using CounterStrikeSharp.API.Core;
using CounterStrikeSharp.API;
using CounterStrikeSharp.API.Modules.Memory.DynamicFunctions;

namespace Porning;

class SkinsManager
{
    private readonly BasePlugin plugin;
    private static readonly ulong SpawnedWeaponId = 16384; // Randomly chosen
    private static readonly MemoryFunctionVoid<nint, string, float> CAttributeListSetOrAddAttributeValueByName = new("55 48 89 E5 41 57 41 56 49 89 FE 41 55 41 54 53 48 89 F3 48 83 EC ? F3 0F 11 85");

    public SkinsManager(BasePlugin plugin)
    {
        this.plugin = plugin;
        plugin.RegisterListener<Listeners.OnEntitySpawned>((entity) => { OnEntitySpawned(entity); });
        plugin.RegisterListener<Listeners.OnEntityParentChanged>((entity, parent) => { OnEntityParentChanged(entity, parent); });
        plugin.RegisterEventHandler<EventItemPickup>(OnItemEquip);
    }

    public void OnEntitySpawned(CEntityInstance entity)
    {
    }

    public void OnEntityParentChanged(CEntityInstance entity, CEntityInstance parent)
    {

    }

    private HookResult OnItemEquip(EventItemPickup @event, GameEventInfo info)
    {
        var player = @event.Userid;

        if (player == null || !player.IsValid) return HookResult.Continue;

        Server.NextFrame(() =>
        {
            if (!player.IsValid || !player.PlayerPawn.IsValid) return;

            var pawn = player.PlayerPawn.Value;
            if (pawn == null) return;

            var myWeapons = pawn.WeaponServices?.MyWeapons;
            if (myWeapons == null) return;

            // Reproduction de la méthode GiveOnItemPickup du dépôt GitHub
            foreach (var handle in myWeapons)
            {
                var weapon = handle.Value;

                if (weapon == null || !weapon.IsValid) continue;

                if (weapon.DesignerName == "weapon_ak47")
                {
                    ApplyAK47Skin1171(weapon, player);
                }
            }
        });

        return HookResult.Continue;
    }

    public void ApplyAK47Skin1171(CBasePlayerWeapon weapon, CCSPlayerController player)
    {
        if (weapon.AttributeManager.Item.ItemDefinitionIndex != 7) return;

        weapon.AttributeManager.Item.AttributeList.Attributes.RemoveAll();
        weapon.AttributeManager.Item.NetworkedDynamicAttributes.Attributes.RemoveAll();

        weapon.AttributeManager.Item.ItemID = SpawnedWeaponId;
        weapon.AttributeManager.Item.ItemIDLow = (uint)(SpawnedWeaponId & 0xFFFFFFFF);
        weapon.AttributeManager.Item.ItemIDHigh = (uint)(SpawnedWeaponId >> 32);

        weapon.AttributeManager.Item.AccountID = (uint)player.SteamID;

        weapon.FallbackPaintKit = 1171;
        weapon.FallbackSeed = 0;
        weapon.FallbackWear = 0.01f;

        var handle = weapon.AttributeManager.Item.NetworkedDynamicAttributes.Handle;
        CAttributeListSetOrAddAttributeValueByName.Invoke(handle, "set item texture prefab", 1171);
        CAttributeListSetOrAddAttributeValueByName.Invoke(handle, "set item texture seed", 0);
        CAttributeListSetOrAddAttributeValueByName.Invoke(handle, "set item texture wear", 0.01f);

        weapon.AcceptInput("SetBodygroup", value: "body,0");

        Utilities.SetStateChanged(weapon, "CBaseEntity", "m_nFallbackPaintKit");
        Utilities.SetStateChanged(weapon, "CBaseEntity", "m_nFallbackSeed");
        Utilities.SetStateChanged(weapon, "CBaseEntity", "m_flFallbackWear");
    }
}