<?php

namespace AutomateWoo;

use AutomateWoo\Actions\PreviewableInterface;
use AutomateWoo\Actions\TestableInterface;
use AutomateWoo\Exceptions\InvalidArgument;
use AutomateWoo\Fields\EmailAddressWithName;
use AutomateWoo\Traits\ArrayValidator;

defined( 'ABSPATH' ) || exit;

/**
 * Abstract class for send email actions.
 *
 * @class Action_Send_Email_Abstract
 * @since 4.4.0
 */
abstract class Action_Send_Email_Abstract extends Action implements PreviewableInterface, TestableInterface {

	use ArrayValidator;

	/**
	 * Get the email type (html-template, html-raw, plain-text).
	 *
	 * @return string
	 */
	abstract public function get_email_type();

	/**
	 * Load admin props.
	 */
	public function load_admin_details() {
		$this->group = __( 'Email', 'automatewoo' );
	}

	/**
	 * Load fields.
	 */
	public function load_fields() {
		$to = new Fields\Text();
		$to->set_name( 'to' );
		$to->set_title( __( 'To', 'automatewoo' ) );
		$to->set_description( __( 'Enter emails here or use variables such as {{ customer.email }}. Multiple emails can be separated by commas. Add <b>--notracking</b> after an email to disable open and click tracking for that recipient.', 'automatewoo' ) );
		$to->set_placeholder( __( 'E.g. {{ customer.email }}, admin@example.org --notracking', 'automatewoo' ) );
		$to->set_variable_validation();
		$to->set_required();

		$cc = new Fields\Text();
		$cc->set_name( 'cc' );
		$cc->set_title( __( 'CC', 'automatewoo' ) );
		$cc->set_description( __( 'Enter CC email addresses here or use variables. Multiple emails can be separated by commas. Please note that CC recipients share the same tracking link as the "To" recipient. Tracking activity from CC will be recorded as activity from the main recipient.', 'automatewoo' ) );
		$cc->set_placeholder( __( 'E.g. {{ customer.email }}, admin@example.org', 'automatewoo' ) );
		$cc->set_variable_validation();

		$bcc = new Fields\Text();
		$bcc->set_name( 'bcc' );
		$bcc->set_title( __( 'BCC', 'automatewoo' ) );
		$bcc->set_description( __( 'Enter BCC email addresses here or use variables. Multiple emails can be separated by commas. Please note that BCC recipients share the same tracking link as the "To" recipient. Tracking activity from BCC will be recorded as activity from the main recipient.', 'automatewoo' ) );
		$bcc->set_placeholder( __( 'E.g. {{ customer.email }}, admin@example.org', 'automatewoo' ) );
		$bcc->set_variable_validation();

		$subject = new Fields\Text();
		$subject->set_name( 'subject' );
		$subject->set_title( __( 'Email subject', 'automatewoo' ) );
		$subject->set_variable_validation();
		$subject->set_required();

		$reply_to = ( new EmailAddressWithName() )
			->set_name( 'reply_to' )
			->set_title( __( 'Reply to', 'automatewoo' ) )
			->set_variable_validation()
			->set_description(
				__( 'Optionally set a reply-to email for the email. Please note that not all email delivery services support "Reply-To" email headers.', 'automatewoo' )
			);

		$this->add_field( $to );
		$this->add_field( $cc );
		$this->add_field( $bcc );
		$this->add_field( $reply_to );
		$this->add_field( $subject );
	}

	/**
	 * Get workflow email object for this action.
	 *
	 * Sets the email subject, content and reply_to from the action options.
	 *
	 * @param string $recipient
	 * @param string $content
	 *
	 * @return Workflow_Email
	 */
	public function get_workflow_email_object( string $recipient, string $content ) {
		$subject  = $this->get_option( 'subject', true );
		$reply_to = $this->get_option( 'reply_to', true );

		$email = new Workflow_Email( $this->workflow, $recipient, $subject, $content );
		$email->set_type( $this->get_email_type() );

		if ( is_array( $reply_to ) && $reply_to[0] && is_email( $reply_to[1] ) ) {
			$email->set_reply_to( sprintf( '%s <%s>', $reply_to[0], $reply_to[1] ) );
		}

		return $email;
	}


	/**
	 * Log the result of a send email attempt.
	 *
	 * @param \WP_Error|bool $result
	 */
	public function add_send_email_result_to_workflow_log( $result ) {
		if ( is_wp_error( $result ) ) {
			$this->workflow->log_action_email_error( $result, $this );
		} else {
			$this->workflow->log_action_note( $this, __( 'Email successfully sent.', 'automatewoo' ) );
		}
	}

	/**
	 * Validate the args used to run a test of this action.
	 *
	 * @since 5.2.0
	 *
	 * @param array $args
	 *
	 * @throws InvalidArgument If test args are invalid.
	 */
	protected function validate_test_args( array $args ) {
		if ( ! isset( $args['recipients'] ) ) {
			throw InvalidArgument::missing_required( 'recipients' );
		}
		$this->validate_array_of_strings( $args['recipients'] );
	}
}
