using UnityEditor;
using UnityEngine;

namespace EnhancedHierarchy.Icons {
    public sealed class Static : IconBase {

        public override IconPosition Side { get { return IconPosition.All; } }

        public override Texture2D PreferencesPreview { get { return Utility.GetBackground(Styles.staticToggleStyle, false); } }

        //public override string PreferencesTooltip { get { return "Some tag for the tooltip here"; } }

        public override void DoGUI(Rect rect) {
            using(new GUIBackgroundColor(EnhancedHierarchy.CurrentGameObject.isStatic ? Styles.backgroundColorEnabled : Styles.backgroundColorDisabled)) {
                GUI.changed = false;
                GUI.Toggle(rect, EnhancedHierarchy.CurrentGameObject.isStatic, Styles.staticContent, Styles.staticToggleStyle);

                if (!GUI.changed)
                    return;

                var isStatic = !EnhancedHierarchy.CurrentGameObject.isStatic;
                var selectedObjects = GetSelectedObjectsAndCurrent();
                var changeMode = AskChangeModeIfNecessary(selectedObjects, Preferences.StaticAskMode.Value, "Change Static Flags",
                    "Do you want to " + (!isStatic ? "enable" : "disable") + " the static flags for all child objects as well?");

                switch (changeMode) {
                    case ChildrenChangeMode.ObjectOnly:
                        foreach (var obj in selectedObjects) {
                            Undo.RegisterCompleteObjectUndo(obj, "Static Flags Changed");
                            obj.isStatic = isStatic;
                        }
                        break;

                    case ChildrenChangeMode.ObjectAndChildren:
                        foreach (var obj in selectedObjects) {
                            Undo.RegisterFullObjectHierarchyUndo(obj, "Static Flags Changed");

                            var transforms = obj.GetComponentsInChildren<Transform>(true);
                            foreach (var transform in transforms)
                                transform.gameObject.isStatic = isStatic;
                        }
                        break;
                }
            }
        }

    }
}