// SPDX-License-Identifier: MIT

/**
 * A DevOps helpers module.
 */

import { loginInteractive } from "../azure/index.js";
import * as azdev from "azure-devops-node-api";

const AZURE_DEVOPS_SCOPES = ["https://app.vssps.visualstudio.com/.default"];

/**
 * Get Azure DevOps API token.
 *
 * @param { string } tenantId - The Azure AD tenant ID
 * @param { string } clientId - The Azure AD client ID
 * @returns { Promise<string> } Azure DevOps API access token
 */

export async function getDevOpsApiToken(tenantId, clientId) {
    const result = await loginInteractive({
        tenantId,
        clientId,
        scopes: AZURE_DEVOPS_SCOPES,
    });

    const accessToken = result?.accessToken;

    if(!accessToken) {
        throw new Error("Failed to obtain Azure DevOps API token");
    }

    return accessToken;
}

/**
 * Get Azure DevOps clients - Core and Git.
 *
 * @param { string } orgUrl - The Azure DevOps organization URL
 * @param { string } tenantId - The Azure AD tenant ID
 * @param { string } clientId - The Azure AD client ID
 * @returns { Promise<{ coreClient: Object, gitClient: Object }> }
 */

export async function getDevOpsClients(orgUrl, tenantId, clientId) {
    const accessToken = await getDevOpsApiToken(tenantId, clientId);

    const authHandler = azdev.getBearerHandler(accessToken);
    const connection = new azdev.WebApi(orgUrl, authHandler);

    const coreClient = await connection.getCoreApi();
    const gitClient = await connection.getGitApi();

    return { coreClient, gitClient };
}