<?php
if ( ! class_exists( 'Hustle_Icontact_Form_Settings' ) ) :

	/**
	 * Class Hustle_Icontact_Form_Settings
	 * Form Settings iContact Process
	 */
	class Hustle_Icontact_Form_Settings extends Hustle_Provider_Form_Settings_Abstract {

		/**
		 * Options that must be set in order to consider the integration as "connected" to the form.
		 *
		 * @since 4.2.0
		 * @var array
		 */
		protected $form_completion_options = array( 'selected_global_multi_id', 'list_id', 'list_name' );

		/**
		 * For settings Wizard steps
		 *
		 * @since 3.0.5
		 * @return array
		 */
		public function form_settings_wizards() {
			// already filtered on Abstract
			// numerical array steps
			return array(
				// 0
				array(
					'callback'     => array( $this, 'first_step_callback' ),
					'is_completed' => array( $this, 'first_step_is_completed' ),
				),
				// 1
				array(
					'callback'     => array( $this, 'second_step_callback' ),
					'is_completed' => array( $this, 'second_step_is_completed' ),
				),
			);
		}

		/**
		 * Check if step is completed
		 *
		 * @since 3.0.5
		 * @return bool
		 */
		public function first_step_is_completed() {
			$this->addon_form_settings = $this->get_form_settings_values();
			if ( ! isset( $this->addon_form_settings['list_id'] ) ) {
				// preliminary value
				$this->addon_form_settings['list_id'] = 0;

				return false;
			}

			if ( empty( $this->addon_form_settings['list_id'] ) ) {
				return false;
			}

			return true;
		}

		/**
		 * Returns all settings and conditions for 1st step of iContact settings
		 *
		 * @since 3.0.5
		 *
		 * @param array $submitted_data
		 * @return array
		 */
		public function first_step_callback( $submitted_data ) {
			$this->addon_form_settings = $this->get_form_settings_values();
			$current_data              = array(
				'list_id'    => '',
				'auto_optin' => '',
			);
			$current_data              = $this->get_current_data( $current_data, $submitted_data );
			$is_submit                 = ! empty( $submitted_data['hustle_is_submit'] );

			if ( $is_submit && empty( $submitted_data['list_id'] ) ) {
				$error_message = __( 'The list is required.', 'hustle' );
			}

			$options = $this->get_first_step_options( $current_data );

			$step_html  = Hustle_Provider_Utils::get_integration_modal_title_markup( __( 'Choose list', 'hustle' ), __( 'Choose the list you want to send form data to.', 'hustle' ) );
			$step_html .= Hustle_Provider_Utils::get_html_for_options( $options );

			if ( ! isset( $error_message ) ) {
				$has_errors = false;
			} else {
				$step_html .= '<span class="sui-error-message">' . $error_message . '</span>';
				$has_errors = true;
			}

			$buttons = array(
				'disconnect' => array(
					'markup' => Hustle_Provider_Utils::get_provider_button_markup( __( 'Disconnect', 'hustle' ), 'sui-button-ghost', 'disconnect_form', true ),
				),
				'save'       => array(
					'markup' => Hustle_Provider_Utils::get_provider_button_markup( __( 'Continue', 'hustle' ), '', 'next', true ),
				),
			);

			$response = array(
				'html'       => $step_html,
				'buttons'    => $buttons,
				'has_errors' => $has_errors,
			);

			// Save only after the step has been validated and there are no errors
			if ( $is_submit && ! $has_errors ) {
				// Save additional data for submission's entry
				if ( ! empty( $current_data['list_id'] ) ) {
					$current_data['list_name'] = ! empty( $this->lists[ $current_data['list_id'] ] )
						? $this->lists[ $current_data['list_id'] ] . ' (' . $current_data['list_id'] . ')' : $current_data['list_id'];
				}
				$this->save_form_settings_values( $current_data );
			}

			return $response;
		}

		/**
		 * Refresh list array via API
		 *
		 * @param object $provider
		 * @param string $global_multi_id
		 * @return array
		 */
		public function refresh_global_multi_lists( $provider, $global_multi_id ) {
			$app_id   = $provider->get_setting( 'app_id', '', $global_multi_id );
			$username = $provider->get_setting( 'username', '', $global_multi_id );
			$password = $provider->get_setting( 'password', '', $global_multi_id );
			$api      = $provider::api( $app_id, $password, $username );

			if ( empty( $api ) ) {
				return array();
			}

			$lists  = array();
			$limit  = 20;
			$offset = 0;

			do {
				$current_total = 0;
				$_lists        = $api->get_lists( $offset );

				if ( ! is_wp_error( $_lists ) && count( $_lists ) && isset( $_lists['lists'] ) ) {
					$current_total = count( $_lists['lists'] );
					$lists        += wp_list_pluck( $_lists['lists'], 'name', 'listId' );
				}

