// 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.DotNet.Cli.Utils;
using NuGet.Frameworks;
using NuGet.Versioning;

namespace Microsoft.DotNet.Cli.ToolPackage;

/// <summary>
///     Given the following parameter, a list of RestoredCommand of a NuGet package can be uniquely identified
/// </summary>
internal class RestoredCommandIdentifier(
    PackageId packageId,
    NuGetVersion version,
    NuGetFramework targetFramework,
    string runtimeIdentifier,
    ToolCommandName commandName) : IEquatable<RestoredCommandIdentifier>
{
    public PackageId PackageId { get; } = packageId;
    public NuGetVersion Version { get; } = version ?? throw new ArgumentException(nameof(version));
    public NuGetFramework TargetFramework { get; } = targetFramework ?? throw new ArgumentException(nameof(targetFramework));
    public string RuntimeIdentifier { get; } = runtimeIdentifier ?? throw new ArgumentException(nameof(runtimeIdentifier));
    public ToolCommandName CommandName { get; } = commandName;

    public bool Equals(RestoredCommandIdentifier other)
    {
        return other != null &&
               PackageId.Equals(other.PackageId) &&
               EqualityComparer<NuGetVersion>.Default.Equals(Version, other.Version) &&
               EqualityComparer<NuGetFramework>.Default.Equals(TargetFramework, other.TargetFramework) &&
               string.Equals(
                   RuntimeIdentifier,
                   other.RuntimeIdentifier,
                   StringComparison.OrdinalIgnoreCase) &&
               CommandName.Equals(
                   other.CommandName);
    }

    public override bool Equals(object obj)
    {
        return Equals(obj as RestoredCommandIdentifier);
    }

    public override int GetHashCode()
    {
        return HashCode.Combine(PackageId, Version, TargetFramework, CommandName,
            StringComparer.OrdinalIgnoreCase.GetHashCode(RuntimeIdentifier));
    }

    public static bool operator ==(RestoredCommandIdentifier id1, RestoredCommandIdentifier id2)
    {
        return EqualityComparer<RestoredCommandIdentifier>.Default.Equals(id1, id2);
    }

    public static bool operator !=(RestoredCommandIdentifier id1, RestoredCommandIdentifier id2)
    {
        return !(id1 == id2);
    }

    public string DebugToString()
    {
        return
            $"{PackageId}-{Version.ToNormalizedString()}-{TargetFramework.GetShortFolderName()}-{RuntimeIdentifier}-{CommandName}";
    }
}