event-date

$original_date = get_post_meta( $args['postId'], 'event_date', true );
$original_end_date = get_post_meta( $args['postId'], 'event_end_date', true );

// Convert date format
$new_date = gmdate( 'd M Y', strtotime( $original_date ) );

if ( $original_end_date !== '' ) {
    $new_end_date = gmdate( 'd M Y', strtotime( $original_end_date ) );
}

$recurrence_type = get_post_meta( $args['postId'], 'event_recurrence', true );
$recurrence_end_date = get_post_meta( $args['postId'], 'event_recurrence_end', true );
$custom_dates = get_post_meta( $args['postId'], 'event_custom_dates', true );


$today_timestamp = strtotime( date( 'Y-m-d' ) );

$all_event_dates = [];
$all_event_end_dates = [];

if ( $recurrence_type === 'custom' && ! empty( $custom_dates ) && is_array( $custom_dates ) ) {
    usort(
        $custom_dates,
        function ( $a, $b ) {
            return strtotime( $a['start'] ) - strtotime( $b['start'] );
        }
    );

    if ( ! empty( $custom_dates[0]['start'] ) ) {
        $new_date     = gmdate( 'd M Y', strtotime( $custom_dates[0]['start'] ) );
        $new_end_date = ! empty( $custom_dates[0]['end'] ) ? gmdate( 'd M Y', strtotime( $custom_dates[0]['end'] ) ) : '';
    }
}

if ( $recurrence_type ) {

    if ( $recurrence_type === 'single' ) {
        $recurrence_end_timestamp = null;
    } else {
        $recurrence_end_timestamp = ! empty( $recurrence_end_date ) ? strtotime( $recurrence_end_date ) : null;
    }

    $next_start_date = strtotime( $original_date );
    $next_end_date = strtotime( $original_end_date );


    switch ( $recurrence_type ) {
        case 'weekly':
            $counter = 0;
            $max_events = 10;

            while (
                ( $recurrence_end_timestamp && $next_start_date <= $recurrence_end_timestamp ) ||
                ( ! $recurrence_end_timestamp && $counter < $max_events )
            ) {
                if ( $next_start_date >= $today_timestamp ) {
                    $all_event_dates[] = gmdate( 'd M Y', $next_start_date );

                    if ( $next_end_date ) {
                        $all_event_end_dates[] = gmdate( 'd M Y', $next_end_date );
                    } else {
                        $all_event_end_dates[] = '';
                    }
                    $counter++;
                }

                $next_start_date = strtotime( '+1 week', $next_start_date );
                if ( $next_end_date ) {
                    $next_end_date = strtotime( '+1 week', $next_end_date );
                }
            }
            break;


        case 'monthly':
            $counter = 0;
            $max_events = 10;

            while (
                ( $recurrence_end_timestamp && $next_start_date <= $recurrence_end_timestamp ) ||
                ( ! $recurrence_end_timestamp && $counter < $max_events )
            ) {
                if ( $next_start_date >= $today_timestamp ) {
                    $all_event_dates[] = gmdate( 'd M Y', $next_start_date );

                    if ( $next_end_date ) {
                        $all_event_end_dates[] = gmdate( 'd M Y', $next_end_date );
                    } else {
                        $all_event_end_dates[] = '';
                    }
                    $counter++;
                }

                $next_start_date = strtotime( '+1 month', $next_start_date );
                if ( $next_end_date ) {
                    $next_end_date = strtotime( '+1 month', $next_end_date );
                }
            }
            break;


        case 'custom':
            if ( ! empty( $custom_dates ) && is_array( $custom_dates ) ) {
                foreach ( $custom_dates as $index => $date_range ) {
                    $start = ! empty( $date_range['start'] ) ? $date_range['start'] : '';
                    $end   = ! empty( $date_range['end'] ) ? $date_range['end'] : '';

                    if ( ! empty( $start ) && strtotime( $start ) >= $today_timestamp ) {
                        $all_event_dates[] = gmdate( 'd M Y', strtotime( $start ) );
                    }

                    if ( ! empty( $end ) && strtotime( $end ) >= $today_timestamp ) {
                        $all_event_end_dates[] = gmdate( 'd M Y', strtotime( $end ) );
                    }
                }
            }
            break;
    }
}


?>

<p class="event-date">
    <?php
    if ( ! empty( $new_end_date ) && strtotime( $new_end_date ) < $today_timestamp ) {
        foreach ( $all_event_dates as $key => $event_date ) {
            if ( strtotime( $event_date ) >= $today_timestamp ) {
                echo esc_html( $event_date ) . ( ! empty( $all_event_end_dates[ $key ] ) ? ' - ' . esc_html( $all_event_end_dates[ $key ] ) : '' );
                break;
            }
        }
    } elseif ( ! empty( $original_date ) ) {
            echo esc_html( $new_date ) . ( isset( $new_end_date ) && ! empty( $original_end_date ) ? ' - ' . esc_html( $new_end_date ) : '' );
    }
    ?>
</p>

<?php
if ( is_singular( 'event' ) && ! empty( $all_event_dates ) ) {
    foreach ( $all_event_dates as $key => $event_date ) {
        if ( strtotime( $event_date ) >= $today_timestamp ) {
            $next_event = esc_html( $event_date ) . ( ! empty( $all_event_end_dates[ $key ] ) ? ' - ' . esc_html( $all_event_end_dates[ $key ] ) : '' );

            if ( $next_event !== $new_date . ( isset( $new_end_date ) ? ' - ' . $new_end_date : '' ) ) {
                echo '<p class="next-event-date"><strong>' . __( 'Next Event Date:', 'pulsar' ) . '</strong> <span>' . $next_event . '</span></p>';
                break;
            }
        }
    }
}
?>

<?php

if ( ! empty( $formatted_custom_date ) ) :
    $found_custom_date = false;
    foreach ( $custom_dates as $index => $date_range ) {
        $start = ! empty( $date_range['start'] ) ? $date_range['start'] : '';
        $end   = ! empty( $date_range['end'] ) ? $date_range['end'] : '';

        if ( ! empty( $start ) && strtotime( $start ) >= $today_timestamp ) {
            $next_custom_start = gmdate( 'd M Y', strtotime( $start ) );
            $next_custom_end = ! empty( $end ) ? gmdate( 'd M Y', strtotime( $end ) ) : '';

            $formatted_custom_date = $next_custom_start;
            if ( ! empty( $next_custom_end ) ) {
                $formatted_custom_date .= ' - ' . $next_custom_end;
            }

            if ( $formatted_custom_date !== $new_date . ' - ' . $new_end_date ) {
                echo '<p class="custom-dates">
                        <strong>' . __( 'Next Event Date:', 'pulsar' ) . '</strong>
                        <span>' . esc_html( $formatted_custom_date ) . '</span>
                      </p>';
                $found_custom_date = true;
                break;
            }
        }
    }
endif;
?>