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

ROOT=$(cd -- "$(dirname -- "${BASH_SOURCE[0]}")/.." && pwd)
VERSION=$(awk -F'"' '/^version =/{print $2; exit}' "$ROOT/Cargo.toml")
REF=${1:-HEAD}
DIST_DIR=${DIST_DIR:-"$ROOT/dist"}
SOURCE_ARCHIVE="$DIST_DIR/lumen-wallpaper-$VERSION-source.tar.gz"
INSTALLER="$DIST_DIR/lumen-wallpaper-$VERSION-installer.run"

command -v git >/dev/null 2>&1 || {
    printf 'Release packaging requires git\n' >&2
    exit 1
}
git -C "$ROOT" rev-parse --verify "$REF^{commit}" >/dev/null
mkdir -p "$DIST_DIR"

git -C "$ROOT" archive --format=tar.gz \
    --prefix="Lumen-wallpaper-$VERSION/" "$REF" -o "$SOURCE_ARCHIVE"

if tar -tzf "$SOURCE_ARCHIVE" | grep -E '(^|/)(build|target|dist|\.env)(/|$)|\.(log|swp|tmp)$' >/dev/null; then
    printf 'Release archive contains a forbidden local artifact\n' >&2
    exit 1
fi

sed "s/@LUMEN_VERSION@/$VERSION/g" "$ROOT/packaging/installer-stub.sh" > "$INSTALLER"
base64 "$SOURCE_ARCHIVE" >> "$INSTALLER"
chmod +x "$INSTALLER"

(
    cd "$DIST_DIR"
    sha256sum "$(basename "$SOURCE_ARCHIVE")" "$(basename "$INSTALLER")" > SHA256SUMS
)
printf 'Created %s\nCreated %s\n' "$SOURCE_ARCHIVE" "$INSTALLER"