Hastlayer-SDK

using Lombiq.HelpfulLibraries.Common.Utilities;
using System.Linq;

namespace Hast.Transformer.Vhdl.ArchitectureComponents;

public static class ArchitectureComponentNameExtensions
{
    public static string CreateStartedSignalName(this IArchitectureComponent component) =>
        ArchitectureComponentNameHelper.CreateStartedSignalName(component.Name);

    public static string CreateFinishedSignalName(this IArchitectureComponent component) =>
        ArchitectureComponentNameHelper.CreateFinishedSignalName(component.Name);

    public static string CreatePrefixedSegmentedObjectName(this IArchitectureComponent component, params string[] segments) =>
        ArchitectureComponentNameHelper.CreatePrefixedSegmentedObjectName(component.Name, segments);

    /// <summary>
    /// Creates a VHDL object (i.e. signal or variable) name prefixed with the component's name.
    /// </summary>
    public static string CreatePrefixedObjectName(this IArchitectureComponent component, string name) =>
        ArchitectureComponentNameHelper.CreatePrefixedObjectName(component.Name, name);

    /// <summary>
    /// Determines the name of the next available name for a VHDL object (i.e. signal or variable) whose name is
    /// suffixed with a numerical index.
    /// </summary>
    /// <example>
    /// If we need a variable with the name "number" then this method will create a name like "ComponentName.number.0",
    /// or if that exists, then the next available variation like "ComponentName.number.5".
    /// </example>
    /// <returns>An object name prefixed with the component's name and suffixed with a numerical index.</returns>
    public static string GetNextUnusedIndexedObjectName(this IArchitectureComponent component, string name)
    {
        var objectName = name + ".0";
        var objectNameIndex = 0;

        while (
            component.LocalVariables.Any(variable => variable.Name == component.CreatePrefixedObjectName(objectName)) ||
            component.InternallyDrivenSignals.Any(signal => signal.Name == component.CreatePrefixedObjectName(objectName)))
        {
            objectNameIndex++;
            objectName = StringHelper.CreateInvariant($"{name}.{objectNameIndex}");
        }

        return component.CreatePrefixedObjectName(objectName);
    }
}