<?php
/*Copyright (c) 2009, Dan "Ducky" Little & GeoMOOSE.org

Permission is hereby granted, free of charge, to any person obtaining a copy
of this software and associated documentation files (the "Software"), to deal
in the Software without restriction, including without limitation the rights
to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
copies of the Software, and to permit persons to whom the Software is
furnished to do so, subject to the following conditions:

The above copyright notice and this permission notice shall be included in
all copies or substantial portions of the Software.

THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
THE SOFTWARE.*/

/*
 * GeoMOOSE 2 Select Service (customized by Houston Engineering)
 */
$html = "";
$debug = false;
if($debug) {
	$args = explode('&', $argv[1]);
	foreach($args as $arg) {
		$kv = explode('=', $arg, 2);
		$_REQUEST[$kv[0]] = urldecode($kv[1]);
	}
	#print $args;
}

include('../php/config.php');

# Turn off the warning reporting
 error_reporting(E_ERROR | E_PARSE);

$usejQuery = $_REQUEST['usejQuery'];
$template = $_REQUEST['template'];
$template_header = $_REQUEST['template_header'];
$template_footer = $_REQUEST['template_footer'];
$template_header_tools = $_REQUEST['template_header_tools']; //This is only used with jQuery and is optional

//Lets do some error checking to make sure the template files are right
if($usejQuery && file_exists($CONFIGURATION['root'].$usejQuery) == false) {
	echo "jQuery template not valid";
	exit();
}
if(!$template || file_exists($CONFIGURATION['root'].$template) == false) {
	echo "Template not valid";
	exit();
}
if(!$template_header || file_exists($CONFIGURATION['root'].$template_header) == false) {
	echo "Template header not valid";
	exit();
}
if(!$template_footer || file_exists($CONFIGURATION['root'].$template_footer) == false) {
	echo "Template footer not valid";
	exit();
}

$vector_js = "removeFeature();";

$projection = $CONFIGURATION['projection'];
$tempDirectory = $CONFIGURATION['temp'];

# A buffer for the 'select' shapes
$shape_buffer = $_REQUEST['shape_buffer'];
//$selection_buffer = $_REQUEST['selection_buffer'];
if(!isset($shape_buffer)) { $shape_buffer = 0; }
//if(!isset($selection_buffer)) { $selection_buffer = 0; }

# Get the Query Shape
$shape_is_object = $_REQUEST['shape_is_object'];
if($shape_is_object == "true") {
	$shape = json_decode(stripslashes($_REQUEST['shape']),true);
	$shape = array_values($shape);
}
else {
	$shapeTemp = $_REQUEST['shape'];

	// LK This checks to ensure a POLYGON shape has at least 4 verices, if not, it takes the first vertex and makes it a point for the select
	$shape_explode = explode("((",$shapeTemp);
	$shape_type = $shape_explode[0];
	if($shape_type == "POLYGON") {
		$coords = str_replace("))","",$shape_explode[1]);
		$coords = explode(",",$coords);
		$coords_count = count($coords);
		if($coords_count < 4) {
			$shapeTemp = "POINT(" . $coords[0] . ")";
		}
	}

	$shape[0] = $shapeTemp;
}
for($i = 0; $i < sizeof($shape); $i++) {
	$wkt = $shape[$i];
	$id = 'drawn' . $i;
	$selectShapes[$i] = ms_shapeObjFromWkt($shape[$i]);
}

$originalselect = $selectShapes;
$queryShapes = array();

for($j = 0; $j < sizeof($selectShapes); $j++) {
	if($selectShapes[$j]->type != MS_SHAPE_POLYGON) {
		# Small buffer converts points and lines to polygons
		$selectShapes[$j] = $selectShapes[$j]->buffer(.01);
	}
	array_push($queryShapes, $selectShapes[$j]->buffer($shape_buffer));
}

# This is the layer where shapes are selected from
$selectLayer = $_REQUEST['select_layer'];

# Load the mapbook
$mapbook = getMapbook();
$selectMap = getMapfile($mapbook, $selectLayer);

$map = ms_newMapObj($CONFIGURATION['root'].$selectMap);
$layersToQuery = array();
$shapesFound = array();

