#include "muxer.h"
#include <iostream>
#include <fmod_errors.h>

void ERRCHECK_fn(FMOD_RESULT result, const char* file, int line) {
  if (result != FMOD_OK) {
    std::cout << file << "(" << line << "): FMOD error " << result << " - " << FMOD_ErrorString(result);
    abort();
  }
}

#define ERRCHECK(_result) ERRCHECK_fn(_result, __FILE__, __LINE__)

Muxer::Muxer() {
  FMOD::Studio::System* system_holder = nullptr;
  ERRCHECK(FMOD::Studio::System::create(&system_holder));
  system_.reset(system_holder);

  FMOD::System* coreSystem = nullptr;
  ERRCHECK(system_->getCoreSystem(&coreSystem));
  ERRCHECK(coreSystem->setSoftwareFormat(0, FMOD_SPEAKERMODE_5POINT1, 0));
  ERRCHECK(system_->initialize(1024, FMOD_STUDIO_INIT_NORMAL, FMOD_INIT_NORMAL, nullptr));

  FMOD::Studio::Bank* masterBank = nullptr;
  ERRCHECK(system_->loadBankFile("../res/fmod/Build/Desktop/Master Bank.bank", FMOD_STUDIO_LOAD_BANK_NORMAL, &masterBank));

  FMOD::Studio::Bank* stringsBank = nullptr;
  ERRCHECK(system_->loadBankFile("../res/fmod/Build/Desktop/Master Bank.strings.bank", FMOD_STUDIO_LOAD_BANK_NORMAL, &stringsBank));

  FMOD::Studio::EventDescription* exploration_desc = nullptr;
  ERRCHECK(system_->getEvent("event:/exploration", &exploration_desc));
  ERRCHECK(exploration_desc->createInstance(&exploration_event_));
  ERRCHECK(exploration_event_->start());
}

void Muxer::setPlayerLoc(int x, int y) {
  FMOD_3D_ATTRIBUTES attributes = {{0}};
  attributes.forward.z = 1.0f;
  attributes.up.y = 1.0f;
  attributes.position.x = x;
  attributes.position.y = y;
  ERRCHECK(system_->setListenerAttributes(0, &attributes));
}

void Muxer::playSoundAtPosition(std::string name, float x, float y) {
  std::string eventPath = std::string("event:/") + name;

  FMOD::Studio::EventDescription* eventDescription = nullptr;
  ERRCHECK(system_->getEvent(eventPath.c_str(), &eventDescription));

  FMOD::Studio::EventInstance* eventInstance = nullptr;
  ERRCHECK(eventDescription->createInstance(&eventInstance));

  FMOD_3D_ATTRIBUTES attributes = {{0}};
  attributes.forward.z = 1.0f;
  attributes.up.y = 1.0f;
  attributes.position.x = x;
  attributes.position.y = y;
  ERRCHECK(eventInstance->set3DAttributes(&attributes));
  ERRCHECK(eventInstance->start());
  ERRCHECK(eventInstance->release());
}

void Muxer::setMusicLevel(int level) {
  ERRCHECK(exploration_event_->setParameterByName("level", level));
}

void Muxer::update() {
  ERRCHECK(system_->update());
}