action.php

<?php
/*
#Copyright (c) 2012 Remy van Elst
#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.
*/

include("header.php");


if (empty($_GET['action'])) {
	echo $LANG["noactiongiven"];

} elseif (isset($_GET['action']) && $_GET['action'] == 'edit' ) {
#toon editformulier 
	$taskid=htmlspecialchars($_GET['id']);
	$found=0;
	echo "<h2>".$LANG["edit"]."</h2>";
	foreach ($json_a as $item => $task) {
		if ($item == $taskid) {
		$found = 1;

    echo "<table class=\"striped\">";
    echo "<tr>";
    echo "<th>".$LANG["task"]."</th>";
    echo "<th>".$LANG["priority"]."</th>";
    echo "<th>".$LANG["duedate"]."</th>";
    echo "<th>".$LANG[""]."</th>";
    echo "</tr>";
    echo "<tr>";
    echo "<td>";
    echo "<form name=\"edit\" action=\"action.php\" method=\"GET\">";
    echo "<input name=\"task\" type=\"text\" value=\"".$task["task"]."\" ></input>";
    echo "</td><td>";
    echo "<select name=\"prio\">\n";
        echo "<option value=\"2\">".$LANG["normal"]."</option>\n";
        echo "<option value=\"1\">".$LANG["high"]."</option>\n";
        echo "<option value=\"3\">".$LANG["low"]."</option>\n";
        echo "<option value=\"4\">".$LANG["onhold"]."</option>\n";
        echo "</select>\n";
    echo "</td><td>";
    echo "<input name=\"duedate\" type=\"text\" value=\"".$task["duedate"]."\"></input>\n";
    echo "</td><td>";
    echo "<input type=\"hidden\" name=\"action\" value=\"update\"></input>";
    echo "<input name=\"dateadded\" type=\"hidden\" value=\"".$task["dateadded"]."\"></input>\n";
    echo "<input type=\"hidden\" name=\"id\" value=\"".  $item ."\"></input>";
    echo "<input type=\"submit\" name=\"submit\" value=\"".$LANG["updatetask"]."\"></input>";
    echo "</form>";
    echo "</table>";
		}
	}		
		
	if ($found == 0) {
		echo $LANG["etasknotfound"];
	} 
	
} elseif (isset($_GET['submit']) && $_GET['action'] == 'update' && !empty($_GET['id']) && !empty($_GET['task']) && !empty($_GET['prio'])) {
#update task
	$taskid=htmlspecialchars($_GET['id']);
	$senttask=htmlspecialchars($_GET['task']);
	$duedate=htmlspecialchars($_GET['duedate']);
	# If the due date is empty we replace it with a dash. 
	if (empty($duedate) || !preg_match('/([0-9]{2}-[0-9]{2}-[0-9]{4})/',$duedate)) {
		$duedate = "-";
	} 
	
	$priority=htmlspecialchars($_GET['prio']);

	#Validating priority. Only 4 possibilities.
	if ($priority != "1" && $priority != "2" && $priority != "3" && $priority != "4") {
		$priority = 2;
	}
	foreach ($json_a as $item => $task) {
		if ($item == $taskid) {
			$found = 1;
			$current = file_get_contents($file);
			$current = json_decode($current, TRUE);
			$json_update["tasks"]["$item"] = array("task" => $senttask, "status" => "open", "duedate" => $duedate, "dateadded" => $task["dateadded"], "priority" => $priority);
			$replaced = array_replace_recursive($current, $json_update);
			$replaced = json_encode($replaced);
			if(file_put_contents($file, $replaced, LOCK_EX)) {
				echo $LANG["taskupdated"];
				echo $LANG["redirected"];
				redirect();
			} else {
				echo $LANG["eupdatetask"];
			}
		}
	}
	if ($found==0) {
		echo $LANG["etasknotfound"];
		echo $LANG["redirected"];
		redirect();
	}
	
