# load .env
if [ -f .env ]; then
  set -o allexport; source .env; set +o allexport
fi

# Create dir / abort if exists
f="day$(printf %02d $1)"
echo "$f"
mkdir "$f"
if [ $? -ne 0 ]; then { echo "$f already exists" ; exit 1; } fi

# create part files with template
txt=$(cat <<EOF
#!/usr/bin/env python3

lines = (x.strip() for x in open("input.txt"))

for line in lines:
    pass
EOF
)
echo "$txt" > "$f/part1.py"
echo "$txt" > "$f/part2.py"

# fetch input (set AOC_SESSION in .env file or as env var)
curl --request GET -sL \
     --cookie "session=$AOC_SESSION" \
     --url "https://adventofcode.com/2022/day/$(echo $1 | sed 's/^0*//')/input"\
     --output "$f/input.txt"

# git
git add "$f/*"