using System.Collections;
using System.Collections.Generic;
using UnityEngine;
using System.Text.RegularExpressions;
using UnityEngine.UI;
using UnityEngine.Networking;

public class Register : MonoBehaviour {
    public GameObject username;
    public GameObject password;
    public GameObject email;
    public Text errorText;

    public Button registerButton;

    private string Username;
    private string Password;
    private string Email;
    private string form;

    private string registerUserUrl = "http://nordh.xyz/narKampen/dbFiles/Register.php?";

    // Start is called before the first frame update
    void Start() {
        registerButton.onClick.AddListener(RegisterAction);
    }

    // Update is called once per frame
    void Update() {
        Username = username.GetComponent<InputField>().text;
        Password = password.GetComponent<InputField>().text;
        Email = email.GetComponent<InputField>().text;
    }

    void RegisterAction() {
        string errorMessage = "";
        if (Username == "") {
            errorMessage = "Username is obligatory";
        }
        if (Password == "") {
            if (errorMessage != "") {
                errorMessage += "\n";
            }
            errorMessage += "Password is obligatory";
        }
        if (Email == "") {
            if (errorMessage != "") {
                errorMessage += "\n";
            }
            errorMessage += "Email is obligatory";
        }

        Color errorColor = errorText.color;
        if (errorMessage != "") {
            errorText.text = errorMessage;
            errorColor.a = 1;
        } else {
            errorColor.a = 0;

            StartCoroutine(RegisterUser());

        }
        errorText.color = errorColor;
    }

    IEnumerator RegisterUser() {
        // register user at server, check for already in use for username and email.
        // TODO - hash+salt password
        string postUrl = registerUserUrl + "name=" + UnityWebRequest.EscapeURL(Username) + "&password=" + UnityWebRequest.EscapeURL(Password) + "&email=" + UnityWebRequest.EscapeURL(Email);

        UnityWebRequest www = UnityWebRequest.Get(postUrl);
        yield return www;

        if (www.error != null) {
            errorText.text = "There was an error registering this user, try again later";
        }
    }
}