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

namespace Microsoft.DotNet.HotReload.Utils.Generator.Plan;

/// A plan is just a collection of changes
/// where each change is some identification of the base document and
/// some representation of the update.
///
/// For live coding, the collection will be an IAsyncEnumerable<Change<TDoc,TUpdate>>,
/// for a scripted plan it will be some parsed immutable list of changes.
///
/// Initially the changes are just Change<string,string>, but then DocResolve will
/// change it to a Chamge<DocumentId, string>.
public readonly record struct Change<TDoc, TUpdate>(TDoc Document, TUpdate Update);

public static class Change {
    public static Change<TDoc, TUpdate> Create<TDoc, TUpdate>(TDoc doc, TUpdate update) {
        return new Change<TDoc, TUpdate>(doc, update);
    }
}