using ce.autofac.extension;
using learun.iapplication;
using learun.util;
using System.Collections.Generic;
using System.Data;
using System.Threading.Tasks;

namespace learun.application
{
	/// <summary>
	/// 版 本 EasyCode EC管理后台
	/// Copyright (c) 2019-present EC管理有限公司
	/// 创建人：tobin
	/// 日 期：2019.09.19
	/// 描 述：数据库表管理
	/// </summary>
	public class DatabaseTableBLL : BLLBase, DatabaseTableIBLL, BLL
	{
		#region 属性

		private readonly DatabaseTableService databaseTableService = new DatabaseTableService();
		private readonly DatabaseLinkIBLL _databaseLinkIBLL;

		#endregion 属性

		/// <summary>
		///
		/// </summary>
		/// <param name="databaseLinkIBLL"></param>
		public DatabaseTableBLL(DatabaseLinkIBLL databaseLinkIBLL)
		{
			_databaseLinkIBLL = databaseLinkIBLL;
		}

		#region 获取数据

		/// <summary>
		/// 数据表列表
		/// </summary>
		/// <param name="code">数据库编码</param>
		/// <param name="tableName">表名</param>
		/// <returns></returns>
		public async Task<IEnumerable<dynamic>> GetTableList(string code, string tableName = "")
		{
			List<dynamic> list = (List<dynamic>)await databaseTableService.GetTableList(code);
			if (!string.IsNullOrEmpty(tableName))
			{
				list = list.FindAll(t => t.name == tableName);
			}
			return list;
		}

		/// <summary>
		/// 获取树形数据
		/// </summary>
		/// <param name="code">数据库编码</param>
		/// <returns></returns>
		public async Task<IEnumerable<TreeModel>> GetTreeList(string code)
		{
			List<TreeModel> list;
			if (string.IsNullOrEmpty(code))
			{
				list = (List<TreeModel>)await _databaseLinkIBLL.GetTreeListEx();
			}
			else
			{
				list = new List<TreeModel>();
				List<dynamic> databaseTableList = (List<dynamic>)await GetTableList(code);
				foreach (var item in databaseTableList)
				{
					TreeModel node = new TreeModel();
					node.id = code + item.name;
					node.text = item.name;
					node.value = code;
					node.title = item.tdescription;
					node.complete = true;
					node.isexpand = false;
					node.hasChildren = false;
					list.Add(node);
				}
			}
			return list;
		}

		/// <summary>
		/// 数据表字段列表
		/// </summary>
		/// <param name="code">数据库编码</param>
		/// <param name="tableName">表名</param>
		/// <returns></returns>
		public Task<IEnumerable<dynamic>> GetTableFiledList(string code, string tableName)
		{
			return databaseTableService.GetTableFiledList(code, tableName);
		}

		/// <summary>
		/// 获取数据表字段树形数据
		/// </summary>
		/// <param name="code">数据库编码</param>
		/// <param name="tableName">表名</param>
		/// <returns></returns>
		public async Task<IEnumerable<TreeModel>> GetFiledTreeList(string code, string tableName)
		{
			var list = await GetTableFiledList(code, tableName);
			List<TreeModel> treeList = new List<TreeModel>();
			foreach (var item in list)
			{
				TreeModel node = new TreeModel();
				node.id = item.f_column;
				node.text = item.f_column;
				node.value = item.f_column;
				node.title = item.f_remark;
				node.complete = true;
				node.isexpand = false;
				node.hasChildren = false;
				node.showcheck = true;
				treeList.Add(node);
			}
			return treeList;
		}

		/// <summary>
		/// 数据库表数据列表
		/// </summary>
		/// <param name="code">数据库编码</param>
		/// <param name="tableName">表名</param>
		/// <param name="field">字段</param>
		/// <param name="logic">逻辑</param>
		/// <param name="keyword">关键字</param>
		/// <param name="pagination">分页参数</param>
		/// <returns></returns>
		public Task<DataTable> GetTableDataList(string code, string tableName, string field, string logic, string keyword, Pagination pagination)
		{
			return databaseTableService.GetTableDataList(code, tableName, field, logic, keyword, pagination);
		}

		/// <summary>
		/// 数据库表数据列表
		/// </summary>
		/// <param name="code">数据库编码</param>
		/// <param name="tableName">表名</param>
		/// <returns></returns>
		public Task<DataTable> GetTableDataList(string code, string tableName)
		{
			return databaseTableService.GetTableDataList(code, tableName);
		}

		/// <summary>
		/// 给定查询语句查询字段
		/// </summary>
		/// <param name="code">数据库编码</param>
		/// <param name="strSql">表名</param>
		/// <returns></returns>
		public Task<IEnumerable<string>> GetSqlColName(string code, string strSql)
		{
			return databaseTableService.GetSqlColName(code, strSql);
		}

		#endregion 获取数据

		#region 提交数据

		/// <summary>
		/// 创建数据库表
		/// </summary>
		/// <param name="code">数据库编码</param>
		/// <param name="tableName">编码</param>
		/// <param name="tableRemark">表备注</param>
		/// <param name="colList">字段列表</param>
		/// <returns></returns>
		public Task<string> CreateTable(string code, string tableName, string tableRemark, List<DatabaseTableFieldModel> colList)
		{
			return databaseTableService.CreateTable(code, tableName, tableRemark, colList);
		}

		#endregion 提交数据

		#region 扩展方法

		/// <summary>
		/// C#实体数据类型
		/// </summary>
		/// <param name="datatype">数据库字段类型</param>
		/// <returns></returns>
		public string FindModelsType(string datatype)
		{
			string res = "";
			datatype = datatype.ToLower();
			switch (datatype)
			{
				case "int":
				case "number":
				case "integer":
				case "smallint":
					res = "int?";
					break;

				case "tinyint":
					res = "byte?";
					break;

				case "numeric":
				case "real":
				case "decimal":
				case "number(8,2)":
				case "money":
				case "smallmoney":
					res = "decimal?";
					break;

				case "float":
					res = "float?";
					break;

				case "char":
				case "varchar":
				case "nvarchar2":
				case "text":
				case "nchar":
				case "nvarchar":
				case "ntext":
					res = "string";
					break;

				case "bit":
					res = "bool?";
					break;

				case "datetime2":
				case "datetime":
				case "date":
				case "smalldatetime":
					res = "DateTime?";
					break;

				default:
					res = "string";
					break;
			}

			if (datatype.Contains("number("))
			{
				res = "decimal?";
			}
			return res;
		}

		/// <summary>
		/// 判断数据表字段重复
		/// </summary>
		/// <param name="keyValue">主键值</param>
		/// <param name="tableName">表名</param>
		/// <param name="keyName">主键名</param>
		/// <param name="filedsJson">数据字段</param>
		/// <returns></returns>
		public Task<bool> ExistFiled(string keyValue, string tableName, string keyName, string filedsJson)
		{
			return databaseTableService.ExistFiled(keyValue, tableName, keyName, filedsJson);
		}

		#endregion 扩展方法
	}
}