/**
 * WordPress dependencies
 */
import { _x, sprintf } from '@safe-wordpress/i18n';

/**
 * External dependencies
 */
import type { ExperimentType } from '@nab/types';

/**
 * Internal dependencies
 */
import icon from './icon.svg';
import { Original } from './components/original';
import { Alternative } from '../post/components/alternative';

import type { ControlAttributes, AlternativeAttributes } from './types';

export const settings: ExperimentType<
	ControlAttributes,
	AlternativeAttributes
> = {
	name: 'nab/page' as const,
	category: 'page',
	title: _x( 'Page', 'text (experiment name)', 'nelio-ab-testing' ),
	description: _x(
		'Test alternative versions of a page',
		'user',
		'nelio-ab-testing'
	),
	icon,
	labels: {
		create: _x(
			'Add new A/B test of pages',
			'command',
			'nelio-ab-testing'
		),
	},
	supports: {
		alternativeApplication: ( control ) =>
			! control?.testAgainstExistingContent,
		alternativeEdition: {
			type: 'external',
			enabled: ( control ) => ! control.testAgainstExistingContent,
		},
		postTypes: 'page',
		scope: 'tested-post-with-consistency',
	},
	checks: {
		getControlError: ( control ) => {
			if ( ! control.postId ) {
				return _x(
					'Please select the page you want to test',
					'user',
					'nelio-ab-testing'
				);
			}

			return false;
		},
		getAlternativeError: ( alternative, letter, control ) => {
			if ( control.testAgainstExistingContent && ! alternative.postId ) {
				return sprintf(
					/* translators: %s: Letter of the variant. */
					_x(
						'Please select a page in variant %s',
						'user',
						'nelio-ab-testing'
					),
					letter
				);
			}

			return false;
		},
		isAlternativePreviewDisabled: ( alternative, control ) =>
			!! control.testAgainstExistingContent && ! alternative.postId,
	},
	help: {
		original: _x(
			'Page split tests help you to improve the conversion rate of your WordPress site by creating one or more variants of your pages. The control version (commonly known as the “A” version) is the already-existing page from your site (such as, for instance, the home page or a contact us page) you want to run the test on.',
			'user',
			'nelio-ab-testing'
		),
		alternative: _x(
			'You can create one or more variants of your tested page. By default, each variant you create will be an exact copy of the tested page. Click on the “Edit” link of each variant to tweak it as you please. When editing a variant, you can also overwrite it with the content of any existing page.',
			'user',
			'nelio-ab-testing'
		),
	},
	defaults: {
		original: {
			postType: 'page',
			postId: 0,
		},
		alternative: {
			name: '',
			postId: 0,
		},
	},
	views: {
		original: Original,
		alternative: Alternative,
	},
	expected: {
		pageViews: {
			average: 5000,
			median: 1000,
			p25: 500,
			p75: 3500,
		},
	},
};