// AbortController polyfill for Node.js versions < 16
export async function setupAbortControllerPolyfill() {
const nodeVersion = process.versions.node;
const majorVersion = parseInt(nodeVersion.split('.')[0], 10);
// Show version info
console.error(`Running on Node.js version: ${nodeVersion}`);
// Add AbortController polyfill for Node.js versions < 16
if (majorVersion < 16) {
// Check if AbortController is already defined globally
if (typeof global.AbortController === 'undefined') {
console.error('Adding AbortController polyfill for Node.js < 16');
try {
// Try to dynamically import a polyfill
// First attempt to use node-abort-controller if it's installed
try {
const { AbortController: AbortControllerPolyfill } = await import('node-abort-controller');
global.AbortController = AbortControllerPolyfill;
} catch (importError) {
// Create a basic implementation if the import fails
console.error('Using basic AbortController polyfill');
class AbortSignal {
constructor() {
this.aborted = false;
this.onabort = null;
this._eventListeners = {};
}
addEventListener(type, listener) {
if (!this._eventListeners[type]) {
this._eventListeners[type] = [];
}
this._eventListeners[type].push(listener);
}
removeEventListener(type, listener) {
if (!this._eventListeners[type]) return;
this._eventListeners[type] = this._eventListeners[type].filter(l => l !== listener);
}
dispatchEvent(event) {
if (event.type === 'abort' && this.onabort) {
this.onabort(event);
}
if (this._eventListeners[event.type]) {
this._eventListeners[event.type].forEach(listener => listener(event));
}
}
}
global.AbortController = class AbortController {
constructor() {
this.signal = new AbortSignal();
}
abort() {
if (this.signal.aborted) return;
this.signal.aborted = true;
const event = { type: 'abort' };
this.signal.dispatchEvent(event);
}
};
}
} catch (error) {
console.error('Failed to add AbortController polyfill:', error);
console.error('This package requires Node.js >= 16. Please upgrade your Node.js version.');
process.exit(1);
}
}
}
}
