import { apiFetch } from './client'
import type { Summary, Trends } from '@llm-router/shared'

export async function getSummary(month?: string): Promise<Summary> {
  const params = new URLSearchParams()
  if (month) params.set('month', month)
  const query = params.toString()
  const res = await apiFetch(`/v1/expense/summary${query ? `?${query}` : ''}`)
  if (!res.ok) throw new Error('Failed to load summary')
  return res.json() as Promise<Summary>
}

export async function getTrends(months = 6, month?: string): Promise<Trends> {
  const params = new URLSearchParams({ months: String(months) })
  if (month) params.set('month', month)
  const res = await apiFetch(`/v1/expense/trends?${params.toString()}`)
  if (!res.ok) throw new Error('Failed to load trends')
  return res.json() as Promise<Trends>
}