using System;
using UnityEngine;
using UnityEditor;

//Add to an Editor folder
namespace Helios.Otto
{
    public class Otto
    {
        /// <summary>
        /// Loops through all public fields on the target mono behaviour and searches for a relevant asset in the asset database
        /// Separate your search terms with an underscore, and being as specific as possible with your variable names helps Otto to find the right assets
        /// Example: "Optimistic Unicorn.mp4" can be found with variable names "Optimistic", "Unicorn", or best of all: "Optimistic_Unicorn"
        /// </summary>
        [MenuItem("CONTEXT/MonoBehaviour/Auto Populate Variables")]
        static void AutoPopulate(MenuCommand command)
        {
            Debug.Log("[Otto]: Auto populating variables");
            var type = command.context.GetType();
            Debug.Log($"[Otto]: Doing a kickflip over the {type.Name}");
            var fields = type.GetFields();
            var fieldsSet = 0;
            for (int i = 0; i < fields.Length; i++)
            {
                var assetName = fields[i].Name.Split('_');
                var asset = AssetDatabase.FindAssets(String.Join(" ",assetName));
                if (asset.Length > 0)
                {
                    var assetPath = AssetDatabase.GUIDToAssetPath(asset[0]);
                    var loadedAsset = AssetDatabase.LoadAssetAtPath(assetPath, fields[i].FieldType);
                    if (loadedAsset != null)
                    {
                        Undo.RecordObject(command.context,$"Set field {fields[i].Name}");
                        fieldsSet++;
                        fields[i].SetValue(command.context, loadedAsset);
                    }
                }
            }
            Debug.Log($"[Otto]: All done! I set {fieldsSet} fields");
        }
    }
}