Create an Advent of Code 2025 template with automated input fetching, testing, and submission

[Tim567]

Overview

Develop a template/script for Advent of Code 2025 that:

• Automatically fetches the input file for a given problem and day from the Advent of Code website using the user's session cookie.
• Provides an easy-to-use structure or harness for testing solutions locally with provided examples and real input.
• Offers automated solution submission to Advent of Code site, capturing and displaying the result/status.

Features

1. Input Automation
   • Fetch input file for a specific year and day based on user/session info.
   • Store inputs in a local directory for later runs.
2. Testing
   • Integrate simple testing (using built-in asserts or a lightweight test framework) for checking solutions on sample input/output before running on real input.
   • Optionally allow user to provide more test cases.
3. Submission Automation
   • Script to automatically submit answers to Advent of Code and process response, including handling of wrong-right answers, wait times, and reporting result to the user.
4. Documentation & Setup
   • Instructions for configuring the session cookie securely.
   • Example usage to illustrate the workflow, e.g., python solve.py 2025 1 or similar.

Implementation Suggestions

• Choose Python for initial script (or make language-agnostic if practical).
• Separate configuration for session cookie/token to avoid accidental leaks.
• User prompts or CLI arguments for year, day, and part selection.

Benefits

• Saves time fetching/copying input and submitting answers manually.
• Reduces repeated boilerplate for new days/problems.
• Makes testing, development, and submission more reliable and streamlined.

Notes

• Take care to not expose or commit session cookies/tokens.
• Look at advent-of-code-data or AOC session tools for implementation ideas and best practices.

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This would improve usability, automation, and accelerate the workflow for Advent of Code 2025.