#include "FileResolvingTask.h"
#include "Json.h"

namespace {
    const char * metabase = "https://cursemeta.dries007.net";
}

Flame::FileResolvingTask::FileResolvingTask(Flame::Manifest& toProcess)
    : m_toProcess(toProcess)
{
}

void Flame::FileResolvingTask::executeTask()
{
    setStatus(tr("Resolving mod IDs..."));
    setProgress(0, m_toProcess.files.size());
    m_dljob.reset(new NetJob("Mod id resolver"));
    results.resize(m_toProcess.files.size());
    int index = 0;
    for(auto & file: m_toProcess.files)
    {
        auto projectIdStr = QString::number(file.projectId);
        auto fileIdStr = QString::number(file.fileId);
        QString metaurl = QString("%1/%2/%3.json").arg(metabase, projectIdStr, fileIdStr);
        auto dl = Net::Download::makeByteArray(QUrl(metaurl), &results[index]);
        m_dljob->addNetAction(dl);
        index ++;
    }
    connect(m_dljob.get(), &NetJob::finished, this, &Flame::FileResolvingTask::netJobFinished);
    m_dljob->start();
}

void Flame::FileResolvingTask::netJobFinished()
{
    bool failed = false;
    int index = 0;
    for(auto & bytes: results)
    {
        auto & out = m_toProcess.files[index];
        try
        {
            failed &= (!out.parseFromBytes(bytes));
        }
        catch (const JSONValidationError &e)
        {

            qCritical() << "Resolving of" << out.projectId << out.fileId << "failed because of a parsing error:";
            qCritical() << e.cause();
            qCritical() << "JSON:";
            qCritical() << bytes;
            failed = true;
        }
        index++;
    }
    if(!failed)
    {
        emitSucceeded();
    }
    else
    {
        emitFailed(tr("Some mod ID resolving tasks failed."));
    }
}