<?php
/**
 * Command-palette search across admin entities (docs/08 §2.11a).
 *
 * @package Bookline
 */

declare( strict_types=1 );

namespace Bookline\Application\System;

use Bookline\Application\Agent\ListAgentsHandler;
use Bookline\Application\Auth\AccessScope;
use Bookline\Application\Booking\ListBookingsHandler;
use Bookline\Application\Customer\ListCustomersHandler;
use Bookline\Application\Service\ListServicesHandler;
use Bookline\Domain\Shared\Clock;
use Bookline\Infrastructure\Settings\SettingsStore;

/**
 * Aggregates bookings, customers, services, agents and settings.
 *
 * @since 0.1.0
 */
final class AdminSearchHandler {

	/**
	 * Constructor.
	 *
	 * @param ListCustomersHandler $customers Customers.
	 * @param ListServicesHandler  $services  Services.
	 * @param ListAgentsHandler    $agents    Agents.
	 * @param ListBookingsHandler  $bookings  Bookings.
	 * @param SettingsStore        $settings  Settings.
	 * @param Clock                $clock     Clock.
	 */
	public function __construct(
		private readonly ListCustomersHandler $customers,
		private readonly ListServicesHandler $services,
		private readonly ListAgentsHandler $agents,
		private readonly ListBookingsHandler $bookings,
		private readonly SettingsStore $settings,
		private readonly Clock $clock,
	) {}

	/**
	 * Search.
	 *
	 * @param string      $query Query.
	 * @param AccessScope $scope Scope.
	 * @return array{items: list<array<string, string>>}
	 */
	public function handle( string $query, AccessScope $scope ): array {
		$q = strtolower( trim( $query ) );
		if ( strlen( $q ) < 1 ) {
			return [ 'items' => [] ];
		}

		$items = [];

		$customers = $this->customers->handle( 1, 20, $query );
		foreach ( $customers['items'] as $row ) {
			$label = (string) ( $row['display_name'] ?? '' );
			$id    = (int) ( $row['id'] ?? 0 );
			$items[] = [
				'id'    => 'customer-' . $id,
				'type'  => 'customer',
				'label' => $label . ' · customer',
				'route' => '/customers/' . $id,
			];
		}

		foreach ( $this->services->handle()['items'] as $row ) {
			$name = (string) ( $row['name'] ?? '' );
			if ( ! str_contains( strtolower( $name ), $q ) ) {
				continue;
			}
			$items[] = [
				'id'    => 'service-' . (string) ( $row['id'] ?? '' ),
				'type'  => 'service',
				'label' => $name . ' · service',
				'route' => '/catalogue',
			];
		}

		foreach ( $this->agents->handle( $scope )['items'] as $row ) {
			$name = (string) ( $row['display_name'] ?? '' );
			if ( ! str_contains( strtolower( $name ), $q ) ) {
				continue;
			}
			$items[] = [
				'id'    => 'agent-' . (string) ( $row['id'] ?? '' ),
				'type'  => 'agent',
				'label' => $name . ' · agent',
				'route' => '/catalogue',
			];
		}

		$from     = $this->clock->now()->modify( '-90 days' );
		$to       = $this->clock->now()->modify( '+90 days' );
		$bookings = $this->bookings->handle( $scope, $from, $to );
		foreach ( $bookings as $booking ) {
			$hay = strtolower(
				(string) $booking->id() . ' ' . $booking->uuid()->to_string() . ' ' . $booking->status()->value
			);
			if ( ! str_contains( $hay, $q ) ) {
				continue;
			}
			$items[] = [
				'id'    => 'booking-' . (string) $booking->id(),
				'type'  => 'booking',
				'label' => 'Booking #' . (string) $booking->id() . ' · ' . $booking->status()->value,
				'route' => '/bookings',
			];
			if ( count( $items ) > 40 ) {
				break;
			}
		}

		foreach ( $this->settings->all_public() as $key => $value ) {
			$hay = strtolower( $key . ' ' . ( is_scalar( $value ) ? (string) $value : '' ) );
			if ( ! str_contains( $hay, $q ) ) {
				continue;
			}
			$items[] = [
				'id'    => 'setting-' . $key,
				'type'  => 'setting',
				'label' => $key . ' · setting',
				'route' => '/settings',
			];
		}

		return [ 'items' => array_slice( $items, 0, 40 ) ];
	}
}