<?php

/**
 * Event create/update form backend view layer.
 *
 * Manage creation of boxes (containers) for our control elements
 * and instantiating, as well as updating them.
 *
 * @author       Time.ly Network, Inc.
 * @since        2.0
 * @package      Ai1EC
 * @subpackage   Ai1EC.View
 */
class Ai1ec_View_Add_New_Event extends Ai1ec_Base {

    /**
     * Create hook to display event meta box when creating or editing an event.
     *
     * @wp_hook add_meta_boxes
     *
     * @return void
     */
    public function event_meta_box_container() {
        add_meta_box(
            AI1EC_POST_TYPE,
            Ai1ec_I18n::__( 'Event Details' ),
            array( $this, 'meta_box_view' ),
            AI1EC_POST_TYPE,
            'normal',
            'high'
        );
        
        add_meta_box(
            AI1EC_POST_TYPE . '_features',
            Ai1ec_I18n::__( 'Empower your calendar, build your community' ),
            array( $this, 'features_info' ),
            AI1EC_POST_TYPE,
            'side',
            'low'
        );
        
    }

    /**
     * Add Event Details meta box to the Add/Edit Event screen in the dashboard.
     *
     * @return void
     */
    public function features_info( $post ) {
        $message = __(
                '<ul class="ai1ec-features-list"><li><a href="https://time.ly/hub" target="_blank">Pull events from other calendars</a></li><li><a href="https://time.ly/hub" target="_blank">Pull events from Facebook</a></li><li><a href="https://time.ly/hub" target="_blank">Add a Newsletter</a></li><li><a href="https://time.ly/hub" target="_blank">Get public event submissions</a></li><li><a href="https://time.ly/hub" target="_blank">Charge people to post events</a></li><li><a href="https://time.ly/hub" target="_blank">Add social sharing</a></li><li><a href="https://time.ly/hub" target="_blank">And more</a></li></ul>',
                AI1EC_PLUGIN_NAME
            );
            
        echo $message;
    }


    /**
     * Add Event Details meta box to the Add/Edit Event screen in the dashboard.
     *
     * @return void
     */
    public function meta_box_view( $post ) {

        $theme_loader         = $this->_registry->get( 'theme.loader' );
        $empty_event          = $this->_registry->get( 'model.event' );

        // ==================
        // = Default values =
        // ==================
        // ATTENTION - When adding new fields to the event remember that you must
        // also set up the duplicate-controller.
        // TODO: Fix this duplication.
        $all_day_event         = '';
        $instant_event         = '';
        $start                 = $this->_registry->get( 'date.time' );
        $end                   = $this->_registry->get( 'date.time', '+1 hour' );
        $timezone_name         = null;
        $timezones_list        = $this->_registry->get( 'date.timezone' )->get_timezones( true );
        $show_map              = false;
        $google_map            = '';
        $venue                 = '';
        $country               = '';
        $address               = '';
        $city                  = '';
        $province              = '';
        $postal_code           = '';
        $contact_name          = '';
        $contact_phone         = '';
        $contact_email         = '';
        $contact_url           = '';
        $cost                  = '';
        $is_free               = '';
        $cost_type             = 'free';
        $rrule                 = '';
        $rrule_text            = '';
        $repeating_event       = false;
        $exrule                = '';
        $exrule_text           = '';
        $exclude_event         = false;
        $exdate                = '';
        $show_coordinates      = false;
        $longitude             = '';
        $latitude              = '';
        $coordinates           = '';
        $ticket_url            = '';

