using IronMountain.ResourceUtilities;
using UnityEditor;
using UnityEngine;

namespace SpellBoundAR.Items.Editor
{
    [CustomEditor(typeof(ScriptedItemTypeData), true)]
    public class ScriptedItemTypeDataInspector : UnityEditor.Editor
    {
        protected ScriptedItemTypeData ScriptedItemTypeData;
    
        protected static readonly GUIContent MoveUpButtonContent = new ("↑", "Move up.");
        protected static readonly GUIContent DeleteButtonContent = new ("✕", "Delete.");
        protected static readonly GUIContent MoveDownButtonContent = new ("↓", "Move down.");
        protected static readonly GUIContent AddNewButtonContent = new ("Add", "Add new.");

        protected virtual void OnEnable()
        {
            ScriptedItemTypeData = (ScriptedItemTypeData) target;
        }

        private void DrawPreview()
        {
            GUILayout.Space(10);
            EditorGUILayout.BeginVertical(Styles.Subbox);
            GUIContent content = new GUIContent(ScriptedItemTypeData.Depiction ? ScriptedItemTypeData.Depiction.texture : null);
            GUIStyle style = new GUIStyle
            {
                imagePosition = ImagePosition.ImageAbove,
                padding = new RectOffset(5, 5, 5, 5),
                alignment = TextAnchor.MiddleCenter,
                fixedHeight = 200,
            };
            GUILayout.Label(content, style);
            EditorGUILayout.EndVertical();
        }
        
        private void DrawGeneralSettingsBox()
        {
            GUILayout.Space(10);
            EditorGUILayout.BeginVertical(Styles.Subbox, GUILayout.MinHeight(30));
            GUILayout.Label("Scripted Type Settings", Styles.H3, GUILayout.ExpandWidth(true));
            EditorGUI.indentLevel++;
            EditorGUILayout.PropertyField(serializedObject.FindProperty("id"));
            EditorGUILayout.PropertyField(serializedObject.FindProperty("defaultName"), new GUIContent("Name"));
            EditorGUILayout.PropertyField(serializedObject.FindProperty("localizedName"));
            EditorGUILayout.PropertyField(serializedObject.FindProperty("description"));
            
            EditorGUILayout.BeginHorizontal();
            SerializedProperty depiction = serializedObject.FindProperty("depiction");
            EditorGUILayout.PropertyField(depiction);
            if (GUILayout.Button("Search", GUILayout.MaxWidth(70)))
            {
                depiction.objectReferenceValue = ResourcesUtility.Search<ResourceSprite>(ScriptedItemTypeData.Name);
            }
            EditorGUILayout.EndHorizontal();
            
            EditorGUILayout.BeginHorizontal();
            SerializedProperty instancePrefab = serializedObject.FindProperty("instancePrefab");
            EditorGUILayout.PropertyField(instancePrefab);
            if (GUILayout.Button("Search", GUILayout.MaxWidth(70)))
            {
                instancePrefab.objectReferenceValue = ResourcesUtility.Search<ResourceGameObject>(ScriptedItemTypeData.Name);
            }
            EditorGUILayout.EndHorizontal();
            
            DrawAdditionalGeneralSettingsProperties();
            EditorGUI.indentLevel--;
            EditorGUILayout.EndVertical();
        }
        
        protected virtual void DrawAdditionalGeneralSettingsProperties() { }
        
        private void DrawInstancesBox()
        {
            GUILayout.Space(10);
            EditorGUILayout.BeginVertical(Styles.Subbox, GUILayout.MinHeight(30));
            EditorGUILayout.BeginHorizontal(GUILayout.ExpandWidth(true));
            GUILayout.Label("Scripted Instances", Styles.H3, GUILayout.ExpandWidth(true));
            if (GUILayout.Button("+", GUILayout.MaxWidth(25)))
            {
                AddScriptedInstance();
                return;
            }
            EditorGUILayout.EndHorizontal();
            EditorGUI.indentLevel++;
            if (ScriptedItemTypeData.Instances.Count > 0) EditorGUILayout.PropertyField(serializedObject.FindProperty("instances"), GUIContent.none);
            EditorGUI.indentLevel--;
            EditorGUILayout.EndVertical();
        }

        protected virtual void AddScriptedInstance()
        {
            ItemsManipulator.AddInstanceToItemType<ScriptedItemInstanceData>(ScriptedItemTypeData);
        }

        protected virtual void DrawInheritedProperties() { }
 
        public override void OnInspectorGUI()
        {
            if (GUILayout.Button("Select")) Selection.activeObject = target;
            DrawPreview();
            DrawGeneralSettingsBox();
            DrawInstancesBox();
            DrawInheritedProperties();
            serializedObject.ApplyModifiedProperties();
        }
    }
}