#!/bin/bash
set -eu

readonly PROGNAME=`/usr/bin/basename $0`
readonly PROGPATH=`echo $0 | sed -e 's,[\\/][^\\/][^\\/]*$,,'`
readonly REVISION="0.0.1-WIP"

repo_in=""
repo_out=""
dry_run=true

#
# FUNCTIONS
#

print_help()
{
cat << "EOF"
PURPOSE
    this script will start in DRY MODE by default - see --GO parameter

INSTALLATION AND PREPERATION
- install tea: https://gitea.com/gitea/tea
- create Gitea tokens for tea
    - permissions on the OLD system:
        - user: read
        - issue: read
    - permissions on the NEW system:
        - user: read
        - issue: read and write
- set up login via tea → "tea login add --help", i.e.
    - tea login add --name OLD --url https://oldgitea.example.com --token 123456789123456789
    - tea login add --name NEW --url https://newgitea.example.com --token 123459789123456789

USAGE
    -h | --help   print this help
    -i | -in      required, i.e. https://oldgitea.example.com/my_old_repo
    -o | -out     required, i.e. https://newgitea.example.com/my_new_repo
    --GO          stop dry mode
EOF
}

error_in_or_out_not_specified()
{
    echo -e "Error: --in and --out must be specified\n";
    print_help;
    exit 2
}

#
# PARAMETERS
#
if [[ "$@" == "" ]] ; then error_in_or_out_not_specified ; fi
TEMP=$(getopt -o hi:o: --long help,GO,in:,out: -n "${PROGNAME}" -- "$@")
eval set -- "${TEMP}"
while true ; do
    case "$1" in
        --help|-h)
            print_help
            exit 0
            ;;
        --in|-i)
            repo_in="$2"
            shift
            ;;
        --out|-o)
            repo_out="$2"
            shift
            ;;
        --GO)
            dry_run=false
            ;;
        --) shift ; break ;;
        *)  echo "Internal error!"
            exit 5
            ;;
    esac
    shift
done

# check required
if [[ -z "$repo_in" || -z "$repo_out" ]] ; then error_in_or_out_not_specified ; fi

#
# START
#
if $dry_run; then echo -e "###\n### DRY RUN - will not change anything\n###"; fi






tea issues list --output simple --login NEW
tea issues list --output simple --login NEW --repo eine_tolle_organisation/ein_tolles_repository

exit 0