1 files changed, 85 insertions, 0 deletions
diff --git a/src/web/core/core.php b/src/web/core/core.php
new file mode 100644
index 0000000..d71870e
--- /dev/null
+++ b/src/web/core/core.php
@@ -0,0 +1,85 @@
+<?php /* Copyright (c) 2024 Freya Murphy */
+
+/**
+ * Core functions needed everywhere
+ */
+abstract class Core {
+
+	private static ?DatabaseHelper $db = NULL;
+
+	/**
+	 * Loads the database
+	 */
+	public static function db(): DatabaseHelper
+	{
+		if (!Component::$db)
+			Component::$db = new DatabaseHelper();
+		return Component::$db;
+	}
+
+	/**
+	 * Gets the stamp for a asset path
+	 * @param string $path
+	 */
+	public static function asset_stamp(string $path): int
+	{
+		$path = PUBLIC_ROOT . '/' . $path;
+		return @filemtime($path);
+	}
+
+	/**
+	 * Gets a full path url from a relative path
+	 * @param string $path
+	 * @param bool $timestamp
+ 	 */
+	public static function get_url(string $path, bool $timestamp = FALSE): string
+	{
+		$host = $_SERVER['HTTP_HOST'];
+
+		if (ENVIRONMENT == 'production')
+			$host = lang('domain');
+
+		$base = lang('base_path');
+		$url = "http://{$host}{$base}{$path}";
+		if ($timestamp) {
+			$time = @filemtime(PHP_ROOT . '/' . $path);
+			$url .= "?timestamp={$time}";
+		}
+		return $url;
+	}
+
+	/**
+	 * Loads a css html link
+	 * @param string $path - the path to the css file
+	 */
+	public static function link_css(string $path): string
+	{
+		$stamp = Core::asset_stamp($path);
+		$href = Core::get_url("public/{$path}?stamp={$stamp}");
+		return '<link rel="stylesheet" href="'. $href .'">';
+	}
+
+	/**
+	 * Loads a css html link
+	 * @param string $path - the path to the css file
+	 */
+	public static function embed_css(string $path): string
+	{
+		$file = PUBLIC_ROOT . '/' . $path;
+		if (file_exists($file)) {
+			$text = file_get_contents($file);
+			return "<style>{$text}</style>";
+		} else {
+			return "";
+		}
+	}
+
+	/**
+	 * Formats a ISO date
+	 * @param $iso_date the ISO date
+	 */
+	public static function format_date(string $iso_date): string
+	{
+		return date("Y-m-d D H:m", strtotime($iso_date));
+	}
+}