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| <?php | |
| namespace Popy\Calendar\Parser; | |
| use DateTimeZone; | |
| use DateTimeImmutable; | |
| use Popy\Calendar\ParserInterface; | |
| use Popy\Calendar\ConverterInterface; | |
| use Popy\Calendar\ValueObject\DateRepresentation\Date; | |
| /** | |
| * Agnostic composable parser implementation. | |
| */ | |
| class AgnosticParser implements ParserInterface | |
| { | |
| /** | |
| * Format parser. | |
| * | |
| * @var FormatParserInterface | |
| */ | |
| protected $parser; | |
| /** | |
| * Result mapper. | |
| * | |
| * @var ResultMapperInterface | |
| */ | |
| protected $mapper; | |
| /** | |
| * Date converter. | |
| * | |
| * @var ConverterInterface | |
| */ | |
| protected $converter; | |
| /** | |
| * Class constructor. | |
| * | |
| * @param FormatParserInterface $parser Format parser. | |
| * @param ResultMapperInterface $mapper Result mapper. | |
| * @param ConverterInterface $converter Date converter. | |
| */ | |
| public function __construct(FormatParserInterface $parser, ResultMapperInterface $mapper, ConverterInterface $converter) | |
| { | |
| $this->parser = $parser; | |
| $this->mapper = $mapper; | |
| $this->converter = $converter; | |
| } | |
| /** | |
| * @inheritDoc | |
| */ | |
| public function parse($input, $format, DateTimeZone $timezone = null) | |
| { | |
| // Parsing | |
| $date = $this->parseToDateRepresentation($input, $format, $timezone); | |
| // Converting back if needed/possible | |
| if (null !== $date && null === $date->getUnixTime()) { | |
| $date = $this->converter->from($date); | |
| } | |
| if (null === $date) { | |
| return; | |
| } | |
| $timestamp = sprintf( | |
| '%d.%06d UTC', | |
| $date->getUnixTime(), | |
| $date->getUnixMicroTime() | |
| ); | |
| $result = DateTimeImmutable::createFromFormat('U.u e', $timestamp); | |
| if (false === $result) { | |
| return; | |
| } | |
| return $result->setTimezone($date->getTimezone()) ?: null; | |
| } | |
| /** | |
| * @inheritDoc | |
| */ | |
| public function parseToDateRepresentation($input, $format, DateTimeZone $timezone = null) | |
| { | |
| if (null === $lexer = $this->parser->parseFormat($format)) { | |
| return; | |
| } | |
| if (null === $parts = $lexer->tokenizeDate($input)) { | |
| return; | |
| } | |
| $date = Date::buildFromTimezone($timezone); | |
| if (null === $date = $this->mapper->map($parts, $date)) { | |
| return; | |
| } | |
| return $date; | |
| } | |
| } |