<?php
/**
 * Wpdb implementation of WeeklyScheduleRepository.
 *
 * @package Bookline
 */

declare( strict_types=1 );

namespace Bookline\Infrastructure\Persistence;

use Bookline\Domain\Agent\ScheduleOwnerType;
use Bookline\Domain\Agent\WeeklySchedule;
use Bookline\Domain\Agent\WeeklyScheduleRepository;
use DateTimeImmutable;
use DateTimeZone;

/**
 * WpdbWeeklyScheduleRepository persistence adapter.
 *
 * @since 0.1.0
 */
final class WpdbWeeklyScheduleRepository extends AbstractWpdbRepository implements WeeklyScheduleRepository {

	/**
	 * Find by id.
	 *
	 * {@inheritDoc}
	 *
	 * @param int $id Parameter.
	 * @since 0.1.0
	 */
	public function find_by_id( int $id ): ?WeeklySchedule {
		$sql = $this->db->prepare(
			'SELECT * FROM %i WHERE `id` = %d LIMIT 1',
			$this->table( 'schedules' ),
			$id
		);
		$row = $this->db->get_row( $sql, ARRAY_A );
		return is_array( $row ) ? $this->hydrate( $row ) : null;
	}

	/**
	 * Find by owner.
	 *
	 * {@inheritDoc}
	 *
	 * @param ScheduleOwnerType $owner_type Parameter.
	 * @param int               $owner_id Parameter.
	 * @since 0.1.0
	 */
	public function find_by_owner( ScheduleOwnerType $owner_type, int $owner_id ): array {
		$sql = $this->db->prepare(
			'SELECT * FROM %i WHERE `owner_type` = %s AND `owner_id` = %d ORDER BY `day_of_week` ASC, `start_local` ASC',
			$this->table( 'schedules' ),
			$owner_type->value,
			$owner_id
		);
		$rows = $this->db->get_results( $sql, ARRAY_A );
		if ( ! is_array( $rows ) ) {
			return [];
		}
		$out = [];
		foreach ( $rows as $row ) {
			$out[] = $this->hydrate( $row );
		}
		return $out;
	}

	/**
	 * Save.
	 *
	 * {@inheritDoc}
	 *
	 * @param WeeklySchedule $schedule Parameter.
	 * @since 0.1.0
	 */
	public function save( WeeklySchedule $schedule ): void {
		$data = [
			'owner_type'  => $schedule->owner_type()->value,
			'owner_id'    => $schedule->owner_id(),
			'day_of_week' => $schedule->day_of_week(),
			'start_local' => $schedule->start_local(),
			'end_local'   => $schedule->end_local(),
			'valid_from'  => null === $schedule->valid_from() ? null : $schedule->valid_from()->format( 'Y-m-d' ),
			'valid_until' => null === $schedule->valid_until() ? null : $schedule->valid_until()->format( 'Y-m-d' ),
		];
		if ( null === $schedule->id() ) {
			$this->db->insert( $this->table( 'schedules' ), $data );
			$schedule->assign_id( $this->last_insert_id() );
			return;
		}
		$this->db->update( $this->table( 'schedules' ), $data, [ 'id' => $schedule->id() ] );
	}

	/**
	 * Delete.
	 *
	 * {@inheritDoc}
	 *
	 * @param WeeklySchedule $schedule Parameter.
	 * @since 0.1.0
	 */
	public function delete( WeeklySchedule $schedule ): void {
		if ( null === $schedule->id() ) {
			return;
		}
		$this->db->delete( $this->table( 'schedules' ), [ 'id' => $schedule->id() ] );
	}

	/**
	 * Map a database row to an entity.
	 *
	 * @param array<string, mixed> $row Database row.
	 */
	private function hydrate( array $row ): WeeklySchedule {
		$utc = new DateTimeZone( 'UTC' );
		return new WeeklySchedule(
			(int) $row['id'],
			ScheduleOwnerType::from( (string) $row['owner_type'] ),
			(int) $row['owner_id'],
			(int) $row['day_of_week'],
			(string) $row['start_local'],
			(string) $row['end_local'],
			null !== $row['valid_from'] ? new DateTimeImmutable( (string) $row['valid_from'] . ' 00:00:00', $utc ) : null,
			null !== $row['valid_until'] ? new DateTimeImmutable( (string) $row['valid_until'] . ' 00:00:00', $utc ) : null,
		);
	}
}