Add grouping categories feature

services/database.ts

@@ -213,6 +213,7 @@ export interface Feed {
   url: string;
   title?: string;
   description?: string;
+  category?: string;
   lastUpdated?: string;
   createdAt: string;
   active: boolean;
@@ -325,6 +326,7 @@ export async function getFeedByUrl(url: string): Promise<Feed | null> {
       url: row.url,
       title: row.title,
       description: row.description,
+      category: row.category,
       lastUpdated: row.last_updated,
       createdAt: row.created_at,
       active: Boolean(row.active),
@@ -346,6 +348,7 @@ export async function getFeedById(id: string): Promise<Feed | null> {
       url: row.url,
       title: row.title,
       description: row.description,
+      category: row.category,
       lastUpdated: row.last_updated,
       createdAt: row.created_at,
       active: Boolean(row.active),
@@ -368,6 +371,7 @@ export async function getAllFeeds(): Promise<Feed[]> {
       url: row.url,
       title: row.title,
       description: row.description,
+      category: row.category,
       lastUpdated: row.last_updated,
       createdAt: row.created_at,
       active: Boolean(row.active),
@@ -549,6 +553,7 @@ export async function getAllFeedsIncludingInactive(): Promise<Feed[]> {
       url: row.url,
       title: row.title,
       description: row.description,
+      category: row.category,
       lastUpdated: row.last_updated,
       createdAt: row.created_at,
       active: Boolean(row.active),
@@ -559,6 +564,68 @@ export async function getAllFeedsIncludingInactive(): Promise<Feed[]> {
   }
 }
 
+export async function getFeedsByCategory(category?: string): Promise<Feed[]> {
+  try {
+    let stmt;
+    let rows;
+    
+    if (category) {
+      stmt = db.prepare("SELECT * FROM feeds WHERE category = ? AND active = 1 ORDER BY created_at DESC");
+      rows = stmt.all(category) as any[];
+    } else {
+      // If no category specified, return all active feeds
+      stmt = db.prepare("SELECT * FROM feeds WHERE active = 1 ORDER BY created_at DESC");
+      rows = stmt.all() as any[];
+    }
+
+    return rows.map((row) => ({
+      id: row.id,
+      url: row.url,
+      title: row.title,
+      description: row.description,
+      category: row.category,
+      lastUpdated: row.last_updated,
+      createdAt: row.created_at,
+      active: Boolean(row.active),
+    }));
+  } catch (error) {
+    console.error("Error getting feeds by category:", error);
+    throw error;
+  }
+}
+
+export async function getAllCategories(): Promise<string[]> {
+  try {
+    const stmt = db.prepare("SELECT DISTINCT category FROM feeds WHERE category IS NOT NULL AND active = 1 ORDER BY category");
+    const rows = stmt.all() as any[];
+    
+    return rows.map((row) => row.category).filter(Boolean);
+  } catch (error) {
+    console.error("Error getting all categories:", error);
+    throw error;
+  }
+}
+
+export async function getFeedsGroupedByCategory(): Promise<{ [category: string]: Feed[] }> {
+  try {
+    const feeds = await getAllFeeds();
+    const grouped: { [category: string]: Feed[] } = {};
+    
+    for (const feed of feeds) {
+      const category = feed.category || 'Uncategorized';
+      if (!grouped[category]) {
+        grouped[category] = [];
+      }
+      grouped[category].push(feed);
+    }
+    
+    return grouped;
+  } catch (error) {
+    console.error("Error getting feeds grouped by category:", error);
+    throw error;
+  }
+}
+
 export async function deleteFeed(feedId: string): Promise<boolean> {
   try {
     // Start transaction