name: Preview Docs

on:
  push:
    branches:
      - main
      - dev
  pull_request_target:

concurrency:
  group: ${{ github.workflow }}-${{ github.ref }}
  cancel-in-progress: ${{ github.ref != 'refs/heads/main' && github.ref != 'refs/heads/dev' }}

jobs:
  run:
    runs-on: ubuntu-latest

    permissions: write-all

    steps:
      - uses: actions/checkout@v3

      - name: Setup Node.js v20
        uses: actions/setup-node@v3
        with:
          node-version: 20

      - name: Setup pnpm
        uses: pnpm/action-setup@v3
        with:
            version: 9.1.2

      - name: Install dependencies
        run: pnpm install --frozen-lockfile

      - name: Create .env.production.local file for apps/backend
        run: cp apps/backend/.env.development apps/backend/.env.production.local

      - name: Create .env.production.local file for apps/dashboard
        run: cp apps/dashboard/.env.development apps/dashboard/.env.production.local
      
      - name: Create .env.production.local file for apps/e2e
        run: cp apps/e2e/.env.development apps/e2e/.env.production.local

      - name: Create .env.production.local file for examples/cjs-test
        run: cp examples/cjs-test/.env.development examples/cjs-test/.env.production.local
      
      - name: Create .env.production.local file for examples/demo
        run: cp examples/demo/.env.development examples/demo/.env.production.local

      - name: Create .env.production.local file for examples/docs-examples
        run: cp examples/docs-examples/.env.development examples/docs-examples/.env.production.local

      - name: Create .env.production.local file for examples/e-commerce
        run: cp examples/e-commerce/.env.development examples/e-commerce/.env.production.local

      - name: Create .env.production.local file for examples/middleware
        run: cp examples/middleware/.env.development examples/middleware/.env.production.local

      - name: Create .env.production.local file for examples/partial-prerendering
        run: cp examples/partial-prerendering/.env.development examples/partial-prerendering/.env.production.local

      - name: Create .env.production.local file for examples/supabase
        run: cp examples/supabase/.env.development examples/supabase/.env.production.local

      - name: Build
        run: pnpm build

      - name: Check API is valid
        run: pnpm run fern check

      - name: Generate preview URL
        id: generate-docs
        env:
          FERN_TOKEN: ${{ secrets.FERN_TOKEN }}
        run: |
          OUTPUT=$(pnpm run fern generate --docs --preview 2>&1) || true
          echo "$OUTPUT"
          URL=$(echo "$OUTPUT" | grep -oP 'Published docs to \K.*(?= \()')
          echo "Preview URL: $URL"
      #     echo "🌿 Preview your docs: $URL" > docs_preview_url.untracked.txt

      # - name: Comment URL in PR
      #   uses: thollander/actions-comment-pull-request@v2.4.3
      #   with:
      #     filePath: docs_preview_url.untracked.txt