#!/usr/bin/env bash
set -eu

MYSELF=$(realpath "$0")
MYDIR=$(dirname "$MYSELF")
. "$MYDIR"/get-tokens.sh

PLAYLIST_ID=${PLAYLIST_ID:-"2BoXyJeV0fhEHOy4uiByxr"}

i=0
iter_url=https://api.spotify.com/v1/playlists/$PLAYLIST_ID/tracks
while :; do
  RES=$(curl --request GET \
    --url "$iter_url" \
    --header 'Authorization: Bearer '"$BEARER_TOKEN" \
    --header 'client-token: '"$TOKEN" 2> /dev/null)

  iter_url=$(jq -r .next <<< "$RES")
  echo "$RES"

  i=$((i+1))
  [[ "$iter_url" == "null" ]] && break
done \
  | pv \
  | jq .items \
  | jq -s 'reduce .[] as $x ([]; . + $x)' \
  | jq 'del(.. | .available_markets?, .added_by?)' > playlist.json

printf "downloaded %s songs metadata" "$(jq length playlist.json)"