<?php
/*
=========================================================
EXAM-GATE ENTERPRISE
---------------------------------------------------------
File:
admin/delete_question.php

Version:
3.0.0

Description:
Move Question to Recycle Bin

Compatible:
JSON Edition

Author:
Zamex Link Limited
=========================================================
*/
require_once "../config/core.php";
/*
=========================================================
SESSION SECURITY
=========================================================
*/

if(!isLoggedIn())
{
    header("Location:login.php");
    exit;
}

/*
=========================================================
VALIDATE REQUEST
=========================================================
*/

$examID = trim($_GET["exam"] ?? "");
$questionFileName = basename(trim($_GET["question"] ?? ""));

if($examID=="" || $questionFileName=="")
{
    die("Invalid Request.");
}

/*
=========================================================
DIRECTORIES
=========================================================
*/

$examFolder =
EXAMS_PATH .
"/" .
$examID;

if(!is_dir($examFolder))
{
    die("Invalid Examination.");
}

$questionFolder =
$examFolder .
"/QUESTIONS-" .
$examID;

$questionFile =
$questionFolder .
"/" .
$questionFileName;

if(!file_exists($questionFile))
{
    die("Question Not Found.");
}

/*
=========================================================
CREATE RECYCLE BIN
=========================================================
*/

$recycleBin =
$examFolder .
"/RECYCLE_BIN";

if(!is_dir($recycleBin))
{
    mkdir(
        $recycleBin,
        0755,
        true
    );
}

/*
=========================================================
LOAD QUESTION
=========================================================
*/

$question =
read_json($questionFile);

if(!$question)
{
    die("Unable To Read Question.");
}

/*
=========================================================
UPDATE STATUS
=========================================================
*/

$question["status"] = "Archived";

$question["deleted_date"] =
date("Y-m-d");

$question["deleted_time"] =
date("H:i:s");

$question["deleted_by"] =
$_SESSION["username"] ?? "Administrator";

$question["deleted_datetime"] =
date("Y-m-d H:i:s");

/*
=========================================================
SAVE UPDATED JSON
=========================================================
*/

$tempRecycleFile =
$recycleBin .
"/" .
$questionFileName;

write_json(
$tempRecycleFile,
$question
);

/*
=========================================================
MOVE IMAGE
=========================================================
*/

if(
!empty($question["image"])
)
{

$imageSource =
$questionFolder .
"/IMAGES/" .
$question["image"];

$imageDestination =
$recycleBin .
"/" .
$question["image"];

if(file_exists($imageSource))
{
    rename(
        $imageSource,
        $imageDestination
    );
}

}

/*
=========================================================
REMOVE ACTIVE QUESTION
=========================================================
*/

unlink($questionFile);

/*
=========================================================
CENTRAL LOG
=========================================================
*/

writeLog(

"Question Archived",

[

"exam"=>$examID,

"question"=>$question["question_id"],

"question_number"=>$question["question_number"],

"operator"=>$_SESSION["username"] ?? "Administrator",

"date"=>date("Y-m-d H:i:s")

]

);

/*
=========================================================
RETURN
=========================================================
*/

header(

"Location: question_manager.php?exam=" .

urlencode($examID) .

"&status=deleted"

);

exit;

?>