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#' Download TIGER Shapes for Area Water
#'
#' @templateVar state TRUE
#' @templateVar county TRUE
#' @templateVar year TRUE
#' @template template
#'
#' @return sf data.frame
#' @export
#'
#' @concept water
#'
#' @examples
#' # Wrapped in try due to false positive 304 errors
#' \donttest{try(tt_area_water("DE"))} # downloads slow on CRAN
tt_area_water <- function(state, county, year = 2022) {
years_okay(year, 2010:2022)
if (missing(state)) {
cli::cli_abort("{.arg state} is required for {.fn tt_area_water}.")
}
if (length(state) > 1) {
cli::cli_abort("{.arg state} may have only one entry for {.fn tt_area_water}.")
}
state <- state_lookup(state)
if (!missing(county)) {
county <- county_lookup(state, county)
} else {
county <- county_lookup_all(state)
}
shp <- lapply(state, function(st) {
do.call(rbind,
lapply(county, function(cty) {
zip_url <- glue::glue("{base_url(year)}/AREAWATER/tl_{year}_{state}{cty}_areawater.zip")
target <- glue::glue("tl_{year}_{state}{cty}_areawater.shp")
tt_download_read(url = zip_url, target_file = target)
})
)
})
shp <- do.call(rbind, shp)
adj_class(shp)
}
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