        $instance_id = false;
        if ( isset( $_REQUEST['instance'] ) ) {
            $instance_id = absint( $_REQUEST['instance'] );
        }
        if ( $instance_id ) {
            add_filter(
                'print_scripts_array',
                array( $this, 'disable_autosave' )
            );
        }

        try {
            // on some php version, nested try catch blocks fail and the exception would never be caught.
            // this is why we use this approach.
            $excpt = null;
            $event = null;
            try {
                $event = $this->_registry->get(
                    'model.event',
                    get_the_ID(),
                    $instance_id
                );
            } catch ( Ai1ec_Event_Not_Found_Exception $excpt ) {
                $ai1ec_localization_helper = $this->_registry
                    ->get( 'p28n.wpml' );
                $translatable_id = $ai1ec_localization_helper
                    ->get_translatable_id();
                if ( false !== $translatable_id ) {
                    $event = $this->_registry->get(
                        'model.event',
                        $translatable_id,
                        $instance_id
                    );
                }
            }
            if ( null !== $excpt ) {
                throw $excpt;
            }

            // Existing event was found. Initialize form values with values from
            // event object.
            $all_day_event    = $event->is_allday()  ? 'checked' : '';
            $instant_event    = $event->is_instant() ? 'checked' : '';

            $start            = $event->get( 'start' );
            $end              = $event->get( 'end' );
            $timezone_name    = $event->get( 'timezone_name' );

            $multi_day        = $event->is_multiday();

            $show_map         = $event->get( 'show_map' );
            $google_map       = $show_map ? 'checked="checked"' : '';

            $show_coordinates = $event->get( 'show_coordinates' );
            $coordinates      = $show_coordinates ? 'checked="checked"' : '';
            $longitude        = (float)$event->get( 'longitude', 0 );
            $latitude         = (float)$event->get( 'latitude',  0 );
            // There is a known bug in Wordpress (https://core.trac.wordpress.org/ticket/15158) that saves 0 to the DB instead of null.
            // We handle a special case here to avoid having the fields with a value of 0 when the user never inputted any coordinates
            if ( ! $show_coordinates ) {
                $longitude = '';
                $latitude  = '';
            }

            $venue            = $event->get( 'venue' );
            $country          = $event->get( 'country' );
            $address          = $event->get( 'address' );
            $city             = $event->get( 'city' );
            $province         = $event->get( 'province' );
            $postal_code      = $event->get( 'postal_code' );
            $contact_name     = $event->get( 'contact_name' );
            $contact_phone    = $event->get( 'contact_phone' );
            $contact_email    = $event->get( 'contact_email' );
            $contact_url      = $event->get( 'contact_url' );
            $cost             = $event->get( 'cost' );
            $ticket_url       = $event->get( 'ticket_url' );
            $rrule            = $event->get( 'recurrence_rules' );
            $exrule           = $event->get( 'exception_rules' );
            $exdate           = $event->get( 'exception_dates' );
            $repeating_event  = ! empty( $rrule );
            $exclude_event    = ! empty( $exrule );

            $is_free = '';
            $free = $event->is_free();
            if ( ! empty( $free ) ) {
                $is_free = 'checked="checked" ';
                $cost    = '';
            }

            if ( $repeating_event ) {
                $rrule_text = ucfirst(
                    $this->_registry->get( 'recurrence.rule' )
                    ->rrule_to_text( $rrule )
                );
            }

            if ( $exclude_event ) {
                $exrule_text = ucfirst(
                    $this->_registry->get( 'recurrence.rule' )
                    ->rrule_to_text( $exrule )
                );
            }
        } catch ( Ai1ec_Event_Not_Found_Exception $excpt ) {
            // Event does not exist.
            // Leave form fields undefined (= zero-length strings)
            $event = null;
        }

        // Time zone; display if set.
        $timezone        = '';
        $timezone_string = null;
        $date_timezone   = $this->_registry->get( 'date.timezone' );

        if (
            ! empty( $timezone_name ) &&
            $local_name = $date_timezone->get_name( $timezone_name )
        ) {
            $timezone_string = $local_name;
        }
        if ( null === $timezone_string ) {
            $timezone_string = $date_timezone->get_default_timezone();
        }

        if ( $timezone_string ) {
            $timezone = $this->_registry->get( 'date.system' )
                ->get_gmt_offset_expr( $timezone_string );
        }

        if ( empty( $timezone_name ) ) {
            /**
             * Actual Olsen timezone name is used when value is to be directly
             * exposed to user in some mean. It's possible to use named const.
             * `'sys.default'` only when passing value to date.time library.
             */
            $timezone_name = $date_timezone->get_default_timezone();
        }

