<?php

declare(strict_types=1);

namespace VPlugins\WPCloudClient\Mail;

use VPlugins\WPCloudClient\Settings\SettingsRepository;

/**
 * Exposes a settings toggle to disable the wp_mail interceptor.
 *
 * Administrators can turn this off when a third-party SMTP plugin (e.g.
 * SendGrid, Mailgun, WP Mail SMTP) is already handling email delivery and the
 * interception would interfere.
 *
 * Ported from wsp-bootstrapper: plugins/includes/wsp-mail-settings.php
 */
final class MailSettings {

	private const SECTION    = 'wpcc_section_mail';
	private const SLUG       = 'wpcc-settings';
	private const OPTION_KEY = 'wpcc_settings';

	/**
	 * Constructor.
	 *
	 * @param SettingsRepository $settings Settings repository instance.
	 */
	public function __construct(
		private readonly SettingsRepository $settings,
	) {}

	/**
	 * Register the mail settings section and field.
	 */
	public function register(): void {
		add_settings_section(
			self::SECTION,
			__( 'Email History', 'wp-cloud-client' ),
			static fn () => printf(
				'<p>%s</p>',
				esc_html__(
					'WP Cloud Client intercepts outgoing emails to provide an Email History log in the dashboard. Disable this if you are using a third-party SMTP plugin that should handle all mail delivery.',
					'wp-cloud-client',
				),
			),
			self::SLUG,
		);

		add_settings_field(
			'disable_mail_interceptor',
			__( 'Disable Email Interceptor', 'wp-cloud-client' ),
			function (): void {
				$checked = $this->isDisabled();
				printf(
					'<label><input type="checkbox" id="disable_mail_interceptor" name="%s[disable_mail_interceptor]" value="1" %s /> %s</label>',
					esc_attr( self::OPTION_KEY ),
					checked( $checked, true, false ),
					esc_html__( 'Disable email interception (Email History will not be available)', 'wp-cloud-client' ),
				);
			},
			self::SLUG,
			self::SECTION,
		);
	}

	/**
	 * Whether the mail interceptor has been disabled in settings.
	 *
	 * @return bool
	 */
	public function isDisabled(): bool {
		return (bool) ( $this->settings->all()['disable_mail_interceptor'] ?? false );
	}

	/**
	 * Sanitize the disable_mail_interceptor checkbox value.
	 * Called from SettingsPage::sanitize() before saving.
	 *
	 * @param mixed $input Raw form input.
	 * @return string '1' if checked, '' otherwise.
	 */
	public function sanitizeField( mixed $input ): string {
		return ! empty( $input['disable_mail_interceptor'] ) ? '1' : '';
	}
}