import { describe, expect, it } from 'vitest';
import { isSizeEligible, sizeGuideResolution } from './sizeEligibility';

const variants = [ { variant_id: '2', size_label: 'M', available: true } ];

describe( 'the WooCommerce size entry gate', () => {
	it( 'requires a configured guide with an available matching variation', () => {
		expect( isSizeEligible( { hasSizeGuide: false }, [ 'shirts' ], '1', variants ) ).toBe( false );
		expect( isSizeEligible(
			{ hasSizeGuide: true },
			[ 'shirts' ],
			'1',
			[ { ...variants[ 0 ], available: false } ]
		) ).toBe( false );
		expect( isSizeEligible( { hasSizeGuide: true, guides: [] }, [ 'shirts' ], '1', variants ) ).toBe( false );
		expect( isSizeEligible( {
			hasSizeGuide: true,
			guides: [ { id: 'g', categories: { categories: [] }, labels: [ 'S' ] } ],
		}, [ 'shirts' ], '1', variants ) ).toBe( false );
	} );

	it( 'honours include and exclude targeting independently from try-on', () => {
		const base = {
			hasSizeGuide: true,
			guides: [ { id: 'g', categories: { categories: [] }, labels: [ 'M' ] } ],
		};
		expect( isSizeEligible( { ...base, targeting: { mode: 'include', categories: [ 'shirts' ], productIds: [] } }, [ 'shirts' ], '1', variants ) ).toBe( true );
		expect( isSizeEligible( { ...base, targeting: { mode: 'exclude', categories: [ 'shirts' ], productIds: [] } }, [ 'shirts' ], '1', variants ) ).toBe( false );
	} );

	it( 'reports whether the applicable guide came from a collection or the shop default', () => {
		const size = {
			hasSizeGuide: true,
			guides: [ { id: 'g', categories: { categories: [ 'shirts' ] }, labels: [ 'M' ] } ],
		};
		expect( sizeGuideResolution( size, [ 'shirts' ], variants ) ).toBe( 'collection' );
	} );
} );