From 44b8efd9bc78437135c3889092043230a6116141 Mon Sep 17 00:00:00 2001
From: Danila Fedorin <danila.fedorin@gmail.com>
Date: Wed, 2 Aug 2017 19:06:16 -0700
Subject: [PATCH] Actually disable loading the plugin functions in the
 PluginManager.

---
 src/main/java/org/nwapw/abacus/Abacus.java    |  2 +-
 .../nwapw/abacus/plugin/PluginManager.java    | 22 ++++++++++++++++---
 2 files changed, 20 insertions(+), 4 deletions(-)

diff --git a/src/main/java/org/nwapw/abacus/Abacus.java b/src/main/java/org/nwapw/abacus/Abacus.java
index bf8328f..649bb1a 100644
--- a/src/main/java/org/nwapw/abacus/Abacus.java
+++ b/src/main/java/org/nwapw/abacus/Abacus.java
@@ -57,7 +57,7 @@ public class Abacus {
      * Creates a new instance of the Abacus calculator.
      */
     public Abacus() {
-        pluginManager = new PluginManager();
+        pluginManager = new PluginManager(this);
         numberReducer = new NumberReducer(this);
         configuration = new Configuration(CONFIG_FILE);
         configuration.saveTo(CONFIG_FILE);
diff --git a/src/main/java/org/nwapw/abacus/plugin/PluginManager.java b/src/main/java/org/nwapw/abacus/plugin/PluginManager.java
index 1c8748e..8450bf7 100644
--- a/src/main/java/org/nwapw/abacus/plugin/PluginManager.java
+++ b/src/main/java/org/nwapw/abacus/plugin/PluginManager.java
@@ -1,5 +1,6 @@
 package org.nwapw.abacus.plugin;
 
+import org.nwapw.abacus.Abacus;
 import org.nwapw.abacus.function.Function;
 import org.nwapw.abacus.function.Operator;
 import org.nwapw.abacus.number.NumberInterface;
@@ -52,11 +53,17 @@ public class PluginManager {
      * The list of plugin listeners attached to this instance.
      */
     private Set<PluginListener> listeners;
+    /**
+     * The abacus instance used to access other
+     * components of the application.
+     */
+    private Abacus abacus;
 
     /**
      * Creates a new plugin manager.
      */
-    public PluginManager() {
+    public PluginManager(Abacus abacus) {
+        this.abacus = abacus;
         loadedPluginClasses = new HashSet<>();
         plugins = new HashSet<>();
         cachedFunctions = new HashMap<>();
@@ -160,8 +167,13 @@ public class PluginManager {
      * Loads all the plugins in the PluginManager.
      */
     public void load() {
-        for (Plugin plugin : plugins) plugin.enable();
+        Set<String> disabledPlugins = abacus.getConfiguration().getDisabledPlugins();
         for (Plugin plugin : plugins) {
+            if(disabledPlugins.contains(plugin.getClass().getName())) continue;
+            plugin.enable();
+        }
+        for (Plugin plugin : plugins) {
+            if(disabledPlugins.contains(plugin.getClass().getName())) continue;
             allFunctions.addAll(plugin.providedFunctions());
             allOperators.addAll(plugin.providedOperators());
             allNumbers.addAll(plugin.providedNumbers());
@@ -173,7 +185,11 @@ public class PluginManager {
      * Unloads all the plugins in the PluginManager.
      */
     public void unload() {
-        for (Plugin plugin : plugins) plugin.disable();
+        Set<String> disabledPlugins = abacus.getConfiguration().getDisabledPlugins();
+        for (Plugin plugin : plugins) {
+            if(disabledPlugins.contains(plugin.getClass().getName())) continue;
+            plugin.disable();
+        }
         allFunctions.clear();
         allOperators.clear();
         allNumbers.clear();