refactor(configuration): Setup configuration and menu to be reuseable

source/Configuration/ConfigurationHandler.ts

@@ -0,0 +1,71 @@
+import {ConfigurationProvider} from "./ConfigurationProvider";
+import {ConfigurationModel} from "../Database/Models/ConfigurationModel";
+// @ts-expect-error set-path is provided
+import setPath from 'object-path-set';
+import deepmerge from "deepmerge";
+// @ts-expect-error Any is fine
+import {isPlainObject} from "is-plain-object";
+import {Nullable} from "../types/Nullable";
+import {ConfigurationTransformer, TransformerResults} from "./ConfigurationTransformer";
+
+export class ConfigurationHandler<
+  TProviderModel extends ConfigurationModel = ConfigurationModel,
+  TRuntimeConfiguration extends object = Record<string, string>,
+> {
+  public readonly transformer: ConfigurationTransformer
+  
+  constructor(
+    private readonly provider: ConfigurationProvider<TProviderModel>
+  ) {
+    this.transformer = provider.getTransformer();
+  }
+  
+  public save(path: string, value: string): void {
+    const configuration = this.provider.get(path);
+    
+    if (configuration) {
+      this.provider.save({
+        ...configuration,
+        value
+      });
+      
+      return;
+    }
+    
+    this.provider.save({
+      key: path,
+      value
+    });
+  }
+
+  public getCompleteConfiguration(): TRuntimeConfiguration {
+    return deepmerge(
+      this.provider.defaults,
+      this.getCompleteDatabaseConfig(),
+      {
+        isMergeableObject: isPlainObject
+      }
+    )
+  }
+  
+  public getConfigurationByPath(path: string): Nullable<TransformerResults> {
+    const configuration = this.provider.get(path);
+    if (!configuration) {
+      return;
+    }
+    
+    return this.transformer.getValue(configuration);
+  }
+  
+  private getCompleteDatabaseConfig(): Partial<TRuntimeConfiguration> {
+    const values = this.provider.getAll();
+    const configuration: Partial<TRuntimeConfiguration> = {};
+
+    values.forEach((configValue) => {
+      const value = this.transformer.getValue(configValue);
+      setPath(configuration, configValue.key, value);
+    })
+
+    return configuration;
+  }
+}