Close #2

frontend/src/App.tsx

@@ -1,11 +1,14 @@
 import { Routes, Route, Link, useLocation } from 'react-router-dom'
 import EpisodeList from './components/EpisodeList'
 import FeedManager from './components/FeedManager'
+import FeedList from './components/FeedList'
+import FeedDetail from './components/FeedDetail'
 import EpisodeDetail from './components/EpisodeDetail'
 
 function App() {
   const location = useLocation()
   const isEpisodeDetail = location.pathname.startsWith('/episode/')
+  const isFeedDetail = location.pathname.startsWith('/feeds/') && location.pathname.split('/').length === 3
 
   if (isEpisodeDetail) {
     return (
@@ -15,6 +18,14 @@ function App() {
     )
   }
 
+  if (isFeedDetail) {
+    return (
+      <Routes>
+        <Route path="/feeds/:feedId" element={<FeedDetail />} />
+      </Routes>
+    )
+  }
+
   return (
     <div className="container">
       <div className="header">
@@ -32,6 +43,12 @@ function App() {
         <Link
           to="/feeds"
           className={`tab ${location.pathname === '/feeds' ? 'active' : ''}`}
+        >
+          フィード一覧
+        </Link>
+        <Link
+          to="/feed-requests"
+          className={`tab ${location.pathname === '/feed-requests' ? 'active' : ''}`}
         >
           フィードリクエスト
         </Link>
@@ -40,7 +57,8 @@ function App() {
       <div className="content">
         <Routes>
           <Route path="/" element={<EpisodeList />} />
-          <Route path="/feeds" element={<FeedManager />} />
+          <Route path="/feeds" element={<FeedList />} />
+          <Route path="/feed-requests" element={<FeedManager />} />
         </Routes>
       </div>
     </div>

frontend/src/components/EpisodeDetail.tsx

@@ -1,41 +1,84 @@
 import { useState, useEffect } from 'react'
 import { useParams, Link } from 'react-router-dom'
 
-interface Episode {
+
+interface EpisodeWithFeedInfo {
   id: string
   title: string
-  description: string
-  pubDate: string
-  audioUrl: string
-  audioLength: string
-  guid: string
-  link: string
+  description?: string
+  audioPath: string
+  duration?: number
+  fileSize?: number
+  createdAt: string
+  articleId: string
+  articleTitle: string
+  articleLink: string
+  articlePubDate: string
+  feedId: string
+  feedTitle?: string
+  feedUrl: string
 }
 
 function EpisodeDetail() {
   const { episodeId } = useParams<{ episodeId: string }>()
-  const [episode, setEpisode] = useState<Episode | null>(null)
+  const [episode, setEpisode] = useState<EpisodeWithFeedInfo | null>(null)
   const [loading, setLoading] = useState(true)
   const [error, setError] = useState<string | null>(null)
+  const [useDatabase, setUseDatabase] = useState(true)
 
   useEffect(() => {
     fetchEpisode()
-  }, [episodeId])
+  }, [episodeId, useDatabase])
 
