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/*
* Copyright (c) 2021, Itamar S. <itamar8910@gmail.com>
*
* SPDX-License-Identifier: BSD-2-Clause
*/
#include "FileDB.h"
#include <AK/LexicalPath.h>
#include <AK/NonnullRefPtr.h>
#include <LibCore/File.h>
namespace LanguageServers {
RefPtr<const GUI::TextDocument> FileDB::get(const String& filename) const
{
auto absolute_path = to_absolute_path(filename);
auto document_optional = m_open_files.get(absolute_path);
if (!document_optional.has_value())
return nullptr;
return *document_optional.value();
}
RefPtr<GUI::TextDocument> FileDB::get(const String& filename)
{
auto document = reinterpret_cast<const FileDB*>(this)->get(filename);
if (document.is_null())
return nullptr;
return adopt_ref(*const_cast<GUI::TextDocument*>(document.leak_ref()));
}
RefPtr<const GUI::TextDocument> FileDB::get_or_create_from_filesystem(const String& filename) const
{
auto absolute_path = to_absolute_path(filename);
auto document = get(absolute_path);
if (document)
return document;
return create_from_filesystem(absolute_path);
}
RefPtr<GUI::TextDocument> FileDB::get_or_create_from_filesystem(const String& filename)
{
auto document = reinterpret_cast<const FileDB*>(this)->get_or_create_from_filesystem(filename);
if (document.is_null())
return nullptr;
return adopt_ref(*const_cast<GUI::TextDocument*>(document.leak_ref()));
}
bool FileDB::is_open(const String& filename) const
{
return m_open_files.contains(to_absolute_path(filename));
}
bool FileDB::add(const String& filename, int fd)
{
auto document = create_from_fd(fd);
if (!document)
return false;
m_open_files.set(to_absolute_path(filename), document.release_nonnull());
return true;
}
String FileDB::to_absolute_path(const String& filename) const
{
if (LexicalPath { filename }.is_absolute()) {
return filename;
}
if (m_project_root.is_null())
return filename;
return LexicalPath { String::formatted("{}/{}", m_project_root, filename) }.string();
}
RefPtr<GUI::TextDocument> FileDB::create_from_filesystem(const String& filename) const
{
auto file = Core::File::open(to_absolute_path(filename), Core::OpenMode::ReadOnly);
if (file.is_error()) {
dbgln("failed to create document for {} from filesystem", filename);
return nullptr;
}
return create_from_file(*file.value());
}
RefPtr<GUI::TextDocument> FileDB::create_from_fd(int fd) const
{
auto file = Core::File::construct();
if (!file->open(fd, Core::OpenMode::ReadOnly, Core::File::ShouldCloseFileDescriptor::Yes)) {
errno = file->error();
perror("open");
dbgln("Failed to open project file");
return nullptr;
}
return create_from_file(*file);
}
class DefaultDocumentClient final : public GUI::TextDocument::Client {
public:
virtual ~DefaultDocumentClient() override = default;
virtual void document_did_append_line() override {};
virtual void document_did_insert_line(size_t) override {};
virtual void document_did_remove_line(size_t) override {};
virtual void document_did_remove_all_lines() override {};
virtual void document_did_change(GUI::AllowCallback) override {};
virtual void document_did_set_text(GUI::AllowCallback) override {};
virtual void document_did_set_cursor(const GUI::TextPosition&) override {};
virtual void document_did_update_undo_stack() override { }
virtual bool is_automatic_indentation_enabled() const override { return false; }
virtual int soft_tab_width() const override { return 4; }
};
static DefaultDocumentClient s_default_document_client;
RefPtr<GUI::TextDocument> FileDB::create_from_file(Core::File& file) const
{
auto content = file.read_all();
StringView content_view(content);
auto document = GUI::TextDocument::create(&s_default_document_client);
document->set_text(content_view);
return document;
}
void FileDB::on_file_edit_insert_text(const String& filename, const String& inserted_text, size_t start_line, size_t start_column)
{
VERIFY(is_open(filename));
auto document = get(filename);
VERIFY(document);
GUI::TextPosition start_position { start_line, start_column };
document->insert_at(start_position, inserted_text, &s_default_document_client);
dbgln_if(FILE_CONTENT_DEBUG, "{}", document->text());
}
void FileDB::on_file_edit_remove_text(const String& filename, size_t start_line, size_t start_column, size_t end_line, size_t end_column)
{
// TODO: If file is not open - need to get its contents
// Otherwise- somehow verify that respawned language server is synced with all file contents
VERIFY(is_open(filename));
auto document = get(filename);
VERIFY(document);
GUI::TextPosition start_position { start_line, start_column };
GUI::TextRange range {
GUI::TextPosition { start_line, start_column },
GUI::TextPosition { end_line, end_column }
};
document->remove(range);
dbgln_if(FILE_CONTENT_DEBUG, "{}", document->text());
}
RefPtr<GUI::TextDocument> FileDB::create_with_content(const String& content)
{
StringView content_view(content);
auto document = GUI::TextDocument::create(&s_default_document_client);
document->set_text(content_view);
return document;
}
bool FileDB::add(const String& filename, const String& content)
{
auto document = create_with_content(content);
if (!document) {
VERIFY_NOT_REACHED();
return false;
}
m_open_files.set(to_absolute_path(filename), document.release_nonnull());
return true;
}
}
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