Update admin panel and server configuration

admin-panel/src/App.tsx

@@ -64,10 +64,21 @@ interface Episode {
   feedCategory?: string;
 }
 
+interface Setting {
+  key: string;
+  value: string | null;
+  isCredential: boolean;
+  description: string;
+  defaultValue: string;
+  required: boolean;
+  updatedAt: string;
+}
+
 function App() {
   const [feeds, setFeeds] = useState<Feed[]>([]);
   const [stats, setStats] = useState<Stats | null>(null);
   const [envVars, setEnvVars] = useState<EnvVars>({});
+  const [settings, setSettings] = useState<Setting[]>([]);
   const [feedRequests, setFeedRequests] = useState<FeedRequest[]>([]);
   const [episodes, setEpisodes] = useState<Episode[]>([]);
   const [loading, setLoading] = useState(true);
@@ -80,8 +91,9 @@ function App() {
   const [approvalNotes, setApprovalNotes] = useState<{ [key: string]: string }>(
     {},
   );
+  const [editingSettings, setEditingSettings] = useState<{ [key: string]: string }>({});
   const [activeTab, setActiveTab] = useState<
-    "dashboard" | "feeds" | "episodes" | "env" | "batch" | "requests"
+    "dashboard" | "feeds" | "episodes" | "env" | "settings" | "batch" | "requests"
   >("dashboard");
 
   useEffect(() => {
@@ -91,11 +103,12 @@ function App() {
   const loadData = async () => {
     setLoading(true);
     try {
-      const [feedsRes, statsRes, envRes, requestsRes, episodesRes] =
+      const [feedsRes, statsRes, envRes, settingsRes, requestsRes, episodesRes] =
         await Promise.all([
           fetch("/api/admin/feeds"),
           fetch("/api/admin/stats"),
           fetch("/api/admin/env"),
+          fetch("/api/admin/settings"),
           fetch("/api/admin/feed-requests"),
           fetch("/api/admin/episodes"),
         ]);
@@ -104,17 +117,19 @@ function App() {
         !feedsRes.ok ||
         !statsRes.ok ||
         !envRes.ok ||
+        !settingsRes.ok ||
         !requestsRes.ok ||
         !episodesRes.ok
       ) {
         throw new Error("Failed to load data");
       }
 
-      const [feedsData, statsData, envData, requestsData, episodesData] =
+      const [feedsData, statsData, envData, settingsData, requestsData, episodesData] =
         await Promise.all([
           feedsRes.json(),
           statsRes.json(),
           envRes.json(),
+          settingsRes.json(),
           requestsRes.json(),
           episodesRes.json(),
         ]);
@@ -122,6 +137,7 @@ function App() {
       setFeeds(feedsData);
       setStats(statsData);
       setEnvVars(envData);
+      setSettings(settingsData);
       setFeedRequests(requestsData);
       setEpisodes(episodesData);
       setError(null);
@@ -338,6 +354,43 @@ function App() {
     setApprovalNotes({ ...approvalNotes, [requestId]: notes });
   };
 
+  const updateSetting = async (key: string, value: string) => {
+    try {
+      const res = await fetch(`/api/admin/settings/${key}`, {
+        method: "PUT",
+        headers: { "Content-Type": "application/json" },
+        body: JSON.stringify({ value }),
+      });
+
+      const data = await res.json();
+
+      if (res.ok) {
+        setSuccess(data.message);
+        setEditingSettings({ ...editingSettings, [key]: "" });
+        loadData();
+      } else {
+        setError(data.error || "設定更新に失敗しました");
+      }
+    } catch (err) {
+      setError("設定更新に失敗しました");
+      console.error("Error updating setting:", err);
+    }
+  };
+
+  const startEditingSetting = (key: string, currentValue: string | null) => {
+    setEditingSettings({ ...editingSettings, [key]: currentValue || "" });
+  };
+
+  const cancelEditingSetting = (key: string) => {
+    const newEditing = { ...editingSettings };
+    delete newEditing[key];
+    setEditingSettings(newEditing);
+  };
+
+  const updateEditingValue = (key: string, value: string) => {
+    setEditingSettings({ ...editingSettings, [key]: value });
+  };
+
   const deleteEpisode = async (episodeId: string, episodeTitle: string) => {
     if (
       !confirm(
@@ -424,6 +477,12 @@ function App() {
             >
               フィード承認
             </button>
+            <button
+              className={`btn ${activeTab === "settings" ? "btn-primary" : "btn-secondary"}`}
+              onClick={() => setActiveTab("settings")}
+            >
+              設定管理
+            </button>
             <button
               className={`btn ${activeTab === "env" ? "btn-primary" : "btn-secondary"}`}
               onClick={() => setActiveTab("env")}
@@ -1087,6 +1146,172 @@ function App() {
             </>
           )}
 
