using System;
using System.Collections;
using System.Collections.Generic;
using UnityEngine;

namespace KairoEngine.Chunks
{
    [System.Serializable]
    public struct Chunk<TChunkBlock>
    {
        private bool initialized;
        public bool isInitialized() => initialized;
        private Vector3Int size;
        public Vector3Int position { get; private set; }
        public Vector3 globalPosition { get; private set; }
        public TChunkBlock[ , , ] blocks;

        public Chunk(Vector3Int size, Vector3 globalPosition, Vector3Int position, Func<Chunk<TChunkBlock>, Vector3Int, TChunkBlock> createChunkBlock, 
            bool debug = false)
        {
            this.size = size;
            this.position = position;
            this.globalPosition = globalPosition;
            this.blocks = new TChunkBlock[size.x, size.y, size.z];
            this.initialized = true;

            for (int x = 0; x < size.x; x++)
            {
                for (int y = 0; y < size.y; y++)
                {
                    for (int z = 0; z < size.z; z++)
                    {
                        blocks[x, y, z] = createChunkBlock(this, new Vector3Int(x, y, z));
                    }
                    
                }
            }
            
        }

        public TChunkBlock GetBlock(Vector3Int pos)
        {
            if(pos.x > size.x || pos.x < 0) return default(TChunkBlock);
            if(pos.y > size.y || pos.y < 0) return default(TChunkBlock);
            if(pos.z > size.z || pos.z < 0) return default(TChunkBlock);
            return blocks[pos.x, pos.y, pos.z];
        }

        public void SetBlock(Vector3Int pos, TChunkBlock data)
        {
            if(pos.x > size.x || pos.x < 0) return;
            if(pos.y > size.y || pos.y < 0) return;
            if(pos.z > size.z || pos.z < 0) return;
            blocks[pos.x, pos.y, pos.z] = data;
        }
    }
}