using System.Reflection;
using System.Text;

namespace BangumiRenamer.Utils;

public static class ResourceLoader
{
    public static IEnumerable<string> GetAllResNames()
    {
        var assembly = Assembly.GetExecutingAssembly();
        return assembly.GetManifestResourceNames();
    }

    public static async Task<string> ReadText(string resPath)
    {
        var stream = GetResStream(resPath);
        if (stream.CanSeek)
        {
            stream.Position = 0;
        }

        using var reader = new StreamReader(stream, Encoding.UTF8);
        return await reader.ReadToEndAsync();
    }
    
    public static Stream GetResStream(string resPath)
    {
        var assembly = Assembly.GetExecutingAssembly();
        var resourceName = resPath;
        if (assembly.GetManifestResourceInfo(resPath) == null)
        {
            resourceName = $"{assembly.GetName().Name}.{resourceName.Replace('\\', '.').Replace('/', '.')}";
        }
        var stream = assembly.GetManifestResourceStream(resourceName);
        if (stream == null)
        {
            throw new FileNotFoundException($"资源 {resourceName} 未找到");
        }
        return stream;
    }
}