plagiarism-check.yml

on:
  issue_comment:
    types: [created]

permissions:
  contents: read
  issues: read
  pull-requests: write

jobs:
  permission-check-job:
    runs-on: ubuntu-latest
    if: |
      github.event.issue.pull_request &&
      contains(github.event.comment.body, '/plagiarismcheck')
    outputs:
      permission: ${{ steps.permissions-check.outputs.defined }}
    steps:
      - name: Check for Secret availability
        id: permissions-check
        shell: bash
        run: |
          echo "defined=${{ contains(fromJSON(secrets.WIKI_REVIEWERS), github.actor) }}" >> $GITHUB_OUTPUT;
  

  plagiarism-check:
    runs-on: ubuntu-latest
    name: "Checks a new article from a PR for plagiarism"
    needs: [ permission-check-job ]
    if: needs.permission-check-job.outputs.permission == 'true'
    env:
          GH_TOKEN: "${{ secrets.GITHUB_TOKEN }}"

    steps:
      - name: Check out repository
        uses: actions/checkout@v4

      - name: Go to PR files
        run: gh pr checkout "${{ github.event.issue.number }}"
        
      - name: Save article contents
        run: |
          pr_number="${{ github.event.issue.number }}"
          file_path="$(gh pr diff --name-only $pr_number | grep '\.md' | head -n 1)"
          if [ -n "$file_path" ]; then
            cat "$file_path" > article.txt
          else
            gh pr comment "${{ github.event.issue.number }}" --body "No .md file found in the PR."
            exit 1
          fi
      - name: Check for plagiarism
        run: |
          content="$(cat article.txt)"
          escaped_content=$(jq -Rs . <<<"$content")
          result="$(curl -X POST "${{ secrets.WORKER_URL }}" -H "Content-Type: application/json" -d "{\"text\": $escaped_content}")"
          echo "$result" > results.txt
      - name: Format and post response
        run: |
          response=$(cat results.txt)
          results=$(echo "$response" | jq -r '.results')
          gh pr comment "${{ github.event.issue.number }}" --body "$results"