Initial open source release

lib/groups.ts

@@ -0,0 +1,95 @@
+import { db } from './db';
+
+export interface GroupRow {
+  id: number;
+  name: string;
+  color: string;
+  emoji: string | null;
+  sort_order: number;
+  created_at: number;
+  member_count?: number;
+  message_count?: number;
+}
+
+export function listGroups(): GroupRow[] {
+  return db()
+    .prepare(
+      `SELECT g.*,
+              (SELECT COUNT(*) FROM group_tags t WHERE t.group_id = g.id) AS member_count
+       FROM groups g
+       ORDER BY g.sort_order ASC, g.id ASC`,
+    )
+    .all() as GroupRow[];
+}
+
+export function createGroup(input: { name: string; color: string; emoji?: string }) {
+  const max = db().prepare('SELECT COALESCE(MAX(sort_order), 0) AS m FROM groups').get() as {
+    m: number;
+  };
+  const stmt = db().prepare(
+    'INSERT INTO groups (name, color, emoji, sort_order, created_at) VALUES (?, ?, ?, ?, ?)',
+  );
+  const info = stmt.run(input.name, input.color, input.emoji ?? null, max.m + 1, Date.now());
+  return Number(info.lastInsertRowid);
+}
+
+export function deleteGroup(id: number) {
+  db().prepare('DELETE FROM groups WHERE id = ?').run(id);
+}
+
+export function tagGroup(chatroomId: string, groupId: number) {
+  db()
+    .prepare('INSERT OR IGNORE INTO group_tags (chatroom_id, group_id) VALUES (?, ?)')
+    .run(chatroomId, groupId);
+}
+
+export function untagGroup(chatroomId: string, groupId: number) {
+  db()
+    .prepare('DELETE FROM group_tags WHERE chatroom_id = ? AND group_id = ?')
+    .run(chatroomId, groupId);
+}
+
+export function tagsForChatroom(chatroomId: string): number[] {
+  const rows = db()
+    .prepare('SELECT group_id FROM group_tags WHERE chatroom_id = ?')
+    .all(chatroomId) as Array<{ group_id: number }>;
+  return rows.map((r) => r.group_id);
+}
+
+export function chatroomsForGroup(groupId: number): string[] {
+  const rows = db()
+    .prepare('SELECT chatroom_id FROM group_tags WHERE group_id = ?')
+    .all(groupId) as Array<{ chatroom_id: string }>;
+  return rows.map((r) => r.chatroom_id);
+}
+
+export function listAllTags(): Array<{ chatroom_id: string; group_id: number }> {
+  return db()
+    .prepare('SELECT chatroom_id, group_id FROM group_tags')
+    .all() as Array<{ chatroom_id: string; group_id: number }>;
+}
+
+export function isFavorite(chatroomId: string): boolean {
+  const r = db()
+    .prepare('SELECT 1 AS x FROM favorites WHERE chatroom_id = ?')
+    .get(chatroomId) as { x: number } | undefined;
+  return !!r;
+}
+
+export function listFavorites(): string[] {
+  return (
+    db().prepare('SELECT chatroom_id FROM favorites ORDER BY starred_at DESC').all() as Array<{
+      chatroom_id: string;
+    }>
+  ).map((r) => r.chatroom_id);
+}
+
+export function setFavorite(chatroomId: string, fav: boolean) {
+  if (fav) {
+    db()
+      .prepare('INSERT OR IGNORE INTO favorites (chatroom_id, starred_at) VALUES (?, ?)')
+      .run(chatroomId, Date.now());
+  } else {
+    db().prepare('DELETE FROM favorites WHERE chatroom_id = ?').run(chatroomId);
+  }
+}