import { APIClient } from "./ApiClient";

export interface AuthInfo {
  id: string;
}

const TokenStateKey = "auth-state";

export class AuthApi {
  /**
   * Check out whether user is signed in or not
   */
  static get SignedIn(): boolean {
    return localStorage.getItem(TokenStateKey) !== null;
  }

  /**
   * Mark user as authenticated
   */
  static SetAuthenticated() {
    localStorage.setItem(TokenStateKey, "");
  }

  /**
   * Un-mark user as authenticated
   */
  static UnsetAuthenticated() {
    localStorage.removeItem(TokenStateKey);
  }

  /**
   * Authenticate using user and password
   */
  static async AuthWithPassword(user: string, password: string): Promise<void> {
    await APIClient.exec({
      uri: "/auth/password_auth",
      method: "POST",
      jsonData: {
        user,
        password,
      },
    });

    this.SetAuthenticated();
  }

  /**
   * Get auth information
   */
  static async GetAuthInfo(): Promise<AuthInfo> {
    return (
      await APIClient.exec({
        uri: "/auth/info",
        method: "GET",
      })
    ).data;
  }

  /**
   * Sign out
   */
  static async SignOut(): Promise<void> {
    this.UnsetAuthenticated();

    try {
      await APIClient.exec({
        uri: "/auth/sign_out",
        method: "GET",
      });
    } finally {
      window.location.href = "/";
    }
  }
}