<?
include "../common.inc.php";

if(array_key_exists('action', $_POST)){
	switch($_POST['action']){
		case 'rollover':
			// error check the data that's getting posted
			$year = $_POST['year'];
			if(!is_numeric($year)){
				error_("Not a valid year");
				break;
			}
			if($year <= $config['FISCALYEAR']){
				error_("The new fiscal year must be after the current one");
				break;
			}

			// ok, the request checks out, let's go ahead and do the rollover
			echo rolloverfiscalyear($year);
			break;
		default:

	}
	exit;
}

send_header("Fiscal Rollover");
//echo "not implemented yet";
draw_body();
send_footer();
exit;


function draw_body(){
	global $config;
?>

	<script language="javascript" type="text/javascript">
	function confirmYearRollover(){
		var currentyear = <?=$config['FISCALYEAR']?>;
		var nextyear = document.forms.rollover.nextfiscalyear.value;

		var okay=confirm('Are you sure you want to roll the FISCALYEAR from '+currentyear+' to '+nextyear+'? This can not be undone and should only be done if you are absolutely sure!');
		if(okay){
			$.post('rolloverfiscal.php', {'action':'rollover', 'year':$('#nextfiscalyear').val()}, function(result){
				$('#results').html(result);
			});
		}
		return false;
	}
	</script>
<?
	echo "<br />";
	echo "<a href=\"backuprestore.php\">".i18n("You should consider making a database backup before rolling over, just in case!")."</a><br />\n";
	echo "<br />";
	echo "<form name=\"rollover\" method=\"post\" action=\"rolloverfiscal.php\" onsubmit=\"return confirmYearRollover()\">";
	echo i18n("Current Fiscal Year").": <b>".$config['FISCALYEAR']."</b><br />";
	$nextfiscalyear = $config['FISCALYEAR'] + 1;
	echo i18n("Next Fiscal Year").": <input size=\"8\" type=\"text\" id=\"nextfiscalyear\" value=\"$nextfiscalyear\" />";
	echo "<br />";
	echo "<input type=\"submit\" value=\"".i18n("Rollover Fiscal Year")."\" />";
	echo "</form>";
	echo "<div id=\"results\"></div>";
}

function rolloverfiscalyear($newYear){
	global $config;
	$oldYear = $config['FISCALYEAR'];
	$yearDiff = $newYear - $oldYear;

	// first we'll roll over fundraising_campaigns:
	$fields = "`name`,`type`,`startdate`,`enddate`,`followupdate`,`active`,`target`,`fundraising_goal`,`filterparameters`";
	$q = mysql_query("SELECT $fields FROM fundraising_campaigns WHERE fiscalyear = $oldYear");
	while(mysql_error() == null && $r = mysql_fetch_assoc($q)){
		foreach(array('startdate','enddate','followupdate') as $dateField){
			$dateval = $r[$dateField];
			$parts = explode('-', $dateval);
			if($parts[0] != '0000')
				$parts[0] += $yearDiff;
			$r[$dateField] = implode('-', $parts);
		}
		$r['fiscalyear'] = $newYear;

		$fields = array_keys($r);
		$values = array_values($r);
		foreach($values as $idx => $val){
			$values[$idx] = mysql_real_escape_string($val);
		}
		$query = "INSERT INTO fundraising_campaigns (`" . implode("`,`", $fields) . "`) VALUES('" . implode("','", $values) . "')";
		mysql_query($query);
	}

	// next we'll hit findraising_donor_levels
	$fields = "`level`,`min`,`max`,`description`";
	if(mysql_error() == null)
		$q = mysql_query("SELECT $fields FROM fundraising_donor_levels WHERE fiscalyear = $oldYear");
	while(mysql_error() == null && $r = mysql_fetch_assoc($q)){
		$r['fiscalyear'] = $newYear;
		$fields = array_keys($r);
		$values = array_values($r);
		foreach($values as $idx => $val){
			$values[$idx] = mysql_real_escape_string($val);
		}
		$query = "INSERT INTO fundraising_donor_levels (`" . implode("`,`", $fields) . "`) VALUES('" . implode("','", $values) . "')";
		mysql_query($query);
	}

	// and now we'll do findraising_goals
	$fields = "`goal`,`name`,`description`,`system`,`budget`,`deadline`";
	if(mysql_error() == null){
		$q = mysql_query("SELECT $fields FROM fundraising_goals WHERE fiscalyear = $oldYear");
	}
	while(mysql_error() == null && $r = mysql_fetch_assoc($q)){
		$dateval = $r['deadline'];
		$parts = explode('-', $dateval);
		if($parts[0] != '0000')
			$parts[0] += $yearDiff;
		$r['deadline'] = implode('-', $parts);

		$r['fiscalyear'] = $newYear;

		$fields = array_keys($r);
		$values = array_values($r);
		foreach($values as $idx => $val){
			$values[$idx] = mysql_real_escape_string($val);
		}
		$query = "INSERT INTO fundraising_goals (`" . implode("`,`", $fields) . "`) VALUES('" . implode("','", $values) . "')";
		mysql_query($query);
	}

	// finally, let's update the fiscal year itself:
	if(mysql_error() == null){
		mysql_query("UPDATE config SET val='$newYear' WHERE var='FISCALYEAR'");
	}

	if(mysql_error() == null){
		$config['FISCALYEAR'] = $newYear;
		echo happy(i18n("Fiscal year has been rolled over from %1 to %2", array($oldYear, $newYear)));
	}else{
		echo error(mysql_error());
	}
	
}