initial commit for llm chat tab in sidebar

2026-08-20 00:27:48 +02:00
parent d3e61efd86
commit 47bab21e22
22 changed files with 2085 additions and 9 deletions
@@ -0,0 +1,108 @@
+#pragma once
+
+#include <QByteArray>
+#include <QList>
+#include <QNetworkAccessManager>
+#include <QObject>
+#include <QString>
+#include <QStringList>
+#include <QtQml>
+
+#include "chatstore.hpp"
+
+class QQmlEngine;
+class QJSEngine;
+class QNetworkReply;
+
+namespace ZShell {
+
+class Chat : public QObject {
+	Q_OBJECT
+	QML_ELEMENT
+	QML_SINGLETON
+
+	Q_PROPERTY(bool busy READ busy NOTIFY busyChanged)
+	Q_PROPERTY(QString endpoint READ endpoint NOTIFY endpointChanged)
+	Q_PROPERTY(QString model READ model NOTIFY modelChanged)
+	Q_PROPERTY(QStringList availableModels READ availableModels NOTIFY availableModelsChanged)
+	Q_PROPERTY(int contextSize READ contextSize NOTIFY contextSizeChanged)
+	Q_PROPERTY(QString lastError READ lastError NOTIFY lastErrorChanged)
+	Q_PROPERTY(ChatStore* chats READ chats CONSTANT)
+	Q_PROPERTY(QString streamingChatId READ streamingChatId NOTIFY streamingChatIdChanged)
+
+	public:
+	explicit Chat(QObject* parent = nullptr);
+	~Chat();
+
+	[[nodiscard]] bool busy() const { return m_busy; }
+	[[nodiscard]] QString endpoint() const { return m_endpoint; }
+	[[nodiscard]] QString model() const { return m_model; }
+	[[nodiscard]] QStringList availableModels() const { return m_availableModels; }
+	[[nodiscard]] int contextSize() const { return m_contextSize; }
+	[[nodiscard]] int lastTokenCount() const { return m_lastTokenCount; }
+	[[nodiscard]] QString lastError() const { return m_lastError; }
+	[[nodiscard]] ChatStore* chats() const { return m_store; }
+	[[nodiscard]] QString streamingChatId() const { return m_streamingChatId; }
+	[[nodiscard]] ChatSession* streamingSession() const { return m_active; }
+
+	Q_INVOKABLE void send(const QString& chatId, const QString& content);
+	Q_INVOKABLE void stop();
+	Q_INVOKABLE void clearConversation(const QString& chatId);
+	Q_INVOKABLE void dismissError();
+	Q_INVOKABLE void refreshModels();
+	Q_INVOKABLE void selectModel(const QString& id);
+
+	static Chat* create(QQmlEngine*, QJSEngine*);
+
+	Q_SIGNALS:
+	void busyChanged();
+	void endpointChanged();
+	void modelChanged();
+	void availableModelsChanged();
+	void contextSizeChanged();
+	void errorOccurred(const QString& message);
+	void lastErrorChanged();
+	void streamingChatIdChanged();
+
+	private:
+	void beginAssistant();
+	void endStream();
+	void finalize();
+	void fail(const QString& message);
+	void handleLine(const QByteArray& line);
+	void drainBuffer();
+	void probeContextSize();
+	void setContextSize(int size);
+	void updateTokenUsage(const QJsonObject& data);
+	static void trimHistory(ChatSession* session, int contextSize);
+
+	static QString titleFrom(const QString& content);
+	static QString completionsPath(const QString& endpoint, const QString& subpath);
+	static QString serverErrorMessage(
+		const QByteArray& body, const QString& fallback);
+	static void setBusy(Chat* chat, bool value);
+	static void setStreamingChatId(Chat* chat, const QString& id);
+
+	QNetworkAccessManager m_manager;
+	ChatStore* m_store = nullptr;
+	QNetworkReply* m_reply = nullptr;
+	QByteArray m_buffer;
+	ChatSession* m_active = nullptr;
+	ChatMessage* m_streaming = nullptr;
+	QString m_pendingClearChatId;
+	bool m_busy = false;
+	QString m_endpoint;
+	QString m_model;
+	QStringList m_availableModels;
+	QString m_lastError;
+	QString m_streamingChatId;
+	double m_temperature = 0.7;
+	int m_contextSize = 0;
+	int m_lastTokenCount = 0;
+
+	static Chat* s_instance;
+
+	friend class ChatStore;
+};
+
+} // namespace ZShell