#' Highlight Selected Station on Map (MapLibre version)
#'
#' @param proxy MapLibre proxy object
#' @param lng Longitude of the station
#' @param lat Latitude of the station
#' @param label_html HTML content for the label/tooltip
#' @param move_map Whether to fly to the station location
#'
highlight_selected_station <- function(proxy, lng, lat, label_html, move_map = TRUE) {
    if (move_map) {
        proxy %>% fly_to(center = c(lng, lat), zoom = 9)
    }

    # Create a single-point sf for the highlight marker
    highlight_data <- data.frame(
        id = "selected-highlight",
        popup_content = label_html,
        lng = lng,
        lat = lat
    )
    highlight_sf <- sf::st_as_sf(highlight_data, coords = c("lng", "lat"), crs = 4326)

    proxy %>%
        clear_layer("selected-highlight") %>%
        add_circle_layer(
            id = "selected-highlight",
            source = highlight_sf,
            circle_color = "red",
            circle_radius = 12,
            circle_stroke_color = "red",
            circle_stroke_width = 3,
            circle_opacity = 0.4,
            tooltip = "popup_content"
        )
}