#!/usr/bin/php -q
<?php
	/**************************************************************************\
	* eGroupWare - Setup - db-schema-processor - unit tests                    *
	* http://www.egroupware.org                                                *
	* --------------------------------------------                             *
	* Written by Ralf Becker <RalfBecker@outdoor-training.de>                  *
	* --------------------------------------------                             *
	*  This program is free software; you can redistribute it and/or modify it *
	*  under the terms of the GNU General Public License as published by the   *
	*  Free Software Foundation; either version 2 of the License, or (at your  *
	*  option) any later version.                                              *
	\**************************************************************************/
	/* $Id$ */

	// For security reasons we exit by default if called via the webserver
	if (isset($_SERVER['HTTP_HOST']))
	{
		die ('Access denied !!!');
	}
	// the used domain has to be given as first parameter if called on the commandline or as domain= on the url
	if (!isset($_GET['domain'])) 
	{
		$_GET['domain'] = $_SERVER['argc'] > 1 ? $_SERVER['argv'][1] : 'default';
	}
	$path_to_egroupware = realpath(dirname(__FILE__).'/../..');	//  need to be adapted if this script is moved somewhere else

	$phpgw_info = array(
		'flags' => array(
			'disable_Template_class' => True,
			'login'                  => True,
			'currentapp'             => 'login',
			'noheader'               => True,
		)
	);
	include ($path_to_egroupware.'/header.inc.php');
	$GLOBALS['phpgw_info']['server']['asyncservice'] = 'off';

	// now we should have a valid db-connection
	$adodb = &$GLOBALS['phpgw']->ADOdb;
	$db = &$GLOBALS['phpgw']->db;

	if (isset($_SERVER['HTTP_HOST'])) echo "<pre>\n";
	echo "Serverinfo: Domain $_GET[domain]: $db->Type($db->Database)\n";
	print_r($adodb->ServerInfo());
	
	// creating a schema_proc instance
	$schema_proc = CreateObject('phpgwapi.schema_proc',$db->Type);
	$schema_proc->debug = isset($_GET['debug']) ? $_GET['debug'] : ($_SERVER['argc'] > 2 ? $_SERVER['argv'][2] :  0);

	// define a test-table to create
	$test_tables = array(
		'schema_proc_test' => array(
			'fd' => array(
				'test_auto' => array('type' => 'auto'),
				'test_int4' => array('type' => 'int','precision' => '4'),
				'test_varchar' => array('type' => 'varchar','precision' => '128'),
				'test_char' => array('type' => 'char','precision' => '10'),
				'test_timestamp' => array('type' => 'timestamp','default'=>'current_timestamp'),
				'test_text' => array('type' => 'text'),
				'test_blob' => array('type' => 'blob'),
			),
			'pk' => array('test_auto'),
			'fk' => array(),
			'ix' => array(array('test_char','test_varchar'),'test_varchar',array('test_text','options'=>array('mysql'=>'FULLTEXT','sapdb'=>false,'maxdb'=>false,'pgsql'=>false,'mssql'=>false))),
			'uc' => array('test_char')
		),
	);
	
	// droping test-tables, if they are there from a previous failed run
	foreach($adodb->MetaTables() as $table)
	{
		$table = strtolower($table);
		if (strstr($table,'schema_proc')) 
		{
			$aSql = $schema_proc->dict->DropTableSQL($table);
			$schema_proc->ExecuteSqlArray($aSql,1,"DropTableSQL('%1') = %2",$table,$aSql);
		}
	}

	echo "Creating table(s):\n";
	foreach($test_tables as $name => $definition)
	{
		echo "$name:\n";	
		$schema_proc->CreateTable($name,$definition);

		$columns = $adodb->MetaColumns($name);
		if (!$columns || count($columns) <= 0)
		{
			die("\n\n!!! Table '$name' has NOT been created !!!\n\n");
		}
		else
		{
			// check if all columns are there
			foreach($definition['fd'] as $column => $data)
			{
				check_column($column,$columns);
				if (!isset($columns[$column]) && !isset($columns[strtoupper($column)]))
				{
					print_r($columns);
					die ("\n\n!!! Column '$column' is missing !!!\n\n");
				}
			}
			// check if all indexes are there
			$indexes = $adodb->MetaIndexes($name,true);
			if ($indexes !== False)
			{
				foreach(array('ix','uc') as $kind)
				{
					foreach($definition[$kind] as $key => $idx)
					{
						check_index($idx,$kind=='uc',$indexes);
					}
				}
				if (count($definition['pk'])) check_index($definition['pk'],True,$indexes);
			}
		}
		echo $indexes !== False ? "==> SUCCESS\n" : "==> unchecked\n";	
	}
	echo "Inserting some content:\n";
	$adodb->Execute("INSERT INTO schema_proc_test (test_int4,test_varchar,test_char) VALUES (1,'Hallo Ralf','0123456789')");
	$adodb->Execute("INSERT INTO schema_proc_test (test_int4,test_varchar,test_char) VALUES (2,'Hallo wer noch?','9876543210')");
	check_content($adodb->GetAll("SELECT * FROM schema_proc_test"),array(
			array('test_auto' => 1, 'test_int4' => 1, 'test_varchar' => 'Hallo Ralf','test_char' => '0123456789'),
			array('test_auto' => 2, 'test_int4' => 2, 'test_varchar' => 'Hallo wer noch?','test_char' => '9876543210'),
		));
	echo "==> SUCCESS\n";

