using UnityEngine;
using System.IO;
#if UNITY_EDITOR
using UnityEditor;
#endif

namespace EasyMotionRecorder
{
    public class SavePathManager : MonoBehaviour
    {
        [Header("저장 경로 설정")]
        [SerializeField] private string motionSavePath = "Assets/Resources/Motion";
        [SerializeField] private string facialSavePath = "Assets/Resources/Motion";
        [SerializeField] private string objectSavePath = "Assets/Resources/Motion";
        
        [Header("설정")]
        [SerializeField] private bool createSubdirectories = true;
        
        [Header("자동 출력 옵션")]
        [SerializeField] private bool exportHumanoidOnSave = false;
        [SerializeField] private bool exportGenericOnSave = false;
        [SerializeField] private bool exportFBXAsciiOnSave = false;
        [SerializeField] private bool exportFBXBinaryOnSave = false;

        [Header("인스턴스 설정")]
        [SerializeField] private string instanceID = "";
        [SerializeField] private bool useDontDestroyOnLoad = false;
        
        public bool ExportHumanoidOnSave => exportHumanoidOnSave;
        public bool ExportGenericOnSave => exportGenericOnSave;
        public bool ExportFBXAsciiOnSave => exportFBXAsciiOnSave;
        public bool ExportFBXBinaryOnSave => exportFBXBinaryOnSave;
        public string InstanceID => instanceID;

        private void Awake()
        {
            // 인스턴스 ID가 비어있으면 자동 생성
            if (string.IsNullOrEmpty(instanceID))
            {
                instanceID = System.Guid.NewGuid().ToString().Substring(0, 8);
            }
            
            // DontDestroyOnLoad 설정 (선택적)
            if (useDontDestroyOnLoad)
            {
                DontDestroyOnLoad(gameObject);
            }
            
            InitializePaths();
        }

        private void InitializePaths()
        {
            if (createSubdirectories)
            {
                CreateDirectoryIfNotExists(motionSavePath);
                CreateDirectoryIfNotExists(facialSavePath);
            }
        }

        private void CreateDirectoryIfNotExists(string path)
        {
            if (!Directory.Exists(path))
            {
                Directory.CreateDirectory(path);
#if UNITY_EDITOR
                AssetDatabase.Refresh();
#endif
            }
        }

        public static DirectoryInfo SafeCreateDirectory(string path)
        {
            if (!Directory.Exists(path))
            {
                return Directory.CreateDirectory(path);
            }
            return new DirectoryInfo(path);
        }

        public string GetMotionSavePath()
        {
            return motionSavePath;
        }

        public string GetFacialSavePath()
        {
            return facialSavePath;
        }

        public string GetObjectSavePath()
        {
            return objectSavePath;
        }

        public void SetMotionSavePath(string path)
        {
            motionSavePath = path;
            if (createSubdirectories)
                CreateDirectoryIfNotExists(path);
        }

        public void SetFacialSavePath(string path)
        {
            facialSavePath = path;
            if (createSubdirectories)
                CreateDirectoryIfNotExists(path);
        }

        public void SetObjectSavePath(string path)
        {
            objectSavePath = path;
            if (createSubdirectories)
                CreateDirectoryIfNotExists(path);
        }

        public void SetCreateSubdirectories(bool create)
        {
            createSubdirectories = create;
            if (create)
            {
                InitializePaths();
            }
        }

        public void SetInstanceID(string id)
        {
            instanceID = id;
        }

        public void SetUseDontDestroyOnLoad(bool use)
        {
            useDontDestroyOnLoad = use;
        }

        public void ResetToDefaults()
        {
            motionSavePath = "Assets/Resources/Motion";
            facialSavePath = "Assets/Resources/Motion";
            objectSavePath = "Assets/Resources/Motion";
            createSubdirectories = true;
            
            // 자동 출력 옵션 초기화
            exportHumanoidOnSave = false;
            exportGenericOnSave = false;
            exportFBXAsciiOnSave = false;
            exportFBXBinaryOnSave = false;

            InitializePaths();
        }

        public void SynchronizePaths()
        {
            // 모든 경로를 모션 경로와 동일하게 설정
            facialSavePath = motionSavePath;
            objectSavePath = motionSavePath;
            if (createSubdirectories)
            {
                InitializePaths();
            }
        }

        // 인스턴스별 고유 경로 생성
        public string GetInstanceSpecificPath(string basePath)
        {
            if (string.IsNullOrEmpty(instanceID))
                return basePath;
            
            string directory = Path.GetDirectoryName(basePath);
            string fileName = Path.GetFileNameWithoutExtension(basePath);
            string extension = Path.GetExtension(basePath);
            
            return Path.Combine(directory, $"{fileName}_{instanceID}{extension}");
        }
    }
}