<?php
/* SendPulse integration for Green Popups */
if (!defined('UAP_CORE') && !defined('ABSPATH')) exit;
class lepopup_sendpulse_class {
	var $default_parameters = array(
		"client-id" => "",
		"client-secret" => "",
		"list" => "",
		"list-id" => "",
		"fields" => array(
			"email" => ""
		),
		"custom-names" => array(),
		"custom-values" => array()
	);
	var $fields_meta;
	function __construct() {
		$this->fields_meta = array(
			'email' => esc_html__('Email', 'lepopup')
		);
		if (is_admin()) {
			add_filter('lepopup_providers', array(&$this, 'providers'), 10, 1);
			add_action('wp_ajax_lepopup-sendpulse-settings-html', array(&$this, "admin_settings_html"));
			add_action('wp_ajax_lepopup-sendpulse-list', array(&$this, "admin_lists"));
		}
		add_filter('lepopup_integrations_do_sendpulse', array(&$this, 'front_submit'), 10, 2);
	}
	
	function providers($_providers) {
		if (!array_key_exists("sendpulse", $_providers)) $_providers["sendpulse"] = esc_html__('SendPulse', 'lepopup');
		return $_providers;
	}
	
	function admin_settings_html() {
		global $wpdb, $lepopup;
		if (current_user_can('manage_options')) {
			if (array_key_exists('data', $_REQUEST)) {
				$data = json_decode(base64_decode(trim(stripslashes($_REQUEST['data']))), true);
				if (is_array($data)) $data = array_merge($this->default_parameters, $data);
				else $data = $this->default_parameters;
			} else $data = $this->default_parameters;
			$checkbox_id = $lepopup->random_string();
			$html = '
			<div class="lepopup-properties-item">
				<div class="lepopup-properties-label">
					<label>'.esc_html__('REST API ID', 'lepopup').'</label>
				</div>
				<div class="lepopup-properties-tooltip">
					<i class="fas fa-question-circle lepopup-tooltip-anchor"></i>
					<div class="lepopup-tooltip-content">'.esc_html__('Enter your REST API ID.', 'lepopup').'</div>
				</div>
				<div class="lepopup-properties-content">
					<input type="text" name="client-id" value="'.esc_html($data['client-id']).'" />
					<label class="lepopup-integrations-description">'.sprintf(esc_html__('Find your REST API ID %shere%s (API tab).', 'lepopup'), '<a href="https://login.sendpulse.com/settings/" target="_blank">', '</a>').'</label>
				</div>
			</div>
			<div class="lepopup-properties-item">
				<div class="lepopup-properties-label">
					<label>'.esc_html__('REST API Secret', 'lepopup').'</label>
				</div>
				<div class="lepopup-properties-tooltip">
					<i class="fas fa-question-circle lepopup-tooltip-anchor"></i>
					<div class="lepopup-tooltip-content">'.esc_html__('Enter your REST API Secret.', 'lepopup').'</div>
				</div>
				<div class="lepopup-properties-content">
					<input type="text" name="client-secret" value="'.esc_html($data['client-secret']).'" />
					<label class="lepopup-integrations-description">'.sprintf(esc_html__('Find your REST API Secret %shere%s (API tab).', 'lepopup'), '<a href="https://login.sendpulse.com/settings/" target="_blank">', '</a>').'</label>
				</div>
			</div>
			<div class="lepopup-properties-item">
				<div class="lepopup-properties-label">
					<label>'.esc_html__('Address Book', 'lepopup').'</label>
				</div>
				<div class="lepopup-properties-tooltip">
					<i class="fas fa-question-circle lepopup-tooltip-anchor"></i>
					<div class="lepopup-tooltip-content">'.esc_html__('Select desired Address Book.', 'lepopup').'</div>
				</div>
				<div class="lepopup-properties-content">
					<div class="lepopup-properties-group lepopup-integrations-ajax-options">
						<input type="text" name="list" value="'.esc_html($data['list']).'" data-deps="client-id,client-secret" readonly="readonly" />
						<input type="hidden" name="list-id" value="'.esc_html($data['list-id']).'" />
					</div>
				</div>
			</div>
			<div class="lepopup-properties-item">
				<div class="lepopup-properties-label">
					<label>'.esc_html__('Fields', 'lepopup').'</label>
				</div>
				<div class="lepopup-properties-tooltip">
					<i class="fas fa-question-circle lepopup-tooltip-anchor"></i>
					<div class="lepopup-tooltip-content">'.esc_html__('Map popup fields to SendPulse fields.', 'lepopup').'</div>
				</div>
				<div class="lepopup-properties-content">
					<div class="lepopup-properties-pure lepopup-integrations-static-inline">
						<table>';
		foreach ($this->default_parameters['fields'] as $key => $value) {
			$html .= '
							<tr>
								<th>'.esc_html($this->fields_meta[$key]).'</td>
								<td>
									<div class="lepopup-input-shortcode-selector">
										<input type="text" name="fields['.$key.']" value="'.esc_html(array_key_exists($key, $data['fields']) ? $data['fields'][$key] : $value).'" class="widefat" />
