#include <gba/gba.hpp>

namespace GameBoyAdvance {

#include "bios.cpp"
#include "serialization.cpp"
BIOS bios;
System system;

auto System::loaded() const -> bool { return _loaded; }

auto System::init() -> void {
}

auto System::term() -> void {
}

auto System::power() -> void {
  bus.power();
  player.power();
  cpu.power();
  ppu.power();
  apu.power();
  cartridge.power();
  video.power();
  scheduler.power();
}

auto System::load() -> void {
  interface->loadRequest(ID::SystemManifest, "manifest.bml", true);
  auto document = BML::unserialize(information.manifest);

  if(auto bios = document["system/cpu/rom/name"].text()) {
    interface->loadRequest(ID::BIOS, bios, true);
  }

  cartridge.load();
  serializeInit();
  _loaded = true;
}

auto System::unload() -> void {
  if(!loaded()) return;
  cartridge.unload();
  _loaded = false;
}

auto System::run() -> void {
  while(true) {
    scheduler.enter();
    if(scheduler.exit_reason() == Scheduler::ExitReason::FrameEvent) break;
  }
  video.refresh();
}

auto System::runToSave() -> void {
  scheduler.sync = Scheduler::SynchronizeMode::CPU;
  runThreadToSave();

  scheduler.sync = Scheduler::SynchronizeMode::All;
  scheduler.active = ppu.thread;
  runThreadToSave();

  scheduler.sync = Scheduler::SynchronizeMode::All;
  scheduler.active = apu.thread;
  runThreadToSave();

  scheduler.sync = Scheduler::SynchronizeMode::None;
}

auto System::runThreadToSave() -> void {
  while(true) {
    scheduler.enter();
    if(scheduler.exit_reason() == Scheduler::ExitReason::SynchronizeEvent) break;
    if(scheduler.exit_reason() == Scheduler::ExitReason::FrameEvent) {
      video.refresh();
    }
  }
}

}