<?php
/**
 * Handles data retrieval for the Event Summary page.
 */

if ( ! defined( 'ABSPATH' ) ) {
    exit; // Exit if accessed directly
}

class HVAC_Event_Summary_Data {

    /**
     * The ID of the event post.
     *
     * @var int|null
     */
    private $event_id = null;

    /**
     * The event post object.
     *
     * @var WP_Post|null
     */
    private $event_post = null;

    /**
     * Constructor.
     *
     * @param int $event_id The ID of the event to retrieve data for.
     */
    public function __construct( $event_id ) {
        $this->event_id = absint( $event_id );
        if ( $this->event_id > 0 ) {
            $this->event_post = get_post( $this->event_id );
            // Ensure it's an event post type (adjust post type if needed)
            if ( ! $this->event_post || get_post_type( $this->event_post ) !== Tribe__Events__Main::POSTTYPE ) {
                $this->event_id   = null;
                $this->event_post = null;
            }
        }
    }

    /**
     * Check if the event is valid.
     *
     * @return bool True if the event ID is valid and the post exists, false otherwise.
     */
    public function is_valid_event() {
        return ! is_null( $this->event_post );
    }

    /**
     * Get basic event details.
     *
     * @return array|null An array of event details or null if the event is invalid.
     */
    public function get_event_details() {
        if ( ! $this->is_valid_event() ) {
            return null;
        }

        $details = [
            'id'          => $this->event_id,
            'title'       => get_the_title( $this->event_id ),
            'description' => apply_filters( 'the_content', get_post_field( 'post_content', $this->event_id ) ),
            'excerpt'     => get_the_excerpt( $this->event_id ),
            'permalink'   => get_permalink( $this->event_id ),
            'start_date'  => null,
            'end_date'    => null,
            'cost'        => null,
            'is_all_day'  => false,
            'is_recurring'=> false,
            'timezone'    => null,
        ];

        // Use TEC functions if available
        if ( function_exists( 'tribe_get_start_date' ) ) {
            $details['start_date'] = tribe_get_start_date( $this->event_id, true, 'Y-m-d H:i:s' ); // Get raw date/time
        }
        if ( function_exists( 'tribe_get_end_date' ) ) {
            $details['end_date'] = tribe_get_end_date( $this->event_id, true, 'Y-m-d H:i:s' ); // Get raw date/time
        }
        if ( function_exists( 'tribe_get_cost' ) ) {
            $details['cost'] = tribe_get_cost( $this->event_id, true );
        }
        if ( function_exists( 'tribe_event_is_all_day' ) ) {
            $details['is_all_day'] = tribe_event_is_all_day( $this->event_id );
        }
        if ( function_exists( 'tribe_is_recurring_event' ) ) {
            $details['is_recurring'] = tribe_is_recurring_event( $this->event_id );
        }
         if ( function_exists( 'tribe_get_timezone' ) ) {
            $details['timezone'] = tribe_get_timezone( $this->event_id );
        }

        return $details;
    }

    /**
     * Get event venue details.
     *
     * @return array|null An array of venue details or null if the event is invalid or has no venue.
     */
    public function get_event_venue_details() {
        if ( ! $this->is_valid_event() ) {
            return null;
        }

        $venue_details = null;
        $venue_id = null;

        if ( function_exists( 'tribe_get_venue_id' ) ) {
            $venue_id = tribe_get_venue_id( $this->event_id );
        }

        if ( $venue_id && function_exists( 'tribe_get_venue_details' ) ) {
             // tribe_get_venue_details is deprecated, use individual functions
             $venue_details = [
                'id'            => $venue_id,
                'name'          => function_exists('tribe_get_venue') ? tribe_get_venue( $venue_id ) : get_the_title( $venue_id ),
                'address'       => function_exists('tribe_get_full_address') ? tribe_get_full_address( $venue_id ) : null,
                'street'        => function_exists('tribe_get_address') ? tribe_get_address( $venue_id ) : null,
                'city'          => function_exists('tribe_get_city') ? tribe_get_city( $venue_id ) : null,
                'stateprovince' => function_exists('tribe_get_stateprovince') ? tribe_get_stateprovince( $venue_id ) : null, // Use stateprovince for consistency
                'state'         => function_exists('tribe_get_state') ? tribe_get_state( $venue_id ) : null,
                'province'      => function_exists('tribe_get_province') ? tribe_get_province( $venue_id ) : null,
                'zip'           => function_exists('tribe_get_zip') ? tribe_get_zip( $venue_id ) : null,
                'country'       => function_exists('tribe_get_country') ? tribe_get_country( $venue_id ) : null,
                'phone'         => function_exists('tribe_get_phone') ? tribe_get_phone( $venue_id ) : null,
                'website'       => function_exists('tribe_get_venue_website_link') ? tribe_get_venue_website_link( $venue_id, false ) : null, // Get URL only
                'map_link'      => function_exists('tribe_get_map_link') ? tribe_get_map_link( $venue_id ) : null,
                'directions_link' => function_exists('tribe_get_directions_link') ? tribe_get_directions_link( $venue_id ) : null,
             ];
        }

