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/*
* Copyright (c) 2020, the SerenityOS developers.
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
*
* 1. Redistributions of source code must retain the above copyright notice, this
* list of conditions and the following disclaimer.
*
* 2. Redistributions in binary form must reproduce the above copyright notice,
* this list of conditions and the following disclaimer in the documentation
* and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
* DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
* CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#include "LanguageClient.h"
#include "HackStudio.h"
#include "Locator.h"
#include <AK/String.h>
#include <AK/Vector.h>
#include <DevTools/HackStudio/LanguageServers/LanguageServerEndpoint.h>
#include <LibGUI/Notification.h>
namespace HackStudio {
void ServerConnection::handle(const Messages::LanguageClient::AutoCompleteSuggestions& message)
{
if (!m_current_language_client) {
dbgln("Language Server connection has no attached language client");
return;
}
m_current_language_client->provide_autocomplete_suggestions(message.suggestions());
}
void ServerConnection::handle(const Messages::LanguageClient::DeclarationLocation& message)
{
if (!m_current_language_client) {
dbgln("Language Server connection has no attached language client");
return;
}
m_current_language_client->declaration_found(message.location().file, message.location().line, message.location().column);
}
void ServerConnection::die()
{
VERIFY(m_wrapper);
// Wrapper destructs us here
m_wrapper->on_crash();
}
void LanguageClient::open_file(const String& path, int fd)
{
if (!m_connection_wrapper.connection())
return;
m_connection_wrapper.connection()->post_message(Messages::LanguageServer::FileOpened(path, fd));
}
void LanguageClient::set_file_content(const String& path, const String& content)
{
if (!m_connection_wrapper.connection())
return;
m_connection_wrapper.connection()->post_message(Messages::LanguageServer::SetFileContent(path, content));
}
void LanguageClient::insert_text(const String& path, const String& text, size_t line, size_t column)
{
if (!m_connection_wrapper.connection())
return;
// set_active_client();
m_connection_wrapper.connection()->post_message(Messages::LanguageServer::FileEditInsertText(path, text, line, column));
}
void LanguageClient::remove_text(const String& path, size_t from_line, size_t from_column, size_t to_line, size_t to_column)
{
if (!m_connection_wrapper.connection())
return;
m_connection_wrapper.connection()->post_message(Messages::LanguageServer::FileEditRemoveText(path, from_line, from_column, to_line, to_column));
}
void LanguageClient::request_autocomplete(const String& path, size_t cursor_line, size_t cursor_column)
{
if (!m_connection_wrapper.connection())
return;
set_active_client();
m_connection_wrapper.connection()->post_message(Messages::LanguageServer::AutoCompleteSuggestions(GUI::AutocompleteProvider::ProjectLocation { path, cursor_line, cursor_column }));
}
void LanguageClient::provide_autocomplete_suggestions(const Vector<GUI::AutocompleteProvider::Entry>& suggestions) const
{
if (on_autocomplete_suggestions)
on_autocomplete_suggestions(suggestions);
// Otherwise, drop it on the floor :shrug:
}
void LanguageClient::set_autocomplete_mode(const String& mode)
{
if (!m_connection_wrapper.connection())
return;
m_connection_wrapper.connection()->post_message(Messages::LanguageServer::SetAutoCompleteMode(mode));
}
void LanguageClient::set_active_client()
{
if (!m_connection_wrapper.connection())
return;
m_connection_wrapper.set_active_client(*this);
}
HashMap<String, NonnullOwnPtr<ServerConnectionWrapper>> ServerConnectionInstances::s_instance_for_language;
void ServerConnection::handle(const Messages::LanguageClient::DeclarationsInDocument& message)
{
locator().set_declared_symbols(message.filename(), message.declarations());
}
void LanguageClient::search_declaration(const String& path, size_t line, size_t column)
{
if (!m_connection_wrapper.connection())
return;
set_active_client();
m_connection_wrapper.connection()->post_message(Messages::LanguageServer::FindDeclaration(GUI::AutocompleteProvider::ProjectLocation { path, line, column }));
}
void LanguageClient::declaration_found(const String& file, size_t line, size_t column) const
{
if (!on_declaration_found) {
dbgln("on_declaration_found callback is not set");
return;
}
on_declaration_found(file, line, column);
}
void ServerConnectionInstances::set_instance_for_language(const String& language_name, NonnullOwnPtr<ServerConnectionWrapper>&& connection_wrapper)
{
s_instance_for_language.set(language_name, move(connection_wrapper));
}
void ServerConnectionInstances::remove_instance_for_language(const String& language_name)
{
s_instance_for_language.remove(language_name);
}
ServerConnectionWrapper* ServerConnectionInstances::get_instance_wrapper(const String& language_name)
{
if (auto instance = s_instance_for_language.get(language_name); instance.has_value()) {
return const_cast<ServerConnectionWrapper*>(instance.value());
}
return nullptr;
}
void ServerConnectionWrapper::on_crash()
{
show_crash_notification();
m_connection.clear();
static constexpr int max_crash_frequency_seconds = 3;
if (m_last_crash_timer.is_valid() && m_last_crash_timer.elapsed() / 1000 < max_crash_frequency_seconds) {
dbgln("LanguageServer crash frequency is too high");
m_respawn_allowed = false;
show_frequenct_crashes_notification();
} else {
m_last_crash_timer.start();
try_respawn_connection();
}
}
void ServerConnectionWrapper::show_frequenct_crashes_notification() const
{
auto notification = GUI::Notification::construct();
notification->set_icon(Gfx::Bitmap::load_from_file("/res/icons/32x32/app-hack-studio.png"));
notification->set_title("LanguageServer Crashes too much!");
notification->set_text("LanguageServer aided features will not be available in this session");
notification->show();
}
void ServerConnectionWrapper::show_crash_notification() const
{
auto notification = GUI::Notification::construct();
notification->set_icon(Gfx::Bitmap::load_from_file("/res/icons/32x32/app-hack-studio.png"));
notification->set_title("Oops!");
notification->set_text(String::formatted("LanguageServer has crashed"));
notification->show();
}
ServerConnectionWrapper::ServerConnectionWrapper(const String& language_name, Function<NonnullRefPtr<ServerConnection>()> connection_creator)
: m_language(language_from_name(language_name))
, m_connection_creator(move(connection_creator))
{
create_connection();
}
void ServerConnectionWrapper::create_connection()
{
VERIFY(m_connection.is_null());
m_connection = m_connection_creator();
m_connection->set_wrapper(*this);
m_connection->handshake();
}
ServerConnection* ServerConnectionWrapper::connection()
{
return m_connection.ptr();
}
void ServerConnectionWrapper::attach(LanguageClient& client)
{
m_connection->m_current_language_client = &client;
}
void ServerConnectionWrapper::detach()
{
m_connection->m_current_language_client.clear();
}
void ServerConnectionWrapper::set_active_client(LanguageClient& client)
{
m_connection->m_current_language_client = &client;
}
void ServerConnectionWrapper::try_respawn_connection()
{
if (!m_respawn_allowed)
return;
dbgln("Respawning ServerConnection");
create_connection();
// After respawning the language-server, we have to flush the content of the project files
// so the server's FileDB will be up-to-date.
project().for_each_text_file([this](const ProjectFile& file) {
if (file.code_document().language() != m_language)
return;
m_connection->post_message(Messages::LanguageServer::SetFileContent(file.code_document().file_path(), file.document().text()));
});
}
}
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