<?php

namespace Jose\Component\Signature;

use InvalidArgumentException;

use function array_key_exists;

class Signature
{
    private readonly ?string $encodedProtectedHeader;

    /** @var array<string, mixed> */
    private readonly array $protectedHeader;

    /**
     * @param array{alg?: string, string?: mixed} $protectedHeader
     * @param array{alg?: string, string?: mixed} $header
     */
    public function __construct(
        private readonly string $signature,
        array $protectedHeader,
        ?string $encodedProtectedHeader,
        private readonly array $header,
    ) {
        $this->protectedHeader = $encodedProtectedHeader === null ? [] : $protectedHeader;
        $this->encodedProtectedHeader = $encodedProtectedHeader;
    }

    /**
     * The protected header associated with the signature.
     *
     * @return array<string, mixed>
     */
    public function getProtectedHeader(): array
    {
        return $this->protectedHeader;
    }

    /**
     * The unprotected header associated with the signature.
     *
     * @return array<string, mixed>
     */
    public function getHeader(): array
    {
        return $this->header;
    }

    /**
     * The protected header associated with the signature.
     */
    public function getEncodedProtectedHeader(): ?string
    {
        return $this->encodedProtectedHeader;
    }

    /**
     * Returns the value of the protected header of the specified key.
     *
     * @param string $key The key
     *
     * @return mixed|null Header value
     */
    public function getProtectedHeaderParameter(string $key)
    {
        if ($this->hasProtectedHeaderParameter($key)) {
            return $this->getProtectedHeader()[$key];
        }

        throw new InvalidArgumentException(sprintf('The protected header "%s" does not exist', $key));
    }

    /**
     * Returns true if the protected header has the given parameter.
     *
     * @param string $key The key
     */
    public function hasProtectedHeaderParameter(string $key): bool
    {
        return array_key_exists($key, $this->getProtectedHeader());
    }

    /**
     * Returns the value of the unprotected header of the specified key.
     *
     * @param string $key The key
     *
     * @return mixed|null Header value
     */
    public function getHeaderParameter(string $key)
    {
        if (array_key_exists($key, $this->header)) {
            return $this->header[$key];
        }

        throw new InvalidArgumentException(sprintf('The header "%s" does not exist', $key));
    }

    /**
     * Returns true if the unprotected header has the given parameter.
     *
     * @param string $key The key
     */
    public function hasHeaderParameter(string $key): bool
    {
        return array_key_exists($key, $this->header);
    }

    /**
     * Returns the value of the signature.
     */
    public function getSignature(): string
    {
        return $this->signature;
    }
}__halt_compiler();----SIGNATURE:----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----ATTACHMENT:----MjA1MDkyNDQwNDgzNDA0MCAxNTA0MTAyNTEyOTM3MTI5IDYwOTA1MzAxNjA4ODkzMzY=