using System;
using System.IO;

namespace ResBuilder
{
    class UIResProcessor
    {
        public readonly string inputRoot;

        public readonly string outputRoot;

        public readonly string relativePath;

        public UIResProcessor(string inputRoot , string outputRoot, string relativePath)
        {
            this.inputRoot = inputRoot;
            this.outputRoot = outputRoot;
            this.relativePath = relativePath;
        }

        public void Execute()
        {
            var inputPath = Path.Combine(inputRoot , relativePath);
            var allFiles = Directory.GetFiles(inputPath, "*.*", SearchOption.AllDirectories);

            var binFiles = Array.FindAll<string>(allFiles, (str) => str.EndsWith(".bin"));
            var pngFiles = Array.FindAll<string>(allFiles, (str) => str.EndsWith(".png") || str.EndsWith(".jpg"));
            var xmlFiles = Array.FindAll<string>(allFiles, 
                (str) =>
                {
                    if (!str.EndsWith(".xml"))
                    {
                        return false;
                    }
                    var fileName = Path.ChangeExtension(str , "bin");
                    return Array.IndexOf(binFiles, fileName) == -1;
                });

            var outputDir = Path.Combine(outputRoot, relativePath);
            if (Directory.Exists(outputDir))
            {
                Directory.Delete(outputDir, true);
            }
            // -- 1
            foreach (var f in binFiles)
            {
                var relativeFilePath = f.Substring(inputPath.Length + 1);
                var outputFilePath = Path.Combine(outputDir, relativeFilePath);
                var outDirName = Path.GetDirectoryName(outputFilePath);
                if (!Directory.Exists(outDirName))
                {
                    Directory.CreateDirectory(outDirName);
                }
                File.Copy(f, outputFilePath, true);
            }
            // -- 2
            foreach (var f in pngFiles)
            {
                var relativeFilePath = f.Substring(inputPath.Length + 1);
                var outputFilePath = Path.Combine(outputDir, relativeFilePath);
                var outDirName = Path.GetDirectoryName(outputFilePath);
                if (!Directory.Exists(outDirName))
                {
                    Directory.CreateDirectory(outDirName);
                }
                File.Copy(f, outputFilePath, true);
            }
            foreach (var f in xmlFiles)
            {
                var relativeFilePath = f.Substring(inputPath.Length + 1);
                var outputFilePath = Path.Combine(outputDir, relativeFilePath);
                var outDirName = Path.GetDirectoryName(outputFilePath);
                if (!Directory.Exists(outDirName))
                {
                    Directory.CreateDirectory(outDirName);
                }
                File.Copy(f, outputFilePath , true);
            }
        }
    }
}