        // This will store each of the accordion tabs' markup, and passed as an
        // argument to the final view.
        $boxes = array();
        $parent_event_id = null;
        if ( $event ) {
            $parent_event_id = $this->_registry->get( 'model.event.parent' )
                ->event_parent( $event->get( 'post_id' ) );
        }
        // ===============================
        // = Display event time and date =
        // ===============================
        $args = array(
            'all_day_event'      => $all_day_event,
            'instant_event'      => $instant_event,
            'start'              => $start,
            'end'                => $end,
            'repeating_event'    => $repeating_event,
            'rrule'              => $rrule,
            'rrule_text'         => $rrule_text,
            'exclude_event'      => $exclude_event,
            'exrule'             => $exrule,
            'exrule_text'        => $exrule_text,
            'timezone'           => $timezone,
            'timezone_string'    => $timezone_string,
            'timezone_name'      => $timezone_name,
            'exdate'             => $exdate,
            'parent_event_id'    => $parent_event_id,
            'instance_id'        => $instance_id,
            'timezones_list'     => $timezones_list,
        );

        $boxes[] = $theme_loader
            ->get_file( 'box_time_and_date.php', $args, true )
            ->get_content();

        // =================================================
        // = Display event location details and Google map =
        // =================================================
        $args = array(
            'select_venue'     => apply_filters( 'ai1ec_admin_pre_venue_html', '' ),
            'save_venue'       => apply_filters( 'ai1ec_admin_post_venue_html', '' ),
            'venue'            => $venue,
            'country'          => $country,
            'address'          => $address,
            'city'             => $city,
            'province'         => $province,
            'postal_code'      => $postal_code,
            'google_map'       => $google_map,
            'show_map'         => $show_map,
            'show_coordinates' => $show_coordinates,
            'longitude'        => $longitude,
            'latitude'         => $latitude,
            'coordinates'      => $coordinates,
        );
        $boxes[] = $theme_loader
            ->get_file( 'box_event_location.php', $args, true )
            ->get_content();

        // ===================================
        // = Display event ticketing options =
        // ===================================
        if ( $event ) {
            $cost_type = get_post_meta(
                $event->get( 'post_id' ),
                '_ai1ec_cost_type',
                true
            );
            if ( ! $cost_type ) {
                if ( $ticket_url || $cost ) {
                    $cost_type = 'external';
                } else {
                    $cost_type = 'free';
                }
            }
        }

        $api                   = $this->_registry->get( 'model.api.api-ticketing' );
        $api_reg               = $this->_registry->get( 'model.api.api-registration' );
        $ticketing             = $api_reg->is_signed() && $api_reg->is_ticket_available() && $api_reg->is_ticket_enabled();
        $message               = $api->get_sign_message();
        $ticket_error          = null;
        $ticket_event_imported = false;
        $tickets               = array( null );
        $tax_options           = null;

        if ( ! $api_reg->is_ticket_available() ) {
            $message = __(
                'Ticketing is currently not available for this website. Please, try again later.',
                AI1EC_PLUGIN_NAME
            );
        } else if ( ! $api_reg->is_ticket_enabled() ) {
            $message = __(
                'Timely Ticketing saves time & money. Create ticketing/registration right here and now. You do not pay any ticketing fees (other than regular PayPal transaction costs). Create as many ticketing/registration as you\'d like.<br /><br />Ticketing feature is not enabled for this website. Please sign up for Ticketing plan <a href="https://time.ly/tickets-existing-users/" target="_blank">here</a>.',
                AI1EC_PLUGIN_NAME
            );
        }

