From 68acff62101e1c302e55befa6d526c46f15da464 Mon Sep 17 00:00:00 2001
From: Mischa POSLAWSKY <perl@shiar.org>
Date: Sun, 6 Dec 2020 08:40:32 +0100
Subject: [PATCH] mail: navigation links to earlier files

---
 mail/index.php           | 13 ++++++++++++-
 widget/login/commits.php |  3 ++-
 widget/nav.php           |  2 +-
 3 files changed, 15 insertions(+), 3 deletions(-)

diff --git a/mail/index.php b/mail/index.php
index d4d4c29..d8195f6 100644
--- a/mail/index.php
+++ b/mail/index.php
@@ -60,7 +60,13 @@ $rows = glob("$mailbox/*");
 if (!$rows) {
 	throw new Exception('Kon inbox niet openen.');
 }
-array_splice($rows, 0, -50);
+
+$nav = [
+	'start' => $_GET['start'] ?? 0,
+	'n'     => $_GET['n'] ?? 10,
+	'total' => count($rows),
+];
+$rows = array_slice(array_reverse($rows), $nav['start'], $nav['n']);
 
 ob_start();
 print '<ul>';
@@ -86,4 +92,9 @@ foreach (array_reverse($rows) as $filename) {
 	print "</a></li>\n";
 }
 print "</ul>\n";
+
+print $Page->widget('nav', [
+	"start=$nav[start]", "n=$nav[n]", "total=$nav[total]",
+]);
+
 $Page->place['maillist'] = ob_get_clean();
diff --git a/widget/login/commits.php b/widget/login/commits.php
index c2d6449..0327f3f 100644
--- a/widget/login/commits.php
+++ b/widget/login/commits.php
@@ -26,7 +26,8 @@ if ( $log = popen($gitcmd, 'r') ) {
 	print "</ul>\n\n";
 	pclose($log);
 
-	$navoptions = ["start=$offset", "n=$pagesize", "total=$lines"];
+	$limit = $offset + $lines + 1; # assume one more
+	$navoptions = ["start=$offset", "n=$pagesize", "total=$limit"];
 	if ($Page->handler != 'login/commits') {
 		$navoptions[] = 'link=login/commits';
 	}
diff --git a/widget/nav.php b/widget/nav.php
index 38b5714..8cf4b8b 100644
--- a/widget/nav.php
+++ b/widget/nav.php
@@ -6,7 +6,7 @@ if (isset($Page->place['link'])) {
 
 $nav = [];
 $nav[] = sprintf('Pagina %d', ceil($Page->place['start'] / $Page->place['n']) + 1);
-if ($Page->place['total'] >= $Page->place['n']) {
+if ($Page->place['total'] > $Page->place['start'] + $Page->place['n']) {
 	$nav[] = sprintf('<a href="%sstart=%d">%s</a>', $navbase, $Page->place['start'] + $Page->place['n'], 'eerder');
 }
 if ($Page->place['start'] > $Page->place['n']) {
-- 
2.30.0