/************************************************************************************
Filename    :   LipSyncDemo_SetCurrentTarget.cs
Content     :   Update LipSync Demo current target
Created     :   July 11, 2018
Copyright   :   Copyright Facebook Technologies, LLC and its affiliates.
                All rights reserved.

Licensed under the Oculus Audio SDK License Version 3.3 (the "License");
you may not use the Oculus Audio SDK except in compliance with the License,
which is provided at the time of installation or download, or which
otherwise accompanies this software in either electronic or hard copy form.

You may obtain a copy of the License at

https://developer.oculus.com/licenses/audio-3.3/

Unless required by applicable law or agreed to in writing, the Oculus Audio SDK
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.
************************************************************************************/
using UnityEngine;
#if UNITY_2019_1_OR_NEWER
using UnityEngine.XR;
#endif
using System.Collections;
using System.Collections.Generic;

public class LipSyncDemo_SetCurrentTarget : MonoBehaviour
{
    public EnableSwitch[] SwitchTargets;

    private int targetSet = 0;
    private int maxTarget = 6;
    private bool XRButtonBeingPressed = false;

    // Use this for initialization
    void Start ()
    {
        // Add a listener to the OVRTouchpad for touch events
        OVRTouchpad.AddListener(LocalTouchEventCallback);

        // Initialize the proper target set
        targetSet = 0;
        SwitchTargets[0].SetActive<OVRLipSyncContextMorphTarget>(0);
        SwitchTargets[1].SetActive<OVRLipSyncContextMorphTarget>(0);
    }

    // Update is called once per frame
    // Logic for LipSync_Demo
    void Update ()
    {
        if (Input.GetKeyDown(KeyCode.Alpha1))
        {
            targetSet = 0;
            SetCurrentTarget();
        }
        else if (Input.GetKeyDown(KeyCode.Alpha2))
        {
            targetSet = 1;
            SetCurrentTarget();
        }
        else if (Input.GetKeyDown(KeyCode.Alpha3))
        {
            targetSet = 2;
            SetCurrentTarget();
        }
        else if (Input.GetKeyDown(KeyCode.Alpha4))
        {
            targetSet = 3;
            SetCurrentTarget();
        }
        else if (Input.GetKeyDown(KeyCode.Alpha5))
        {
            targetSet = 4;
            SetCurrentTarget();
        }
        else if (Input.GetKeyDown(KeyCode.Alpha6))
        {
            targetSet = 5;
            SetCurrentTarget();

        }
        // Close app
        if (Input.GetKeyDown (KeyCode.Escape))
        {
           Application.Quit();
        }

        // VR controllers: primary buttons scrolls forward, secondary backwards
#if UNITY_2019_1_OR_NEWER
        var inputDevices = new List<InputDevice>();
#if UNITY_2019_3_OR_NEWER
        InputDevices.GetDevicesWithCharacteristics(InputDeviceCharacteristics.HeldInHand, inputDevices);
#else
        InputDevices.GetDevicesWithRole(InputDeviceRole.RightHanded, inputDevices);
#endif
        var primaryButtonPressed = false;
        var secondaryButtonPressed = false;
        foreach (var device in inputDevices)
        {
            bool boolValue;
            if (device.TryGetFeatureValue(CommonUsages.primaryButton, out boolValue) && boolValue)
            {
                primaryButtonPressed = true;
            }
            if (device.TryGetFeatureValue(CommonUsages.secondaryButton, out boolValue) && boolValue)
            {
                secondaryButtonPressed = true;
            }
        }
        if (primaryButtonPressed && !XRButtonBeingPressed)
        {
            targetSet++;
            if (targetSet >= maxTarget)
            {
              targetSet = 0;
            }
            SetCurrentTarget();
        }
        if (secondaryButtonPressed && !XRButtonBeingPressed)
        {
            targetSet--;
            if (targetSet < 0)
            {
              targetSet = maxTarget - 1;
            }
            SetCurrentTarget();
        }
        XRButtonBeingPressed = primaryButtonPressed || secondaryButtonPressed;
#endif
    }

    /// <summary>
    /// Sets the current target.
    /// </summary>
    void SetCurrentTarget()
    {
        switch(targetSet)
        {
        case(0):
            SwitchTargets[0].SetActive<OVRLipSyncContextMorphTarget>(0);
            SwitchTargets[1].SetActive<OVRLipSyncContextMorphTarget>(0);
            break;
        case(1):
            SwitchTargets[0].SetActive<OVRLipSyncContextTextureFlip>(0);
            SwitchTargets[1].SetActive<OVRLipSyncContextTextureFlip>(1);
            break;
        case(2):
            SwitchTargets[0].SetActive<OVRLipSyncContextMorphTarget>(1);
            SwitchTargets[1].SetActive<OVRLipSyncContextMorphTarget>(2);
            break;
        case(3):
            SwitchTargets[0].SetActive<OVRLipSyncContextTextureFlip>(1);
            SwitchTargets[1].SetActive<OVRLipSyncContextTextureFlip>(3);
            break;
        case(4):
            SwitchTargets[0].SetActive<OVRLipSyncContextMorphTarget>(2);
            SwitchTargets[1].SetActive<OVRLipSyncContextMorphTarget>(4);
            break;
        case(5):
            SwitchTargets[0].SetActive<OVRLipSyncContextTextureFlip>(2);
            SwitchTargets[1].SetActive<OVRLipSyncContextTextureFlip>(5);
            break;
        }
        OVRLipSyncDebugConsole.Clear();
    }

    /// <summary>
    /// Local touch event callback.
    /// </summary>
    /// <param name="touchEvent">Touch event.</param>
    void LocalTouchEventCallback(OVRTouchpad.TouchEvent touchEvent)
    {
        switch(touchEvent)
        {
            case(OVRTouchpad.TouchEvent.Left):

            targetSet--;
            if(targetSet < 0)
                targetSet = maxTarget - 1;

            SetCurrentTarget();

            break;

            case(OVRTouchpad.TouchEvent.Right):

            targetSet++;
            if(targetSet >= maxTarget)
                targetSet = 0;

            SetCurrentTarget();

            break;
        }
    }
}