	echo "Droping column test_blob:\n";
	$new_table_def = $test_tables['schema_proc_test'];
	unset($new_table_def['fd']['test_blob']);
	$schema_proc->DropColumn('schema_proc_test',$new_table_def,'test_blob');
	check_column('test_blob',$adodb->MetaColumns('schema_proc_test'),False);
	echo "==> SUCCESS\n";
	
	echo "Altering column test_char to varchar(32):\n";
	$schema_proc->AlterColumn('schema_proc_test','test_char',array('type' => 'varchar','precision' => 32));
	check_column_type('test_char','varchar',32,$adodb->MetaColumns('schema_proc_test'));
	echo "==> SUCCESS\n";
	
	echo "Adding column test_bool bool:\n";
	$schema_proc->AddColumn('schema_proc_test','test_bool',array('type' => 'bool'));
	check_column('test_bool',$adodb->MetaColumns('schema_proc_test'));
	echo "==> SUCCESS\n";
	
	echo "Renaming column test_timestamp to test_time:\n";
	$schema_proc->RenameColumn('schema_proc_test','test_timestamp','test_time');
	check_column('test_timestamp',$adodb->MetaColumns('schema_proc_test'),false);
	check_column('test_time',$adodb->MetaColumns('schema_proc_test'));
	echo "==> SUCCESS\n";
	
	echo "Renaming table schema_proc_test to schema_proc_renamed:\n";
	$schema_proc->RenameTable('schema_proc_test','schema_proc_renamed');
	$tables = $adodb->MetaTables();
	check_table('schema_proc_test',$tables,False);
	check_table('schema_proc_renamed',$tables);
	echo "==> SUCCESS\n";
	
	echo "Renaming column (with index) test_varchar to test_varchar_renamed:\n";
	$schema_proc->RenameColumn('schema_proc_renamed','test_varchar','test_varchar_renamed');
	$columns = $adodb->MetaColumns('schema_proc_renamed');
	check_column('test_varchar',$columns,False);
	check_column('test_varchar_renamed',$columns);
	$indexes = $adodb->MetaIndexes('schema_proc_renamed');
	if ($indexes !== False)
	{
		check_index('test_varchar',False,$indexes,False);
		check_index('test_varchar_renamed',False,$indexes);
	}
	echo $indexes !== False ? "==> SUCCESS\n" : "==> unchecked\n";	
	
	echo "Droping index from renamed column (test_char,test_varchar_renamed):\n";
	$schema_proc->DropIndex('schema_proc_renamed',array('test_char','test_varchar_renamed'));
	$indexes = $adodb->MetaIndexes('schema_proc_renamed');
	if ($indexes !== False) check_index(array('test_char','test_varchar_renamed'),False,$indexes,False);
	echo $indexes !== False ? "==> SUCCESS\n" : "==> unchecked\n";	
	
	//print_r($adodb->MetaColumns('schema_proc_renamed'));
	//print_r($adodb->MetaIndexes('schema_proc_renamed'));
	
	echo "Inserting some more content\n";
	$db->query("INSERT INTO schema_proc_renamed (test_int4,test_varchar_renamed,test_char) VALUES (10,'Hallo Hallo Hallo ...','12345678901234567890123456789012')");
	check_content($adodb->GetAll("SELECT * FROM schema_proc_renamed"),array(
			array('test_auto' => 1, 'test_int4' => 1, 'test_varchar_renamed' => 'Hallo Ralf','test_char' => '0123456789'),
			array('test_auto' => 2, 'test_int4' => 2, 'test_varchar_renamed' => 'Hallo wer noch?','test_char' => '9876543210'),
			array('test_auto' => 3, 'test_int4' => 10, 'test_varchar_renamed' => 'Hallo Hallo Hallo ...','test_char' => '12345678901234567890123456789012'),
		));
	echo "==> SUCCESS\n";

