import { __ } from '@wordpress/i18n';
import type { Link, LinkStatusFilter } from '../api/types/links';

export type Problem = 'broken' | 'blocked' | 'moved';

export const PROBLEMS: readonly Problem[] = [ 'broken', 'blocked', 'moved' ];

export function problemOf( link: Pick< Link, 'verdict' > ): Problem {
	if ( link.verdict === 'blocked' || link.verdict === 'moved' ) {
		return link.verdict;
	}

	return 'broken';
}

export function isFixable(
	link: Pick< Link, 'verdict' | 'ignored' >
): boolean {
	return (
		! link.ignored &&
		PROBLEMS.some( ( problem ) => problem === link.verdict )
	);
}

export function isProblem(
	routeValue: string | undefined
): routeValue is Problem {
	return PROBLEMS.some( ( problem ) => problem === routeValue );
}

export function toStatusFilter(
	routeValue: string | undefined
): LinkStatusFilter {
	if ( isProblem( routeValue ) ) {
		return routeValue;
	}

	return 'problems';
}

export function problemLabel( problem: Problem ): string {
	switch ( problem ) {
		case 'blocked':
			return __( 'Could not check', 'aiplaz-link-checkup' );
		case 'moved':
			return __( 'Moved', 'aiplaz-link-checkup' );
		case 'broken':
			return __( 'Broken', 'aiplaz-link-checkup' );
	}
}