Add basic cache manager

core/ChangesManager.cpp

@@ -0,0 +1,86 @@
+/* 
+ * Copyright (C) 2024 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/>.
+ */
+
+#include "ChangesManager.h"
+#include "QodeAssistUtils.hpp"
+
+namespace QodeAssist {
+
+ChangesManager &ChangesManager::instance()
+{
+    static ChangesManager instance;
+    return instance;
+}
+
+ChangesManager::ChangesManager()
+    : QObject(nullptr)
+{
+}
+
+ChangesManager::~ChangesManager()
+{
+}
+
+void ChangesManager::addChange(TextEditor::TextDocument *document,
+                               int position,
+                               int charsRemoved,
+                               int charsAdded)
+{
+    auto &documentQueue = m_documentChanges[document];
+
+    QTextBlock block = document->document()->findBlock(position);
+    int lineNumber = block.blockNumber();
+    QString lineContent = block.text();
+    QString fileName = document->filePath().fileName();
+
+    ChangeInfo change{fileName, lineNumber, lineContent};
+
+    auto it = std::find_if(documentQueue.begin(),
+                           documentQueue.end(),
+                           [lineNumber](const ChangeInfo &c) { return c.lineNumber == lineNumber; });
+
+    if (it != documentQueue.end()) {
+        it->lineContent = lineContent;
+    } else {
+        documentQueue.enqueue(change);
+
+        if (documentQueue.size() > MAX_CACHED_CHANGES) {
+            documentQueue.dequeue();
+        }
+    }
+
+    logMessage(QString("ChangesManager: Updated %1 line %2: '%3'")
+                   .arg(fileName)
+                   .arg(lineNumber)
+                   .arg(lineContent));
+    logMessage(QString("ChangesManager: Document queue size %1").arg(documentQueue.size()));
+}
+
+QString ChangesManager::getRecentChangesContext() const
+{
+    QString context;
+    for (const auto &documentChanges : m_documentChanges) {
+        for (const auto &change : documentChanges) {
+            context += change.lineContent + "\n";
+        }
+    }
+    return context;
+}
+
+} // namespace QodeAssist