+          {activeTab === "settings" && (
+            <>
+              <h3>設定管理</h3>
+              <p style={{ marginBottom: "20px", color: "#7f8c8d" }}>
+                システム設定を管理できます。設定はデータベースに保存され、アプリケーション全体に適用されます。
+              </p>
+
+              <div style={{ marginBottom: "20px" }}>
+                <div className="stats-grid" style={{ gridTemplateColumns: "repeat(4, 1fr)" }}>
+                  <div className="stat-card">
+                    <div className="value">{settings.length}</div>
+                    <div className="label">総設定数</div>
+                  </div>
+                  <div className="stat-card">
+                    <div className="value">
+                      {settings.filter(s => s.value !== null && s.value !== "").length}
+                    </div>
+                    <div className="label">設定済み</div>
+                  </div>
+                  <div className="stat-card">
+                    <div className="value">
+                      {settings.filter(s => s.required).length}
+                    </div>
+                    <div className="label">必須設定</div>
+                  </div>
+                  <div className="stat-card">
+                    <div className="value">
+                      {settings.filter(s => s.isCredential).length}
+                    </div>
+                    <div className="label">認証情報</div>
+                  </div>
+                </div>
+              </div>
+
+              <div className="settings-list">
+                {settings.map((setting) => (
+                  <div key={setting.key} className="setting-item" style={{ 
+                    display: "flex", 
+                    alignItems: "center",
+                    padding: "16px",
+                    border: "1px solid #ddd",
+                    borderRadius: "4px",
+                    marginBottom: "12px",
+                    backgroundColor: setting.required && (!setting.value || setting.value === "") ? "#fff5f5" : "#fff"
+                  }}>
+                    <div style={{ flex: 1 }}>
+                      <div style={{ display: "flex", alignItems: "center", gap: "8px", marginBottom: "4px" }}>
+                        <h4 style={{ margin: 0, fontSize: "16px" }}>{setting.key}</h4>
+                        {setting.required && (
+                          <span style={{
+                            padding: "2px 6px",
+                            background: "#dc3545",
+                            color: "white",
+                            borderRadius: "4px",
+                            fontSize: "10px"
+                          }}>必須</span>
+                        )}
+                        {setting.isCredential && (
+                          <span style={{
+                            padding: "2px 6px",
+                            background: "#ffc107",
+                            color: "black",
+                            borderRadius: "4px",
+                            fontSize: "10px"
+                          }}>認証情報</span>
+                        )}
+                      </div>
+                      <p style={{ margin: "0 0 8px 0", fontSize: "14px", color: "#666" }}>
+                        {setting.description}
+                      </p>
+                      <div style={{ fontSize: "12px", color: "#999" }}>
+                        デフォルト値: {setting.defaultValue || "なし"} | 
+                        最終更新: {new Date(setting.updatedAt).toLocaleString("ja-JP")}
+                      </div>
+                      
+                      {editingSettings[setting.key] !== undefined ? (
+                        <div style={{ marginTop: "8px", display: "flex", gap: "8px", alignItems: "center" }}>
+                          <input
+                            type={setting.isCredential ? "password" : "text"}
+                            value={editingSettings[setting.key]}
+                            onChange={(e) => updateEditingValue(setting.key, e.target.value)}
+                            placeholder={setting.defaultValue || "値を入力..."}
+                            style={{
+                              flex: 1,
+                              padding: "6px 10px",
+                              border: "1px solid #ddd",
+                              borderRadius: "4px",
+                              fontSize: "14px"
+                            }}
+                          />
+                          <button
+                            className="btn btn-success"
+                            onClick={() => updateSetting(setting.key, editingSettings[setting.key])}
+                            style={{ fontSize: "12px", padding: "6px 12px" }}
+                          >
+                            保存
+                          </button>
+                          <button
+                            className="btn btn-secondary"
+                            onClick={() => cancelEditingSetting(setting.key)}
+                            style={{ fontSize: "12px", padding: "6px 12px" }}
+                          >
+                            キャンセル
+                          </button>
+                        </div>
+                      ) : (
+                        <div style={{ marginTop: "8px", display: "flex", alignItems: "center", gap: "12px" }}>
+                          <div style={{
+                            flex: 1,
+                            padding: "6px 10px",
+                            background: "#f8f9fa",
+                            border: "1px solid #e9ecef",
+                            borderRadius: "4px",
+                            fontSize: "14px",
+                            minHeight: "32px",
+                            display: "flex",
+                            alignItems: "center"
+                          }}>
+                            {setting.value === null || setting.value === "" ? (
+                              <span style={{ color: "#dc3545", fontStyle: "italic" }}>未設定</span>
+                            ) : setting.isCredential ? (
+                              <span style={{ color: "#666" }}>••••••••</span>
+                            ) : (
+                              setting.value
+                            )}
+                          </div>
+                          <button
+                            className="btn btn-primary"
+                            onClick={() => startEditingSetting(setting.key, setting.value)}
+                            style={{ fontSize: "12px", padding: "6px 12px" }}
+                          >
+                            編集
+                          </button>
+                        </div>
+                      )}
+                    </div>
+                  </div>
+                ))}
+              </div>
+
+              <div
+                style={{
+                  marginTop: "20px",
+                  padding: "16px",
+                  background: "#f8f9fa",
+                  borderRadius: "4px",
+                }}
+              >
+                <h4>設定について</h4>
+                <ul
+                  style={{
+                    fontSize: "14px",
+                    color: "#6c757d",
+                    marginTop: "8px",
+                    paddingLeft: "20px",
+                  }}
+                >
+                  <li><strong>必須設定:</strong> アプリケーションの動作に必要な設定です</li>
+                  <li><strong>認証情報:</strong> セキュリティ上重要な情報で、表示時にマスクされます</li>
+                  <li>設定の変更は即座にアプリケーションに反映されます</li>
+                  <li>デフォルト値が設定されている項目は、空にするとデフォルト値が使用されます</li>
+                </ul>
+              </div>
+            </>
+          )}
+
           {activeTab === "env" && (
             <>
               <h3>環境変数設定</h3>

