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// Copyright (C) Filippo Cucchetto <filippocucchetto@gmail.com>
// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR GPL-3.0+ OR GPL-3.0 WITH Qt-GPL-exception-1.0
#include "client.h"
#include "sexprparser.h"
#include <array>
namespace Nim {
namespace Suggest {
NimSuggestClient::NimSuggestClient(QObject *parent) : QObject(parent)
{
connect(&m_socket, &QTcpSocket::readyRead, this, &NimSuggestClient::onReadyRead);
connect(&m_socket, &QTcpSocket::connected, this, &NimSuggestClient::connected);
connect(&m_socket, &QTcpSocket::disconnected, this, &NimSuggestClient::disconnected);
}
bool NimSuggestClient::connectToServer(quint16 port)
{
m_port = port;
m_socket.connectToHost("localhost", m_port);
return true;
}
bool NimSuggestClient::disconnectFromServer()
{
m_socket.disconnectFromHost();
clear();
return true;
}
std::shared_ptr<NimSuggestClientRequest> NimSuggestClient::sug(const QString &nimFile,
int line, int column,
const QString &dirtyFile)
{
return sendRequest(QLatin1String("sug"), nimFile, line, column, dirtyFile);
}
std::shared_ptr<NimSuggestClientRequest> NimSuggestClient::def(const QString &nimFile,
int line, int column,
const QString &dirtyFile)
{
return sendRequest(QLatin1String("def"), nimFile, line, column, dirtyFile);
}
std::shared_ptr<NimSuggestClientRequest> NimSuggestClient::sendRequest(const QString& type,
const QString &nimFile,
int line, int column,
const QString &dirtyFile)
{
if (!m_socket.isOpen())
return nullptr;
auto result = std::make_shared<NimSuggestClientRequest>(m_lastMessageId++);
m_requests.emplace(result->id(), result);
QByteArray body = QString(R"((call %1 %2 ("%3" %4 %5 "%6"))\n)")
.arg(result->id())
.arg(type)
.arg(nimFile)
.arg(line).arg(column)
.arg(dirtyFile)
.toUtf8();
QByteArray length = QString::number(body.size(), 16).rightJustified(6, '0').toUtf8();
QByteArray message = length + body;
m_socket.write(message);
m_socket.waitForBytesWritten();
return result;
}
void NimSuggestClient::clear()
{
for (const auto &pair : m_requests) {
if (auto req = pair.second.lock()) {
emit req->finished();
}
}
m_lines.clear();
m_readBuffer.clear();
m_requests.clear();
m_lastMessageId = 0;
}
void NimSuggestClient::onDisconnectedFromServer()
{
clear();
}
void NimSuggestClient::onReadyRead()
{
std::array<char, 2048> buffer;
for (;;) {
qint64 num_read = m_socket.read(buffer.data(), buffer.size());
m_readBuffer.insert(m_readBuffer.end(), buffer.begin(), buffer.begin() + num_read);
if (num_read <= 0) {
break;
}
}
while (m_readBuffer.size() >= 6) {
const size_t payload_size = QByteArray::fromRawData(m_readBuffer.data(), 6).toUInt(nullptr, 16);
if (payload_size <= m_readBuffer.size() - 6) {
parsePayload(m_readBuffer.data() + 6, payload_size);
m_readBuffer.erase(m_readBuffer.begin(), m_readBuffer.begin() + 6u + payload_size);
} else {
break;
}
}
}
void NimSuggestClient::parsePayload(const char *payload, std::size_t size)
{
SExprParser::Node root_ast;
SExprParser parser(payload, size);
if (!parser.parse(root_ast))
return;
if (root_ast.nodes.at(0).value != "return")
return;
const quint64 uid = std::stoull(root_ast.nodes.at(1).value, nullptr, 0);
auto it = m_requests.find(uid);
if (it == m_requests.end())
return;
auto req = std::dynamic_pointer_cast<NimSuggestClientRequest>((*it).second.lock());
if (!req)
return;
std::vector<Line> suggestions;
suggestions.reserve(root_ast.nodes.at(2).nodes.size());
for (const SExprParser::Node &row : root_ast.nodes.at(2).nodes) {
Line line;
if (!Line::fromString(line.line_type, row.nodes.at(0).value))
continue;
if (!Line::fromString(line.symbol_kind, row.nodes.at(1).value))
continue;
line.data.reserve(row.nodes.at(2).nodes.size());
for (const SExprParser::Node &field : row.nodes.at(2).nodes)
line.data.push_back(QString::fromStdString(field.value));
line.abs_path = QString::fromStdString(row.nodes.at(3).value);
line.symbol_type = QString::fromStdString(row.nodes.at(4).value);
line.row = std::stoi(row.nodes.at(5).value);
line.column = std::stoi(row.nodes.at(6).value);
line.doc = QString::fromStdString(row.nodes.at(7).value);
suggestions.push_back(std::move(line));
}
req->setFinished(std::move(suggestions));
m_requests.erase(it);
}
} // namespace Suggest
} // namespace Nim
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