CtrEditor/ObjetosSim/HydraulicComponents/FluidProperties.cs

using System;
using System.ComponentModel;
using Newtonsoft.Json;

namespace CtrEditor.ObjetosSim
{
    /// <summary>
    /// Tipos de fluido en el sistema hidráulico
    /// </summary>
    public enum FluidType
    {
        [Description("Aire (tanque vacío)")]
        Air,
        [Description("Agua")]
        Water,
        [Description("Jarabe con sacarosa")]
        Syrup,
        [Description("Soda cáustica (CIP)")]
        CausticSoda,
        [Description("Mezcla")]
        Mix
    }

    /// <summary>
    /// Propiedades de un fluido en el sistema
    /// </summary>
    [JsonObject(MemberSerialization.OptIn)]
    public class FluidProperties
    {
        [JsonProperty]
        public FluidType Type { get; set; } = FluidType.Water;
        
        [JsonProperty]
        public double Temperature { get; set; } = 20.0; // °C
        
        [JsonProperty]
        public double Brix { get; set; } = 0.0; // % para jarabes
        
        [JsonProperty]
        public double Concentration { get; set; } = 0.0; // % para soda cáustica
        
        [JsonProperty]
        public double Volume { get; set; } = 0.0; // Litros
        
        /// <summary>
        /// Densidad del fluido en kg/L
        /// </summary>
        [JsonIgnore]
        public double Density
        {
            get
            {
                return Type switch
                {
                    FluidType.Air => 0.0012, // kg/L a 20°C
                    FluidType.Water => 1.0 - (Temperature - 20) * 0.0002, // Aproximación
                    FluidType.Syrup => 1.0 + (Brix * 0.004), // Aproximación: +0.4% densidad por grado Brix
                    FluidType.CausticSoda => 1.0 + (Concentration * 0.01), // Aproximación
                    FluidType.Mix => 1.0, // Se calculará en runtime
                    _ => 1.0
                };
            }
        }
        
        /// <summary>
        /// Viscosidad dinámica en cP (centipoise)
        /// </summary>
        [JsonIgnore]
        public double Viscosity
        {
            get
            {
                return Type switch
                {
                    FluidType.Air => 0.018,
                    FluidType.Water => Math.Max(0.3, 1.0 - (Temperature - 20) * 0.025), // Disminuye con temperatura
                    FluidType.Syrup => Math.Max(1.0, 1.0 + Math.Pow(Brix / 10.0, 2.5)), // Aumenta exponencialmente con Brix
                    FluidType.CausticSoda => Math.Max(0.8, 1.0 + Concentration * 0.02),
                    FluidType.Mix => 1.0, // Se calculará en runtime
                    _ => 1.0
                };
            }
        }
        
        /// <summary>
        /// Color representativo del fluido para UI
        /// </summary>
        [JsonIgnore]
        public string Color
        {
            get
            {
                return Type switch
                {
                    FluidType.Air => "#E0E0E0",
                    FluidType.Water => "#87CEEB",
                    FluidType.Syrup => $"#{Math.Min(255, 139 + (int)(Brix * 2)):X2}{Math.Min(255, 69 + (int)(Brix)):X2}19", // Marrón más intenso con más Brix
                    FluidType.CausticSoda => "#FF6347",
                    FluidType.Mix => "#DDA0DD",
                    _ => "#CCCCCC"
                };
            }
        }
        
        /// <summary>
        /// Descripción del fluido
        /// </summary>
        [JsonIgnore]
        public string Description
        {
            get
            {
                return Type switch
                {
                    FluidType.Air => "Aire",
                    FluidType.Water => $"Agua {Temperature:F1}°C",
                    FluidType.Syrup => $"Jarabe {Brix:F1}°Bx {Temperature:F1}°C",
                    FluidType.CausticSoda => $"NaOH {Concentration:F1}% {Temperature:F1}°C",
                    FluidType.Mix => $"Mezcla {Temperature:F1}°C",
                    _ => "Fluido"
                };
            }
        }
        
        public FluidProperties()
        {
        }
        
        public FluidProperties(FluidType type, double temperature = 20.0, double brix = 0.0, double concentration = 0.0)
        {
            Type = type;
            Temperature = temperature;
            Brix = brix;
            Concentration = concentration;
        }
        
        /// <summary>
        /// Crea una copia de las propiedades del fluido
        /// </summary>
        public FluidProperties Clone()
        {
            return new FluidProperties(Type, Temperature, Brix, Concentration) { Volume = Volume };
        }
        
        /// <summary>
        /// Mezcla este fluido con otro fluido
        /// </summary>
        public FluidProperties MixWith(FluidProperties other, double mixRatio)
        {
            if (other == null || mixRatio <= 0) return this.Clone();
            if (mixRatio >= 1) return other.Clone();
            
            var mixed = new FluidProperties
            {
                Type = FluidType.Mix,
                Temperature = Temperature * (1 - mixRatio) + other.Temperature * mixRatio,
                Brix = Brix * (1 - mixRatio) + other.Brix * mixRatio,
                Concentration = Concentration * (1 - mixRatio) + other.Concentration * mixRatio,
                Volume = Volume + other.Volume
            };
            
            return mixed;
        }
    }
    
    /// <summary>
    /// Estado de mezcla del tanque
    /// </summary>
    public enum MixingState
    {
        [Description("Solo fluido primario")]
        PrimaryOnly,
        [Description("Solo fluido secundario")]
        SecondaryOnly,
        [Description("Vaciando secundario")]
        EmptyingSecondary,
        [Description("Mezclando")]
        Mixing,
        [Description("Vaciando primario")]
        EmptyingPrimary,
        [Description("Vacío")]
        Empty
    }
}