  `
 }

-async function renderRecordList(did: string, handle: string, collection: string): Promise<string> {
+async function renderRecordList(did: string, handle: string, collection: string, canDelete: boolean): Promise<string> {
  const records = await listRecordsRaw(did, collection)

  if (records.length === 0) {
@@ -109,12 +115,16 @@ async function renderRecordList(did: string, handle: string, collection: string)
  const items = records.map(rec => {
    const rkey = extractRkey(rec.uri)
    const preview = rec.value.title || rec.value.text?.slice(0, 50) || rkey
+    const deleteBtn = canDelete
+      ? `<button class="delete-btn-small" data-collection="${collection}" data-rkey="${rkey}" title="Delete">×</button>`
+      : ''
    return `
-      <li class="record-item">
+      <li class="record-item" data-rkey="${rkey}">
        <a href="/at/${handle}/${collection}/${rkey}" class="record-link">
          <span class="record-rkey">${rkey}</span>
-          <span class="record-preview">${preview}</span>
+          <span class="record-preview">${escapeHtml(preview)}</span>
        </a>
+        ${deleteBtn}
      </li>
    `
  }).join('')
@@ -185,7 +195,7 @@ export async function mountAtBrowser(
      const info = getServiceInfo(collection)
      const backService = info ? info.domain : ''
      nav = `<a href="/at/${handle}/${backService}" class="back-link">← ${info?.name || 'Back'}</a>`
-      content = await renderRecordList(did, handle, collection)
+      content = await renderRecordList(did, handle, collection, canDelete)
    } else if (service) {
      nav = `<a href="/at/${handle}" class="back-link">← Services</a>`
      content = await renderCollections(did, handle, service)
@@ -195,7 +205,7 @@ export async function mountAtBrowser(

    container.innerHTML = nav + content

-    // Add delete button handler
+    // Add delete button handler (record detail page)
    const deleteBtn = container.querySelector('.delete-btn')
    if (deleteBtn) {
      deleteBtn.addEventListener('click', async (e) => {
@@ -206,14 +216,12 @@ export async function mountAtBrowser(

