using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using Tango.BL.Entities;
using Tango.ColorConversion;
using Tango.PPC.Common.Models;
using Tango.SharedUI;

namespace Tango.PPC.Jobs.Dialogs
{
    /// <summary>
    /// Represents the fine tuning pallet dialog ViewModel.
    /// </summary>
    /// <seealso cref="Tango.SharedUI.DialogViewVM" />
    public class FineTuningPaletteViewVM : DialogViewVM
    {
        private Job _job;
        private bool _prevent_change;
        private IColorConverter _converter;

        private List<ColorConversionSuggestion> _suggestions;
        /// <summary>
        /// Gets or sets the triplet suggestions.
        /// </summary>
        public List<ColorConversionSuggestion> Suggestions
        {
            get { return _suggestions; }
            set { _suggestions = value; RaisePropertyChangedAuto(); }
        }

        private List<ColorConversionSuggestion> _hiveSuggestions;
        /// <summary>
        /// Gets or sets the hive suggestions.
        /// </summary>
        public List<ColorConversionSuggestion> HiveSuggestions
        {
            get { return _hiveSuggestions; }
            set { _hiveSuggestions = value; RaisePropertyChangedAuto(); }
        }

        private ColorConversionSuggestion _selectedHiveSuggestion;
        /// <summary>
        /// Gets or sets the selected hive suggestion.
        /// </summary>
        public ColorConversionSuggestion SelectedHiveSuggestion
        {
            get { return _selectedHiveSuggestion; }
            set { _selectedHiveSuggestion = value; RaisePropertyChangedAuto(); OnSelectedHiveSuggestionChanged(); }
        }

        private ColorConversionSuggestion _selectedSuggestion;
        /// <summary>
        /// Gets or sets the selected triplet suggestion.
        /// </summary>
        public ColorConversionSuggestion SelectedSuggestion
        {
            get { return _selectedSuggestion; }
            set { _selectedSuggestion = value; RaisePropertyChangedAuto(); }
        }

        /// <summary>
        /// Initializes a new instance of the <see cref="FineTuningPaletteViewVM"/> class.
        /// </summary>
        public FineTuningPaletteViewVM()
        {
            Suggestions = new List<ColorConversionSuggestion>();
            HiveSuggestions = new List<ColorConversionSuggestion>();

            _converter = new DefaultColorConverter();
        }

        /// <summary>
        /// Called when the selected hive suggestion has been changed
        /// </summary>
        private void OnSelectedHiveSuggestionChanged()
        {
            if (!_prevent_change)
            {
                Suggestions = _converter.Convert(_job, SelectedHiveSuggestion.Color, true).CreateTrippletSuggestions();
                SelectedSuggestion = Suggestions.GetCenterSuggestion();
            }
        }

        /// <summary>
        /// Initializes a new instance of the <see cref="FineTuningPaletteViewVM"/> class.
        /// </summary>
        /// <param name="fineTuneItem">The fine tune item.</param>
        /// <param name="job">The job.</param>
        public FineTuningPaletteViewVM(FineTuneItem fineTuneItem, Job job) : this()
        {
            _prevent_change = true;
            _job = job;
            Suggestions = fineTuneItem.Suggestions;
            HiveSuggestions = fineTuneItem.HiveSuggestions;
            SelectedHiveSuggestion = HiveSuggestions.GetCenterSuggestion();
            SelectedSuggestion = Suggestions[Suggestions.Count / 2];
            _prevent_change = false;
        }
    }
}