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<?php

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defined('ABSPATH') || exit;

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class Builder_Optin_Service_MailChimp extends Builder_Optin_Service {

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public static function get_id():string {

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return 'mailchimp';

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}

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public static function get_label():string {

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return __('MailChimp', 'themify');

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}

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public static function get_settings():array {

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$lists = self::get_lists();

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if (is_array($lists)) {

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return array(

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array(

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'id' => 'mailchimp_list',

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'type' => 'select',

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'label' => __('List', 'themify'),

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'options' => $lists

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array(

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'id' => 'mailchimp_db_opt',

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'type' => 'toggle_switch',

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'label' => __('Double opt-in', 'themify'),

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'options' => array(

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'on' => array('name' => 'on', 'value' => 'en'),

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'off' => array('name' => '', 'value' => 'dis')

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)

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)

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);

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} else {

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return array(

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array(

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'type' => 'message',

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'class' => 'tb_field_error_msg',

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'comment' => $lists

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)

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);

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}

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}

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public function get_options():array {//backward for fw 7.5

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return self::get_settings();

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}

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public static function get_global_options():array {

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return array(

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array(

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'id' => 'mailchimp_key',

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'type' => 'text',

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'label' => __('MailChimp API Key', 'themify'),

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'description' => sprintf(__('<a href="%s" target="_blank">Get an API key</a>', 'themify'), 'https://admin.mailchimp.com/account/api/'),

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);

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}

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private static function request($request, $method = 'GET', $args = array()) {

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$api_key = self::get_api_key();

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$api_key_pieces = explode('-', $api_key);

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$server = $api_key_pieces[1];

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$url = sprintf('https://%s.api.mailchimp.com/3.0/', $server);

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$url .= $request;

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$args+= array(

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'method' => $method,

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'headers' => array(

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'Authorization' => 'Basic ' . base64_encode('key:' . $api_key)

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);

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$response = wp_remote_request($url, $args);

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if (is_wp_error($response)) {

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return $response;

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} else {

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return json_decode(wp_remote_retrieve_body($response), true);

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}

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}

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protected static function request_list() {

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if (is_wp_error(( $data = self::request('lists')))) {

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return $data;

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}

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if (is_array($data) && isset($data['lists'])) {

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$list = array();

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foreach ($data['lists'] as $v) {

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$list[$v['id']] = $v['name'];

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}

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return $list;

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}

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return new WP_Error('list_error', __('Error retrieving lists.', 'themify'));

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}

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/**

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* Gets data from module and validates API key

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* @return bool|WP_Error

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public static function validate_data(array $fields_args):string {

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if (isset($fields_args['mailchimp_list'])) {

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$mc_lists = self::get_lists();

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if (is_string($mc_lists)) {

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return $mc_lists;

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}

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if (isset($mc_lists[$fields_args['mailchimp_list']])) {

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return '';

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}

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return __('Selected list not found.', 'themify');

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}

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else {

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return __('No list is selected.', 'themify');

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}

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}

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/**

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* Subscribe action

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* @doc https://developer.mailchimp.com/documentation/mailchimp/guides/manage-subscribers-with-the-mailchimp-api/#subscribe-an-address

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public static function subscribe(array $args) {

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$response = self::request(sprintf('lists/%s/members', $args['mailchimp_list']), 'POST', array(

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'body' => json_encode(array(

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'email_address' => $args['email'],

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'status' => isset($args['mailchimp_db_opt']) && $args['mailchimp_db_opt'] === 'on' ? 'pending' : 'subscribed',

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'merge_fields' => array(

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'FNAME' => $args['fname'],

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'LNAME' => $args['lname']

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))

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));

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if (is_wp_error($response)) {

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return $response;

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} elseif (isset($response['status'])) {

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if ('pending' === $response['status'] || 'subscribed' === $response['status']

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/* this user is already subscribed, no need to show any errors */ || ( 400 === $response['status'] && $response['title'] === 'Member Exists' )

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) {

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return true;

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} elseif (isset($response['errors'])) {

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return new WP_Error('error', $response['errors'][0]->message);

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}

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}

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}

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}

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