fetch-problem.yml

name: Fetch LeetCode Problem

on:
  workflow_dispatch:
    inputs:
      problem_url:
        description: "LeetCode problem URL (leave empty for today's daily challenge)"
        required: false
        type: string
        default: ""
      force_refetch:
        description: "Force re-fetch if problem.md exists"
        required: false
        type: boolean
        default: false

jobs:
  fetch:
    runs-on: ubuntu-latest
    permissions:
      contents: write

    steps:
      - name: Checkout repository
        uses: actions/checkout@v4
        with:
          fetch-depth: 1

      - name: Setup Python
        uses: actions/setup-python@v5
        with:
          python-version: "3.11"

      - name: Install dependencies
        run: |
          pip3 install html2text pyyaml

      - name: Fetch problem
        id: fetch
        uses: ./.github/actions/fetch-leetcode-problem
        with:
          problem_url: ${{ inputs.problem_url }}
          force_refetch: ${{ inputs.force_refetch }}

      - name: Check if premium
        if: steps.fetch.outputs.is_premium == 'true'
        run: |
          echo "::error::Cannot fetch premium problem: ${{ steps.fetch.outputs.title }}"
          exit 1

      - name: Commit problem.md
        if: steps.fetch.outputs.was_fetched == 'true'
        run: |
          git config user.name "github-actions[bot]"
          git config user.email "github-actions[bot]@users.noreply.github.com"
          git add "problems/${{ steps.fetch.outputs.dir_name }}/problem.md"
          git commit -m "feat: add problem metadata for ${{ steps.fetch.outputs.number }}. ${{ steps.fetch.outputs.title }}"
          git push

      - name: Summary
        run: |
          echo "## Problem Fetched Successfully" >> "$GITHUB_STEP_SUMMARY"
          echo "" >> "$GITHUB_STEP_SUMMARY"
          echo "- **Number:** ${{ steps.fetch.outputs.number }}" >> "$GITHUB_STEP_SUMMARY"
          echo "- **Title:** ${{ steps.fetch.outputs.title }}" >> "$GITHUB_STEP_SUMMARY"
          echo "- **Difficulty:** ${{ steps.fetch.outputs.difficulty }}" >> "$GITHUB_STEP_SUMMARY"
          echo "- **Topics:** ${{ steps.fetch.outputs.topics }}" >> "$GITHUB_STEP_SUMMARY"
          echo "- **Link:** [${{ steps.fetch.outputs.slug }}](https://leetcode.com/problems/${{ steps.fetch.outputs.slug }}/)" >> "$GITHUB_STEP_SUMMARY"
          echo "- **File:** \`problems/${{ steps.fetch.outputs.dir_name }}/problem.md\`" >> "$GITHUB_STEP_SUMMARY"
          echo "" >> "$GITHUB_STEP_SUMMARY"
          if [ "${{ steps.fetch.outputs.already_exists }}" == "true" ]; then
            echo "ℹ️ **Note:** Problem.md already existed. No API call was made." >> "$GITHUB_STEP_SUMMARY"
          fi