<?php
/* $Revision: 1.1 $ */
/* Script to make stock locations for all parts that do not have stock location records set up*/


$PageSecurity = 15;
include('includes/session.inc');
$title = _('Import Items');
include('includes/header.inc');





// If this script is called with a file object, then the file contents are imported
// If this script is called with the gettemplate flag, then a template file is served
// Otherwise, a file upload form is displayed

$headers = array(
	'StockID',         	//  0 'STOCKID',
	'Description',     	//  1 'DESCRIPTION',
	'LongDescription', 	//  2 'LONGDESCRIPTION',
	'CategoryID',      	//  3 'CATEGORYID',
	'Units',           	//  4 'UNITS',
	'MBFlag',          	//  5 'MBFLAG',
	'EOQ',             	//  6 'EOQ',
	'Discontinued',    	//  7 'DISCONTINUED',
	'Controlled',      	//  8 'CONTROLLED',
	'Serialised',      	//  9 'SERIALISED',
	'Perishable',      	// 10 'PERISHABLE',
	'Volume',          	// 11 'VOLUME',
	'KGS',             	// 12 'KGS',
	'BarCode',         	// 13 'BARCODE',
	'DiscountCategory',	// 14 'DISCOUNTCATEGORY',
	'TaxCat',          	// 15 'TAXCAT',
	'DecimalPlaces',   	// 16 'DECIMALPLACES',
	'ItemPDF'          	// 17 'ITEMPDF'
);

if ($_FILES['userfile']['name']) { //start file processing

	//initialize
	$allowType='application/csv';
	$fieldTarget = 18;
	$InputError = 0;

	//check file info
	$fileName = $_FILES['userfile']['name'];
	$tmpName  = $_FILES['userfile']['tmp_name'];
	$fileSize = $_FILES['userfile']['size'];
	$fileType = $_FILES['userfile']['type'];
	if ($fileType != $allowType) {
		prnMsg (_('File has type '. $fileType. ', but only '. $allowType. ' is allowed.'),'error');
		include('includes/footer.inc');
		exit;
	}

	//get file handle
	$handle = fopen($tmpName, 'r');

	//get the header row
	$headRow = fgetcsv($handle, 10000, ",");

	//check for correct number of fields
	if ( count($headRow) != count($headers) ) {
		prnMsg (_('File contains '. count($headRow). ' columns, expected '. count($headers). '. Try downloading a new template.'),'error');
		fclose($handle);
		include('includes/footer.inc');
		exit;
	}

	//test header row field name and sequence
	$head = 0;
	foreach ($headRow as $headField) {
		if ( strtoupper($headField) != strtoupper($headers[$head]) ) {
			prnMsg (_('File contains incorrect headers ('. strtoupper($headField). ' != '. strtoupper($header[$head]). '. Try downloading a new template.'),'error');
			fclose($handle);
			include('includes/footer.inc');
			exit;
		}
		$head++;
	}

	//start database transaction
	DB_Txn_Begin();

	//loop through file rows
	$row = 1;
	while ( ($myrow = fgetcsv($handle, 10000, ",")) !== FALSE ) {
		
		//check for correct number of fields
		$fieldCount = count($myrow);
		if ($fieldCount != $fieldTarget){
			prnMsg (_($fieldTarget. ' fields required, '. $fieldCount. ' fields received'),'error');
			fclose($handle);
			include('includes/footer.inc');
			exit;
		}

		$StockID = strtoupper($myrow[0]);

		//first off check if the item already exists
		$sql = "SELECT COUNT(stockid) FROM stockmaster WHERE stockid='".$StockID."'";
		$result = DB_query($sql,$db);
		$testrow = DB_fetch_row($result);
		if ($testrow[0] != 0) {
			$InputError = 1;
			prnMsg (_('Stock item "'. $StockID. '" already exists'),'error');
		}

		//next validate inputs are sensible
		if (!$myrow[1] or strlen($myrow[1]) > 50 OR strlen($myrow[1])==0) {
			$InputError = 1;
			prnMsg (_('The stock item description must be entered and be fifty characters or less long') . '. ' . _('It cannot be a zero length string either') . ' - ' . _('a description is required'). ' ("'. implode('","',$myrow). $stockid. '") ','error');
		} 
		if (strlen($myrow[2])==0) {
			$InputError = 1;
			prnMsg (_('The stock item description cannot be a zero length string') . ' - ' . _('a long description is required'),'error');
		} 
		if (strlen($StockID) ==0) {
			$InputError = 1;
			prnMsg (_('The Stock Item code cannot be empty'),'error');
		} 
		if (strstr($StockID,' ') OR strstr($StockID,"'") OR strstr($StockID,'+') OR strstr($StockID,"\\") OR strstr($StockID,"\"") OR strstr($StockID,'&') OR strstr($StockID,'"')) {
			$InputError = 1;
			prnMsg(_('The stock item code cannot contain any of the following characters') . " ' & + \" \\ " . _('or a space'). " (". $StockID. ")",'error');
			$StockID='';
		} 
		if (strlen($myrow[4]) >20) {
			$InputError = 1;
			prnMsg(_('The unit of measure must be 20 characters or less long'),'error');
		} 
		if (strlen($myrow[13]) >20) {
			$InputError = 1;
			prnMsg(_('The barcode must be 20 characters or less long'),'error');
		} 
		if (!is_numeric($myrow[11])) {
			$InputError = 1;
			prnMsg (_('The volume of the packaged item in cubic metres must be numeric') ,'error');
		} 
		if ($myrow[11] <0) {
			$InputError = 1;
			prnMsg(_('The volume of the packaged item must be a positive number'),'error');
		} 
		if (!is_numeric($myrow[12])) {
			$InputError = 1;
			prnMsg(_('The weight of the packaged item in KGs must be numeric'),'error');
		} 
		if ($myrow[12]<0) {
			$InputError = 1;
			prnMsg(_('The weight of the packaged item must be a positive number'),'error');
		} 
		if (!is_numeric($myrow[6])) {
			$InputError = 1;
			prnMsg(_('The economic order quantity must be numeric'),'error');
		} 
		if ($$myrow[6] <0) {
			$InputError = 1;
			prnMsg (_('The economic order quantity must be a positive number'),'error');
		}
		if ($myrow[8]==0 AND $myrow[9]==1){
			$InputError = 1;
			prnMsg(_('The item can only be serialised if there is lot control enabled already') . '. ' . _('Batch control') . ' - ' . _('with any number of items in a lot/bundle/roll is enabled when controlled is enabled') . '. ' . _('Serialised control requires that only one item is in the batch') . '. ' . _('For serialised control') . ', ' . _('both controlled and serialised must be enabled'),'error');
		} 
		if (($myrow[5]=='A' OR $$myrow[5]=='K' OR $myrow[5]=='D') AND $myrow[8]==1){
			$InputError = 1;
			prnMsg(_('Assembly/Kitset/Service items cannot also be controlled items') . '. ' . _('Assemblies/Dummies and Kitsets are not physical items and batch/serial control is therefore not appropriate'),'error');
		} 
		if (trim($myrow[3])==''){
			$InputError = 1;
			prnMsg(_('There are no inventory categories defined. All inventory items must belong to a valid inventory category,'),'error');
		}