										<div class="lepopup-shortcode-selector" onmouseover="lepopup_shortcode_selector_set(this)";><span><i class="fas fa-code"></i></span></div>
									</div>
									<label class="lepopup-integrations-description">'.esc_html($this->fields_meta[$key].' ('.$key.')').'</label>
								</td>
							</tr>';
		}
		$html .= '				
						</table>
					</div>
				</div>
			</div>
			<div class="lepopup-properties-item">
				<div class="lepopup-properties-label">
					<label>'.esc_html__('Custom Variables', 'lepopup').'</label>
				</div>
				<div class="lepopup-properties-tooltip">
					<i class="fas fa-question-circle lepopup-tooltip-anchor"></i>
					<div class="lepopup-tooltip-content">'.esc_html__('Configure SendPulse custom variables and map popup fields to them.', 'lepopup').'</div>
				</div>
				<div class="lepopup-properties-content">
					<div class="lepopup-properties-pure lepopup-integrations-static-inline lepopup-integrations-custom" data-names="custom-names" data-values="custom-values">
						<table>
							<tr>
								<th>'.esc_html__('Name', 'lepopup').'</th>
								<td>'.esc_html__('Value', 'lepopup').'</td>
								<td style="width: 32px;"></td>
							</tr>';
		$i = 0;
		foreach ($data['custom-names'] as $key => $value) {
			if (empty($value)) continue;
			$html .= '
							<tr>
								<th>
									<input type="text" value="'.esc_html($value).'" class="lepopup-integrations-custom-name widefat" data-custom="on" />
								</th>
								<td>
									<div class="lepopup-input-shortcode-selector">
										<input type="text" value="'.esc_html(array_key_exists($key, $data['custom-values']) ? $data['custom-values'][$key] : '').'" class="lepopup-integrations-custom-value widefat" data-custom="on" />
										<div class="lepopup-shortcode-selector" onmouseover="lepopup_shortcode_selector_set(this)";><span><i class="fas fa-code"></i></span></div>
									</div>
								</td>
								<td class="lepopup-middle-center">'.($i > 0 ? '<a class="lepopup-integrations-custom-remove" href="#" onclick="jQuery(this).closest(\'tr\').remove(); return false;"><i class="fas fa-trash-alt"></i></a>' : '').'</td>
							</tr>';
			$i++;
		}
		if ($i == 0) {
			$html .= '
							<tr>
								<th>
									<input type="text" value="" class="lepopup-integrations-custom-name widefat" data-custom="on" />
								</th>
								<td>
									<div class="lepopup-input-shortcode-selector">
										<input type="text" value="" class="lepopup-integrations-custom-value widefat" data-custom="on" />
										<div class="lepopup-shortcode-selector" onmouseover="lepopup_shortcode_selector_set(this)";><span><i class="fas fa-code"></i></span></div>
									</div>
								</td>
								<td></td>
							</tr>';
		}
		$html .= '				
							<tr style="display: none;" class="lepopup-integrations-custom-template">
								<th>
									<input type="text" value="" class="lepopup-integrations-custom-name widefat" data-custom="on" />
								</th>
								<td>
									<div class="lepopup-input-shortcode-selector">
										<input type="text" value="" class="lepopup-integrations-custom-value widefat" data-custom="on" />
										<div class="lepopup-shortcode-selector" onmouseover="lepopup_shortcode_selector_set(this)";><span><i class="fas fa-code"></i></span></div>
									</div>
								</td>
								<td class="lepopup-middle-center"><a class="lepopup-integrations-custom-remove" href="#" onclick="jQuery(this).closest(\'tr\').remove(); return false;"><i class="fas fa-trash-alt"></i></a></td>
							</tr>
							<tr>
								<td colspan="3">
									<a class="lepopup-admin-button lepopup-admin-button-gray lepopup-admin-button-small" href="#" onclick="return lepopup_integrations_custom_add(this);"><i class="fas fa-plus"></i><label>'.esc_html__('Add Custom Field', 'lepopup').'</label></a>
								</td>
							</tr>
						</table>
					</div>
				</div>
			</div>';
			$return_object = array();
			$return_object['status'] = 'OK';
			$return_object['html'] = $html;
			echo json_encode($return_object);
		}
		exit;
	}
	
	function admin_lists() {
		global $wpdb, $lepopup;
		$lists = array();
		if (current_user_can('manage_options')) {
			if (array_key_exists('deps', $_REQUEST)) {
				$deps = json_decode(base64_decode(trim(stripslashes($_REQUEST['deps']))), true);
				if (!is_array($deps)) $deps = null;
			} else $deps = null;

			if (!is_array($deps) || !array_key_exists('client-id', $deps) || empty($deps['client-id']) || !array_key_exists('client-secret', $deps) || empty($deps['client-secret'])) {
				$return_object = array('status' => 'ERROR', 'message' => esc_html__('Invalid API credentials.', 'lepopup'));
				echo json_encode($return_object);
				exit;
			}
			
