#!/usr/bin/env bash
# This is a bash script for generating strong passwords for the Jitsi role in this ansible project:
# https://github.com/spantaleev/matrix-docker-ansible-deploy

# This script assumes that you followed the documentation at https://github.com/spantaleev/matrix-docker-ansible-deploy/blob/master/docs/configuring-playbook.md and created a folder in the source code's directory like this: 'mkdir inventory/host_vars/matrix.<your-domain>'
# it will put the generated passwords for Jitsi at the end of the vars.yml file in that directory

function generatePassword() {
    openssl rand -hex 16
}

# helper function to get the matrix domain in the host_vars directory
function get_domain_dir() {
	counter=0

	for f in *; do
	    counter=$(( counter + 1 ))
	    if [ ! -d "$f" ]; then
            echo "Error: could not find directory 'matrix.your.domain'"
            echo "Did you create it already? Please first setup your matrix homeserver before running this script."
            echo "You should start here: https://github.com/spantaleev/matrix-docker-ansible-deploy/blob/master/docs/prerequisites.md"
            exit 1
        elif [[ "$counter" -gt 1 ]]; then
            echo "Error: multiple directories found in ../host_vars/. Only one directory like 'matrix.your.domain' expected."
            echo "Please make sure there is only one directory holding your vars.yml for this ansible playbook."
            echo "Cannot continue script, exiting."
            exit 1
        fi

	    # Will not set domain if zero or multiple directories are detected
	    domain=$f
	done
}

cd ../host_vars
get_domain_dir

JICOFO_COMPONENT_SECRET=`generatePassword`
JICOFO_AUTH_PASSWORD=`generatePassword`
JVB_AUTH_PASSWORD=`generatePassword`
JIBRI_RECORDER_PASSWORD=`generatePassword`
JIBRI_XMPP_PASSWORD=`generatePassword`

echo "" >> ../host_vars/${domain}/vars.yml
echo "Jitsi passwords generated by inventory/scripts/gen-passwords.sh" >> ../host_vars/${domain}/vars.yml
echo "matrix_jitsi_jicofo_component_secret: $JICOFO_COMPONENT_SECRET" >> ../host_vars/${domain}/vars.yml
echo "matrix_jitsi_jicofo_auth_password: $JICOFO_AUTH_PASSWORD" >> ../host_vars/${domain}/vars.yml
echo "matrix_jitsi_jvb_auth_password: $JVB_AUTH_PASSWORD" >> ../host_vars/${domain}/vars.yml
echo "matrix_jitsi_jibri_recorder_password: $JIBRI_RECORDER_PASSWORD" >> ../host_vars/${domain}/vars.yml
echo "matrix_jitsi_jibri_xmpp_password: $JIBRI_XMPP_PASSWORD" >> ../host_vars/${domain}/vars.yml