<?php
namespace Automattic\WooCommerce\StoreApi\Utilities;

/**
 * Util class for local pickup related functionality, this contains methods that need to be accessed from places besides
 * the ShippingController, i.e. the OrderController.
 */
class LocalPickupUtils {

	/**
	 * Gets the local pickup location settings.
	 *
	 * @param string $context The context for the settings. Defaults to 'view'.
	 */
	public static function get_local_pickup_settings( $context = 'view' ) {
		$pickup_location_settings = get_option(
			'woocommerce_pickup_location_settings',
			[
				'enabled'    => 'no',
				'title'      => __( 'Pickup', 'woocommerce' ),
				'cost'       => '',
				'tax_status' => 'taxable',
			]
		);

		if ( empty( $pickup_location_settings['title'] ) ) {
			$pickup_location_settings['title'] = __( 'Pickup', 'woocommerce' );
		}

		if ( empty( $pickup_location_settings['enabled'] ) ) {
			$pickup_location_settings['enabled'] = 'no';
		}

		if ( ! isset( $pickup_location_settings['cost'] ) ) {
			$pickup_location_settings['cost'] = '';
		}

		// Return settings as is if we're editing them.
		if ( 'edit' === $context ) {
			return $pickup_location_settings;
		}

		// All consumers of this turn it into a bool eventually. Doing it here removes the need for that.
		$pickup_location_settings['enabled'] = wc_string_to_bool( $pickup_location_settings['enabled'] );
		$pickup_location_settings['title']   = wc_clean( $pickup_location_settings['title'] );

		return $pickup_location_settings;
	}

	/**
	 * Checks if WC Blocks local pickup is enabled.
	 *
	 * @return bool True if local pickup is enabled.
	 */
	public static function is_local_pickup_enabled() {
		// Get option directly to avoid early translation function call.
		// See https://github.com/woocommerce/woocommerce/pull/47113.
		$pickup_location_settings = get_option(
			'woocommerce_pickup_location_settings',
			[
				'enabled' => 'no',
			]
		);

		if ( empty( $pickup_location_settings['enabled'] ) ) {
			$pickup_location_settings['enabled'] = 'no';
		}

		return wc_string_to_bool( $pickup_location_settings['enabled'] );
	}
	/**
	 * Gets a list of payment method ids that support the 'local-pickup' feature.
	 *
	 * @return string[] List of payment method ids that support the 'local-pickup' feature.
	 */
	public static function get_local_pickup_method_ids() {
		$all_methods_supporting_local_pickup = array_reduce(
			WC()->shipping()->get_shipping_methods(),
			function ( $methods, $method ) {
				if ( $method->supports( 'local-pickup' ) ) {
					$methods[] = $method->id;
				}
				return $methods;
			},
			array( 'local_pickup' )
		);

		// We use array_values because this will be used in JS, so we don't need the (numerical) keys.
		return array_values(
		// This array_unique is necessary because WC()->shipping()->get_shipping_methods() can return duplicates.
			array_unique(
				$all_methods_supporting_local_pickup
			)
		);
	}

	/**
	 * Checks if a method is a local pickup method.
	 *
	 * @param string $method_id The method id to check.
	 * @return bool True if the method is a local pickup method.
	 */
	public static function is_local_pickup_method( $method_id ) {
		return in_array( $method_id, self::get_local_pickup_method_ids(), true );
	}

	/**
	 * Gets local pickup locations for block editor preview, including placeholder
	 * locations for custom shipping methods that support local pickup.
	 *
	 * This method combines the built-in pickup_location locations with placeholder
	 * entries for any other shipping methods that declare 'local-pickup' support.
	 * This allows custom shipping methods to appear in the block editor preview.
	 *
	 * @return array Array of pickup locations with the following structure:
	 *               - 'name' (string) The location name.
	 *               - 'enabled' (bool) Whether the location is enabled.
	 *               - 'address' (array) Address array with keys: address_1, city, state, postcode, country.
	 *               - 'details' (string) Additional details about the location.
	 *               - 'method_id' (string) The shipping method ID this location belongs to.
	 *
	 * @since 10.5.0
	 */
	public static function get_local_pickup_method_locations() {
		// Get the built-in pickup locations.
		$builtin_locations = get_option( 'pickup_location_pickup_locations', array() );

		// Add method_id to built-in locations.
		foreach ( $builtin_locations as $index => $location ) {
			$builtin_locations[ $index ]['method_id'] = 'pickup_location';
		}

		// Get all shipping methods that support local-pickup.
		$shipping_methods = WC()->shipping()->get_shipping_methods();

		// Get store base address for placeholder locations.
		$base_country = WC()->countries->get_base_country();
		$base_state   = WC()->countries->get_base_state();

		$custom_method_locations = array();

		foreach ( $shipping_methods as $method ) {
			// Skip if method doesn't support local-pickup.
			if ( ! $method->supports( 'local-pickup' ) ) {
				continue;
			}

			// Skip the built-in pickup_location method (already handled above).
			if ( 'pickup_location' === $method->id ) {
				continue;
			}

			// Create a placeholder location for this custom method.
			$custom_method_locations[] = array(
				'name'      => $method->get_method_title(),
				'enabled'   => true,
				'address'   => array(
					'address_1' => '123 Main Street',
					'city'      => 'Sample City',
					'state'     => $base_state,
					'postcode'  => '12345',
					'country'   => $base_country,
				),
				'details'   => sprintf(
					/* translators: %s: shipping method title */
					__( 'Pickup location for %s', 'woocommerce' ),
					$method->get_method_title()
				),
				'method_id' => $method->id,
			);
		}

		return array_merge( $builtin_locations, $custom_method_locations );
	}
}