<?php

namespace Tests;

use App\Scene\MarbleScene;
use App\Scene\SpiralScene;
use JumPHP\Shorts\Quality;
use JumPHP\Shorts\Recorder;
use JumPHP\Shorts\Sprites;
use JumPHP\Shorts\Voice;
use JumPHP\Testing\GameTestCase;

/** What keeps the game smooth on a phone: no sound made at a bounce, no texture made every frame. */
final class LiveSpeedTest extends GameTestCase
{
    public function testTheVoicesOfTheSceneAreMadeInTheBackgroundAtItsStart(): void
    {
        $this->game->start(MarbleScene::class, ['seed' => 3]);
        $recorder = $this->recorder();
        self::assertGreaterThan(0, $recorder->waiting() + $recorder->made(), 'the notes of the scene are queued at its start');
        $this->game->run(120);
        self::assertSame(0, $recorder->waiting());
        $made = $recorder->made();
        $this->game->run(600);
        self::assertSame($made, $recorder->made(), 'a steady scene makes no new voice at a bounce');
    }

    public function testTheCatsHelloMeowsAreMadeBeforeTheCatsShowUp(): void
    {
        $this->game->start(\App\Scene\CatBounceScene::class, ['seed' => 3]);
        $this->game->run(60 * 3);
        $made = $this->recorder()->made();
        $this->game->run(60 * 8);
        self::assertLessThanOrEqual($made + 3, $this->recorder()->made(), 'no burst of new voices once the cats are all there');
    }

    public function testASteadyFrameMakesNoTexture(): void
    {
        $this->game->start(SpiralScene::class, ['seed' => 3]);
        $this->game->run(60 * 6);                       // one loop of the spiral: its colours are all made
        $before = Sprites::$created;
        $this->game->run(60 * 4);
        self::assertLessThan(10, Sprites::$created - $before);
    }

    public function testALiveGameUsesTheFastShapes(): void
    {
        $this->game->start(SpiralScene::class, ['seed' => 3]);
        self::assertTrue(Quality::$live);
        self::assertFalse($this->recorder()->isRecording());
    }

    public function testALiveVoiceIsAHalfRateWavAndTheFilmKeepsFullRate(): void
    {
        $live = Voice::wav('pluck', 440.0, 0.4, 0.3);
        $film = Voice::header(10);
        self::assertSame(Voice::LIVE_RATE, unpack('V', substr($live, 24, 4))[1]);
        self::assertSame(Voice::RATE, unpack('V', substr($film, 24, 4))[1]);
        self::assertCount((int)round(0.4 * Voice::RATE), Voice::render('pluck', 440.0, 0.4, 0.3));
    }

    private function recorder(): Recorder
    {
        return $this->game->peek('recorder');
    }
}