#!/bin/sh

CAPTURE=
JSON=$(curl -s https://musopen.org/radio/next/)

for v in url piece piece_url; do
  eval $v='$(printf %s "$JSON" | jq -r .'$v')'
done

printf '%s (%s)\n' "$piece" "$piece_url"
filename=${piece_url%/}.mp3
filename=${filename##*/}

[ "$CAPTURE" ] || filename=

exec mpv "$url" ${filename+ --stream-capture="$filename"}