set -euo pipefail
declare -a packages

COLOR_BLUE=$'\e[34m'
readonly COLOR_BLUE
COLOR_RESET=$'\e[0m'
readonly COLOR_RESET

: "${INSTALL_POSTGRES_CLIENT:?Should be true or false}"

install_postgres_client() {
    echo
    echo "${COLOR_BLUE}Installing postgres client${COLOR_RESET}"
    echo

    if [[ "${1}" == "dev" ]]; then
        packages=("libpq-dev" "postgresql-client")
    elif [[ "${1}" == "prod" ]]; then
        packages=("postgresql-client")
    else
        echo
        echo "Specify either prod or dev"
        echo
        exit 1
    fi

    curl https://www.postgresql.org/media/keys/ACCC4CF8.asc | apt-key add -
    echo "deb https://apt.postgresql.org/pub/repos/apt/ $(lsb_release -cs)-pgdg main" > /etc/apt/sources.list.d/pgdg.list
    apt-get update
    apt-get install --no-install-recommends -y "${packages[@]}"
    apt-get autoremove -yqq --purge
    apt-get clean && rm -rf /var/lib/apt/lists/*
}

if [[ ${INSTALL_POSTGRES_CLIENT:="true"} == "true" ]]; then
    install_postgres_client "${@}"
fi