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#!/bin/sh
set -eu

token='<one-time-token>'
origin='https://agent-panel.dev'
callback_credential='<outcome-callback-credential>'
callback_url="$origin/install/outcome"
callback_marker="$(mktemp 2>/dev/null || mktemp -t agent-panel-installer-outcome)"
failure_stage='platform_detection'
platform=''
architecture=''
release=''

deliver_outcome() {
  callback_body="$1"
  if [ -z "$callback_credential" ] || [ -z "$callback_url" ] ||     ! curl -fsS --max-time 5 --retry 0 -X POST       -H "Authorization: Bearer $callback_credential"       -H 'Content-Type: application/json'       --data "$callback_body" "$callback_url" >/dev/null; then
    printf '%s\n' 'Agent Panel could not report the installer outcome; the install result above is unchanged.' >&2
    return 1
  fi
}

report_outcome() {
  status="$1"
  outcome='failure'
  callback_stage="$failure_stage"
  if [ "$status" -eq 0 ]; then
    outcome='success'
    callback_stage=''
  fi
  callback_body="{\"outcome\":\"$outcome\",\"platform\":\"$platform\",\"architecture\":\"$architecture\",\"release\":\"$release\""
  if [ -n "$callback_stage" ]; then
    callback_body="$callback_body,\"failure_stage\":\"$callback_stage\""
  fi
  callback_body="$callback_body}"
  deliver_outcome "$callback_body" || true
}

on_wrapper_exit() {
  status="$?"
  trap - EXIT
  marker_state=''
  if [ -s "$callback_marker" ]; then
    marker_state="$(cat "$callback_marker")"
  fi
  case "$marker_state" in
    reported) ;;
    '') report_outcome "$status" ;;
    *) deliver_outcome "$marker_state" || true ;;
  esac
  rm -f "$callback_marker"
  exit "$status"
}
trap on_wrapper_exit EXIT

uname_s="$(uname -s 2>/dev/null || true)"
case "$uname_s" in
  Darwin) os="darwin"; platform="$os" ;;
  Linux) os="linux"; platform="$os" ;;
  *)
    printf '%s\n' "Agent Panel installer supports macOS and Linux, not $uname_s." >&2
    exit 1
    ;;
esac

uname_m="$(uname -m 2>/dev/null || true)"
case "$uname_m" in
  x86_64|amd64) arch="amd64"; architecture="$arch" ;;
  arm64|aarch64) arch="arm64"; architecture="$arch" ;;
  *)
    printf '%s\n' "Agent Panel installer supports amd64 and arm64, not $uname_m." >&2
    exit 1
    ;;
esac

failure_stage='manifest_download'
manifest_url="$origin/install/manifest?t=$token&os=$os&arch=$arch"
fetch_payload_with_retry() {
  attempt=1
  while [ "$attempt" -le 5 ]; do
    if payload="$(curl -fsSL "$manifest_url")"; then
      return 0
    fi
    if [ "$attempt" -eq 5 ]; then
      return 1
    fi
    sleep "$attempt"
    attempt=$((attempt + 1))
  done
}

fetch_payload_with_retry || {
  printf '%s\n' 'Agent Panel installer assets are unavailable. Generate a new command from the Host setup page in Agent Panel and try again.' >&2
  exit 1
}

failure_stage='install'
printf '%s\n' "$payload" |   AGENT_PANEL_INSTALL_CALLBACK_CREDENTIAL="$callback_credential"   AGENT_PANEL_INSTALL_CALLBACK_URL="$callback_url"   AGENT_PANEL_INSTALL_PLATFORM="$platform"   AGENT_PANEL_INSTALL_ARCHITECTURE="$architecture"   AGENT_PANEL_INSTALL_CALLBACK_MARKER="$callback_marker"   sh