        if (!col || !rk) return

-        if (!confirm('Delete this record?')) return
-
        try {
          btn.disabled = true
          btn.textContent = 'Deleting...'
          await deleteRecord(col, rk)
-          // Go back to collection
-          window.location.href = `/at/${handle}/${col}`
+          // Re-render collection list (stay in browser mode)
+          await mountAtBrowser(container, handle, col, null, service, loginDid)
        } catch (err) {
          alert('Delete failed: ' + err)
          btn.disabled = false
@@ -221,6 +229,41 @@ export async function mountAtBrowser(
        }
      })
    }
+
+    // Add delete button handlers for list items
+    const deleteSmallBtns = container.querySelectorAll('.delete-btn-small')
+    deleteSmallBtns.forEach(btn => {
+      btn.addEventListener('click', async (e) => {
+        e.preventDefault()
+        e.stopPropagation()
+        const button = e.target as HTMLButtonElement
+        const col = button.dataset.collection
+        const rk = button.dataset.rkey
+
+        if (!col || !rk) return
+
+        try {
+          button.disabled = true
+          button.textContent = '...'
+          await deleteRecord(col, rk)
+          // Remove the item from the list
+          const listItem = button.closest('.record-item')
+          if (listItem) {
+            listItem.remove()
+            // Update record count
+            const countEl = container.querySelector('.record-count')
+            if (countEl) {
+              const remaining = container.querySelectorAll('.record-item').length
+              countEl.textContent = `${remaining} records`
+            }
+          }
+        } catch (err) {
+          alert('Delete failed: ' + err)
+          button.disabled = false
+          button.textContent = '×'
+        }
+      })
+    })
  } catch (err) {
    container.innerHTML = `<p class="error">Failed to load: ${err}</p>`
  }
--- a/src/components/discussion.ts
+++ b/src/components/discussion.ts
@@ -0,0 +1,87 @@
+import { searchPostsForUrl } from '../lib/api.js'
+import { escapeHtml } from '../lib/utils.js'
+
+// Map network to app URL
+export function getAppUrl(network: string): string {
+  if (network === 'syu.is') {
+    return 'https://syu.is'
+  }
+  return 'https://bsky.app'
+}
+
+function formatDate(dateStr: string): string {
+  const date = new Date(dateStr)
+  return date.toLocaleDateString('ja-JP', {
+    year: 'numeric',
+    month: '2-digit',
+    day: '2-digit',
+  })
+}
+
+function getPostUrl(uri: string, appUrl: string): string {
+  // at://did:plc:xxx/app.bsky.feed.post/rkey -> {appUrl}/profile/did:plc:xxx/post/rkey
+  const parts = uri.replace('at://', '').split('/')
+  if (parts.length >= 3) {
+    return `${appUrl}/profile/${parts[0]}/post/${parts[2]}`
+  }
+  return '#'
+}
+
+export function renderDiscussionLink(postUrl: string, appUrl: string = 'https://bsky.app'): string {
+  const searchUrl = `${appUrl}/search?q=${encodeURIComponent(postUrl)}`
+  return `
+    <div class="discussion-section">
+      <a href="${searchUrl}" target="_blank" rel="noopener" class="discuss-link">
+        <svg width="20" height="20" viewBox="0 0 24 24" fill="currentColor">
+          <path d="M12 2C6.477 2 2 6.477 2 12c0 1.89.525 3.66 1.438 5.168L2.546 20.2A1.5 1.5 0 0 0 4 22h.5l2.83-.892A9.96 9.96 0 0 0 12 22c5.523 0 10-4.477 10-10S17.523 2 12 2z"/>
+        </svg>
+        Discuss on Bluesky
+      </a>
+      <div id="discussion-posts" class="discussion-posts" data-app-url="${escapeHtml(appUrl)}"></div>
+    </div>
+  `
+}
+
+export async function loadDiscussionPosts(container: HTMLElement, postUrl: string, appUrl: string = 'https://bsky.app'): Promise<void> {
+  const postsContainer = container.querySelector('#discussion-posts') as HTMLElement
+  if (!postsContainer) return
+
+  // Get appUrl from data attribute if available
+  const dataAppUrl = postsContainer.dataset.appUrl
+  const effectiveAppUrl = dataAppUrl || appUrl
+
+  postsContainer.innerHTML = '<div class="loading-small">Loading...</div>'
+
+  const posts = await searchPostsForUrl(postUrl)
+
+  if (posts.length === 0) {
+    postsContainer.innerHTML = ''
+    return
+  }
+
+  const postsHtml = posts.slice(0, 10).map(post => {
+    const author = post.author
+    const avatar = author.avatar || ''
+    const displayName = author.displayName || author.handle
+    const handle = author.handle
+    const text = post.record?.text || ''
+    const createdAt = post.record?.createdAt || ''
+    const postLink = getPostUrl(post.uri, effectiveAppUrl)
+
+    return `
+      <a href="${postLink}" target="_blank" rel="noopener" class="discussion-post">
+        <div class="discussion-author">
+          ${avatar ? `<img src="${escapeHtml(avatar)}" class="discussion-avatar" alt="">` : ''}
+          <div class="discussion-author-info">
+            <span class="discussion-name">${escapeHtml(displayName)}</span>
+            <span class="discussion-handle">@${escapeHtml(handle)}</span>
+          </div>
+          <span class="discussion-date">${formatDate(createdAt)}</span>
+        </div>
+        <div class="discussion-text">${escapeHtml(text)}</div>
+      </a>
+    `
+  }).join('')
+
+  postsContainer.innerHTML = postsHtml
+}
--- a/src/components/posts.ts
+++ b/src/components/posts.ts
@@ -1,6 +1,8 @@
 import type { BlogPost } from '../types.js'
 import { putRecord } from '../lib/auth.js'
 import { renderMarkdown } from '../lib/markdown.js'
+import { escapeHtml } from '../lib/utils.js'
+import { renderDiscussionLink, loadDiscussionPosts, getAppUrl } from './discussion.js'

 function formatDate(dateStr: string): string {
  const date = new Date(dateStr)
@@ -11,14 +13,6 @@ function formatDate(dateStr: string): string {
  })
 }

