#!/usr/bin/env bash
# Fetch Nothing's Glyph Matrix SDK into app/libs/.
#
# The .aar is not on Maven and its licence (clause 2.1(c)) forbids
# redistribution, so it cannot be committed — hence this script and the
# .gitignore entry. Without it the build still works: `app/build.gradle.kts`
# compiles the no-op display instead and the rear matrix is simply inert.
#
#   ./fetch-glyph-sdk.sh        # or: make glyph-sdk
set -euo pipefail

HERE=$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)
DEST="$HERE/app/libs/glyph-matrix-sdk-2.0.aar"
KIT=https://github.com/Nothing-Developer-Programme/GlyphMatrix-Developer-Kit
RAW="$KIT/raw/main/glyph-matrix-sdk-2.0.aar"

if [[ -f $DEST && ${1:-} != --force ]]; then
    echo "already present: $DEST"
    echo "(pass --force to re-download)"
    exit 0
fi

mkdir -p "$(dirname "$DEST")"
echo "downloading the Glyph Matrix SDK from $KIT"
tmp=$(mktemp)
trap 'rm -f "$tmp"' EXIT
curl -fsSL -o "$tmp" "$RAW"

# An .aar is a zip holding classes.jar; a redirect to an HTML error page is not.
if ! unzip -l "$tmp" 2>/dev/null | grep -q classes.jar; then
    echo "error: what came back is not an .aar. Download it by hand from" >&2
    echo "  $KIT" >&2
    echo "and put it at $DEST" >&2
    exit 1
fi

mv "$tmp" "$DEST"
trap - EXIT
echo "installed $DEST ($(du -h "$DEST" | cut -f1))"
echo
echo "Licence: Nothing's Glyph SDK EULA — see $KIT/blob/main/LICENSE.md."
echo "It is not redistributable, which is why this file is git-ignored."