        if ( $event ) {
            $is_ticket_event       = ! is_null( $api->get_api_event_id( $event->get( 'post_id' ) ) );
            $ticket_event_account  = $api->get_api_event_account( $event->get( 'post_id' ) );
            $ticket_event_imported = $api->is_ticket_event_imported( $event->get( 'post_id' ) );
            if ( $ticketing || $ticket_event_imported ) {
                if ( 'tickets' === $cost_type ) {
                    if ( $ticket_event_imported ) {
                        $response = json_decode( $api->get_ticket_types( $event->get( 'post_id' ) ) );
                        if ( isset( $response->data )  && 0 < count( $response->data ) ) {
                            $tickets = array_merge( $tickets, $response->data );
                        }
                        if ( isset( $response->error ) ) {
                            $ticket_error = $response->error;
                        }
                    } else {
                        $response = $api->get_event( $event->get( 'post_id' ) );
                        if ( isset( $response->data ) && 0 < count( $response->data ) ) {
                            $tickets     = array_merge( $tickets, $response->data->ticket_types );
                            $tax_options = $response->data->tax_options;
                        }
                        if ( isset( $response->error ) ) {
                            $ticket_error = $response->error;
                        }
                    }
                }
                $uid = $event->get_uid();
            } else {
                $uid = $empty_event->get_uid();
            }
            $uid = $event->get_uid();
        } else {
            $is_ticket_event      = false;
            $ticket_event_account = '';
            $uid                  = $empty_event->get_uid();
        }

        if ( $ticketing ) {
            if ( $event ) {
                $ticket_currency = $api->get_api_event_currency( $event->get( 'post_id' ) );
                if ( $api->is_ticket_event_from_another_account( $event->get( 'post_id' ) ) )  {
                    $ticket_error  = sprintf(
                        __( 'This Event was created using a different account %s. Changes are not allowed.', AI1EC_PLUGIN_NAME ),
                        $api->get_api_event_account( $event->get( 'post_id' ) )
                    );
                }
            }
            if ( ! isset( $ticket_currency ) || is_null( $ticket_currency ) ) {
                //for new ticket events get the currency from the payments settings
                $payments_settings = $api->get_payment_settings();
                if ( null !== $payments_settings ) {
                    $ticket_currency = $payments_settings['currency'];
                } else {
                    $ticket_currency = 'USD';
                }
            }
        } else {
            $ticket_currency = '';
        }

        $args = array(
            'cost'                  => $cost,
            'cost_type'             => $cost_type,
            'ticket_url'            => $ticket_url,
            'event'                 => $empty_event,
            'uid'                   => $uid,
            'tickets'               => $tickets,
            'ticketing'             => $ticketing,
            'valid_payout_details'  => $api->has_payment_settings(),
            'tickets_message'       => $message,
            'start'                 => $start,
            'end'                   => $end,
            'tickets_loading_error' => $ticket_error,
            'ticket_event_imported' => $ticket_event_imported,
            'is_free'               => $is_free,
            'ticket_currency'       => $ticket_currency,
            'is_ticket_event'       => $is_ticket_event,
            'ticket_event_account'  => $ticket_event_account,
            'tax_options'            => $tax_options
        );

        $boxes[] = $theme_loader
            ->get_file( 'box_event_cost.php', $args, true )
            ->get_content();