admin-server.ts

@@ -14,12 +14,16 @@ import {
   fetchEpisodesWithArticles,
   getAllCategories,
   getAllFeedsIncludingInactive,
+  getAllSettings,
   getFeedByUrl,
   getFeedRequests,
   getFeedsByCategory,
   getFeedsGroupedByCategory,
+  getSetting,
+  getSettingsForAdminUI,
   toggleFeedActive,
   updateFeedRequestStatus,
+  updateSetting,
 } from "./services/database.js";
 
 // Validate configuration on startup
@@ -92,6 +96,74 @@ app.get("/api/admin/env", async (c) => {
   }
 });
 
+// Settings management API endpoints
+app.get("/api/admin/settings", async (c) => {
+  try {
+    const settings = await getSettingsForAdminUI();
+    return c.json(settings);
+  } catch (error) {
+    console.error("Error fetching settings:", error);
+    return c.json({ error: "Failed to fetch settings" }, 500);
+  }
+});
+
+app.get("/api/admin/settings/:key", async (c) => {
+  try {
+    const key = c.req.param("key");
+    const setting = await getSetting(key);
+    
+    if (!setting) {
+      return c.json({ error: "Setting not found" }, 404);
+    }
+
+    // Mask credential values for security
+    if (setting.isCredential && setting.value) {
+      setting.value = "••••••••";
+    }
+
+    return c.json(setting);
+  } catch (error) {
+    console.error("Error fetching setting:", error);
+    return c.json({ error: "Failed to fetch setting" }, 500);
+  }
+});
+
+app.put("/api/admin/settings/:key", async (c) => {
+  try {
+    const key = c.req.param("key");
+    const { value } = await c.req.json<{ value: string }>();
+
+    if (!value && value !== "") {
+      return c.json({ error: "Setting value is required" }, 400);
+    }
+
+    console.log(`🔧 Admin updating setting: ${key}`);
+
+    // Check if setting exists
+    const existingSetting = await getSetting(key);
+    if (!existingSetting) {
+      return c.json({ error: "Setting not found" }, 404);
+    }
+
+    const updated = await updateSetting(key, value);
+
+    if (updated) {
+      return c.json({
+        result: "UPDATED",
+        message: "Setting updated successfully",
+        key,
+        // Don't return the value for credentials
+        value: existingSetting.isCredential ? "••••••••" : value,
+      });
+    } else {
+      return c.json({ error: "Failed to update setting" }, 500);
+    }
+  } catch (error) {
+    console.error("Error updating setting:", error);
+    return c.json({ error: "Failed to update setting" }, 500);
+  }
+});
+
 // Feed management API endpoints
 app.get("/api/admin/feeds", async (c) => {
   try {

schema.sql

@@ -68,6 +68,17 @@ CREATE TABLE IF NOT EXISTS feed_requests (
   admin_notes TEXT
 );
 
