"use server";

import { headers } from "next/headers";
import { redirect } from "next/navigation";
import { isAPIError } from "better-auth/api";
import { z } from "zod";
import { auth } from "@/lib/auth";

const loginSchema = z.object({
  username: z.string().trim().min(1, "Username wajib diisi"),
  password: z.string().min(1, "Password wajib diisi"),
});

export type LoginState = {
  error?: string;
  username?: string;
};

export async function login(
  _prevState: LoginState,
  formData: FormData,
): Promise<LoginState> {
  const parsed = loginSchema.safeParse({
    username: formData.get("username"),
    password: formData.get("password"),
  });
  if (!parsed.success) {
    return {
      error: parsed.error.issues[0].message,
      username: String(formData.get("username") ?? ""),
    };
  }

  try {
    await auth.api.signInUsername({
      body: parsed.data,
      headers: await headers(),
    });
  } catch (error) {
    if (isAPIError(error)) {
      return {
        error: "Username atau password salah",
        username: parsed.data.username,
      };
    }
    throw error;
  }

  redirect("/");
}

export async function logout() {
  await auth.api.signOut({ headers: await headers() });
  redirect("/login");
}