data "local_file" "ssh_public_key" {
  filename = pathexpand(var.ssh_public_key)
}

data "hcloud_ssh_keys" "all_keys" {}

locals {
  existing_key = try([
    for key in data.hcloud_ssh_keys.all_keys.ssh_keys :
    key if key.name == "${var.cluster_name}-ssh-key"
  ][0], null)
}

resource "hcloud_ssh_key" "cluster" {
  count      = local.existing_key == null ? 1 : 0
  name       = "${var.cluster_name}-ssh-key"
  public_key = data.local_file.ssh_public_key.content
}

data "hcloud_ssh_key" "cluster" {
  fingerprint = local.existing_key != null ? local.existing_key.fingerprint : hcloud_ssh_key.cluster[0].fingerprint
}