<?php

Lib::loadClass('RouteBase');
Lib::loadClass('XML');

// @see Route_Test_XslRecurse for example use of php function inside xsl
// - TODO: input file should have another extension, it is not correct dita file, it has tags RelatedFeature
// IDEA: make object (DitaRelatedFeatureParser) with state to parse input file (dita RelatedFeature tmpl)
// - at the beginning od tag RelatedFeature run php function to set current xpath in Parse object
// - at the end od tag RelatedFeature run php function to unset current xpath in Parse object (go up in doc tree)

class Route_Test_ConvertDitaRelatedFeature extends RouteBase {

	function defaultAction() {
		UI::layout( [ $this, 'defaultView' ], [ 'showMenu' => false ] );
	}
	function defaultView() {
		$inputPath = APP_PATH_ROOT . DS . 'schema/ant-url_action/default_db.in7_dziennik_koresp/test-druk/IN7_DZIENNIK_KORESP.dita'; // TODO: it is not correct dita file - has tags RelatedFeature
		$inputBody = file_get_contents($inputPath);
		DBG::nicePrint(htmlspecialchars($inputBody), "input");
		DBG::nicePrint(null, "memory_get_usage: " . round(memory_get_usage() / 1024) . " KB");

		$inputXmlArray = XML::readXmlFileToArray($inputPath); // tag
		// tag => [ 0 => tagName, 1 => attributes, 2 => childrens ]
		// tagName string
		// attributes => [ name => value ]
		// childrens => [ childTag, ... ]
		// childTag => tag | string
		DBG::nicePrint($inputXmlArray, "inputXmlArray");
		DBG::nicePrint(null, "memory_get_usage: " . round(memory_get_usage() / 1024) . " KB");

		{ // find all RelatedFeature recurse
			$rootTag = $inputXmlArray;
			$relTagsReader = new RelatedFeatureTagReader($rootTag);
			$allRelatedFeature = $relTagsReader->findRelatedFeatureRecurse($rootTag);
			DBG::nicePrint($allRelatedFeature, "allRelatedFeature");
			DBG::nicePrint(null, "memory_get_usage: " . round(memory_get_usage() / 1024) . " KB");

			$ogcSelectFields = $relTagsReader->findRelatedFeatureRecurse($rootTag);
			DBG::nicePrint($allRelatedFeature, "allRelatedFeature");
			DBG::nicePrint(null, "memory_get_usage: " . round(memory_get_usage() / 1024) . " KB");
		}

		DBG::nicePrint(null, "memory_get_usage: " . round(memory_get_usage() / 1024) . " KB");
		die('.EOF');
	}

}


class RelatedFeatureTagReader {
	function __construct() {
		$this->_parsedTags = [];
	}
	function findRelatedFeatureRecurse($tag, $parentTagId = 0, $parsedTags = []) {
		if (!is_array($tag)) return $parsedTags; // string 
		DBG::nicePrint([ 'tag' => $tag[0], 'attrs' => $tag[1], '$parsedTags' => $parsedTags ], "findRelatedFeatureRecurse({$tag[0]})");
		if (empty($tag)) return [];
		if ('RelatedFeature' === $tag[0]) {
			$parsedTags[] = [ 'tag' => $tag[0], 'attrs' => $tag[1], 'parentTagId' => $parentTagId ];
			$parentTagId = count($parsedTags) - 1;
		}
		else if (!empty($tag[1]['xpath'])) $parsedTags[] = [ 'tag' => $tag[0], 'attrs' => $tag[1], 'parentTagId' => $parentTagId ];
		if (empty($tag[2])) return $parsedTags;
		return array_reduce($tag[2], function ($ret, $childTag) use ($parentTagId) {
			return $this->findRelatedFeatureRecurse($childTag, $parentTagId, $ret);
		}, $parsedTags);
	}

}