Closes #2787

ArchiSteamFarm/Storage/GenericDatabase.cs

@@ -0,0 +1,82 @@
+//     _                _      _  ____   _                           _____
+//    / \    _ __  ___ | |__  (_)/ ___| | |_  ___   __ _  _ __ ___  |  ___|__ _  _ __  _ __ ___
+//   / _ \  | '__|/ __|| '_ \ | |\___ \ | __|/ _ \ / _` || '_ ` _ \ | |_  / _` || '__|| '_ ` _ \
+//  / ___ \ | |  | (__ | | | || | ___) || |_|  __/| (_| || | | | | ||  _|| (_| || |   | | | | | |
+// /_/   \_\|_|   \___||_| |_||_||____/  \__|\___| \__,_||_| |_| |_||_|   \__,_||_|   |_| |_| |_|
+// |
+// Copyright 2015-2023 Łukasz "JustArchi" Domeradzki
+// Contact: JustArchi@JustArchi.net
+// |
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+// |
+// http://www.apache.org/licenses/LICENSE-2.0
+// |
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+using System;
+using System.Collections.Concurrent;
+using ArchiSteamFarm.Core;
+using ArchiSteamFarm.Helpers;
+using JetBrains.Annotations;
+using Newtonsoft.Json;
+using Newtonsoft.Json.Linq;
+
+namespace ArchiSteamFarm.Storage;
+
+public abstract class GenericDatabase : SerializableFile {
+	[JsonProperty(Required = Required.DisallowNull)]
+	private readonly ConcurrentDictionary<string, JToken> KeyValueJsonStorage = new();
+
+	[PublicAPI]
+	public void DeleteFromJsonStorage(string key) {
+		if (string.IsNullOrEmpty(key)) {
+			throw new ArgumentNullException(nameof(key));
+		}
+
+		if (!KeyValueJsonStorage.TryRemove(key, out _)) {
+			return;
+		}
+
+		Utilities.InBackground(Save);
+	}
+
+	[PublicAPI]
+	public JToken? LoadFromJsonStorage(string key) {
+		if (string.IsNullOrEmpty(key)) {
+			throw new ArgumentNullException(nameof(key));
+		}
+
+		return KeyValueJsonStorage.TryGetValue(key, out JToken? value) ? value : null;
+	}
+
+	[PublicAPI]
+	public void SaveToJsonStorage(string key, JToken value) {
+		if (string.IsNullOrEmpty(key)) {
+			throw new ArgumentNullException(nameof(key));
+		}
+
+		ArgumentNullException.ThrowIfNull(value);
+
+		if (value.Type == JTokenType.Null) {
+			DeleteFromJsonStorage(key);
+
+			return;
+		}
+
+		if (KeyValueJsonStorage.TryGetValue(key, out JToken? currentValue) && JToken.DeepEquals(currentValue, value)) {
+			return;
+		}
+
+		KeyValueJsonStorage[key] = value;
+		Utilities.InBackground(Save);
+	}
+
+	[UsedImplicitly]
+	public bool ShouldSerializeKeyValueJsonStorage() => !KeyValueJsonStorage.IsEmpty;
+}