   const fetchEpisode = async () => {
     if (!episodeId) return
 
     try {
       setLoading(true)
-      const response = await fetch(`/api/episode/${episodeId}`)
-      if (!response.ok) {
-        const errorData = await response.json()
-        throw new Error(errorData.error || 'エピソードの取得に失敗しました')
+      
+      if (useDatabase) {
+        // Try to fetch from database with source info first
+        const response = await fetch(`/api/episode-with-source/${episodeId}`)
+        if (!response.ok) {
+          throw new Error('データベースからの取得に失敗しました')
+        }
+        const data = await response.json()
+        setEpisode(data.episode)
+      } else {
+        // Fallback to XML parsing (existing functionality)
+        const response = await fetch(`/api/episode/${episodeId}`)
+        if (!response.ok) {
+          const errorData = await response.json()
+          throw new Error(errorData.error || 'エピソードの取得に失敗しました')
+        }
+        const data = await response.json()
+        const xmlEpisode = data.episode
+        
+        // Convert XML episode to EpisodeWithFeedInfo format
+        const convertedEpisode: EpisodeWithFeedInfo = {
+          id: xmlEpisode.id,
+          title: xmlEpisode.title,
+          description: xmlEpisode.description,
+          audioPath: xmlEpisode.audioUrl,
+          createdAt: xmlEpisode.pubDate,
+          articleId: xmlEpisode.guid,
+          articleTitle: xmlEpisode.title,
+          articleLink: xmlEpisode.link,
+          articlePubDate: xmlEpisode.pubDate,
+          feedId: '',
+          feedTitle: 'RSS Feed',
+          feedUrl: ''
+        }
+        setEpisode(convertedEpisode)
       }
-      const data = await response.json()
-      setEpisode(data.episode)
     } catch (err) {
       console.error('Episode fetch error:', err)
+      if (useDatabase) {
+        // Fallback to XML if database fails
+        console.log('Falling back to XML parsing...')
+        setUseDatabase(false)
+        return
+      }
       setError(err instanceof Error ? err.message : 'エラーが発生しました')
     } finally {
       setLoading(false)
@@ -62,13 +105,12 @@ function EpisodeDetail() {
     return new Date(dateString).toLocaleString('ja-JP')
   }
 
-  const formatFileSize = (bytes: string) => {
-    const size = parseInt(bytes)
-    if (isNaN(size)) return ''
+  const formatFileSize = (bytes?: number) => {
+    if (!bytes) return ''
     
     const units = ['B', 'KB', 'MB', 'GB']
     let unitIndex = 0
-    let fileSize = size
+    let fileSize = bytes
 
     while (fileSize >= 1024 && unitIndex < units.length - 1) {
       fileSize /= 1024
@@ -118,7 +160,7 @@ function EpisodeDetail() {
           {episode.title}
         </div>
         <div className="subtitle" style={{ color: '#666', marginBottom: '20px' }}>
-          公開日: {formatDate(episode.pubDate)}
+          作成日: {formatDate(episode.createdAt)}
         </div>
       </div>
 
@@ -127,7 +169,7 @@ function EpisodeDetail() {
           <audio
             controls
             className="audio-player"
-            src={episode.audioUrl}
+            src={episode.audioPath}
             style={{ width: '100%', height: '60px' }}
           >
             お使いのブラウザは音声の再生に対応していません。
@@ -141,9 +183,9 @@ function EpisodeDetail() {
           >
             このエピソードを共有
           </button>
-          {episode.link && (
+          {episode.articleLink && (
             <a 
-              href={episode.link} 
+              href={episode.articleLink} 
               target="_blank" 
               rel="noopener noreferrer"
               className="btn btn-secondary"
@@ -151,6 +193,14 @@ function EpisodeDetail() {
               元記事を見る
             </a>
           )}
+          {episode.feedId && (
+            <Link 
+              to={`/feeds/${episode.feedId}`}
+              className="btn btn-secondary"
+            >
+              このフィードの他のエピソード
+            </Link>
+          )}
         </div>
 
