/*     INFINITY CODE 2013-2017      */
/*   http://www.infinity-code.com   */

using UnityEngine;
using UnityEngine.UI;

namespace InfinityCode.OnlineMapsExamples
{
    /// <summary>
    /// Example of how to make a tooltip using uGUI for all markers
    /// </summary>
    public class uGUICustomTooltipForAllMarkersExample3 : MonoBehaviour
    {
        /// <summary>
        /// Prefab of the tooltip
        /// </summary>
        public GameObject tooltipPrefab;

        /// <summary>
        /// Container for tooltip
        /// </summary>
        public Canvas container;

        private GameObject tooltip;

        private void Start()
        {
            OnlineMapsMarker marker = OnlineMaps.instance.AddMarker(OnlineMaps.instance.position, "Marker 1");
            marker.customData = new CData
            {
                title = "Marker 1",
                label = "Hello World"
            };
            OnlineMapsMarkerBase.OnMarkerDrawTooltip = delegate { };

            OnlineMaps.instance.OnUpdateLate += OnUpdateLate;
        }

        private void OnUpdateLate()
        {
            OnlineMapsMarker tooltipMarker = OnlineMaps.instance.tooltipMarker as OnlineMapsMarker;

            CData data = null;
            if (tooltipMarker != null) data = tooltipMarker.customData as CData;

            if (data != null)
            {
                if (tooltip == null)
                {
                    tooltip = Instantiate(tooltipPrefab) as GameObject;
                    (tooltip.transform as RectTransform).SetParent(container.transform);
                }
                Vector2 screenPosition = OnlineMapsControlBase.instance.GetScreenPosition(tooltipMarker.position);
                screenPosition.y += tooltipMarker.height;
                Vector2 point;
                Camera cam = container.renderMode == RenderMode.ScreenSpaceOverlay ? null : container.worldCamera;
                RectTransformUtility.ScreenPointToLocalPointInRectangle(container.transform as RectTransform, screenPosition, cam, out point);
                (tooltip.transform as RectTransform).localPosition = point;
                Text[] texts = tooltip.GetComponentsInChildren<Text>();

                texts[0].text = data.title;
                texts[1].text = data.label;

            }
            else
            {
                OnlineMapsUtils.DestroyImmediate(tooltip);
                tooltip = null;
            }
        }

        internal class CData
        {
            public string title;
            public string label;
        }
    }
}