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/**
* @license
* Copyright 2025 Google LLC
* SPDX-License-Identifier: Apache-2.0
*/
import {
ClientMetadata,
GeminiUserTier,
LoadCodeAssistResponse,
OnboardUserRequest,
UserTierId,
} from './types.js';
import { CodeAssistServer } from './server.js';
import { OAuth2Client } from 'google-auth-library';
export class ProjectIdRequiredError extends Error {
constructor() {
super(
'This account requires setting the GOOGLE_CLOUD_PROJECT env var. See https://goo.gle/gemini-cli-auth-docs#workspace-gca',
);
}
}
export interface UserData {
projectId: string;
userTier: UserTierId;
}
/**
*
* @param projectId the user's project id, if any
* @returns the user's actual project id
*/
export async function setupUser(client: OAuth2Client): Promise<UserData> {
const projectId = process.env['GOOGLE_CLOUD_PROJECT'] || undefined;
const caServer = new CodeAssistServer(client, projectId, {}, '', undefined);
const coreClientMetadata: ClientMetadata = {
ideType: 'IDE_UNSPECIFIED',
platform: 'PLATFORM_UNSPECIFIED',
pluginType: 'GEMINI',
};
const loadRes = await caServer.loadCodeAssist({
cloudaicompanionProject: projectId,
metadata: {
...coreClientMetadata,
duetProject: projectId,
},
});
if (loadRes.currentTier) {
if (!loadRes.cloudaicompanionProject) {
if (projectId) {
return {
projectId,
userTier: loadRes.currentTier.id,
};
}
throw new ProjectIdRequiredError();
}
return {
projectId: loadRes.cloudaicompanionProject,
userTier: loadRes.currentTier.id,
};
}
const tier = getOnboardTier(loadRes);
let onboardReq: OnboardUserRequest;
if (tier.id === UserTierId.FREE) {
// The free tier uses a managed google cloud project. Setting a project in the `onboardUser` request causes a `Precondition Failed` error.
onboardReq = {
tierId: tier.id,
cloudaicompanionProject: undefined,
metadata: coreClientMetadata,
};
} else {
onboardReq = {
tierId: tier.id,
cloudaicompanionProject: projectId,
metadata: {
...coreClientMetadata,
duetProject: projectId,
},
};
}
// Poll onboardUser until long running operation is complete.
let lroRes = await caServer.onboardUser(onboardReq);
while (!lroRes.done) {
await new Promise((f) => setTimeout(f, 5000));
lroRes = await caServer.onboardUser(onboardReq);
}
if (!lroRes.response?.cloudaicompanionProject?.id) {
if (projectId) {
return {
projectId,
userTier: tier.id,
};
}
throw new ProjectIdRequiredError();
}
return {
projectId: lroRes.response.cloudaicompanionProject.id,
userTier: tier.id,
};
}
function getOnboardTier(res: LoadCodeAssistResponse): GeminiUserTier {
for (const tier of res.allowedTiers || []) {
if (tier.isDefault) {
return tier;
}
}
return {
name: '',
description: '',
id: UserTierId.LEGACY,
userDefinedCloudaicompanionProject: true,
};
}
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