submit

#! /bin/bash

# Bash script to directly submit an Advent of Code answer and log the response.
# Provide the year, day, and part (1 or 2) as command line arguments. The answer
# itself can be provided as a fourth argument or through stdin.
#
# Must set the AOC_COOKIE, AOC_REPO, and AOC_CONTACT environment variables to be
# used in curl requests.
#
# Exit statuses:
#   - 0: The answer was correct
#   - 1: There was an error with the submission
#   - 2: Submission was blocked by rate limiting
#   - 3: Submitted answer was incorrect
#
# Usage:
#   ./submit 2023 5 1 484023871
#   cat answer-1.txt | ./submit 2023 5 1

if [[ -z $AOC_COOKIE || -z $AOC_REPO || -z $AOC_CONTACT ]]; then
  echo "Must set AOC_COOKIE, AOC_REPO, and AOC_CONTACT environment variables"
  exit 1
fi

year=$1
day=$2
part=$3
answer=$4

if [[ -z $year || -z $day || -z $part ]]; then
  echo "Must call submit with the year, day, and part"
  echo "    Ex: ./submit 2023 5 1"
  exit 1
fi

if [[ -z $answer && ! -t 0 ]]; then
  read answer
fi

if [[ -z $answer ]]; then
  echo "Must provide an answer either as a fourth argument or through stdin"
  exit 1
fi

url="https://adventofcode.com/$year/day/$day"

response=$( \
  curl -s \
    -b "$AOC_COOKIE" \
    -A "$AOC_REPO by $AOC_CONTACT" \
    --data-urlencode "MIME Type=application/x-www-form-urlencoded" \
    --data-urlencode "level=$part" \
    --data-urlencode "answer=$answer" "$url/answer" \
)

success_pattern="That's the right answer!"
failure_pattern="That's not the right answer.*using the full input data"
rate_limit_pattern="You gave an answer too recently.*left to wait."
already_answered_pattern="You don't seem to be solving.*already complete it?"

success_message=$(echo "$response" | grep -o "$success_pattern")
failure_message=$(echo "$response" | grep -o "$failure_pattern")
rate_limit_message=$(echo "$response" | grep -o "$rate_limit_pattern")
already_answered_message=$(echo "$response" | grep -o "$already_answered_pattern")

if [[ -n "$already_answered_message" ]]; then
  echo "$already_answered_message"
  echo ""
  exit 1
fi

if [[ -n "$rate_limit_message" ]]; then
  echo "$rate_limit_message"
  echo ""
  exit 2
fi

if [[ -n "$failure_message" ]]; then
  echo "$failure_message."
  echo ""
  exit 3
fi

if [[ -n "$success_message" ]]; then
  echo "$success_message"
  echo ""
  exit 0
fi