#!/usr/bin/env bash
#
# The bumbailiff allows the team to take up a small amount of technical debt
# (TODOs in the code) for a limited period. After that period the script fails.
#
# It will find // TODO in .cs files
#
# For example, if the allowed period for all the TODOs is 14 days.
#   * It's OK to have 1 TODO that is 13 days old
#   * It's OK to have 3 TODOs that are 4 days old
#   * It's NOT OK to have 3 TODOs that are 5 days old
#   * It's NOT OK to have 1 TODO that is 14 days old
#
# Originally written by @aslakhellesoy and extended by the Cucumber Pro team
#
if [ -n "$BUMBAILIFF_IGNORE_LA_LA_LA" ] ; then exit 0 ; fi
set -uf -o pipefail


RED='\033[0;31m'
GREEN='\033[0;32m'
ORANGE='\033[0;33m'
BLUE='\033[0;34m'
BOLD='\033[1m'
NC='\033[0m'
LIGHT_GRAY='\033[0;37m'

MAX_AGE=150
OK_AGE=$(($MAX_AGE / 2))

todos=$((git grep --files-with-matches "\(\/\/\)\s*TODO" -- "*.cs" || echo "") | xargs -I % sh -c 'echo %; git blame --date=raw % | grep "\(\/\/\|\#\)\s*TODO"')

now_seconds_since_epoch=$(date +%s)
total_days=0

while read -r line; do
  if [[ "${line}" =~ ([0-9]{10}) ]]; then
    commit_seconds_since_epoch=${BASH_REMATCH[1]}
    days_old=$(( (${now_seconds_since_epoch} - ${commit_seconds_since_epoch}) / 86400 ))
    total_days=$((${total_days} + ${days_old}))
    shopt -s extglob
    location="${line%// TODO*}"
    location="${location%%*( )}"
    todo="${line##*// }"

    if ((${days_old}<=${OK_AGE}))
    then
      color="${GREEN}"
    elif ((${days_old}<=${MAX_AGE}))
    then
      color="${ORANGE}"
    else
      color="${RED}"
    fi
    echo -e "${color}${days_old} days old${LIGHT_GRAY} ${location}${NC}\n${todo}\n"
  else
    echo -e "${BOLD}${line}${NC}"
  fi
done <<< "${todos}"

status=0
if ((${total_days}<=${OK_AGE}))
then
  color="${GREEN}"
elif ((${total_days}<=${MAX_AGE}))
then
  color="${ORANGE}"
else
  color="${RED}"
  status=1
fi

echo -e "💵  ${color}${total_days} TODO-days accumulated. Max allowance is ${MAX_AGE}${NC}"
exit ${status}