using System;
using JetBrains.Annotations;
using PkmnLibSharp.FFI;
using PkmnLibSharp.Utils;
using Interface = PkmnLibSharp.FFI.StaticData.StatisticSet;

namespace PkmnLibSharp.StaticData
{
    public class StatisticSet<T> : ExternPointer<object> where T : struct, IConvertible
    {
        internal StatisticSet(IdentifiablePointer ptr, bool isOwner) : base(ptr, isOwner)
        {
        }

        public StatisticSet(T hp, T attack, T defense, T specialAttack, T specialDefense, T speed)
        {
            var p = typeof(T) switch
            {
                { } t when t == typeof(byte) => Interface.statistic_set_u8_new(Convert.ToByte(hp),
                    Convert.ToByte(attack), Convert.ToByte(defense), Convert.ToByte(specialAttack),
                    Convert.ToByte(specialDefense), Convert.ToByte(speed)),
                { } t when t == typeof(ushort) => Interface.statistic_set_u16_new(Convert.ToUInt16(hp),
                    Convert.ToUInt16(attack), Convert.ToUInt16(defense), Convert.ToUInt16(specialAttack),
                    Convert.ToUInt16(specialDefense), Convert.ToUInt16(speed)),
                { } t when t == typeof(uint) => Interface.statistic_set_u32_new(Convert.ToUInt32(hp),
                    Convert.ToUInt32(attack), Convert.ToUInt32(defense), Convert.ToUInt32(specialAttack),
                    Convert.ToUInt32(specialDefense), Convert.ToUInt32(speed)),
                { } t when t == typeof(sbyte) => Interface.statistic_set_i8_new(Convert.ToSByte(hp),
                    Convert.ToSByte(attack), Convert.ToSByte(defense), Convert.ToSByte(specialAttack),
                    Convert.ToSByte(specialDefense), Convert.ToSByte(speed)),
                { } t when t == typeof(short) => Interface.statistic_set_i16_new(Convert.ToInt16(hp),
                    Convert.ToInt16(attack), Convert.ToInt16(defense), Convert.ToInt16(specialAttack),
                    Convert.ToInt16(specialDefense), Convert.ToInt16(speed)),
                { } t when t == typeof(int) => Interface.statistic_set_i32_new(Convert.ToInt32(hp),
                    Convert.ToInt32(attack), Convert.ToInt32(defense), Convert.ToInt32(specialAttack),
                    Convert.ToInt32(specialDefense), Convert.ToInt32(speed)),
                _ => throw new ArgumentOutOfRangeException()
            };
            InitializePointer(p, true);
        }

        [PublicAPI]
        public T GetStatistic(Statistic statistic)
        {
            object p = typeof(T) switch
            {
                { } t when t == typeof(byte) => Interface.statistic_set_u8_get_stat(Ptr, statistic),
                { } t when t == typeof(ushort) => Interface.statistic_set_u16_get_stat(Ptr, statistic),
                { } t when t == typeof(uint) => Interface.statistic_set_u32_get_stat(Ptr, statistic),
                { } t when t == typeof(sbyte) => Interface.statistic_set_i8_get_stat(Ptr, statistic),
                { } t when t == typeof(short) => Interface.statistic_set_i16_get_stat(Ptr, statistic),
                { } t when t == typeof(int) => Interface.statistic_set_i32_get_stat(Ptr, statistic),
                _ => throw new ArgumentOutOfRangeException()
            };
            return (T)p;
        }

        [PublicAPI]
        public void SetStatistic(Statistic statistic, T value)
        {
            if (typeof(T) == typeof(byte)) Interface.statistic_set_u8_set_stat(Ptr, statistic, Convert.ToByte(value));
            else if (typeof(T) == typeof(ushort))
                Interface.statistic_set_u16_set_stat(Ptr, statistic, Convert.ToUInt16(value));
            else if (typeof(T) == typeof(uint))
                Interface.statistic_set_u32_set_stat(Ptr, statistic, Convert.ToUInt32(value));
            else if (typeof(T) == typeof(sbyte))
                Interface.statistic_set_i8_set_stat(Ptr, statistic, Convert.ToSByte(value));
            else if (typeof(T) == typeof(short))
                Interface.statistic_set_i16_set_stat(Ptr, statistic, Convert.ToInt16(value));
            else if (typeof(T) == typeof(int))
                Interface.statistic_set_i32_set_stat(Ptr, statistic, Convert.ToInt32(value));
        }

        public T HP
        {
            get => GetStatistic(Statistic.HP);
            set => SetStatistic(Statistic.HP, value);
        }

        public T Attack
        {
            get => GetStatistic(Statistic.Attack);
            set => SetStatistic(Statistic.Attack, value);
        }

        public T Defense
        {
            get => GetStatistic(Statistic.Defense);
            set => SetStatistic(Statistic.Defense, value);
        }

        public T SpecialAttack
        {
            get => GetStatistic(Statistic.SpecialAttack);
            set => SetStatistic(Statistic.SpecialAttack, value);
        }

        public T SpecialDefense
        {
            get => GetStatistic(Statistic.SpecialDefense);
            set => SetStatistic(Statistic.SpecialDefense, value);
        }

        public T Speed
        {
            get => GetStatistic(Statistic.Speed);
            set => SetStatistic(Statistic.Speed, value);
        }


        protected override object CreateCache() => new();

        protected override void Destructor()
        {
            if (typeof(T) == typeof(byte)) Interface.statistic_set_u8_drop(Ptr);
            else if (typeof(T) == typeof(ushort)) Interface.statistic_set_u16_drop(Ptr);
            else if (typeof(T) == typeof(uint)) Interface.statistic_set_u32_drop(Ptr);
            else if (typeof(T) == typeof(sbyte)) Interface.statistic_set_i8_drop(Ptr);
            else if (typeof(T) == typeof(short)) Interface.statistic_set_i16_drop(Ptr);
            else if (typeof(T) == typeof(int)) Interface.statistic_set_i32_drop(Ptr);
        }

        ~StatisticSet()
        {
            Dispose();
        }
    }
}