//--------------------------------------------------------
//    [Author]:           第二世界
//    [  Date ]:           Monday, August 14, 2017
//--------------------------------------------------------
using UnityEngine;
using System.Collections;
using System.Collections.Generic;

    [RequireComponent(typeof(RectTransform))]
    public class PopupMessageContainer:MonoBehaviour {

        [SerializeField]
        PopupMessage[] popupMessages;

        [SerializeField]
        Vector2 m_CellSize;


        [SerializeField]
        float interval = 1f;

        float nextPopupTime = 0f;
        Queue<string> contents = new Queue<string>();
        Queue<PopupMessage> displayPopupMessages = new Queue<PopupMessage>();

        Vector2 bottomPosition;
        Vector2 topPosition;


        public void Popup(string _content) {


        }

        private void LateUpdate() {
            if(Time.time > nextPopupTime) {
                if(contents.Count > 0) {
                    nextPopupTime += interval;
                    var content = contents.Dequeue();

                    PopupMessage behaviour = null;
                    for(var i = 0;i < popupMessages.Length;i++) {
                        if(!popupMessages[i].isActive) {
                            behaviour = popupMessages[i];
                            break;
                        }
                    }

                    if(behaviour == null) {
                        behaviour = displayPopupMessages.Dequeue();
                    }

                    behaviour.transform.localPosition = bottomPosition;
                    displayPopupMessages.Enqueue(behaviour);
                }
            }

        }


        private void OnValidate() {

            var rectTransform = this.transform as RectTransform;

            var width = rectTransform.rect.width;
            var height = rectTransform.rect.height;

            bottomPosition = new Vector2(0,-height * 0.5f + m_CellSize.y * 0.5f);
            topPosition = new Vector2(0,height * 0.5f - m_CellSize.y * 0.5f);

        }



    }