// Copyright (C) 2004-2007 MySQL AB
//
// This program is free software; you can redistribute it and/or modify
// it under the terms of the GNU General Public License version 2 as published by
// the Free Software Foundation
//
// There are special exceptions to the terms and conditions of the GPL 
// as it is applied to this software. View the full text of the 
// exception in file EXCEPTIONS in the directory of this software 
// distribution.
//
// This program is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
// GNU General Public License for more details.
//
// You should have received a copy of the GNU General Public License
// along with this program; if not, write to the Free Software
// Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA 

using System;
using System.Text;
using System.Data;
using System.IO;
using NUnit.Framework;

namespace MySql.Data.MySqlClient.Tests
{
	[TestFixture]
	public class ScriptExecution : BaseTest
	{
		[SetUp]
		public override void Setup()
		{
			base.Setup ();
			execSQL("CREATE TABLE Test (id INT NOT NULL, name VARCHAR(250), PRIMARY KEY(id))");
		}

        private int statementCount;
        private string statementTemplate1 = @"CREATE PROCEDURE `spTest{0}`() NOT DETERMINISTIC
					CONTAINS SQL SQL SECURITY DEFINER COMMENT '' 
					BEGIN
						SELECT 1,2,3;
					END{1}";

        [Test]
        public void ExecuteScriptWithProcedures()
        {
            if (Version < new Version(5, 0)) return;

            statementCount = 0;
            string scriptText = String.Empty;
            for (int i=0; i < 10; i++)
            {
                scriptText += String.Format(statementTemplate1, i, "$$");
            }
            MySqlScript script = new MySqlScript(scriptText);
            script.StatementExecuted += new MySqlStatementExecutedEventHandler(ExecuteScriptWithProcedures_QueryExecuted);
            script.Connection = conn;
            script.Delimiter = "$$";
            int count = script.Execute();
            Assert.AreEqual(10, count);

            MySqlCommand cmd = new MySqlCommand(
                String.Format(@"SELECT COUNT(*) FROM information_schema.routines WHERE
                routine_schema = '{0}' AND routine_name LIKE 'spTest%'",
                database0), conn);
            Assert.AreEqual(10, cmd.ExecuteScalar());
        }

        void ExecuteScriptWithProcedures_QueryExecuted(object sender, MySqlScriptEventArgs e)
        {
            string stmt = String.Format(statementTemplate1, statementCount++, null);
            Assert.AreEqual(stmt, e.StatementText);
        }

        private string statementTemplate2 = @"INSERT INTO Test (id, name) VALUES ({0}, 'a "" na;me'){1}";
        [Test]
        public void ExecuteScriptWithInserts()
        {
            statementCount = 0;
            string scriptText = String.Empty;
            for (int i = 0; i < 10; i++)
            {
                scriptText += String.Format(statementTemplate2, i, ";");
            }
            MySqlScript script = new MySqlScript(scriptText);
            script.Connection = conn;
            script.StatementExecuted += new MySqlStatementExecutedEventHandler(ExecuteScriptWithInserts_StatementExecuted);
            int count = script.Execute();
            Assert.AreEqual(10, count);

            MySqlCommand cmd = new MySqlCommand("SELECT COUNT(*) FROM Test", conn);
            Assert.AreEqual(10, cmd.ExecuteScalar());
        }

        void ExecuteScriptWithInserts_StatementExecuted(object sender, MySqlScriptEventArgs e)
        {
            string stmt = String.Format(statementTemplate2, statementCount++, null);
            Assert.AreEqual(stmt, e.StatementText);
        }

        [Test]
        public void ExecuteScriptContinueOnError()
        {
            statementCount = 0;
            string scriptText = String.Empty;
            for (int i = 0; i < 5; i++)
                scriptText += String.Format(statementTemplate2, i, ";");
            scriptText += "bogus statement;";
            for (int i = 5; i < 10; i++)
                scriptText += String.Format(statementTemplate2, i, ";");
            MySqlScript script = new MySqlScript(scriptText);
            script.Connection = conn;
            script.Error += new MySqlScriptErrorEventHandler(ExecuteScript_ContinueOnError);
            int count = script.Execute();
            Assert.AreEqual(10, count);
            Assert.AreEqual(1, statementCount);