	//echo "Reading back the content:\n";
	//$all = $adodb->GetAll("SELECT * FROM schema_proc_renamed");
	//print_r($all);

	echo "\nDroping the test-tables again\n";
	foreach($adodb->MetaTables() as $table)
	{
		$table = strtolower($table);
		if (strstr($table,'schema_proc')) 
		{
			$aSql = $schema_proc->dict->DropTableSQL($table);
			$schema_proc->ExecuteSqlArray($aSql,1,"DropTableSQL('%1') = %2",$table,$aSql);
		}
	}
	echo "\n********************\n";
	echo "*** FULL SUCCESS ***\n";
	echo "********************\n";
	echo "\nbye ...\n";


	/**
	 * Checks if table $table exists or not, die's with an error-message if the check went wrong
	 *
	 * @param string $table table-name
	 * @param array $tables array of table-names from call to MetaTables()
	 * @param boolean $existence=true should we check for existence or none-existence, default existence
	 */
	function check_table($table,$tables,$existence=True)
	{
		$exist = in_array($table,$tables) || in_array(strtoupper($table),$tables);
		
		if ($exist != $existence)
		{
			print_r($tables);
			die ("\n\n!!! Table '$table' is ".($existence ? 'missing' : 'still there')." !!!\n\n");
		}
	}

	/**
	 * Checks if $column exists or not, die's with an error-message if the check went wrong
	 *
	 * @param string $column column-name
	 * @param array $columns array of adodb field objects from MetaColumns($table)
	 * @param boolean $existence=true should we check for existence or none-existence, default existence
	 */
	function check_column($column,$columns,$existence=True)
	{
		$exist = isset($columns[$column]) || isset($columns[strtoupper($column)]);
		
		if ($exist != $existence)
		{
			print_r($columns);
			die ("\n\n!!! Column '$column' is ".($existence ? 'missing' : 'still there')." !!!\n\n");
		}
	}
	
	/**
	 * Checks the type of a column
	 *
	 * @param string $column column-name
	 * @param string $type column-type as the DB uses it, no eGW type !!!
	 * @param int $precision precision
	 * @param array $columns array of adodb field objects from MetaColumns($table)
	 */
	function check_column_type($column,$type,$precision,$columns)
	{
		static $alternate_types = array(
			'varchar'	=> array('C'),
			'int'		=> array('I'),
		);

		$data = isset($columns[$column]) ? $columns[$column] : $columns[strtoupper($column)];
		
		if (!is_object($data))
		{
			print_r($columns);
			die ("\n\n!!! Column '$column' does NOT exist !!!\n\n");
		}
		$data->type = strtolower($data->type);
		if ($data->type != $type && !in_array($data->type,$alternate_types[$type]))
		{
			print_r($columns);
			die ("\n\n!!! Column '$column' is NOT of type '$type', but '$data->type' !!!\n\n");
		}
		if ($precision && $data->max_length != $precision)
		{
			print_r($columns);
			die ("\n\n!!! Precision of column '$column' is NOT $precision, but $data->precision !!!\n\n");
		}
	}
	
	/**
	 * Checks if $idx exists or not, die's with an error-message if the check went wrong
	 *
	 * @param array $columns array of strings with column-names of that index
	 * @param boolean $unique unique index or not
	 * @param array $indexes array of index-describtions from call to MetaIndexes($table)
	 * @param boolean $existence=true should we check for existence or none-existence, default existence
	 */
	function check_index($columns,$unique,$indexes,$existence=True)
	{
		if (!is_array($columns)) $columns = array($columns);
		$existence = $existence && $columns['options'][$GLOBALS['db']->Type] !== False;
		unset($columns['options']);

		$exist = False;
		foreach($indexes as $idx_data)
		{
			if (implode(':',$columns) == strtolower(implode(':',$idx_data['columns'])))
			{
				$exist = true;
				break;
			}
		}
		if ($exist != $existence)
		{
			print_r($indexes);
			die ("\n\n!!! Index (".implode(', ',$columns).") is ".($existence ? 'missing' : 'still there')." !!!\n\n");
		}
		if ($existence && $unique != !!$idx_data['unique'])
		{
			print_r($indexes);
			die ("\n\n!!! Index (".implode(', ',$columns).") is ".($unique ? 'NOT ' : '')."unique !!!\n\n");
		}
	}

	/**
	 * Checks the content written to the table
	 * 
	 * @param array $is content read from the database via GetAll()
	 * @param array $should content against which we test
	 * @param boolean $return_false=false return false if the check fails or die with an error-msg, default die
	 */
	function check_content($is,$should,$return_false=false)
	{
		foreach($should as $key => $val)
		{
			if (!isset($is[$key]) && isset($is[strtoupper($key)])) $key = strtoupper($key);
			if (is_array($val) && !check_content($is[$key],$val,True) || !is_array($val) && $is[$key] != $val)
			{
				echo "key='$key', is="; print_r($is[$key]); echo ", should="; print_r($val); echo "\n";
				if ($return_false) return False;
				
				print_r($is);
				die("\n\n!!! Content read back from table is not as expected !!!\n\n");
			}
		}
		return True;
	}