using System;
using System.Linq;
using UnityEditor;
using UnityEditor.SceneManagement;
using UnityEngine;

namespace Superlazy.UI
{
    [CanEditMultipleObjects]
    [CustomEditor(typeof(SLUIEntity))]
    public class SLUIEntityEditor : Editor
    {
        private SLUIEntity component;
        private static string filter;
        private static string[] methods;

        private void OnEnable()
        {
            component = target as SLUIEntity;

            methods = SLUIEditorUtil.GetAllCommands();
        }

        public override void OnInspectorGUI()
        {
            BindCheck();

            component.useOnOff = EditorGUILayout.Toggle("Use On Off", component.useOnOff);

            if (component.useOnOff)
            {
                if (component.comparison == null) component.comparison = new SLValueComparison();
                component.comparison.OnInspector(component);

                filter = EditorGUILayout.TextField("Binding Command Filter", filter);

                var filterMethods = methods;
                if (string.IsNullOrEmpty(filter) == false)
                {
                    filterMethods = methods.Where(name => name.ToLower().Contains(filter.ToLower())).ToArray();
                }

                {
                    var currMethod = Array.FindIndex(filterMethods, 0, methodName => methodName == component.onCommand);

                    var newMethod = EditorGUILayout.Popup("Turn On : " + component.onCommand, currMethod, filterMethods);
                    if (newMethod > 0)
                    {
                        component.onCommand = filterMethods[newMethod];
                    }
                    else
                    {
                        component.onCommand = "";
                    }
                }
                {
                    var currMethod = Array.FindIndex(filterMethods, 0, methodName => methodName == component.offCommand);

                    var newMethod = EditorGUILayout.Popup("Turn Off : " + component.offCommand, currMethod, filterMethods);
                    if (newMethod > 0)
                    {
                        component.offCommand = filterMethods[newMethod];
                    }
                    else
                    {
                        component.offCommand = "";
                    }
                }
            }

            component.ViewEntity();

            if (GUI.changed && Application.isPlaying == false)
            {
                EditorUtility.SetDirty(component);
                EditorSceneManager.MarkAllScenesDirty();
            }
        }

        public void BindCheck()
        {
            EditorGUILayout.LabelField("Bind :" + component.BindPath);

            var parent = component.transform.parent?.GetComponentInParent<SLUIObjectOnOff>();
            component.inherit = EditorGUILayout.Toggle("Use Inherit : " + parent?.BindPath, component.inherit);
            if (parent != null)
            {
                component.bindParent = parent;
            }
            else
            {
                component.bindParent = null;
            }

            if (component.inherit)
            {
                EditorGUILayout.ObjectField("Inherit", component.bindParent, typeof(SLUIObjectOnOff), false);
            }

            if (component.bindParent == null) // no inherit
            {
                component.bind = EditorGUILayout.TextField("Bind", component.bind);
            }
            else if (component.bindParent is SLUIList) // list inherit
            {
                if (Application.isPlaying == false)
                {
                    if (component.inherit == false || component.bind != "[~]" || component.useOnOff)
                    {
                        EditorUtility.SetDirty(component);
                    }

                    component.inherit = true;
                    component.bind = "[~]";
                    component.useOnOff = false;
                }
            }
            else // entity inherit
            {
                component.bind = EditorGUILayout.TextField("Bind", component.bind);
            }
        }
    }
}