#!/usr/bin/env bash

# Global variables
OPENVIDU_FOLDER=openvidu
OPENVIDU_VERSION=master
OPENVIDU_UPGRADABLE_VERSION="2.21"
AWS_SCRIPTS_FOLDER=${OPENVIDU_FOLDER}/cluster/aws
ELASTICSEARCH_FOLDER=${OPENVIDU_FOLDER}/elasticsearch
BEATS_FOLDER=${OPENVIDU_FOLDER}/beats
DOWNLOAD_URL=https://raw.githubusercontent.com/OpenVidu/openvidu/${OPENVIDU_VERSION}

# Support docker compose v1 and v2
shopt -s expand_aliases
alias docker-compose='docker compose'
if ! docker compose version &> /dev/null; then
    unalias docker-compose
fi

# Change default http timeout for slow networks
export COMPOSE_HTTP_TIMEOUT=500
export DOCKER_CLIENT_TIMEOUT=500

fatal_error() {
    printf "\n     =======¡ERROR!======="
    printf "\n     %s" "$1"
    printf "\n"
    exit 1
}

new_ov_installation() {
     printf '\n'
     printf '\n     ======================================='
     printf '\n          Install OpenVidu Pro %s' "${OPENVIDU_VERSION}"
     printf '\n     ======================================='
     printf '\n'

     # Create folder openvidu-docker-compose
     printf '\n     => Creating folder '%s'...' "${OPENVIDU_FOLDER}"
     mkdir "${OPENVIDU_FOLDER}" || fatal_error "Error while creating the folder '${OPENVIDU_FOLDER}'"

     # Create aws scripts folder
     printf "\n     => Creating folder 'cluster/aws'..."
     mkdir -p "${AWS_SCRIPTS_FOLDER}" || fatal_error "Error while creating the folder 'cluster/aws'"

     # Create beats folder
     printf "\n     => Creating folder 'beats'..."
     mkdir -p "${BEATS_FOLDER}" || fatal_error "Error while creating the folder 'beats'"

     # Create elasticsearch folder
     printf "\n     => Creating folder 'elasticsearch'..."
     mkdir -p "${ELASTICSEARCH_FOLDER}" || fatal_error "Error while creating the folder 'elasticsearch'"

     printf "\n     => Changing permission to 'elasticsearch' folder..."
     chown 1000:1000 "${ELASTICSEARCH_FOLDER}" || fatal_error "Error while changing permission to 'elasticsearch' folder"

     # Download necessary files
     printf '\n     => Downloading OpenVidu Pro files:'

     curl --silent ${DOWNLOAD_URL}/openvidu-server/deployments/enterprise/master-node/cluster/aws/openvidu_autodiscover.sh \
          --output "${AWS_SCRIPTS_FOLDER}/openvidu_autodiscover.sh" || fatal_error "Error when downloading the file 'openvidu_autodiscover.sh'"
     printf '\n          - openvidu_autodiscover.sh'

     curl --silent ${DOWNLOAD_URL}/openvidu-server/deployments/enterprise/master-node/cluster/aws/openvidu_drop.sh \
          --output "${AWS_SCRIPTS_FOLDER}/openvidu_drop.sh" || fatal_error "Error when downloading the file 'openvidu_drop.sh'"
     printf '\n          - openvidu_drop.sh'

     curl --silent ${DOWNLOAD_URL}/openvidu-server/deployments/enterprise/master-node/cluster/aws/openvidu_launch_kms.sh \
          --output "${AWS_SCRIPTS_FOLDER}/openvidu_launch_kms.sh" || fatal_error "Error when downloading the file 'openvidu_launch_kms.sh'"
     printf '\n          - openvidu_launch_kms.sh'

     curl --silent ${DOWNLOAD_URL}/openvidu-server/deployments/enterprise/master-node/beats/filebeat.yml \
          --output "${BEATS_FOLDER}/filebeat.yml" || fatal_error "Error when downloading the file 'filebeat.yml'"
     printf '\n          - filebeat.yml'

