#!/usr/bin/env node

const execSync = require('child_process').execSync;
const { config } = require('../config.js');
const { parseArgs } = require('node:util');

// Let's parse command line arguments:
// --app-name <name> to override the default app name from config.js
// --help to show usage information
// --env to print in environment variable format

const args = parseArgs({
    options: {
        'app-name': { type: 'string', short: 'a' },
        'help': { type: 'boolean', short: 'h' },
        'env': { type: 'boolean', short: 'e' }
    }
});

// Get the Azure AD application ID by name
const queryResult = execSync(`az ad app list --query "[?displayName=='${config.appName}']"`).toString().trim();
const apps = JSON.parse(queryResult);

if (apps.length === 1) {
    const appId = apps[0].appId;
    if (args.values.env) {
        const tenantId = execSync(`az account show --query "tenantId" -o tsv`).toString().trim();
        console.log(`AZ_APP_NAME="${config.appName}"`);
        console.log(`ARM_CLIENT_ID=${appId}`);
        console.log(`ARM_TENANT_ID=${tenantId}`);
    } else {
        console.log(`Found App ID: ${appId} for App Name: "${config.appName}"`);
    }
} else if (apps.length > 1) {
    console.error(`Multiple apps found with the name: "${config.appName}". Please ensure app names are unique.`);
    process.exit(1);
} else {
    console.error(`No App found with name: "${config.appName}"`);
    process.exit(1);
}