<?php
namespace Fisharebest\Webtrees;

/**
 * webtrees: online genealogy
 * Copyright (C) 2015 webtrees development team
 * This program is free software: you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or
 * (at your option) any later version.
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
 * GNU General Public License for more details.
 * You should have received a copy of the GNU General Public License
 * along with this program. If not, see <http://www.gnu.org/licenses/>.
 */

/**
 * element handlers array
 *
 * An array of element handler functions
 * @global array $elementHandler
 */
$elementHandler = array();
$elementHandler['Report']['start']   = __NAMESPACE__ . '\\reportStartHandler';
$elementHandler['var']['start']      = __NAMESPACE__ . '\\varStartHandler';
$elementHandler['Title']['start']    = __NAMESPACE__ . '\\titleStartHandler';
$elementHandler['Title']['end']      = __NAMESPACE__ . '\\titleEndHandler';
$elementHandler['Description']['end'] = __NAMESPACE__ . '\\descriptionEndHandler';
$elementHandler['Input']['start']    = __NAMESPACE__ . '\\inputStartHandler';
$elementHandler['Input']['end']      = __NAMESPACE__ . '\\inputEndHandler';

$text = "";
$report_array = array();

/**
 * xml start element handler
 *
 * this function is called whenever a starting element is reached
 *
 * @param resource $parser the resource handler for the xml parser
 * @param string   $name the name of the xml element parsed
 * @param string[] $attrs an array of key value pairs for the attributes
 */
function startElement($parser, $name, $attrs) {
	global $elementHandler, $processIfs;

	if (($processIfs == 0) || ($name == "if")) {
		if (isset($elementHandler[$name]["start"])) {
			call_user_func($elementHandler[$name]["start"], $attrs);
		}
	}
}

/**
 * xml end element handler
 *
 * this function is called whenever an ending element is reached
 * @param resource $parser the resource handler for the xml parser
 * @param string $name the name of the xml element parsed
 */
function endElement($parser, $name) {
	global $elementHandler, $processIfs;

	if (($processIfs == 0) || ($name == "if")) {
		if (isset($elementHandler[$name]["end"])) {
			call_user_func($elementHandler[$name]["end"]);
		}
	}
}

/**
 * xml character data handler
 *
 * this function is called whenever raw character data is reached
 * just print it to the screen
 * @param resource $parser the resource handler for the xml parser
 * @param string $data the name of the xml element parsed
 */
function characterData($parser, $data) {
	global $text;

	$text .= $data;
}

/**
 * @param string[] $attrs
 */
function reportStartHandler($attrs) {
	global $report_array;

	$access = WT_PRIV_PUBLIC;
	if (isset($attrs["access"])) {
		if (isset($$attrs["access"])) {
			$access = $$attrs["access"];
		}
	}
	$report_array["access"] = $access;

	if (isset($attrs["icon"])) {
		$report_array["icon"] = $attrs["icon"];
	} else {
		$report_array["icon"] = "";
	}
}

/**
 * @param string[] $attrs
 */
function varStartHandler($attrs) {
	global $text, $fact, $desc, $type;

	$var = $attrs["var"];
	if (!empty($var)) {
		$tfact = $fact;
		if ($fact == "EVEN") {
			$tfact = $type;
		}
		$var = str_replace(array("@fact", "@desc"), array($tfact, $desc), $var);
		if (preg_match('/^I18N::number\((.+)\)$/', $var, $match)) {
			$var = I18N::number($match[1]);
		} elseif (preg_match('/^I18N::translate\(\'(.+)\'\)$/', $var, $match)) {
			$var = I18N::translate($match[1]);
		} elseif (preg_match('/^I18N::translate_c\(\'(.+)\', *\'(.+)\'\)$/', $var, $match)) {
			$var = I18N::translate_c($match[1], $match[2]);
		}
		$text .= $var;
	}
}

/**
 *
 */
function titleStartHandler() {
	global $text;

	$text = "";
}

/**
 *
 */
function titleEndHandler() {
	global $report_array, $text;

	$report_array["title"] = $text;
	$text = "";
}

/**
 *
 */
function descriptionEndHandler() {
	global $report_array, $text;

	$report_array["description"] = $text;
	$text = "";
}

/**
 * @param string[] $attrs
 */
function inputStartHandler($attrs) {
	global $input, $text;

	$text = "";
	$input = array();
	$input["name"] = "";
	$input["type"] = "";
	$input["lookup"] = "";
	$input["default"] = "";
	$input["value"] = "";
	$input["options"] = "";
	if (isset($attrs["name"])) {
		$input["name"] = $attrs["name"];
	}
	if (isset($attrs["type"])) {
		$input["type"] = $attrs["type"];
	}
	if (isset($attrs["lookup"])) {
		$input["lookup"] = $attrs["lookup"];
	}
	if (isset($attrs["default"])) {
		if ($attrs["default"] == "NOW") {
			$input["default"] = date("d M Y");
		} else {
			$match = array();
			if (preg_match("/NOW\s*([+\-])\s*(\d+)/", $attrs['default'], $match) > 0) {
				$plus = 1;
				if ($match[1] == "-") {
					$plus = -1;
				}
				$input["default"] = date("d M Y", WT_TIMESTAMP + $plus * 60 * 60 * 24 * $match[2]);
			} else {
				$input["default"] = $attrs["default"];
			}
		}
	}
	if (isset($attrs["options"])) {
		$input["options"] = $attrs["options"];
	}
}

/**
 *
 */
function inputEndHandler() {
	global $report_array, $text, $input;

	$input["value"] = $text;
	if (!isset($report_array["inputs"])) {
		$report_array["inputs"] = array();
	}
	$report_array["inputs"][] = $input;
	$text = "";
}