     curl --silent ${DOWNLOAD_URL}/openvidu-server/deployments/enterprise/master-node/beats/metricbeat.yml \
          --output "${BEATS_FOLDER}/metricbeat.yml" || fatal_error "Error when downloading the file 'metricbeat.yml'"
     printf '\n          - metricbeat.yml'

     curl --silent ${DOWNLOAD_URL}/openvidu-server/deployments/enterprise/master-node/.env \
          --output "${OPENVIDU_FOLDER}/.env" || fatal_error "Error when downloading the file '.env'"
     printf '\n          - .env'

     curl --silent ${DOWNLOAD_URL}/openvidu-server/deployments/enterprise/master-node/docker-compose.yml \
          --output "${OPENVIDU_FOLDER}/docker-compose.yml" || fatal_error "Error when downloading the file 'docker-compose.yml'"
     printf '\n          - docker-compose.yml'

     curl --silent ${DOWNLOAD_URL}/openvidu-server/deployments/enterprise/master-node/openvidu \
          --output "${OPENVIDU_FOLDER}/openvidu" || fatal_error "Error when downloading the file 'openvidu'"
     printf '\n          - openvidu'

     # Add execution permissions
     printf "\n     => Adding permission:"

     chmod +x "${OPENVIDU_FOLDER}/openvidu" || fatal_error "Error while adding permission to 'openvidu' program"
     printf '\n          - openvidu'

     # Change recording folder with all permissions
     printf "\n     => Adding permission to 'recordings' folder..."
     mkdir -p "${OPENVIDU_FOLDER}/recordings"

     chmod +x "${AWS_SCRIPTS_FOLDER}/openvidu_autodiscover.sh" || fatal_error "Error while adding permission to 'openvidu_autodiscover.sh' program"
     printf '\n          - openvidu_autodiscover.sh'

     chmod +x "${AWS_SCRIPTS_FOLDER}/openvidu_drop.sh" || fatal_error "Error while adding permission to 'openvidu' openvidu_drop.sh"
     printf '\n          - openvidu_drop.sh'

     chmod +x "${AWS_SCRIPTS_FOLDER}/openvidu_launch_kms.sh" || fatal_error "Error while adding permission to 'openvidu_launch_kms.sh' program"
     printf '\n          - openvidu_launch_kms.sh'

     # Create own certificated folder
     printf "\n     => Creating folder 'owncert'..."
     mkdir "${OPENVIDU_FOLDER}/owncert" || fatal_error "Error while creating the folder 'owncert'"

     # Create vhost nginx folder
     printf "\n     => Creating folder 'custom-nginx-vhosts'..."
     mkdir "${OPENVIDU_FOLDER}/custom-nginx-vhosts" || fatal_error "Error while creating the folder 'custom-nginx-vhosts'"

     # Create vhost nginx folder
     printf "\n     => Creating folder 'custom-nginx-locations'..."
     mkdir "${OPENVIDU_FOLDER}/custom-nginx-locations" || fatal_error "Error while creating the folder 'custom-nginx-locations'"

     # Ready to use
     printf '\n'
     printf '\n'
     printf '\n     ======================================='
     printf '\n       OpenVidu Pro successfully installed.'
     printf '\n     ======================================='
     printf '\n'
     printf '\n     1. Go to openvidu folder:'
     printf '\n     $ cd openvidu'
     printf '\n'
     printf '\n     2. Configure OPENVIDU_DOMAIN_OR_PUBLIC_IP, OPENVIDU_PRO_LICENSE, '
     printf '\n     OPENVIDU_SECRET, and ELASTICSEARCH_PASSWORD in .env file:'
     printf '\n     $ nano .env'
     printf '\n'
     printf '\n     3. Start OpenVidu'
     printf '\n     $ ./openvidu start'
     printf '\n'
     printf "\n     CAUTION: The folder 'openvidu/elasticsearch' use user and group 1000 permissions. "
     printf "\n     This folder is necessary for store elasticsearch data."
     printf "\n     For more information, check:"
     printf '\n     https://docs.openvidu.io/en/%s/openvidu-pro/deployment/on-premises/#deployment-instructions' "${OPENVIDU_VERSION//v}"
     printf '\n'
     printf '\n'
     exit 0
}

