e949/front/pages/search_posts/page.php

<?php
// Search posts by filter



// Includes
// API
require_once("api/_input_checks.php");
require_once("api/post/find.php");
// Front pieces
require_once("front/pages/search_posts/gen_post_entry.php");
// Markup includes
require_once("front/pages/main_nav.php");
require_once("front/notifications.php");



// Needed config values
$cfgMaxPostsPerRequest = $Config["max_posts_per_request"];



// Checking request fields
// Checking amount of posts per page
$postsPerPage = null;
if (isset($_REQUEST["amount"])) {
	$postsPerPage = $_REQUEST["amount"];
	if (
		(!InpChk_IsValidInt32($postsPerPage))
		|| ($postsPerPage > $cfgMaxPostsPerRequest)
		|| ($postsPerPage < 1)
	) {
		$postsPerPage = $_REQUEST["amount"] = $cfgMaxPostsPerRequest; // TODO: user defaults
		NTFY_AddNotice("Wrong posts \"amount\" value in query, was normalized to $postsPerPage.", "warning");
	} else {
		$_REQUEST["amount"] = intval($_REQUEST["amount"]);
	}
} else {
	$postsPerPage = $cfgMaxPostsPerRequest; // TODO: user defaults
}
// Checking posts offset
$currentOffset = null;
if (!empty($_REQUEST["offset"])) {
	$currentOffset = $_REQUEST["offset"];
	if (
		(!InpChk_IsValidInt32($currentOffset))
		|| $currentOffset < 0
	) {
		$currentOffset = $_REQUEST["offset"] = 0;
		NTFY_AddNotice("Wrong \"offset\" value in query, was defaulted to $currentOffset.", "warning");
	} else {
		$_REQUEST["offset"] = intval($_REQUEST["offset"]);
	}
} else {
	$currentOffset = 0;
}
$currentOffsetIsCorrect = ($currentOffset === 0) || (!($currentOffset % $postsPerPage));



// Processing request
$result = Post_GetMatchingPosts_Method($_REQUEST);
$requestedPostsResult = null;
if ($result->IsError()) // Something happened
	NTFY_AddNotice("Failed to fetch posts! Reason:<br>" . $result->GetError(), "fail");
else
	$requestedPostsResult = $result->GetData();



// Checking offset again NOTICE: doshirak-code
if ($requestedPostsResult && $currentOffset > $requestedPostsResult["total_amount"]) {
	$currentOffset = $_REQUEST["offset"] = 0;
	NTFY_AddNotice("Wrong \"offset\" value in query!", "fail");
	$requestedPostsResult = null;
}



NTFY_EchoAllNotices();



?>
<div class="visualbox">
	<menu class="paginator">
	<?php
		// TODO: move to function, remove trashy dependencies and dublicate at bottom of posts list

		if ($requestedPostsResult) {
			// Calculating current page based on offset NOTICE: counting starts from zero, so user will see $currentPage + 1
			$currentPage = intdiv($currentOffset, $postsPerPage);
			if (!$currentOffsetIsCorrect)
				++$currentPage;
			// Calculating maximum page based on total posts amount
			$totalPagesAmount = intdiv($requestedPostsResult["total_amount"], $postsPerPage);
			if ($requestedPostsResult["total_amount"] % $postsPerPage)
				++$totalPagesAmount;
		} else {
			$currentPage = 0;
			$totalPagesAmount = 0;
		}

		$tempGETArr = $_GET;
		$tempGETArr["offset"] = $currentOffset; // Starting offset
		$startingPage = $currentPage; // And page, yeah

		// Calculating starting offset
		for ($i = 0; $i < 2 && $tempGETArr["offset"] > 0; ++$i) {
			$tempGETArr["offset"] -= $postsPerPage;
			--$startingPage;
		}

		// If list of posts does not begin from first
		if ($currentOffset > 0) { // Then adding link to first and previous page
			$secondTempGETArr = $_GET;
			$secondTempGETArr["offset"] = 0;
			// First page
			echo "<li><a title=\"First page\" href=\"./?" . http_build_query($secondTempGETArr) . "\">First</a></li>\n";
			// Previous page
			if ($currentOffsetIsCorrect) {
				$secondTempGETArr["offset"] = $currentOffset - $postsPerPage;
				echo "<li><a title=\"Previous page\" href=\"./?" . http_build_query($secondTempGETArr) . "\">&lt;</a></li>\n";
			}
			unset($secondTempGETArr);

			echo "<li><p>...</p></li>";
		}

		// Showing pages
		$i = $startingPage;
		$endingPage = $startingPage + 5; // Unaccurate naming, tbh, but who cares
		for (; $i < $endingPage && $i < $totalPagesAmount; ++$i) {
			echo "<li>";
			if ($tempGETArr["offset"] === $currentOffset)
				echo "<b>";
			echo "<a href=\"./?" . http_build_query($tempGETArr) . "\">" . strval($i + 1) ."</a>";
			if ($tempGETArr["offset"] === $currentOffset)
				echo "</b>";
			echo "</li>\n";

			$tempGETArr["offset"] += $postsPerPage;
		}

		// If we have even MORE posts!
		if ($currentPage < ($totalPagesAmount - 1)) { // Then adding link to last and next page
			echo "<li><p>...</p></li>";

			$secondTempGETArr = $_GET;
			// Next page
			if ($currentOffsetIsCorrect) {
				$secondTempGETArr["offset"] = $currentOffset + $postsPerPage;
				echo "<li><a title=\"Next page\" href=\"./?" . http_build_query($secondTempGETArr) . "\">&gt;</a></li>\n";
			}
			// Last page
			$secondTempGETArr["offset"] = ($totalPagesAmount - 1) * $postsPerPage;
			echo "<li><a title=\"Last page\" href=\"./?" . http_build_query($secondTempGETArr) . "\">Last</a></li>\n";
		}
	?>
	</menu>
	<div class="postsearchcolumn">
		<h3 style="margin-top: 4px; margin-bottom: 4px;">Search</h3>
		<form class="basicform" action="." accept-charset="UTF-8" method="get">
			<input type="hidden" name="do" value="search_posts">
			<input type="text" name="query" autocomplete="on" <?php if (isset($_REQUEST["query"])) { echo "value=\"" . $_REQUEST["query"] . "\""; } ?>>
			<input type="submit" value="Search">
		</form>
	</div>
	<div class="postlist">
		<?php
			if ($requestedPostsResult && $requestedPostsResult["total_amount"]) {
				foreach ($requestedPostsResult["data"] as $postData)
					echo GenPostEntry($postData);
			} else {
				echo "<h2 style=\"color: gray; font-style: italic;\">Nothing found!</h2>";
			}
		?>
	</div>
</div>