				$offset += $limit;
			} while ( $current_total === $limit );

			return $lists;
		}

		/**
		 * Return an array of options used to display the settings of the 1st step.
		 *
		 * @since 4.0
		 *
		 * @param array $submitted_data
		 * @return array
		 */
		private function get_first_step_options( $submitted_data ) {
			$provider = $this->provider;
			$settings = $this->get_form_settings_values( false );

			$global_multi_id = $settings['selected_global_multi_id'];
			$auto_optin      = $provider->get_setting( 'auto_optin', '', $global_multi_id );

			$saved_auto_optin        = 'pending' === $auto_optin ? 'pending' : '';
			$checked                 = ! isset( $submitted_data['auto_optin'] ) ? $saved_auto_optin : $submitted_data['auto_optin'];
			$is_double_optin_enabled = 'pending' === $checked;

			$lists         = $this->get_global_multi_lists();
			$this->lists   = $lists;
			$selected_list = $this->get_selected_list( $submitted_data );

			$options = array(
				array(
					'type'     => 'wrapper',
					'elements' => array(
						'label'   => array(
							'type'  => 'label',
							'for'   => 'list_id',
							'value' => __( 'Email List', 'hustle' ),
						),
						'wrapper' => array(
							'type'                 => 'wrapper',
							'class'                => 'hui-select-refresh',
							'is_not_field_wrapper' => true,
							'elements'             => array(
								'lists'   => array(
									'type'     => 'select',
									'id'       => 'list_id',
									'name'     => 'list_id',
									'class'    => 'sui-select',
									'value'    => $selected_list,
									'selected' => $selected_list,
									'options'  => $lists,
								),
								'refresh' => array(
									'type'  => 'raw',
									'value' => Hustle_Provider_Utils::get_provider_button_markup( __( 'Refresh', 'hustle' ), '', 'refresh_list', true ),
								),
							),
						),
					),
				),
				array(
					'type'     => 'wrapper',
					'style'    => 'margin-bottom: 0;',
					'elements' => array(
						array(
							'type'  => 'label',
							'for'   => 'list_id',
							'value' => __( 'Double Opt-in', 'hustle' ),
						),
						array(
							'type'       => 'checkbox',
							'name'       => 'auto_optin',
							'id'         => 'auto_optin',
							'class'      => 'sui-checkbox-sm',
							'value'      => 'pending',
							'attributes' => array(
								'checked' => $is_double_optin_enabled ? 'checked' : '',
							),
							'label'      => __( 'Enable double opt-in for this list.', 'hustle' ),
						),
					),
				),
			);

			return $options;
		}

		/**
		 * Returns all settings and conditions for 2nd step of iContact settings
		 *
		 * @since 3.0.5
		 *
		 * @param array $submitted_data
		 * @return array
		 */
		public function second_step_callback( $submitted_data ) {

			$this->addon_form_settings = $this->get_form_settings_values( false );

			// If the Double Opt-in option is disabled, close the modal. No need for this step.
			if ( empty( $this->addon_form_settings['auto_optin'] ) ) {
				return array(
					'html'         => '',
					'notification' => array(
						'type' => 'success',
						'text' => '<strong>' . $this->provider->get_title() . '</strong> ' . __( 'successfully connected to your form', 'hustle' ),
					),
					'is_close'     => true,
				);
			}
			$current_data = array(
				'confirmation_message_id' => '',
			);

			$current_data = $this->get_current_data( $current_data, $submitted_data );
			$is_submit    = ! empty( $submitted_data['hustle_is_submit'] );

			if ( $is_submit && empty( $submitted_data['confirmation_message_id'] ) ) {
				$error_message = __( 'The confirmation message is required when double opt-in is enabled.', 'hustle' );
			}

