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index.php
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<!DOCTYPE html>
<html lang="ru">
<head>
<meta charset="UTF-8" name="viewport" content="width=device-width, initial-scale=1" />
<title>Поиск задачи</title>
<script src="https://cdnjs.cloudflare.com/ajax/libs/pdf.js/2.11.338/pdf.min.js"></script>
<link href="https://cdn.jsdelivr.net/npm/[email protected]/dist/css/bootstrap.min.css" rel="stylesheet"
integrity="sha384-4bw+/aepP/YC94hEpVNVgiZdgIC5+VKNBQNGCHeKRQN+PtmoHDEXuppvnDJzQIu9" crossorigin="anonymous">
<style>
body {
font-family: sans-serif;
}
</style>
</head>
<body>
<div class="container mt-2">
<p class="font-weight-bold text-secondary">Последние новости</p>
<div class="row justify-content-center">
<?php include 'news.php'; ?>
</div>
</div>
<div class="container my-4">
<h1>Поиск задачи</h1>
<form action="" method="GET" class="mb-3">
<div class="input-group">
<input type="text" name="task_number" class="form-control" placeholder="Введите номер задачи">
<button type="submit" class="btn btn-primary">Найти</button>
</div>
</form>
<hr>
<h3>Выберите номер задачи из выпадающего меню:</h3>
<form action="" method="GET" class="mb-3">
<div class="input-group">
<select name="search" class="form-select">
<option value="">-- Выберите номер задачи --</option>
<?php
$task_files = glob("tasks/*_*");
$task_numbers = array();
foreach ($task_files as $task_file) {
$task_name = basename($task_file);
$task_number = explode('_', $task_name)[0];
if (!in_array($task_number, $task_numbers)) {
echo '<option value="' . $task_number . '">' . $task_number . '</option>';
$task_numbers[] = $task_number;
}
}
?>
</select>
<button type="submit" class="btn btn-primary">Показать</button>
</div>
</form>
<?php
function displayTask($files)
{
foreach ($files as $file) {
$individ_num = explode('.', basename($file))[0];
echo "<li style='list-style-type: none'>$individ_num</li>";
$rash = pathinfo($file, PATHINFO_EXTENSION);
if (in_array($rash, ['jpg', 'jpeg', 'png'])) {
echo " <img class='mx-auto d-block img-fluid' src='$file' alt='Задача $individ_num'> ";
solution($individ_num, $file);
} else {
echo '<div class="pdf-container mx-auto d-block">';
echo '<canvas id="pdfCanvas_' . $individ_num . '"></canvas>';
echo '</div>';
echo "<div>
<button id='prevPage_$individ_num' class='btn-primary btn'>Предыдущая страница</button>
<span id='page-num_$individ_num'></span>
<button id='nextPage_$individ_num' class='btn btn-primary'>Следующая страница</button>
</div>";
echo "<script>
let currentPage_$individ_num = 1;
let pdfFile_$individ_num = '$file';
let pdfCanvas_$individ_num = document.getElementById('pdfCanvas_$individ_num');
let pageNumSpan_$individ_num = document.getElementById('page-num_$individ_num');
let prevPageButton_$individ_num = document.getElementById('prevPage_$individ_num');
let nextPageButton_$individ_num = document.getElementById('nextPage_$individ_num');
let countPages_$individ_num;
function renderPage_$individ_num(pageNumber) {
pdfjsLib.getDocument(pdfFile_$individ_num).promise.then(function(pdf) {
pdf.getPage(pageNumber).then(function(page) {
let context = pdfCanvas_$individ_num.getContext('2d');
let viewport = page.getViewport({ scale: 1.5 });
pdfCanvas_$individ_num.height = viewport.height;
pdfCanvas_$individ_num.width = viewport.width;
let renderContext = {
canvasContext: context,
viewport: viewport
};
page.render(renderContext);
countPages_$individ_num = pdf.numPages;
pageNumSpan_$individ_num.textContent = 'Страница ' + pageNumber + ' из ' + pdf.numPages;
});
});
}
prevPageButton_$individ_num.addEventListener('click', function() {
if (currentPage_$individ_num > 1) {
currentPage_$individ_num--;
renderPage_$individ_num(currentPage_$individ_num);
}
});
nextPageButton_$individ_num.addEventListener('click', function() {
if (currentPage_$individ_num < countPages_$individ_num) {
currentPage_$individ_num++;
renderPage_$individ_num(currentPage_$individ_num);
}
});
renderPage_$individ_num(currentPage_$individ_num);
</script>";
solution($individ_num, $file);
}
}
}
function solution($individ_num, $file)
{
if (!empty(glob("tasks/{$individ_num}_resh.*"))) {
echo '<div class="mt-3">';
echo '<button class="btn btn-primary" id="showSolution_' . $individ_num . '" onclick="toggleSolution(\'' . $individ_num . '\')" style="display: inline-block;">Показать решение</button>';
