#!/usr/bin/env bash
set -euo pipefail

# Supported invocation:
#   curl -fsSL https://git.ssh.surf/snxraven/gnome-jarvis/raw/branch/main/packaging/web-installer.sh | bash -s -- --enable
# Override JARVIS_SERVER and JARVIS_REPO for a mirror or private deployment.

SERVER="${JARVIS_SERVER:-https://git.ssh.surf}"
REPO="${JARVIS_REPO:-snxraven/gnome-jarvis}"
REF="${JARVIS_REF:-rolling}"
USER_AGENT="${JARVIS_USER_AGENT:-JARVIS-QVAC-web-installer/0.1}"
TMP_DIR=""

usage() {
  cat <<'EOF'
JARVIS-QVAC web installer

Usage:
  curl -fsSL https://git.ssh.surf/snxraven/gnome-jarvis/raw/branch/main/packaging/web-installer.sh | bash -s -- [--enable]

Options:
  --enable       Enable and start the per-user jarvisd.service after install.
  --help         Show this help.

Environment:
  JARVIS_SERVER  Gitea server base URL.
  JARVIS_REPO    Gitea owner/repository, default snxraven/gnome-jarvis.
  JARVIS_REF     Gitea ref to install, default rolling.
  JARVIS_USER_AGENT  HTTP User-Agent value for the archive request.
EOF
}

for arg in "$@"; do
  case "$arg" in
    --enable) ;;
    --help|-h) usage; exit 0 ;;
    *) echo "Unknown option: $arg" >&2; usage >&2; exit 2 ;;
  esac
done

command -v curl >/dev/null || { echo "curl is required" >&2; exit 1; }
command -v tar >/dev/null || { echo "tar is required" >&2; exit 1; }
TMP_DIR="$(mktemp -d "${TMPDIR:-/tmp}/jarvis-web-install.XXXXXX")"
cleanup() { rm -rf "$TMP_DIR"; }
trap cleanup EXIT

ARCHIVE_URL="${SERVER%/}/${REPO}/archive/${REF}.tar.gz"
ARCHIVE="${TMP_DIR}/jarvis.tar.gz"
case "$(uname -m)" in
  x86_64|amd64) BUNDLE_NAME="jarvis-qvac-bare-linux-x64.tar.gz" ;;
  aarch64|arm64) BUNDLE_NAME="jarvis-qvac-bare-linux-arm64.tar.gz" ;;
  *) BUNDLE_NAME="" ;;
esac
BUNDLE_URL="${JARVIS_BUNDLE_URL:-${SERVER%/}/${REPO}/releases/download/rolling/${BUNDLE_NAME}}"
BUNDLE="${TMP_DIR}/${BUNDLE_NAME}"
if [[ -n "${BUNDLE_NAME}" ]]; then
  echo "Trying the self-contained Bare bundle ${BUNDLE_NAME}"
  if curl --fail --location --silent --show-error --retry 3 --proto '=https' --tlsv1.2 \
    --user-agent "${USER_AGENT}" "${BUNDLE_URL}" -o "${BUNDLE}" && test -s "${BUNDLE}"; then
    mkdir -p "${TMP_DIR}/bundle"
    tar -xzf "${BUNDLE}" -C "${TMP_DIR}/bundle"
    SOURCE_DIR="$(find "${TMP_DIR}/bundle" -mindepth 1 -maxdepth 1 -type d -print -quit)"
    test -n "${SOURCE_DIR}" || { echo "Bare bundle contained no application directory" >&2; exit 1; }
    test -x "${SOURCE_DIR}/packaging/install.sh" || { echo "Bare bundle contained no installer" >&2; exit 1; }
    echo "Installing the bundled Bare runtime; Node.js is not required"
    exec bash "${SOURCE_DIR}/packaging/install.sh" "$@"
  fi
fi
if ! command -v npm >/dev/null || ! command -v node >/dev/null; then
  echo "No published Bare bundle was found. Use JARVIS_REF=rolling or set JARVIS_BUNDLE_URL; Node.js is only needed for a source fallback." >&2
  exit 1
fi
echo "Downloading JARVIS-QVAC source ref '${REF}' from ${SERVER}"
curl --fail --location --silent --show-error --retry 3 --proto '=https' --tlsv1.2 \
  --user-agent "${USER_AGENT}" \
  "$ARCHIVE_URL" -o "$ARCHIVE"
test -s "$ARCHIVE"
mkdir -p "$TMP_DIR/src"
tar -xzf "$ARCHIVE" -C "$TMP_DIR/src"
SOURCE_DIR="$(find "$TMP_DIR/src" -mindepth 1 -maxdepth 1 -type d -print -quit)"
test -n "$SOURCE_DIR" || { echo "Downloaded archive contained no source directory" >&2; exit 1; }
test -x "$SOURCE_DIR/packaging/install.sh" || { echo "Downloaded ref has no installer" >&2; exit 1; }

echo "Installing into the current user account"
exec bash "$SOURCE_DIR/packaging/install.sh" "$@"