feat: Add configuration manager (#270)

settings/ConfigurationManager.hpp

@@ -0,0 +1,78 @@
+/* 
+ * Copyright (C) 2024-2025 Petr Mironychev
+ *
+ * This file is part of QodeAssist.
+ *
+ * QodeAssist is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * QodeAssist is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with QodeAssist. If not, see <https://www.gnu.org/licenses/>.
+ */
+
+#pragma once
+
+#include <QObject>
+#include <QString>
+#include <QVector>
+
+namespace QodeAssist::Settings {
+
+enum class ConfigurationType { CodeCompletion, Chat, QuickRefactor };
+
+inline constexpr int CONFIGURATION_FORMAT_VERSION = 1;
+
+struct AIConfiguration
+{
+    QString id;
+    QString name;
+    QString provider;
+    QString model;
+    QString templateName;
+    QString url;
+    QString endpointMode;
+    QString customEndpoint;
+    ConfigurationType type;
+    int formatVersion = CONFIGURATION_FORMAT_VERSION;
+};
+
+class ConfigurationManager : public QObject
+{
+    Q_OBJECT
+
+public:
+    static ConfigurationManager &instance();
+
+    bool loadConfigurations(ConfigurationType type);
+    bool saveConfiguration(const AIConfiguration &config);
+    bool deleteConfiguration(const QString &id, ConfigurationType type);
+
+    QVector<AIConfiguration> configurations(ConfigurationType type) const;
+    AIConfiguration getConfigurationById(const QString &id, ConfigurationType type) const;
+
+    QString getConfigurationDirectory(ConfigurationType type) const;
+
+signals:
+    void configurationsChanged(ConfigurationType type);
+
+private:
+    explicit ConfigurationManager(QObject *parent = nullptr);
+    ~ConfigurationManager() override = default;
+
+    bool ensureDirectoryExists(ConfigurationType type) const;
+    QString configurationTypeToString(ConfigurationType type) const;
+
+    QVector<AIConfiguration> m_ccConfigurations;
+    QVector<AIConfiguration> m_caConfigurations;
+    QVector<AIConfiguration> m_qrConfigurations;
+};
+
+} // namespace QodeAssist::Settings
+