NOISSUE mark used accounts/sessions in selection menus

api/logic/minecraft/auth/AuthSession.h

@@ -6,6 +6,8 @@
 
 #include "multimc_logic_export.h"
 
+class MojangAccount;
+
 struct User
 {
 	QString id;
@@ -46,6 +48,7 @@ struct MULTIMC_LOGIC_EXPORT AuthSession
 	bool auth_server_online = false;
 	// Did the user request online mode?
 	bool wants_online = true;
+	std::shared_ptr<MojangAccount> m_accountPtr;
 };
 
 typedef std::shared_ptr<AuthSession> AuthSessionPtr;

api/logic/minecraft/auth/MojangAccount.cpp

@@ -275,4 +275,26 @@ void MojangAccount::fillSession(AuthSessionPtr session)
 		session->session = "-";
 	}
 	session->u = user();
+	session->m_accountPtr = shared_from_this();
+}
+
+void MojangAccount::decrementUses()
+{
+	Usable::decrementUses();
+	if(!isInUse())
+	{
+		emit changed();
+		qWarning() << "Account" << m_username << "is no longer in use.";
+	}
+}
+
+void MojangAccount::incrementUses()
+{
+	bool wasInUse = isInUse();
+	Usable::incrementUses();
+	if(!wasInUse)
+	{
+		emit changed();
+		qWarning() << "Account" << m_username << "is now in use.";
+	}
 }

api/logic/minecraft/auth/MojangAccount.h

@@ -24,6 +24,7 @@
 
 #include <memory>
 #include "AuthSession.h"
+#include "Usable.h"
 
 #include "multimc_logic_export.h"
 
@@ -60,7 +61,10 @@ enum AccountStatus
  * Said information may include things such as that account's username, client token, and access
  * token if the user chose to stay logged in.
  */
-class MULTIMC_LOGIC_EXPORT MojangAccount : public QObject
+class MULTIMC_LOGIC_EXPORT MojangAccount :
+	public QObject,
+	public Usable,
+	public std::enable_shared_from_this<MojangAccount>
 {
 	Q_OBJECT
 public: /* construction */
@@ -157,6 +161,11 @@ protected: /* variables */
 	// current task we are executing here
 	std::shared_ptr<YggdrasilTask> m_currentTask;
 
+protected: /* methods */
+
+	void incrementUses() override;
+	void decrementUses() override;
+
 private
 slots:
 	void authSucceeded();