using System.Collections.Generic;

namespace BurnOutSharp.ProtectionType
{
    public class CDCheck : IContentCheck
    {
        /// <inheritdoc/>
        public string CheckContents(string file, byte[] fileContent, bool includePosition = false)
        {
            var mappings = new Dictionary<byte?[], string>
            {
                // MGS CDCheck
                [new byte?[] { 0x4D, 0x47, 0x53, 0x20, 0x43, 0x44, 0x43, 0x68, 0x65, 0x63, 0x6B }] = "Microsoft Game Studios CD Check",

                // CDCheck
                [new byte?[] { 0x43, 0x44, 0x43, 0x68, 0x65, 0x63, 0x6B }] = "Executable-Based CD Check",
            };

            return Utilities.GetContentMatches(fileContent, mappings, includePosition);
        }

        // These content checks are too broad to be useful
        private static string CheckContentsBroad(byte[] fileContent, bool includePosition = false)
        {
            var mappings = new Dictionary<byte?[], string>
            {
                // GetDriveType
                [new byte?[] { 0x47, 0x65, 0x74, 0x44, 0x72, 0x69, 0x76, 0x65, 0x54, 0x79, 0x70, 0x65 }] = "Executable-Based CD Check",

                // GetVolumeInformation
                [new byte?[] { 0x47, 0x65, 0x74, 0x56, 0x6F, 0x6C, 0x75, 0x6D, 0x65, 0x49, 0x6E, 0x66, 0x6F, 0x72, 0x6D, 0x61, 0x74, 0x69, 0x6F, 0x6E }] = "Executable-Based CD Check",
            };

            return Utilities.GetContentMatches(fileContent, mappings, includePosition);
        }
    }
}