FocusVolumeControlPlugin/src/FocusVolumeControl/DialAction.cs

using BarRaider.SdTools;
using BarRaider.SdTools.Payloads;
using CoreAudio;
using Newtonsoft.Json;
using Newtonsoft.Json.Linq;
using System;
using System.Collections.Generic;
using System.Data;
using System.Diagnostics;
using System.Drawing;
using System.IO;
using System.Linq;
using System.Runtime.InteropServices;
using System.Text;
using System.Threading;
using System.Threading.Tasks;

namespace FocusVolumeControl
{

    /*
    todo:
    link both discord processes
    steam not detecting

    long press reset

    option for what to do when on app without sound

    gitea
     */


    [PluginActionId("com.dlprows.focusvolumecontrol.dialaction")]
    public class DialAction : EncoderBase
    {
        private class PluginSettings
        {
            public static PluginSettings CreateDefaultSettings()
            {
                PluginSettings instance = new PluginSettings();
                return instance;
            }
        }

        private PluginSettings settings;
        //IntPtr _foregroundWindowChangedEvent;
        //WinEventDelegate _delegate;
        ActiveAudioSessionWrapper _currentAudioSession;
        AudioHelper _audioHelper = new AudioHelper();

        public DialAction(ISDConnection connection, InitialPayload payload) : base(connection, payload)
        {
            if (payload.Settings == null || payload.Settings.Count == 0)
            {
                settings = PluginSettings.CreateDefaultSettings();
                SaveSettings();
            }
            else
            {
                settings = payload.Settings.ToObject<PluginSettings>();
            }

            //_delegate = new WinEventDelegate(WinEventProc);
            //_foregroundWindowChangedEvent = SetWinEventHook(EVENT_SYSTEM_FOREGROUND, EVENT_SYSTEM_FOREGROUND, IntPtr.Zero, _delegate, 0, 0, WINEVENT_OUTOFCONTEXT);
        }

        public override async void DialDown(DialPayload payload)
        {
            //dial pressed down
            Logger.Instance.LogMessage(TracingLevel.INFO, "Dial Down");
            if(_currentAudioSession != null)
            {
                _currentAudioSession.Volume.Mute = !_currentAudioSession.Volume.Mute;
                var uiState = UIState.Build(_currentAudioSession);
                await Connection.SetFeedbackAsync(uiState);
            }
            else
            {
                await Connection.ShowAlert();
            }
        }

        public override async void TouchPress(TouchpadPressPayload payload)
        {
            Logger.Instance.LogMessage(TracingLevel.INFO, "Touch Press");
            if (payload.IsLongPress)
            {
                //todo: iterate through all sessions setting them back to 100 except the master volume
            }
            else
            {


                if (_currentAudioSession != null)
                {
                    _currentAudioSession.Volume.Mute = !_currentAudioSession.Volume.Mute;
                    var uiState = UIState.Build(_currentAudioSession);
                    await Connection.SetFeedbackAsync(uiState);
                }
                else
                {
                    await Connection.ShowAlert();
                }
            }
        }

        public override async void DialRotate(DialRotatePayload payload)
        {
            Logger.Instance.LogMessage(TracingLevel.INFO, "Dial Rotate");
            //dial rotated. ticks positive for right, negative for left
            if(_currentAudioSession != null)
            {
                _currentAudioSession.Volume.MasterVolume += (0.01f) * payload.Ticks;

                var uiState = UIState.Build(_currentAudioSession);
                await Connection.SetFeedbackAsync(uiState);
            }
            else
            {
                await Connection.ShowAlert();
            }
        }

        public override void DialUp(DialPayload payload)
        {
            //dial unpressed
            Logger.Instance.LogMessage(TracingLevel.INFO, "Dial Up");
        }

        public override void Dispose()
        {
            /*
            if(_foregroundWindowChangedEvent != IntPtr.Zero)
            {
                Native.UnhookWinEvent(_foregroundWindowChangedEvent);
            }
            */
        }

        public override async void OnTick()
        {
            //called once every 1000ms and can be used for updating the title/image fo the key
            var activeSession = _audioHelper.GetActiveSession();

            if (activeSession == null)
            {
                //todo: something?
            }
            else
            {
                _currentAudioSession = activeSession;
            }

            if(_currentAudioSession != null)
            {
                var uiState = UIState.BuildWithImage(_currentAudioSession);
                await Connection.SetFeedbackAsync(uiState);
            }
        }


        public override void ReceivedGlobalSettings(ReceivedGlobalSettingsPayload payload)
        {
        }


        public override void ReceivedSettings(ReceivedSettingsPayload payload)
        {
            Tools.AutoPopulateSettings(settings, payload.Settings);
            SaveSettings();
        }

        private Task SaveSettings()
        {
            return Connection.SetSettingsAsync(JObject.FromObject(settings));
        }


        /*
        public async void WinEventProc(IntPtr hWinEventHook, uint eventType, IntPtr hwnd, int idObject, int idChild, uint dwEventThread, uint dwmsEventTime)
        {
            var activeSession = _audioHelper.GetActiveSession();


            if(activeSession == null)
            {
                //todo: something?

            }
            else
            {
                _currentAudioSession = activeSession;

                //populate the UI
                await Connection.SetTitleAsync(_currentAudioSession.DisplayName);

            }
        }
        */
    }

}