This is an Advent of Code solution wrapper built on Laravel Zero.

You can change which years are valid challenge years by changing the LOWEST_YEAR and CURRENT_YEAR environment variables. The CURRENT_YEAR is used as a fallback for any commands that are run without a given year.

You will need to grab your session ID from the Advent of Code website. This is used for downloading your unique input for each day's challenge.

You can do this by logging into the Advent of Code website and then copying the string stored in the cookie called session. Once you've got that copied, paste it in your .env file under the AOC_SESSION key.

The adventofcode make {day} command creates a solution file and downloads your unique input for the specified day's challenge. By default, it will retrieve challenges from the year you specified in your CURRENT_YEAR environment variable. This can be set at runtime with the --year option.

For example, the following will create a solution for the 7th day in 2021:

$ php adventofcode make 7 --year=2021 

You can run the solutions for a given day or year with the day or year commands.

For example, the following will run the solution for the 7th day in 2021:

$ php adventofcode day 7 --year=2021

And the following will run all the available solutions for 2021.

$ php adventofcode year 2021

To aid with refactoring, you can set the answers for any solution by setting the $answers property on any of your Solution classes.

Let's say the answers for part A and part B of a solution are 383 and 493, you can set them with the following code:

protected array $answers = [
    'partOne' => 383,
    'partTwo' => 493,
];

By doing this, running any of your solution commands will display whether your solution has the correct answer or not.