using UnityEditor;
using System.Linq;

namespace FBXImporter
{
    public static class FBXContextMenu
    {
        [MenuItem("Assets/FBX Importer/Process this FBX", false, 1000)]
        static void ProcessSingle()
        {
            foreach (var obj in Selection.objects)
            {
                string path = AssetDatabase.GetAssetPath(obj);
                if (!path.EndsWith(".fbx", System.StringComparison.OrdinalIgnoreCase) && 
                    !path.EndsWith(".obj", System.StringComparison.OrdinalIgnoreCase)) continue;
                var source = FBXSourceDetector.Detect(path);
                FBXImportDialog.Show(path, source);
            }
        }

        [MenuItem("Assets/FBX Importer/Process this FBX", true)]
        static bool ProcessSingleValidate() =>
            Selection.objects.Any(o => AssetDatabase.GetAssetPath(o)
                .EndsWith(".fbx", System.StringComparison.OrdinalIgnoreCase) ||
                AssetDatabase.GetAssetPath(o).EndsWith(".obj", System.StringComparison.OrdinalIgnoreCase));

        [MenuItem("Assets/FBX Importer/Remove from registry", false, 1001)]
        static void RemoveFromRegistry()
        {
            foreach (var obj in Selection.objects)
            {
                string path = AssetDatabase.GetAssetPath(obj);
                if (path.EndsWith(".fbx", System.StringComparison.OrdinalIgnoreCase) ||
                    path.EndsWith(".obj", System.StringComparison.OrdinalIgnoreCase))
                    ProcessedFBXRegistry.Unregister(path);
            }
        }

        [MenuItem("Assets/FBX Importer/Remove from registry", true)]
        static bool RemoveFromRegistryValidate() =>
        Selection.objects.Any(o => AssetDatabase.GetAssetPath(o)
            .EndsWith(".fbx", System.StringComparison.OrdinalIgnoreCase) ||
            AssetDatabase.GetAssetPath(o).EndsWith(".obj", System.StringComparison.OrdinalIgnoreCase));

        [MenuItem("Assets/FBX Importer/Create Asset Folder Structure", false, 1020)]
        static void CreateFolderStructure()
        {
            string selectedPath = GetSelectedFolderPath();
            if (string.IsNullOrEmpty(selectedPath)) return;

            string parent = System.IO.Path.GetDirectoryName(selectedPath).Replace("\\", "/");
            FolderSetup.Create(parent, System.IO.Path.GetFileName(selectedPath), false);
        }

        [MenuItem("Assets/FBX Importer/Create Asset Folder Structure", true)]
        static bool CreateFolderStructureValidate() => !string.IsNullOrEmpty(GetSelectedFolderPath());

        static string GetSelectedFolderPath()
        {
            if (Selection.activeObject == null) return null;
            string path = AssetDatabase.GetAssetPath(Selection.activeObject);
            return AssetDatabase.IsValidFolder(path) ? path : null;
        }
    }
}