#!/usr/bin/env nix-shell
#!nix-shell -I nixpkgs=../../../../ -i bash -p nix wget prefetch-yarn-deps nix-prefetch-github jq
set -euo pipefail
cd "$(dirname "$0")"

if [ "$#" -gt 1 ] || [[ "$1" == -* ]]; then
  echo "Regenerates packaging data for the hedgedoc packages."
  echo "Usage: $0 [git release tag]"
  exit 1
fi

version="$1"

if [ -z "$version" ]; then
  version="$(wget -O- "https://api.github.com/repos/hedgedoc/hedgedoc/releases?per_page=1" | jq -r '.[0].tag_name')"
fi

src="https://raw.githubusercontent.com/hedgedoc/hedgedoc/$version"

wget "$src/package.json" -O package.json
wget "$src/yarn.lock" -O yarn.lock

src_old_hash=$(nix-prefetch-url --unpack "https://github.com/hedgedoc/hedgedoc/releases/download/$version/hedgedoc-$version.tar.gz")
src_hash=$(nix hash to-sri --type sha256 $src_old_hash)
yarn_hash=$(prefetch-yarn-deps yarn.lock)

sed -i "s|version = \".*\"|version = \"$version\"|" default.nix
sed -i "s|hash = \".*\"|hash = \"$src_hash\"|" default.nix
sed -i "s|sha256 = \".*\"|sha256 = \"$yarn_hash\"|" default.nix

rm yarn.lock