         <div style={{ marginBottom: '30px' }}>
@@ -161,17 +211,45 @@ function EpisodeDetail() {
             borderRadius: '8px',
             fontSize: '14px'
           }}>
-            <div style={{ marginBottom: '10px' }}>
-              <strong>ファイルサイズ:</strong> {formatFileSize(episode.audioLength)}
-            </div>
-            {episode.guid && (
+            {episode.feedTitle && (
               <div style={{ marginBottom: '10px' }}>
-                <strong>エピソードID:</strong> {episode.guid}
+                <strong>ソースフィード:</strong> 
+                <Link to={`/feeds/${episode.feedId}`} style={{ marginLeft: '5px', color: '#007bff' }}>
+                  {episode.feedTitle}
+                </Link>
+              </div>
+            )}
+            {episode.feedUrl && (
+              <div style={{ marginBottom: '10px' }}>
+                <strong>フィードURL:</strong> 
+                <a href={episode.feedUrl} target="_blank" rel="noopener noreferrer" style={{ marginLeft: '5px' }}>
+                  {episode.feedUrl}
+                </a>
+              </div>
+            )}
+            {episode.articleTitle && episode.articleTitle !== episode.title && (
+              <div style={{ marginBottom: '10px' }}>
+                <strong>元記事タイトル:</strong> {episode.articleTitle}
+              </div>
+            )}
+            {episode.articlePubDate && (
+              <div style={{ marginBottom: '10px' }}>
+                <strong>記事公開日:</strong> {formatDate(episode.articlePubDate)}
+              </div>
+            )}
+            {episode.fileSize && (
+              <div style={{ marginBottom: '10px' }}>
+                <strong>ファイルサイズ:</strong> {formatFileSize(episode.fileSize)}
+              </div>
+            )}
+            {episode.duration && (
+              <div style={{ marginBottom: '10px' }}>
+                <strong>再生時間:</strong> {Math.floor(episode.duration / 60)}分{episode.duration % 60}秒
               </div>
             )}
             <div>
               <strong>音声URL:</strong> 
-              <a href={episode.audioUrl} target="_blank" rel="noopener noreferrer" style={{ marginLeft: '5px' }}>
+              <a href={episode.audioPath} target="_blank" rel="noopener noreferrer" style={{ marginLeft: '5px' }}>
                 直接ダウンロード
               </a>
             </div>

frontend/src/components/EpisodeList.tsx

@@ -1,4 +1,5 @@
 import { useState, useEffect } from 'react'
+import { Link } from 'react-router-dom'
 
 interface Episode {
   id: string
@@ -11,29 +12,82 @@ interface Episode {
   link: string
 }
 
+interface EpisodeWithFeedInfo {
+  id: string
+  title: string
+  description?: string
+  audioPath: string
+  duration?: number
+  fileSize?: number
+  createdAt: string
+  articleId: string
+  articleTitle: string
+  articleLink: string
+  articlePubDate: string
+  feedId: string
+  feedTitle?: string
+  feedUrl: string
+}
+
 function EpisodeList() {
-  const [episodes, setEpisodes] = useState<Episode[]>([])
+  const [episodes, setEpisodes] = useState<EpisodeWithFeedInfo[]>([])
   const [loading, setLoading] = useState(true)
   const [error, setError] = useState<string | null>(null)
   const [currentAudio, setCurrentAudio] = useState<string | null>(null)
+  const [useDatabase, setUseDatabase] = useState(true)
 
   useEffect(() => {
     fetchEpisodes()
-  }, [])
+  }, [useDatabase])
 
