<?php
/**
 * Weekdays condition.
 *
 * @package BlockSieve
 */

namespace BlockSieve\Conditions\Definitions;

use BlockSieve\Conditions\AbstractCondition;
use BlockSieve\Conditions\Context\Context;

/**
 * Passes when the current day of the week is selected (Mon = 1 … Sun = 7).
 */
final class WeekdaysCondition extends AbstractCondition {

	/**
	 * Gets the unique condition identifier.
	 *
	 * @return string
	 */
	public function id(): string {
		return 'weekdays';
	}

	/**
	 * Gets the translated human label.
	 *
	 * @return string
	 */
	public function label(): string {
		return __( 'Weekdays', 'blocksieve' );
	}

	/**
	 * Gets the translated description shown in the UI.
	 *
	 * @return string
	 */
	public function description(): string {
		return __( 'The current day of the week is selected (Mon = 1 … Sun = 7).', 'blocksieve' );
	}

	/**
	 * Gets the category used to group this condition in the UI.
	 *
	 * @return string
	 */
	public function category(): string {
		return 'date-time';
	}

	/**
	 * Gets the list of supported operator identifiers.
	 *
	 * @return string[]
	 */
	public function operators(): array {
		return array( 'in', 'not_in' );
	}

	/**
	 * Gets the JSON-schema-like description of the value field for the UI.
	 *
	 * @return array
	 */
	public function value_schema(): array {
		return array(
			'type'  => 'array',
			'items' => array(
				'type'    => 'integer',
				'minimum' => 1,
				'maximum' => 7,
			),
		);
	}

	/**
	 * Gets the default value for a newly created condition of this type.
	 *
	 * @return mixed
	 */
	public function default_value() {
		return array( 1, 2, 3, 4, 5 );
	}

	/**
	 * Evaluates the condition against the given context.
	 *
	 * @param Context $context  Request context value object.
	 * @param string  $operator Operator identifier.
	 * @param mixed   $value    Configured value.
	 * @return bool
	 */
	public function evaluate( Context $context, string $operator, $value ): bool {
		$days  = array_map( 'intval', is_array( $value ) ? $value : array( $value ) );
		$today = (int) $context->datetime->format( 'N' );
		$in    = in_array( $today, $days, true );

		return 'not_in' === $operator ? ! $in : $in;
	}
}