// 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.Build.Framework;
 
namespace Microsoft.AspNetCore.StaticWebAssets.Tasks;
 
public class ComputeStaticWebAssetsTargetPaths : Task
{
    [Required]
    public ITaskItem[] Assets { get; set; }
 
    public string PathPrefix { get; set; }
 
    public bool UseAlternatePathDirectorySeparator { get; set; }
 
    public bool AdjustPathsForPack { get; set; }
 
    [Output]
    public ITaskItem[] AssetsWithTargetPath { get; set; }
 
    public override bool Execute()
    {
        try
        {
            Log.LogMessage(MessageImportance.Low, "Using path prefix '{0}'", PathPrefix);
            AssetsWithTargetPath = new ITaskItem[Assets.Length];
 
            for (var i = 0; i < Assets.Length; i++)
            {
                var staticWebAsset = StaticWebAsset.FromTaskItem(Assets[i]);
                var result = staticWebAsset.ToTaskItem();
                var targetPath = staticWebAsset.ComputeTargetPath(
                    PathPrefix,
                    UseAlternatePathDirectorySeparator ? Path.AltDirectorySeparatorChar : Path.DirectorySeparatorChar, StaticWebAssetTokenResolver.Instance);
 
                if (AdjustPathsForPack && string.IsNullOrEmpty(Path.GetExtension(targetPath)))
                {
                    targetPath = Path.GetDirectoryName(targetPath);
                }
 
                result.SetMetadata("TargetPath", targetPath);
 
                AssetsWithTargetPath[i] = result;
            }
        }
        catch (Exception ex)
        {
            Log.LogError(ex.Message);
        }
 
        return !Log.HasLoggedErrors;
    }
}