   const fetchEpisodes = async () => {
     try {
       setLoading(true)
-      const response = await fetch('/api/episodes-from-xml')
-      if (!response.ok) {
-        const errorData = await response.json()
-        throw new Error(errorData.error || 'エピソードの取得に失敗しました')
+      
+      if (useDatabase) {
+        // Try to fetch from database first
+        const response = await fetch('/api/episodes-with-feed-info')
+        if (!response.ok) {
+          throw new Error('データベースからの取得に失敗しました')
+        }
+        const data = await response.json()
+        setEpisodes(data.episodes || [])
+      } else {
+        // Fallback to XML parsing (existing functionality)
+        const response = await fetch('/api/episodes-from-xml')
+        if (!response.ok) {
+          const errorData = await response.json()
+          throw new Error(errorData.error || 'エピソードの取得に失敗しました')
+        }
+        const data = await response.json()
+        console.log('Fetched episodes from XML:', data)
+        
+        // Convert XML episodes to EpisodeWithFeedInfo format
+        const xmlEpisodes = data.episodes || []
+        const convertedEpisodes: EpisodeWithFeedInfo[] = xmlEpisodes.map((episode: Episode) => ({
+          id: episode.id,
+          title: episode.title,
+          description: episode.description,
+          audioPath: episode.audioUrl,
+          createdAt: episode.pubDate,
+          articleId: episode.guid,
+          articleTitle: episode.title,
+          articleLink: episode.link,
+          articlePubDate: episode.pubDate,
+          feedId: '',
+          feedTitle: 'RSS Feed',
+          feedUrl: ''
+        }))
+        setEpisodes(convertedEpisodes)
       }
-      const data = await response.json()
-      console.log('Fetched episodes from XML:', data)
-      setEpisodes(data.episodes || [])
     } catch (err) {
       console.error('Episode fetch error:', err)
+      if (useDatabase) {
+        // Fallback to XML if database fails
+        console.log('Falling back to XML parsing...')
+        setUseDatabase(false)
+        return
+      }
       setError(err instanceof Error ? err.message : 'エラーが発生しました')
     } finally {
       setLoading(false)
@@ -44,7 +98,7 @@ function EpisodeList() {
     return new Date(dateString).toLocaleString('ja-JP')
   }
 
-  const playAudio = (audioUrl: string) => {
+  const playAudio = (audioPath: string) => {
     if (currentAudio) {
       const currentPlayer = document.getElementById(currentAudio) as HTMLAudioElement
       if (currentPlayer) {
@@ -52,10 +106,10 @@ function EpisodeList() {
         currentPlayer.currentTime = 0
       }
     }
-    setCurrentAudio(audioUrl)
+    setCurrentAudio(audioPath)
   }
 
-  const shareEpisode = (episode: Episode) => {
+  const shareEpisode = (episode: EpisodeWithFeedInfo) => {
     const shareUrl = `${window.location.origin}/episode/${episode.id}`
     navigator.clipboard.writeText(shareUrl).then(() => {
       alert('エピソードリンクをクリップボードにコピーしました')
@@ -71,6 +125,21 @@ function EpisodeList() {
     })
   }
 
+  const formatFileSize = (bytes?: number) => {
+    if (!bytes) return ''
+    
+    const units = ['B', 'KB', 'MB', 'GB']
+    let unitIndex = 0
+    let fileSize = bytes
+
+    while (fileSize >= 1024 && unitIndex < units.length - 1) {
+      fileSize /= 1024
+      unitIndex++
+    }
+
+    return `${fileSize.toFixed(1)} ${units[unitIndex]}`
+  }
+
   if (loading) {
     return <div className="loading">読み込み中...</div>
   }