-function escapeHtml(str: string): string {
-  return str
-    .replace(/&/g, '&amp;')
-    .replace(/</g, '&lt;')
-    .replace(/>/g, '&gt;')
-    .replace(/"/g, '&quot;')
-}
-
 export function mountPostList(container: HTMLElement, posts: BlogPost[]): void {
  if (posts.length === 0) {
    container.innerHTML = '<p class="no-posts">No posts yet</p>'
@@ -40,9 +34,11 @@ export function mountPostList(container: HTMLElement, posts: BlogPost[]): void {
  container.innerHTML = `<ul class="post-list">${html}</ul>`
 }

-export function mountPostDetail(container: HTMLElement, post: BlogPost, handle: string, collection: string, canEdit: boolean = false): void {
+export function mountPostDetail(container: HTMLElement, post: BlogPost, handle: string, collection: string, canEdit: boolean = false, siteUrl?: string, network: string = 'bsky.social'): void {
  const rkey = post.uri.split('/').pop() || ''
  const jsonUrl = `/at/${handle}/${collection}/${rkey}`
+  const postUrl = siteUrl ? `${siteUrl}/post/${rkey}` : `${window.location.origin}/post/${rkey}`
+  const appUrl = getAppUrl(network)

  const editBtn = canEdit ? `<button class="edit-btn" id="edit-btn">edit</button>` : ''

@@ -59,6 +55,8 @@ export function mountPostDetail(container: HTMLElement, post: BlogPost, handle:
      <div class="post-content" id="post-content">${renderMarkdown(post.content)}</div>
    </article>

+    ${renderDiscussionLink(postUrl, appUrl)}
+
    <div class="edit-form-container" id="edit-form-container" style="display: none;">
      <h3>Edit Post</h3>
      <form class="edit-form" id="edit-form">
@@ -72,6 +70,9 @@ export function mountPostDetail(container: HTMLElement, post: BlogPost, handle:
    </div>
  `

+  // Load discussion posts
+  loadDiscussionPosts(container, postUrl)
+
  if (canEdit) {
    const editBtnEl = document.getElementById('edit-btn')
    const editFormContainer = document.getElementById('edit-form-container')
--- a/src/lib/api.ts
+++ b/src/lib/api.ts
@@ -9,7 +9,7 @@ export function setNetworkConfig(config: NetworkConfig): void {
  networkConfig = config
 }

-function getPlc(): string {
+export function getPlc(): string {
  return networkConfig?.plc || 'https://plc.directory'
 }

@@ -24,21 +24,67 @@ export function getAgent(service: string): AtpAgent {
  return agents.get(service)!
 }

+// Fallback PLC directories
+const FALLBACK_PLCS = [
+  'https://plc.directory',
+  'https://plc.syu.is',
+]
+
+// Fallback endpoints for handle/profile resolution
+const FALLBACK_ENDPOINTS = [
+  'https://public.api.bsky.app',
+  'https://bsky.syu.is',
+]
+
 export async function resolvePds(did: string): Promise<string> {
-  const res = await fetch(`${getPlc()}/${did}`)
+  // Try current PLC first, then fallbacks
+  const plcs = [getPlc(), ...FALLBACK_PLCS.filter(p => p !== getPlc())]
+
+  for (const plc of plcs) {
+    try {
+      const res = await fetch(`${plc}/${did}`)
+      if (!res.ok) continue
      const doc = await res.json()
      const service = doc.service?.find((s: any) => s.type === 'AtprotoPersonalDataServer')
-  return service?.serviceEndpoint || getBsky()
+      if (service?.serviceEndpoint) {
+        return service.serviceEndpoint
+      }
+    } catch {
+      continue
+    }
+  }
+  return getBsky()
 }

 export async function resolveHandle(handle: string): Promise<string> {
+  // Try current network first
+  try {
    const agent = getAgent(getBsky())
    const res = await agent.resolveHandle({ handle })
    return res.data.did
+  } catch {
+    // Try fallback endpoints
+    for (const endpoint of FALLBACK_ENDPOINTS) {
+      if (endpoint === getBsky()) continue // Skip if same as current
+      try {
+        const agent = getAgent(endpoint)
+        const res = await agent.resolveHandle({ handle })
+        return res.data.did
+      } catch {
+        continue
+      }
+    }
+    throw new Error(`Could not resolve handle: ${handle}`)
+  }
 }