echo '<button class="btn btn-primary mb-3" id="hideSolution_' . $individ_num . '" onclick="toggleSolution(\'' . $individ_num . '\')" style="display: none;">Скрыть решение</button>';
echo '<div id="solution_' . $individ_num . '" style="display: none;">';;
$individ_num = explode('.', basename($file))[0];
$solution_files = glob("tasks/{$individ_num}_resh.*");
foreach ($solution_files as $solution_file) {
$solution_ext = pathinfo($solution_file, PATHINFO_EXTENSION);
if (in_array($solution_ext, ['jpg', 'jpeg', 'png'])) {
echo " <img class='mx-auto d-block img-fluid' src='$solution_file' alt='Решение $individ_num'> ";
} else {
echo "<div>
<button id='prevPageSol_$individ_num' class='btn-primary btn'>Предыдущая страница</button>
<span id='page-numSol_$individ_num'></span>
<button id='nextPageSol_$individ_num' class='btn btn-primary'>Следующая страница</button>
</div>";
echo '<canvas id="solutionPdfCanvas_' . $individ_num . '"></canvas>';
echo "<script>
let solutionPdfFile_$individ_num = '$solution_file';
let solutionPdfCanvas_" . $individ_num . " = document.getElementById('solutionPdfCanvas_" . $individ_num . "');
let currentPageSol_" . $individ_num . " = 1;
let pageNum_" . $individ_num . " = document.getElementById('page-numSol_" . $individ_num . "');
let prevPageButtonSol_" . $individ_num . " = document.getElementById('prevPageSol_" . $individ_num . "');
let nextPageButtonSol_" . $individ_num . " = document.getElementById('nextPageSol_" . $individ_num . "');
let countSolutionPages_" . $individ_num . " ;
function renderSolutionPage_$individ_num(pageNumber) {
pdfjsLib.getDocument(solutionPdfFile_$individ_num).promise.then(function(pdf) {
pdf.getPage(pageNumber).then(function(page) {
let context = solutionPdfCanvas_$individ_num.getContext('2d');
let viewport = page.getViewport({ scale: 1 });
solutionPdfCanvas_$individ_num.height = viewport.height;
solutionPdfCanvas_$individ_num.width = viewport.width;
let renderContext = {
canvasContext: context,
viewport: viewport
};
page.render(renderContext);
countSolutionPages_$individ_num = pdf.numPages;
pageNum_$individ_num.textContent = 'Страница ' + pageNumber + ' из ' + pdf.numPages;
});
});
}
prevPageButtonSol_$individ_num.addEventListener('click', function() {
if (currentPageSol_$individ_num > 1) {
currentPageSol_$individ_num--;
renderSolutionPage_$individ_num(currentPageSol_$individ_num);
}
});
nextPageButtonSol_$individ_num.addEventListener('click', function() {
if (currentPageSol_$individ_num < countSolutionPages_$individ_num) {
currentPageSol_$individ_num++;
renderSolutionPage_$individ_num(currentPageSol_$individ_num);
}
});
renderSolutionPage_$individ_num(currentPageSol_$individ_num);
</script>";
}
}
echo '</div>';
echo '<script>
function toggleSolution(individNum) {
let solutionDiv = document.querySelector("#solution_" + individNum);
let showButton = document.querySelector("#showSolution_" + individNum);
let hideButton = document.querySelector("#hideSolution_" + individNum);
if (solutionDiv.style.display === "none") {
solutionDiv.style.display = "block";
showButton.style.display = "none";
hideButton.style.display = "inline-block";
} else {
solutionDiv.style.display = "none";
showButton.style.display = "inline-block";
hideButton.style.display = "none";
}
}
</script>';
echo '</div>';
}
}
if (isset($_GET['task_number'])) {
$selected_task_number = $_GET['task_number'];
$selected_files = glob("tasks/*_{$selected_task_number}.*");
$has_solution = !empty(glob("tasks/*_{$selected_task_number}_resh.*"));
if (count($selected_files) > 0) {
displayTask($selected_files);
} else {
echo '<p>Задачи с таким номером не найдены.</p>';
}
}
if (isset($_GET['search'])) {
$selected_task_number = $_GET['search'];
$selected_files = glob("tasks/{$selected_task_number}_*[!_resh].*");
$has_solution = !empty(glob("tasks/{$selected_task_number}_*_resh.*"));
if (count($selected_files) > 0) {
displayTask($selected_files);
} else {
echo '<p>Задачи с таким номером не найдены.</p>';
}
}
?>
</div>
<script src="https://cdn.jsdelivr.net/npm/[email protected]/dist/js/bootstrap.bundle.min.js"
integrity="sha384-HwwvtgBNo3bZJJLYd8oVXjrBZt8cqVSpeBNS5n7C8IVInixGAoxmnlMuBnhbgrkm"
crossorigin="anonymous"></script>
</body>
</html>