PIbd-23_Nasyrov_A_G_AirplaneWithRadar_basic/ProjectAirplaneWithRadar/ProjectAirplaneWithRadar/AirplanesGenericStorage.cs

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

namespace ProjectAirplaneWithRadar.Generics
{
    internal class AirplanesGenericStorage
    {
        readonly Dictionary<AirplaneCollectionInfo, AirplanesGenericCollection<DrawningAirplane,DrawningObjectAirplane>> _airplanesStorages;
        public List<AirplaneCollectionInfo> Keys => _airplanesStorages.Keys.ToList();
        private readonly int _pictureWidth;
        private readonly int _pictureHeight;
        private static readonly char _separatorForKeyValue = '|';
        private readonly char _separatorRecords = ';';
        private static readonly char _separatorForObject = ':';
        public AirplanesGenericStorage(int pictureWidth, int pictureHeight)
        {
            _airplanesStorages = new Dictionary<AirplaneCollectionInfo,AirplanesGenericCollection<DrawningAirplane, DrawningObjectAirplane>>();
            _pictureWidth = pictureWidth;
            _pictureHeight = pictureHeight;
        }
        public bool SaveData(string filename)
        {
            if (File.Exists(filename))
            {
                File.Delete(filename);
            }
            StringBuilder data = new();
            foreach (KeyValuePair<AirplaneCollectionInfo,
            AirplanesGenericCollection<DrawningAirplane, DrawningObjectAirplane>> record in _airplanesStorages)
            {
                StringBuilder records = new();
                foreach (DrawningAirplane? elem in record.Value.GetAirplanes)
                {
                    records.Append($"{elem?.GetDataForSave(_separatorForObject)}{_separatorRecords}");
                }
                data.AppendLine($"{record.Key.Name}{_separatorForKeyValue}{records}");
            }
            if (data.Length == 0)
            {
                throw new Exception("Невалиданя операция, нет данных для сохранения");
            }
            string toWrite = $"AirplanesStorage{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))
            {
                throw new IOException("Файл не найден");
            }
            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)
                {
                    throw new IOException("Нет данных для загрузки");
                }
                if (!strs[0].StartsWith("AirplanesStorage"))
                {
                    throw new IOException("Неверный формат данных");
                }
                _airplanesStorages.Clear();
                do
                {
                    string[] record = str.Split(_separatorForKeyValue, StringSplitOptions.RemoveEmptyEntries);
                    if (record.Length != 2)
                    {
                        str = sr.ReadLine();
                        continue;
                    }
                    AirplanesGenericCollection<DrawningAirplane, DrawningObjectAirplane>
                    collection = new(_pictureWidth, _pictureHeight);
                    string[] set = record[1].Split(_separatorRecords, StringSplitOptions.RemoveEmptyEntries);
                    foreach (string elem in set)
                    {
                        DrawningAirplane? airplane =
                        elem?.CreateDrawningAirplane(_separatorForObject, _pictureWidth, _pictureHeight);
                        if (airplane != null)
                        {
                            if (!(collection + airplane))
                            {
                                return false;
                            }
                        }
                    }
                    _airplanesStorages.Add(new AirplaneCollectionInfo (record[0], string.Empty), collection);
                    str = sr.ReadLine();
                } while (str != null);
            }
            return true;
        }
        public void AddSet(string name)
            {
                _airplanesStorages.Add(new AirplaneCollectionInfo(name, string.Empty), new AirplanesGenericCollection<DrawningAirplane, DrawningObjectAirplane>(_pictureWidth, _pictureHeight));
            }
        public void DelSet(string name)
            {
                if (!_airplanesStorages.ContainsKey(new AirplaneCollectionInfo(name, string.Empty)))
                    return;
                _airplanesStorages.Remove(new AirplaneCollectionInfo(name, string.Empty));
            }        
        public AirplanesGenericCollection<DrawningAirplane, DrawningObjectAirplane>?this[string ind]
            {
                get
                {
                    AirplaneCollectionInfo indObj = new AirplaneCollectionInfo(ind, string.Empty);
                    if (_airplanesStorages.ContainsKey(indObj))
                        return _airplanesStorages[indObj];
                     return null;
                }
            }
    }
}