PIbd-23_Starostin_I.K._Lainer_bazovyi/lainer/Lainer1/LainersGenericStorage.cs

using ProjectLainer.DrawningObjects;
using ProjectLainer.Entities;
using ProjectLainer.MovementStrategy;
using System.Text;

namespace ProjectLainer.Generics
{
    internal class LainersGenericStorage 
    {

        readonly Dictionary<LainersCollectionInfo, LainersGenericCollection<DrawingEntity, DrawningObjectLainer>> _lainerStorages;

        public List<LainersCollectionInfo> Keys => _lainerStorages.Keys.ToList();

        private readonly int _pictureWidth;

        private readonly int _pictureHeight;
        public LainersGenericStorage(int pictureWidth, int pictureHeight)
        {
            _lainerStorages = new Dictionary<LainersCollectionInfo, LainersGenericCollection<DrawingEntity, DrawningObjectLainer>>();
            _pictureWidth = pictureWidth;
            _pictureHeight = pictureHeight;
        }

        public void AddSet(string name)
        {
            //проверка
            var addItem = new LainersCollectionInfo(name, null);
            foreach(LainersCollectionInfo elem in Keys)
            {
                if (addItem.Equals(elem))
                {
                    return;
                }
            }
            _lainerStorages.Add(new LainersCollectionInfo(name, null), new LainersGenericCollection<DrawingEntity, DrawningObjectLainer>(_pictureWidth, _pictureHeight));
        }

        public void DelSet(string name)
        {
            var deleteItem = new LainersCollectionInfo(name, null);
            foreach (LainersCollectionInfo elem in Keys)
            {
                if (deleteItem.Equals(elem))
                {
                    _lainerStorages.Remove(elem);
                }
            }
            return;
        }

        public LainersGenericCollection<DrawingEntity, DrawningObjectLainer>? this[string ind]
        {
            get
            {
                var getItem = new LainersCollectionInfo(ind, null);
                foreach(LainersCollectionInfo elem in Keys)
                {
                    if (getItem.Equals(elem))
                    {
                        return _lainerStorages[elem];
                    }
                }
                return null;
            }
        }
        private static readonly char _separatorForKeyValue = '|';
        private readonly char _separatorRecords = ';';
        private static readonly char _separatorForObject = ':';
        public void SaveData(string filename)
        {
            if (File.Exists(filename))
            {
                File.Delete(filename);
            }
            StringBuilder data = new();
            foreach (KeyValuePair<LainersCollectionInfo, LainersGenericCollection<DrawingEntity, DrawningObjectLainer>> record in _lainerStorages)
            {
                StringBuilder records = new();
                foreach (DrawingEntity? elem in record.Value.GetLainers)
                {
                    records.Append($"{elem?.GetDataForSave(_separatorForObject)}{_separatorRecords}");
                }
                data.AppendLine($"{record.Key.Name}{_separatorForKeyValue}{records}");
            }
            if (data.Length == 0)
            {
                throw new ArgumentException("Невалиданя операция, нет данных для сохранения");
            }
            using FileStream fs = new(filename, FileMode.Create);
            byte[] info = new
            UTF8Encoding(true).GetBytes($"LainerStorage{Environment.NewLine}{data}");
            fs.Write(info, 0, info.Length);
            return;

        }
        public void LoadData(string filename)
        {
            if (!File.Exists(filename))
            {
                throw new Exception("Файл не найден");
            }
            string bufferTextFromFile = "";
            using (FileStream fs = new(filename, FileMode.Open))
            {
                byte[] b = new byte[fs.Length];
                UTF8Encoding temp = new(true);
                while (fs.Read(b, 0, b.Length) > 0)
                {
                    bufferTextFromFile += temp.GetString(b);
                }
            }
            var strs = bufferTextFromFile.Split(new char[] { '\n', '\r' },
            StringSplitOptions.RemoveEmptyEntries);
            if (strs == null || strs.Length == 0)
            {
                throw new NullReferenceException("Нет данных для загрузки");
            }
            if (!strs[0].StartsWith("CarStorage"))
            {
                //если нет такой записи, то это не те данные
                throw new ArgumentException("Неверный формат данных");
            }
            _lainerStorages.Clear();
            foreach (string data in strs)
            {
                string[] record = data.Split(_separatorForKeyValue,
                StringSplitOptions.RemoveEmptyEntries);
                if (record.Length != 2)
                {
                    continue;
                }
                LainersGenericCollection<DrawingEntity, DrawningObjectLainer>
                collection = new(_pictureWidth, _pictureHeight);
                string[] set = record[1].Split(_separatorRecords,
                StringSplitOptions.RemoveEmptyEntries);
                foreach (string elem in set)
                {
                    DrawingEntity? lainer =
                    elem?.CreateDrawningLainer(_separatorForObject, _pictureWidth, _pictureHeight);
                    if (lainer != null)
                    {
                        if (!(collection + lainer))
                        {
                            throw new OverflowException("Ошибка добавления в коллекцию");
                        }
                    }
                }
                _lainerStorages.Add(new LainersCollectionInfo(record[0],
                string.Empty), collection);
            }
        }
    }
}