#!/bin/bash
name="Remote Media Killer"
version=1.0.0
author="Joe"
license="GNU GPLv3"

UserInput() {
  read -r -p "$(echo -e 'Domain:')" domain
  read -r -p "$(echo -e 'Time:')" time
  read -s -r -p "$(echo -e 'Token:')" token
}

ExecutePurge() {
  echo 'Purging remote media, please wait.'
  curl -X POST "https://$1/_synapse/admin/v1/purge_media_cache?before_ts=$2&access_token=$3" --data '{}'
}


UnixTimeMs() {
  unix_time_ms="$(($(date -d "$1" +'%s') * 1000))"
}

DomainCheck() {
  local result=$(perl -pe 's/(?=^.{4,253}$)(^((?!-)[a-zA-Z0-9-]{1,63}(?<!-)\.)+[a-zA-Z]{2,63}$)/pass/g' <<< "$1")
  if [ "$result" = "pass" ]; then
    return 0;
  else
    echo -e '\nError: Not a valid domain.\n'
    exit 1;
  fi
}

EchoInfo() {
  echo "$name $version - Licensed $license by $author"
}

main() {
  EchoInfo;
  UserInput;
  DomainCheck "$domain";
  UnixTimeMs "$time";
  ExecutePurge "$domain" "$unix_time_ms" "$token"
}

main