Xiaohan-Tian
235 lines
9.2 KiB
TypeScript
235 lines
9.2 KiB
TypeScript
import { KGCommand } from '../KGCommand';
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import { KGCore } from '../../KGCore';
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import { KGProject, type KeySignature } from '../../KGProject';
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import type { TimeSignature } from '../../../types/projectTypes';
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import { normalizeTempoRegionsForProject } from '../../../util/globalTrackUtil';
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/**
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* Interface defining properties that can be updated on a project
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*/
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export interface ProjectUpdateProperties {
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name?: string;
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maxBars?: number;
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currentBars?: number;
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bpm?: number;
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timeSignature?: TimeSignature;
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keySignature?: KeySignature;
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selectedMode?: string;
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}
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/**
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* Command to update project properties
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* Handles updating project name, BPM, time signature, etc. with undo support
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*/
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export class ChangeProjectPropertyCommand extends KGCommand {
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private newProperties: ProjectUpdateProperties;
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private originalProperties: ProjectUpdateProperties = {};
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private targetProject: KGProject | null = null;
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private changedProperties: Set<keyof ProjectUpdateProperties> = new Set();
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constructor(properties: ProjectUpdateProperties) {
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super();
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this.newProperties = properties;
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}
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execute(): void {
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const core = KGCore.instance();
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this.targetProject = core.getCurrentProject();
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// Store original properties for undo
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this.originalProperties = {
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name: this.targetProject.getName(),
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maxBars: this.targetProject.getMaxBars(),
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currentBars: this.targetProject.getCurrentBars(),
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bpm: this.targetProject.getBpm(),
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timeSignature: { ...this.targetProject.getTimeSignature() }, // Create a copy
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keySignature: this.targetProject.getKeySignature(),
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selectedMode: this.targetProject.getSelectedMode(),
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};
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// Apply updates and track what actually changes
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const updatedProperties: string[] = [];
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// Update name
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if (this.newProperties.name !== undefined && this.newProperties.name !== this.originalProperties.name) {
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this.targetProject.setName(this.newProperties.name);
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this.changedProperties.add('name');
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updatedProperties.push(`name: "${this.originalProperties.name}" → "${this.newProperties.name}"`);
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}
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// Update maxBars
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if (this.newProperties.maxBars !== undefined && this.newProperties.maxBars !== this.originalProperties.maxBars) {
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this.targetProject.setMaxBars(this.newProperties.maxBars);
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normalizeTempoRegionsForProject(this.targetProject);
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this.changedProperties.add('maxBars');
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updatedProperties.push(`maxBars: ${this.originalProperties.maxBars} → ${this.newProperties.maxBars}`);
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}
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// Update currentBars
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if (this.newProperties.currentBars !== undefined && this.newProperties.currentBars !== this.originalProperties.currentBars) {
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this.targetProject.setCurrentBars(this.newProperties.currentBars);
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this.changedProperties.add('currentBars');
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updatedProperties.push(`currentBars: ${this.originalProperties.currentBars} → ${this.newProperties.currentBars}`);
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}
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// Update BPM
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if (this.newProperties.bpm !== undefined && this.newProperties.bpm !== this.originalProperties.bpm) {
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this.targetProject.setBpm(this.newProperties.bpm);
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this.changedProperties.add('bpm');
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updatedProperties.push(`bpm: ${this.originalProperties.bpm} → ${this.newProperties.bpm}`);
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}
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// Update time signature
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if (this.newProperties.timeSignature !== undefined) {
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const originalTS = this.originalProperties.timeSignature!;
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const newTS = this.newProperties.timeSignature;
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// Compare time signatures
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if (originalTS.numerator !== newTS.numerator || originalTS.denominator !== newTS.denominator) {
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this.targetProject.setTimeSignature(newTS);
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normalizeTempoRegionsForProject(this.targetProject);
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this.changedProperties.add('timeSignature');
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updatedProperties.push(`timeSignature: ${originalTS.numerator}/${originalTS.denominator} → ${newTS.numerator}/${newTS.denominator}`);
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}
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}
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// Update key signature
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if (this.newProperties.keySignature !== undefined && this.newProperties.keySignature !== this.originalProperties.keySignature) {
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this.targetProject.setKeySignature(this.newProperties.keySignature);
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this.changedProperties.add('keySignature');
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updatedProperties.push(`keySignature: "${this.originalProperties.keySignature}" → "${this.newProperties.keySignature}"`);
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}
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// Update selected mode
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if (this.newProperties.selectedMode !== undefined && this.newProperties.selectedMode !== this.originalProperties.selectedMode) {
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this.targetProject.setSelectedMode(this.newProperties.selectedMode);
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this.changedProperties.add('selectedMode');
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updatedProperties.push(`selectedMode: "${this.originalProperties.selectedMode}" → "${this.newProperties.selectedMode}"`);
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}
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if (updatedProperties.length > 0) {
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console.log(`Updated project: ${updatedProperties.join(', ')}`);
