#!/bin/bash
# My GiLab Backup (mygb) is a script for backup my GitLab's groups and projects
# Copyright (C) 2021  Christophe Chaudier
#
# This program is free software: you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation, either version 3 of the License, or
# (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program.  If not, see <https://www.gnu.org/licenses/>.

# Constant
readonly USAGE='
mygb.sh <command> [options]                                           \n
                                                                      \n
Command :                                                             \n
init : create the configuration file                                  \n
export : export from GitLab                                           \n
import : import to GitLab                                             \n
                                                                      \n
Options :                                                             \n
 -h                : print help                                       \n
 -c path/to/conf   : read one config file                             \n
 -p path/to/projet : export the projet                                \n
 -g path/to/group  : export the group and is subgroups and projects   \n
 -a                : export all my group and subgroup                 \n
'

# Vars
config_file='.mygb_config'
export_all=false

_help() {
  echo -e "${USAGE}"
  exit 1
}

_load_config() {
  if [[ -e ${config_file} ]]; then
    # shellcheck disable=SC1090
    source ${config_file}
  else
    _create_config
  fi
}

_create_config() {
  echo "There is no file!"

  echo "What is the GitLab URL :"
  read -r gitlab_url

  echo "What is the GitLab API token :"
  read -rs gitlab_api_token

  echo "gitlab_url=\"${gitlab_url}\"" >${config_file}
  echo "gitlab_api_token=\"${gitlab_api_token}\"" >>${config_file}

  echo "The file ${config_file} was created with this content."
  echo "Please add the line below on your .gitignore"
  echo "${config_file}"
}

main() {
  echo "My GitLab Backup"
  while getopts c:p:g:ah flag; do
    case "${flag}" in
    c) config_file=${OPTARG} ;;
    p) project=${OPTARG} ;;
    g) groups=${OPTARG} ;;
    a) export_all=true ;;
    h | *) _help ;;
    esac
  done

  _load_config
}

main "$@"