 export async function getProfile(actor: string): Promise<Profile> {
-  const agent = getAgent(getBsky())
+  // Try current network first
+  const endpoints = [getBsky(), ...FALLBACK_ENDPOINTS.filter(e => e !== getBsky())]
+
+  for (const endpoint of endpoints) {
+    try {
+      const agent = getAgent(endpoint)
      const res = await agent.getProfile({ actor })
      return {
        did: res.data.did,
@@ -48,6 +94,11 @@ export async function getProfile(actor: string): Promise<Profile> {
        avatar: res.data.avatar,
        banner: res.data.banner,
      }
+    } catch {
+      continue
+    }
+  }
+  throw new Error(`Could not get profile: ${actor}`)
 }

 export async function listRecords(
@@ -190,6 +241,20 @@ const SERVICE_MAP: Record<string, { domain: string; icon?: string }> = {
  'pub.leaflet': { domain: 'leaflet.pub' },
 }

+// Search Bluesky posts mentioning a URL
+export async function searchPostsForUrl(url: string): Promise<any[]> {
+  try {
+    const res = await fetch(
+      `https://public.api.bsky.app/xrpc/app.bsky.feed.searchPosts?q=${encodeURIComponent(url)}&limit=20`
+    )
+    if (!res.ok) return []
+    const data = await res.json()
+    return data.posts || []
+  } catch {
+    return []
+  }
+}
+
 export function getServiceInfo(collection: string): { name: string; domain: string; favicon: string } | null {
  // Try to find matching service prefix
  for (const [prefix, info] of Object.entries(SERVICE_MAP)) {
--- a/src/lib/utils.ts
+++ b/src/lib/utils.ts
@@ -0,0 +1,7 @@
+export function escapeHtml(str: string): string {
+  return str
+    .replace(/&/g, '&amp;')
+    .replace(/</g, '&lt;')
+    .replace(/>/g, '&gt;')
+    .replace(/"/g, '&quot;')
+}
--- a/src/main.ts
+++ b/src/main.ts
@@ -6,11 +6,15 @@ import { mountPostList, mountPostDetail } from './components/posts.js'
 import { mountHeader } from './components/browser.js'
 import { mountAtBrowser } from './components/atbrowser.js'
 import { mountPostForm } from './components/postform.js'
+import { loadDiscussionPosts } from './components/discussion.js'
 import { parseRoute, type Route } from './lib/router.js'
+import { escapeHtml } from './lib/utils.js'
 import type { AppConfig, Networks } from './types.js'

 let authSession: AuthSession | null = null
 let config: AppConfig
+let networks: Networks = {}
+let browserNetwork: string = ''  // Network for AT Browser

 // Browser state
 let browserMode = false
@@ -42,6 +46,39 @@ function renderFooter(handle: string): string {
  `
 }

+function renderPdsSelector(): string {
+  const networkKeys = Object.keys(networks)
+  const options = networkKeys.map(key => {
+    const isSelected = key === browserNetwork
+    return `<div class="pds-option ${isSelected ? 'selected' : ''}" data-network="${escapeHtml(key)}">
+      <span class="pds-name">${escapeHtml(key)}</span>
+      <span class="pds-check">✓</span>
+    </div>`
+  }).join('')
+
+  return `
+    <div class="pds-selector" id="pds-selector">
+      <button type="button" class="tab" id="pds-tab">PDS</button>
+      <div class="pds-dropdown" id="pds-dropdown">
+        ${options}
+      </div>
+    </div>
+  `
+}
+
+function updatePdsSelector(): void {
+  const dropdown = document.getElementById('pds-dropdown')
+  if (!dropdown) return
+
+  const options = dropdown.querySelectorAll('.pds-option')
+  options.forEach(opt => {
+    const el = opt as HTMLElement
+    const network = el.dataset.network
+    const isSelected = network === browserNetwork
+    el.classList.toggle('selected', isSelected)
+  })
+}
+
 function renderTabs(activeTab: 'blog' | 'browser' | 'new', isLoggedIn: boolean): string {
  let tabs = `
    <a href="/" class="tab ${activeTab === 'blog' ? 'active' : ''}" id="blog-tab">Blog</a>
@@ -52,6 +89,8 @@ function renderTabs(activeTab: 'blog' | 'browser' | 'new', isLoggedIn: boolean):
    tabs += `<a href="/post" class="tab ${activeTab === 'new' ? 'active' : ''}">Post</a>`
  }

