using System;
using System.IO;

namespace ResBuilder
{
    class UIResPacker
    {
        public readonly string inputPath;

        public readonly string outputFile;

        public UIResPacker(string input , string output)
        {
            this.inputPath = input;
            this.outputFile = Path.Combine(output , "ur.bin");
        }

        string GetWriteFileName(string fp)
        {
            if (fp.StartsWith(inputPath))
            {
                fp = fp.Substring(fp.IndexOf("res"));
                fp = fp.Replace('\\', '/');
            }
            return fp;
        }

        public void Pack()
        {
            var files = Directory.GetFiles(inputPath, "*.*", SearchOption.AllDirectories);
            files = Array.FindAll<string>(files, (str) => str.EndsWith(".bin") || str.EndsWith(".png") || str.EndsWith(".jpg"));

            using (var fs = new FileStream(outputFile, FileMode.Create))
            {
                var bw = new BinaryWriter(fs);
                bw.Write(files.Length);
                foreach (var f in files)
                {
                    var bytes = File.ReadAllBytes(f);
                    bw.Write(GetWriteFileName(f));
                    bw.Write(bytes.Length);
                    bw.Write(bytes);
                }
            }
        }
    }
}