#!/usr/bin/env zsh
# ambre bootstrap · https://install.ambre.kud.io
#
# Public on purpose: kud/ambre is a private repo, so the CLONE needs credentials
# but the BOOTSTRAP has to be fetchable by a machine with nothing on it yet.
# Nothing secret lives here — it asks for your token at run time.
#
#   curl -L --silent https://install.ambre.kud.io | zsh

REPO="kud/ambre"
DEST="$HOME/.ambre"

print "ambre — bootstrapping ${DEST}"

# Command Line Tools are what provide git on a fresh Mac. Already-present is not
# an error, so test for it rather than trusting xcode-select --install's status.
if ! xcode-select -p >/dev/null 2>&1; then
  print "Installing Command Line Tools — accept the dialog, then run this again."
  xcode-select --install
  exit 1
fi

if [[ -d "$DEST" ]]; then
  print "${DEST} already exists — skipping clone."
else
  # </dev/tty is load-bearing. Under `curl … | zsh` stdin IS this script, so a
  # bare `read` would swallow the lines below instead of waiting for you, and the
  # clone would run with empty credentials.
  print -n "GitHub username: ";                   read -r  GH_USER  </dev/tty
  print -n "GitHub token (repo scope, hidden): "; read -rs GH_TOKEN </dev/tty; print

  if [[ -z "$GH_USER" || -z "$GH_TOKEN" ]]; then
    print -u2 "Username and token are both required."
    exit 1
  fi

  if ! git clone "https://${GH_USER}:${GH_TOKEN}@github.com/${REPO}.git" "$DEST"; then
    print -u2 "Clone failed — check the token has repo scope and has not expired."
    exit 1
  fi

  # The token would otherwise sit in .git/config for good. Strip it straight away;
  # `ambre install` repoints origin at SSH once your keys are back from the vault.
  git -C "$DEST" remote set-url origin "https://github.com/${REPO}.git"
fi

# Verify rather than assume: a partial clone would fail here with a clearer
# message than whatever `install` would say three steps later.
if [[ ! -x "${DEST}/bin/ambre" ]]; then
  print -u2 "${DEST}/bin/ambre is missing or not executable — clone looks incomplete."
  exit 1
fi

exec "${DEST}/bin/ambre" install