variable "proxmox_host" { type = string }
variable "proxmox_user" { type = string }
variable "cloud_image_url" { type = string }
variable "image_path" { type = string }
variable "template_id" {
  type    = number
  default = 8000
}
variable "template_name" { type = string }

# SSH connection to Proxmox
resource "null_resource" "create_template_remote" {
  connection {
    type        = "ssh"
    user        = var.proxmox_user
    host        = var.proxmox_host
    private_key = file("~/.ssh/id_ed25519")
  }

  # Commands executed *on Proxmox host*
  provisioner "remote-exec" {
    inline = [
      "set -e",
      # download the cloud image if missing
      "if [ ! -f ${var.image_path} ]; then wget -O ${var.image_path} ${var.cloud_image_url}; fi",
      # create template only if not existing
      "if ! qm status ${var.template_id} >/dev/null 2>&1; then",
      "  echo 'Creating cloud-init template...';",
      "  qm create ${var.template_id} --name ${var.template_name} --memory 8192 --cores 8 --net0 virtio,bridge=vmbr0;",
      "  qm importdisk ${var.template_id} ${var.image_path} local-lvm;",
      "  qm set ${var.template_id} --scsihw virtio-scsi-pci --scsi0 local-lvm:vm-${var.template_id}-disk-0;",
      "  qm set ${var.template_id} --ide2 local-lvm:cloudinit;",
      "  qm set ${var.template_id} --boot c --bootdisk scsi0;",
      "  qm set ${var.template_id} --serial0 socket --vga serial0;",
      "  qm template ${var.template_id};",
      "else",
      "  echo 'Template ${var.template_id} already exists — skipping.';",
      "fi"
    ]
  }
}