using System;
using Minesweeper.Core;
using TMPro;
using UnityEngine;
using UnityEngine.EventSystems;
using UnityEngine.UI;

namespace Minesweeper.Presentation.Views
{
    public sealed class CellView : MonoBehaviour, IPointerClickHandler
    {
        [SerializeField] private Button button;
        [SerializeField] private Image image;
        [SerializeField] private TMP_Text label;

        private int x;
        private int y;
        private bool inputEnabled = true;

        public event Action<int, int> OpenRequested;
        public event Action<int, int> FlagRequested;

        public void Bind(Button button, Image image, TMP_Text label)
        {
            this.button = button;
            this.image = image;
            this.label = label;
        }

        public void Initialize(int x, int y)
        {
            this.x = x;
            this.y = y;
        }

        public void SetInputEnabled(bool enabled)
        {
            inputEnabled = enabled;
            if (button != null)
            {
                button.interactable = enabled;
            }
        }

        public void Render(BoardCellData cell, float pixelsPerUnitMultiplier)
        {
            gameObject.name = $"bt_{cell.X}_{cell.Y}_{cell.DisplayValue}";

            if (image != null)
            {
                image.pixelsPerUnitMultiplier = pixelsPerUnitMultiplier;
                image.color = cell.IsOpened ? new Color(0.78f, 0.78f, 0.78f) : Color.white;
            }

            if (label != null)
            {
                if (cell.IsFlagged)
                {
                    label.text = "F";
                }
                else if (!cell.IsOpened)
                {
                    label.text = string.Empty;
                }
                else if (cell.IsMine)
                {
                    label.text = "M";
                }
                else
                {
                    label.text = cell.NeighborMines == 0 ? string.Empty : cell.NeighborMines.ToString();
                }
            }
        }

        public void OnPointerClick(PointerEventData eventData)
        {
            if (!inputEnabled)
            {
                return;
            }

            if (eventData.button == PointerEventData.InputButton.Left)
            {
                OpenRequested?.Invoke(x, y);
            }
            else if (eventData.button == PointerEventData.InputButton.Right)
            {
                FlagRequested?.Invoke(x, y);
            }
        }
    }
}