/*
 
  This Source Code Form is subject to the terms of the Mozilla Public
  License, v. 2.0. If a copy of the MPL was not distributed with this
  file, You can obtain one at http://mozilla.org/MPL/2.0/.
 
  Copyright (C) 2009-2020 Michael Möller <mmoeller@openhardwaremonitor.org>
	
*/

using OpenHardwareMonitor.Hardware;

namespace OpenHardwareMonitor.GUI {
  public class TypeNode : Node {

    private readonly PersistentSettings settings;
    private readonly SensorType sensorType;
    private readonly IHardware hardware;
    private readonly Identifier expandedIdentifier;

    public TypeNode(SensorType sensorType, IHardware hardware, 
      PersistentSettings settings) : base() 
    {
      this.settings = settings;
      this.sensorType = sensorType;
      this.hardware = hardware;

      switch (sensorType) {
        case SensorType.Voltage: 
          this.Image = Utilities.EmbeddedResources.GetImage("voltage.png");
          this.Text = "Voltages";
          break;
        case SensorType.Clock:
          this.Image = Utilities.EmbeddedResources.GetImage("clock.png");
          this.Text = "Clocks";
          break;
        case SensorType.Load:
          this.Image = Utilities.EmbeddedResources.GetImage("load.png");
          this.Text = "Load";
          break;
        case SensorType.Temperature:
          this.Image = Utilities.EmbeddedResources.GetImage("temperature.png");
          this.Text = "Temperatures";
          break;
        case SensorType.Fan:
          this.Image = Utilities.EmbeddedResources.GetImage("fan.png");
          this.Text = "Fans";
          break;
        case SensorType.Flow:
          this.Image = Utilities.EmbeddedResources.GetImage("flow.png");
          this.Text = "Flows";
          break;
        case SensorType.Control:
          this.Image = Utilities.EmbeddedResources.GetImage("control.png");
          this.Text = "Controls";
          break;
        case SensorType.Level:
          this.Image = Utilities.EmbeddedResources.GetImage("level.png");
          this.Text = "Levels";
          break;
        case SensorType.Power:
          this.Image = Utilities.EmbeddedResources.GetImage("power.png");
          this.Text = "Powers";
          break;
        case SensorType.Data:
          this.Image = Utilities.EmbeddedResources.GetImage("data.png");
          this.Text = "Data";
          break;
        case SensorType.SmallData :
          this.Image = Utilities.EmbeddedResources.GetImage("data.png");
          this.Text = "Data";
          break;
        case SensorType.Factor:
          this.Image = Utilities.EmbeddedResources.GetImage("factor.png");
          this.Text = "Factors";
          break;
        case SensorType.Throughput:
          this.Image = Utilities.EmbeddedResources.GetImage("throughput.png");
          this.Text = "Throughput";
          break;
      }

      NodeAdded += new NodeEventHandler(TypeNode_NodeAdded);
      NodeRemoved += new NodeEventHandler(TypeNode_NodeRemoved);

      this.expandedIdentifier = new Identifier(new Identifier(hardware.Identifier,
        sensorType.ToString().ToLowerInvariant()), "expanded");
      base.IsExpanded = 
        settings.GetValue(expandedIdentifier.ToString(), base.IsExpanded);
    }

    private void TypeNode_NodeRemoved(Node node) {
      node.IsVisibleChanged -= new NodeEventHandler(node_IsVisibleChanged);
      node_IsVisibleChanged(null);
    }    

    private void TypeNode_NodeAdded(Node node) {
      node.IsVisibleChanged += new NodeEventHandler(node_IsVisibleChanged);
      node_IsVisibleChanged(null);
    }

    private void node_IsVisibleChanged(Node node) {      
      foreach (Node n in Nodes)
        if (n.IsVisible) {
          this.IsVisible = true;
          return;
        }
      this.IsVisible = false;
    }

    public SensorType SensorType {
      get { return sensorType; }
    }

    public override bool IsExpanded {
      get {
        return base.IsExpanded;
      }
      set {
        if (base.IsExpanded != value) {
          base.IsExpanded = value;
          settings.SetValue(expandedIdentifier.ToString(), value);
        }
      }
    }
  }
}