<?php

declare(strict_types=1);

namespace Brick\Geo;

use Brick\Geo\Attribute\NoProxy;
use Brick\Geo\Projector\Projector;
use Override;

use function array_map;

/**
 * A MultiPoint is a 0-dimensional GeometryCollection. The elements of a MultiPoint are restricted to Points.
 *
 * The Points are not connected or ordered in any semantically important way
 * (see the discussion at GeometryCollection). A MultiPoint is simple if no two Points in the MultiPoint are equal
 * (have identical coordinate values in X and Y).
 *
 * The boundary of a MultiPoint is the empty set.
 *
 * @extends GeometryCollection<Point>
 *
 * @final
 */
class MultiPoint extends GeometryCollection
{
    /**
     * @return list<list<float>>
     */
    #[Override]
    public function toArray(): array
    {
        return array_map(
            fn (Point $point) => $point->toArray(),
            $this->geometries,
        );
    }

    #[NoProxy, Override]
    public function geometryType(): string
    {
        return 'MultiPoint';
    }

    #[NoProxy, Override]
    public function geometryTypeBinary(): int
    {
        return Geometry::MULTIPOINT;
    }

    #[Override]
    public function dimension(): int
    {
        return 0;
    }

    #[Override]
    public function project(Projector $projector): MultiPoint
    {
        return new MultiPoint(
            $projector->getTargetCoordinateSystem($this->coordinateSystem),
            ...array_map(
                fn (Point $point) => $point->project($projector),
                $this->geometries,
            ),
        );
    }

    #[Override]
    protected function containedGeometryType(): string
    {
        return Point::class;
    }
}
