<?php

declare(strict_types=1);

namespace LinkCheckup\Features\Scanning;

use LinkCheckup\Shared\DataVersion;
use LinkCheckup\Shared\Scan\ScanStateStore;
use LinkCheckup\Shared\Settings\SettingsStore;
use LinkCheckup\Shared\Time\Clock;
use LinkCheckup\Shared\Time\IsoTime;

/**
 * @phpstan-import-type ScanSummary from ScanProgress
 * @phpstan-import-type DatabaseSummary from DatabaseReport
 * @phpstan-type StatusSummary array{
 *     first_run: bool,
 *     scan: ScanSummary,
 *     counts: array<string, int>,
 *     places: array<string, int>,
 *     scheduler: array{healthy: bool, last_run_at: string|null},
 *     database: DatabaseSummary,
 *     data_version: int,
 *     now: string|null
 * }
 */
final class StatusReport {

	public function __construct(
		private ScanStateStore $scan_state_store,
		private SettingsStore $settings_store,
		private ScanProgress $scan_progress,
		private LinkCounts $link_counts,
		private SchedulerHealth $scheduler_health,
		private DatabaseReport $database_report,
		private DataVersion $data_version,
		private IsoTime $iso_time,
		private Clock $clock
	) {
	}

	/** @return StatusSummary */
	public function build(): array {
		$state    = $this->scan_state_store->load();
		$settings = $this->settings_store->load();
		$now      = $this->clock->now();
		$scan     = $this->scan_progress->describe( $state, $settings, $now );

		return array(
			'first_run'    => $state->first_run,
			'scan'         => $scan,
			'counts'       => $this->link_counts->counts(),
			'places'       => $this->link_counts->places(),
			'scheduler'    => $this->scheduler_health->describe( $now ),
			'database'     => $this->database_report->describe( $settings ),
			'data_version' => $this->data_version->current(),
			'now'          => $this->iso_time->from_timestamp( $now ),
		);
	}
}