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} else {
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console.log('No changes applied to project');
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}
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}
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undo(): void {
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if (!this.targetProject) {
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throw new Error('Cannot undo: no project was updated');
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}
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// Only restore properties that were actually changed
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const restoredProperties: string[] = [];
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// Restore name (only if it was changed)
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if (this.changedProperties.has('name') && this.originalProperties.name !== undefined) {
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this.targetProject.setName(this.originalProperties.name);
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restoredProperties.push(`name: "${this.originalProperties.name}"`);
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}
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// Restore maxBars (only if it was changed)
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if (this.changedProperties.has('maxBars') && this.originalProperties.maxBars !== undefined) {
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this.targetProject.setMaxBars(this.originalProperties.maxBars);
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normalizeTempoRegionsForProject(this.targetProject);
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restoredProperties.push(`maxBars: ${this.originalProperties.maxBars}`);
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}
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// Restore currentBars (only if it was changed)
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if (this.changedProperties.has('currentBars') && this.originalProperties.currentBars !== undefined) {
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this.targetProject.setCurrentBars(this.originalProperties.currentBars);
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restoredProperties.push(`currentBars: ${this.originalProperties.currentBars}`);
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}
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// Restore BPM (only if it was changed)
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if (this.changedProperties.has('bpm') && this.originalProperties.bpm !== undefined) {
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this.targetProject.setBpm(this.originalProperties.bpm);
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restoredProperties.push(`bpm: ${this.originalProperties.bpm}`);
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}
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// Restore time signature (only if it was changed)
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if (this.changedProperties.has('timeSignature') && this.originalProperties.timeSignature !== undefined) {
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this.targetProject.setTimeSignature(this.originalProperties.timeSignature);
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normalizeTempoRegionsForProject(this.targetProject);
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const ts = this.originalProperties.timeSignature;
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restoredProperties.push(`timeSignature: ${ts.numerator}/${ts.denominator}`);
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}
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// Restore key signature (only if it was changed)
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if (this.changedProperties.has('keySignature') && this.originalProperties.keySignature !== undefined) {
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this.targetProject.setKeySignature(this.originalProperties.keySignature);
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restoredProperties.push(`keySignature: "${this.originalProperties.keySignature}"`);
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}
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// Restore selected mode (only if it was changed)
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if (this.changedProperties.has('selectedMode') && this.originalProperties.selectedMode !== undefined) {
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this.targetProject.setSelectedMode(this.originalProperties.selectedMode);
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restoredProperties.push(`selectedMode: "${this.originalProperties.selectedMode}"`);
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}
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console.log(`Restored project: ${restoredProperties.join(', ')}`);
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}
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getDescription(): string {
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const updatedProps: string[] = [];
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if (this.newProperties.name !== undefined) {
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updatedProps.push('name');
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}
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if (this.newProperties.maxBars !== undefined) {
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updatedProps.push('maxBars');
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}
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if (this.newProperties.currentBars !== undefined) {
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updatedProps.push('currentBars');
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}
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if (this.newProperties.bpm !== undefined) {
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updatedProps.push('BPM');
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}
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if (this.newProperties.timeSignature !== undefined) {
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updatedProps.push('time signature');
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}
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if (this.newProperties.keySignature !== undefined) {
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updatedProps.push('key signature');
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}
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if (this.newProperties.selectedMode !== undefined) {
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updatedProps.push('selected mode');
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}
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if (updatedProps.length === 1) {
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return `Change project ${updatedProps[0]}`;
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} else if (updatedProps.length > 1) {
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return `Change project properties (${updatedProps.join(', ')})`;
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}
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return `Change project properties`;
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}
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/**
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* Get the new properties being applied
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*/
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public getNewProperties(): ProjectUpdateProperties {
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return this.newProperties;
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}
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/**
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* Get the original properties (only available after execute)
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*/
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public getOriginalProperties(): ProjectUpdateProperties {
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return this.originalProperties;
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}
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/**
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* Get the target project instance (only available after execute)
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*/
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public getTargetProject(): KGProject | null {
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return this.targetProject;
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}
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/**
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* Get the properties that were actually changed (only available after execute)
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*/
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public getChangedProperties(): Set<keyof ProjectUpdateProperties> {
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return new Set(this.changedProperties);
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}
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}
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