// Licensed to the .NET Foundation under one or more agreements.
// The .NET Foundation licenses this file to you under the MIT license.
 
using System.Runtime.ExceptionServices;
using Microsoft.Extensions.Logging.Abstractions;
 
namespace Aspire.Hosting.Tests.Utils;
 
public static class EnvironmentVariableEvaluator
{
    public static async ValueTask<Dictionary<string, string>> GetEnvironmentVariablesAsync(
        IResource resource,
        DistributedApplicationOperation applicationOperation = DistributedApplicationOperation.Run,
        IServiceProvider? serviceProvider = null)
    {
        var executionContext = new DistributedApplicationExecutionContext(new DistributedApplicationExecutionContextOptions(applicationOperation)
        {
            ServiceProvider = serviceProvider
        });
 
        var executionConfiguration = await ExecutionConfigurationBuilder.Create(resource)
            .WithEnvironmentVariablesConfig()
            .BuildAsync(executionContext, NullLogger.Instance, CancellationToken.None);
 
        if (executionConfiguration.Exception is not null)
        {
            ExceptionDispatchInfo.Throw(executionConfiguration.Exception);
        }
 
        return executionConfiguration.EnvironmentVariables.ToDictionary();
    }
}