#!/usr/bin/env sh

# Copyright (C) 2022 WYATT GROUP
# Please see the AUTHORS file for details.
#
# 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
# 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/>.

usage="
usage:
    $(basename "$0") <previous_version> <new_version> -- create new analyzer files.

where:
    previous_version: last version, for example \`2.2.1\`
    new_version: new version, for example \`2.2.3\`"

old=$1
new=$2

if [ -z "$old" ]; then
   echo "previous_version cannot be null"
   echo "${usage}"
   exit 1
fi

if [ -z "$new" ]; then
   echo "new_version cannot be null"
   echo "${usage}"
   exit 1
fi

SCRIPT_PATH="${BASH_SOURCE:-$0}"
ABS_SCRIPT_PATH="$(realpath "${SCRIPT_PATH}")"
ABS_DIRECTORY="$(dirname "${ABS_SCRIPT_PATH}")"

OPTIONS="${ABS_DIRECTORY}/lib/analysis_options.yaml"
OLD_OPTIONS="${ABS_DIRECTORY}/lib/analysis_options.${old}.yaml"
NEW_OPTIONS="${ABS_DIRECTORY}/lib/analysis_options.${new}.yaml"

OPTIONS_FLUTTER="${ABS_DIRECTORY}/lib/analysis_options.flutter.yaml"
OLD_OPTIONS_FLUTTER="${ABS_DIRECTORY}/lib/analysis_options.flutter.${old}.yaml"
NEW_OPTIONS_FLUTTER="${ABS_DIRECTORY}/lib/analysis_options.flutter.${new}.yaml"

if [ ! -e "$OLD_OPTIONS" ]; then
   echo "analysis_options.${old}.yaml doesn't exists"
   echo "${usage}"
   exit 1
fi

if [ ! -e "$OLD_OPTIONS_FLUTTER" ]; then
   echo "analysis_options.flutter.${old}.yaml doesn't exists"
   echo "${usage}"
   exit 1
fi

if [ -e "$NEW_OPTIONS" ]; then
   echo "analysis_options.${new}.yaml already exists"
   echo "${usage}"
   exit 1
fi

if [ -e "$NEW_OPTIONS_FLUTTER" ]; then
   echo "analysis_options.flutter.${old}.yaml already exists"
   echo "${usage}"
   exit 1
fi

# Copy previous version files
cp "${OLD_OPTIONS}" "${NEW_OPTIONS}"
cp "${OLD_OPTIONS_FLUTTER}" "${NEW_OPTIONS_FLUTTER}"

# Search and replace old version string occurences in new files
sed -e "s/${old}/${new}/g" "${NEW_OPTIONS_FLUTTER}" > tempfile.tmp
mv -f tempfile.tmp "${NEW_OPTIONS_FLUTTER}"

echo "
# Copyright (C) 2022 WYATT GROUP
# Please see the AUTHORS file for details.
#
# 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
# 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/>.

include: package:wyatt_analysis/analysis_options.${new}.yaml
" > "${OPTIONS}"

echo "
# Copyright (C) 2022 WYATT GROUP
# Please see the AUTHORS file for details.
#
# 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
# 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/>.

include: package:wyatt_analysis/analysis_options.flutter.${new}.yaml
" > "${OPTIONS_FLUTTER}"

exit 0