#!/usr/bin/env bash
copy_template() {
    cp -f ../../templates/$1 ./$2
}

write_inventory_group() {
    local fmt="[$1]\n"
    for ((i=$2; i<$2+$3; i++)) do
        fmt+="192.168.56.$i\n"
    done
    echo -e $fmt >> ./inventory
}

# Take customer inputs
read -p "Klantnaam: " customerName
# read -p "IpInt: " ipAddr
# read -p "Number of webservers: " numWebserver
# read -p "Number of loadbalancers: " numLoadbalancers
# read -p "Number of postgresql instances: " numPostgresql
ipAddr=15
numWebserver=0
numLoadbalancers=0
numPostgresql=1

# Create customer directory and cd
mkdir -p ./customers/$customerName && cd $_

# Copy and fill-in necessary templates
copy_template ./Vagrantfile.template ./Vagrantfile
sed -i "s/#{customerName}/$customerName/" ./Vagrantfile
sed -i "s/#{ipAddr}/$ipAddr/" ./Vagrantfile
sed -i "s/#{numWebserver}/$numWebserver/" ./Vagrantfile
sed -i "s/#{numLoadbalancers}/$numLoadbalancers/" ./Vagrantfile
sed -i "s/#{numPostgresql}/$numPostgresql/" ./Vagrantfile

copy_template ./ansible.cfg.template ./ansible.cfg

# Generate ansible inventory file.
ipOffset=$ipAddr

write_inventory_group "webserver" $ipOffset $numWebserver
((ipOffset+=numWebserver))

write_inventory_group "loadbalancer" $ipOffset $numLoadbalancers
((ipOffset+=numLoadbalancers))

write_inventory_group "postgresql" $ipOffset $numPostgresql
((ipOffset+=numPostgresql))

# Generate a new seperate ssh key for the customer
mkdir -p ./.ssh/
ssh-keygen -t rsa -b 2048 -f ./.ssh/id_rsa

# Provision and configure machines
vagrant up
ansible-playbook ../../site.yml