//================================================================================
//
//================================================================================

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

//================================================================================
//
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namespace ReaderRabbit
{

    //================================================================================
    //
    //================================================================================
    public class SandwichIngredientsColumn : MonoBehaviour
	{

        //================================================================================
        //
        //================================================================================
        [SerializeField]
        private int m_Offset = 5;
		[SerializeField] private int m_MaxNumberOfIngredients = 10;
		private int m_NumberOfIngredients;
		private BoxCollider2D m_BoxCollider;
		private SandwichManager m_Owner;
		private List<SpriteRenderer> m_Ingredients;

        //================================================================================
        //
        //================================================================================
        void Start()
		{
			this.m_Owner = this.transform.parent.GetComponent<SandwichManager>();
			this.m_BoxCollider = (BoxCollider2D)this.GetComponent<Collider2D>();
			this.m_Ingredients = new List<SpriteRenderer>();
		}

        //================================================================================
        //
        //================================================================================
        public bool AddIngredient(GameObject ingredient)
		{
			if (m_NumberOfIngredients < m_MaxNumberOfIngredients)
			{
				ingredient.transform.position = GetNextItemPosition(ingredient);
				m_Ingredients.Add(ingredient.GetComponent<SpriteRenderer>());
				m_NumberOfIngredients++;
				return true;
			}
			else
			{
				// TODO: Play feedback
			}
			return false;
		}

        //================================================================================
        //
        //================================================================================
        private Vector2 GetNextItemPosition(GameObject ingredient)
		{
			Vector2 position = new Vector2(
				this.m_BoxCollider.offset.x - this.m_BoxCollider.size.x / 2 - ingredient.GetComponent<SpriteRenderer>().bounds.size.x / 2,
				this.m_BoxCollider.offset.y - this.m_BoxCollider.size.y / 2 + ingredient.GetComponent<SpriteRenderer>().bounds.size.y);
				
			position.y += m_NumberOfIngredients * m_Offset;
			
			return position;
		}

        //================================================================================
        //
        //================================================================================
        public void ClearIngredients()
		{	
			m_Ingredients.Clear();
		}

        //================================================================================
        //
        //================================================================================
        public float GetIngredientsHeight()
		{
			float height = 0;
			
			foreach (SpriteRenderer sprite in m_Ingredients)
			{
				//height += sprite.bounds.extents.y;
				height = sprite.bounds.extents.y;
			}
			
			return height;
		}

        //================================================================================
        //
        //================================================================================
        public void Reset()
		{
			m_NumberOfIngredients = 0;
			foreach (SpriteRenderer sprite in m_Ingredients)
			{
				GameObject.Destroy(sprite.gameObject);
			}
			m_Ingredients.Clear();
		}

    } // public class SandwichIngredientsColumn : MonoBehaviour

} // namespace ReaderRabbit