// Licensed to the .NET Foundation under one or more agreements.
// The .NET Foundation licenses this file to you under the MIT license.

#nullable disable

using Microsoft.Deployment.DotNet.Releases;
using Microsoft.DotNet.Configurer;
using Microsoft.NET.Sdk.WorkloadManifestReader;
using Product = Microsoft.DotNet.Cli.Utils.Product;

namespace Microsoft.DotNet.Cli.Commands.Workload.Install;

internal interface IWorkloadResolverFactory
{
    public class CreationResult
    {
        public string DotnetPath { get; set; }
        public string UserProfileDir { get; set; }
        public ReleaseVersion SdkVersion { get; set; }
        public IWorkloadResolver WorkloadResolver { get; set; }
    }

    CreationResult Create(string globalJsonStartDir = null);

    IWorkloadResolver CreateForWorkloadSet(string dotnetPath, string sdkVersion, string userProfileDir, string workloadSetVersion);
}

internal class WorkloadResolverFactory : IWorkloadResolverFactory
{
    public IWorkloadResolverFactory.CreationResult Create(string globalJsonStartDir = null)
    {
        var result = new IWorkloadResolverFactory.CreationResult();

        result.SdkVersion = new ReleaseVersion(Product.Version);

        result.DotnetPath = Path.GetDirectoryName(Environment.ProcessPath);
        result.UserProfileDir = CliFolderPathCalculator.DotnetUserProfileFolderPath;
        globalJsonStartDir = globalJsonStartDir ?? Environment.CurrentDirectory;

        string globalJsonPath = SdkDirectoryWorkloadManifestProvider.GetGlobalJsonPath(globalJsonStartDir);

        var sdkWorkloadManifestProvider = new SdkDirectoryWorkloadManifestProvider(result.DotnetPath, result.SdkVersion.ToString(), result.UserProfileDir, globalJsonPath);

        result.WorkloadResolver = WorkloadResolver.Create(sdkWorkloadManifestProvider, result.DotnetPath, result.SdkVersion.ToString(), result.UserProfileDir);

        return result;
    }

    public IWorkloadResolver CreateForWorkloadSet(string dotnetPath, string sdkVersion, string userProfileDir, string workloadSetVersion)
    {
        var manifestProvider = SdkDirectoryWorkloadManifestProvider.ForWorkloadSet(dotnetPath, sdkVersion, userProfileDir, workloadSetVersion);
        return WorkloadResolver.Create(manifestProvider, dotnetPath, sdkVersion, userProfileDir);
    }
}