1 files changed, 144 insertions, 0 deletions
diff --git a/bootstrap/comments/backend/classes/javascriptbuild.php b/bootstrap/comments/backend/classes/javascriptbuild.php
new file mode 100644
index 0000000..14fedcd
--- /dev/null
+++ b/bootstrap/comments/backend/classes/javascriptbuild.php
@@ -0,0 +1,144 @@
+<?php namespace HashOver;
+
+// Copyright (C) 2018 Jacob Barkdull
+// This file is part of HashOver.
+//
+// HashOver is free software: you can redistribute it and/or modify
+// it under the terms of the GNU Affero General Public License as
+// published by the Free Software Foundation, either version 3 of the
+// License, or (at your option) any later version.
+//
+// HashOver is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU Affero General Public License for more details.
+//
+// You should have received a copy of the GNU Affero General Public License
+// along with HashOver.  If not, see <http://www.gnu.org/licenses/>.
+
+
+class JavaScriptBuild
+{
+	protected $directory;
+	protected $files = array ();
+
+	public function __construct ($directory = '.')
+	{
+		$this->changeDirectory ($directory);
+	}
+
+	public function changeDirectory ($directory = '.')
+	{
+		$this->directory = trim ($directory, '/') . '/';
+	}
+
+	protected function addFile ($file)
+	{
+		// Add file to files array if it isn't already present
+		if (!in_array ($file, $this->files, true)) {
+			$this->files[] = $file;
+		}
+	}
+
+	protected function addDependencies ($file, array $dependencies)
+	{
+		// Add each dependency to files array
+		foreach ($dependencies as $dependency) {
+			$dependency = realpath(__DIR__ . '/' . '/../../' . $this->directory) . '/' . $dependency;
+
+			// Check if the file exists
+			if (file_exists ($file)) {
+				// If so, add file to files array
+				$this->addFile ($dependency);
+			} else {
+				// If not, throw exception on failure
+				$exception = '"%s" depends on "%s" but it does not exist.';
+				$exception = sprintf ($exception, $file, $dependency);
+
+				throw new \Exception ($exception);
+			}
+		}
+
+		return true;
+	}
+
+	protected function includeFile ($file)
+	{
+		// Attempt to read JavaScript file
+		$file = @file_get_contents ($file);
+
+		// Check if the file read successfully
+		if ($file !== false) {
+			// If so, return the contents
+			return trim ($file);
+		}
+
+		// Otherwise throw exception
+		throw new \Exception (
+			sprintf ('Unable to include "%s"', $file)
+		);
+	}
+
+	public function registerFile ($file, array $options = array ())
+	{
+		$file = realpath(__DIR__ . '/' . '/../../' . $this->directory) . '/' . $file;
+
+		if (!empty ($options)) {
+			// Check if there is an include condition
+			if (isset ($options['include'])) {
+				// If so, return void if include is false
+				if ($options['include'] === false) {
+					return;
+				}
+			}
+
+			// Add optional dependencies to files array
+			if (!empty ($options['dependencies'])) {
+				$dependencies = $options['dependencies'];
+				$this->addDependencies ($file, $dependencies);
+			}
+		}
+
+		// Check if the file exists
+		if (file_exists ($file)) {
+			// If so, add file to files array
+			$this->addFile ($file);
+		} else {
+			// If not, throw exception
+			throw new \Exception ('"' . $file . '" does not exist.');
+		}
+
+		return true;
+	}
+
+	public function build ($minify = false, $minify_level = 0)
+	{
+		// Array for included JavaScript files
+		$files = array ();
+
+		// Attempt to include registered JavaScript files
+		foreach ($this->files as $file) {
+			$files[] = $this->includeFile ($file);
+		}
+
+		// Join the included JavaScript files
+		$javascript = implode (PHP_EOL . PHP_EOL, $files);
+
+		// Minify the JavaScript if told to
+		if (!isset ($_GET['hashover-unminified'])) {
+			if ($minify === true and $minify_level > 0) {
+				// Instantiate JavaScript minification class
+				$minifier = new JavaScriptMinifier ();
+
+				// Minify JavaScript build result
+				$minified = $minifier->minify ($javascript, $minify_level);
+
+				// Set minified result as JavaScript output
+				$javascript = $minified;
+			}
+		}
+
+		// Return normal JavaScript code
+		return $javascript;
+	}
+}