testing new uploader

sys0-code/api/uploader/check_reservations.php

@@ -0,0 +1,150 @@
+<?php
+date_default_timezone_set('Europe/Zurich');
+        //this file returns a list of available printers, theyr status and theyr color
+        session_start();
+	$file_path=$_SESSION["current_file"];
+        include "../../config/config.php";
+        if(!isset($_SESSION["loggedin"]) || $_SESSION["loggedin"] !== true or $_SESSION["role"][0]!=="1"){
+                die("no_auth");
+            exit;
+        }
+	$class=$_SESSION["class_id"];
+	include "../../config/config.php";
+	//check if printers are reserved right now or will be while print is running
+	$is_reserved=check_reservation_conflict($link, $class);
+	if($is_reserved==0){
+		$is_reserved=check_print_reservation_conflict($link, $class, $file_path);
+	}
+	echo(json_encode(["status"=>$is_reserved]));
+
+
+function find_print_time($file) {
+    $handle = fopen($file, "r");
+    $targetPhrase = "; estimated printing time (normal mode) = ";
+    $time = null;
+
+    while (($line = fgets($handle)) !== false) {
+        if (strpos($line, $targetPhrase) !== false) {
+            // Extract the time after the target phrase
+            $time = trim(str_replace($targetPhrase, "", $line));
+            break; // Stop once the desired line is found
+        }
+    }
+
+    fclose($handle);
+
+    return $time;
+}
+
+
+
+function check_reservation_conflict($link, $class) {
+    $reservation_conflict = false;
+    $today = date("Y-m-d");
+    $time_now = date("H:i");
+    $for_class = [];
+
+    // Query for reservations that start today or extend into today
+    $sql = "
+        SELECT day, time_from, time_to, for_class 
+        FROM reservations 
+        WHERE day <= '$today' AND 
+              (day = '$today' AND time_from <= '$time_now' OR day < '$today');
+    ";
+    $stmt = $link->prepare($sql);
+    $stmt->execute();
+    $result = $stmt->get_result();
+
+    while ($row = $result->fetch_assoc()) {
+        // Calculate the actual end time of the reservation
+        $reservation_end = strtotime($row["day"] . " " . $row["time_to"]);
+        $current_time = strtotime("$today $time_now");
+
+        if ($current_time <= $reservation_end) {
+            $reservation_conflict = true;
+            $for_class[] = $row["for_class"];
+        }
+    }
+
+    // Default value for for_class if no conflicts are found
+    if (empty($for_class)) {
+        $for_class[] = 0;
+    }
+
+    // Determine the appropriate response based on the conflict status
+    $response = 0;
+
+    if ($reservation_conflict && !in_array($class, $for_class) && $class != 0) {
+	$response=1;
+    } elseif ($class == 0 && $reservation_conflict) {
+	$response=2;
+    }
+
+    return $response;
+}
+
+function check_print_reservation_conflict($link, $class, $path) {
+    $reservation_conflict = false;
+    $for_class = [];
+    $today = date("Y-m-d");
+    $time_now = date("H:i");
+
+    // Calculate the end time of the print
+    $print_time = find_print_time($path); // Assume this function is already defined
+    preg_match('/(\d+)h/', $print_time, $hours_match);
+    preg_match('/(\d+)m/', $print_time, $minutes_match);
+    $hours = isset($hours_match[1]) ? (int)$hours_match[1] : 0;
+    $minutes = isset($minutes_match[1]) ? (int)$minutes_match[1] : 0;
+	//echo("uses ".$minutes." Minutes and ".$hours." hours");
+    $start_time = DateTime::createFromFormat('H:i', $time_now);
+    $end_time = clone $start_time;
+    $end_time->modify("+{$hours} hour");
+    $end_time->modify("+{$minutes} minutes");
+
+    // Query to get all relevant reservations (today and future overlaps)
+    $sql = "
+        SELECT day, time_from, time_to, for_class 
+        FROM reservations 
+        WHERE day >= '$today';
+    ";
+    $stmt = $link->prepare($sql);
+    $stmt->execute();
+    $result = $stmt->get_result();
+
+    // Check for conflicts with reservations
+    while ($row = $result->fetch_assoc()) {
+        $reservation_start = DateTime::createFromFormat('Y-m-d H:i', $row["day"] . ' ' . $row["time_from"]);
+        $reservation_end = DateTime::createFromFormat('Y-m-d H:i', $row["day"] . ' ' . $row["time_to"]);
+
+        // Adjust reservation end time for multi-day overlaps
+        if ($reservation_end < $reservation_start) {
+            $reservation_end->modify('+1 day');
+        }
+
+        // Check if the print overlaps with any reservation period
+        if ($start_time < $reservation_end && $end_time > $reservation_start) {
+            $reservation_conflict = true;
+            $for_class[] = $row["for_class"];
+        }
+    }
+
+    // Default value for for_class if no conflicts are found
+    if (empty($for_class)) {
+        $for_class[] = 0;
+    }
+
+    // Build response based on conflict and user access
+    $response = 0;
+
+    if ($reservation_conflict && !in_array($class, $for_class) && $class != 0) {
+	$response=1;
+    } elseif ($class == 0 && $reservation_conflict) {
+	$response=2;
+    }
+
+    return $response;
+}
+?>
+
+
+