test/Assets/PerfectWorld/Scripts/UI/Dialogs/DlgInstall.cs

using BrewMonster.Network;
using BrewMonster.Scripts.Managers;
using BrewMonster.Scripts.Task;
using BrewMonster.UI;
using CSNetwork;
using ModelRenderer.Scripts.Common;
using PerfectWorld.Scripts.Managers;
using PerfectWorld.Scripts.Task;
using System;
using System.Collections.Generic;
using System.Text;
using TMPro;
using UnityEngine;
using UnityEngine.EventSystems;
using UnityEngine.UI;

namespace BrewMonster
{
    public class DlgInstall : AUIDialog
    {
        [Header("Slot First")]
        [SerializeField] private Transform m_SlotFirstParent;
        [SerializeField] private TextMeshProUGUI m_TxtFirstName;

        [Header("Slot Second")]
        [SerializeField] private Transform m_SlotSecondlParent;
        [SerializeField] private TextMeshProUGUI m_TxtSecondName;

        [Header("Buttons and Money")]
        [SerializeField] private TextMeshProUGUI m_TxtMoney;
        [SerializeField] private Button m_BtnInstall;
        [SerializeField] private Button m_BtnCancel;

        [SerializeField] private Sprite khung_item;

        private EC_IvtrItem m_SelectedEquip;
        private EC_IvtrItem m_SelectedMaterial;

        private int m_FirstInvSlot = -1;
        private int m_SecondInvSlot = -1;

        public override void Awake()
        {
            base.Awake();
            RegisterDrop(m_SlotFirstParent, OnDropEquip);
            RegisterDrop(m_SlotSecondlParent, OnDropMaterial);
            RegisterClick(m_SlotFirstParent, OnClickEquipSlot);
            RegisterClick(m_SlotSecondlParent, OnClickMaterialSlot);
        }

        public void OnpenInstall(uint npcId)
        {
            
        }

        public void CloseInstall()
        {
            gameObject.SetActive(false);
            RestoreInventoryColors();
        }

        private void RestoreInventoryColors()
        {
            var canvas = FindFirstObjectByType<Canvas>();
            if (canvas == null)
                return;

            if (m_FirstInvSlot >= 0)
            {
                var btn = FindInventoryButtonBySlot(m_FirstInvSlot);
                SetInventorySlotGray(btn, false);
                m_FirstInvSlot = -1;
            }

            if (m_SecondInvSlot >= 0)
            {
                var btn = FindInventoryButtonBySlot(m_SecondInvSlot);
                SetInventorySlotGray(btn, false);
                m_SecondInvSlot = -1;
            }
        }

        private Button FindInventoryButtonBySlot(int slot)
        {
            var inventoryUI = FindFirstObjectByType<EC_InventoryUI>();
            if (inventoryUI == null)
                return null;

            var field = typeof(EC_InventoryUI)
                .GetField("inventoryPackButtons", System.Reflection.BindingFlags.NonPublic | System.Reflection.BindingFlags.Instance);

            if (field == null)
                return null;

            var list = field.GetValue(inventoryUI) as List<Button>;
            if (list == null || slot < 0 || slot >= list.Count)
                return null;

            return list[slot];
        }



        private void RegisterDrop(Transform target, Action<PointerEventData> callback)
        {
            var trigger = target.GetComponent<EventTrigger>();
            if (trigger == null)
                trigger = target.gameObject.AddComponent<EventTrigger>();

            trigger.triggers.Clear();

            var entry = new EventTrigger.Entry
            {
                eventID = EventTriggerType.Drop
            };
            entry.callback.AddListener((data) =>
            {
                callback((PointerEventData)data);
            });

            trigger.triggers.Add(entry);
        }

        private void RegisterClick(Transform target, Action<PointerEventData> callback)
        {
            var trigger = target.GetComponent<EventTrigger>();
            if (trigger == null)
                trigger = target.gameObject.AddComponent<EventTrigger>();

            var entry = new EventTrigger.Entry
            {
                eventID = EventTriggerType.PointerClick
            };
            entry.callback.AddListener((data) =>
            {
                callback((PointerEventData)data);
            });

            trigger.triggers.Add(entry);
        }

        private void OnClickEquipSlot(PointerEventData eventData)
        {
            if (m_SelectedEquip != null)
            {
                ReturnItemToInventory(m_FirstInvSlot);
                ClearEquipSlot();
            }
        }

        private void OnClickMaterialSlot(PointerEventData eventData)
        {
            if (m_SelectedMaterial != null)
            {
                ReturnItemToInventory(m_SecondInvSlot);
                ClearMaterialSlot();
            }
        }


        private EC_IvtrItem GetItemFromDrag(PointerEventData eventData)
        {
            if (eventData.pointerDrag == null)
                return null;

            var btn = eventData.pointerDrag.GetComponent<Button>();
            if (btn == null)
                return null;

