<?php

/**
 * Helper class for the GetResponse API.
 *
 * @since 1.5.4
 */
final class FLBuilderServiceGetResponse extends FLBuilderService {

	/**
	 * The ID for this service.
	 *
	 * @since 1.5.4
	 * @var string $id
	 */
	public $id = 'getresponse';

	/**
	 * @since 1.5.4
	 * @var object $api_instance
	 * @access private
	 */
	private $api_instance = null;

	/**
	 * Get an instance of the API.
	 *
	 * @since 1.5.4
	 * @param string $api_key A valid API key.
	 * @return object The API instance.
	 */
	public function get_api( $api_key ) {
		if ( $this->api_instance ) {
			return $this->api_instance;
		}
		if ( ! class_exists( 'GetResponse' ) ) {
			require_once FL_BUILDER_DIR . 'includes/vendor/getresponse/getresponse.php';
		}

		$this->api_instance = new GetResponse( $api_key );

		return $this->api_instance;
	}

	/**
	 * Test the API connection.
	 *
	 * @since 1.5.4
	 * @param array $fields {
	 *      @type string $api_key A valid API key.
	 * }
	 * @return array{
	 *      @type bool|string $error The error message or false if no error.
	 *      @type array $data An array of data used to make the connection.
	 * }
	 */
	public function connect( $fields = array() ) {
		$response = array(
			'error'  => false,
			'data'   => array(),
		);

		// Make sure we have an API key.
		if ( ! isset( $fields['api_key'] ) || empty( $fields['api_key'] ) ) {
			$response['error'] = __( 'Error: You must provide an API key.', 'fl-builder' );
		} // End if().
		else {

			$api  = $this->get_api( $fields['api_key'] );
			$ping = $api->ping();

			if ( ! $ping ) {
				$response['error'] = __( 'Error: Please check your API key.', 'fl-builder' );
			} else {
				$response['data'] = array(
					'api_key' => $fields['api_key'],
				);
			}
		}

		return $response;
	}

	/**
	 * Renders the markup for the connection settings.
	 *
	 * @since 1.5.4
	 * @return string The connection settings markup.
	 */
	public function render_connect_settings() {
		ob_start();

		FLBuilder::render_settings_field( 'api_key', array(
			'row_class'     => 'fl-builder-service-connect-row',
			'class'         => 'fl-builder-service-connect-input',
			'type'          => 'text',
			'label'         => __( 'API Key', 'fl-builder' ),
			'help'          => __( 'Your API key can be found in your GetResponse account under My Account > GetResponse API.', 'fl-builder' ),
			'preview'       => array(
				'type'          => 'none',
			),
		));

		return ob_get_clean();
	}

	/**
	 * Render the markup for service specific fields.
	 *
	 * @since 1.5.4
	 * @param string $account The name of the saved account.
	 * @param object $settings Saved module settings.
	 * @return array {
	 *      @type bool|string $error The error message or false if no error.
	 *      @type string $html The field markup.
	 * }
	 */
	public function render_fields( $account, $settings ) {
		$account_data   = $this->get_account_data( $account );
		$api            = $this->get_api( $account_data['api_key'] );
		$lists          = $api->getCampaigns();
		$response       = array(
			'error'         => false,
			'html'          => '',
		);

		if ( ! $lists ) {
			$response['error'] = __( 'Error: Please check your API key.', 'fl-builder' );
		} else {
			$response['html'] = $this->render_list_field( $lists, $settings );
		}

		return $response;
	}

	/**
	 * Render markup for the list field.
	 *
	 * @since 1.5.4
	 * @param array $lists List data from the API.
	 * @param object $settings Saved module settings.
	 * @return string The markup for the list field.
	 * @access private
	 */
	private function render_list_field( $lists, $settings ) {
		ob_start();

		$options = array(
			'' => __( 'Choose...', 'fl-builder' ),
		);

		foreach ( $lists as $id => $data ) {
			$options[ $id ] = $data->name;
		}

		FLBuilder::render_settings_field( 'list_id', array(
			'row_class'     => 'fl-builder-service-field-row',
			'class'         => 'fl-builder-service-list-select',
			'type'          => 'select',
			'label'         => _x( 'List', 'An email list from a third party provider.', 'fl-builder' ),
			'options'       => $options,
			'preview'       => array(
				'type'          => 'none',
			),
		), $settings);

		return ob_get_clean();
	}

	/**
	 * Subscribe an email address to GetResponse.
	 *
	 * @since 1.5.4
	 * @param object $settings A module settings object.
	 * @param string $email The email to subscribe.
	 * @param string $name Optional. The full name of the person subscribing.
	 * @return array {
	 *      @type bool|string $error The error message or false if no error.
	 * }
	 */
	public function subscribe( $settings, $email, $name = '' ) {
		$account_data = $this->get_account_data( $settings->service_account );
		$response     = array(
			'error' => false,
		);

		if ( ! $account_data ) {
			$response['error'] = __( 'There was an error subscribing to GetResponse. The account is no longer connected.', 'fl-builder' );
		} else {

			$api = $this->get_api( $account_data['api_key'] );

			try {

				// Fix, name should not be empty
				if ( ! $name ) {
					$names = explode( '@', $email );
					$name = $names[0];
				}

				// Check if email exists
				$get_contact = $api->getContactsByEmail( $email );

				// @codingStandardsIgnoreLine
				if ( $contact = (array) $get_contact ) {
					reset( $contact );
					$contact_id = key( $contact );

					$result = $api->setContactName( $contact_id, $name );
					$api->setContactCampaign( $contact_id, $settings->list_id );

					// New contact
				} else {
					$result = $api->addContact( $settings->list_id, $name, $email );
				}
			} catch ( Exception $e ) {
				$response['error'] = sprintf(
					__( 'There was an error subscribing to GetResponse. %s', 'fl-builder' ),
					$e->getMessage()
				);
			}
		}// End if().

		return $response;
	}
}
