// Expert API helpers extracted from ConfigPage.tsx
// Used by both ConfigPage and ExpertSelector
import type { ExpertItem } from '../types'

export async function getSelectedExpert(sessionId: string): Promise<{ expert_name: string | null; expert: ExpertItem | null }> {
  const resp = await fetch(`/api/experts/selected?session_id=${encodeURIComponent(sessionId)}`)
  if (!resp.ok) return { expert_name: null, expert: null }
  return resp.json()
}

export async function selectExpert(sessionId: string, expertName: string | null): Promise<{ success: boolean; error?: string }> {
  const resp = await fetch('/api/experts/select', {
    method: 'POST',
    headers: { 'Content-Type': 'application/json' },
    body: JSON.stringify({ session_id: sessionId, expert_name: expertName }),
  })
  const data = await resp.json().catch(() => ({}))
  if (!resp.ok || !data.success) return { success: false, error: data.error || '切换专家失败' }
  return { success: true }
}