using TyphoonGUIStyle;
using UnityEditor;
using UnityEngine;

namespace TyphoonPool
{
    [CustomEditor(typeof(Pool))]
    public class PoolInspector : Editor
    {
        private const float INFO_TITLE_WIDTH = 120;
        private const float NUMBER_WIDTH = 120;
        private const float STATUS_WIDTH = 80;
        private Pool Target => target as Pool;

        private static GUIStyle _styleStatusOn = null;

        private static GUIStyle StyleStatusOn
        {
            get
            {
                if (_styleStatusOn == null)
                {
                    _styleStatusOn = new GUIStyle(Styles.TitleBar);
                    _styleStatusOn.normal.textColor =
                        EditorGUIUtility.isProSkin ? Color.green : new Color(0f, 0.8f, 0f, 1f);
                }

                return _styleStatusOn;
            }
        }

        private static GUIStyle _styleStatusMissing = null;

        private static GUIStyle StyleStatusMissing
        {
            get
            {
                if (_styleStatusMissing == null)
                {
                    _styleStatusMissing = new GUIStyle(Styles.TitleBar);
                    _styleStatusMissing.normal.textColor =
                        EditorGUIUtility.isProSkin ? Color.red : new Color(0.8f, 0f, 0f, 1f);
                }

                return _styleStatusMissing;
            }
        }


        private static GUIStyle _elementLabel = null;

        private static GUIStyle ElementLabel
        {
            get
            {
                if (_elementLabel == null)
                {
                    _elementLabel = new GUIStyle(Styles.TitleBar);
                    _elementLabel.fontStyle = FontStyle.Normal;
                }

                return _elementLabel;
            }
        }

        private int _total;
        private int _busyCount;
        private int _missingCount;

        public override void OnInspectorGUI()
        {
            base.OnInspectorGUI();
            //绘制池对象大小
            var map = Target.MapEnumerator;
            GUILayout.BeginHorizontal();
            GUILayout.Label($"名称", ElementLabel, GUILayout.Width(INFO_TITLE_WIDTH));
            GUILayout.TextArea($"{Target.name}", ElementLabel);
            GUILayout.EndHorizontal();
            GUILayout.BeginHorizontal();
            GUILayout.Label($"Pool ID", ElementLabel, GUILayout.Width(INFO_TITLE_WIDTH));
            GUILayout.TextArea($"{Target.PoolID}", ElementLabel);
            GUILayout.EndHorizontal();
            GUILayout.BeginHorizontal();
            GUILayout.Label($"永不销毁", ElementLabel, GUILayout.Width(INFO_TITLE_WIDTH));
            GUILayout.TextArea($"{Target.IsNeverDestroyInLoad}", ElementLabel);
            GUILayout.EndHorizontal();
            GUILayout.BeginHorizontal();
            GUILayout.Label($"数量状况", ElementLabel, GUILayout.Width(INFO_TITLE_WIDTH));
            GUILayout.TextArea($"{_busyCount}/{_total}", ElementLabel);
            GUILayout.EndHorizontal();
            GUILayout.BeginHorizontal();
            GUILayout.Label($"丢失数", ElementLabel, GUILayout.Width(INFO_TITLE_WIDTH));
            GUILayout.TextArea($"{_missingCount}", ElementLabel);
            GUILayout.EndHorizontal();

            GUILayout.Space(10);
            //标题栏
            GUILayout.BeginHorizontal();
            GUILayout.Label("Object ID", Styles.TitleBar, GUILayout.Width(NUMBER_WIDTH));
            GUILayout.Label("PoolObject", Styles.TitleBar);
            GUILayout.Label("状态", Styles.TitleBar, GUILayout.Width(STATUS_WIDTH));
            GUILayout.EndHorizontal();
            _total = 0;
            _busyCount = 0;
            _missingCount = 0;
            while (map.MoveNext())
            {
                _total += 1;
                var obj = map.Current;
                var poolObject = obj.Value;
                var objectID = obj.Key;
                GUILayout.BeginHorizontal();
                GUILayout.TextArea(objectID.ToString(), ElementLabel, GUILayout.Width(NUMBER_WIDTH));
                GUILayout.Label("", ElementLabel);
                var last = GUILayoutUtility.GetLastRect();
                var component = poolObject as Component;
                if (component != null)
                {
                    EditorGUI.ObjectField(last, component, typeof(Object));
                }
                else
                {
                    GUI.Label(last, poolObject.ToString());
                }


                if (poolObject != null)
                {
                    var operation = poolObject.PoolObjectOperation;
                    if (operation.IsBusy)
                    {
                        _busyCount += 1;
                    }

                    GUILayout.Label(operation.IsBusy ? " 使用中" : "空闲",
                        operation.IsBusy ? StyleStatusOn : ElementLabel,
                        GUILayout.Width(STATUS_WIDTH));
                }
                else
                {
                    GUILayout.Label("丢失", StyleStatusMissing, GUILayout.Width(STATUS_WIDTH));
                    _missingCount += 1;
                }

                GUILayout.EndHorizontal();
            }

            Repaint();
        }
    }
}