using System.Collections;
using System.Collections.Generic;
using UnityEngine;
using UnityEngine.Android;
using UnityEngine.UI;

public class RTKDevManager : MonoBehaviour
{
    private Text textConnState;

    private Button btnTest;
    private Text textTestPrompt;


    private Button btnConnect;
    private Text textConnStatus;
    // Start is called before the first frame update
    private Button btnDisconnect;


    private Button btnDiscovery;
    private Text textDiscovery;


    private string mStrMacAddr = "20:AC:3B:26:C7:EB";

    void Start()
    {
        RTKDev.RequestPermissions();
        RTKDev.EnsureInstance();

        InitControls();

    }


    void InitControls()
    {

        GameObject go1 = GameObject.Find("/Canvas/ButtonConn");
        btnConnect = go1.GetComponent<Button>();

        GameObject go2 = GameObject.Find("/Canvas/TextConn");
        textConnStatus = go2.GetComponent<Text>();

        GameObject go3 = GameObject.Find("/Canvas/ButtonTest");
        btnTest = go3.GetComponent<Button>();

        GameObject go4 = GameObject.Find("/Canvas/TextTest");
        textTestPrompt = go4.GetComponent<Text>();

        GameObject go5 = GameObject.Find("/Canvas/ButtonDisc");
        btnDiscovery = go5.GetComponent<Button>();

        GameObject go6 = GameObject.Find("/Canvas/TextDisc");
        textDiscovery = go6.GetComponent<Text>();

        GameObject go7 = GameObject.Find("/Canvas/TextConnState");
        textConnState = go7.GetComponent<Text>();

        GameObject go8 = GameObject.Find("/Canvas/ButtonDisconn");
        btnDisconnect = go8.GetComponent<Button>();


        btnDiscovery.onClick.AddListener(Discovery);
        btnConnect.onClick.AddListener(Connect);
        btnTest.onClick.AddListener(Test);
        btnDisconnect.onClick.AddListener(Disconnect);
    }


    void Discovery()
    {
        BluetoothManager.StartDiscovery();
        textDiscovery.text = ("Start Searching...");
        StopAllCoroutines();
        StartCoroutine(PopulateListAsync());

    }

    IEnumerator PopulateListAsync()
    {
        bool founded = false;
        while (true)
        {
            // Get List
            var deviceList = BluetoothManager.GetAvailableDevices();

            // Populate List
            foreach (var device in deviceList)
            {
                int len = deviceList.Count;
                if (device.mac.Equals(mStrMacAddr))
                {
                    textDiscovery.text = ("Dev founded");
                    founded = true;
                    break;
                }

            }
            if (founded == true)
            {
                yield return null;
            }
            else
            {
                // update every 1s
                // print("Updated device list. count="+deviceList.Length);
                textDiscovery.text = "Dev re discovery";
                yield return new WaitForSecondsRealtime(1);

            }
        }
    }

    void Connect()
    {
        RTKDev.Connect();

        int i = 0;
    }



    void Disconnect()
    {
        RTKDev.Disconnect();

        int i = 0;
    }


    void Test()
    {
        StopAllCoroutines();
        int result = RTKDev.Test();
        textTestPrompt.text = string.Format("Add Result from unity:{0}\n", result);

    }


    // Update is called once per frame
    void Update()
    {

    }

    void OnGUI()
    {
        int state = RTKDev.GetConnectState();

        if (state == 0)
        {
            textConnState.text = "Not Connect";
        }
        else if (state == 1)
        {
            textConnState.text = "Connecting";
        }
        else if (state == 2)
        {
            textConnState.text = "Connected";
        }
        else
        {
            textConnState.text = "Unknown";
        }

    }


}