@@ -109,7 +178,7 @@ function EpisodeList() {
           <tr>
             <th style={{ width: '35%' }}>タイトル</th>
             <th style={{ width: '25%' }}>説明</th>
-            <th style={{ width: '15%' }}>公開日</th>
+            <th style={{ width: '15%' }}>作成日</th>
             <th style={{ width: '25%' }}>操作</th>
           </tr>
         </thead>
@@ -118,11 +187,28 @@ function EpisodeList() {
             <tr key={episode.id}>
               <td>
                 <div style={{ marginBottom: '8px' }}>
-                  <strong>{episode.title}</strong>
+                  <strong>
+                    <Link 
+                      to={`/episode/${episode.id}`}
+                      style={{ textDecoration: 'none', color: '#007bff' }}
+                    >
+                      {episode.title}
+                    </Link>
+                  </strong>
                 </div>
-                {episode.link && (
+                {episode.feedTitle && (
+                  <div style={{ fontSize: '12px', color: '#666', marginBottom: '4px' }}>
+                    フィード: <Link to={`/feeds/${episode.feedId}`} style={{ color: '#007bff' }}>{episode.feedTitle}</Link>
+                  </div>
+                )}
+                {episode.articleTitle && episode.articleTitle !== episode.title && (
+                  <div style={{ fontSize: '12px', color: '#666', marginBottom: '4px' }}>
+                    元記事: <strong>{episode.articleTitle}</strong>
+                  </div>
+                )}
+                {episode.articleLink && (
                   <a 
-                    href={episode.link} 
+                    href={episode.articleLink} 
                     target="_blank" 
                     rel="noopener noreferrer"
                     style={{ fontSize: '12px', color: '#666' }}
@@ -141,14 +227,19 @@ function EpisodeList() {
                 }}>
                   {episode.description || 'No description'}
                 </div>
+                {episode.fileSize && (
+                  <div style={{ fontSize: '12px', color: '#666', marginTop: '4px' }}>
+                    {formatFileSize(episode.fileSize)}
+                  </div>
+                )}
               </td>
-              <td>{formatDate(episode.pubDate)}</td>
+              <td>{formatDate(episode.createdAt)}</td>
               <td>
                 <div style={{ display: 'flex', gap: '8px', flexDirection: 'column' }}>
                   <div style={{ display: 'flex', gap: '8px' }}>
                     <button 
                       className="btn btn-primary"
-                      onClick={() => playAudio(episode.audioUrl)}
+                      onClick={() => playAudio(episode.audioPath)}
                     >
                       再生
                     </button>
@@ -159,13 +250,13 @@ function EpisodeList() {
                       共有
                     </button>
                   </div>
-                  {currentAudio === episode.audioUrl && (
+                  {currentAudio === episode.audioPath && (
                     <div>
                       <audio
-                        id={episode.audioUrl}
+                        id={episode.audioPath}
                         controls
                         className="audio-player"
-                        src={episode.audioUrl}
+                        src={episode.audioPath}
                         onEnded={() => setCurrentAudio(null)}
                       />
                     </div>

