Class MockedResourceManager

GDJS/tests/tests/Extensions/MockedResourceLoader.js:10–110

 * @implements {gdjs.ResourceManager}
 */
gdjs.MockedResourceManager = class MockedResourceManager {
  loadResourcePromises = new Map();
  loadResourceCallbacks = new Map();
  disposedResources = new Set();
  loadedResources = new Set();
  waitingForProcessing = new Set();
  readyResources = new Set();

  loadResource(resourceName) {
    if (
      this.loadedResources.has(resourceName) ||
      this.waitingForProcessing.has(resourceName)
    ) {
      return Promise.resolve();
    }

    const existingPromise = this.loadResourcePromises.get(resourceName);
    if (existingPromise) {
      return existingPromise;
    }

    const promise = new Promise((resolve) => {
      this.loadResourceCallbacks.set(resourceName, resolve);
    });
    this.loadResourcePromises.set(resourceName, promise);
    return promise;
  }

  async processResource(resourceName) {
    // Mark resource as fully processed
    this.readyResources.add(resourceName);
  }

  /**
   * @param {string} resourceName
   * @returns {boolean}
   */
  isResourceDownloadPending(resourceName) {
    return this.loadResourceCallbacks.has(resourceName);
  }

  /**
   * @param {string} resourceName
   */
  markPendingResourcesAsLoaded(resourceName) {
    const loadResourceCallback = this.loadResourceCallbacks.get(resourceName);
    if (loadResourceCallback) {
      this.loadedResources.add(resourceName);
      loadResourceCallback();
      this.loadResourceCallbacks.delete(resourceName);
      this.loadResourcePromises.delete(resourceName);
    } else {
      throw new Error(
        `Resource ${resourceName} was not being loaded, so cannot be marked as loaded.`
      );
    }
  }