From f719c020502c37d8bacf2b85b1776e1a5b893f1e Mon Sep 17 00:00:00 2001
From: slawkens <slawkens@gmail.com>
Date: Thu, 25 Jan 2024 23:06:10 +0100
Subject: [PATCH] Feature: auto-load themes (previously templates) from
 plugins/*/themes/*

---
 system/functions.php    |  4 ++++
 system/libs/plugins.php | 26 ++++++++++++++++++++++++++
 system/template.php     |  9 ++++++++-
 3 files changed, 38 insertions(+), 1 deletion(-)

diff --git a/system/functions.php b/system/functions.php
index 2a052363..5c18b67c 100644
--- a/system/functions.php
+++ b/system/functions.php
@@ -798,6 +798,10 @@ function get_templates()
 			$ret[] = $file;
 	}
 
+	foreach (Plugins::getThemes() as $name => $path) {
+		$ret[] = $name;
+	}
+
 	return $ret;
 }
 
diff --git a/system/libs/plugins.php b/system/libs/plugins.php
index eb67c0d3..9f34536d 100644
--- a/system/libs/plugins.php
+++ b/system/libs/plugins.php
@@ -147,6 +147,32 @@ class Plugins {
 		return $routes;
 	}
 
+	public static function getThemes()
+	{
+		$cache = Cache::getInstance();
+		if ($cache->enabled()) {
+			$tmp = '';
+			if ($cache->fetch('plugins_themes', $tmp)) {
+				return unserialize($tmp);
+			}
+		}
+
+		$themes = [];
+		$pluginThemes = glob(PLUGINS . '*/themes/*', GLOB_ONLYDIR);
+		foreach ($pluginThemes as $path) {
+			$path = str_replace(PLUGINS, 'plugins/', $path);
+			$name = pathinfo($path, PATHINFO_FILENAME);
+
+			$themes[$name] = $path;
+		}
+
+		if ($cache->enabled()) {
+			$cache->set('plugins_themes', serialize($themes), 600);
+		}
+
+		return $themes;
+	}
+
 	public static function getHooks()
 	{
 		$cache = Cache::getInstance();
diff --git a/system/template.php b/system/template.php
index 0a8775b0..0a47aa90 100644
--- a/system/template.php
+++ b/system/template.php
@@ -46,7 +46,14 @@ if(setting('core.template_allow_change'))
 		}
 	}
 }
-$template_path = 'templates/' . $template_name;
+
+$themes = Plugins::getThemes();
+if (isset($themes[$template_name])) {
+	$template_path = $themes[$template_name];
+}
+else {
+	$template_path = 'templates/' . $template_name;
+}
 
 if(file_exists(BASE . $template_path . '/index.php')) {
 	$template_index = 'index.php';