Revise paste BASH Torrent Search

#!/bin/bash
######################################################################
#Copyright (C) 2020  Kris Occhipinti
#https://filmsbykris.com

#This program is free software: you can redistribute it and/or modify
#it under the terms of the GNU General Public License as published by
#the Free Software Foundation, either version 3 of the License, or
#(at your option) any later version.

#This program is distributed in the hope that it will be useful,
#but WITHOUT ANY WARRANTY; without even the implied warranty of
#MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
#GNU General Public License for more details.

#You should have received a copy of the GNU General Public License
#along with this program.  If not, see <http://www.gnu.org/licenses/>.
######################################################################

csv="/tmp/torrent.csv"
url="https://gitlab.com/dessalines/torrents.csv/-/raw/master/torrents.csv"
open="xdg-open"
red=`echo -en "\e[31m"`
normal=`echo -en "\e[0m"`
#check dependences
for d in aria2c fzf
do
  [[ ! -f "/usr/bin/$d" ]] &&
    echo -e "${red}$d${normal} is needed\nplease install it\nsudo apt install ${red}$d${normal}" &&
    sleep 3 &&
    continue="$(echo -e "Continue\nExit"|fzf --prompt="Continue without $d: ")"
    [[ "$continue" == "Exit" ]] && exit 1
done

function main(){
  [[ ! -f "$csv"  || "$1" == "update" ]] && getList
  [[ "$1" == "sites" ]] && (sites;exit)
  [[ "$1" == "" ]] && search
}

function getList(){
  aria2c -x 10 "$url" -o "$csv"
  # wget "$url" -O-|while read line;do
  #   size_bytes=$(echo -e "$line" | cut -d ';' -f3)
  #   size=$(numfmt --to=iec-i --suffix=B $size_bytes)
  #   echo "$line"|cut -d\; -f1,2|tr -d "\n"
  #   echo ";$size"
  # done > "$csv"
}

function search(){
  item="$(cat "$csv"|awk -F';' '{print $1 ";" $2 ";" $3 ";" $5}'|fzf)"
  title="$(echo "$item"|cut -d\; -f2)"
  magnet="magnet:?xt=urn:btih:$(echo "$item"|cut -d\; -f1)"
  seeds=$(echo -e "$item" | cut -d ';' -f4)
  size_bytes=$(echo -e "$item" | cut -d ';' -f3)
  size=$(numfmt --to=iec-i --suffix=B $size_bytes)

a="$(echo -e "Download\nCancel"|fzf --prompt "Download $title [$size - SEEDS: $seeds]?")"
  echo -e "=======================\n$title\n$size\n$magnet\n======================="

[[ "$a" == "Download" ]] && aria2c "$magnet" || (echo "Goodbye";exit)
}

function sites(){
  read -p "Enter Search String: " q
  $open "https://t.extto.com/search/?q=$q"  
  read -p "Enter Torrent/Magnet Link: " magnet 
  [[ "$magnet" == "" ]] && echo "Good-bye" || aria2c --seed-time=0 "$magnet"
}

main $*