#!/usr/bin/env bash

USAGE="./yt-dlp-best \"URL\"
  Fetches the best format of a YT video (ideally in mp4)"

if [ $# -ne 1 ]; then
    echo "$USAGE"
    exit 1
fi

URL=$1

FMT_LINE=$(yt-dlp -F "${URL}" | tail -n 2 | grep "mp4")

FMT=$(echo ${FMT_LINE} | cut -d" " -f1)

echo "${FMT_LINE}"
echo "yt-dlp -f ${FMT}+m4a \"${URL}\""
read -p "proceed (Y/N): " answer

if [[ "$answer" =~ ^[yY][eE]{0,1}[sS]{0,1}$ ]]; then
    yt-dlp -f ${FMT}+m4a "${URL}"
    exit 0
else
    echo "Okay, cancelling"
    exit 1
fi