using Cielonos.MainGame.Inventory;
using Cielonos.MainGame.Interactions;
using SLSUtilities.General;
using SLSUtilities.UI;
using TMPro;
using UnityEngine;
using UnityEngine.UI;

namespace Cielonos.MainGame.UI
{
    /// <summary>
    /// 物流中心（商店）列表中的单个商品选择器条目。
    /// 显示物品图标、名称、价格，点击后选中该商品并通知 LogisticCenterUIPage 更新详情面板。
    /// 价格以 RareMaterial 数量为单位。
    /// </summary>
    public class LogisticsCenterSelector : UIElementBase
    {
        private LogisticsCenterUIPage Page => PlayerCanvas.MainGamePages.logisticsCenterPage;

        public ItemBase item;
        public int price;

        [Header("UI References")]
        public Button button;
        public Image background;
        public Image itemIcon;
        public Image rarityFrame;
        public Image selectorHint;
        public TMP_Text itemName;
        public TMP_Text priceText;
        public RectTransform tagContainer;

        [Header("Visual Settings")]
        public Color normalColor = new Color(0.2f, 0.2f, 0.2f, 0.8f);
        public Color selectedColor = new Color(0.4f, 0.6f, 0.9f, 0.9f);
        public Color affordableColor = new Color(1f, 1f, 1f, 1f);
        public Color unaffordableColor = new Color(1f, 0.3f, 0.3f, 1f);

        private bool isSelected;

        /// <summary>
        /// 用给定的商品数据配置此选择器的显示内容。
        /// </summary>
        /// <param name="itemRef">物品组件引用。</param>
        /// <param name="itemPrice">售价（RareMaterial 数量）。</param>
        public void Setup(ItemBase itemRef, int itemPrice)
        {
            item = itemRef;
            price = itemPrice;

            if (item == null || item.contentData == null)
            {
                Hide();
                return;
            }

            ContentData data = item.contentData;

            // 图标
            Sprite icon = data.itemType == ItemType.MainWeapon ? data.rectIcon : data.squareIcon;
            if (itemIcon != null)
            {
                itemIcon.sprite = icon;
                itemIcon.enabled = icon != null;
            }

            // 名称（本地化）
            if (itemName != null)
            {
                itemName.text = data.displayNameKey.Localize();
            }

            // 价格
            RefreshPriceDisplay();

            // 默认取消选中状态
            SetSelected(false);

            // 绑定按钮事件
            if (button != null)
            {
                button.onClick.RemoveAllListeners();
                button.onClick.AddListener(OnClicked);
            }

            Show();
        }

        /// <summary>
        /// 设置选中/取消选中的视觉状态。
        /// </summary>
        public void SetSelected(bool selected)
        {
            isSelected = selected;

            if (background != null)
            {
                background.color = isSelected ? selectedColor : normalColor;
            }

            if (selectorHint != null)
            {
                selectorHint.enabled = isSelected;
            }
        }

        /// <summary>
        /// 刷新价格文本颜色（根据玩家当前 RareMaterial 持有量）。
        /// </summary>
        public void RefreshPriceDisplay()
        {
            if (priceText == null) return;

            priceText.text = price.ToString();

            int playerCurrency = MainGameManager.Player.inventorySc.GetRareMaterialAmount();
            priceText.color = playerCurrency >= price ? affordableColor : unaffordableColor;
        }

        private void OnClicked()
        {
            Page?.SelectItem(this);
        }
    }
}