//------------------------------------------------------------
// Game Framework
// Copyright © 2013-2020 Jiang Yin. All rights reserved.
// Homepage: https://gameframework.cn/
// Feedback: mailto:ellan@gameframework.cn
//------------------------------------------------------------

using MongoDB.Bson.Serialization.Serializers;
using System.IO;

namespace ET
{
    /// <summary>
    /// 实用函数集。
    /// </summary>
    public static partial class Utility
    {
        public static class FileOpation
        {
            public static void WriteBytes(string path, byte[] buffer)
            {
                using (FileStream fs = new FileStream(path, FileMode.OpenOrCreate, FileAccess.Write))
                {
                    fs.Write(buffer, 0, buffer.Length);
                }
            }

            public static void WriteString(string path, string str)
            {
                FileStream fs = null;
                if (!File.Exists(path))
                {
                    fs = Create(path);
                }
                else
                {
                    fs = new FileStream(path, FileMode.OpenOrCreate, FileAccess.Write);
                }
                using (StreamWriter sw = new StreamWriter(fs))
                {
                    sw.Write(str);
                }
                fs.Close();
                fs.Dispose();
            }

            public static FileStream Create(string path)
            {
                if (File.Exists(path))
                {
                    return null;
                }

                return File.Create(path);
            }

            public static void Delete(string path)
            {
                if (File.Exists(path))
                {
                    File.Delete(path);
                }
            }

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

                return Directory.CreateDirectory(path);
            }

            public static void DeleteDirectory(string path, bool recursive = false)
            {
                if (Directory.Exists(path))
                {
                    Directory.Delete(path, recursive);
                }
            }

            public static void ClearDirectory(string path)
            {
                foreach (FileInfo info in GetFiles(path, "*.*", SearchOption.AllDirectories))
                {
                    Delete(info.FullName);
                }
            }


            public static FileInfo[] GetFiles(string path, string searchPattern, SearchOption searchOption)
            {
                if (string.IsNullOrEmpty(path) || !Directory.Exists(path))
                {
                    Log.Error($"path 文件夹不存在");
                    return null;
                }

                DirectoryInfo info = new DirectoryInfo(path);
                return info.GetFiles(searchPattern, searchOption);
            }
        }
    }
}