get_previous_env_variable() {
     local ENV_VARIABLE_NAME=$1
     echo "$(grep -E "${ENV_VARIABLE_NAME}=.*$" "${OPENVIDU_PREVIOUS_FOLDER}/.env" | cut -d'=' -f2)"
}

replace_variable_in_new_env_file() {
     local ENV_VARIABLE_NAME=$1
     local ENV_VARIABLE_VALUE=$2
     [[ -n "${ENV_VARIABLE_VALUE}" ]] && sed -i "s|#${ENV_VARIABLE_NAME}=|${ENV_VARIABLE_NAME}=${ENV_VARIABLE_VALUE}|" "${OPENVIDU_PREVIOUS_FOLDER}/.env-${OPENVIDU_VERSION}"
}

upgrade_ov() {
     # Search local Openvidu installation
     printf '\n'
     printf '\n     ============================================'
     printf '\n       Search Previous Installation of Openvidu'
     printf '\n     ============================================'
     printf '\n'

     SEARCH_IN_FOLDERS=(
          "${PWD}"
          "/opt/${OPENVIDU_FOLDER}"
     )

     for folder in "${SEARCH_IN_FOLDERS[@]}"; do
          printf "\n     => Searching in '%s' folder..." "${folder}"

          if [ -f "${folder}/docker-compose.yml" ]; then
               OPENVIDU_PREVIOUS_FOLDER="${folder}"

               printf "\n     => Found installation in folder '%s'" "${folder}"
               break
          fi
     done

     [ -z "${OPENVIDU_PREVIOUS_FOLDER}" ] && fatal_error "No previous Openvidu installation found"

     # Upgrade Openvidu
     OPENVIDU_PREVIOUS_VERSION=$(grep 'Openvidu Version:' "${OPENVIDU_PREVIOUS_FOLDER}/docker-compose.yml" | awk '{ print $4 }')
     [ -z "${OPENVIDU_PREVIOUS_VERSION}" ] && fatal_error "Can't find previous OpenVidu version"

     # In this point using the variable 'OPENVIDU_PREVIOUS_VERSION' we can verify if the upgrade is
     # posible or not. If it is not posible launch a warning and stop the upgrade.
     if [[ "${OPENVIDU_PREVIOUS_VERSION}" != "${OPENVIDU_UPGRADABLE_VERSION}."* ]]; then
          fatal_error "You can't update from version ${OPENVIDU_PREVIOUS_VERSION} to ${OPENVIDU_VERSION}.\nNever upgrade across multiple major versions."
     fi

     printf '\n'
     printf '\n     ======================================='
     printf '\n       Upgrade OpenVidu Pro %s to %s' "${OPENVIDU_PREVIOUS_VERSION}" "${OPENVIDU_VERSION}"
     printf '\n     ======================================='
     printf '\n'

     ROLL_BACK_FOLDER="${OPENVIDU_PREVIOUS_FOLDER}/.old-${OPENVIDU_PREVIOUS_VERSION}"
     TMP_FOLDER="${OPENVIDU_PREVIOUS_FOLDER}/tmp"
     ACTUAL_FOLDER="${PWD}"

     printf "\n     Creating rollback folder '%s'..." ".old-${OPENVIDU_PREVIOUS_VERSION}"
     mkdir "${ROLL_BACK_FOLDER}" || fatal_error "Error while creating the folder '.old-${OPENVIDU_PREVIOUS_VERSION}'"

     printf "\n     Creating temporal folder 'tmp'..."
     mkdir "${TMP_FOLDER}" || fatal_error "Error while creating the folder 'temporal'"

