#!/bin/execlineb -Ws0
# SPDX-License-Identifier: EUPL-1.2+
# SPDX-FileCopyrightText: 2022-2023, 2025 Alyssa Ross <hi@alyssa.is>
# SPDX-FileCopyrightText: 2025 Demi Marie Obenour <demiobenour@gmail.com>

if {
  case "${#}" {
    1 { true }
    2 {
      multisubstitute {
        define sourcedir ${2}
        define fsdir /run/vm/by-id/${1}/fs/user
      }
      if { mkdir -p ${fsdir} }
      foreground { redirfd -w 2 /dev/null umount ${fsdir} }
      mount --bind -- ${sourcedir} ${fsdir}
    }
  }
  foreground { fdmove -c 1 2 echo "Bad number of arguments ${#} (expected 1 or 3)" }
  exit 100
}

foreground { s6-rc -bu change vm-env }

foreground {
  redirfd -w 2 /dev/null
  cd /run/vm/by-id/${1}/config/providers/net
  elglob -0 providers *
  forx -pE provider { $providers }
  backtick -E provider_id {
    backtick -E id_path { readlink /run/vm/by-name/${provider} }
    basename -- $id_path
  }
  vm-start $provider_id
}

foreground {
  redirfd -w 2 /dev/null
  s6-svwait -U /run/service/vmm/instance/${1}
}
if { ch-remote --api-socket /run/vm/by-id/${1}/vmm boot }
case "${#}" {
  2 { s6-svwait -D /run/service/vmm/instance/${1} }
}