using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;

namespace FreeSql.Tests.DataContext.SqlServer
{
	public class SqlServerFixture : IDisposable
	{
		public SqlServerFixture()
		{
			sqlServerLazy = new Lazy<IFreeSql>(() => new FreeSql.FreeSqlBuilder()
			  //.UseConnectionString(FreeSql.DataType.SqlServer, "Data Source=.;Integrated Security=True;Initial Catalog=freesqlTest;Pooling=true;Max Pool Size=10")
			  .UseConnectionString(FreeSql.DataType.SqlServer, "Data Source=(localdb)\\mssqllocaldb;Integrated Security=True;Initial Catalog=freesqlTest;Pooling=true;Max Pool Size=10")
			  .UseAutoSyncStructure(true)
			  .UseLazyLoading(true)
			  .Build());

			// ... initialize data in the test database ...
		}

		public void Dispose()
		{
			// ... clean up test data from the database ...
			ClearDataBase();
		}

		private void ClearDataBase()
		{
			var operateDataBase = "freesqlTest";
			var dataBases = SqlServer.DbFirst.GetDatabases();
			if (!dataBases.Any(t => t == operateDataBase))
				return;

			var dataTables = SqlServer.DbFirst.GetTablesByDatabase(dataBases.First(t => t == operateDataBase));
			if (dataTables.Any(item => item.Name == "TopicAddField" && item.Schema == "dbo2"))
			{
				SqlServer.Ado.ExecuteNonQuery("TRUNCATE TABLE dbo2.TopicAddField ");
				SqlServer.Ado.ExecuteNonQuery("DROP TABLE dbo2.TopicAddField");
				SqlServer.Ado.ExecuteNonQuery("DROP SCHEMA dbo2");
			}

			var tempTables = new string[] { "cccccdddwww", "song", "tb_alltype", "tb_topic", "tb_topic22",
				"tb_topic22211", "tb_topic111333", "TestTypeInfo", "TestTypeInfo333", "TestTypeParentInfo",
				"TestTypeParentInfo23123", "xxdkdkdk1222", "xxx"};
			foreach (var tempTable in tempTables)
			{
				DeleteTmpTable(dataTables, tempTable);
			}
		}

		private void DeleteTmpTable(List<DatabaseModel.DbTableInfo> dbTables, string deleteTableName, string schemaName = "dbo")
		{
			if (dbTables.Any(item => item.Name.ToLower() == deleteTableName.ToLower() && item.Schema.ToLower() == schemaName.ToLower()))
			{
				SqlServer.Ado.ExecuteNonQuery($"TRUNCATE TABLE {schemaName.ToLower()}.{deleteTableName}");
				SqlServer.Ado.ExecuteNonQuery($"DROP TABLE {schemaName.ToLower()}.{deleteTableName}");
			}
		}

		private Lazy<IFreeSql> sqlServerLazy;
		public IFreeSql SqlServer => sqlServerLazy.Value;
	}
}