     # Download necessary files
     printf '\n     => Downloading new OpenVidu Pro files:'

     curl --silent ${DOWNLOAD_URL}/openvidu-server/deployments/enterprise/master-node/cluster/aws/openvidu_autodiscover.sh \
          --output "${TMP_FOLDER}/openvidu_autodiscover.sh" || fatal_error "Error when downloading the file 'openvidu_autodiscover.sh'"
     printf '\n          - openvidu_autodiscover.sh'

     curl --silent ${DOWNLOAD_URL}/openvidu-server/deployments/enterprise/master-node/cluster/aws/openvidu_drop.sh \
          --output "${TMP_FOLDER}/openvidu_drop.sh" || fatal_error "Error when downloading the file 'openvidu_drop.sh'"
     printf '\n          - openvidu_drop.sh'

     curl --silent ${DOWNLOAD_URL}/openvidu-server/deployments/enterprise/master-node/cluster/aws/openvidu_launch_kms.sh \
          --output "${TMP_FOLDER}/openvidu_launch_kms.sh" || fatal_error "Error when downloading the file 'openvidu_launch_kms.sh'"
     printf '\n          - openvidu_launch_kms.sh'

     curl --silent ${DOWNLOAD_URL}/openvidu-server/deployments/enterprise/master-node/beats/filebeat.yml \
          --output "${TMP_FOLDER}/filebeat.yml" || fatal_error "Error when downloading the file 'filebeat.yml'"
     printf '\n          - filebeat.yml'

     curl --silent ${DOWNLOAD_URL}/openvidu-server/deployments/enterprise/master-node/beats/metricbeat.yml \
          --output "${TMP_FOLDER}/metricbeat.yml" || fatal_error "Error when downloading the file 'metricbeat.yml'"
     printf '\n          - metricbeat.yml'

     curl --silent ${DOWNLOAD_URL}/openvidu-server/deployments/enterprise/master-node/.env \
          --output "${TMP_FOLDER}/.env" || fatal_error "Error when downloading the file '.env'"
     printf '\n          - .env'

     curl --silent ${DOWNLOAD_URL}/openvidu-server/deployments/enterprise/master-node/docker-compose.yml \
          --output "${TMP_FOLDER}/docker-compose.yml" || fatal_error "Error when downloading the file 'docker-compose.yml'"
     printf '\n          - docker-compose.yml'

     curl --silent ${DOWNLOAD_URL}/openvidu-server/deployments/enterprise/master-node/openvidu \
          --output "${TMP_FOLDER}/openvidu" || fatal_error "Error when downloading the file 'openvidu'"
     printf '\n          - openvidu'

     # Downloading new images and stopped actual Openvidu
     printf '\n     => Downloading new images...'
     printf '\n'
     sleep 1

     printf "\n          => Moving to 'tmp' folder..."
     printf '\n'
     cd "${TMP_FOLDER}" || fatal_error "Error when moving to 'tmp' folder"
     printf '\n'
     docker-compose pull || true

     printf '\n     => Stopping Openvidu...'
     printf '\n'
     sleep 1

     printf "\n          => Moving to 'openvidu' folder..."
     printf '\n'
     cd "${OPENVIDU_PREVIOUS_FOLDER}" || fatal_error "Error when moving to 'openvidu' folder"
     printf '\n'
     docker-compose down || true

     printf '\n'
     printf '\n     => Moving to working dir...'
     cd "${ACTUAL_FOLDER}" || fatal_error "Error when moving to working dir"