+  tabs += renderPdsSelector()
+
  return `<div class="mode-tabs">${tabs}</div>`
 }

@@ -123,6 +162,12 @@ async function loadBrowserContent(): Promise<void> {
  const contentEl = document.getElementById('content')
  if (!contentEl) return

+  // Set network config for browser
+  const browserNetworkConfig = networks[browserNetwork]
+  if (browserNetworkConfig) {
+    setNetworkConfig(browserNetworkConfig)
+  }
+
  const loginDid = authSession?.did || null
  await mountAtBrowser(
    contentEl,
@@ -217,14 +262,6 @@ async function addEditButtonToStaticPost(collection: string, rkey: string, sessi
  })
 }

-function escapeHtml(str: string): string {
-  return str
-    .replace(/&/g, '&amp;')
-    .replace(/</g, '&lt;')
-    .replace(/>/g, '&gt;')
-    .replace(/"/g, '&quot;')
-}
-
 // Refresh post list from API (for static pages)
 async function refreshPostListFromAPI(): Promise<void> {
  const contentEl = document.getElementById('content')
@@ -327,6 +364,57 @@ function setupEventHandlers(): void {
      return
    }

+    // PDS tab button - toggle dropdown
+    if (target.id === 'pds-tab' || target.closest('#pds-tab')) {
+      e.preventDefault()
+      e.stopPropagation()
+      const dropdown = document.getElementById('pds-dropdown')
+      if (dropdown) {
+        dropdown.classList.toggle('show')
+      }
+      return
+    }
+
+    // PDS option selection
+    const pdsOption = target.closest('.pds-option') as HTMLElement
+    if (pdsOption) {
+      e.preventDefault()
+      const selectedNetwork = pdsOption.dataset.network
+      if (selectedNetwork && selectedNetwork !== browserNetwork) {
+        browserNetwork = selectedNetwork
+        localStorage.setItem('browserNetwork', selectedNetwork)
+
+        // Update network config for API and Auth
+        const networkConfig = networks[selectedNetwork]
+        if (networkConfig) {
+          setNetworkConfig(networkConfig)
+          setAuthNetworkConfig(networkConfig)
+        }
+
+        // Update UI
+        updatePdsSelector()
+
+        // Reload browser if in browser mode
+        if (browserMode) {
+          loadBrowserContent()
+        }
+      }
+      // Close dropdown
+      const dropdown = document.getElementById('pds-dropdown')
+      if (dropdown) {
+        dropdown.classList.remove('show')
+      }
+      return
+    }
+
+    // Close PDS dropdown when clicking outside
+    if (!target.closest('#pds-selector')) {
+      const dropdown = document.getElementById('pds-dropdown')
+      if (dropdown) {
+        dropdown.classList.remove('show')
+      }
+    }
+
    // JSON button click (on post detail page)
    const jsonBtn = target.closest('.json-btn') as HTMLAnchorElement
    if (jsonBtn) {
@@ -432,12 +520,17 @@ async function render(): Promise<void> {
      }
    }, true)

-    // Update tabs to show Post tab if logged in
-    if (isLoggedIn) {
+    // Update tabs
    const tabsEl = document.querySelector('.mode-tabs')
-      if (tabsEl && !tabsEl.querySelector('a[href="/post"]')) {
+    if (tabsEl) {
+      // Add Post tab if logged in
+      if (isLoggedIn && !tabsEl.querySelector('a[href="/post"]')) {
        tabsEl.insertAdjacentHTML('beforeend', '<a href="/post" class="tab">Post</a>')
      }
+      // Add PDS selector if not present
+      if (!tabsEl.querySelector('#pds-selector')) {
+        tabsEl.insertAdjacentHTML('beforeend', renderPdsSelector())
+      }
    }

