/******************************************************************************
// MARECHAI: Master repository of computing history artifacts information
// ----------------------------------------------------------------------------
//
// Filename       : Resolution.cs
// Author(s)      : Natalia Portillo <claunia@claunia.com>
//
// --[ Description ] ----------------------------------------------------------
//
//     Image resolution.
//
// --[ License ] --------------------------------------------------------------
//
//     This program is free software: you can redistribute it and/or modify
//     it under the terms of the GNU General Public License as
//     published by the Free Software Foundation, either version 3 of the
//     License, or (at your option) any later version.
//
//     This program is distributed in the hope that it will be useful,
//     but WITHOUT ANY WARRANTY; without even the implied warranty of
//     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
//     GNU General Public License for more details.
//
//     You should have received a copy of the GNU General Public License
//     along with this program.  If not, see <http://www.gnu.org/licenses/>.
//
// ----------------------------------------------------------------------------
// Copyright © 2003-2020 Natalia Portillo
*******************************************************************************/

using System.Collections.Generic;
using System.ComponentModel;
using System.ComponentModel.DataAnnotations;

namespace Marechai.Database.Models
{
    public class Resolution : BaseModel<int>
    {
        public Resolution()
        {
            ResolutionsByGpu = new HashSet<ResolutionsByGpu>();
        }

        [Required]
        [Range(1, 131072)]
        public int Width { get; set; }
        [Required]
        [Range(1, 131072)]
        public int Height { get; set; }
        [Range(2, 281474976710656)]
        public long? Colors { get; set; }
        [Range(2, 281474976710656)]
        public long? Palette { get; set; }
        [DisplayName("Character based")]
        public bool Chars { get; set; }
        [DisplayName("Grayscale")]
        public bool Grayscale { get; set; }

        public virtual ICollection<ResolutionsByGpu>    ResolutionsByGpu    { get; set; }
        public virtual ICollection<ResolutionsByScreen> ResolutionsByScreen { get; set; }
        public virtual ICollection<Screen>              Screens             { get; set; }

        public long? PaletteView => Palette ?? Colors;

        public override string ToString()
        {
            if(Chars)
            {
                if(Colors == null) return $"{Width}x{Height} characters";

                if(Palette != null && Colors != Palette)
                    return Grayscale
                               ? $"{Width}x{Height} characters at {Colors} grays from a palette of {Palette}"
                               : $"{Width}x{Height} characters at {Colors} colors from a palette of {Palette}";

                return Colors == 2 && Grayscale
                           ? $"{Width}x{Height} black and white characters"
                           : $"{Width}x{Height} characters at {Colors} colors";
            }

            if(Colors == null) return $"{Width}x{Height} pixels";

            if(Palette != null && Colors != Palette)
                return Grayscale
                           ? $"{Width}x{Height} pixels at {Colors} grays from a palette of {Palette}"
                           : $"{Width}x{Height} pixels at {Colors} colors from a palette of {Palette}";

            return Colors == 2 && Grayscale
                       ? $"{Width}x{Height} black and white pixels"
                       : $"{Width}x{Height} pixels at {Colors} colors";
        }
    }
}