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#include "clangdclient.h"

#include <cpptools/cppcodemodelsettings.h>
#include <cpptools/cpptoolsreuse.h>
#include <languageclient/languageclientinterface.h>

using namespace LanguageClient;
using namespace LanguageServerProtocol;

namespace ClangCodeModel {
namespace Internal {

static Q_LOGGING_CATEGORY(clangdLog, "qtc.clangcodemodel.clangd", QtWarningMsg);

static QString indexingToken() { return "backgroundIndexProgress"; }

static BaseClientInterface *clientInterface(const Utils::FilePath &jsonDbDir)
{
    Utils::CommandLine cmd{CppTools::codeModelSettings()->clangdFilePath(),
                           {"--index", "--background-index", "--limit-results=0"}};
    if (!jsonDbDir.isEmpty())
        cmd.addArg("--compile-commands-dir=" + jsonDbDir.toString());
    if (clangdLog().isDebugEnabled())
        cmd.addArgs({"--log=verbose", "--pretty"});
    const auto interface = new StdIOClientInterface;
    interface->setCommandLine(cmd);
    return interface;
}

ClangdClient::ClangdClient(ProjectExplorer::Project *project, const Utils::FilePath &jsonDbDir)
    : Client(clientInterface(jsonDbDir))
{
    setName(tr("clangd"));
    LanguageFilter langFilter;
    langFilter.mimeTypes = QStringList{"text/x-chdr", "text/x-c++hdr", "text/x-c++src",
            "text/x-objc++src", "text/x-objcsrc"};
    setSupportedLanguage(langFilter);
    LanguageServerProtocol::ClientCapabilities caps = Client::defaultClientCapabilities();
    caps.clearExperimental();
    caps.clearTextDocument();
    setClientCapabilities(caps);
    setLocatorsEnabled(false);
    setProgressTitleForToken(indexingToken(), tr("Parsing C/C++ Files (clangd)"));
    setCurrentProject(project);
    connect(this, &Client::workDone, this, [this](const ProgressToken &token) {
        const QString * const val = Utils::get_if<QString>(&token);
        if (val && *val == indexingToken())
            m_isFullyIndexed = true;
    });
    start();
}

} // namespace Internal
} // namespace ClangCodeModel