        // =========================================
        // = Display organizer contact information =
        // =========================================
        $submitter_html = null;
        if ( $event ) {
            $submitter_info = $event->get_submitter_info();
            if (  null !== $submitter_info ) {
                if ( 1 === $submitter_info['is_organizer'] ) {
                    $submitter_html = Ai1ec_I18n::__( '<span class="ai1ec-info-text">The event was submitted by this Organizer.</span>' );
                } else if ( isset( $submitter_info['email'] ) ||
                    isset( $submitter_info['name'] ) ) {
                    $submitted_by   = '';
                    if ( false === ai1ec_is_blank ( $submitter_info['name'] ) ) {
                        $submitted_by = sprintf( '<strong>%s</strong>', htmlspecialchars( $submitter_info['name'] ) );
                    }
                    if ( false === ai1ec_is_blank( $submitter_info['email'] ) ) {
                        if ( '' !== $submitted_by ) {
                            $submitted_by .= Ai1ec_I18n::__( ', email: ' );
                        }
                        $submitted_by .= sprintf( '<a href="mailto:%s" target="_top">%s</a>', $submitter_info['email'], $submitter_info['email'] ) ;
                    }
                    $submitter_html = sprintf( Ai1ec_I18n::__( '<span class="ai1ec-info-text">The event was submitted by %s.</span>' ),
                            $submitted_by
                        );
                }
            }
        }
        $args = array(
            'contact_name'    => $contact_name,
            'contact_phone'   => $contact_phone,
            'contact_email'   => $contact_email,
            'contact_url'     => $contact_url,
            'event'           => $empty_event,
            'submitter_html'  => $submitter_html
        );
        $boxes[] = $theme_loader
            ->get_file( 'box_event_contact.php', $args, true )
            ->get_content();

        // ==========================
        // = Parent/Child relations =
        // ==========================
        if ( $event ) {
            $parent   = $this->_registry->get( 'model.event.parent' )
                ->get_parent_event( $event->get( 'post_id' ) );
            if ( $parent ) {
                try {
                    $parent = $this->_registry->get( 'model.event', $parent );
                } catch ( Ai1ec_Event_Not_Found_Exception $exception ) { // ignore
                    $parent = null;
                }
            }
            if ( $parent ) {
                $children = $this->_registry->get( 'model.event.parent' )
                    ->get_child_event_objects( $event->get( 'post_id' ) );
                $args = compact( 'parent', 'children' );
                $args['registry'] = $this->_registry;

                $boxes[] = $theme_loader->get_file(
                    'box_event_children.php',
                    $args,
                    true
                )->get_content();
            }

        }

        $boxes = apply_filters( 'ai1ec_add_new_event_boxes', $boxes, $event );
        // Display the final view of the meta box.
        $args = array(
            'boxes'          => $boxes,
        );

        echo $theme_loader
            ->get_file( 'add_new_event_meta_box.php', $args, true )
            ->get_content();
    }

    /**
     * Add Banner Image meta box to the Add/Edit Event.
     *
     * @return void
     */
    public function banner_meta_box_view( $post ) {
        $banner_image_meta = get_post_meta( $post->ID, 'ai1ec_banner_image' );
        $theme_loader      = $this->_registry->get( 'theme.loader' );
        $args = array(
            'src'         => $banner_image_meta && $banner_image_meta[0]
                ? $banner_image_meta[0] : false,
            'set_text'    => Ai1ec_I18n::__( 'Set banner image' ),
            'remove_text' => Ai1ec_I18n::__( 'Remove banner image' ),

        );
        echo $theme_loader
            ->get_file( 'banner-image.twig', $args, true )
            ->get_content();
    }

    /**
     * disable_autosave method
     *
     * Callback to disable autosave script
     *
     * @param array $input List of scripts registered
     *
     * @return array Modified scripts list
     */
    public function disable_autosave( array $input ) {
        wp_deregister_script( 'autosave' );
        $autosave_key = array_search( 'autosave', $input );
        if ( false === $autosave_key || ! is_scalar( $autosave_key ) ) {
            unset( $input[$autosave_key] );
        }
        return $input;
    }

    /**
     * Renders Bootstrap inline alert.
     *
     * @param WP_Post $post Post object.
     *
     * @return void Method does not return.
     */
    public function event_inline_alert( $post ) {
        if ( $this->_is_post_event( $post ) ) {
            $theme_loader = $this->_registry->get( 'theme.loader' );
            echo $theme_loader->get_file( 'box_inline_warning.php', null, true )
                ->get_content();
        }
    }

    private function _is_post_event( $post ) {
        return isset( $post->post_type ) && AI1EC_POST_TYPE === $post->post_type;
    }

}