+-- Environment variable settings stored in database
+CREATE TABLE IF NOT EXISTS settings (
+  key TEXT PRIMARY KEY,
+  value TEXT,
+  is_credential BOOLEAN DEFAULT 0,
+  description TEXT,
+  default_value TEXT,
+  required BOOLEAN DEFAULT 0,
+  updated_at TEXT NOT NULL
+);
+
 -- Create indexes for better performance
 CREATE INDEX IF NOT EXISTS idx_articles_feed_id ON articles(feed_id);
 CREATE INDEX IF NOT EXISTS idx_articles_pub_date ON articles(pub_date);
@@ -78,3 +89,4 @@ CREATE INDEX IF NOT EXISTS idx_tts_queue_status ON tts_queue(status);
 CREATE INDEX IF NOT EXISTS idx_tts_queue_created_at ON tts_queue(created_at);
 CREATE INDEX IF NOT EXISTS idx_feed_requests_status ON feed_requests(status);
 CREATE INDEX IF NOT EXISTS idx_feed_requests_created_at ON feed_requests(created_at);
+CREATE INDEX IF NOT EXISTS idx_settings_is_credential ON settings(is_credential);

services/database.ts

@@ -126,86 +126,21 @@ function initializeDatabase(): Database {
   db.exec("PRAGMA cache_size = 1000;");
   db.exec("PRAGMA temp_store = memory;");
 
-  // Ensure schema is set up - use the complete schema
-  db.exec(`CREATE TABLE IF NOT EXISTS feeds (
-    id TEXT PRIMARY KEY,
-    url TEXT NOT NULL UNIQUE,
-    title TEXT,
-    description TEXT,
-    category TEXT,
-    last_updated TEXT,
-    created_at TEXT NOT NULL,
-    active BOOLEAN DEFAULT 1
-  );
-
-  CREATE TABLE IF NOT EXISTS articles (
-    id TEXT PRIMARY KEY,
-    feed_id TEXT NOT NULL,
-    title TEXT NOT NULL,
-    link TEXT NOT NULL UNIQUE,
-    description TEXT,
-    content TEXT,
-    pub_date TEXT NOT NULL,
-    discovered_at TEXT NOT NULL,
-    processed BOOLEAN DEFAULT 0,
-    FOREIGN KEY(feed_id) REFERENCES feeds(id)
-  );
-
-  CREATE TABLE IF NOT EXISTS episodes (
-    id TEXT PRIMARY KEY,
-    article_id TEXT NOT NULL,
-    title TEXT NOT NULL,
-    description TEXT,
-    audio_path TEXT NOT NULL,
-    duration INTEGER,
-    file_size INTEGER,
-    category TEXT,
-    created_at TEXT NOT NULL,
-    FOREIGN KEY(article_id) REFERENCES articles(id)
-  );
-
-  CREATE TABLE IF NOT EXISTS processed_feed_items (
-    feed_url TEXT NOT NULL,
-    item_id   TEXT NOT NULL,
-    processed_at TEXT NOT NULL,
-    PRIMARY KEY(feed_url, item_id)
-  );
-
-  CREATE TABLE IF NOT EXISTS tts_queue (
-    id TEXT PRIMARY KEY,
-    item_id TEXT NOT NULL,
-    script_text TEXT NOT NULL,
-    retry_count INTEGER DEFAULT 0,
-    created_at TEXT NOT NULL,
-    last_attempted_at TEXT,
-    status TEXT DEFAULT 'pending' CHECK (status IN ('pending', 'processing', 'failed'))
-  );
-
-  CREATE TABLE IF NOT EXISTS feed_requests (
-    id TEXT PRIMARY KEY,
-    url TEXT NOT NULL,
-    requested_by TEXT,
-    request_message TEXT,
-    status TEXT DEFAULT 'pending' CHECK (status IN ('pending', 'approved', 'rejected')),
-    created_at TEXT NOT NULL,
-    reviewed_at TEXT,
-    reviewed_by TEXT,
-    admin_notes TEXT
-  );
-
-  CREATE INDEX IF NOT EXISTS idx_articles_feed_id ON articles(feed_id);
-  CREATE INDEX IF NOT EXISTS idx_articles_pub_date ON articles(pub_date);
-  CREATE INDEX IF NOT EXISTS idx_articles_processed ON articles(processed);
-  CREATE INDEX IF NOT EXISTS idx_episodes_article_id ON episodes(article_id);
-  CREATE INDEX IF NOT EXISTS idx_feeds_active ON feeds(active);
-  CREATE INDEX IF NOT EXISTS idx_tts_queue_status ON tts_queue(status);
-  CREATE INDEX IF NOT EXISTS idx_tts_queue_created_at ON tts_queue(created_at);
-  CREATE INDEX IF NOT EXISTS idx_feed_requests_status ON feed_requests(status);
-  CREATE INDEX IF NOT EXISTS idx_feed_requests_created_at ON feed_requests(created_at);`);
+  // Load and execute schema from file
+  const schemaPath = path.join(config.paths.projectRoot, "schema.sql");
+  if (fs.existsSync(schemaPath)) {
+    const schema = fs.readFileSync(schemaPath, "utf-8");
+    db.exec(schema);
+  } else {
+    throw new Error(`Schema file not found: ${schemaPath}`);
+  }
 
