//********************************************************//
//                                                        //
//   Copyright © All rights reserved. MyNameIsVoo. 2020.  //
//                                                        //
//                  COPYING FORBIDEN                      //
//                                                        //
//********************************************************//

using UnityEngine;
using UnityEngine.UI;

namespace ICWM
{
    namespace Loot
    {
        public class SearchLootIcon : MonoBehaviour
        {
            [Header("ATTRIBUTES")]
            [SerializeField] private int IDSeach = 0;
            [SerializeField] private Material m_Material;

            [Header("textures ATTRIBUTES")]
            [SerializeField] private int colCount = 4;
            [SerializeField] private int rowCount = 4;

            [Header("animation ATTRIBUTES")]
            [SerializeField] private int rowNumber = 0; //Zero Indexed
            [SerializeField] private int colNumber = 0; //Zero Indexed
            [SerializeField] private int totalCells = 4;
            [SerializeField] private float fps = 10;

            private float time = 0f;

            private void Start()
            {
                time = 0f;
                GetComponent<Image>().material = Instantiate(m_Material);
                GetComponent<Image>().material.name = IDSeach.ToString();
            }

            private void Update()
            {
                SetSpriteAnimation(colCount, rowCount, rowNumber, colNumber, totalCells, fps);
            }

            #region PUBLIC

            public void ResetMaterial()
            {
                time = 0f;

                // Size of every cell
                float sizeX = 1.0f / colCount;
                float sizeY = 1.0f / rowCount;
                Vector2 size = new Vector2(sizeX, sizeY);

                // split into horizontal and vertical index
                var uIndex = 0 % colCount;
                var vIndex = 0 / colCount;

                // build offset
                // v coordinate is the bottom of the image in opengl so we need to invert.
                float offsetX = (uIndex + colNumber) * size.x;
                float offsetY = (1.0f - size.y) - (vIndex + rowNumber) * size.y;
                Vector2 offset = new Vector2(offsetX, offsetY);

                GetComponent<Image>().material.SetTextureOffset("_MainTex", offset);
                GetComponent<Image>().material.SetTextureScale("_MainTex", size);
            }

            #endregion

            #region PRIVATE

            private void SetSpriteAnimation(int colCount, int rowCount, int rowNumber, int colNumber, int totalCells, float fps)
            {
                // Calculate index
                int index = 0;

                if (IDSeach == 1) // Persent
                {
                    if (LootBase.instance.GetDeltaTimeLootSearching() >= fps)
                        return;
                    index = (int)(LootBase.instance.GetDeltaTimeLootSearching() * fps);
                }
                else
                {
                    index = (int)(time * fps);
                    time += Time.deltaTime;
                }

                // Repeat when exhausting all cells
                index = index % totalCells;

                // Size of every cell
                float sizeX = 1.0f / colCount;
                float sizeY = 1.0f / rowCount;
                Vector2 size = new Vector2(sizeX, sizeY);

                // split into horizontal and vertical index
                var uIndex = index % colCount;
                var vIndex = index / colCount;

                // build offset
                // v coordinate is the bottom of the image in opengl so we need to invert.
                float offsetX = (uIndex + colNumber) * size.x;
                float offsetY = (1.0f - size.y) - (vIndex + rowNumber) * size.y;
                Vector2 offset = new Vector2(offsetX, offsetY);

                GetComponent<Image>().material.SetTextureOffset("_MainTex", offset);
                GetComponent<Image>().material.SetTextureScale("_MainTex", size);
            }

            #endregion
        }
    }
}