using System;
using System.Text;
using System.Collections.Generic;
using System.Data;
using System.Runtime.Serialization; 
using System.Linq;
using System.IO;

namespace IStation.DAL.LocalFile
{
    /// <summary>
    /// 项目
    /// </summary>	
    public class Project : IDAL.IProject<Entity.Project>
    { 
        #region Path

        /// <summary>
        /// 查询文件路径
        /// </summary> 
        private string GetFolderPath()
        {
            return FileHelper.GetWorkPath();
        }

        /// <summary>
        /// 查询文件路径
        /// </summary> 
        private string GetProjectPath(long id)
        {
            return FileHelper.GetProjectPath(id);
        }

        #endregion

        #region Get

        /// <summary>
        /// 查询全部
        /// </summary> 
        public List<Entity.Project> GetAll()
        {
            var path = GetFolderPath();
            var all = FileIdHelper<Entity.Project>.GetAll(path);
            var entities = all?.ToList();
            return entities;
        }

        /// <summary>
        /// 根据 Id查询
        /// </summary> 
        public Entity.Project GetById(long Id)
        { 
            var all = GetAll();
            var entities = all?.ToList();
            return entities?.Find(t => t.Id == Id);
        }

        /// <summary>
        /// 根据 Id集合查询
        /// </summary> 
        public List<Entity.Project> GetByIds(IEnumerable<long> Ids)
        {
            if (Ids == null || Ids.Count() < 1)
                return default;
            var all = GetAll();
            var entities = all?.Where(x => Ids.Contains(x.Id)).ToList();
            return entities;
        } 

        #endregion

        #region Insert

        /// <summary>
        /// 插入
        /// </summary>
        public long Insert(Entity.Project rhs)
        { 
            if (rhs == null)
                return default;
            var path = GetFolderPath();
            return FileIdHelper<Entity.Project>.Insert(path, rhs);
        }

        /// <summary>
        /// 批量插入
        /// </summary>
        public bool Inserts(IEnumerable<Entity.Project> list)
        { 
            if (list == null || list.Count() < 1)
                return default;
            var path = GetFolderPath();
            return FileIdHelper<Entity.Project>.Inserts(path, list);
        }

        /// <summary>
        /// 插入并返回
        /// </summary>
        public Entity.Project InsertR(Entity.Project rhs)
        { 
            if (rhs == null)
                return default;
            var path = GetFolderPath();
            var entities = FileIdHelper<Entity.Project>.InsertR(path, rhs);
            return entities;
        }

        /// <summary>
        /// 批量插入并返回
        /// </summary>
        public List<long> InsertsR(IEnumerable<Entity.Project> list)
        {  
            if (list == null || list.Count() < 1)
                return default;
            var path = GetFolderPath();
            var entities = FileIdHelper<Entity.Project>.InsertRs(path, list);
            return entities?.Select(x => x.Id).ToList();
        }

        #endregion

        #region Update

        /// <summary>
        /// 更新
        /// </summary>
        public bool Update(Entity.Project rhs)
        { 
            if (rhs == null)
                return default;
            var path = GetFolderPath();
            return FileIdHelper<Entity.Project>.Update(path, rhs);
        }

        /// <summary>
        /// 批量更新
        /// </summary>
        public bool Updates(IEnumerable<Entity.Project> list)
        { 
            if (list == null || list.Count() < 1)
                return default;
            var path = GetFolderPath();
            return FileIdHelper<Entity.Project>.Updates(path, list);
        }

        #endregion

        #region Delete

        /// <summary>
        /// 根据 Id删除
        /// </summary>
        public bool DeleteById(long Id)
        { 
            if (Id < 0)
                return default;
            var path = GetFolderPath();
            var bol = FileIdHelper<Entity.Project>.DeleteById(path, Id);
            return bol;
        }

        /// <summary>
        /// 根据 Id集合删除
        /// </summary>
        public bool DeleteByIds(IEnumerable<long> Ids)
        { 
            if (Ids == null || Ids.Count() < 1)
                return default;
            var path = GetFolderPath();
            var bol = FileIdHelper<Entity.Project>.DeleteByIds(path, Ids);
            return bol;
        }

        /// <summary>
        /// 删除
        /// </summary>
        public bool Delete(Entity.Project rhs)
        { 
            if (rhs == null)
                return default;
            var path = GetFolderPath();
            var bol = FileIdHelper<Entity.Project>.DeleteById(path, rhs.Id);
            return bol;
        }

        /// <summary>
        /// 批量删除
        /// </summary> 
        public bool Deletes(IEnumerable<Entity.Project> list)
        { 
            if (list == null || list.Count() < 1)
                return default;
            var path = GetFolderPath();
            var Ids = list.Select(x => x.Id).ToList();
            var bol = FileIdHelper<Entity.Project>.DeleteByIds(path, Ids);
            return bol;
        }

        /// <summary>
        /// 删除全部
        /// </summary>
        public bool DeleteAll()
        { 
            var path = GetFolderPath();
            var bol = FileIdHelper<Entity.Project>.DeleteAll(path);
            return bol;
        }
        #endregion

        #region Import

        /// <summary>
        /// 导入
        /// </summary>
        public long Import(string fileName, out string msg)
        {
            msg = string.Empty;
            var newProjectId = SnowflakeIdHelper.NextId();
            var newProjectFolderPath = GetProjectPath(newProjectId);
            ZipHelper.UnZipFolder(fileName, newProjectFolderPath);

            var defaultProject = FileIdHelper<Entity.Project>.GetLatest(newProjectFolderPath);
            if (defaultProject == null)
            {
                msg = "项目文件缺失";
                return default;
            }
            else
            {
                FileIdHelper<Entity.Project>.DeleteAll(newProjectFolderPath);
            }

            var fileInfo = new FileInfo(fileName);
            var entity = new Entity.Project();
            entity.Id = newProjectId;
            entity.Name = defaultProject.Name;
            entity.Version = defaultProject.Version;
            entity.TagName = defaultProject.TagName;
            entity.Description = defaultProject.Description;
            entity.CreateTime = fileInfo.CreationTime;
            entity.UpdateTime = fileInfo.LastWriteTime;

            var folderPath = GetFolderPath();
            FileSrcHelper<Entity.Project>.Append(folderPath, entity);
            return newProjectId;
        }

        #endregion

        #region Export

        /// <summary>
        /// 导出
        /// </summary>
        public bool Export(long id, string fileName, out string msg)
        {
            msg = string.Empty; 
            var project = GetById(id);
            var projectPath = GetProjectPath(id);
            var result = FileSrcHelper<Entity.Project>.Append(projectPath, project);
            if (!result)
            {
                msg = "项目文件未生成";
                return default;
            }

            ZipHelper.ZipFolder(projectPath, fileName);
            return true;
        }  

        #endregion

    }

}