import { api } from './http-client'

interface ChatMessage {
  role: 'user' | 'assistant' | 'system'
  content: string
}

interface ChatResponse {
  content: string
  conversationId?: string
  usage?: { model?: string; inputTokens?: number; outputTokens?: number }
}

export async function sendMessage(
  messages: ChatMessage[],
  conversationId?: string,
  signal?: AbortSignal,
): Promise<ChatResponse> {
  const body: Record<string, unknown> = { messages }
  if (conversationId) body.conversationId = conversationId
  return api.post<ChatResponse>('/admin-api/ai/chat', body, signal ? { signal } : undefined)
}