            // Slot index
            int slotIndex = btn.transform.GetSiblingIndex();

            // Inventory package = 0
            var host = CECGameRun.Instance?.GetHostPlayer();
            if (host == null)
                return null;

            var inv = host.GetInventory(0);
            if (inv == null)
                return null;

            return inv.GetItem(slotIndex, false);
        }

        private void OnDropEquip(PointerEventData eventData)
        {
            if (eventData.pointerDrag == null)
                return;

            var btn = eventData.pointerDrag.GetComponent<Button>();
            if (btn == null)
                return;

            int slotIndex = btn.transform.GetSiblingIndex();

            var item = GetItemFromDrag(eventData);
            if (item == null)
                return;

            EC_IvtrItem detailedItem = EC_IvtrItem.CreateItem(item.m_tid, item.m_expire_date, item.m_iCount);
            if (item.Content != null && item.Content.Length > 0)
                detailedItem.SetItemInfo(item.Content, item.Content.Length);
            else
                detailedItem.GetDetailDataFromLocal();

            m_SelectedEquip = detailedItem;
            m_FirstInvSlot = slotIndex;

            m_TxtFirstName.text = detailedItem.GetName();
            SetSlotIcon(m_SlotFirstParent, detailedItem);

            SetInventorySlotGray(btn, true);

            Debug.Log($"[Install] Equipment: {detailedItem.m_tid} from slot {slotIndex}");
        }


        private void OnDropMaterial(PointerEventData eventData)
        {
            if (eventData.pointerDrag == null)
                return;

            var btn = eventData.pointerDrag.GetComponent<Button>();
            if (btn == null)
                return;

            int slotIndex = btn.transform.GetSiblingIndex();

            var item = GetItemFromDrag(eventData);
            if (item == null)
                return;

            EC_IvtrItem detailedItem = EC_IvtrItem.CreateItem(item.m_tid, item.m_expire_date, item.m_iCount);
            if (item.Content != null && item.Content.Length > 0)
                detailedItem.SetItemInfo(item.Content, item.Content.Length);
            else
                detailedItem.GetDetailDataFromLocal();

            m_SelectedMaterial = detailedItem;
            m_SecondInvSlot = slotIndex;

            m_TxtSecondName.text = detailedItem.GetName();
            SetSlotIcon(m_SlotSecondlParent, detailedItem);

            SetInventorySlotGray(btn, true);

            Debug.Log($"[Install] Material: {detailedItem.m_tid} from slot {slotIndex}");
        }

        private void SetInventorySlotGray(Button btn, bool gray)
        {
            if (btn == null)
                return;

            var img = btn.GetComponent<Image>();
            if (img == null)
                return;

            img.color = gray
                ? new Color(0.3f, 0.3f, 0.3f, 1f)
                : Color.white;
        }


        private void SetSlotIcon(Transform slot, EC_IvtrItem item)
        {
            if (slot == null || item == null)
                return;

            var img = slot.GetComponentInChildren<Image>(true);
            if (img == null)
                return;

            img.sprite = EC_IvtrItemUtils.Instance.ResolveItemIconSprite(item.m_tid);
            img.enabled = img.sprite != null;

            img.color = Color.white;
            img.SetNativeSize();
        }

        private void ReturnItemToInventory(int slotIndex)
        {
            if (slotIndex < 0)
                return;

            var btn = FindInventoryButtonBySlot(slotIndex);
            SetInventorySlotGray(btn, false);
        }

        private void ClearEquipSlot()
        {
            m_SelectedEquip = null;
            m_FirstInvSlot = -1;
            m_TxtFirstName.text = "___";
            ClearSlotIcon(m_SlotFirstParent);

            Debug.Log("[Install] Equipment slot cleared");
        }

        private void ClearMaterialSlot()
        {
            m_SelectedMaterial = null;
            m_SecondInvSlot = -1;
            m_TxtSecondName.text = "___";
            ClearSlotIcon(m_SlotSecondlParent);

            Debug.Log("[Install] Material slot cleared");
        }

        private void ClearSlotIcon(Transform slot)
        {
            if (slot == null)
                return;

            var img = slot.GetComponentInChildren<Image>(true);
            if (img == null)
                return;

            img.sprite = khung_item;
        }
    }
}