    // For post pages, add edit button if logged in and can edit
@@ -445,6 +538,17 @@ async function render(): Promise<void> {
      addEditButtonToStaticPost(config.collection, route.rkey, authSession!)
    }

+    // For post pages, load discussion posts
+    if (route.type === 'post') {
+      const discussionContainer = document.getElementById('discussion-posts')
+      if (discussionContainer) {
+        const postUrl = discussionContainer.dataset.postUrl
+        if (postUrl) {
+          loadDiscussionPosts(discussionContainer.parentElement!, postUrl)
+        }
+      }
+    }
+
    // For blog top page, check for new posts from API and merge
    if (route.type === 'blog') {
      refreshPostListFromAPI()
@@ -505,7 +609,7 @@ async function render(): Promise<void> {
        const post = await getRecord(profile.did, config.collection, route.rkey!)
        if (post) {
          const canEdit = isLoggedIn && authSession?.did === profile.did
-          mountPostDetail(contentEl, post, config.handle, config.collection, canEdit)
+          mountPostDetail(contentEl, post, config.handle, config.collection, canEdit, config.siteUrl, config.network)
        } else {
          contentEl.innerHTML = '<p>Post not found</p>'
        }
@@ -538,8 +642,9 @@ async function render(): Promise<void> {
 }

 async function init(): Promise<void> {
-  const [configData, networks] = await Promise.all([loadConfig(), loadNetworks()])
+  const [configData, networksData] = await Promise.all([loadConfig(), loadNetworks()])
  config = configData
+  networks = networksData

  // Set page title
  document.title = config.title || 'ailog'
@@ -549,11 +654,14 @@ async function init(): Promise<void> {
    document.documentElement.style.setProperty('--btn-color', config.color)
  }

-  // Set network config
-  const networkConfig = networks[config.network]
-  if (networkConfig) {
-    setNetworkConfig(networkConfig)
-    setAuthNetworkConfig(networkConfig)
+  // Initialize browser network from localStorage or default to config.network
+  browserNetwork = localStorage.getItem('browserNetwork') || config.network
+
+  // Set network config based on selected browser network
+  const selectedNetworkConfig = networks[browserNetwork]
+  if (selectedNetworkConfig) {
+    setNetworkConfig(selectedNetworkConfig)
+    setAuthNetworkConfig(selectedNetworkConfig)
  }

  // Handle OAuth callback
--- a/src/styles/main.css
+++ b/src/styles/main.css
@@ -436,6 +436,110 @@ body {
  cursor: not-allowed;
 }

+/* Discussion Section */
+.discussion-section {
+  margin-top: 48px;
+  padding-top: 24px;
+  border-top: 1px solid #eee;
+}
+
+.discussion-section h3 {
+  font-size: 18px;
+  margin-bottom: 16px;
+}
+
+.discuss-link {
+  display: inline-flex;
+  align-items: center;
+  gap: 8px;
+  padding: 10px 16px;
+  background: var(--btn-color);
+  color: #fff;
+  border-radius: 20px;
+  text-decoration: none;
+  font-size: 14px;
+  font-weight: 500;
+}
+
+.discuss-link:hover {
+  background: var(--btn-color);
+  filter: brightness(0.85);
+}
+
+.discuss-link svg {
+  width: 18px;
+  height: 18px;
+}
+
+.discussion-posts {
+  margin-top: 20px;
+}
+
+.loading-small {
+  color: #888;
+  font-size: 14px;
+}
+
+.no-discussion {
+  color: #888;
+  font-size: 14px;
+}
+
+.discussion-post {
+  display: block;
+  padding: 16px;
+  margin-bottom: 12px;
+  background: #f9f9f9;
+  border-radius: 8px;
+  text-decoration: none;
+  color: inherit;
+}
+
+.discussion-post:hover {
+  background: #f0f0f0;
+}
+
+.discussion-author {
+  display: flex;
+  align-items: center;
+  gap: 10px;
+  margin-bottom: 8px;
+}
+
+.discussion-avatar {
+  width: 32px;
+  height: 32px;
+  border-radius: 50%;
+}
+
+.discussion-author-info {
+  flex: 1;
+  display: flex;
+  flex-direction: column;
+}
+
+.discussion-name {
+  font-weight: 600;
+  font-size: 14px;
+}
+
+.discussion-handle {
+  font-size: 12px;
+  color: #888;
+}
+
+.discussion-date {
+  font-size: 12px;
+  color: #888;
+}
+
+.discussion-text {
+  font-size: 14px;
+  line-height: 1.5;
+  white-space: pre-wrap;
+  word-break: break-word;
+}
+
 .post-content {
  font-size: 16px;
  line-height: 1.8;
@@ -729,7 +833,111 @@ body {
  color: #fff;
 }