     # Move old files to rollback folder
     printf '\n     => Moving previous installation files to rollback folder:'

     mv "${OPENVIDU_PREVIOUS_FOLDER}/docker-compose.yml" "${ROLL_BACK_FOLDER}" || fatal_error "Error while moving previous 'docker-compose.yml'"
     printf '\n          - docker-compose.yml'

     mv "${OPENVIDU_PREVIOUS_FOLDER}/openvidu" "${ROLL_BACK_FOLDER}" || fatal_error "Error while moving previous 'openvidu'"
     printf '\n          - openvidu'

     mv "${OPENVIDU_PREVIOUS_FOLDER}/cluster/aws" "${ROLL_BACK_FOLDER}" || fatal_error "Error while moving previous 'cluster/aws'"
     printf '\n          - cluster/aws'

     mv "${OPENVIDU_PREVIOUS_FOLDER}/beats" "${ROLL_BACK_FOLDER}" || fatal_error "Error while moving previous 'beats'"
     printf '\n          - beats'

     cp "${OPENVIDU_PREVIOUS_FOLDER}/.env" "${ROLL_BACK_FOLDER}" || fatal_error "Error while moving previous '.env'"
     printf '\n          - .env'

     if [ -d "${OPENVIDU_PREVIOUS_FOLDER}/custom-nginx-vhosts" ]; then
          mv "${OPENVIDU_PREVIOUS_FOLDER}/custom-nginx-vhosts" "${ROLL_BACK_FOLDER}" || fatal_error "Error while moving previous directory 'custom-nginx-vhosts'"
          printf '\n          - custom-nginx-vhosts'
     fi

     if [ -d "${OPENVIDU_PREVIOUS_FOLDER}/custom-nginx-locations" ]; then
          mv "${OPENVIDU_PREVIOUS_FOLDER}/custom-nginx-locations" "${ROLL_BACK_FOLDER}" || fatal_error "Error while moving previous directory 'custom-nginx-locations'"
          printf '\n          - custom-nginx-locations'
     fi

     # Move tmp files to Openvidu
     printf '\n     => Updating files:'

     mv "${TMP_FOLDER}/docker-compose.yml" "${OPENVIDU_PREVIOUS_FOLDER}" || fatal_error "Error while updating 'docker-compose.yml'"
     printf '\n          - docker-compose.yml'

     mv "${TMP_FOLDER}/.env" "${OPENVIDU_PREVIOUS_FOLDER}/.env-${OPENVIDU_VERSION}" || fatal_error "Error while moving previous '.env'"
     printf '\n          - .env-%s' "${OPENVIDU_VERSION}"

     mv "${TMP_FOLDER}/openvidu" "${OPENVIDU_PREVIOUS_FOLDER}" || fatal_error "Error while updating 'openvidu'"
     printf '\n          - openvidu'

     mkdir "${OPENVIDU_PREVIOUS_FOLDER}/cluster/aws" || fatal_error "Error while creating the folder 'cluster/aws'"

     mkdir "${OPENVIDU_PREVIOUS_FOLDER}/beats" || fatal_error "Error while creating the folder 'beats'"

     mv "${TMP_FOLDER}/openvidu_autodiscover.sh" "${OPENVIDU_PREVIOUS_FOLDER}/cluster/aws" || fatal_error "Error while updating 'openvidu_autodiscover.sh'"
     printf '\n          - openvidu_autodiscover.sh'

     mv "${TMP_FOLDER}/openvidu_drop.sh" "${OPENVIDU_PREVIOUS_FOLDER}/cluster/aws" || fatal_error "Error while updating 'openvidu_drop.sh'"
     printf '\n          - openvidu_drop.sh'

     mv "${TMP_FOLDER}/openvidu_launch_kms.sh" "${OPENVIDU_PREVIOUS_FOLDER}/cluster/aws" || fatal_error "Error while updating 'openvidu_launch_kms.sh'"
     printf '\n          - openvidu_launch_kms.sh'

