<?php

namespace Sandpiper\Actions;

use \DOMDocument; use \DOMElement; use \DOMCDATASection;

use \Yosymfony\Toml\Toml;

use \SBRL\Utilities\SimpleXmlWriter;

class Report extends \Sandpiper\AbstractAction
{
	
	public function __construct()
	{
		libxml_disable_entity_loader(false);
	}
	
	public function handle() {
		global $settings;
		
		header("content-type: text/plain");
		
		if($this->get_request_method() !== "PUT")
			\send_error(405, "Only PUT requests to this action are allowed.");

		if(!$this->param_exists("place_id"))
			exit("Error: No place id provided.\n");
		if(!$this->param_exists("summary"))
			exit("Error: No summary provided.\n");
		if(!$this->param_exists("version"))
			exit("No version provided.\n");
		
		/******************************************************/
		
		$place = null;
		foreach($settings->get("places") as $current_place) {
			if($current_place["key"] == $this->param_get("place_id", null)) {
				$place = $current_place;
				break;
			}
		}
		
		if($place == null)
			exit("Error: Place id doesn't match.\n");
		
		$new_report = new \stdClass();
		$new_report->version = escape4xml($this->param_get("version", "?"));
		$new_report->summary = escape4xml($this->param_get("summary", "(Unknown error)"));
		$new_report->details = escape4xml($this->param_get("details", ""));
		$new_report->stack_trace = $this->get_post_body();

		$report_dir = ROOT_DIR . "/{$settings->get("data_dir")}/places/" . slugify($place["name"]);
		$report_filename = "$report_dir/" . slugify($new_report->summary) . ".xml";
		
		// Create the directory if it doesn't exist already
		if(!file_exists($report_dir))
			mkdir($report_dir, 0750, true);

		// Save the individual report

		if(!file_exists($report_filename)) {
			$writer = new \SBRL\Utilities\SimpleXmlWriter(); // It's started automagically
			$writer->prettyprint = true;
			$writer->add_xslt("/theme/stack-traces.xslt");
			$writer->open("error_info");
			$writer->addtag("project_name", [], $place["name"]); // For aesthetic purposes
			$writer->addtag("summary", [], $new_report->summary);
			$writer->open("reports");
			$writer->close();
			$writer->close();
			file_put_contents($report_filename, $writer->render());
		}
		
		// We have to use a DOMDocument here because SimpleXML mangled the 
		// whitespace in the stack traces
		$report_xml = new DOMDocument("1.0", "UTF-8");
		$report_xml->preserveWhiteSpace = false;
		$report_xml->formatOutput = true;
		if(!$report_xml->loadXML(file_get_contents($report_filename), LIBXML_NONET))
			exit("Error: Invalid XML generated when creating a new report file.\n");
		
		$report_node = new DOMElement("report");
		$report_xml->getElementsByTagName("reports")->item(0)->appendChild($report_node);
		
		$report_node->appendChild(new DOMElement("timestamp", date(DATE_ATOM)));
		$report_node->appendChild(new DOMElement("version", $new_report->version));
		$report_node->appendChild(new DOMElement("details", $new_report->details));
		$stack_trace_node = new DOMElement("stack_trace");
		$report_node->appendChild($stack_trace_node);
		$stack_trace_node->appendChild($report_xml->createCDATASection($new_report->stack_trace));

		// NOTE: When uploading with curl to test this, make sure to use --data-binary and not simply -d, as this mangles the newline characters.
		file_put_contents($report_filename, $report_xml->saveXML());

		// Update the place index
		$place_index_filename = "$report_dir/index.xml";
		
		if(!file_exists($place_index_filename)) {
			$writer = new SimpleXmlWriter();
			$writer->prettyprint = true;

			$writer->add_xslt("/theme/error-index.xslt");
			$writer->open("errors_index");
			$writer->addtag("project_name", [], $place["name"]);
			$writer->open("error_list");
			$writer->close();
			$writer->close();
			file_put_contents($place_index_filename, $writer->render());
		}
		$index_xml = simplexml_load_file($place_index_filename);
		
		$index_entry = null;
		foreach($index_xml->error_list->error as $entry) {
			var_dump($entry);
			if($entry->filename->__toString() != basename($report_filename))
				continue;
			$index_entry = $entry;
			break;
		}

		if($index_entry == null) {
			$index_entry = $index_xml->error_list->addChild("error");
			$index_entry->summary = $new_report->summary;
			$index_entry->last_report = date(DATE_ATOM);
			$index_entry->filename = basename($report_filename);
			$index_entry->report_count = 0;
		}

		$index_entry->report_count = intval($index_entry->report_count) + 1;
		
		// This is fine because we don't have to worry about the whitespace in the
		// stack traces here
		file_put_contents($place_index_filename, simplexml_asxml_pretty($index_xml));
        
		http_response_code(200);
		exit("Report submitted successfully!\n");
	}
}