lint-and-license-check.yml

name: Lint and License Check

on:
  push:
    branches:
      - main
  pull_request:
    branches:
      - "main"
      - "staging"
    types:
      - opened
      - reopened
      - synchronize
      - assigned
      - review_requested

jobs:
  lint:
    runs-on: ubuntu-latest

    steps:
      - name: Checkout code
        uses: actions/checkout@v4

      - name: Set up Node.js
        uses: actions/setup-node@v3
        with:
          node-version: '16'

      - name: Install dependencies
        working-directory: app/frontend  # Adjust path according to your repo structure
        run: npm install

      - name: Run ESLint and Filter Errors
        working-directory: app/frontend  
        id: run_eslint
        run: |
          set +e
          output=$(npm run lint --silent 2>&1)
          exit_code=$?
          echo "$output"
          clean_output=$(echo "$output" | sed 's/\x1b\[[0-9;]*m//g')  # Remove ANSI escape codes
          echo "CLEAN_OUTPUT<<EOF" >> $GITHUB_ENV
          echo "$clean_output" >> $GITHUB_ENV
          echo "EOF" >> $GITHUB_ENV

          # Extract and format file names with 'missing header' and other ESLint errors
          header_errors=$(echo "$clean_output" | grep 'missing header')
          lint_errors=$(echo "$clean_output" | grep 'error' | grep -v 'missing header')
          
          # Format the output to highlight file names
          format_output() {
            echo "$1" | while read -r line; do
              file=$(echo "$line" | awk '{print $1}')
              error_msg=$(echo "$line" | cut -d' ' -f3-)
              # Generate markdown link to the file
              file_link="[**$file**](https://github.com/${GITHUB_REPOSITORY}/blob/${GITHUB_SHA}/${file})"
              echo "$file_link $error_msg"
            done
          }

          formatted_header_errors=$(format_output "$header_errors")
          formatted_lint_errors=$(format_output "$lint_errors")
          
          # Combine formatted outputs
          combined_errors="$formatted_header_errors\n$formatted_lint_errors"

          # Check if there are any header or lint errors
          if [ -n "$combined_errors" ]; then
            echo "Errors found."
            echo "COMBINED_ERRORS<<EOF" >> $GITHUB_ENV
            echo -e "$combined_errors" >> $GITHUB_ENV
            echo "EOF" >> $GITHUB_ENV
            echo "HAS_ERRORS=true" >> $GITHUB_ENV
          else
            echo "No relevant errors found."
            echo "HAS_ERRORS=false" >> $GITHUB_ENV
          fi

          exit 0  # Always exit with 0 to avoid failing the step

      - name: Comment on PR with ESLint and Header Errors
        if: env.HAS_ERRORS == 'true'
        uses: actions/github-script@v7
        with:
          script: |
            const lintOutput = process.env.COMBINED_ERRORS;
            const issueNumber = context.issue.number || context.payload.pull_request.number;
            const owner = context.repo.owner;
            const repo = context.repo.repo;

            if (lintOutput && issueNumber) {
              const commentBody = `## Frontend Project: ESLint and License Header Issues\n\`\`\`\n${lintOutput}\n\`\`\`\nPlease review and resolve the ESLint errors and missing license headers.`;
              await github.rest.issues.createComment({
                issue_number: issueNumber,
                owner: owner,
                repo: repo,
                body: commentBody
              });
            } else {
              console.log("No relevant errors to report.");

      - name: Fail if Errors Exist
        if: env.HAS_ERRORS == 'true'
        run: exit 1  # Fail the workflow if errors exist