		if ($InputError !=1){
			if ($myrow[9]==1){ /*Not appropriate to have several dp on serial items */
				$myrow[16]=0;
			}

			//attempt to insert the stock item
			$sql = "
				INSERT INTO stockmaster (
					stockid,
					description,
					longdescription,
					categoryid,
					units,
					mbflag,
					eoq,
					discontinued,
					controlled,
					serialised,
					perishable,
					volume,
					kgs,
					barcode,
					discountcategory,
					taxcatid,
					decimalplaces,
					appendfile)
				VALUES (
					'$StockID',
					'" . $myrow[1]	. "',
					'" . $myrow[2]	. "',
					'" . $myrow[3]	. "',
					'" . $myrow[4]	. "',
					'" . $myrow[5]	. "',
					"  . $myrow[6]	. ",
					"  . $myrow[7]	. ",
					"  . $myrow[8]	. ",
					"  . $myrow[9]	. ",
					"  . $myrow[10]	. ",
					"  . $myrow[11]	. ",
					"  . $myrow[12]	. ",
					'" . $myrow[13]	. "',
					'" . $myrow[14]	. "',
					"  . $myrow[15]	. ",
					"  . $myrow[16]	. ",
					'" . $myrow[17]	. "'
				);
			";

			$ErrMsg =  _('The item could not be added because');
			$DbgMsg = _('The SQL that was used to add the item failed was');
			$result = DB_query($sql,$db, $ErrMsg, $DbgMsg);

			if (DB_error_no($db) ==0) { //the insert of the new code worked so bang in the stock location records too

				$sql = "INSERT INTO locstock (loccode,
												stockid)
									SELECT locations.loccode,
									'" . $StockID . "'
									FROM locations";

				$ErrMsg =  _('The locations for the item') . ' ' . $StockID .  ' ' . _('could not be added because');
				$DbgMsg = _('NB Locations records can be added by opening the utility page') . ' <i>Z_MakeStockLocns.php</i> ' . _('The SQL that was used to add the location records that failed was');
				$InsResult = DB_query($sql,$db,$ErrMsg,$DbgMsg);

				if (DB_error_no($db) ==0) {
					prnMsg( _('New Item') .' ' . $StockID  . ' '. _('has been added to the transaction'),'success');
				} else { //location insert failed so set some useful error info 
					$InputError = 1;
					prnMsg(_($InsResult),'error');
				}

			} else { //item insert failed so set some useful error info
				$InputError = 1;
				prnMsg(_($InsResult),'error');
			}

		}

		if ($InputError == 1) { //this row failed so exit loop
			break;
		}
		
		$row++;

	}

	if ($InputError == 1) { //exited loop with errors so rollback
		prnMsg(_('Failed on row '. $row. '. Batch import has been rolled back.'),'error');
		DB_Txn_Rollback();
	} else { //all good so commit data transaction
		DB_Txn_Commit();
		prnMsg( _('Batch Import of') .' ' . $fileName  . ' '. _('has been completed. All transactions committed to the database.'),'success');
	}

	fclose($handle);

} elseif ( isset($_POST['gettemplate']) || isset($_GET['gettemplate']) ) { //download an import template

	echo '<br /><br /><br />"'. implode('","',$headers). '"<br /><br /><br />';

} else { //show file upload form
	
	echo '
		<br />
		<a href="Z_ImportStocks.php?gettemplate=1">Get Import Template</a>
		<br />
		<br />
	';
	
	echo "
		<FORM ENCTYPE='multipart/form-data' ACTION='Z_ImportStocks.php' METHOD=POST>
			<INPUT TYPE='hidden' name='MAX_FILE_SIZE' value='1000000'>" .
			_('Upload file') . ": <INPUT NAME='userfile' TYPE='file'>
			<INPUT TYPE='submit' VALUE='" . _('Send File') . "'>
		</FORM>
	";

}


include('includes/footer.inc');
?>
