From c9f8764af04085abfb7bb77124f499e434c0fecf Mon Sep 17 00:00:00 2001
From: "ns.potapov" <ns.potapov@yandex.ru>
Date: Mon, 20 Nov 2023 17:53:29 +0400
Subject: [PATCH] =?UTF-8?q?=D0=94=D0=BE=D0=B1=D0=B0=D0=B2=D0=BB=D0=B5?=
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---
 .../PlanesGenericStorage.cs                   | 98 +++++++++++++++++++
 1 file changed, 98 insertions(+)

diff --git a/ProjectStormtrooper/ProjectStormtrooper/PlanesGenericStorage.cs b/ProjectStormtrooper/ProjectStormtrooper/PlanesGenericStorage.cs
index 078087f..5112af7 100644
--- a/ProjectStormtrooper/ProjectStormtrooper/PlanesGenericStorage.cs
+++ b/ProjectStormtrooper/ProjectStormtrooper/PlanesGenericStorage.cs
@@ -8,6 +8,18 @@ namespace ProjectStormtrooper
 {
     internal class PlanesGenericStorage
     {
+        /// <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>
@@ -66,5 +78,91 @@ namespace ProjectStormtrooper
                 return null;
             }
         }
+        /// <summary>
+        /// Сохранение информации в файл
+        /// </summary>
+        /// <param name="filename">Путь и имя файла</param>
+        /// <returns>true - сохранение прошло успешно, false - ошибка при сохранении данных</returns>
+        public bool SaveData(string filename)
+        {
+            if (File.Exists(filename))
+            {
+                File.Delete(filename);
+            }
+            StringBuilder data = new();
+            foreach (KeyValuePair<string, PlanesGenericCollection<DrawingPlane, DrawingObjectPlane>> record in _planeStorages)
+            {
+                StringBuilder records = new();
+                foreach (DrawingPlane? elem in record.Value.GetPlanes)
+                {
+                    records.Append($"{elem?.GetDataForSave(_separatorForObject)}{_separatorRecords}");
+                }
+                data.AppendLine($"{record.Key}{_separatorForKeyValue}{records}");
+            }
+            if (data.Length == 0)
+            {
+                return false;
+            }
+            using FileStream fs = new(filename, FileMode.Create);
+            byte[] info = new UTF8Encoding(true).GetBytes($"PlaneStorage{Environment.NewLine}{data}");
+            fs.Write(info, 0, info.Length);
+            return true;
+        }
+        /// <summary>
+        /// Загрузка информации по автомобилям в хранилище из файла
+        /// </summary>
+        /// <param name="filename">Путь и имя файла</param>
+        /// <returns>true - загрузка прошла успешно, false - ошибка при загрузке данных</returns>
+        public bool LoadData(string filename)
+        {
+            if (!File.Exists(filename))
+            {
+                return false;
+            }
+            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)
+            {
+                return false;
+            }
+            if (!strs[0].StartsWith("PlaneStorage"))
+            {
+                // если нет такой записи, то это не те данные
+                return false;
+            }
+            _planeStorages.Clear();
+            foreach (string data in strs)
+            {
+                string[] record = data.Split(_separatorForKeyValue, StringSplitOptions.RemoveEmptyEntries);
+                if (record.Length != 2)
+                {
+                    continue;
+                }
+                PlanesGenericCollection<DrawingPlane, DrawingObjectPlane> collection = new(_pictureWidth, _pictureHeight);
+                string[] set = record[1].Split(_separatorRecords, StringSplitOptions.RemoveEmptyEntries);
+                foreach (string elem in set)
+                {
+                    DrawingPlane? plane = elem?.CreateDrawingPlane(_separatorForObject, _pictureWidth, _pictureHeight);
+                    if (plane != null)
+                    {
+                        if (collection + plane == -1)
+                        {
+                            return false;
+                        }
+                    }
+                }
+                _planeStorages.Add(record[0], collection);
+            }
+            return true;
+        }
     }
 }