render_sass <- function(file, output = NULL, outdir = "dist") {
  if (is.null(output)) {
    output <- fs::path_file(file)
    fs::path_ext(output) <- "rstheme"
  }
  output <- fs::path(outdir, output)
  cliapp::cli_alert_success("{path {fs::path_rel(file, getwd())}}")
  sass::sass(sass::sass_file(paste(file)), output = output)
}


get_theme_name <- function(file) {
  x <- readLines(file, warn = FALSE)
  x <- grep("rs-theme-name", x, value = TRUE)
  if (!length(x)) return("")
  x <- sub("^\\s*/\\*\\s*rs-theme-name:\\s", "", x)
  x <- sub("\\s*\\*/\\s*$", "", x)
  x
}

cp_to_rstudio <- function(file) {
  cliapp::cli_alert("{arg \"{get_theme_name(file)}\"}")
  fs::file_copy(
    file, 
    fs::path_home_r(".R", "rstudio", "themes", fs::path_file(file)),
    overwrite = TRUE
  )
}