// This file is part of the 64k demo project.
// It tests the core functionality of the audio tracker engine.

#include "audio/audio_engine.h"
#include "audio/gen.h"
#include "audio/synth.h"
#include "audio/tracker.h"
// #include "generated/music_data.h" // Will be generated by tracker_compiler
#include <assert.h>
#include <stdio.h>

// Forward declaration for generated data
extern const NoteParams g_tracker_samples[];
extern const uint32_t g_tracker_samples_count;
extern const TrackerPattern g_tracker_patterns[];
extern const uint32_t g_tracker_patterns_count;
extern const TrackerScore g_tracker_score;

void test_tracker_init() {
  AudioEngine engine;
  engine.init();
  printf("Tracker init test PASSED\n");
  engine.shutdown();
}

void test_tracker_pattern_triggering() {
  AudioEngine engine;
  engine.init();

  // At time 0.0f, 3 patterns are triggered:
  // - crash (1 event at beat 0.0)
  // - kick_basic (events at beat 0.0, 2.0, 2.5)
  // - hihat_basic (events at beat 0.0, 0.5, 1.0, 1.5, 2.0, 2.5, 3.0, 3.5)
  // With event-based triggering, only events at beat 0.0 trigger immediately.

  // Test 1: At music_time = 0.0f, events at beat 0.0 trigger
  // drums_basic:
  //   0.00, ASSET_KICK_1
  //   0.00, NOTE_A4
  engine.update(0.0f);
  // Expect 2 voices: kick + note
  assert(engine.get_active_voice_count() == 2);

  // Test 2: At music_time = 0.25f (beat 0.5 @ 120 BPM), snare event triggers
  //   0.25, ASSET_SNARE_1
  engine.update(0.25f);
  // Expect at least 2 voices (snare + maybe others)
  // Exact count depends on sample duration (kick/note might have finished)
  int voices = engine.get_active_voice_count();
  assert(voices >= 2);

  // Test 3: At music_time = 0.5f (beat 1.0), kick event triggers
  //   0.50, ASSET_KICK_1
  engine.update(0.5f);
  // Expect at least 3 voices (new kick + others)
  assert(engine.get_active_voice_count() >= 3);

  // Test 4: Advance to 2.0f - new patterns trigger at time 2.0f
  engine.update(2.0f);
  // Many events have triggered by now
  assert(engine.get_active_voice_count() > 5);

  printf("Tracker pattern triggering test PASSED\n");
  engine.shutdown();
}

int main() {
  printf("Running Tracker tests...\n");
  test_tracker_init();
  test_tracker_pattern_triggering();
  printf("Tracker tests PASSED\n");
  return 0;
}