namespace LaaProductionWeb.Blazor.Components.HeliumTester.Models
{
    using System;
    using System.Collections.Generic;
    using System.Linq;
    using System.Reflection;

    public class RecipesCollectionModel
    {
        private readonly List<HeliumRecipeModel> heliumRecieps;
        private readonly List<WaterRecipeModel> waterRecieps;
        private MatchCollectionModel matchCollectionModel;

        public RecipesCollectionModel()
        {
            this.VHeliumRecipe = new HeliumRecipeModel();
            this.VWaterRecipe = new WaterRecipeModel();
            this.heliumRecieps = [];
            this.waterRecieps = [];

            this.VHeliumRecipe.PropertyChanged += this.VHeliumRecipePropertyChanged;
            this.VWaterRecipe.PropertyChanged += this.VWaterRecipePropertyChanged;
        }

        public event Action<HeliumRecipeModel> HeliumRecipeChanged;
        public event Action<WaterRecipeModel> WaterRecipeChanged;

        public HeliumRecipeModel VHeliumRecipe { get; }

        public WaterRecipeModel VWaterRecipe { get; }

        public IReadOnlyCollection<HeliumRecipeModel> HeliumRecipes
            => this.heliumRecieps;

        public IReadOnlyCollection<WaterRecipeModel> WaterRecipes
            => this.waterRecieps;

        public void LoadHeliumRecieps(IEnumerable<HeliumRecipeModel> heliumRecieps)
        {
            this.heliumRecieps.Clear();
            this.heliumRecieps.AddRange(heliumRecieps);

            foreach (var heliumRecipe in this.heliumRecieps)
            {
                heliumRecipe.RecipeChanged += this.OnHeliumRecipeChanged;
            }
        }

        public IEnumerable<HeliumRecipeModel> LoadHeliumRecieps(MatchCollectionModel matchCollection)
        {
            var heliumRecieps = this.heliumRecieps.AsEnumerable();

            if (heliumRecieps.Any())
            {
                var selectedRegionKeys = matchCollection
                    .Regions
                    .Where(x => x.Selected)
                    .Select(x => x.Key);

                if (selectedRegionKeys.Any())
                {
                    heliumRecieps = heliumRecieps.Where(x => selectedRegionKeys.Any(r => r == x.MatchRegion));
                }

                var selectedMeterSizesKeys = matchCollection
                    .MeterSizes
                    .Where(x => x.Selected)
                    .Select(x => x.Key);

                if (selectedMeterSizesKeys.Any())
                {
                    heliumRecieps = heliumRecieps.Where(x => selectedMeterSizesKeys.Any(r => r == x.MatchMeterSize));
                }

                var selectedBodyLengthKeys = matchCollection
                    .BodyLengths
                    .Where(x => x.Selected)
                    .Select(x => x.Key);

                if (selectedBodyLengthKeys.Any())
                {
                    heliumRecieps = heliumRecieps.Where(x => selectedBodyLengthKeys.Any(r => r == x.MatchBodyLength));
                }

                var selectedPressureSensorKeys = matchCollection
                    .PressureSensors
                    .Where(x => x.Selected)
                    .Select(x => x.Key);

                if (selectedPressureSensorKeys.Any())
                {
                    heliumRecieps = heliumRecieps.Where(x => selectedPressureSensorKeys.Any(r => r == x.MatchPressureSensor));
                }
            }

            return heliumRecieps.ToList();
        }

        public void LoadWaterRecieps(IEnumerable<WaterRecipeModel> waterRecieps)
        {
            this.waterRecieps.Clear();
            this.waterRecieps.AddRange(waterRecieps);

            foreach (var waterRecipe in this.waterRecieps)
            {
                waterRecipe.RecipeChanged += this.OnWaterRecipeChanged;
            }
        }

        public IEnumerable<WaterRecipeModel> LoadWaterRecieps(MatchCollectionModel matchCollection)
        {
            var waterRecieps = this.waterRecieps.AsEnumerable();

            if (waterRecieps.Any())
            {
                var selectedRegionKeys = matchCollection
                    .Regions
                    .Where(x => x.Selected)
                    .Select(x => x.Key);

                if (selectedRegionKeys.Any())
                {
                    waterRecieps = waterRecieps.Where(x => selectedRegionKeys.Any(r => r == x.MatchRegion));
                }

                var selectedMeterSizesKeys = matchCollection
                    .MeterSizes
                    .Where(x => x.Selected)
                    .Select(x => x.Key);

                if (selectedMeterSizesKeys.Any())
                {
                    waterRecieps = waterRecieps.Where(x => selectedMeterSizesKeys.Any(r => r == x.MatchMeterSize));
                }

                var selectedBodyLengthKeys = matchCollection
                    .BodyLengths
                    .Where(x => x.Selected)
                    .Select(x => x.Key);

                if (selectedBodyLengthKeys.Any())
                {
                    waterRecieps = waterRecieps.Where(x => selectedBodyLengthKeys.Any(r => r == x.MatchBodyLength));
                }

                var selectedPressureSensorKeys = matchCollection
                    .PressureSensors
                    .Where(x => x.Selected)
                    .Select(x => x.Key);

                if (selectedPressureSensorKeys.Any())
                {
                    waterRecieps = waterRecieps.Where(x => selectedPressureSensorKeys.Any(r => r == x.MatchPressureSensor));
                }
            }

            return waterRecieps.ToList();
        }

        internal void LoadMatchCollectionModel(MatchCollectionModel matchCollectionModel)
              => this.matchCollectionModel = matchCollectionModel;

        private void OnWaterRecipeChanged(WaterRecipeModel recipe)
             => this.WaterRecipeChanged?.Invoke(recipe);

        private void OnHeliumRecipeChanged(HeliumRecipeModel recipe)
             => this.HeliumRecipeChanged?.Invoke(recipe);

        private void VHeliumRecipePropertyChanged(string property)
        {
            var propertyInfo = typeof(HeliumRecipeModel).GetProperty(property, BindingFlags.Public | BindingFlags.Instance);
            var value = propertyInfo.GetValue(this.VHeliumRecipe);

            foreach (var heliumRecipe in this.LoadHeliumRecieps(this.matchCollectionModel))
            {
                propertyInfo.SetValue(heliumRecipe, value);
                this.HeliumRecipeChanged?.Invoke(heliumRecipe);
            }
        }

        private void VWaterRecipePropertyChanged(string property)
        {
            var propertyInfo = typeof(WaterRecipeModel).GetProperty(property, BindingFlags.Public | BindingFlags.Instance);
            var value = propertyInfo.GetValue(this.VWaterRecipe);

            foreach (var waterRecipe in this.LoadWaterRecieps(this.matchCollectionModel))
            {
                propertyInfo.SetValue(waterRecipe, value);
                this.WaterRecipeChanged?.Invoke(waterRecipe);
            }
        }
    }
}