using System.IO;
using UnityEditor;
using UnityEngine;
using Ashwild.Crafting;
using Ashwild.Inventory;

namespace Ashwild.EditorTools
{
    /// <summary>
    /// Editor-only factory that creates CraftingRecipe assets for the Ashwild Database window.
    /// Kept separate from the window so recipe authoring stays a single-purpose, testable helper —
    /// mirrors ItemAssetFactory for items.
    /// </summary>
    public static class RecipeAssetFactory
    {
        #region Constants

        private const string RecipesFolder = "Assets/GAME/ScriptableObjects/Recipes";

        #endregion

        #region Recipe Asset

        /// <summary>
        /// Creates a fresh CraftingRecipe asset under the recipes folder with a unique name, seeding
        /// its recipe name and (optionally) the result item so the new asset is immediately coherent.
        /// Returns the asset for selection, or null if the folder cannot be made.
        /// </summary>
        public static CraftingRecipe CreateRecipe(string desiredName, ItemData resultItem)
        {
            if (!EnsureFolder(RecipesFolder)) return null;

            string safeName = string.IsNullOrWhiteSpace(desiredName) ? "NewRecipe" : desiredName.Trim();
            string assetPath = AssetDatabase.GenerateUniqueAssetPath($"{RecipesFolder}/{safeName}.asset");

            CraftingRecipe recipe = ScriptableObject.CreateInstance<CraftingRecipe>();
            AssetDatabase.CreateAsset(recipe, assetPath);

            SerializedObject so = new SerializedObject(recipe);
            so.FindProperty("recipeName").stringValue = safeName;
            so.FindProperty("resultQuantity").intValue = 1;
            if (resultItem != null) so.FindProperty("resultItem").objectReferenceValue = resultItem;
            so.ApplyModifiedPropertiesWithoutUndo();

            EditorUtility.SetDirty(recipe);
            AssetDatabase.SaveAssets();
            return recipe;
        }

        #endregion

        #region Internal Helpers

        /// <summary>
        /// Ensures a project-relative asset folder exists, creating any missing segments. Returns
        /// false (and logs) when the path cannot be created.
        /// </summary>
        private static bool EnsureFolder(string folder)
        {
            if (AssetDatabase.IsValidFolder(folder)) return true;

            string parent = Path.GetDirectoryName(folder).Replace('\\', '/');
            string leaf = Path.GetFileName(folder);
            if (!EnsureFolder(parent))
            {
                Debug.LogError($"[RecipeAssetFactory] Could not create folder '{folder}'.");
                return false;
            }

            AssetDatabase.CreateFolder(parent, leaf);
            return AssetDatabase.IsValidFolder(folder);
        }

        #endregion
    }
}