QodeAssist/LLMClientInterface.cpp
2024-09-11 01:37:57 +02:00

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/*
* 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 "LLMClientInterface.hpp"
#include <QJsonDocument>
#include <QNetworkAccessManager>
#include <QNetworkReply>
#include <texteditor/textdocument.h>
#include "DocumentContextReader.hpp"
#include "LLMProvidersManager.hpp"
#include "PromptTemplateManager.hpp"
#include "QodeAssistUtils.hpp"
#include "core/ChangesManager.h"
#include "settings/ContextSettings.hpp"
#include "settings/GeneralSettings.hpp"
namespace QodeAssist {
LLMClientInterface::LLMClientInterface()
: m_manager(new QNetworkAccessManager(this))
{
updateProvider();
}
Utils::FilePath LLMClientInterface::serverDeviceTemplate() const
{
return "Qode Assist";
}
void LLMClientInterface::startImpl()
{
emit started();
}
void LLMClientInterface::sendData(const QByteArray &data)
{
updateProvider();
QJsonDocument doc = QJsonDocument::fromJson(data);
if (!doc.isObject())
return;
QJsonObject request = doc.object();
QString method = request["method"].toString();
if (method == "initialize") {
handleInitialize(request);
} else if (method == "initialized") {
// TODO make initilizied handler
} else if (method == "shutdown") {
handleShutdown(request);
} else if (method == "textDocument/didOpen") {
handleTextDocumentDidOpen(request);
} else if (method == "getCompletionsCycling") {
QString requestId = request["id"].toString();
startTimeMeasurement(requestId);
handleCompletion(request);
} else if (method == "$/cancelRequest") {
handleCancelRequest(request);
} else if (method == "exit") {
// TODO make exit handler
} else {
logMessage(QString("Unknown method: %1").arg(method));
}
}
void LLMClientInterface::handleCancelRequest(const QJsonObject &request)
{
QString id = request["params"].toObject()["id"].toString();
if (m_activeRequests.contains(id)) {
m_activeRequests[id]->abort();
m_activeRequests.remove(id);
logMessage(QString("Request %1 cancelled successfully").arg(id));
} else {
logMessage(QString("Request %1 not found").arg(id));
}
}
bool LLMClientInterface::processSingleLineCompletion(QNetworkReply *reply,
const QJsonObject &request,
const QString &accumulatedCompletion)
{
int newlinePos = accumulatedCompletion.indexOf('\n');
if (newlinePos != -1) {
QString singleLineCompletion = accumulatedCompletion.left(newlinePos).trimmed();
singleLineCompletion = removeStopWords(singleLineCompletion);
QJsonObject position = request["params"].toObject()["doc"].toObject()["position"].toObject();
sendCompletionToClient(singleLineCompletion, request, position, true);
m_accumulatedResponses.remove(reply);
reply->abort();
return true;
}
return false;
}
QString LLMClientInterface::сontextBefore(TextEditor::TextEditorWidget *widget,
int lineNumber,
int cursorPosition)
{
if (!widget)
return QString();
DocumentContextReader reader(widget->textDocument());
const auto &copyright = reader.copyrightInfo();
logMessage(QString{"Line Number: %1"}.arg(lineNumber));
logMessage(QString("Copyright found %1 %2").arg(copyright.found).arg(copyright.endLine));
if (lineNumber < reader.findCopyright().endLine)
return QString();
QString contextBefore;
if (Settings::contextSettings().readFullFile()) {
contextBefore = reader.readWholeFileBefore(lineNumber, cursorPosition);
} else {
contextBefore
= reader.getContextBefore(lineNumber,
cursorPosition,
Settings::contextSettings().readStringsBeforeCursor());
}
return contextBefore;
}
QString LLMClientInterface::сontextAfter(TextEditor::TextEditorWidget *widget,
int lineNumber,
int cursorPosition)
{
if (!widget)
return QString();
DocumentContextReader reader(widget->textDocument());
if (lineNumber < reader.findCopyright().endLine)
return QString();
QString contextAfter;
if (Settings::contextSettings().readFullFile()) {
contextAfter = reader.readWholeFileAfter(lineNumber, cursorPosition);
} else {
contextAfter = reader.getContextAfter(lineNumber,
cursorPosition,
Settings::contextSettings().readStringsAfterCursor());
}
return contextAfter;
}
void LLMClientInterface::handleInitialize(const QJsonObject &request)
{
QJsonObject response;
