using System.Collections;
using System.Collections.Generic;
using TMPro;
using UnityEngine;
using UnityEngine.SceneManagement;
using UnityEngine.UI;

public class NewLoginManager : MonoBehaviour
{
    public GameObject loadingPanel;
    public GameObject newUsernamePanel;
    public GameObject usernameWarning;
    public TMP_InputField usernameInput;
    public Button btn_login;
    public TMP_Text statusTxt;
    public static bool loginSaved {get{return PlayerPrefs.HasKey("username") && PlayerPrefs.HasKey("password");}}
    public static string savedUsername{get{return (loginSaved)? PlayerPrefs.GetString("username") : "";}}
    public static string savedPassword{get{return (loginSaved)? PlayerPrefs.GetString("password") : "";}}

    void Start()
    {
        statusTxt.text = "Checking credentials";
        btn_login.onClick.AddListener(OnRegisterButton);
        loadingPanel.SetActive(true);
        if(!loginSaved){
            Register();
        }else{
            TutorialManager.justRegistered=false;
            Login();
        }
    }

    public void Register(){
        if(usernameInput.text.Length >=2){
            StartCoroutine(register());
            loadingPanel.SetActive(true);
        }else{
            newUsernamePanel.SetActive(true);
            loadingPanel.SetActive(false);
        }
    }

    IEnumerator register(){
        statusTxt.text = "Registering you in...";
        WWWForm form = new WWWForm();
        form.AddField("key", "#2CuV1Bit^S!sW1ZcgRv8BhrO");
        form.AddField("username", usernameInput.text);

        WWW www = new WWW(DBmanager.phpRoot + "register_instant.php",form);
        yield return www;

        

        OnRegister(www.text);
    }

    void OnRegister(string id){
        try{
            TutorialManager.justRegistered=true;
            int new_id = int.Parse(id);
            PlayerPrefs.SetString("username", usernameInput.text+"#"+ id);
            PlayerPrefs.SetString("password", id);
            PlayerPrefs.Save();

            Login();
        }catch{
            statusTxt.text = "Failed";
            MessageDialog.instance.ShowMessage("Failed!", "Failed to register you into the game.\nReason: " + id);
            newUsernamePanel.SetActive(true);
            usernameInput.text = "";
        }

    }

    void Login(){
        StartCoroutine(login());
    }

    IEnumerator login(){
        statusTxt.text = "Logging you in...";

        WWWForm form = new WWWForm();
        form.AddField("name", savedUsername);
        form.AddField("password", savedPassword);
        WWW www = new WWW(DBmanager.phpRoot + "login.php",form);

        yield return www;
        Debug.Log(www.text);

        if(DBmanager.Login(www.text)==0){
            SceneManager.LoadScene("GameScene");
        }else{
            statusTxt.text = "Failed!";

            MessageDialog.instance.ShowQuestion("Error",
            "Failed to log you in using saved credentials.\nDo you want to open game with guest account?",OnYes:Register, OnNo:OnLoginFailed);
        }
    }

    void OnLoginFailed(){
        MessageDialog.instance.ShowQuestion("Sorry", "Looks like there's been an issue logging you in\nPress yes to close the app and Try again later.", OnYes:()=>{Application.Quit();},onlyYes:true,OnNo:()=>{});
    }

    public void OnUsernameInputChanged(string newValue){
        btn_login.interactable= (usernameInput.text.Length > 2);
        usernameWarning.SetActive(usernameInput.text.Length< 2);
    }

    void OnRegisterButton(){
        newUsernamePanel.SetActive(false);
        Register();
    }
}