#' @importFrom cranlike add_PACKAGES
#' @importFrom s3fs s3_dir_ls s3_file_system
#' @export
add_to_package_index <- function(
    package_name = NULL,
    endpoint = "https://s3.eu-central-003.backblazeb2.com",
    region = "eu-central-003",
    bucket = "devxy-arm64-r-binaries",
    codename = NULL, r_minor_version = NULL,
    build_for_minor = FALSE,
    debug = FALSE) {
  codename <- set_codename(codename)
  if (is.null(r_minor_version)) {
    r_minor_version <- sub("R version (\\d+\\.\\d+).*", "\\1", R.Version()$version.string)
  }

  if (!build_for_minor) {
    local_bin_dir <- sprintf("/root/__linux__/%s/latest/src/contrib/", codename)
    remote_bin_dir <- sprintf("%s/__linux__/%s/latest/src/contrib/", bucket, codename)
  } else {
    dir_out_bin <- sprintf("/root/__linux__/%s/%s/latest/src/contrib/", codename, r_minor_version)
    remote_bin_dir <- sprintf("%s/__linux__/%s/%s/latest/src/contrib/", bucket, codename, r_minor_version)
  }

  s3fs::s3_file_system(
    aws_access_key_id = Sys.getenv("AWS_ACCESS_KEY_ID"),
    aws_secret_access_key = Sys.getenv("AWS_SECRET_ACCESS_KEY"),
    endpoint = endpoint,
    region_name = region,
  )

  # get latest PACKAGES file from S3
  if (s3fs::s3_file_exists(sprintf("%s/PACKAGES", remote_bin_dir))) {
    s3fs::s3_file_download(sprintf("%s/PACKAGES", remote_bin_dir), sprintf("%s/PACKAGES", local_bin_dir))
  }
  file_names <- list.files(local_bin_dir, pattern = sprintf("%s*", package_name))

  # list all tarballs for the given package
  cranlike::add_PACKAGES(file_names, local_bin_dir)

  cli::cli_alert("{.fun create_package_index}: Uploading PACKAGES* files to S3.")
  dummy <- purrr::walk2(
    sprintf("%s/%s", local_bin_dir, c("PACKAGES.db", "PACKAGES.rds", "PACKAGES.gz")),
    sprintf("%s/%s", remote_bin_dir, c("PACKAGES.db", "PACKAGES.rds", "PACKAGES.gz")),
    \(x, y) s3fs::s3_file_upload(x, y, overwrite = TRUE)
  )

  pkgs_upload_local <- sprintf("%sPACKAGES", local_bin_dir)
  pkgs_upload_remote <- sprintf("%sPACKAGES", remote_bin_dir)

  if (debug) {
    cli::cli_alert_danger("DEBUG: PACKAGES UPLOAD local dir: {pkgs_upload_local}")
    cli::cli_alert_danger("DEBUG: PACKAGES UPLOAD remote dir: {pkgs_upload_remote}")
  }

  dummy <- s3fs::s3_file_upload(pkgs_upload_local, pkgs_upload_remote, overwrite = TRUE)
  # s3fs::s3_file_upload(
  #   sprintf("%s/%s", local_bin_dir, c("PACKAGES", "PACKAGES.db", "PACKAGES.rds", "PACKAGES.gz")),
  #   sprintf("%s", remote_bin_dir, c("PACKAGES", "PACKAGES.db", "PACKAGES.rds", "PACKAGES.gz")),
  #   overwrite = TRUE
  # )
  return(invisible(TRUE))
}