UVtools/UVtools.Core/Managers/MaterialManager.cs

/*
 *                     GNU AFFERO GENERAL PUBLIC LICENSE
 *                       Version 3, 19 November 2007
 *  Copyright (C) 2007 Free Software Foundation, Inc. <https://fsf.org/>
 *  Everyone is permitted to copy and distribute verbatim copies
 *  of this license document, but changing it is not allowed.
 */
using System;
using System.Collections;
using System.Collections.Generic;
using System.Collections.ObjectModel;
using System.Diagnostics;
using System.IO;
using System.Linq;
using System.Xml.Serialization;
using UVtools.Core.Objects;

namespace UVtools.Core.Managers
{
    public class MaterialManager : BindableBase, IList<Material>
    {
        #region Settings

        public static string FilePath;
        #endregion

        #region Singleton

        private static Lazy<MaterialManager> _instanceHolder =
            new(() => new MaterialManager());

        /// <summary>
        /// Instance of <see cref="UserSettings"/> (singleton)
        /// </summary>
        public static MaterialManager Instance => _instanceHolder.Value;

        //public static List<Operation> Operations => _instance.Operations;
        #endregion

        #region Members

        private RangeObservableCollection<Material> _materials = new();

        #endregion

        #region Properties

        public RangeObservableCollection<Material> Materials
        {
            get => _materials;
            set => RaiseAndSetIfChanged(ref _materials, value);
        }

        /// <summary>
        /// Gets the total number of bottles in stock
        /// </summary>
        public int BottlesInStock => this.Sum(material => material.BottlesInStock);

        /// <summary>
        /// Gets the total number of bottles ever owned
        /// </summary>
        public int OwnedBottles => this.Sum(material => material.OwnedBottles);

        /// <summary>
        /// Gets the total of consumed volume in milliliters
        /// </summary>
        public decimal ConsumedVolume => this.Sum(material => material.ConsumedVolume);

        /// <summary>
        /// Gets the total of consumed volume in liters
        /// </summary>
        public decimal ConsumedVolumeLiters => this.Sum(material => material.ConsumedVolumeLiters);

        /// <summary>
        /// Gets the total volume in stock in milliliters
        /// </summary>
        public decimal VolumeInStock => this.Sum(material => material.VolumeInStock);

        /// <summary>
        /// Gets the total volume in stock in liters
        /// </summary>
        public decimal VolumeInStockLiters => VolumeInStock / 1000;

        /// <summary>
        /// Gets the total costs
        /// </summary>
        public decimal TotalCost => this.Sum(material => material.TotalCost);

        /// <summary>
        /// Gets the total print time in hours
        /// </summary>
        public double PrintTime => this.Sum(material => material.PrintTime);

        /// <summary>
        /// Gets the total print time
        /// </summary>
        public TimeSpan PrintTimeSpan => TimeSpan.FromHours(PrintTime);

        #endregion

        #region Constructor
        private MaterialManager()
        {
        }
        #endregion

        #region Methods
        public Material this[int index]
        {
            get => _materials[index];
            set => _materials[index] = value;
        }

        public Material this[uint index]
        {
            get => _materials[(int) index];
            set => _materials[(int) index] = value;
        }

        public Material this[Material material]
        {
            get
            {
                var index = IndexOf(material);
                return index < 0 ? this[index] : null;
            }
            set
            {
                var index = IndexOf(material);
                if(index >= 0) this[index] = value;
            }
        }

        public IEnumerator<Material> GetEnumerator() => _materials.GetEnumerator();
        IEnumerator IEnumerable.GetEnumerator() => GetEnumerator();

        public void Add(Material item)
        {
            _materials.Add(item);
            RaisePropertiesChanged();
        }

        public void Add(Material item, bool save)
        {
            Add(item);
            if (save) Save();
        }

        public void Clear()
        {
            _materials.Clear();
            RaisePropertiesChanged();
        }

        public void Clear(bool save)
        {
            Clear();
            if(save) Save();
        }


        public bool Contains(Material item) => _materials.Contains(item);

        public void CopyTo(Material[] array, int arrayIndex)
        {
            _materials.CopyTo(array, arrayIndex);
            RaisePropertiesChanged();
        }

        public bool Remove(Material item)
        {
            if (_materials.Remove(item))
            {
                RaisePropertiesChanged();
                return true;
            }

            return false;
        }

        public void Remove(Material item, bool save)
        {
            Remove(item);
            if (save) Save();
        }

        public void RemoveRange(IEnumerable<Material> collection)
        {
            _materials.RemoveRange(collection);
        }

        public int Count => _materials.Count;
        public bool IsReadOnly => false;
        public int IndexOf(Material item) => _materials.IndexOf(item);

        public void Insert(int index, Material item)
        {
            _materials.Insert(index, item);
            RaisePropertiesChanged();
        }

        public void Insert(int index, Material item, bool save)
        {
            Insert(index, item);
            if (save) Save();
        }

        public void RemoveAt(int index)
        {
            _materials.RemoveAt(index);
            RaisePropertiesChanged();
        }

        public void RemoveAt(int index, bool save)
        {
            RemoveAt(index);
            if (save) Save();
        }

        public void RaisePropertiesChanged()
        {
            RaisePropertyChanged(nameof(BottlesInStock));
            RaisePropertyChanged(nameof(OwnedBottles));
            RaisePropertyChanged(nameof(ConsumedVolume));
            RaisePropertyChanged(nameof(ConsumedVolumeLiters));
            RaisePropertyChanged(nameof(VolumeInStock));
            RaisePropertyChanged(nameof(VolumeInStockLiters));
            RaisePropertyChanged(nameof(TotalCost));
            RaisePropertyChanged(nameof(PrintTime));
            RaisePropertyChanged(nameof(PrintTimeSpan));
            RaisePropertyChanged(nameof(Count));
        }

        /// <summary>
        /// Load settings from file
        /// </summary>
        public static void Load()
        {
            if (string.IsNullOrWhiteSpace(FilePath) || !File.Exists(FilePath))
            {
                return;
            }

            var serializer = new XmlSerializer(Instance.GetType());
            try
            {
                using var myXmlReader = new StreamReader(FilePath);
                var instance = (MaterialManager)serializer.Deserialize(myXmlReader);
                _instanceHolder = new Lazy<MaterialManager>(() => instance);
            }
            catch (Exception e)
            {
                Debug.WriteLine(e.ToString());
            }
        }

        /// <summary>
        /// Save settings to file
        /// </summary>
        public static void Save()
        {
            var serializer = new XmlSerializer(Instance.GetType());
            try
            {
                using var myXmlWriter = new StreamWriter(FilePath);
                serializer.Serialize(myXmlWriter, Instance);
            }
            catch (Exception e)
            {
                Debug.WriteLine(e.ToString());
            }
        }

        public void SortByName()
        {
            _materials.Sort((material, material1) => string.Compare(material.Name, material1.Name, StringComparison.Ordinal));
        }

        #endregion
    }
}