+/* PDS Selector */
+.pds-selector {
+  position: relative;
+  margin-left: auto;
+}
+
+.pds-dropdown {
+  display: none;
+  position: absolute;
+  top: 100%;
+  right: 0;
+  margin-top: 4px;
+  background: #fff;
+  border: 1px solid #ddd;
+  border-radius: 8px;
+  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
+  min-width: 180px;
+  z-index: 100;
+  overflow: hidden;
+}
+
+.pds-dropdown.show {
+  display: block;
+}
+
+.pds-option {
+  display: flex;
+  justify-content: space-between;
+  align-items: center;
+  padding: 12px 16px;
+  cursor: pointer;
+  font-size: 14px;
+  transition: background 0.15s;
+}
+
+.pds-option:hover {
+  background: #f5f5f5;
+}
+
+.pds-option.selected {
+  background: linear-gradient(135deg, #f0f7ff 0%, #e8f4ff 100%);
+}
+
+.pds-name {
+  color: #333;
+  font-weight: 500;
+}
+
+.pds-check {
+  width: 18px;
+  height: 18px;
+  border-radius: 50%;
+  border: 2px solid #ccc;
+  display: flex;
+  align-items: center;
+  justify-content: center;
+  font-size: 10px;
+  transition: all 0.2s;
+}
+
+.pds-option.selected .pds-check {
+  background: var(--btn-color);
+  border-color: var(--btn-color);
+  color: #fff;
+}
+
+.pds-option:not(.selected) .pds-check {
+  color: transparent;
+}
+
 /* AT Browser */
+.server-info {
+  padding: 16px 0;
+  border-bottom: 1px solid #eee;
+  margin-bottom: 8px;
+}
+
+.server-info h3 {
+  font-size: 18px;
+  margin-bottom: 12px;
+}
+
+.server-details {
+  font-size: 13px;
+}
+
+.server-row {
+  display: flex;
+  gap: 12px;
+  padding: 6px 0;
+}
+
+.server-row dt {
+  font-weight: 600;
+  min-width: 40px;
+  color: #666;
+}
+
+.server-row dd {
+  font-family: 'SF Mono', Monaco, monospace;
+  font-size: 12px;
+  word-break: break-all;
+  color: #333;
+}
+
 .services-list,
 .collections,
 .records,
@@ -802,6 +1010,38 @@ body {
  border-bottom: 1px solid #eee;
 }

+.record-item {
+  display: flex;
+  align-items: center;
+  gap: 8px;
+}
+
+.record-item .record-link {
+  flex: 1;
+}
+
+.delete-btn-small {
+  width: 28px;
+  height: 28px;
+  display: flex;
+  align-items: center;
+  justify-content: center;
+  background: transparent;
+  border: 1px solid #ddd;
+  border-radius: 4px;
+  color: #999;
+  cursor: pointer;
+  font-size: 16px;
+  flex-shrink: 0;
+  margin-right: 8px;
+}
+
+.delete-btn-small:hover {
+  background: #fee;
+  border-color: #f88;
+  color: #c00;
+}
+
 .collection-link,
 .record-link {
  display: flex;
--- a/src/types.ts
+++ b/src/types.ts
@@ -26,6 +26,7 @@ export interface AppConfig {
  collection: string
  network: string
  color?: string
+  siteUrl?: string
 }

 export type Networks = Record<string, NetworkConfig>