Initial commit

src/application/State/Code/ApplicationCode.ts

@@ -0,0 +1,27 @@
+import { CodeBuilder } from './CodeBuilder';
+import { IUserSelection } from './../Selection/IUserSelection';
+import { Signal } from '@/infrastructure/Events/Signal';
+import { IApplicationCode } from './IApplicationCode';
+import { IScript } from '@/domain/IScript';
+
+export class ApplicationCode implements IApplicationCode {
+    public readonly changed = new Signal<string>();
+    public current: string;
+
+    private readonly codeBuilder: CodeBuilder;
+
+    constructor(userSelection: IUserSelection, private readonly version: string) {
+        if (!userSelection) { throw new Error('userSelection is null or undefined'); }
+        if (!version) { throw new Error('version is null or undefined'); }
+        this.codeBuilder = new CodeBuilder();
+        this.setCode(userSelection.selectedScripts);
+        userSelection.changed.on((scripts) => {
+            this.setCode(scripts);
+        });
+    }
+
+    private setCode(scripts: ReadonlyArray<IScript>) {
+        this.current = this.codeBuilder.buildCode(scripts, this.version);
+        this.changed.notify(this.current);
+    }
+}