   // Perform database integrity checks and fixes
   performDatabaseIntegrityFixes(db);
 
+  // Initialize settings table with default values
+  initializeSettings();
+
   // ALTER
   // ALTER TABLE feeds ADD COLUMN category TEXT DEFAULT NULL;
   // Ensure the category column exists in feeds
@@ -1666,6 +1601,267 @@ export async function getEpisodeCategoryMigrationStatus(): Promise<{
   }
 }
 
+// Settings management functions
+export interface Setting {
+  key: string;
+  value: string | null;
+  isCredential: boolean;
+  description: string;
+  defaultValue: string;
+  required: boolean;
+  updatedAt: string;
+}
+
+export async function initializeSettings(): Promise<void> {
+  const defaultSettings: Omit<Setting, "updatedAt">[] = [
+    {
+      key: "OPENAI_API_KEY",
+      value: null,
+      isCredential: true,
+      description: "OpenAI API Key for content generation",
+      defaultValue: "",
+      required: true,
+    },
+    {
+      key: "OPENAI_API_ENDPOINT", 
+      value: null,
+      isCredential: false,
+      description: "OpenAI API Endpoint URL",
+      defaultValue: "https://api.openai.com/v1",
+      required: false,
+    },
+    {
+      key: "OPENAI_MODEL_NAME",
+      value: null,
+      isCredential: false,
+      description: "OpenAI Model Name",
+      defaultValue: "gpt-4o-mini",
+      required: false,
+    },
+    {
+      key: "VOICEVOX_HOST",
+      value: null,
+      isCredential: false,
+      description: "VOICEVOX Server Host URL",
+      defaultValue: "http://localhost:50021",
+      required: false,
+    },
+    {
+      key: "VOICEVOX_STYLE_ID",
+      value: null,
+      isCredential: false,
+      description: "VOICEVOX Voice Style ID",
+      defaultValue: "0",
+      required: false,
+    },
+    {
+      key: "PODCAST_TITLE",
+      value: null,
+      isCredential: false,
+      description: "Podcast Title",
+      defaultValue: "自動生成ポッドキャスト",
+      required: false,
+    },
+    {
+      key: "PODCAST_LINK",
+      value: null,
+      isCredential: false,
+      description: "Podcast Link URL",
+      defaultValue: "https://your-domain.com/podcast",
+      required: false,
+    },
+    {
+      key: "PODCAST_DESCRIPTION",
+      value: null,
+      isCredential: false,
+      description: "Podcast Description",
+      defaultValue: "RSSフィードから自動生成された音声ポッドキャスト",
+      required: false,
+    },
+    {
+      key: "PODCAST_LANGUAGE",
+      value: null,
+      isCredential: false,
+      description: "Podcast Language",
+      defaultValue: "ja",
+      required: false,
+    },
+    {
+      key: "PODCAST_AUTHOR",
+      value: null,
+      isCredential: false,
+      description: "Podcast Author",
+      defaultValue: "管理者",
+      required: false,
+    },
+    {
+      key: "PODCAST_CATEGORIES",
+      value: null,
+      isCredential: false,
+      description: "Podcast Categories",
+      defaultValue: "Technology",
+      required: false,
+    },
+    {
+      key: "PODCAST_TTL",
+      value: null,
+      isCredential: false,
+      description: "Podcast TTL",
+      defaultValue: "60",
+      required: false,
+    },
+    {
+      key: "PODCAST_BASE_URL",
+      value: null,
+      isCredential: false,
+      description: "Podcast Base URL",
+      defaultValue: "https://your-domain.com",
+      required: false,
+    },
+    {
+      key: "ADMIN_PORT",
+      value: null,
+      isCredential: false,
+      description: "Admin Panel Port",
+      defaultValue: "3001",
+      required: false,
+    },
+    {
+      key: "ADMIN_USERNAME",
+      value: null,
+      isCredential: true,
+      description: "Admin Panel Username",
+      defaultValue: "",
