using System;
using System.Collections;
using System.Collections.Generic;
using System.IO;
using System.Net.Sockets;
using System.Text;
using TMPro;
using UnityEditor;
using UnityEngine;
using UnityEngine.SceneManagement;
using UnityEngine.UI;

public class StartHandler : MonoBehaviour
{
    private TcpClient client;
    [SerializeField] private GameObject layout0;
    [SerializeField] private GameObject layout1;
    [SerializeField] private GameObject layout2;
    [SerializeField] private TMP_Text roomCodeEnter;
    [SerializeField] private TMP_Text nameEnter;
    [SerializeField] private GameObject buttonJoin;
    [SerializeField] private GameObject buttonSubmitName;
    [SerializeField] private TMP_Text playerName;
    [SerializeField] private GameObject copiedMessage;
    [SerializeField] private TMP_Text backgroundNameText;
    [SerializeField] private GameObject layoutSelectCharacter;
    [SerializeField] private Sprite[] characterFaces;
    [SerializeField] private Image imageShowSelectedCharacter;

    private string roomcode;


    private void Start()
    {
        if (PlayerPrefs.HasKey("characterID"))
        {
            int id = PlayerPrefs.GetInt("characterID");
            imageShowSelectedCharacter.sprite = characterFaces[id];
        }
        else
        {
            PlayerPrefs.SetInt("characterID", 0);
            imageShowSelectedCharacter.sprite = characterFaces[0];
        }
        
        copiedMessage.SetActive(false);

        if (PlayerPrefs.HasKey("name"))
        {
            playerName.text = PlayerPrefs.GetString("name");
            layout0.SetActive(false);
            layout1.SetActive(true);
        }
        else
        {
            playerName.text = "";
            layout0.SetActive(true);
            layout1.SetActive(false);
        }

        layout2.SetActive(false);
        client = new TcpClient("185.245.96.48", 8051);
        buttonJoin.SetActive(false);
    }

    public void ButtonNewRoom()
    {
        Stream stream = client.GetStream();
        byte[] readMessage = new byte[10];

        //Send message new room
        stream.Write(new byte[] { 2, 0, 0, 0, 0, 0, 0, 0, 0, 0 });

        layout1.SetActive(false);
        layout2.SetActive(true);
        copiedMessage.SetActive(false);

        //wait for room code
        int i = stream.Read(readMessage, 0, 10);

        string code = Encoding.ASCII.GetString(readMessage);

        PlayerPrefs.SetString("roomcode", code);
        roomcode = code;
        PlayerPrefs.Save();

        layout2.GetComponentInChildren<TMP_Text>().text = "Your room code is: \n" + code;

        stream.Close();
    }

    public void ButtonFindPublicMatch()
    {
        Stream stream = client.GetStream();
        byte[] readMessage = new byte[10];
        
        stream.Write(new byte[]{4, 0, 0, 0, 0, 0, 0, 0, 0, 0});

        stream.Read(readMessage, 0, 10);

        string s = Encoding.ASCII.GetString(readMessage);
        Debug.Log(s);
        
        PlayerPrefs.SetString("roomcode", s);
        PlayerPrefs.Save();
        SceneManager.LoadScene(1, LoadSceneMode.Single);
        
        stream.Close();
    }

    public void ButtonJoin()
    {
        string code = roomCodeEnter.text.ToLower();
        roomcode = code;
        PlayerPrefs.SetString("roomcode", code);
        PlayerPrefs.Save();

        SceneManager.LoadScene(1, LoadSceneMode.Single);
        client.Close();
    }

    public void ButtonJoin2()
    {
        PlayerPrefs.SetString("roomcode", roomcode);
        PlayerPrefs.Save();

        SceneManager.LoadScene(1, LoadSceneMode.Single);
        client.Close();
    }

    public void ButtonBack()
    {
        client.Close();
        client = new TcpClient("185.245.96.48", 8051);
        Stream stream = client.GetStream();
        stream.Write(new byte[]{3, 0, 0, 0, 0, 0, 0, 0, 0, 0});
        byte[] roomCode = Encoding.ASCII.GetBytes(PlayerPrefs.GetString("roomcode"));
        stream.Write(roomCode);
        
        SceneManager.LoadScene(0, LoadSceneMode.Single);
    }

    public void ButtonCopy()
    {
        GUIUtility.systemCopyBuffer = PlayerPrefs.GetString("roomcode");
        copiedMessage.SetActive(true);
    }

    public void OnTextHasChanged(string s)
    {
        if (s.Length >= 10)
        {
            buttonJoin.SetActive(true);
        }
        else
        {
            buttonJoin.SetActive(false);
        }
    }

    public void OnTextHasChangedNameInput(string s)
    {
        if (s.Length > 0)
        {
            buttonSubmitName.SetActive(true);
        }
        else
        {
            buttonSubmitName.SetActive(false);
        }
    }

    public void ButtonSubmitName()
    {
        string name = nameEnter.text;
        if (name.Length > 2)
        {
            for (int i = name.Length; i < 10; i++)
            {
                name += " ";
            }

            PlayerPrefs.SetString("name", name);
            PlayerPrefs.Save();

            playerName.text = PlayerPrefs.GetString("name");

            layout0.SetActive(false);
            layout1.SetActive(true);
        }
        else
        {
            backgroundNameText.text = "to short...";
        }
    }

    public void ButtonEditName()
    {
        layout0.SetActive(true);
        layout1.SetActive(false);
    }

    private void OnApplicationQuit()
    {
        Stream stream = client.GetStream();
        stream.Write(new byte[] { 126, 0, 0, 0, 0, 0, 0, 0, 0 });
    }


    private void OnApplicationPause(bool pauseStatus)
    {
        Stream stream = client.GetStream();
        stream.Write(new byte[] { 126, 0, 0, 0, 0, 0, 0, 0, 0, 0 });
    }

    public void ButtonShowCharacterSelectMenu()
    {
        layout1.SetActive(false);
        layoutSelectCharacter.SetActive(true);
    }
    
    public void ButtonSelectCharacter(int index)
    {
        PlayerPrefs.SetInt("characterID", index);
        PlayerPrefs.Save();

        imageShowSelectedCharacter.sprite = characterFaces[index];
        
        layout1.SetActive(true);
        layoutSelectCharacter.SetActive(false);
    }
}