using Hopetry.Models;
using Hopetry.Provider;
using SqlSugar;
using System;
using System.Collections.Generic;
using System.IO;
using System.Linq;
using System.Text;
using System.Threading.Tasks;

namespace Hopetry.Services
{
    public class FileUploadService
    {
        //private static readonly SqlSugarScope _db = SqlSugarConfig.GetSqlSugarScope();
        private static readonly SqlSugarClient _db = SqlSugarConfig.GetSqlSugarScope();
        private static readonly object _dbLock = new object();
        //private readonly SqlSugarClient _db;

        public FileUploadService()
        {
            //_db = SqlSugarConfig.GetSqlSugarScope();
        }

        // 示例：查询所有文件信息
        public List<FUpload> GetAllFiles()
        {
            return _db.Queryable<FUpload>().ToList();
        }

        // 示例：添加文件信息
        public bool AddFile(FUpload file)
        {
            return _db.Insertable(file).ExecuteCommand() > 0;
        }

        // 示例：更新文件信息
        public bool UpdateFile(FUpload file)
        {
            return _db.Updateable(file).ExecuteCommand() > 0;
        }

        // 示例：更新文件信息(上传完成更新)
        public bool UpdateFileComplete(string id,bool flag)
        {
            lock (_dbLock)
            {
                return _db.Updateable<FUpload>()
                    .SetColumns(r => new FUpload { IsComplete = flag, CompleteTime = DateTime.Now })
                    .Where(r => r.Id == id)
                    .ExecuteCommand() > 0;
            }
        }

        // 示例：删除文件信息
        public bool DeleteFile(string id)
        {
            return _db.Deleteable<FUpload>().Where(f => f.Id == id).ExecuteCommand() > 0;
        }

        // 示例：删除文件信息
        public bool DeleteFiles(List<string> ids)
        {
            var aa = _db.Deleteable<FUpload>().Where(f => ids.Contains(f.Id)).ExecuteCommand();
            return  aa> 0;
        }

        // 检查数据库是否存在，不存在则创建
        public void InitDatabase()
        {
            _db.DbMaintenance.CreateDatabase(); // SQLite不需要创建数据库，但可以用于检查

            // 如果表不存在则创建
            if (!_db.DbMaintenance.IsAnyTable("f_upload", false))
            {
                _db.CodeFirst.InitTables(typeof(FUpload));
            }
        }
    }
}