feat: add support acp in common chat (#369)

sources/ChatView/ChatFileStore.hpp

@@ -0,0 +1,89 @@
+// Copyright (C) 2024-2026 Petr Mironychev
+// SPDX-License-Identifier: GPL-3.0-or-later
+// Additional attribution terms under GPLv3 §7(b) apply — see LICENSE
+
+#pragma once
+
+#include <functional>
+
+#include <QObject>
+#include <QPointer>
+#include <QString>
+
+#include "acp/AgentBinding.hpp"
+#include "session/ConversationHistory.hpp"
+
+namespace QodeAssist::Session {
+class Session;
+}
+
+namespace QodeAssist::Chat {
+
+struct SerializationResult
+{
+    bool success{false};
+    QString errorMessage;
+    QString warningMessage;
+};
+
+class ChatFileStore : public QObject
+{
+    Q_OBJECT
+
+public:
+    explicit ChatFileStore(Session::Session *session, QObject *parent = nullptr);
+
+    QString historyDir() const;
+    QString suggestedFileName() const;
+    QString autosaveFilePath(const QString &recentFilePath) const;
+    QString autosaveFilePath(
+        const QString &recentFilePath,
+        const QString &firstMessage,
+        bool hasImageAttachments) const;
+
+    using BindingReader = std::function<Acp::AgentBinding()>;
+    using BindingWriter = std::function<void(const Acp::AgentBinding &)>;
+
+    void setBindingReader(BindingReader reader);
+    void setBindingWriter(BindingWriter writer);
+
+    SerializationResult save(const QString &filePath) const;
+    SerializationResult load(const QString &filePath) const;
+
+    void showSaveDialog();
+    void showLoadDialog();
+    void openHistoryFolder() const;
+
+    static SerializationResult saveToFile(
+        const Session::ConversationHistory &history,
+        const Acp::AgentBinding &binding,
+        const QString &filePath);
+    static SerializationResult loadFromFile(
+        Session::ConversationHistory &history,
+        Acp::AgentBinding &binding,
+        const QString &filePath);
+
+    static QString getChatContentFolder(const QString &chatFilePath);
+    static bool saveContentToStorage(
+        const QString &chatFilePath,
+        const QString &fileName,
+        const QString &base64Data,
+        QString &storedPath);
+    static QString loadContentFromStorage(const QString &chatFilePath, const QString &storedPath);
+    static QByteArray loadRawContentFromStorage(
+        const QString &chatFilePath, const QString &storedPath);
+
+signals:
+    void saveRequested(const QString &filePath);
+    void loadRequested(const QString &filePath);
+
+private:
+    QString generateChatFileName(const QString &shortMessage, const QString &dir) const;
+    static bool ensureDirectoryExists(const QString &filePath);
+
+    QPointer<Session::Session> m_session;
+    BindingReader m_bindingReader;
+    BindingWriter m_bindingWriter;
+};
+
+} // namespace QodeAssist::Chat