#!/usr/bin/env bash

# Copyright © 2023 OpenIMSDK.
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
#     http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
#

YELLOW="\e[93m"
GREEN="\e[32m"
RED="\e[31m"
ENDCOLOR="\e[0m"

printMessage() {
   printf "${YELLOW}OpenIM : $1${ENDCOLOR}\n"
}

printSuccess() {
   printf "${GREEN}OpenIM : $1${ENDCOLOR}\n"
}

printError() {
   printf "${RED}OpenIM : $1${ENDCOLOR}\n"
}

printMessage "Running local OpenIM pre-commit hook."

#flutter format .
##https://gist.github.com/benmccallum/28e4f216d9d72f5965133e6c43aaff6e
# TODO! GIT_FILE_SIZE_LIMIT=42000000 git commit -m "This commit is allowed file sizes up to 42MB"
limit=$(( 2 * 2**20 )) # 2MB

function file_too_large(){
	filename=$0
	filesize=$(( $1 / 2**20 ))

	cat <<HEREDOC

	File $filename is $filesize MB, which is larger than github's maximum
        file size (1 MB). We will not be able to push this file to GitHub.
	Commit aborted
HEREDOC

}

empty_tree=$( git hash-object -t tree /dev/null )
if git rev-parse --verify HEAD > /dev/null 2>&1
then
	against=HEAD
else
	against=empty_tree
fi

for file in $( git diff-index --cached --name-only $against ); do
	file_size=$( ls -la $file | awk '{ print $5 }')
	if [ "$file_size" -gt  "$limit" ]; then
		file_too_large $filename $file_size
		exit 1;
	fi
done