<?php

declare(strict_types=1);

namespace App\Game\Entities;

use App\Game\EntityList;
use App\Game\Player;
use App\Game\Room;

final class Boss extends Zombie
{
    private float $spawnInterval;

    private int $spawnCount;

    private float $spawnTimer;

    /** @var null|callable(float,float,EntityList,Room,?Player):void */
    private $spawnZombie;

    public function __construct(
        float $x,
        float $y,
        EntityList $container,
        Room $room,
        ?Player $initialTarget,
        array $config = [],
        ?callable $onDeath = null,
    ) {
        parent::__construct($x, $y, $container, $room, $config, $onDeath);
        if ($initialTarget !== null) {
            $this->target = $initialTarget;
        }
        $this->spawnInterval = $config['spawnInterval'] ?? 5.0;
        $this->spawnCount = $config['spawnCount'] ?? 1;
        $this->spawnTimer = 3.0;
        $this->spawnZombie = $config['spawnZombie'] ?? null;
    }

    public function kind(): string
    {
        return 'boss';
    }

    public function update(float $dt): void
    {
        parent::update($dt);

        $this->spawnTimer -= $dt;
        if ($this->spawnTimer > 0.0 || $this->spawnZombie === null) {
            return;
        }
        $this->spawnTimer = $this->spawnInterval;

        $minions = 0;
        foreach ($this->container as $obj) {
            if ($obj instanceof Zombie && ! ($obj instanceof self)) {
                $minions++;
            }
        }
        if ($minions >= 15) {
            return;
        }
        for ($i = 0; $i < $this->spawnCount; $i++) {
            $angle = ($i / $this->spawnCount) * M_PI * 2.0 + $this->rand01() * 0.6;
            ($this->spawnZombie)(
                $this->pos->x + cos($angle) * 70.0,
                $this->pos->y + sin($angle) * 70.0,
                $this->container,
                $this->room,
                $this->target,
            );
        }
    }

    public function toSnapshot(): array
    {
        $data = parent::toSnapshot();
        $data['type'] = 'boss';

        return $data;
    }
}