frontend/src/components/FeedDetail.tsx

@@ -0,0 +1,282 @@
+import { useState, useEffect } from 'react'
+import { useParams, Link } from 'react-router-dom'
+
+interface Feed {
+  id: string
+  url: string
+  title?: string
+  description?: string
+  lastUpdated?: string
+  createdAt: string
+  active: boolean
+}
+
+interface EpisodeWithFeedInfo {
+  id: string
+  title: string
+  description?: string
+  audioPath: string
+  duration?: number
+  fileSize?: number
+  createdAt: string
+  articleId: string
+  articleTitle: string
+  articleLink: string
+  articlePubDate: string
+  feedId: string
+  feedTitle?: string
+  feedUrl: string
+}
+
+function FeedDetail() {
+  const { feedId } = useParams<{ feedId: string }>()
+  const [feed, setFeed] = useState<Feed | null>(null)
+  const [episodes, setEpisodes] = useState<EpisodeWithFeedInfo[]>([])
+  const [loading, setLoading] = useState(true)
+  const [error, setError] = useState<string | null>(null)
+  const [currentAudio, setCurrentAudio] = useState<string | null>(null)
+
+  useEffect(() => {
+    if (feedId) {
+      fetchFeedAndEpisodes()
+    }
+  }, [feedId])
+
+  const fetchFeedAndEpisodes = async () => {
+    try {
+      setLoading(true)
+      
+      // Fetch feed info and episodes in parallel
+      const [feedResponse, episodesResponse] = await Promise.all([
+        fetch(`/api/feeds/${feedId}`),
+        fetch(`/api/feeds/${feedId}/episodes`)
+      ])
+
+      if (!feedResponse.ok) {
+        const errorData = await feedResponse.json()
+        throw new Error(errorData.error || 'フィード情報の取得に失敗しました')
+      }
+
+      if (!episodesResponse.ok) {
+        const errorData = await episodesResponse.json()
+        throw new Error(errorData.error || 'エピソードの取得に失敗しました')
+      }
+
+      const feedData = await feedResponse.json()
+      const episodesData = await episodesResponse.json()
+
+      setFeed(feedData.feed)
+      setEpisodes(episodesData.episodes || [])
+    } catch (err) {
+      console.error('Feed detail fetch error:', err)
+      setError(err instanceof Error ? err.message : 'エラーが発生しました')
+    } finally {
+      setLoading(false)
+    }
+  }
+
+  const formatDate = (dateString: string) => {
+    return new Date(dateString).toLocaleString('ja-JP')
+  }
+
+  const formatFileSize = (bytes?: number) => {
+    if (!bytes) return ''
+    
+    const units = ['B', 'KB', 'MB', 'GB']
+    let unitIndex = 0
+    let fileSize = bytes
+
+    while (fileSize >= 1024 && unitIndex < units.length - 1) {
+      fileSize /= 1024
+      unitIndex++
+    }
+
+    return `${fileSize.toFixed(1)} ${units[unitIndex]}`
+  }
+
+  const playAudio = (audioPath: string) => {
+    if (currentAudio) {
+      const currentPlayer = document.getElementById(currentAudio) as HTMLAudioElement
+      if (currentPlayer) {
+        currentPlayer.pause()
+        currentPlayer.currentTime = 0
+      }
+    }
+    setCurrentAudio(audioPath)
+  }
+
+  const shareEpisode = (episode: EpisodeWithFeedInfo) => {
+    const shareUrl = `${window.location.origin}/episode/${episode.id}`
+    navigator.clipboard.writeText(shareUrl).then(() => {
+      alert('エピソードリンクをクリップボードにコピーしました')
+    }).catch(() => {
+      const textArea = document.createElement('textarea')
+      textArea.value = shareUrl
+      document.body.appendChild(textArea)
+      textArea.select()
+      document.execCommand('copy')
+      document.body.removeChild(textArea)
+      alert('エピソードリンクをクリップボードにコピーしました')
+    })
+  }
+
+  if (loading) {
+    return <div className="loading">読み込み中...</div>
+  }
+
+  if (error) {
+    return (
+      <div className="error">
+        {error}
+        <Link to="/feeds" className="btn btn-secondary" style={{ marginTop: '20px', display: 'block' }}>
+          フィード一覧に戻る
+        </Link>
+      </div>
+    )
+  }
+
+  if (!feed) {
+    return (
+      <div className="error">
+        フィードが見つかりません
+        <Link to="/feeds" className="btn btn-secondary" style={{ marginTop: '20px', display: 'block' }}>
+          フィード一覧に戻る
+        </Link>
+      </div>
+    )
+  }
+
+  return (
+    <div>
+      <div style={{ marginBottom: '20px' }}>
+        <Link to="/feeds" className="btn btn-secondary">
+          ← フィード一覧に戻る
+        </Link>
+      </div>
+
+      <div className="feed-header" style={{ marginBottom: '30px' }}>
+        <h1 style={{ marginBottom: '10px' }}>
+          {feed.title || feed.url}
+        </h1>
+        <div style={{ color: '#666', marginBottom: '10px' }}>
