submit-advent-of-code.yml

name: Submit Advent of Code Solution

on:
  push:
    branches:
      - main
    paths:
      - 'puzzles/year_*/day_*/answer_part*.txt'
  workflow_dispatch:

permissions:
  contents: write
  issues: write
  repository-dispatch: write

env:
  AOC_SESSION: ${{ secrets.AOC_SESSION }}
  GH_TOKEN: ${{ secrets.USER_TOKEN }}

jobs:
  submit:
    runs-on: ubuntu-latest
    steps:
      - uses: actions/checkout@v4

      - name: Set up uv
        uses: astral-sh/setup-uv@v4
      
      - name: Install dependencies
        run: uv sync

      - name: Get changed files
        id: changed-files
        uses: tj-actions/changed-files@v42
        with:
          files: puzzles/year_*/day_*/answer_part*.txt

      - name: Extract year, day and part from filename
        id: extract-info
        run: |
          if [[ "${{ github.event_name }}" == "workflow_dispatch" ]]; then
            echo "No file changes to process"
            exit 0
          fi
          
          for file in ${{ steps.changed-files.outputs.all_changed_files }}; do
            if [[ $file =~ puzzles/year_([0-9]+)/day_([0-9]+)/answer_part([12]).txt ]]; then
              echo "year=${BASH_REMATCH[1]}" >> $GITHUB_OUTPUT
              echo "day=${BASH_REMATCH[2]}" >> $GITHUB_OUTPUT
              echo "part=${BASH_REMATCH[3]}" >> $GITHUB_OUTPUT
            fi
          done

      - name: Submit solution
        id: submit
        if: steps.extract-info.outputs.year != ''
        continue-on-error: true
        run: |
          output=$(uv run advent_of_code.py submit ${{ steps.extract-info.outputs.year }} ${{ steps.extract-info.outputs.day }} ${{ steps.extract-info.outputs.part }})
          echo "submission_result=$output" >> $GITHUB_OUTPUT

      - name: Update results in README
        if: steps.extract-info.outputs.year != ''
        run: uv run advent_of_code.py update-results ${{ steps.extract-info.outputs.year }}

      - name: Download part 2 if part 1 was correct
        id: download-part2
        if: steps.extract-info.outputs.part == '1' && steps.submit.outcome == 'success'
        run: |
          file_path=$(uv run advent_of_code.py download ${{ steps.extract-info.outputs.year }} ${{ steps.extract-info.outputs.day }})
          echo "file_path=$file_path" >> $GITHUB_OUTPUT

      - name: Configure Git
        run: |
          git config --global user.name 'github-actions[bot]'
          git config --global user.email 'github-actions[bot]@users.noreply.github.com'

      - name: Commit and push changes
        run: |
          git add puzzles/year_${{ steps.extract-info.outputs.year }}/day_${{ steps.extract-info.outputs.day }}
          git add README.md
          git commit -m "Update puzzle files for year ${{ steps.extract-info.outputs.year }} day ${{ steps.extract-info.outputs.day }}"
          git push

      - name: Trigger create-puzzle-issue workflow
        if: steps.download-part2.outputs.file_path != ''
        uses: peter-evans/repository-dispatch@v2
        with:
          token: ${{ env.GH_TOKEN }}
          event-type: create-puzzle-issue
          client-payload: '{"year": "${{ steps.extract-info.outputs.year }}", "day": "${{ steps.extract-info.outputs.day }}", "part": "2"}'