<?php

declare(strict_types=1);

namespace CuyZ\Valinor\Compiler\Native;

use CuyZ\Valinor\Compiler\Compiler;
use CuyZ\Valinor\Compiler\Node;

use function array_map;
use function implode;

/** @internal */
final class ClosureNode extends Node
{
    /** @var list<string> */
    private array $use = [];

    /** @var array<Node> */
    private array $nodes;

    public function __construct(Node ...$nodes)
    {
        $this->nodes = $nodes;
    }

    /**
     * @no-named-arguments
     * @param non-empty-string ...$names
     */
    public function uses(string ...$names): self
    {
        $self = clone $this;
        $self->use = array_map(fn (string $name) => '$' . $name, $names);

        return $self;
    }

    public function compile(Compiler $compiler): Compiler
    {
        $use = $this->use !== [] ? ' use (' . implode(', ', $this->use) . ')' : '';

        $body = $compiler->sub()->indent()->compile(...$this->nodes)->code();

        $code = <<<PHP
        function ()$use {
        $body
        }
        PHP;

        return $compiler->write($code);
    }
}