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

# Packages already-built release artifacts into release/<label>/.
# Label is required as the first CLI argument.

ROOT_DIR="$(cd "$(dirname "${BASH_SOURCE[0]}")/.." && pwd)"
cd "$ROOT_DIR"

label="${1:-}"
if [[ -z "$label" ]]; then
  echo "Usage: bash tool/package_release.sh <release-label>" >&2
  echo "Example: bash tool/package_release.sh v3.0.1" >&2
  exit 1
fi

app_name="car64"
release_dir="release/${label}"
mkdir -p "$release_dir"

copied_files=()

copy_if_exists() {
  local src="$1"
  local dst="$2"
  if [[ -f "$src" ]]; then
    cp -f "$src" "$dst"
    copied_files+=("$(basename "$dst")")
  fi
}

copy_ipa_if_exists() {
  local ipa_file
  ipa_file="$(find build -type f -name "*.ipa" 2>/dev/null | head -n 1 || true)"
  if [[ -n "$ipa_file" && -f "$ipa_file" ]]; then
    local dst="${release_dir}/${app_name}-${label}-ios.ipa"
    cp -f "$ipa_file" "$dst"
    copied_files+=("$(basename "$dst")")
  fi
}

copy_if_exists "build/app/outputs/flutter-apk/app-release.apk" \
  "${release_dir}/${app_name}-${label}-android.apk"
copy_if_exists "build/app/outputs/bundle/release/app-release.aab" \
  "${release_dir}/${app_name}-${label}-android.aab"
copy_ipa_if_exists

if [[ ${#copied_files[@]} -eq 0 ]]; then
  echo "No release artifacts found. Build APK/AAB/IPA first." >&2
  exit 1
fi

(
  cd "$release_dir"
  : > SHA256SUMS.txt
  for f in "${copied_files[@]}"; do
    sha256sum "$f" >> SHA256SUMS.txt
  done
)

commit="$(git rev-parse --short HEAD)"
branch="$(git rev-parse --abbrev-ref HEAD)"
date_utc="$(date -u +"%Y-%m-%dT%H:%M:%SZ")"

{
  echo "# Release ${label}"
  echo
  echo "Commit: ${commit}"
  echo "Branch: ${branch}"
  echo "Generated: ${date_utc}"
  echo
  echo "Files:"
  for f in "${copied_files[@]}"; do
    echo "- ${f}"
  done
  echo "- SHA256SUMS.txt"
  echo
  echo "Notes:"
  echo "- APK is for direct Android install/testing."
  echo "- AAB is for Google Play submission."
  echo "- IPA is for Apple distribution workflows and is not always directly installable."
} > "${release_dir}/MANIFEST.md"

echo "Packaged ${#copied_files[@]} artifact(s) in ${release_dir}"
ls -lh "$release_dir"