using System.Collections;
using System.Collections.Generic;
using UnityEngine;

public class ChangeChannel : MonoBehaviour
{
    private FMODUnity.StudioEventEmitter emitter;
    private FMOD.DSP dsp;
    private bool success = false;
    FMOD.RESULT result;
    // Start is called before the first frame update
    void Start()
    {
        emitter = GetComponent<FMODUnity.StudioEventEmitter>();
        StartCoroutine(GetDSP());
    }

    IEnumerator GetDSP()
    {
        yield return new WaitForSeconds(1.0f);

        // This will require the Transciever being on the master Channel in the Event in Studio.
        result = emitter.EventInstance.getChannelGroup(out FMOD.ChannelGroup master);
        if (result != FMOD.RESULT.OK)
        {
            Debug.Log(result.ToString());
        }

        FMOD.DSP_TYPE type = FMOD.DSP_TYPE.UNKNOWN;
        int index = 0;
        // This will be used to find the Transceiver in the list of DSP's on the event instance.
        // If you can be 100% certain of this positon then this can be skipped. E.g. find it before and hard code it.
        while (type != FMOD.DSP_TYPE.TRANSCEIVER)
        {
            result = master.getDSP(index, out dsp);
            if (result != FMOD.RESULT.OK)
            {
                Debug.Log(result.ToString());
                Debug.Log("Ran Out of DSP");
                break;
            }
            else
            {
                result = dsp.getType(out type);
                if (result != FMOD.RESULT.OK)
                {
                    Debug.Log(result.ToString());
                    Debug.Log("Failed to find the DSP Type");
                    break;
                }
                else if (type == FMOD.DSP_TYPE.TRANSCEIVER)
                {
                    Debug.Log("Found the DSP of the right type");
                }
            }
            index++;
        }
        success = true;
    }
    // Update is called once per frame
    void Update()
    {
        if (success)
        {
            if (Input.GetKeyDown(KeyCode.Alpha1))
            {
                result = dsp.setParameterInt(2, 0);
                if (result != FMOD.RESULT.OK)
                    Debug.Log(result);
            }
            if (Input.GetKeyDown(KeyCode.Alpha2))
            {
                result = dsp.setParameterInt(2, 1);
                if (result != FMOD.RESULT.OK)
                    Debug.Log(result);
            }
            if (Input.GetKeyDown(KeyCode.Alpha3))
            {
                result = dsp.setParameterInt(2, 2);
                if (result != FMOD.RESULT.OK)
                    Debug.Log(result);
            }
        }
    }
}