39 lines
1.8 KiB
TypeScript
39 lines
1.8 KiB
TypeScript
import { CodeChangedEvent } from './Event/CodeChangedEvent';
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import { CodePosition } from './Position/CodePosition';
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import { ICodeChangedEvent } from './Event/ICodeChangedEvent';
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import { SelectedScript } from '@/application/State/Selection/SelectedScript';
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import { IUserSelection } from '@/application/State/Selection/IUserSelection';
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import { UserScriptGenerator } from './Generation/UserScriptGenerator';
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import { Signal } from '@/infrastructure/Events/Signal';
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import { IApplicationCode } from './IApplicationCode';
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import { IUserScriptGenerator } from './Generation/IUserScriptGenerator';
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export class ApplicationCode implements IApplicationCode {
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public readonly changed = new Signal<ICodeChangedEvent>();
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public current: string;
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private scriptPositions = new Map<SelectedScript, CodePosition>();
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constructor(
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userSelection: IUserSelection,
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private readonly version: string,
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private readonly generator: IUserScriptGenerator = new UserScriptGenerator()) {
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if (!userSelection) { throw new Error('userSelection is null or undefined'); }
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if (!version) { throw new Error('version is null or undefined'); }
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if (!generator) { throw new Error('generator is null or undefined'); }
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this.setCode(userSelection.selectedScripts);
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userSelection.changed.on((scripts) => {
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this.setCode(scripts);
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});
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}
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private setCode(scripts: ReadonlyArray<SelectedScript>): void {
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const oldScripts = Array.from(this.scriptPositions.keys());
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const code = this.generator.buildCode(scripts, this.version);
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this.current = code.code;
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this.scriptPositions = code.scriptPositions;
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const event = new CodeChangedEvent(code.code, oldScripts, code.scriptPositions);
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this.changed.notify(event);
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}
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}
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