+          <a href={feed.url} target="_blank" rel="noopener noreferrer">
+            {feed.url}
+          </a>
+        </div>
+        {feed.description && (
+          <div style={{ marginBottom: '15px', color: '#333' }}>
+            {feed.description}
+          </div>
+        )}
+        <div style={{ fontSize: '14px', color: '#666' }}>
+          作成日: {formatDate(feed.createdAt)}
+          {feed.lastUpdated && ` | 最終更新: ${formatDate(feed.lastUpdated)}`}
+        </div>
+      </div>
+
+      <div style={{ marginBottom: '20px', display: 'flex', justifyContent: 'space-between', alignItems: 'center' }}>
+        <h2>エピソード一覧 ({episodes.length}件)</h2>
+        <button className="btn btn-secondary" onClick={fetchFeedAndEpisodes}>
+          更新
+        </button>
+      </div>
+
+      {episodes.length === 0 ? (
+        <div className="empty-state">
+          <p>このフィードにはまだエピソードがありません</p>
+          <p>管理者にバッチ処理の実行を依頼してください</p>
+        </div>
+      ) : (
+        <table className="table">
+          <thead>
+            <tr>
+              <th style={{ width: '35%' }}>タイトル</th>
+              <th style={{ width: '25%' }}>説明</th>
+              <th style={{ width: '15%' }}>作成日</th>
+              <th style={{ width: '25%' }}>操作</th>
+            </tr>
+          </thead>
+          <tbody>
+            {episodes.map((episode) => (
+              <tr key={episode.id}>
+                <td>
+                  <div style={{ marginBottom: '8px' }}>
+                    <strong>
+                      <Link 
+                        to={`/episode/${episode.id}`}
+                        style={{ textDecoration: 'none', color: '#007bff' }}
+                      >
+                        {episode.title}
+                      </Link>
+                    </strong>
+                  </div>
+                  <div style={{ fontSize: '12px', color: '#666', marginBottom: '4px' }}>
+                    元記事: <strong>{episode.articleTitle}</strong>
+                  </div>
+                  {episode.articleLink && (
+                    <a 
+                      href={episode.articleLink} 
+                      target="_blank" 
+                      rel="noopener noreferrer"
+                      style={{ fontSize: '12px', color: '#666' }}
+                    >
+                      元記事を見る
+                    </a>
+                  )}
+                </td>
+                <td>
+                  <div style={{ 
+                    fontSize: '14px', 
+                    maxWidth: '200px', 
+                    overflow: 'hidden', 
+                    textOverflow: 'ellipsis',
+                    whiteSpace: 'nowrap'
+                  }}>
+                    {episode.description || 'No description'}
+                  </div>
+                  {episode.fileSize && (
+                    <div style={{ fontSize: '12px', color: '#666', marginTop: '4px' }}>
+                      {formatFileSize(episode.fileSize)}
+                    </div>
+                  )}
+                </td>
+                <td>{formatDate(episode.createdAt)}</td>
+                <td>
+                  <div style={{ display: 'flex', gap: '8px', flexDirection: 'column' }}>
+                    <div style={{ display: 'flex', gap: '8px' }}>
+                      <button 
+                        className="btn btn-primary"
+                        onClick={() => playAudio(episode.audioPath)}
+                      >
+                        再生
+                      </button>
+                      <button 
+                        className="btn btn-secondary"
+                        onClick={() => shareEpisode(episode)}
+                      >
+                        共有
+                      </button>
+                    </div>
+                    {currentAudio === episode.audioPath && (
+                      <div>
+                        <audio
+                          id={episode.audioPath}
+                          controls
+                          className="audio-player"
+                          src={episode.audioPath}
+                          onEnded={() => setCurrentAudio(null)}
+                        />
+                      </div>
+                    )}
+                  </div>
+                </td>
+              </tr>
+            ))}
+          </tbody>
+        </table>
+      )}
+    </div>
+  )
+}
+
+export default FeedDetail

