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path: root/frontend/src/lib/session.svelte.ts
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import type { User } from './types';
import { getMe } from './client';

class SessionStore {
  me = $state<User | null>(null);
  status = $state<'loading' | 'anon' | 'authed'>('loading');

  async refresh(): Promise<User | null> {
    try {
      const { user } = await getMe();
      if (!user || typeof user.id !== 'string' || user.id.length === 0) {
        this.clear();
        return null;
      }
      this.me = user;
      this.status = 'authed';
      return user;
    } catch (e) {
      const status = (e as { status?: number }).status ?? 0;
      if (status === 0) {
        // network/protocol error: keep previous state so UI can show retry instead
        if (this.status === 'loading') this.clear();
        return null;
      }
      this.clear();
      return null;
    }
  }

  clear() {
    this.me = null;
    this.status = 'anon';
  }

  set(u: User | null) {
    if (u && typeof u.id === 'string' && u.id.length > 0) {
      this.me = u;
      this.status = 'authed';
    } else {
      this.clear();
    }
  }
}

export const session: SessionStore = new SessionStore();