} elseif (isset($_GET['submit']) && $_GET['action'] == 'add' && !empty($_GET['task']) && !empty($_GET['prio'])) {
	#add task
	$id=substr(md5(rand()), 0, 20);
	$task=htmlspecialchars($_GET['task']);
	$duedate=htmlspecialchars($_GET['duedate']);
	# If the due date is empty we replace it with a dash. And if the due date is in the past we also do that.
	if (empty($duedate)) {
		$duedate = "-";
	} elseif (!preg_match('/([0-9]{2}-[0-9]{2}-[0-9]{4})/', $duedate)) {

		$duedate = "-";
	}
	$dateadded=date('m-d-Y');
	$priority=htmlspecialchars($_GET['prio']);
	#Validating priority. Only 4 possibilities.
	if ($priority != "1" && $priority != "2" && $priority != "3" && $priority != "4") {
		$priority = 2;
	}
	$current = file_get_contents($file);
	$current = json_decode($current, TRUE);
	$json_add["tasks"]["$id"] = array("task" => $task, "status" => "open", "duedate" => $duedate, "dateadded" => $dateadded, "priority" => $priority);
		
		

	if(is_array($current)) {
		$current = array_merge_recursive($json_add, $current);
	} else {
		$current = $json_add;
	}

	$current=json_encode($current);	
	if(file_put_contents($file, $current, LOCK_EX)) {
		echo $LANG["taskadded"];
		echo $LANG["redirected"];
		redirect();
	} else {
		echo $LANG["etasknotadded"];
		echo $LANG["redirected"];
		redirect();
	}
} elseif (isset($_GET['action']) && $_GET['action'] == 'done' && !empty($_GET['id'])) {
	#task is done
	$taskid=htmlspecialchars($_GET['id']);
	$vandaag=date('m-d-Y');
	foreach ($json_a as $item => $task) {
		if ($item == $taskid) {
			$found = 1;
			$current = file_get_contents($file);
			$current = json_decode($current, TRUE);
			$json_done["tasks"]["$taskid"] = array("task" => $task['task'], "status" => "closed", "duedate" => $task["duedate"], "dateadded" => $task["dateadded"], "priority" => $task["priority"], "donedate" => $vandaag);
			$done = array_replace_recursive($current, $json_done);
			$done = json_encode($done);
			if(file_put_contents($file, $done, LOCK_EX)) {
				echo $LANG["taskdone"];
				echo $LANG["redirected"];
				redirect();
			} else {
				echo $LANG["etasknotdone"];
				echo $LANG["redirected"];
				redirect();
			}
		}
	}
	if ($found==0) {
		echo $LANG["etasknotfound"];
		echo $LANG["redirected"];
		redirect();
	}
} elseif (isset($_GET['action']) && $_GET['action'] == 'delete' && !empty($_GET['id'])) {
#delete task
	#task is done
	$taskid=htmlspecialchars($_GET['id']);
	foreach ($json_a as $item => $task) {
		if ($item == $taskid) {
			$found = 1;
			$current = file_get_contents($file);
			$current = json_decode($current, TRUE);
			$json_delete["tasks"]["$taskid"] = array("task" => $task['task'], "status" => "deleted", "duedate" => $task["duedate"], "dateadded" => $task["dateadded"], "priority" => $task["priority"]);
			$done = array_replace_recursive($current, $json_delete);
			$done = json_encode($done);
			if(file_put_contents($file, $done, LOCK_EX)) {
				echo $LANG["taskdeleted"];
				echo $LANG["redirected"];
				redirect();
			} else {
				echo $LANG["etasknotdeleted"];
				echo $LANG["redirected"];
				redirect();
			}
		}
	}
	if ($found==0) {
		echo $LANG["etasknotdeleted"];
		echo $LANG["redirected"];
		redirect();
	}
} else {
	echo $LANG["noactiongiven"];
}	

?>