HumanReadableAliasEventEmitter.cs

// =============================================================================
// GPAL - Generally Positive Automation Library
// Copyright © 2026 Software Decisions, Inc. All rights reserved.
//
// This file is part of GPAL.
// Licensed under the Business Source License 1.1
//
// Primary development, architecture, and vision by Michael B. Vederman,
// CEO of Software Decisions, Inc., Texas.
//
// Internal development maintained privately.
// Public releases appear on GitHub: https://github.com/SoftwareDecisionsInc/GPAL.
//
// See LICENSE for full terms, including Additional Use Grant.
// =============================================================================
 
using System.Collections.Generic;
using YamlDotNet.Core;
using YamlDotNet.Core.Events;
using YamlDotNet.Serialization;
using YamlDotNet.Serialization.EventEmitters;
 
public class HumanReadableAliasEventEmitter : ChainedEventEmitter
{
    private readonly Dictionary<string, string> _anchorRenames = new Dictionary<string, string>();
    private readonly Dictionary<string, int> _typeCounters = new Dictionary<string, int>();
 
    public HumanReadableAliasEventEmitter(IEventEmitter nextEmitter) : base(nextEmitter) { }
 
    public override void Emit(MappingStartEventInfo eventInfo, IEmitter emitter)
    {
        if (!eventInfo.Anchor.IsEmpty)
            eventInfo.Anchor = new AnchorName(Rename(eventInfo.Anchor.Value, eventInfo.Source.Type?.Name));
        base.Emit(eventInfo, emitter);
    }
 
    public override void Emit(SequenceStartEventInfo eventInfo, IEmitter emitter)
    {
        if (!eventInfo.Anchor.IsEmpty)
            eventInfo.Anchor = new AnchorName(Rename(eventInfo.Anchor.Value, eventInfo.Source.Type?.Name));
        base.Emit(eventInfo, emitter);
    }
 
    public override void Emit(AliasEventInfo eventInfo, IEmitter emitter)
    {
        if (_anchorRenames.TryGetValue(eventInfo.Alias.Value, out var readable))
            emitter.Emit(new AnchorAlias(new AnchorName(readable)));
        else
            base.Emit(eventInfo, emitter);
    }
 
    private string Rename(string original, string typeName)
    {
        var clean = CleanTypeName(typeName);
        _typeCounters.TryGetValue(clean, out int count);
        _typeCounters[clean] = count + 1;
        var readable = count == 0 ? clean : $"{clean}_{count + 1}";
        _anchorRenames[original] = readable;
        return readable;
    }
 
    private static string CleanTypeName(string name)
    {
        if (name == null) return "object";
        var backtick = name.IndexOf('`');
        return backtick >= 0 ? name.Substring(0, backtick) : name;
    }
}