import { ServiceBase } from 'wdk-client/Service/ServiceBase';
import * as Decode from 'wdk-client/Utils/Json';
import { makeTraceid } from '../ServiceUtils';

/** This is for POST requests */
export type TryLoginResponse = {
  success: true;
  redirectUrl: string;
} | {
  success: false;
  message: string;
}

/** This is for POST requests */
const tryLoginDecoder: Decode.Decoder<TryLoginResponse> =
  Decode.oneOf(
    Decode.combine(
      Decode.field('success', Decode.constant(true)),
      Decode.field('redirectUrl', Decode.string)
    ),
    Decode.combine(
      Decode.field('success', Decode.constant(false)),
      Decode.field('message', Decode.string)
    )
  )

export default (base: ServiceBase) => {
  function tryLogin(email: string, password: string, redirectUrl: string) {
    return base.sendRequest(tryLoginDecoder, {
      method: 'post',
      path: '/login',
      body: JSON.stringify({ email, password, redirectUrl })
    });
  }

  async function logout() {
    return fetch(
      `${base.serviceUrl}/logout`,
      {
        credentials: 'include',
        headers: {
          traceid: makeTraceid(),
        }
      }
    );
  }

  return { tryLogin, logout };
}