        return $venue_details;
    }

    /**
     * Get event organizer details.
     *
     * @return array|null An array of organizer details or null if the event is invalid or has no organizer.
     */
    public function get_event_organizer_details() {
        if ( ! $this->is_valid_event() ) {
            return null;
        }

        $organizer_details = null;
        $organizer_ids = [];

        if ( function_exists( 'tribe_get_organizer_ids' ) ) {
            $organizer_ids = tribe_get_organizer_ids( $this->event_id );
        }

        // Get details for the first organizer found
        if ( ! empty( $organizer_ids ) && is_array( $organizer_ids ) ) {
            $organizer_id = $organizer_ids[0];

            if ( $organizer_id > 0 ) {
                 $organizer_details = [
                    'id'        => $organizer_id,
                    'name'      => function_exists('tribe_get_organizer') ? tribe_get_organizer( $organizer_id ) : get_the_title( $organizer_id ),
                    'phone'     => function_exists('tribe_get_organizer_phone') ? tribe_get_organizer_phone( $organizer_id ) : null,
                    'website'   => function_exists('tribe_get_organizer_website_link') ? tribe_get_organizer_website_link( $organizer_id, false ) : null, // Get URL only
                    'email'     => function_exists('tribe_get_organizer_email') ? tribe_get_organizer_email( $organizer_id ) : null,
                    'permalink' => function_exists('tribe_get_event_link') ? tribe_get_event_link( $organizer_id, false, false ) : get_permalink( $organizer_id ), // Link to organizer post
                 ];
            }
        }

        return $organizer_details;
    }

    /**
     * Get transaction data associated with the event.
     * Requires Event Tickets / Event Tickets Plus.
     *
     * @return array An array of transaction data (e.g., orders, attendees). Empty array if none or invalid event.
     */
    public function get_event_transactions() {
        if ( ! $this->is_valid_event() ) {
            return [];
        }

        $transactions = [];

        // Check if Event Tickets is active and the necessary class/method exists
        if ( class_exists( 'Tribe__Tickets__Tickets_Handler' ) && method_exists( Tribe__Tickets__Tickets_Handler::instance(), 'get_attendees_by_id' ) ) {
            $attendees = Tribe__Tickets__Tickets_Handler::instance()->get_attendees_by_id( $this->event_id );

            if ( is_array( $attendees ) ) {
                foreach ( $attendees as $attendee ) {
                    // Extract relevant data - structure might vary based on ticket provider (Woo, EDD, RSVP, Tribe)
                    $order_id = isset( $attendee['order_id'] ) ? $attendee['order_id'] : null;
                    $ticket_type_id = isset( $attendee['product_id'] ) ? $attendee['product_id'] : null; // product_id often holds ticket type ID
                    $attendee_id = isset( $attendee['attendee_id'] ) ? $attendee['attendee_id'] : null; // Unique ID for the attendee record

                    // Get purchaser info (might be stored differently depending on provider)
                    $purchaser_name = isset( $attendee['holder_name'] ) ? $attendee['holder_name'] : null;
                    $purchaser_email = isset( $attendee['holder_email'] ) ? $attendee['holder_email'] : null;
                    if ( empty( $purchaser_name ) && isset( $attendee['purchaser_name'] ) ) {
                        $purchaser_name = $attendee['purchaser_name'];
                    }
                     if ( empty( $purchaser_email ) && isset( $attendee['purchaser_email'] ) ) {
                        $purchaser_email = $attendee['purchaser_email'];
                    }


                    $transactions[] = [
                        'attendee_id'     => $attendee_id,
                        'order_id'        => $order_id,
                        'ticket_type_id'  => $ticket_type_id,
                        'ticket_type_name'=> $ticket_type_id ? get_the_title( $ticket_type_id ) : 'N/A',
                        'purchaser_name'  => $purchaser_name,
                        'purchaser_email' => $purchaser_email,
                        'security_code'   => isset( $attendee['security_code'] ) ? $attendee['security_code'] : null,
                        'checked_in'      => isset( $attendee['check_in'] ) ? (bool) $attendee['check_in'] : false,
                        // Add other relevant fields if needed, e.g., price, order date
                    ];
                }
            }
        }

        return $transactions;
    }
}