response["jsonrpc"] = "2.0";
response["id"] = request["id"];
QJsonObject result;
QJsonObject capabilities;
capabilities["textDocumentSync"] = 1;
capabilities["completionProvider"] = QJsonObject{{"resolveProvider", false}};
capabilities["hoverProvider"] = true;
result["capabilities"] = capabilities;
QJsonObject serverInfo;
serverInfo["name"] = "QodeAssist LSP Server";
serverInfo["version"] = "0.1";
result["serverInfo"] = serverInfo;
response["result"] = result;
emit messageReceived(LanguageServerProtocol::JsonRpcMessage(response));
}
void LLMClientInterface::handleShutdown(const QJsonObject &request)
{
QJsonObject response;
response["jsonrpc"] = "2.0";
response["id"] = request["id"];
response["result"] = QJsonValue();
emit messageReceived(LanguageServerProtocol::JsonRpcMessage(response));
}
void LLMClientInterface::handleTextDocumentDidOpen(const QJsonObject &request) {}
void LLMClientInterface::handleInitialized(const QJsonObject &request)
{
QJsonObject response;
response["jsonrpc"] = "2.0";
response["method"] = "initialized";
response["params"] = QJsonObject();
emit messageReceived(LanguageServerProtocol::JsonRpcMessage(response));
}
void LLMClientInterface::handleExit(const QJsonObject &request)
{
emit finished();
}
void LLMClientInterface::handleLLMResponse(QNetworkReply *reply, const QJsonObject &request)
{
QString &accumulatedResponse = m_accumulatedResponses[reply];
auto &templateManager = PromptTemplateManager::instance();
const Templates::PromptTemplate *currentTemplate = templateManager.getCurrentTemplate();
auto &providerManager = LLMProvidersManager::instance();
bool isComplete = providerManager.getCurrentProvider()->handleResponse(reply,
accumulatedResponse);
QJsonObject position = request["params"].toObject()["doc"].toObject()["position"].toObject();
if (!Settings::generalSettings().multiLineCompletion()
&& processSingleLineCompletion(reply, request, accumulatedResponse)) {
return;
}
if (isComplete || reply->isFinished()) {
if (isComplete) {
auto cleanedCompletion = removeStopWords(accumulatedResponse);
sendCompletionToClient(cleanedCompletion, request, position, true);
} else {
handleCompletion(request, accumulatedResponse);
}
m_accumulatedResponses.remove(reply);
}
}
void LLMClientInterface::handleCompletion(const QJsonObject &request,
const QStringView &accumulatedCompletion)
{
auto updatedContext = prepareContext(request, accumulatedCompletion);
sendLLMRequest(request, updatedContext);
}
ContextData LLMClientInterface::prepareContext(const QJsonObject &request,
const QStringView &accumulatedCompletion)
{
QJsonObject params = request["params"].toObject();
QJsonObject doc = params["doc"].toObject();
QJsonObject position = doc["position"].toObject();
QString uri = doc["uri"].toString();
Utils::FilePath filePath = Utils::FilePath::fromString(QUrl(uri).toLocalFile());
TextEditor::TextDocument *textDocument = TextEditor::TextDocument::textDocumentForFilePath(
filePath);
if (!textDocument) {
logMessage("Error: Document is not available for" + filePath.toString());
return ContextData{};
}
int cursorPosition = position["character"].toInt();
int lineNumber = position["line"].toInt();
auto textEditor = TextEditor::BaseTextEditor::currentTextEditor();
TextEditor::TextEditorWidget *widget = textEditor->editorWidget();
DocumentContextReader reader(widget->textDocument());
QString recentChanges = ChangesManager::instance().getRecentChangesContext(textDocument);
QString contextBefore = сontextBefore(widget, lineNumber, cursorPosition);
QString contextAfter = сontextAfter(widget, lineNumber, cursorPosition);
QString instructions = QString("%1%2%3").arg(Settings::contextSettings().useSpecificInstructions()
? reader.getSpecificInstructions()
: QString(),
Settings::contextSettings().useFilePathInContext()
? reader.getLanguageAndFileInfo()
: QString(),
recentChanges);
return {QString("%1%2").arg(contextBefore, accumulatedCompletion), contextAfter, instructions};
}
void LLMClientInterface::updateProvider()
{
m_serverUrl = QUrl(QString("%1%2").arg(Settings::generalSettings().url(),
Settings::generalSettings().endPoint()));
}
void LLMClientInterface::sendCompletionToClient(const QString &completion,
