#include <core/director.h>

namespace extra2d {

Director& Director::inst() {
    static Director instance;
    return instance;
}

bool Director::init() {
    if (inited_) return true;

    sched_ = makeUnique<Scheduler>();
    svcMgr_ = makeUnique<SvcMgr>();

    inited_ = true;
    return true;
}

void Director::shutdown() {
    if (!inited_) return;

    svcMgr_->shutdownAll();
    sched_->unscheduleAll();

    svcMgr_.reset();
    sched_.reset();

    inited_ = false;
}

void Director::mainLoop(float dt) {
    if (paused_) return;

    dt_ = dt;
    totalTime_ += dt;
    frameCount_++;

    svcMgr_->updateAll(dt);

    fixedAccumulator_ += dt;
    while (fixedAccumulator_ >= fixedDt_) {
        svcMgr_->fixedUpdateAll(fixedDt_);
        fixedAccumulator_ -= fixedDt_;
    }

    sched_->update(dt);

    svcMgr_->lateUpdateAll(dt);
}

void Director::mainLoopParallel(float dt) {
    if (paused_) return;

    dt_ = dt;
    totalTime_ += dt;
    frameCount_++;

    svcMgr_->updateAll(dt);

    fixedAccumulator_ += dt;
    while (fixedAccumulator_ >= fixedDt_) {
        svcMgr_->fixedUpdateAll(fixedDt_);
        fixedAccumulator_ -= fixedDt_;
    }

    sched_->updateParallel(dt);

    svcMgr_->lateUpdateAll(dt);
}

void Director::pause() {
    paused_ = true;
}

void Director::resume() {
    paused_ = false;
}

void Director::setTimeScale(float scale) {
    sched_->setTimeScale(scale);
}

} // namespace extra2d