using LibXom.Data;
using LibXom.Streams;
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;

namespace LibW4M.Data.InputMapping
{
    public class InputEventMappingData : SaveDataEntry
    {
        public XomString Message;
        public XomString FEResourceID;
        public byte[] AllowedDuplacates;
        public InputMappingData[] InputMappings;
        public int Group;

        public override string FriendlyName
        {
            get
            {
                if (Message.Value != "")
                    return Message.Value;
                if (FEResourceID.Value != "")
                    return FEResourceID.Value;

                return "";
            }
        }

        public InputEventMappingData(W4SaveFile fileBelongs, XomContainer mainContainer) : base(fileBelongs, mainContainer)
        {
        }

        public override void Load()
        {
            using (XomStreamReader reader = new XomStreamReader(new MemoryStream(this.mainContainer.GetData())))
            {
                reader.Skip(3);

                this.Message = fileBelongs.LookupStringFromId(reader.ReadCompressedInt());
                this.FEResourceID = fileBelongs.LookupStringFromId(reader.ReadCompressedInt());

                this.AllowedDuplacates = reader.ReadByteArray();

                int[] inputMappingIds = reader.ReadCompressedIntArray();
                InputMappings = new InputMappingData[inputMappingIds.Length];

                for(int i = 0; i < inputMappingIds.Length; i++)
                {
                    InputMappings[i] = new InputMappingData(this.fileBelongs, this.fileBelongs.LookupContainerById(inputMappingIds[i]));
                }

                this.Group = reader.ReadCompressedInt();
            }
        }

        public override void Save()
        {
            using (MemoryStream ms = new MemoryStream())
            {
                using (XomStreamWriter writer = new XomStreamWriter(ms))
                {
                    writer.Skip(3);

                    writer.WriteCompressedInt(this.Message.Id);
                    writer.WriteCompressedInt(this.FEResourceID.Id);

                    writer.WriteByteArray(this.AllowedDuplacates);

                    int[] inputMappingIds = new int[this.InputMappings.Length];

                    for (int i = 0; i < inputMappingIds.Length; i++)
                    {
                        this.InputMappings[i].Save();
                        inputMappingIds[i] = this.InputMappings[i].containerId;
                    }
                    writer.WriteCompressedIntArray(inputMappingIds);

                    writer.WriteCompressedInt(this.Group);

                    ms.Seek(0x00, SeekOrigin.Begin);
                    mainContainer.SetData(ms.ToArray());
                }
            }
        }
    }
}