import { __, sprintf } from '@wordpress/i18n';
import type { Counts, Scan } from '../../shared/api/types/status';
import { formatNumber } from '../../shared/lib/numbers';
import { linksPhrase } from '../../shared/text/countedPhrases';
import { timeAgo } from '../../shared/lib/timeAgo';
import { SECONDS_PER_MINUTE } from '../../shared/lib/timeUnits';

const SECONDS_SHOWN_BELOW = 90;

export function scanTimeLeftText( scan: Scan ): string {
	if ( scan.state === 'paused' || scan.eta_seconds === null ) {
		return __( 'Waiting', 'aiplaz-link-checkup' );
	}

	if ( scan.eta_seconds < SECONDS_SHOWN_BELOW ) {
		return sprintf(
			/* translators: %s: number of seconds */
			__( 'About %s s left', 'aiplaz-link-checkup' ),
			formatNumber( scan.eta_seconds )
		);
	}

	return sprintf(
		/* translators: %s: number of minutes */
		__( 'About %s min left', 'aiplaz-link-checkup' ),
		formatNumber( Math.round( scan.eta_seconds / SECONDS_PER_MINUTE ) )
	);
}

export function scanActivitySentence( scan: Scan ): string {
	if ( scan.phase === 'reading' ) {
		return __( 'Reading your posts and pages.', 'aiplaz-link-checkup' );
	}

	return sprintf(
		/* translators: %s: number of links, for example "3 links" */
		__(
			'Checking %s at a time. You can close this page.',
			'aiplaz-link-checkup'
		),
		linksPhrase( scan.parallel )
	);
}

export function lastScanText(
	scan: Scan,
	counts: Counts,
	now: number
): string {
	if ( scan.finished_at === null || scan.finished_at === '' ) {
		return __( 'No full scan has finished yet.', 'aiplaz-link-checkup' );
	}

	return sprintf(
		/* translators: 1: when the scan finished, for example "2 hours ago", 2: number of links, 3: number of posts and pages */
		__(
			'Last full scan finished %1$s. It checked %2$s links in %3$s posts and pages.',
			'aiplaz-link-checkup'
		),
		timeAgo( scan.finished_at, now ),
		formatNumber( counts.total ),
		formatNumber( scan.posts_count )
	);
}