     mv "${TMP_FOLDER}/filebeat.yml" "${OPENVIDU_PREVIOUS_FOLDER}/beats/filebeat.yml" || fatal_error "Error while updating 'filebeat.yml'"
     printf '\n          - filebeat.yml'

     mv "${TMP_FOLDER}/metricbeat.yml" "${OPENVIDU_PREVIOUS_FOLDER}/beats/metricbeat.yml" || fatal_error "Error while updating 'metricbeat.yml'"
     printf '\n          - metricbeat.yml'

     printf "\n     => Deleting 'tmp' folder"
     rm -rf "${TMP_FOLDER}" || fatal_error "Error deleting 'tmp' folder"

     # Add execution permissions
     printf "\n     => Adding permission to 'openvidu' program..."

     chmod +x "${OPENVIDU_PREVIOUS_FOLDER}/openvidu" || fatal_error "Error while adding permission to 'openvidu' program"
     printf '\n          - openvidu'

     # Change recording folder with all permissions
     printf "\n     => Adding permission to 'recordings' folder..."
     mkdir -p "${OPENVIDU_PREVIOUS_FOLDER}/recordings"

     chmod +x "${OPENVIDU_PREVIOUS_FOLDER}/cluster/aws/openvidu_autodiscover.sh" || fatal_error "Error while adding permission to 'openvidu_autodiscover.sh' program"
     printf '\n          - openvidu_autodiscover.sh'

     chmod +x "${OPENVIDU_PREVIOUS_FOLDER}/cluster/aws/openvidu_drop.sh" || fatal_error "Error while adding permission to 'openvidu' openvidu_drop.sh"
     printf '\n          - openvidu_drop.sh'

     chmod +x "${OPENVIDU_PREVIOUS_FOLDER}/cluster/aws/openvidu_launch_kms.sh" || fatal_error "Error while adding permission to 'openvidu_launch_kms.sh' program"
     printf '\n          - openvidu_launch_kms.sh'

     # Define old mode: On Premise or Cloud Formation
     OLD_MODE=$(grep -E "Installation Mode:.*$" "${ROLL_BACK_FOLDER}/docker-compose.yml" | awk '{ print $4,$5 }')
     [ -n "${OLD_MODE}" ] && sed -i -r "s/Installation Mode:.+/Installation Mode: ${OLD_MODE}/" "${OPENVIDU_PREVIOUS_FOLDER}/docker-compose.yml"

     # Update .env variables to new .env-version
     AWS_REGION=$(get_previous_env_variable AWS_DEFAULT_REGION)
     if [[ -n ${AWS_REGION} ]]; then

          # Get new AMI ID
          NEW_AMI_ID=$(curl https://s3-eu-west-1.amazonaws.com/aws.openvidu.io/CF-OpenVidu-Pro-${OPENVIDU_VERSION//v}.yaml --silent |
                         sed -n -e '/KMSAMIMAP:/,/Metadata:/ p' |
                         grep -A 1 "${AWS_REGION}" | grep AMI | tr -d " " | cut -d":" -f2)
          [[ -z ${NEW_AMI_ID} ]] && fatal_error "Error while getting new AWS_IMAGE_ID for Media Nodes"

          # Get previous values
          PREV_AWS_DEFAULT_REGION=$(get_previous_env_variable AWS_DEFAULT_REGION)
          PREV_AWS_INSTANCE_TYPE=$(get_previous_env_variable AWS_INSTANCE_TYPE)
          PREV_AWS_INSTANCE_ID=$(get_previous_env_variable AWS_INSTANCE_ID)
          PREV_AWS_KEY_NAME=$(get_previous_env_variable AWS_KEY_NAME)
          PREV_AWS_SUBNET_ID=$(get_previous_env_variable AWS_SUBNET_ID)
          PREV_AWS_SECURITY_GROUP=$(get_previous_env_variable AWS_SECURITY_GROUP)
          PREV_AWS_STACK_ID=$(get_previous_env_variable AWS_STACK_ID)
          PREV_AWS_STACK_NAME=$(get_previous_env_variable AWS_STACK_NAME)
          PREV_AWS_CLI_DOCKER_TAG=$(get_previous_env_variable AWS_CLI_DOCKER_TAG)
          PREV_AWS_VOLUME_SIZE=$(get_previous_env_variable AWS_VOLUME_SIZE)

