refactor: use proper dependency tracking

As you can see, there is quite a tangled web of dependency
in this project, which is something to look at later.

Fix #33

src/class/dashboard/init.php

@@ -7,6 +7,9 @@
  * @since  1.5.0
  */
 
+require_once dirname( __FILE__, 2) . '/settings.php';
+require_once dirname( __FILE__ ) . '/subpage-main.php';
+
 /**
  * Handles the Settings interface of the Plugin.
  *

src/class/dashboard/layout.php

@@ -14,6 +14,11 @@
  * @since 2.5.5  Bugfix: Stylesheets: minify to shrink the carbon footprint, increase speed and implement best practice, thanks to @docteurfitness issue report.
  */
  
+require_once dirname( __FILE__, 2) . '/config.php';
+require_once dirname( __FILE__, 2) . '/convert.php';
+require_once dirname( __FILE__, 2) . '/settings.php';
+require_once dirname( __FILE__ ) . '/init.php';
+
 /**
  * Layout Engine for the administration dashboard.
  *

src/class/dashboard/subpage-main.php

@@ -41,6 +41,12 @@
  * @link https://wordpress.org/support/topic/warning-unbalanced-footnote-start-tag-short-code-before/
  */
  
+require_once dirname( __FILE__, 2) . '/config.php';
+require_once dirname( __FILE__, 2) . '/convert.php';
+require_once dirname( __FILE__, 2) . '/settings.php';
+require_once dirname( __FILE__, 2) . '/template.php';
+require_once dirname( __FILE__ ) . '/layout.php';
+
 /**
  * Displays and handles all Settings of the Plugin.
  *

src/class/init.php

@@ -6,6 +6,16 @@
  * @since 1.5.0
  */
 
+require_once dirname( __FILE__ ) . '/config.php';
+require_once dirname( __FILE__ ) . '/convert.php';
+require_once dirname( __FILE__ ) . '/hooks.php';
+require_once dirname( __FILE__ ) . '/language.php';
+require_once dirname( __FILE__ ) . '/settings.php';
+require_once dirname( __FILE__ ) . '/task.php';
+require_once dirname( __FILE__ ) . '/wysiwyg.php';
+require_once dirname( __FILE__ ) . '/dashboard/init.php';
+require_once dirname( __FILE__ ) . '/widgets/reference-container.php';
+
 /**
  * Provides an entry point to the Plugin.
  *

src/class/language.php

@@ -10,6 +10,8 @@
  * @since 2.1.6  Bugfix: Localization: conform to WordPress plugin language file name scheme, thanks to @nikelaos bug report.
  */
 
+require_once dirname( __FILE__ ) . '/config.php';
+
 /**
  * Loads text domain of current or default language for localization.
  *

src/class/settings.php

@@ -13,6 +13,8 @@
  * @since 2.1.3  Bugfix: Hooks: disable the_excerpt hook by default to fix issues, thanks to @nikelaos bug report.
  */
 
+require_once dirname( __FILE__ ) . '/convert.php';
+
 /**
  * Loads the settings values, sets to default values if undefined.
  *

src/class/task.php

@@ -87,6 +87,11 @@ if ( ! defined( 'ABSPATH' ) ) {
 	die;
 }
 
+require_once dirname( __FILE__ ) . '/config.php';
+require_once dirname( __FILE__ ) . '/convert.php';
+require_once dirname( __FILE__ ) . '/settings.php';
+require_once dirname( __FILE__ ) . '/template.php';
+
 /**
  * Searches and replaces the footnotes and generates the reference container.
  *

src/class/widgets/reference-container.php

@@ -7,6 +7,10 @@
  * @since 1.5.0
  */
 
+require_once dirname( __FILE__, 2 ) . '/config.php';
+require_once dirname( __FILE__, 2 ) . '/settings.php';
+require_once dirname( __FILE__ ) . '/base.php';
+
 /**
  * Registers a Widget to put the Reference Container to the widget area.
  *

src/class/wysiwyg.php

@@ -7,6 +7,10 @@
  * @since 1.5.0
  */
 
+require_once dirname( __FILE__ ) . '/config.php';
+require_once dirname( __FILE__ ) . '/settings.php';
+require_once dirname( __FILE__ ) . '/template.php';
+
 /**
  * Handles the WSYIWYG-Buttons.
  *

src/footnotes.php

@@ -50,11 +50,11 @@ const PRODUCTION_ENV = false;
  */
 const PLUGIN_ENTRYPOINT = 'footnotes/footnotes.php';
 
-// Get all common classes and functions.
-require_once dirname( __FILE__ ) . '/includes.php';
+// Requires the core Plugin file.
+require_once dirname( __FILE__ ) . '/class/init.php';
 
 // Add links to the ‘Installed Plugins’ page on the WordPress dashboard.
-add_filter( "plugin_action_links_" . PLUGIN_ENTRYPOINT, array( 'Footnotes_Hooks', 'get_plugin_links' ), 10, 2 );
+add_filter( 'plugin_action_links_' . PLUGIN_ENTRYPOINT, array( 'Footnotes_Hooks', 'get_plugin_links' ), 10, 2 );
 
 // Initialize the Plugin.
 $g_obj_mci_footnotes = new Footnotes();

src/includes.php

@@ -1,39 +0,0 @@
-<?php
-/**
- * Includes all common files.
- *
- * @filesource
- * @package footnotes
- * @since 1.5.0 14.09.14 13:40
- */
-
-/**
- * Requires (`require_once`) all `*.php` files inside a specific Directory.
- *
- * @author Stefan Herndler
- * @since  1.5.0
- * @param string $p_str_directory Absolute Directory path to lookup for `*.php` files.
- */
-function mci_footnotes_require_php_files( $p_str_directory ) {
-	// Append slash at the end of the Directory if not exist.
-	if ( '/' !== substr( $p_str_directory, -1 ) ) {
-		$p_str_directory .= '/';
-	}
-	// Get all PHP files inside Directory.
-	$l_arr_files = scandir( $p_str_directory );
-	// Iterate through each class.
-	foreach ( $l_arr_files as $l_str_file_name ) {
-		// Skip all non-PHP files.
-		if ( '.php' !== strtolower( substr( $l_str_file_name, -4 ) ) ) {
-			continue;
-		}
-		// phpcs:disable Generic.Commenting.DocComment.MissingShort
-		/** @noinspection PhpIncludeInspection */
-		require_once $p_str_directory . $l_str_file_name;
-		// phpcs:enable
-	}
-}
-
-mci_footnotes_require_php_files( dirname( __FILE__ ) . '/class' );
-mci_footnotes_require_php_files( dirname( __FILE__ ) . '/class/dashboard' );
-mci_footnotes_require_php_files( dirname( __FILE__ ) . '/class/widgets' );