+      required: false,
+    },
+    {
+      key: "ADMIN_PASSWORD",
+      value: null,
+      isCredential: true,
+      description: "Admin Panel Password",
+      defaultValue: "",
+      required: false,
+    },
+    {
+      key: "DISABLE_INITIAL_BATCH",
+      value: null,
+      isCredential: false,
+      description: "Disable Initial Batch Process",
+      defaultValue: "false",
+      required: false,
+    },
+    {
+      key: "FEED_URLS_FILE",
+      value: null,
+      isCredential: false,
+      description: "Feed URLs File Path",
+      defaultValue: "feed_urls.txt",
+      required: false,
+    },
+  ];
+
+  const now = new Date().toISOString();
+
+  for (const setting of defaultSettings) {
+    try {
+      const stmt = db.prepare(
+        "INSERT OR IGNORE INTO settings (key, value, is_credential, description, default_value, required, updated_at) VALUES (?, ?, ?, ?, ?, ?, ?)"
+      );
+      stmt.run(
+        setting.key,
+        setting.value,
+        setting.isCredential ? 1 : 0,
+        setting.description,
+        setting.defaultValue,
+        setting.required ? 1 : 0,
+        now
+      );
+    } catch (error) {
+      console.error(`Error initializing setting ${setting.key}:`, error);
+    }
+  }
+}
+
+export async function getAllSettings(): Promise<Setting[]> {
+  try {
+    const stmt = db.prepare("SELECT * FROM settings ORDER BY key");
+    const rows = stmt.all() as any[];
+
+    return rows.map((row) => ({
+      key: row.key,
+      value: row.value,
+      isCredential: Boolean(row.is_credential),
+      description: row.description,
+      defaultValue: row.default_value,
+      required: Boolean(row.required),
+      updatedAt: row.updated_at,
+    }));
+  } catch (error) {
+    console.error("Error getting all settings:", error);
+    throw error;
+  }
+}
+
+export async function getSetting(key: string): Promise<Setting | null> {
+  try {
+    const stmt = db.prepare("SELECT * FROM settings WHERE key = ?");
+    const row = stmt.get(key) as any;
+    if (!row) return null;
+
+    return {
+      key: row.key,
+      value: row.value,
+      isCredential: Boolean(row.is_credential),
+      description: row.description,
+      defaultValue: row.default_value,
+      required: Boolean(row.required),
+      updatedAt: row.updated_at,
+    };
+  } catch (error) {
+    console.error(`Error getting setting ${key}:`, error);
+    throw error;
+  }
+}
+
+export async function updateSetting(key: string, value: string): Promise<boolean> {
+  try {
+    const now = new Date().toISOString();
+    const stmt = db.prepare(
+      "UPDATE settings SET value = ?, updated_at = ? WHERE key = ?"
+    );
+    const result = stmt.run(value, now, key);
+    return result.changes > 0;
+  } catch (error) {
+    console.error(`Error updating setting ${key}:`, error);
+    throw error;
+  }
+}
+
+export async function deleteSetting(key: string): Promise<boolean> {
+  try {
+    const stmt = db.prepare("DELETE FROM settings WHERE key = ?");
+    const result = stmt.run(key);
+    return result.changes > 0;
+  } catch (error) {
+    console.error(`Error deleting setting ${key}:`, error);
+    throw error;
+  }
+}
+
+export async function getSettingsForAdminUI(): Promise<Setting[]> {
+  try {
+    const settings = await getAllSettings();
+    return settings.map((setting) => ({
+      ...setting,
+      // Mask credential values for security
+      value: setting.isCredential && setting.value ? "••••••••" : setting.value,
+    }));
+  } catch (error) {
+    console.error("Error getting settings for admin UI:", error);
+    throw error;
+  }
+}
+
 export function closeDatabase(): void {
   db.close();
 }