          # Replace variables in new .env-version file
          replace_variable_in_new_env_file "AWS_DEFAULT_REGION" "${PREV_AWS_DEFAULT_REGION}"
          replace_variable_in_new_env_file "AWS_INSTANCE_TYPE" "${PREV_AWS_INSTANCE_TYPE}"
          replace_variable_in_new_env_file "AWS_INSTANCE_ID" "${PREV_AWS_INSTANCE_ID}"
          replace_variable_in_new_env_file "AWS_KEY_NAME" "${PREV_AWS_KEY_NAME}"
          replace_variable_in_new_env_file "AWS_SUBNET_ID" "${PREV_AWS_SUBNET_ID}"
          replace_variable_in_new_env_file "AWS_SECURITY_GROUP" "${PREV_AWS_SECURITY_GROUP}"
          replace_variable_in_new_env_file "AWS_STACK_ID" "${PREV_AWS_STACK_ID}"
          replace_variable_in_new_env_file "AWS_STACK_NAME" "${PREV_AWS_STACK_NAME}"
          replace_variable_in_new_env_file "AWS_CLI_DOCKER_TAG" "${PREV_AWS_CLI_DOCKER_TAG}"
          replace_variable_in_new_env_file "AWS_VOLUME_SIZE" "${PREV_AWS_VOLUME_SIZE}"

          # Replace new AMI
          replace_variable_in_new_env_file "AWS_IMAGE_ID" "${NEW_AMI_ID}"
     fi


     # Ready to use
     printf '\n'
     printf '\n'
     printf '\n     ================================================'
     printf "\n     Openvidu successfully upgraded to version %s" "${OPENVIDU_VERSION}"
     printf '\n     ================================================'
     printf '\n'
     printf "\n     1. A new file 'docker-compose.yml' has been created with the new OpenVidu %s services" "${OPENVIDU_VERSION}"
     printf '\n'
     printf "\n     2. The previous file '.env' remains intact, but a new file '.env-%s' has been created." "${OPENVIDU_VERSION}"
     printf "\n     Transfer any configuration you wish to keep in the upgraded version from '.env' to '.env-%s'." "${OPENVIDU_VERSION}"
     printf "\n     When you are OK with it, rename and leave as the only '.env' file of the folder the new '.env-%s'." "${OPENVIDU_VERSION}"
     printf '\n'
     printf '\n     3. Start new version of Openvidu'
     printf '\n     $ ./openvidu start'
     printf '\n'
     printf "\n     If you want to rollback, all the files from the previous installation have been copied to folder '.old-%s'" "${OPENVIDU_PREVIOUS_VERSION}"
     printf '\n'
     printf '\n'
     printf '\n'
}

# Check docker and docker-compose installation
if ! command -v docker > /dev/null; then
     echo "You don't have docker installed, please install it and re-run the command"
     exit 0
fi

if ! command -v docker-compose > /dev/null; then
     echo "You don't have docker-compose installed, please install it and re-run the command"
     exit 0
else
     COMPOSE_VERSION=$(docker-compose version --short | sed "s/-rc[0-9]*//")
     if ! printf '%s\n%s\n' "1.24" "$COMPOSE_VERSION" | sort -V -C; then
          echo "You need a docker-compose version equal or higher than 1.24, please update your docker-compose and re-run the command"; \
          exit 0
     fi
fi

# Check type of installation
if [[ -n "$1" && "$1" == "upgrade" ]]; then
     upgrade_ov
else
     new_ov_installation
fi