#!/usr/bin/env bash
# provision-windows.sh — idempotent provisioning for the Windows host runner.
#
# Pre-warms what compile-windows.sh would download at runtime: Flutter Windows
# engine artifacts and pub packages. Short-circuits via a stamp file keyed to
# the installed Flutter version, so repeat runs return immediately.
set -euo pipefail

SCRIPT_DIR="$(dirname "$0")"
# shellcheck source=scripts/ci/_env.sh
. "${SCRIPT_DIR}/_env.sh"

STAMP_DIR="${HOME}/.cache/jiu-ci"
STAMP="${STAMP_DIR}/provisioned-windows"
CUR="${STAMP_DIR}/.flutter-version-win.cur"
mkdir -p "$STAMP_DIR"

# --- detection ---
if ! command -v flutter >/dev/null 2>&1; then
  echo "ERROR: flutter not found on PATH. Install Flutter on this runner first." >&2
  exit 1
fi
flutter --version --machine > "$CUR" 2>/dev/null || flutter --version > "$CUR" 2>&1 || true

if [ -s "$STAMP" ] && cmp -s "$STAMP" "$CUR"; then
  echo "==> provision-windows: already provisioned (Flutter unchanged), skipping."
  exit 0
fi

echo "==> provision-windows: not provisioned (or Flutter changed) — running."

# --- warm Flutter Windows engine + pub deps ---
echo "==> precache Flutter engine (windows)"
flutter precache --windows

echo "==> flutter pub get (client)"
(cd "${SCRIPT_DIR}/../../client" && flutter pub get)

# --- mark provisioned ---
cp "$CUR" "$STAMP"
echo "==> provision-windows: done."
flutter --version | head -1