$layer = array_reverse(explode('/', $selectLayer));
$layer = $layer[0];
if($layer == 'all') {
	for($i = 0; $i < $map->numlayers; $i++) {
		array_push($layersToQuery, $map->getLayer($i));
	}
} else {
	array_push($layersToQuery, $map->getLayerByName($layer));
}

# Build a massive shape
$queryShape = array_pop($queryShapes); # this should be the initial selection area.
foreach($queryShapes as $shape) {

	if($shape->type != MS_SHAPE_POLYGON and $selection_buffer == 0) {
		$shape = $shape->buffer(.0001);
	}
	//LK This takes all the query shapes and creates a MULTIPOLYGON for queryByShape and to send back to client to draw
	$queryShape = $queryShape->union($shape->buffer($selection_buffer));
}

//LK Add queryShape to vector layer
$wkt = $queryShape->toWkt();
$id = 'drawn';
$vector_js .= "highlight.draw(\"" . $wkt . "\",\"" . $id . "\",\"\",\"select\");";

$foundShapes = array();
$attributes = false;
$results = '';
$result_feature = $queryShape;

for($i = 0; $i < $map->numlayers; $i++) {
	$layer = $map->getLayer($i);
	$layer->set('status', MS_OFF);	# Turn off extraneous layers
}
foreach($layersToQuery as $layer) {
	$layer->set('template', $CONFIGURATION['root'].$template);

	if(!$usejQuery) {
		$layer->set('header', $CONFIGURATION['root'].$template_header);
		$layer->set('footer', $CONFIGURATION['root'].$template_footer);
	}
	$layer->set('status', MS_DEFAULT);
	$map->queryByShape($queryShape);
	$results = $map->processquerytemplate(array(), false);
	$layer->open();
	$attributes = $layer->getItems();
	for($r = 0; $r < $layer->getNumResults(); $r++) {
		$result = $layer->getResult($r);
		$res = $layer->getResult(0);
		$firstResult = $layer->getFeature($res->shapeindex);
		$parcelWkt = $firstResult->toWkt();

		array_push($foundShapes, $layer->getFeature($result->shapeindex, $result->tileindex));
		#$sh = $lay->getFeature($res->shapeindex, $res->tileindex);

		if($result_feature) {
			$result_feature = $result_feature->union($layer->getFeature($result->shapeindex, $result->tileindex));
		}
		else {
			$html =  "Sorry, the selection did not work, please try again";
			//exit();
		}
	}
	$layer->close();
}
if($result_feature) {
	$result_feature = $result_feature->toWkt();
}
else {
	$html = "Sorry, the selection did not work, please try again";
	//exit();
}

$dict['parcel'] = $_REQUEST['parcel'];


foreach($foundShapes as $shape) {
//LK Add found shapes to vector layer
	$wkt = $shape->toWkt();
	$id = $shape->values[$_REQUEST['id']];

	$values = json_encode($shape->values);
	$vector_js .= "highlight.draw(\"" . $wkt . "\",\"" . $id . "\",\"\",\"highlight\",$values);";
}

# All that work for a dozen lines of output.
header('Content-type: text/xml');
print "<results>";
print "<script><![CDATA[";

	print $vector_js;

	if($usejQuery) {
		$scripts = $CONFIGURATION['root'].$usejQuery;
		include($scripts);
	}
	else {
		print "$(\"#results\").hide();";
		print "if(resultsTable) {resultsTable.fnClearTable();}";
		print "$(\"#showResultsTable\").hide();";
	}

print "]]></script>";
print "<html><![CDATA[";

	if($usejQuery) {
//		print "<button type=\"button\" onclick=\"if( $('#results').is(':visible')) {highlightClear();$('#results').hide('slide',{ direction: 'down' });}\">Results</button>";
	}
	else {
		print processTemplate($results, $dict);
		print $html;
	}

print "]]></html></results>";

function processTemplate($str, $dict) {
	foreach($dict as $k => $v) {
		$str = str_replace('['.$k.']', $v, $str);
	}
	return $str;
}
?>