using System;
using System.Collections.Generic;
using TMPro;
using UnityEngine;
using UnityEngine.UI;

namespace BeiBao.View
{
    public class BeiBaoView : MonoBehaviour
    {
        public TMP_InputField nameText;
        public TMP_InputField idText;
        public TMP_InputField countText;
        public Button Add;
        public GameObject itemPfb;

        Inventory inventory;
        List<BeiBaoItem> items = new List<BeiBaoItem>();

        private void Awake()
        {
            inventory = new Inventory(5);
            for (var i = 0; i < inventory.SlotCount; i++)
            {
                var instantiate = GameObject.Instantiate(itemPfb, itemPfb.transform.parent);
                instantiate.gameObject.SetActive(true);
                var beiBaoItem = instantiate.GetComponent<BeiBaoItem>();
                beiBaoItem.Refresh(inventory.Slots[i]);
                items.Add(beiBaoItem);
            }

            inventory.RefreshInventorySlot += Refresh;
            Add.onClick.AddListener(ClickAdd);
        }

        private void ClickAdd()
        {
            var count = int.Parse(countText.text);
            var id = int.Parse(idText.text);
            if (count > 0)
            {
                // 创建物品
                Item healthPotion = new Item(nameText.text, id, 99);

                // 添加物品到背包
                var b = inventory.AddItem(healthPotion, count, out var restCount);
                if (!b)
                {
                    Debug.Log($"添加失败！还有 {restCount} 个 {healthPotion.ItemName} 未添加，背包没位置放了，放不了一点");
                }
            }
            else if (count < 0)
            {
                var b = inventory.RemoveItem(id, Mathf.Abs(count),out var restCount);
                if (!b)
                {
                    Debug.Log($"取出失败！还有 {restCount} 个 {id} 未取出，背包没有东西了，取不了一点");
                }
            }
        }

        void Refresh(IReadOnlyList<InventorySlot> slot)
        {
            for (var i = 0; i < slot.Count; i++)
            {
                items[i].Refresh(slot[i]);
            }
        }
    }
}