import { apiFetch } from './client'
import type { AuthResponse } from '../types'

export async function login(email: string, password: string): Promise<AuthResponse> {
  const res = await apiFetch('/api/auth/login', {
    method: 'POST',
    body: JSON.stringify({ email, password }),
  })
  if (!res.ok) {
    const err = await res.json()
    throw new Error(err.detail ?? 'Login failed')
  }
  return res.json()
}

export async function signup(
  full_name: string,
  email: string,
  password: string,
  role: string,
  class_code?: string
): Promise<AuthResponse> {
  const res = await apiFetch('/api/auth/signup', {
    method: 'POST',
    body: JSON.stringify({ full_name, email, password, role, class_code }),
  })
  if (!res.ok) {
    const err = await res.json()
    throw new Error(err.detail ?? 'Signup failed')
  }
  return res.json()
}

export async function logout(): Promise<void> {
  await apiFetch('/api/auth/logout', { method: 'POST' })
}

export async function refreshToken(): Promise<{ access_token: string }> {
  const res = await fetch('/api/auth/refresh', {
    method: 'POST',
    credentials: 'include',
  })
  if (!res.ok) throw new Error('Refresh failed')
  return res.json()
}