#!/usr/bin/env bash

set -euxo

export WEBODM_VERSION=1.9.7
export WEBODM_USER=odm
export WEBODM_USER_HOME="/home/${WEBODM_USER}"
export WEBODM_DIR=/opt/WebODM
export WEBODM_VENV_DIR="${WEBODM_DIR}/python3-venv"
export NODEODM_DIR=/opt/nodeodm

function deleteUser() {
    if grep -q "^${WEBODM_USER}:" /etc/passwd; then
        userdel "${WEBODM_USER}"
    fi
}

function deleteUserHome() {
    if [ -d "${WEBODM_USER_HOME}" ]; then
        rm -Rf "${WEBODM_USER_HOME}"
    fi
}

function deleteVenv() {
    if [ -d "${WEBODM_VENV_DIR}" ]; then
        rm -Rf "${WEBODM_VENV_DIR}"
    fi
}

function stopService() {
    UNIT_NAME="webodm-docker.service"
    set +e
    systemctl is-active -q "${UNIT_NAME}"
    if [ "${?}" -eq 0 ]; then
        set -e
        systemctl stop "${UNIT_NAME}"
    else
        set -e
    fi
    systemctl disable "${UNIT_NAME}"
    systemctl daemon-reload

    /opt/WebODM/webodm.sh down
}

function purge() {
    stopService
    deleteUser
    deleteVenv
    deleteUserHome
}

function abortInstall() {
    purge
}

case $1 in
    abort-install)
        abortInstall
        ;;
    remove)
        exit 0
        ;;
    purge)
        purge
        ;;
    default)
        exit 1
        ;;
esac