const QJsonObject &request,
const QJsonObject &position,
bool isComplete)
{
QJsonObject response;
response["jsonrpc"] = "2.0";
response[LanguageServerProtocol::idKey] = request["id"];
QJsonObject result;
QJsonArray completions;
QJsonObject completionItem;
completionItem[LanguageServerProtocol::textKey] = completion;
QJsonObject range;
range["start"] = position;
QJsonObject end = position;
end["character"] = position["character"].toInt() + completion.length();
range["end"] = end;
completionItem[LanguageServerProtocol::rangeKey] = range;
completionItem[LanguageServerProtocol::positionKey] = position;
completions.append(completionItem);
result["completions"] = completions;
result[LanguageServerProtocol::isIncompleteKey] = !isComplete;
response[LanguageServerProtocol::resultKey] = result;
logMessage(
QString("Completions: \n%1")
.arg(QString::fromUtf8(QJsonDocument(completions).toJson(QJsonDocument::Indented))));
logMessage(QString("Full response: \n%1")
.arg(QString::fromUtf8(QJsonDocument(response).toJson(QJsonDocument::Indented))));
QString requestId = request["id"].toString();
endTimeMeasurement(requestId);
emit messageReceived(LanguageServerProtocol::JsonRpcMessage(response));
}
void LLMClientInterface::sendLLMRequest(const QJsonObject &request, const ContextData &prompt)
{
QJsonObject providerRequest = {{"model", Settings::generalSettings().modelName.value()},
{"stream", true}};
auto currentTemplate = PromptTemplateManager::instance().getCurrentTemplate();
currentTemplate->prepareRequest(providerRequest, prompt);
auto &providerManager = LLMProvidersManager::instance();
providerManager.getCurrentProvider()->prepareRequest(providerRequest);
logMessage(QString("Sending request to llm: \nurl: %1\nRequest body:\n%2")
.arg(m_serverUrl.toString(),
QString::fromUtf8(
QJsonDocument(providerRequest).toJson(QJsonDocument::Indented))));
QNetworkRequest networkRequest(m_serverUrl);
networkRequest.setHeader(QNetworkRequest::ContentTypeHeader, "application/json");
if (providerRequest.contains("api_key")) {
QString apiKey = providerRequest["api_key"].toString();
networkRequest.setRawHeader("Authorization", QString("Bearer %1").arg(apiKey).toUtf8());
providerRequest.remove("api_key");
}
QNetworkReply *reply = m_manager->post(networkRequest, QJsonDocument(providerRequest).toJson());
if (!reply) {
logMessage("Error: Failed to create network reply");
return;
}
QString requestId = request["id"].toString();
m_activeRequests[requestId] = reply;
connect(reply, &QNetworkReply::readyRead, this, [this, reply, request]() {
handleLLMResponse(reply, request);
});
connect(reply, &QNetworkReply::finished, this, [this, reply, requestId]() {
reply->deleteLater();
m_activeRequests.remove(requestId);
if (reply->error() != QNetworkReply::NoError) {
logMessage(QString("Error in QodeAssist request: %1").arg(reply->errorString()));
} else {
logMessage("Request finished successfully");
}
});
}
QString LLMClientInterface::removeStopWords(const QStringView &completion)
{
QString filteredCompletion = completion.toString();
auto currentTemplate = PromptTemplateManager::instance().getCurrentTemplate();
QStringList stopWords = currentTemplate->stopWords();
for (const QString &stopWord : stopWords) {
filteredCompletion = filteredCompletion.replace(stopWord, "");
}
return filteredCompletion;
}
void LLMClientInterface::startTimeMeasurement(const QString &requestId)
{
m_requestStartTimes[requestId] = QDateTime::currentMSecsSinceEpoch();
}
void LLMClientInterface::endTimeMeasurement(const QString &requestId)
{
if (m_requestStartTimes.contains(requestId)) {
qint64 startTime = m_requestStartTimes[requestId];
qint64 endTime = QDateTime::currentMSecsSinceEpoch();
qint64 totalTime = endTime - startTime;
logPerformance(requestId, "TotalCompletionTime", totalTime);
m_requestStartTimes.remove(requestId);
}
}
void LLMClientInterface::logPerformance(const QString &requestId,
const QString &operation,
qint64 elapsedMs)
{
logMessage(QString("Performance: %1 %2 took %3 ms").arg(requestId, operation).arg(elapsedMs));
}
void LLMClientInterface::parseCurrentMessage() {}
} // namespace QodeAssist