#!/usr/bin/env bash
# Gather what `cargo tauri build` made for one target into release assets:
#
#   bash release/collect.sh <bundle-dir> <version> <triple> <out-dir>
#
# <bundle-dir> is target/<triple>/release/bundle. Each asset is named
# wai-quantum-desktop-<version>-<triple>.<kind>: on macOS the disk image (.dmg)
# and the app as an update installs it (.app.tar.gz); on Linux the AppImage,
# the Debian package (.deb) and the RPM package (.rpm). Beside each one goes its
# SHA-256 (<asset>.sha256, as `shasum -a 256 -c` reads it) and, when the build
# was signed for updates, its update signature (<asset>.sig). A kind the bundle
# should hold and does not, or holds twice, fails the collection. Windows
# collects in PowerShell, in the release workflow.
set -euo pipefail
if [ $# -ne 4 ]; then
  echo "usage: bash release/collect.sh <bundle-dir> <version> <triple> <out-dir>" >&2
  exit 2
fi
B="$1"; VERSION="$2"; TRIPLE="$3"; OUT="$4"
NAME="wai-quantum-desktop-$VERSION-$TRIPLE"
mkdir -p "$OUT"
sha() { ( cd "$OUT" && { command -v sha256sum >/dev/null && sha256sum "$1" || shasum -a 256 "$1"; } > "$1.sha256" ); }
# One file in $1 matching the glob $2, copied as $NAME.$3, with its .sig when there is one.
one() {
  local dir="$1" glob="$2" kind="$3" found=()
  shopt -s nullglob
  found=("$dir"/$glob)
  shopt -u nullglob
  [ "${#found[@]}" -eq 1 ] || { echo "::error::$dir holds ${#found[@]} files matching $glob, not one: ${found[*]:-none}" >&2; exit 1; }
  cp "${found[0]}" "$OUT/$NAME.$kind"
  sha "$NAME.$kind"
  if [ -f "${found[0]}.sig" ]; then
    cp "${found[0]}.sig" "$OUT/$NAME.$kind.sig"
  fi
  echo "collected $OUT/$NAME.$kind ($(cut -d' ' -f1 "$OUT/$NAME.$kind.sha256"))$([ -f "$OUT/$NAME.$kind.sig" ] && echo ', signed for updates')"
}
case "$TRIPLE" in
  *-apple-darwin)
    one "$B/dmg" '*.dmg' dmg
    # The app itself, as an update installs it: made only when the build is signed for updates.
    if compgen -G "$B/macos/*.app.tar.gz" > /dev/null; then one "$B/macos" '*.app.tar.gz' app.tar.gz; fi ;;
  *-linux-gnu)
    one "$B/appimage" '*.AppImage' AppImage
    one "$B/deb" '*.deb' deb
    one "$B/rpm" '*.rpm' rpm ;;
  *) echo "::error::release/collect.sh does not collect $TRIPLE" >&2; exit 2 ;;
esac