#!/usr/bin/env nu
# install-rollback.nu — compensation for install-crate.
# Removes the installed binary if it was placed during a now-failed pipeline.

def main []: nothing -> nothing {
  let run_id = ($env | get --ignore-errors PIPELINE_RUN_ID | default "unknown")
  print $"Compensating install for pipeline run [$run_id]"

  # The binary name must be deterministic — read from env or derive from cargo metadata
  let crate_name = ($env | get --ignore-errors STRATUM_CRATE_NAME | default "")
  if ($crate_name | is-empty) {
    print "STRATUM_CRATE_NAME not set — skipping install rollback"
    return
  }

  let target = ($nu.home-dir | path join ".local" "bin" $crate_name)
  if ($target | path exists) {
    let rm_result = (do { ^rm $target } | complete)
    if ($rm_result.exit_code != 0) {
      print $"WARNING: failed to remove ($target): ($rm_result.stderr)"
    } else {
      print $"Removed ($target)"
    }
  } else {
    print $"($target) not present — nothing to remove"
  }
}