CatStation/Content.Server/Corvax/GuideGenerator/MetaLicenseGenerator.cs

using System.IO;
using System.Text.Encodings.Web;
using System.Text.Json;

namespace Content.Server.Corvax.GuideGenerator;

public static class MetaLicenseGenerator
{
    private static readonly JsonSerializerOptions SerializeOptions = new()
    {
        WriteIndented = true,
        Encoder = JavaScriptEncoder.UnsafeRelaxedJsonEscaping
    };

    public static void PublishJson(Stream stream)
    {
        var workingDir = Directory.GetCurrentDirectory();
        var resourcesRoot = Path.Combine(workingDir, "Resources");
        if (!Directory.Exists(resourcesRoot))
            return;

        var output = new Dictionary<string, Dictionary<string, string>>();

        foreach (var metaPath in Directory.EnumerateFiles(resourcesRoot, "meta.json", SearchOption.AllDirectories))
        {
            var json = File.ReadAllText(metaPath);
            using var doc = JsonDocument.Parse(json);
            var root = doc.RootElement;

            var license = root.TryGetProperty("license", out var licEl) && licEl.ValueKind == JsonValueKind.String
                ? licEl.GetString() ?? string.Empty
                : string.Empty;

            var copyright = root.TryGetProperty("copyright", out var copyEl) && copyEl.ValueKind == JsonValueKind.String
                ? copyEl.GetString() ?? string.Empty
                : string.Empty;
            var resourceDir = Path.GetDirectoryName(metaPath) ?? metaPath;
            var relativeResourcePath = Path.GetRelativePath(workingDir, resourceDir).Replace('\\', '/');

            output[relativeResourcePath] = new Dictionary<string, string>
                {
                    { "license", license },
                    { "copyright", copyright }
                };
        }

        if (output.Count == 0)
            return;

        JsonSerializer.Serialize(stream, output, SerializeOptions);
    }
}