#!/usr/bin/env bash
#
# Generates "random" e-mail addresses or domains.

COUNT=1
MAX_DOMAIN=$1
MAX_ALIAS=$2

for i in $(seq 1 $MAX_DOMAIN); do

	# domain
	LEN2=$(let RND2=$RANDOM%8+3; echo $RND2)
	DOMAIN=$(echo `</dev/urandom tr -dc a-z | head -c$LEN2`)

	# TLD
	LEN3=$(let RND3=$RANDOM%2+2; echo $RND3)
	TLD=$(echo `</dev/urandom tr -dc a-z | head -c$LEN3`)

	DOM="$DOMAIN.$TLD"
	echo "INSERT INTO virtual_domains (id,name) VALUES(NULL,'$DOM');"

	# left-hand side
	for i in $(seq 1 $MAX_ALIAS); do
		LEN1=$(let RND1=$RANDOM%8+3; echo $RND1)
		LHS=$(echo `</dev/urandom tr -dc a-z | head -c$LEN1`)
		echo "INSERT INTO virtual_aliases (id,domain_id,source,destination) VALUES(NULL,$COUNT,'src-$LHS@$DOM','dst-$LHS@$DOM');"
	done

	COUNT=$(($COUNT+1))
	echo -e "\r"
done