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/**
* @license
* Copyright 2025 Google LLC
* SPDX-License-Identifier: Apache-2.0
*/
import * as fs from 'fs';
import { randomUUID } from 'crypto';
import * as path from 'node:path';
import { Storage } from '../config/storage.js';
export class InstallationManager {
private getInstallationIdPath(): string {
return Storage.getInstallationIdPath();
}
private readInstallationIdFromFile(): string | null {
const installationIdFile = this.getInstallationIdPath();
if (fs.existsSync(installationIdFile)) {
const installationid = fs
.readFileSync(installationIdFile, 'utf-8')
.trim();
return installationid || null;
}
return null;
}
private writeInstallationIdToFile(installationId: string) {
const installationIdFile = this.getInstallationIdPath();
const dir = path.dirname(installationIdFile);
fs.mkdirSync(dir, { recursive: true });
fs.writeFileSync(installationIdFile, installationId, 'utf-8');
}
/**
* Retrieves the installation ID from a file, creating it if it doesn't exist.
* This ID is used for unique user installation tracking.
* @returns A UUID string for the user.
*/
getInstallationId(): string {
try {
let installationId = this.readInstallationIdFromFile();
if (!installationId) {
installationId = randomUUID();
this.writeInstallationIdToFile(installationId);
}
return installationId;
} catch (error) {
console.error(
'Error accessing installation ID file, generating ephemeral ID:',
error,
);
return '123456789';
}
}
}
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