Move settings into a separate JSON file.

This will unfortunately mean losing your commands, but they can be restored by
converting the old commands.txt format into the commands.json file

Fix #372

src/controllers/commands/CommandController.hpp

@@ -1,14 +1,16 @@
 #pragma once
 
+#include "common/ChatterinoSetting.hpp"
+#include "common/SignalVector.hpp"
 #include "common/Singleton.hpp"
+#include "controllers/commands/Command.hpp"
 
 #include <QMap>
+#include <pajlada/settings.hpp>
+
 #include <memory>
 #include <mutex>
 
-#include "common/SignalVector.hpp"
-#include "controllers/commands/Command.hpp"
-
 namespace chatterino {
 
 class Settings;
@@ -20,26 +22,31 @@ class CommandModel;
 class CommandController final : public Singleton
 {
 public:
-    CommandController();
+    UnsortedSignalVector<Command> items_;
 
     QString execCommand(const QString &text, std::shared_ptr<Channel> channel,
                         bool dryRun);
     QStringList getDefaultTwitchCommandList();
 
-    virtual void initialize(Settings &settings, Paths &paths) override;
+    virtual void initialize(Settings &, Paths &paths) override;
     virtual void save() override;
 
     CommandModel *createModel(QObject *parent);
 
-    UnsortedSignalVector<Command> items;
-
 private:
     void load(Paths &paths);
 
     QMap<QString, Command> commandsMap_;
 
     std::mutex mutex_;
-    QString filePath_;
+
+    std::shared_ptr<pajlada::Settings::SettingManager> sm_;
+    // Because the setting manager is not initialized until the initialize
+    // function is called (and not in the constructor), we have to
+    // late-initialize the setting, which is why we're storing it as a
+    // unique_ptr
+    std::unique_ptr<pajlada::Settings::Setting<std::vector<Command>>>
+        commandsSetting_;
 
     QString execCustomCommand(const QStringList &words, const Command &command);
 };