SceneDefinitionSource.cs

using Newtonsoft.Json;
 
namespace Gondwana.Scenes.GSCN;

public sealed class SceneDefinitionSource
{
    [JsonConstructor]
    private SceneDefinitionSource() { }

    [JsonProperty]
    public SceneDefinitionSourceKind Kind { get; private init; }

    [JsonProperty]
    public string? GscnFilePath { get; private init; }

    [JsonProperty]
    public string? AssetsFilePath { get; private init; }

    [JsonProperty]
    public string? AssetEntryName { get; private init; }

    public static SceneDefinitionSource LooseDefinitionFile(string gscnFilePath)
    {
        if (string.IsNullOrWhiteSpace(gscnFilePath))
            throw new ArgumentException("GSCN file path must be a non-empty string.", nameof(gscnFilePath));
 
        return new SceneDefinitionSource
        {
            Kind = SceneDefinitionSourceKind.LooseDefinitionFile,
            GscnFilePath = gscnFilePath
        };
    }

    public static SceneDefinitionSource PackedDefinitionFile(string assetsFilePath, string assetEntryName)
    {
        if (string.IsNullOrWhiteSpace(assetsFilePath))
            throw new ArgumentException("Assets file path must be a non-empty string.", nameof(assetsFilePath));
 
        if (string.IsNullOrWhiteSpace(assetEntryName))
            throw new ArgumentException("Asset entry name must be a non-empty string.", nameof(assetEntryName));
 
        return new SceneDefinitionSource
        {
            Kind = SceneDefinitionSourceKind.PackedDefinitionFile,
            AssetsFilePath = assetsFilePath,
            AssetEntryName = assetEntryName
        };
    }

    public static SceneDefinitionSource Generated() =>
        new()
        {
            Kind = SceneDefinitionSourceKind.Generated
        };

    public static SceneDefinitionSource None() =>
        new()
        {
            Kind = SceneDefinitionSourceKind.None
        };
}