PIbd-23_Valova_A.D._DumpTruck._Base/DumpTruck/DumpTruck/CarsGenericStorage.cs

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using DumpTruck.DrawningObjects;
using DumpTruck.MovementStrategy;

namespace DumpTruck.Generics
{
    internal class CarsGenericStorage
    {
        /// <summary>
        /// Разделитель для записи ключа и значения элемента словаря
        /// </summary>
        private static readonly char _separatorForKeyValue = '|';
        /// <summary>
        /// Разделитель для записей коллекции данных в файл
        /// </summary>
        private readonly char _separatorRecords = ';';
        /// <summary>
        /// Разделитель для записи информации по объекту в файл
        /// </summary>
        private static readonly char _separatorForObject = ':';
        /// <summary>
        /// Словарь (хранилище)
        /// </summary>
        readonly Dictionary<string, CarsGenericCollection<DrawningCar,
        DrawningObjectCar>> _carStorages;
        /// <summary>
        /// Возвращение списка названий наборов
        /// </summary>
        public List<string> Keys => _carStorages.Keys.ToList();
        /// <summary>
        /// Ширина окна отрисовки
        /// </summary>
        private readonly int _pictureWidth;
        /// <summary>
        /// Высота окна отрисовки
        /// </summary>
        private readonly int _pictureHeight;
        /// <summary>
        /// Конструктор
        /// </summary>
        /// <param name="pictureWidth"></param>
        /// <param name="pictureHeight"></param>
        public CarsGenericStorage(int pictureWidth, int pictureHeight)
        {
            _carStorages = new Dictionary<string,
            CarsGenericCollection<DrawningCar, DrawningObjectCar>>();
            _pictureWidth = pictureWidth;
            _pictureHeight = pictureHeight;
        }
        /// <summary>
        /// Добавление набора
        /// </summary>
        /// <param name="name">Название набора</param>
        public void AddSet(string name)
        {
            // TODO Прописать логику для добавления
            _carStorages.Add(name, new CarsGenericCollection<DrawningCar, DrawningObjectCar>(_pictureWidth, _pictureHeight));
        }
        /// <summary>
        /// Удаление набора
        /// </summary>
        /// <param name="name">Название набора</param>
        public void DelSet(string name)
        {
            if (!_carStorages.ContainsKey(name))
            {
                return;
            }
            _carStorages.Remove(name);
        }
        /// <summary>
        /// Доступ к набору
        /// </summary>
        /// <param name="ind"></param>
        /// <returns></returns>
        public CarsGenericCollection<DrawningCar, DrawningObjectCar>?
        this[string ind]
        {
            get
            {
                if (_carStorages.ContainsKey(ind))
                {
                    return _carStorages[ind];
                }
                return null;
            }
        }

        public bool SaveData(string filename)
        {
            if (File.Exists(filename))
            {
                File.Delete(filename);
            }
            StringBuilder data = new();
            foreach (KeyValuePair<string,
CarsGenericCollection<DrawningCar, DrawningObjectCar>> record in _carStorages)
            {
                StringBuilder records = new();
                foreach (DrawningCar? elem in record.Value.GetCars)
                {
                    records.Append($"{elem?.GetDataForSave(_separatorForObject)}{_separatorRecords}");
                }
                data.AppendLine($"{record.Key}{_separatorForKeyValue}{records}");
            }

            if (data.Length == 0)
            {
                return false;
            }
            string toWrite = $"CarStorage{Environment.NewLine}{data}";
            var strs = toWrite.Split(new char[] { '\n', '\r' },
StringSplitOptions.RemoveEmptyEntries);

            using (StreamWriter sw = new(filename))
            {
                foreach (var str in strs)
                {
                    sw.WriteLine(str);
                }
            }
            return true;
        }

        public bool LoadData(string filename)
        {
            {
                if (!File.Exists(filename))
                {
                    return false;
                }
                using (StreamReader sr = new(filename))
                {
                    string str = sr.ReadLine();
                    var strs = str.Split(new char[] { '\n', '\r' },
    StringSplitOptions.RemoveEmptyEntries);
                    if (strs == null || strs.Length == 0)
                    {
                        return false;
                    }
                    if (!strs[0].StartsWith("CarStorage"))
                    {
                        return false;
                    }
                    _carStorages.Clear();
                    do
                    {
                        string[] record = str.Split(_separatorForKeyValue,
        StringSplitOptions.RemoveEmptyEntries);
                        if (record.Length != 2)
                        {
                            str = sr.ReadLine();
                            continue;
                        }
                        CarsGenericCollection<DrawningCar, DrawningObjectCar>
        collection = new(_pictureWidth, _pictureHeight);
                        string[] set = record[1].Split(_separatorRecords,
                        StringSplitOptions.RemoveEmptyEntries);
                        foreach (string elem in set)
                        {
                            DrawningCar? car = elem?.CreateDrawningCar(_separatorForObject, _pictureWidth, _pictureHeight);
                            if (car != null)
                            {
                                if (collection + car == -1)
                                {
                                    return false;
                                }
                            }
                        }
                        _carStorages.Add(record[0], collection);

                        str = sr.ReadLine();
                    } while (str != null);
                }

                return true;
            }
        }


    }

}