import { getServerUrl } from "./server-url"

function authBase() {
  return `${getServerUrl()}/api/auth`
}

export interface AuthUser {
  id: string
  name: string
  email: string
  image: string | null
}

export interface AuthSession {
  user: AuthUser
  session: { id: string; token: string }
}

export async function getSession(): Promise<AuthSession | null> {
  const res = await fetch(`${authBase()}/get-session`, {
    credentials: "include",
  })
  if (!res.ok) return null
  const data = (await res.json()) as AuthSession | null
  return data
}

export async function signIn(email: string, password: string): Promise<AuthSession> {
  const res = await fetch(`${authBase()}/sign-in/email`, {
    method: "POST",
    headers: { "Content-Type": "application/json" },
    credentials: "include",
    body: JSON.stringify({ email, password }),
  })
  if (!res.ok) {
    const data = (await res.json()) as { message?: string }
    throw new Error(data.message ?? `Sign in failed: ${res.status}`)
  }
  return (await res.json()) as AuthSession
}

export async function signOut(): Promise<void> {
  await fetch(`${authBase()}/sign-out`, {
    method: "POST",
    credentials: "include",
  })
}