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

public class TimeLineManager : MonoBehaviour {

    private Slider timeLine;   
    public Transform tagParent;
    private GameObject tagPrefab;
    private float parentWidth;
    // Use this for initialization
    void Awake ()
    {
        timeLine = GetComponent<Slider>();
        tagPrefab = Resources.Load("UI/TagItem") as GameObject;
        parentWidth = tagParent.GetComponent<RectTransform>().rect.width;
    }
		
	
    public void SetSlider(float maxValue,List<TagData> list)
    {
        //设置时间轴
        timeLine.maxValue = maxValue;
        timeLine.value = 0;
        //设置标签
        foreach (Transform item in tagParent)
        {
            Destroy(item.gameObject);
        }
        foreach (var tag in list)
        {
            AddItem(tag);
        }
    }
    public void AddItem(TagData tag)
    {
        GameObject item = Instantiate(tagPrefab, tagParent) as GameObject;
        var posX = (tag.time / timeLine.maxValue) * parentWidth;
        item.GetComponent<RectTransform>().anchoredPosition = new Vector2(posX, 0);
        item.GetComponent<TagItem>().SetTag(tag);
    }
    public void RemoveItem(TagData tag)
    {
        foreach (Transform item in tagParent)
        {
            var tagData=item.GetComponent<TagItem>().tagData;
            if (tag.time== tagData.time)
            {
                Destroy(item.gameObject);
            }         
        }
    }
    public void UpdateSlider(float value)
    {
        timeLine.value = value;
    }
}