File batch/send-workcamp-approval-emails.php

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<?php

namespace SIW\Batch;

use SIW\HTML;
use SIW\Email\Template;
use SIW\WooCommerce\Import\Product as Import_Product;

/**
 * Versturen email voor goedkeuren Groepsprojecten
 * 
 * @copyright 2019 SIW Internationale Vrijwilligersprojecten
 * @since     3.0.0
 */
class Send_Workcamp_Approval_Emails extends Job {

    /**
     * {@inheritDoc}
     */
    protected $action = 'send_workcamp_approval_emails';

    /**
     * {@inheritDoc}
     */
    protected $name = 'versturen email goedkeuren groepsprojecten';

    /**
     * {@inheritDoc}
     */
    protected $category = 'groepsprojecten';

    /**
     * Selecteer categorieën
     *
     * @return array
     */
    protected function select_data() {

        $categories = get_terms( [
            'taxonomy'   => 'product_cat',
            'hide_empty' => true
        ]);
        
        if ( empty( $categories ) || is_wp_error( $categories ) ) {
            return false;
        }

        foreach ( $categories as $category ) {
            $data[] = [
                'slug' => $category->slug,
                'name' => $category->name,
            ];
        }

        return $data;
    }

    /**
     * Versturen van email
     *
     * @param string $category
     *
     * @return mixed
     */
    protected function task( $category ) {

        // Zoek te beoordelen projecten per category
        $products = wc_get_products([
            'return'   => 'ids',
            'category' => [ $category['slug'] ],
            'status'   => Import_Product::REVIEW_STATUS,
            'limit'    => -1,
        ]);
        if ( empty( $products ) ) {
            return false;
        }

        $supervisor = $this->get_supervisor();
        if ( false === $supervisor ) {
            return false; //TODO:logging
        }
        $responsible_user = $this->get_responsible_user( $category['slug'] );
        if ( false === $responsible_user ) {
            $responsible_user = $supervisor;
        }

        $admin_url = add_query_arg(
            [
                'post_type'   => 'product',
                'post_status' => Import_Product::REVIEW_STATUS,
                'product_cat' => $category['slug'],
            ],
            admin_url( 'edit.php' )
        );

        $message = 
            sprintf( 'Beste %s,', $responsible_user->user_firstname ) . BR2 .
            sprintf( 'Er wachten nog %d projecten in %s op jouw beoordeling.', count( $products ), $category['name'] ) . BR .
            sprintf( 'Klik %s om de projecten te bekijken.', HTML::generate_link( $admin_url, 'hier') );

        $template = new Template(
            [
                'subject'           => sprintf( 'Nog te beoordelen projecten in %s', $category['name'] ),
                'message'           => $message,
                'show_signature'    => true,
                'signature_name'    => $supervisor->display_name
            ]
        );

        $this->send_mail(
            $responsible_user,
            $supervisor, 
            sprintf( 'Nog te beoordelen projecten in %s', $category['name'] ),
            $template->generate()
        );
        $this->increment_processed_count();
        return false;
    }

    /**
     * Zoekt coordinator voor import Groepsprojecten
     * 
     * @return \WP_User|bool
     */
    protected function get_supervisor() {
        $workcamp_approval = siw_get_option( 'workcamp_approval' );
        if ( isset( $workcamp_approval['supervisor'] ) ) {
            return get_userdata( $workcamp_approval['supervisor'] );
        }
        return false;
    }

    /**
     * Zoekt verantwoordelijke voor specifiek continent
     *
     * @param string $category_slug
     * @return \WP_User|bool
     */
    protected function get_responsible_user( string $category_slug ) {
        $workcamp_approval = siw_get_option( 'workcamp_approval' );
        if ( isset( $workcamp_approval[ "responsible_{$category_slug}" ] ) ) {
            return get_userdata( $workcamp_approval[ "responsible_{$category_slug}" ] );
        }
        return false;
    }

    /**
     * Verstuur e-mail
     *
     * @param \WP_User $to
     * @param \WP_User $from
     * @param string $subject
     * @param string $message
     */
    protected function send_mail( \WP_User $to, \WP_User $from, string $subject, string $message ) {
        $headers = [
            'Content-Type: text/html; charset=UTF-8', 
            sprintf( 'From: %s <%s>', $from->display_name, $from->user_email ),
        ];
        if ( $to != $from ) {
            $headers[] = sprintf( 'CC: %s <%s>', $from->display_name, $from->user_email );
        }

        wp_mail(
            $to->user_email,
            $subject,
            $message,
            $headers
        );
    }

}

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