			$options = $this->get_second_step_options( $current_data );

			$step_html  = Hustle_Provider_Utils::get_integration_modal_title_markup( __( 'Choose confirmation message', 'hustle' ), '' );
			$step_html .= Hustle_Provider_Utils::get_html_for_options( $options );

			if ( ! isset( $error_message ) ) {
				$has_errors = false;
			} else {
				$step_html .= '<span class="sui-error-message">' . $error_message . '</span>';
				$has_errors = true;
			}

			$buttons = array(
				'cancel' => array(
					'markup' => Hustle_Provider_Utils::get_provider_button_markup(
						__( 'Back', 'hustle' ),
						'',
						'prev',
						true
					),
				),
				'save'   => array(
					'markup' => Hustle_Provider_Utils::get_provider_button_markup(
						__( 'Save', 'hustle' ),
						'',
						'next',
						true
					),
				),
			);

			$response = array(
				'html'       => $step_html,
				'buttons'    => $buttons,
				'has_errors' => $has_errors,
			);

			// Save only after the step has been validated and there are no errors
			if ( $is_submit && ! $has_errors ) {
				// Save additional data for submission's entry
				if ( ! empty( $current_data['confirmation_message_id'] ) ) {
					$current_data['confirmation_message_name'] = ! empty( $options['list_id_setup']['elements']['choose_email_list']['options'][ $current_data['confirmation_message_id'] ]['label'] )
						? $options['list_id_setup']['elements']['choose_email_list']['options'][ $current_data['confirmation_message_id'] ]['label'] : '';
				}
				$this->save_form_settings_values( $current_data );
			}

			return $response;
		}

		/**
		 * Return an array of options used to display the settings of the 1st step.
		 *
		 * @since 4.0
		 *
		 * @param array $submitted_data
		 * @return array
		 */
		private function get_second_step_options( $submitted_data ) {
			$provider = $this->provider;
			$settings = $this->get_form_settings_values( false );

			$global_multi_id = $settings['selected_global_multi_id'];
			$app_id          = $provider->get_setting( 'app_id', '', $global_multi_id );
			$username        = $provider->get_setting( 'username', '', $global_multi_id );
			$password        = $provider->get_setting( 'password', '', $global_multi_id );

			$confirmation_messages_list = array();

			try {
				$api               = $provider::api( $app_id, $password, $username );
				$existing_messages = ! is_wp_error( $api ) ? $api->get_existing_messages() : array();

				if ( ! empty( $existing_messages['messages'] ) ) {
					foreach ( $existing_messages['messages'] as $message ) {
						if ( 'confirmation' === $message['messageType'] ) {
							$confirmation_messages_list[ $message['messageId'] ] = $message['messageName'];
						}
					}
				}
			} catch ( Exception $e ) {
				// TODO: handle this properly
				return array();
			}

			$first = Opt_In_Utils::array_key_first( $confirmation_messages_list );

			if ( ! isset( $submitted_data['confirmation_message_id'] ) ) {
				$selected_list = $first;
			} else {
				$selected_list = array_key_exists( $submitted_data['confirmation_message_id'], $confirmation_messages_list ) ? $submitted_data['confirmation_message_id'] : $first;
			}

			$options = array(
				'list_id_setup' => array(
					'class'    => 'sui-form-field',
					'type'     => 'wrapper',
					'elements' => array(
						'label'             => array(
							'id'    => 'list_id_label',
							'for'   => 'confirmation_message_id',
							'value' => __( 'Choose message:', 'hustle' ),
							'type'  => 'label',
						),
						'choose_email_list' => array(
							'type'     => 'select',
							'name'     => 'confirmation_message_id',
							'id'       => 'confirmation_message_id',
							'default'  => '',
							'options'  => $confirmation_messages_list,
							'value'    => $selected_list,
							'selected' => $selected_list,
							'class'    => 'sui-select sui-styled',
						),
					),
				),
			);

			return $options;
		}

		/**
		 * Check if step is completed
		 *
		 * @since 3.0.5
		 * @return bool
		 */
		public function second_step_is_completed() {
			$done = $this->first_step_is_completed() &&
			empty( $this->addon_form_settings['auto_optin'] ) || isset( $this->addon_form_settings['confirmation_message_id'] );

			return $done;
		}

	}

endif;