			$result = $this->connect($deps['client-id'], $deps['client-secret'], 'addressbooks');
			if (is_array($result)) {
				if (empty($result)) {
					$return_object = array('status' => 'ERROR', 'message' => esc_html__('No lists found.', 'lepopup'));
					echo json_encode($return_object);
					exit;
				}
				foreach($result as $list) {
					if (is_array($list)) {
						if (array_key_exists('id', $list) && array_key_exists('name', $list)) {
							$lists[$list['id']] = $list['name'];
						}
					}
				}
			} else {
				$return_object = array('status' => 'ERROR', 'message' => esc_html__('Invalid API credentials.', 'lepopup'));
				echo json_encode($return_object);
				exit;
			}
			if (empty($lists)) {
				$return_object = array('status' => 'ERROR', 'message' => esc_html__('No lists found.', 'lepopup'));
				echo json_encode($return_object);
				exit;
			}
			
			$return_object = array();
			$return_object['status'] = 'OK';
			$return_object['items'] = $lists;
			echo json_encode($return_object);
		}
		exit;
	}

	function front_submit($_result, $_data) {
		global $wpdb, $lepopup;
		$data = array_merge($this->default_parameters, $_data);
		if (empty($data['client-id']) || empty($data['client-secret']) || empty($data['list-id'])) return $_result;
		if (empty($data['fields']) || !is_array($data['fields'])) return $_result;
		if (empty($data['fields']['email']) || !preg_match("/^[_a-z0-9-+]+(\.[_a-z0-9-+]+)*@[a-z0-9-]+(\.[a-z0-9-]+)*(\.[a-z]{2,19})$/i", $data['fields']['email'])) return $_result;

		$contact_details = array(
			'email' => $data['fields']['email']
		);
		if (!empty($data['custom-names'])) {
			foreach($data['custom-names'] as $key => $name) {
				if (!empty($name) && !empty($data['custom-values'][$key])) $contact_details['variables'][$name] = $data['custom-values'][$key];
			}
		}
		$post_data = array(
			'emails' => serialize(array($contact_details))
		);
		$result = $this->connect($data['client-id'], $data['client-secret'], 'addressbooks/'.$data['list-id'].'/emails', $post_data);
		return $_result;
	}
	
	function connect($_id, $_secret, $_path, $_data = array(), $_method = '') {
		$result = null;
		try {
			$data = array(
				'client_id' => $_id,
				'client_secret' => $_secret,
				'grant_type' => 'client_credentials'
			);
			$curl = curl_init('https://api.sendpulse.com/oauth/access_token');
			curl_setopt($curl, CURLOPT_RETURNTRANSFER, true);
			curl_setopt($curl, CURLOPT_POST, true);
			curl_setopt($curl, CURLOPT_POSTFIELDS, http_build_query($data));
			curl_setopt($curl, CURLOPT_TIMEOUT, 30);
			curl_setopt($curl, CURLOPT_RETURNTRANSFER, true);
			curl_setopt($curl, CURLOPT_FORBID_REUSE, true);
			curl_setopt($curl, CURLOPT_FRESH_CONNECT, true);
			//curl_setopt($curl, CURLOPT_FOLLOWLOCATION, true);
			curl_setopt($curl, CURLOPT_SSL_VERIFYHOST, false);
			curl_setopt($curl, CURLOPT_SSL_VERIFYPEER, false);
			$response = curl_exec($curl);
			curl_close($curl);
			$json = json_decode($response, true);
			if ($json && is_array($json) && array_key_exists('access_token', $json)) {
				$header = array(
					'Authorization: Bearer '.$json['access_token']
				);
				$curl = curl_init('https://api.sendpulse.com/'.ltrim($_path, '/'));
				curl_setopt($curl, CURLOPT_HTTPHEADER, $header);
				if (!empty($_data)) {
					curl_setopt($curl, CURLOPT_POST, true);
					curl_setopt($curl, CURLOPT_POSTFIELDS, http_build_query($_data));
				}
				if (!empty($_method)) {
					curl_setopt($curl, CURLOPT_CUSTOMREQUEST, $_method);
				}
				curl_setopt($curl, CURLOPT_TIMEOUT, 30);
				curl_setopt($curl, CURLOPT_RETURNTRANSFER, true);
				curl_setopt($curl, CURLOPT_FORBID_REUSE, true);
				curl_setopt($curl, CURLOPT_FRESH_CONNECT, true);
				//curl_setopt($curl, CURLOPT_FOLLOWLOCATION, true);
				curl_setopt($curl, CURLOPT_SSL_VERIFYHOST, false);
				curl_setopt($curl, CURLOPT_SSL_VERIFYPEER, false);
				$response = curl_exec($curl);
				curl_close($curl);
				$result = json_decode($response, true);
			}
		} catch (Exception $e) {
			$result = false;
		}
		return $result;
	}
}
$lepopup_sendpulse = new lepopup_sendpulse_class();
?>