using Ear = SharpLib.Ear;

using SharpLib.Ear;

using System;

using System.Collections.Generic;

using System.Diagnostics;

using System.Linq;

using System.Text;

using System.Threading.Tasks;

using System.Runtime.Serialization;

using System.Windows.Forms;

namespace SharpDisplayManager

{

    [DataContract]

    [AttributeObject(Id = "Harmony.Command", Name = "Harmony Command", Description = "Send a command to your Logitech Harmony Hub.")]

    class ActionHarmonyCommand : Ear.Action

    {

        [DataMember]

        public string DeviceId { get; set; } = "";

        [DataMember]

        public string Command { get; set; } = "";

        [DataMember]

        [AttributeObjectProperty(

        Id = "Harmony.Command.SelectCommand",

        Name = "Select command",

        Description = "Click to select a command."

        )]

        public PropertyButton SelectCommand { get; set; } = new PropertyButton { Text = "None" };

        /// <summary>

        /// 

        /// </summary>

        /// <returns></returns>

        public override string Brief()

        {

            string brief="Harmony: ";

            if (Program.HarmonyConfig != null)

            {

                //What if the device ID is not there anymore?

                brief += Program.HarmonyConfig.DeviceNameFromId(DeviceId);

            }

            else

            {

                //No config found just show the device ID then.

                brief += DeviceId;

            }

            // TODO: Fetch function label from command

            brief += " do " + Command;

            return brief;

        }

        protected override void DoConstruct()

        {

            base.DoConstruct();

            if (SelectCommand == null)

            {

                SelectCommand = new PropertyButton { Text = "None"};

            }

            SelectCommand.ClickEventHandler = ClickEventHandler;

        }

        /// <summary>

        /// 

        /// </summary>

        protected override void DoExecute()

        {

            //Fire and forget our command

            //TODO: check if the harmony client connection is opened

            if (Program.HarmonyClient!=null)

            {

                // Wait synchronously for now until we figure out how we could do async stuff in EAR.

                // TODO: Have an abort option in EAR. For instance we don't want to keep sending Harmony command if one failed.

                Task<bool> task = Program.HarmonyClient.TrySendKeyPressAsync(DeviceId, Command);

                bool result = task.Result; //Synchronously waiting for result

                Trace.WriteLine("ActionHarmonyCommand.DoExecute result: " + result.ToString());

            }

            else

            {

                Trace.WriteLine("WARNING: No Harmony client connection.");

            }            

        }

        /// <summary>

        /// 

        /// </summary>

        /// <returns></returns>

        public override bool IsValid()

        {

            if (Program.HarmonyConfig != null)

            {

                foreach (HarmonyHub.Device d in Program.HarmonyConfig.Devices)

                {

                    if (d.Id.Equals(DeviceId))

                    {

                        foreach (HarmonyHub.ControlGroup cg in d.ControlGroups)

                        {

                            foreach (HarmonyHub.Function f in cg.Functions)

                            {

                                if (f.Action.Command.Equals(Command))

                                {

                                    //We found our device and our function

                                    return true;

                                }

                            }

                        }

                    }

                }

            }

            return false;

        }

        /// <summary>

        /// 

        /// </summary>

        /// <param name="sender"></param>

        /// <param name="e"></param>

        void ClickEventHandler(object sender, EventArgs e)

        {

            FormSelectHarmonyCommand dlg = new FormSelectHarmonyCommand();

            DialogResult res = CodeProject.Dialog.DlgBox.ShowDialog(dlg);

            if (res == DialogResult.OK)

            {

                DeviceId = dlg.DeviceId;

                Command = dlg.Command;

                SelectCommand.Text = Brief();

                //Tell observer the object itself changed

                OnPropertyChanged("Brief");

            }

        }

    }

}