using UnityEngine;
using System.Collections;
using UnityEngine.UI;
using UnityEngine.SceneManagement;
using System;
using System.IO;
using UnityEngine.EventSystems;
using System.Runtime.Serialization.Formatters.Binary;
public class loginScript : MonoBehaviour {
    public  InputField inputName;// login tab for username
    public InputField pw; // login tab for password
    public InputField createName; // create account tab username
    public InputField createPw; // create account tab password
    public GameObject wrongUserOrPass;
    public GameObject noUsername;
    public GameObject noPassword;
    public GameObject pressSubmit;
    //hide submit part
    public GameObject textCreateAcc;
    public GameObject textUsername;
    public GameObject textPassword;
    public GameObject inputFieldUsername;
    public GameObject inputFieldPassword;
    public GameObject submitButton;
    public GameObject submitSuccessful;
    public GameObject hasNoAccount;
    public bool submitTypedUsername = false;
    public bool submitTypedPassowrd = false;
    public bool loginTypedUsername = false;
    public bool loginTypedPassword = false;
    public bool hasAccount = false;
    bool usernameIsActive = false;
    bool passwordIsActive = false;
    bool swithed = false;
    public void Start()
    {

//      Screen.SetResolution(1280, 720, false);
        wrongUserOrPass.SetActive(false);
        noUsername.SetActive(false);
        noPassword.SetActive(false);
        pressSubmit.SetActive(false);
        submitSuccessful.SetActive(false);
        EventSystem.current.SetSelectedGameObject(inputName.gameObject, null);
        inputName.OnPointerClick(new PointerEventData(EventSystem.current));

    }
    public void SubmitButton()
    {
        string createUsername = createName.text.ToString();
        string createPassword = createPw.text.ToString();

            if(System.IO.File.Exists(Application.dataPath + "/unity saveFiles/gameloginDATAUser.save") == false)
         {
            System.IO.Directory.CreateDirectory(Application.dataPath + "/unity saveFiles");

            //put info in file
            if (string.IsNullOrEmpty(createPassword)== false)
            {
                submitTypedPassowrd = true;
            }
            else
            {
                submitTypedPassowrd = false;
            }
            if (string.IsNullOrEmpty(createUsername))
            {
                submitTypedUsername = false;
            }
            else
            {
                submitTypedUsername = true;

            }
            if (submitTypedUsername == true && submitTypedPassowrd == true)
            {
                    System.IO.File.WriteAllText(Application.dataPath + "/unity saveFiles/gameloginDATAUser.save", createUsername);
                    System.IO.File.WriteAllText(Application.dataPath + "/unity saveFiles/gameloginDATAPass.save", createPassword);
                    submitSuccessful.SetActive(true);
            }


        }

    }

    public void LoginButton()
    {
        string userName = inputName.text.ToString();
        string password = pw.text.ToString();
        //read info from file
        string usernameReadFromFile = File.ReadAllText(Application.dataPath + "/unity saveFiles/gameloginDATAUser.save");
        string PasswordReadFromFile = File.ReadAllText(Application.dataPath + "/unity saveFiles/gameloginDATAPass.save");
        if(hasAccount == false)
        {
            hasNoAccount.SetActive(true);
        }
        else
        {
            hasNoAccount.SetActive(false);
        }
        if (string.IsNullOrEmpty(userName))
        {
            Debug.Log("ERROR | No content in username tab");
            wrongUserOrPass.SetActive(false);
            noUsername.SetActive(true);
            noPassword.SetActive(false);
            pressSubmit.SetActive(false);
            submitSuccessful.SetActive(false);
            loginTypedUsername = false;
            inputName.text = "";
            pw.text = "";



        }
        else
        {
            loginTypedUsername = true;
        }
        if (string.IsNullOrEmpty(password))
        {
            Debug.Log("ERROR | No content in password tab");
            wrongUserOrPass.SetActive(false);
            noUsername.SetActive(false);
            noPassword.SetActive(true);
            pressSubmit.SetActive(false);
            submitSuccessful.SetActive(false);
            inputName.text = "";
            pw.text = "";
            loginTypedPassword = false;
        }
        else
        {
            loginTypedPassword = true;
        }
        if (string.Equals(userName, usernameReadFromFile) && string.Equals(password, PasswordReadFromFile))
        {
            SceneManager.LoadScene("mainMenu");
            wrongUserOrPass.SetActive(false);
            noUsername.SetActive(false);
            noPassword.SetActive(false);
            pressSubmit.SetActive(false);
            hasNoAccount.SetActive(false);
            Debug.Log("logged in");
        }
        else
        {

            Debug.Log("ERROR | Wrong username or password");
            wrongUserOrPass.SetActive(true);
            noUsername.SetActive(false);
            noPassword.SetActive(false);
            submitSuccessful.SetActive(false);
            hasNoAccount.SetActive(false);
            inputName.text = "";
            pw.text = "";
        }
        if (System.IO.File.Exists("/unity saveFiles/gameloginDATAUser.save") && System.IO.File.Exists("/unity saveFiles/gameloginDATAPass.save"))
        {
}
        else
        {
            pressSubmit.SetActive(true);
            wrongUserOrPass.SetActive(false);
            noUsername.SetActive(false);
            noPassword.SetActive(false);
            submitSuccessful.SetActive(false);
            Debug.Log("ERROR | Username file not found!");
        }
    }
    public void QuitButton()
    {
        Application.Quit();
    }
    public void RemoveFile()
    {
        File.Delete("/unity saveFiles/gameloginDATAUser.save");
        File.Delete("/unity saveFiles/gameloginDATAPass.save");
    }
    public void Update()
    {
        string localUsername = inputName.ToString();

        if (string.IsNullOrEmpty(localUsername))
        {
            usernameIsActive = false;
            swithed = true;
            passwordIsActive = true;
        }
        else
        {
            usernameIsActive = true;
        }

        if (Input.GetKeyDown(KeyCode.Tab) && usernameIsActive == true)
        {


            EventSystem.current.SetSelectedGameObject(pw.gameObject, null);
            pw.OnPointerClick(new PointerEventData(EventSystem.current));
        }
        else if (swithed = true && passwordIsActive == true)
        {
                EventSystem.current.SetSelectedGameObject(inputName.gameObject, null);
                inputName.OnPointerClick(new PointerEventData(EventSystem.current));
        }

        if (Input.GetButtonDown("enter"))
        {
            if (System.IO.File.Exists("/unity saveFiles/gameloginDATAUser.save") && System.IO.File.Exists("/unity saveFiles/gameloginDATAPass.save"))
            {
                LoginButton();
            }
            else
            {
                SubmitButton();

            }

        }
        if (System.IO.File.Exists(Application.dataPath + "/unity saveFiles/gameloginDATAUser.save") && System.IO.File.Exists(Application.dataPath + "/unity saveFiles/gameloginDATAPass.save"))
        {
            textCreateAcc.SetActive(false);
            textUsername.SetActive(false);
            textPassword.SetActive(false);
            inputFieldUsername.SetActive(false);
            inputFieldPassword.SetActive(false);
            submitButton.SetActive(false);
        }
        else
        {
            textCreateAcc.SetActive(true);
            textUsername.SetActive(true);
            textPassword.SetActive(true);
            inputFieldUsername.SetActive(true);
            inputFieldPassword.SetActive(true);
            submitButton.SetActive(true);
        }
    }
}