/**
 * 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 './components/alternative';

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

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

			return false;
		},
		isAlternativePreviewDisabled: ( alternative, control ) =>
			!! control.testAgainstExistingContent && ! alternative.postId,
	},
	help: {
		original: _x(
			'Post split tests help you to improve the conversion rate of your WordPress blog by creating one or more variants of your posts. The control version (commonly known as the “A” version) is the already-existing post from your blog you want to run the test on.',
			'user',
			'nelio-ab-testing'
		),
		alternative: _x(
			'You can create one or more variants of your tested post. By default, each variant you create will be an exact copy of the tested post. 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 post.',
			'user',
			'nelio-ab-testing'
		),
	},
	defaults: {
		original: {
			postType: 'post',
			postId: 0,
		},
		alternative: {
			name: '',
			postId: 0,
		},
	},
	views: {
		original: Original,
		alternative: Alternative,
	},
};