#!/bin/bash

Color_Off='\033[0m'
BRed="\033[1;31m"         # Red
BGreen="\033[1;32m"       # Green
BYellow="\033[1;33m"      # Yellow
BBlue="\033[1;34m"        # Blue

MSG_FILE=$1
FILE_CONTENT="$(cat $MSG_FILE)"
REGEX='(feat: |fix: |docs: |style: |refactor: |test: |chore: )'
ERROR_MSG="Commit message format must match regex \"${REGEX}\""

if [[ $FILE_CONTENT =~ $REGEX ]]; then
 if [[ $FILE_CONTENT =~ (feat: ) ]]; then
  printf '%s %s' ":sparkles:" "$(cat $MSG_FILE)" >$MSG_FILE
 elif [[ $FILE_CONTENT =~ (fix: ) ]]; then
  printf '%s %s' ":bug:" "$(cat $MSG_FILE)" >$MSG_FILE
 elif [[ $FILE_CONTENT =~ (docs: ) ]]; then
  printf '%s %s' ":memo:" "$(cat $MSG_FILE)" >$MSG_FILE
 elif [[ $FILE_CONTENT =~ (style: ) ]]; then
  printf '%s %s' ":art:" "$(cat $MSG_FILE)" >$MSG_FILE
 elif [[ $FILE_CONTENT =~ (refactor: ) ]]; then
  printf '%s %s' ":recycle:" "$(cat $MSG_FILE)" >$MSG_FILE
 elif [[ $FILE_CONTENT =~ (test: ) ]]; then
  printf '%s %s' ":white_check_mark:" "$(cat $MSG_FILE)" >$MSG_FILE
 elif [[ $FILE_CONTENT =~ (chore: ) ]]; then
  printf '%s %s' ":wrench:" "$(cat $MSG_FILE)" >$MSG_FILE
 fi
 printf "${BGreen}Good commit!${Color_Off}"
else
 printf "${BRed}Bad commit ${BBlue}\"$FILE_CONTENT\"\n"
 printf "${BYellow}$ERROR_MSG\n"
 printf "The semantic git commit patten is expected, for details see https://gist.github.com/boazpoolman/42629d941b5f747734d296e02ecf737d\n"
 printf "commit-msg hook failed (add --no-verify to bypass)\n"
 exit 1
fi

exit 0