using System;
using System.Collections.Generic;
using System.Drawing;
using System.Linq;
using System.Text;
using System.Threading.Tasks;

namespace Test_Merge
{
    public class Zone
    {
        private Rectangle _bounds;
        private List<Zone> _zones;
        private List<Window> _windows;
        private Bitmap _image;

        public Bitmap ZoneImage
        {
            get
            {
                //This little trickery lets you have the image that the zone sees
                Bitmap sample = new Bitmap(Bounds.Width, Bounds.Height);
                Graphics g = Graphics.FromImage(sample);
                g.DrawImage(Image, new Rectangle(0, 0, sample.Width, sample.Height), Bounds, GraphicsUnit.Pixel);
                return sample;
            }
        }
        public Bitmap Image
        {
            get { return _image; }
            set
            {
                //It automatically sets the image for the contained windows and zones
                _image = Image;
                foreach (Window w in Windows)
                {
                    w.Image = ZoneImage;
                }
                foreach (Zone z in Zones)
                {
                    z.Image = Image;
                }
            }
        }

        public Rectangle Bounds { get => _bounds; protected set => _bounds = value; }
        public List<Zone> Zones { get => _zones; protected set => _zones = value; }
        public List<Window> Windows { get => _windows; protected set => _windows = value; }

        public Zone(Bitmap image, Rectangle bounds)
        {
            Windows = new List<Window>();
            Zones = new List<Zone>();

            //You cant set the image in the CTOR because the processing is impossible at first initiation
            _image = image;
            Bounds = bounds;
        }
        /// <summary>
        /// Adds a zone to the list of zones
        /// </summary>
        /// <param name="zone">The zone you want to add</param>
        public virtual void AddZone(Zone zone)
        {
            Zones.Add(zone);
        }
        /// <summary>
        /// Add a window to the list of windows
        /// </summary>
        /// <param name="window">the window you want to add</param>
        public virtual void AddWindow(Window window)
        {
            Windows.Add(window);
        }
        /// <summary>
        /// Calls all the windows to do OCR and to give back the results so we can send them to the model
        /// </summary>
        /// <param name="driverList">A list of all the driver in the race to help with text recognition</param>
        /// <returns>A driver data object that contains all the infos about a driver</returns>
        public virtual async Task<DriverData> Decode(List<string> driverList)
        {
            DriverData result = new DriverData();
            Parallel.ForEach(Windows, async w =>
            {
                // A switch would be prettier but I dont think its supported in this C# version
                if (w is DriverNameWindow)
                    result.Name = (string)await (w as DriverNameWindow).DecodePng(driverList);
                if (w is DriverDrsWindow)
                    result.DRS = (bool)await (w as DriverDrsWindow).DecodePng();
                if (w is DriverGapToLeaderWindow)
                    result.GapToLeader = (int)await (w as DriverGapToLeaderWindow).DecodePng();
                if (w is DriverLapTimeWindow)
                    result.LapTime = (int)await (w as DriverLapTimeWindow).DecodePng();
                if (w is DriverPositionWindow)
                    result.Position = (int)await (w as DriverPositionWindow).DecodePng();
                if (w is DriverSector1Window)
                    result.Sector1 = (int)await (w as DriverSector1Window).DecodePng();
                if (w is DriverSector2Window)
                    result.Sector2 = (int)await (w as DriverSector2Window).DecodePng();
                if (w is DriverSector3Window)
                    result.Sector3 = (int)await (w as DriverSector3Window).DecodePng();
                if (w is DriverTyresWindow)
                    result.CurrentTyre = (Tyre)await (w as DriverTyresWindow).DecodePng();
            });
            return result;
        }
    }
}