using System;
using System.Collections.Generic;
using System.IO;
using System.Linq;

namespace BurnOutSharp.ProtectionType
{
    public class MediaMaxCD3 : IContentCheck, IPathCheck
    {
        /// <inheritdoc/>
        public string CheckContents(string file, byte[] fileContent, bool includePosition = false)
        {
            // Cd3Ctl
            byte?[] check = new byte?[] { 0x43, 0x64, 0x33, 0x43, 0x74, 0x6C };
            if (fileContent.FirstPosition(check, out int position))
                return "MediaMax CD-3" + (includePosition ? $" (Index {position})" : string.Empty);

            // DllInstallSbcp
            check = new byte?[] { 0x44, 0x6C, 0x6C, 0x49, 0x6E, 0x73, 0x74, 0x61, 0x6C, 0x6C, 0x53, 0x62, 0x63, 0x70 };
            if (fileContent.FirstPosition(check, out position))
                return "MediaMax CD-3" + (includePosition ? $" (Index {position})" : string.Empty);

            return null;
        }

        /// <inheritdoc/>
        public string CheckDirectoryPath(string path, IEnumerable<string> files)
        {
            if (files.Any(f => Path.GetFileName(f).Equals("LaunchCd.exe", StringComparison.OrdinalIgnoreCase)))
                return "MediaMax CD-3";
            
            return null;
        }

        /// <inheritdoc/>
        public string CheckFilePath(string path)
        {
            if (Path.GetFileName(path).Equals("LaunchCd.exe", StringComparison.OrdinalIgnoreCase))
                return "MediaMax CD-3";

            return null;
        }
    }
}