#pragma once

#include "session.hpp"

#include <QJsonObject>
#include <QObject>
#include <QVariantList>

namespace ZShell {

class Chat;

class ChatStore : public QObject {
	Q_OBJECT
	QML_ANONYMOUS

	Q_PROPERTY(int count READ count NOTIFY countChanged)
	Q_PROPERTY(QVariantList values READ values NOTIFY valuesChanged)

	public:
	explicit ChatStore(QObject* parent = nullptr);

	[[nodiscard]] int count() const;
	[[nodiscard]] QVariantList values() const;
	[[nodiscard]] ChatSession* at(int index) const;

	Q_INVOKABLE ChatSession* insert(int index = -1);
	Q_INVOKABLE void remove(int index);
	Q_INVOKABLE void remove(ChatSession* chat);
	Q_INVOKABLE void move(int from, int to);
	Q_INVOKABLE void clear();

	[[nodiscard]] ChatSession* sessionById(const QString& id);
	void persist(ChatSession* session);

	Q_SIGNALS:
	void countChanged();
	void valuesChanged();

	private:
	void load();
	void migrateLegacy();
	void sortAndNotify();
	void removeSession(ChatSession* session);
	bool isStreaming(ChatSession* session) const;
	void notify(const QList<ChatSession*>& before);

	QList<ChatSession*> m_sessions;

	static QString dir();
	static QString pathFor(const QString& id);
	static bool writeFile(const QString& path, const QJsonObject& doc);

	friend class Chat;
};

} // namespace ZShell