#include "app.h"

const ShaderAsset shaderAssets[SHADER_COUNT] = {{"shaders/postfx.fs"}};
const SoundtrackAsset soundtrackAssets[SOUNDTRACK_COUNT] = {
  {"assets/gameplay_theme.mp3"},
  {"assets/sea.wav"}
};

void InitGame(App *app) {

  SetRandomSeed(1234);
  GameState *g = &app->game;
  g->assets = (Assets){.shaderAssets = shaderAssets,
                       .soundtrackAssets = soundtrackAssets};

  for (int i = 0; i < SHADER_COUNT; i++) {
    g->postFX[i] = CreatePostFX(g->assets.shaderAssets[i].path);
  }

  for (int i = 0; i < SOUNDTRACK_COUNT; i++) {
    g->soundtracks[i] = LoadSoundtrack(g->assets.soundtrackAssets[i].path);
  }

  g->target = LoadRenderTexture(app->window.width, app->window.height);

  CreatePlayer();
  Player *player = GetPlayer();
  CreateCamera(player->physics.position, 10.0f);
  g->birds = CreateBirds();
  g->enemies = CreateEnemies();
  g->islands = CreateIslands();
  g->floor = CreateFloor();
  g->projectiles = CreateProjectiles();

  Texture2D mouseTexture = LoadTexture("assets/mouse.png");
  g->mouse = CreateMouse(0.10f, 5.0f, 10.0f, &mouseTexture);
}

void StartGame(App *app) {
  if (!app->state.gameStarted) {
    app->state.gameStarted = true;
  }
}

void UpdateGame(App *app) {
  GameState *g = &app->game;
  if (app->flags.limitFPS) {
    SetTargetFPS(60);
  } else {
    SetTargetFPS(0);
  }

  StartGame(app);

  OnEscapeChangeView(app, MENU);
  OnWindowClosedStoppApp(app);

  for (int i = 0; i < SHADER_COUNT; i++) {
    UpdatePostFX(&g->postFX[i]);
  }

  UpdateMouse(&g->mouse);


  Player *player = GetPlayer();
  UpdateCamera2D(&player->physics.position, &g->mouse);
  UpdateFloor(&g->floor);
  UpdatePlayer();
  UpdateBirds(&g->birds);
  UpdateEnemies(&g->enemies, &g->projectiles);
  UpdateIslands(&g->islands);
  UpdateProjectiles(&g->projectiles, &g->enemies);
  UpdateSoundtrack(&g->soundtracks[AMBIENT], app->flags.soundtrackOn);
}

void RenderComponents(App *app) {
  GameState *g = &app->game;
  RenderFloor(&g->floor);
  RenderPlayer();
  RenderEnemies(&g->enemies);
  RenderBirds(&g->birds);
  RenderIslands(&g->islands);
  RenderProjectiles(&g->projectiles);
}

void RenderGame(App *app) {
  GameState *g = &app->game;

  BeginTextureMode(g->target);
  ClearBackground(BLACK);
  Camera2D *camera = GetCamera();
  BeginMode2D(*camera);
  RenderComponents(app);
  EndMode2D();
  DrawTextureRec(
      g->mouse.cursorTexture,
      (Rectangle){0, 0, g->mouse.cursorTexture.width,
                  g->mouse.cursorTexture.height},
      (Vector2){g->mouse.screenPosition.x, g->mouse.screenPosition.y}, WHITE);

  Player *player = GetPlayer();
  DrawText(TextFormat("Gold: %u", player->gold), 0.0f, 0.0f, 12.0f, YELLOW);
  EndTextureMode();

  BeginDrawing();
  ClearBackground(BLACK);
  for (int i = 0; i < SHADER_COUNT; i++) {
    RenderPostFX(&g->postFX[i], &g->target);
  }

  if (app->flags.showFPS) {
    DrawFPS(10, 10);
  }

  EndDrawing();
}

void CleanupGame(App *app) {
  GameState *g = &app->game;
  for (int i = 0; i < SHADER_COUNT; i++) {
    UnloadPostFX(&g->postFX[i]);
  }
  for (int i = 0; i < SOUNDTRACK_COUNT; i++) {
    UnloadMusicStream(g->soundtracks[i].music);
  }
  UnloadRenderTexture(g->target);
}