#!/bin/zsh
versions=$(curl -sL https://api.github.com/repos/lihaoyi/Ammonite/releases/latest)

download-version() {
	version=$(jq ".assets | map(select(.name | startswith(\"$1\")))[0]" <<<$versions)
	target=$(jq -r ".browser_download_url" <<<$version)
	timestamp=$(jq -r ".updated_at" <<<$version)

	if [[ $1 == "-n" ]]; then
		echo $target
	elif [[ $(date -d $timestamp +%s) -lt $(date -r $2 +%s) ]]; then
		echo "No update for $1"
	else
		echo "Updating $1 to $(jq .name <<<$version)"
		curl -L $target > $2
		chmod +x $2
	fi
}
download-version 2.13 $(which amm)2.13
download-version 2.12 $(which amm)2.12
download-version 3.3 $(which amm)3