            MySqlCommand cmd = new MySqlCommand("SELECT COUNT(*) FROM Test", conn);
            Assert.AreEqual(10, cmd.ExecuteScalar());
        }

        void ExecuteScript_ContinueOnError(object sender, MySqlScriptErrorEventArgs args)
        {
            args.Ignore = true;
            statementCount++;
        }

        [Test]
        public void ExecuteScriptNotContinueOnError()
        {
            statementCount = 0;
            string scriptText = String.Empty;
            for (int i = 0; i < 5; i++)
                scriptText += String.Format(statementTemplate2, i, ";");
            scriptText += "bogus statement;";
            for (int i = 5; i < 10; i++)
                scriptText += String.Format(statementTemplate2, i, ";");
            MySqlScript script = new MySqlScript(scriptText);
            script.Connection = conn;
            script.Error += new MySqlScriptErrorEventHandler(ExecuteScript_NotContinueOnError);
            int count = script.Execute();
            Assert.AreEqual(5, count);
            Assert.AreEqual(1, statementCount);

            MySqlCommand cmd = new MySqlCommand("SELECT COUNT(*) FROM Test", conn);
            Assert.AreEqual(5, cmd.ExecuteScalar());
        }

        void ExecuteScript_NotContinueOnError(object sender, MySqlScriptErrorEventArgs args)
        {
            args.Ignore = false;
            statementCount++;
        }

        [Test]
        public void ExecuteScriptWithUserVariables()
        {
            string connStr = conn.ConnectionString.ToLowerInvariant();
            connStr = connStr.Replace("allow user variables=true",
                "allow user variables=false");
            using (MySqlConnection c = new MySqlConnection(connStr))
            {
                c.Open();
                string scriptText = "SET @myvar = 1";
                MySqlScript script = new MySqlScript(scriptText);
                script.Connection = c;
                int count = script.Execute();
                Assert.AreEqual(1, count);
            }
        }
         
        /// <summary>
        /// Bug #46429 use DELIMITER command in MySql.Data.MySqlClient.MySqlScript  
        /// </summary>
        [Test]
        public void ScriptWithDelimiterStatements()
        {
            if (Version < new Version(5, 0)) return;

            StringBuilder sql = new StringBuilder();

            sql.AppendFormat("{0}DELIMITER $${0}", Environment.NewLine);
            sql.AppendFormat(statementTemplate1, 1, "$$");
            sql.AppendFormat("{0}DELIMITER //{0}", Environment.NewLine);
            sql.AppendFormat(statementTemplate1, 2, "//");

            MySqlScript s = new MySqlScript();
            s.Query = sql.ToString();
            s.Delimiter = "XX";
            s.Connection = conn;
            int count = s.Execute();
        }

        /// <summary>
        /// Bug #46429	use DELIMITER command in MySql.Data.MySqlClient.MySqlScript
        /// </summary>
        [Test]
        public void DelimiterInScriptV2()
        {
            var sql = new StringBuilder();

            sql.AppendLine("DELIMITER MySuperDelimiter");
            sql.AppendLine("CREATE PROCEDURE TestProcedure1()");
            sql.AppendLine("BEGIN");
            sql.AppendLine("  SELECT * FROM mysql.proc;");
            sql.AppendLine("END MySuperDelimiter");
            sql.AppendLine("CREATE PROCEDURE TestProcedure2()");
            sql.AppendLine("BEGIN");
            sql.AppendLine("  SELECT * FROM mysql.proc;");
            sql.AppendLine("END mysuperdelimiter");

            sql.AppendLine("DELIMITER ;");

            var script = new MySqlScript(conn, sql.ToString());
            script.Execute();
        }


        /// <summary>
        /// Bug #50344	MySqlScript.Execute() throws InvalidOperationException
        /// </summary>
        [Test]
        public void EmptyLastLineWithScriptExecute()
        {
            StringBuilder sb = new StringBuilder();
            sb.AppendLine("DROP FUNCTION IF EXISTS `BlaBla`;");
            sb.AppendLine("DELIMITER ;;");
            MySqlScript script = new MySqlScript(conn, sb.ToString());
            // InvalidOperationException : The CommandText property has not been properly initialized.
            script.Execute(); 
        }
    }
}