frontend/src/components/FeedList.tsx

@@ -0,0 +1,188 @@
+import { useState, useEffect } from 'react'
+import { Link } from 'react-router-dom'
+
+interface Feed {
+  id: string
+  url: string
+  title?: string
+  description?: string
+  lastUpdated?: string
+  createdAt: string
+  active: boolean
+}
+
+function FeedList() {
+  const [feeds, setFeeds] = useState<Feed[]>([])
+  const [loading, setLoading] = useState(true)
+  const [error, setError] = useState<string | null>(null)
+
+  useEffect(() => {
+    fetchFeeds()
+  }, [])
+
+  const fetchFeeds = async () => {
+    try {
+      setLoading(true)
+      const response = await fetch('/api/feeds')
+      if (!response.ok) {
+        const errorData = await response.json()
+        throw new Error(errorData.error || 'フィードの取得に失敗しました')
+      }
+      const data = await response.json()
+      setFeeds(data.feeds || [])
+    } catch (err) {
+      console.error('Feed fetch error:', err)
+      setError(err instanceof Error ? err.message : 'エラーが発生しました')
+    } finally {
+      setLoading(false)
+    }
+  }
+
+  const formatDate = (dateString: string) => {
+    return new Date(dateString).toLocaleString('ja-JP')
+  }
+
+  if (loading) {
+    return <div className="loading">読み込み中...</div>
+  }
+
+  if (error) {
+    return <div className="error">{error}</div>
+  }
+
+  if (feeds.length === 0) {
+    return (
+      <div className="empty-state">
+        <p>アクティブなフィードがありません</p>
+        <p>フィードリクエストでRSSフィードをリクエストするか、管理者にフィード追加を依頼してください</p>
+        <button 
+          className="btn btn-secondary" 
+          onClick={fetchFeeds}
+          style={{ marginTop: '10px' }}
+        >
+          再読み込み
+        </button>
+      </div>
+    )
+  }
+
+  return (
+    <div>
+      <div style={{ marginBottom: '20px', display: 'flex', justifyContent: 'space-between', alignItems: 'center' }}>
+        <h2>フィード一覧 ({feeds.length}件)</h2>
+        <button className="btn btn-secondary" onClick={fetchFeeds}>
+          更新
+        </button>
+      </div>
+
+      <div className="feed-grid">
+        {feeds.map((feed) => (
+          <div key={feed.id} className="feed-card">
+            <div className="feed-card-header">
+              <h3 className="feed-title">
+                <Link to={`/feeds/${feed.id}`} className="feed-link">
+                  {feed.title || feed.url}
+                </Link>
+              </h3>
+              <div className="feed-url">
+                <a href={feed.url} target="_blank" rel="noopener noreferrer">
+                  {feed.url}
+                </a>
+              </div>
+            </div>
+            
+            {feed.description && (
+              <div className="feed-description">
+                {feed.description}
+              </div>
+            )}
+            
+            <div className="feed-meta">
+              <div>作成日: {formatDate(feed.createdAt)}</div>
+              {feed.lastUpdated && (
+                <div>最終更新: {formatDate(feed.lastUpdated)}</div>
+              )}
+            </div>
+
+            <div className="feed-actions">
+              <Link to={`/feeds/${feed.id}`} className="btn btn-primary">
+                エピソード一覧を見る
+              </Link>
+            </div>
+          </div>
+        ))}
+      </div>
+
+      <style>{`
+        .feed-grid {
+          display: grid;
+          grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
+          gap: 20px;
+        }
+
+        .feed-card {
+          border: 1px solid #e9ecef;
+          border-radius: 8px;
+          padding: 20px;
+          background: white;
+          box-shadow: 0 2px 4px rgba(0,0,0,0.1);
+        }
+
+        .feed-card-header {
+          margin-bottom: 15px;
+        }
+
+        .feed-title {
+          margin: 0 0 8px 0;
+          font-size: 18px;
+        }
+
+        .feed-link {
+          text-decoration: none;
+          color: #007bff;
+        }
+
+        .feed-link:hover {
+          text-decoration: underline;
+        }
+
+        .feed-url {
+          font-size: 12px;
+          color: #666;
+          word-break: break-all;
+        }
+
+        .feed-url a {
+          color: #666;
+          text-decoration: none;
+        }
+
+        .feed-url a:hover {
+          color: #007bff;
+        }
+
+        .feed-description {
+          margin-bottom: 15px;
+          color: #333;
+          line-height: 1.5;
+        }
+
+        .feed-meta {
+          margin-bottom: 15px;
+          font-size: 12px;
+          color: #666;
+        }
+
+        .feed-meta div {
+          margin-bottom: 4px;
+        }
+
+        .feed-actions {
+          text-align: right;
+        }
+      `}</style>
+    </div>
+  )
+}
+
+export default FeedList