using System;
using System.Collections.Generic;
using LibAC.NBT.API;

namespace LibAC.NBT
{
    public class LongArrayTag : Tag
    {
        public List<long> value { get; private set; } = new List<long>();

        public LongArrayTag() { }

        public LongArrayTag(List<long> lst)
        {
            value.AddRange(lst);
        }

        public static LongArrayTag ValueOf(List<long> value)
        {
            return new LongArrayTag(value);
        }

        public override void ReadValue(ByteLayer data)
        {
            int count = data.ReadInt();
            for (int i = 0; i < count; i++)
            {
                value.Add(data.ReadLong());
            }
        }

        public override void WriteValue(ByteLayer data)
        {
            data.WriteInt(Size());
            foreach (long val in value)
            {
                data.WriteLong(val);
            }
        }

        public int Size()
        {
            return value.Count;
        }

        public override TagType GetTagType()
        {
            return TagType.LongArray;
        }

        public override void SetValue(dynamic val) { }

        public override dynamic GetValue()
        {
            return null;
        }

        public override void PrettyPrint(int indent, bool recurse)
        {
            string array = string.Join(", ", value);
            Console.WriteLine($"{new string('\t', indent)}{Tag.GetCanonicalName(GetTagType())}: [{array}]");
        }

        public override void WriteStringifiedValue(StringBuilder builder, int indent, bool isList)
        {
            builder.Append($"{(isList ? new string('\t', indent) : "")}[L; {string.Join("L, ", value)}L]");
        }

        public override void ReadStringifiedValue(StringReader reader)
        {
            reader.Expect('[');
            reader.Expect('L');
            reader.Expect(';');
            while (reader.Peek() != ']')
            {
                value.Add(long.Parse(reader.ReadNumber()));
                reader.Expect('l');

                if (reader.Peek() == ',') reader.Next();
            }
            reader.Expect(']');
        }
    }
}