From e48da78c29e51840da24c33b4fb39dbb7723afec Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Petr=20Mr=C3=A1zek?= <peterix@gmail.com>
Date: Mon, 27 Dec 2021 17:24:24 +0100
Subject: [PATCH] WIP junk

---
 launcher/Application.cpp         |  10 +++
 launcher/Application.h           |   2 +
 launcher/java/RuntimeManager.cpp |   2 +
 launcher/java/RuntimeManager.h   | 104 +++++++++++++++++++++++++++++++
 4 files changed, 118 insertions(+)
 create mode 100644 launcher/java/RuntimeManager.cpp
 create mode 100644 launcher/java/RuntimeManager.h

diff --git a/launcher/Application.cpp b/launcher/Application.cpp
index 9c965829..7a4cb5a8 100644
--- a/launcher/Application.cpp
+++ b/launcher/Application.cpp
@@ -840,6 +840,16 @@ Application::Application(int &argc, char **argv) : QApplication(argc, argv)
         qDebug() << "<> Accounts loaded.";
     }
 
+    // and java runtimes
+    {
+        m_runtimes.reset(new RuntimeManager(this));
+        qDebug() << "Initializing runtimes...";
+        m_runtimes->setListFilePath("runtimes.json", true);
+        m_runtimes->loadLocal();
+        m_runtimes->fillQueue();
+        qDebug() << "<> Runtimes loading.";
+    }
+
     // init the http meta cache
     {
         m_metacache.reset(new HttpMetaCache("metacache"));
diff --git a/launcher/Application.h b/launcher/Application.h
index 1b2a2b60..ccd11348 100644
--- a/launcher/Application.h
+++ b/launcher/Application.h
@@ -24,6 +24,7 @@ class HttpMetaCache;
 class SettingsObject;
 class InstanceList;
 class AccountList;
+class RuntimeManager;
 class IconList;
 class QNetworkAccessManager;
 class JavaInstallList;
@@ -185,6 +186,7 @@ private:
 
     shared_qobject_ptr<UpdateChecker> m_updateChecker;
     shared_qobject_ptr<AccountList> m_accounts;
+    shared_qobject_ptr<RuntimeManager> m_runtimes;
 
     shared_qobject_ptr<HttpMetaCache> m_metacache;
     shared_qobject_ptr<Meta::Index> m_metadataIndex;
diff --git a/launcher/java/RuntimeManager.cpp b/launcher/java/RuntimeManager.cpp
new file mode 100644
index 00000000..0e4a23e4
--- /dev/null
+++ b/launcher/java/RuntimeManager.cpp
@@ -0,0 +1,2 @@
+#include "RuntimeManager.h"
+
diff --git a/launcher/java/RuntimeManager.h b/launcher/java/RuntimeManager.h
new file mode 100644
index 00000000..24291d27
--- /dev/null
+++ b/launcher/java/RuntimeManager.h
@@ -0,0 +1,104 @@
+/* Copyright 2013-2021 MultiMC Contributors
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#pragma once
+
+#include <QObject>
+#include <QVariant>
+#include <QSharedPointer>
+
+/*!
+ * List of available Mojang accounts.
+ * This should be loaded in the background by MultiMC on startup.
+ */
+class RuntimeManager : public QObject
+{
+    Q_OBJECT
+public:
+    explicit RuntimeManager(QObject *parent = 0);
+    virtual ~RuntimeManager() noexcept;
+
+    const RuntimePtr at(int i) const;
+    int count() const;
+
+    void addRuntime(const RuntimePtr runtime);
+    void removeRuntime(QString runtimeId);
+
+    // requesting a refresh pushes it to the front of the queue
+    void requestRefresh(QString runtimeId);
+    // queuing a refresh will let it go to the back of the queue (unless it's somewhere inside the queue already)
+    void queueRefresh(QString runtimeId);
+
+    /*!
+     * Sets the path to load/save the list file from/to.
+     * If autosave is true, this list will automatically save to the given path whenever it changes.
+     * THIS FUNCTION DOES NOT LOAD THE LIST. If you set autosave, be sure to call loadList() immediately
+     * after calling this function to ensure an autosaved change doesn't overwrite the list you intended
+     * to load.
+     */
+    void setListFilePath(QString path, bool autosave = false);
+
+    bool loadLocal();
+    bool saveLocal();
+    bool isActive() const;
+
+protected:
+    void beginActivity();
+    void endActivity();
+
+private:
+    const char* m_name;
+    uint32_t m_activityCount = 0;
+signals:
+    void listChanged();
+    void listActivityChanged();
+    void defaultAccountChanged();
+    void activityChanged(bool active);
+
+public slots:
+    void runtimeChanged();
+    void runtimeActivityChanged(bool active);
+    void fillQueue();
+
+private slots:
+    void tryNext();
+
+    void taskSucceeded();
+    void taskFailed(QString reason);
+
+protected:
+    QList<QString> m_refreshQueue;
+    QTimer *m_refreshTimer;
+    QTimer *m_nextTimer;
+    shared_qobject_ptr<AccountTask> m_currentTask;
+
+    /*!
+     * Called whenever the list changes.
+     * This emits the listChanged() signal and autosaves the list (if autosave is enabled).
+     */
+    void onListChanged();
+
+    QList<RuntimePtr> m_data;
+
+    //! Path to the account list file. Empty string if there isn't one.
+    QString m_listFilePath;
+
+    /*!
+     * If true, the account list will automatically save to the account list path when it changes.
+     * Ignored if m_listFilePath is blank.
+     */
+    bool m_autosave = false;
+};
+