using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using FB_USB_2011;
using FuseGL.GUI;

namespace HVAC_Example
{
    public class HVAC_Example
    {
        public enum FanSpeed
        {
            OFF,
            LOW,
            MEDIUM,
            HIGH
        }

        internal class MyInternalHVAC_FanSpeed_Class
        {
            public FB_Monitor.DigitalOutputPort DigitalOutputPort;
            public FuseGL.GUI.FGLO_Texture FGLO_Texture;

            public MyInternalHVAC_FanSpeed_Class(FB_Monitor.DigitalOutputPort digitalOutputPort, FGLO_Texture fgloTexture)
            {
                DigitalOutputPort = digitalOutputPort;
                FGLO_Texture = fgloTexture;
            }
        }

        internal Dictionary<FanSpeed, MyInternalHVAC_FanSpeed_Class> FanSpeedLookupDictionary = new Dictionary<FanSpeed,MyInternalHVAC_FanSpeed_Class>();
        internal FanSpeed currentFanSpeed = FanSpeed.OFF;

        public void setup_HVAC(
                                FuseGL.GUI.FuseGL_Object displayFuseGL_Object_for_fan_speed,
                                FB_Monitor.DigitalOutputPort _digitalOutputPort_for_fan_off, 
                                FB_Monitor.DigitalOutputPort _digitalOutputPort_for_fan_low, 
                                FB_Monitor.DigitalOutputPort _digitalOutputPort_for_fan_medium, 
                                FB_Monitor.DigitalOutputPort _digitalOutputPort_for_fan_high
                              )
        {
            // Setup FanSpeed textures and ports
            FanSpeedLookupDictionary.Add(FanSpeed.OFF, new MyInternalHVAC_FanSpeed_Class(_digitalOutputPort_for_fan_off, FGLO_Texture.MakeQuickFGLOTexture___ConvertFromExternalImagePath("HVAC_Fan_Control___FanSpeedImage___OFF", "images/HVAC/FanSpeed/Off.png")));
            FanSpeedLookupDictionary.Add(FanSpeed.LOW, new MyInternalHVAC_FanSpeed_Class(_digitalOutputPort_for_fan_low, FGLO_Texture.MakeQuickFGLOTexture___ConvertFromExternalImagePath("HVAC_Fan_Control___FanSpeedImage___LOW", "images/HVAC/FanSpeed/Low.png")));
            FanSpeedLookupDictionary.Add(FanSpeed.MEDIUM, new MyInternalHVAC_FanSpeed_Class(_digitalOutputPort_for_fan_medium, FGLO_Texture.MakeQuickFGLOTexture___ConvertFromExternalImagePath("HVAC_Fan_Control___FanSpeedImage___MEDIUM", "images/HVAC/FanSpeed/Medium.png")));
            FanSpeedLookupDictionary.Add(FanSpeed.HIGH, new MyInternalHVAC_FanSpeed_Class(_digitalOutputPort_for_fan_high, FGLO_Texture.MakeQuickFGLOTexture___ConvertFromExternalImagePath("HVAC_Fan_Control___FanSpeedImage___HIGH", "images/HVAC/FanSpeed/High.png")));

            // Hook into when the FGLO is pressed
            displayFuseGL_Object_for_fan_speed.MouseEvent___ClickDown += new FuseGL_Object.FuseGL_FGLO_MouseEvent(ChangeHVAC_FanSpeed_Button_Was_Pressed);

            // Change the image to something known to begin with
            ChangeFanSpeed(currentFanSpeed, displayFuseGL_Object_for_fan_speed);
        }

        void  ChangeHVAC_FanSpeed_Button_Was_Pressed(object sender, FuseGL.FuseGL_GUI.MouseEventInformation MouseInfo)
        {
            switch(currentFanSpeed)
            {
                case FanSpeed.OFF:
                    currentFanSpeed = FanSpeed.LOW;
                    break;
                case FanSpeed.LOW:
                    currentFanSpeed = FanSpeed.MEDIUM;
                    break;
                case FanSpeed.MEDIUM:
                    currentFanSpeed = FanSpeed.HIGH;
                    break;
                case FanSpeed.HIGH:
                    currentFanSpeed = FanSpeed.OFF;
                    break;
            }

            ChangeFanSpeed(currentFanSpeed, (FuseGL.GUI.FuseGL_Object)sender);
        }

        public void ChangeFanSpeed(FanSpeed _speed, FuseGL.GUI.FuseGL_Object fanSpeedFGLO = null)
        {
            // Put some info in the trace for debugging perhaps?
            FuseGL.FuseGL_Debugger.Trace.Add("Changing Fan Speed to: " + _speed);

            // First turn off all the outputs
            foreach(KeyValuePair<FanSpeed, MyInternalHVAC_FanSpeed_Class> aFanSpeed in FanSpeedLookupDictionary)
            {
                aFanSpeed.Value.DigitalOutputPort.Value = FB_Monitor.DigitalOutputPort.DIGITAL_OUTPUT_OFF;
            }

            // Then if it is a valid fan speed and the dictionary has been setup properly...
            if(FanSpeedLookupDictionary.ContainsKey(_speed))
            {
                // Turn that output on
                FanSpeedLookupDictionary[_speed].DigitalOutputPort.Value = FB_Monitor.DigitalOutputPort.DIGITAL_OUTPUT_ON;

                // If the FGLO to display a picture in is valid...
                if (fanSpeedFGLO != null)
                {
                    // Change the texture to the correct one depicting the new fan speed
                    fanSpeedFGLO.TextureIsBeingOverriddenAndControlledExternally = true;
                    fanSpeedFGLO.TextureToOverrideWith = FanSpeedLookupDictionary[_speed].FGLO_Texture;
                }
            }
            return;
        }
    }
}