name: Lint Check

on:
  pull_request:
    branches: [ master ]
  workflow_dispatch:

concurrency:
  group: ${{ github.workflow }}-${{ github.ref }}
  cancel-in-progress: true

jobs:
  lint:
    name: Lint Check
    runs-on: ubuntu-latest

    permissions:
      contents: read
      pull-requests: write

    steps:
      - name: Checkout Repository
        uses: actions/checkout@v4
        with:
          fetch-depth: 0

      - name: Get Changed Files
        id: changed-files
        uses: tj-actions/changed-files@v45

      - name: Setup Node.js
        if: steps.changed-files.outputs.any_changed == 'true'
        uses: actions/setup-node@v4
        with:
          node-version: '20'
          cache: 'npm'

      - name: Install Dependencies
        if: steps.changed-files.outputs.any_changed == 'true'
        run: npm ci

      - name: Run ESLint with Reviewdog
        if: steps.changed-files.outputs.any_changed == 'true'
        uses: reviewdog/action-eslint@v1
        with:
          github_token: ${{ secrets.GITHUB_TOKEN }}
          reporter: github-pr-review 
          eslint_flags: "${{ steps.changed-files.outputs.all_changed_files }}"
          filter_mode: diff_context 
          fail_on_error: false