pull-request.yml

name: Pull Request Preview

on:
  pull_request_target:

jobs:
  prepare:
    runs-on: ubuntu-latest
    permissions: {} # disable all permission
    steps:
      - name: Checkout code
        uses: actions/checkout@v4
        with:
          ref: ${{ github.event.pull_request.head.sha }}

      - name: Set up Node.js 18
        uses: actions/setup-node@v4
        with:
          node-version: 18

      - name: Install dependencies
        run: |
          yarn install --frozen-lockfile

      - name: Ignore OpenAPI
        run: |
          ./scripts/ignore-openapi

      - name: Build
        env:
          NODE_OPTIONS: "--max_old_space_size=7168"
        run: |
          yarn gen-api-docs
          yarn build

      - name: Upload build to artifacts
        uses: actions/upload-artifact@v4
        with:
          name: build
          path: ./build

  deploy:
    runs-on: ubuntu-latest
    permissions:
      pull-requests: write
    needs: prepare
    steps:
      - name: Set up Node.js 18
        uses: actions/setup-node@v4
        with:
          node-version: 18

      - name: Install dependencies
        run: |
          npm install netlify-cli -g yarn

      - name: Download build from artifacts
        uses: actions/download-artifact@v4
        with:
          name: build
          path: ./build

      - name: Deploy to Netlify
        run: >
          netlify deploy
          --site ${{ secrets.NETLIFY_SITE_ID }}
          --auth ${{ secrets.NETLIFY_AUTH_TOKEN }}
          --message "Deploy from GitHub Action (pull-request: ${{ github.event.number }}, ${{ github.event.pull_request.head.sha }})"
          --dir ./build
          --json > deploy_output.json
        
      - name: Get Netlify Deploy URL
        id: netlify
        run: |
          DEPLOY_URL=$(jq -r '.deploy_url' deploy_output.json)
          echo "deploy_url=$DEPLOY_URL" >> $GITHUB_OUTPUT
      
      - name: Add or Update PR comment
        uses: actions/github-script@v7
        with:
          github-token: ${{ secrets.GITHUB_TOKEN }}
          script: |
            const sha = `${{ github.event.pull_request.head.sha }}`
            const pr_number = `${{ github.event.number }}`;
            const deployUrl = `${{ steps.netlify.outputs.deploy_url }}`;
            const commentIdentifier = "<!-- deploy-comment -->";
            const body = `${commentIdentifier}\n
            |  Name | Link |
            |:-:|------------------------|
            |<span aria-hidden="true">🔨</span> Latest commit | ${sha} |
            |<span aria-hidden="true">😎</span> Deploy Preview | ${deployUrl} |
            `

            const { data: comments } = await github.rest.issues.listComments({
              owner: context.repo.owner,
              repo: context.repo.repo,
              issue_number: pr_number,
            });

            const existingComment = comments.find(comment => comment.body.includes(commentIdentifier));

            if (existingComment) {
              await github.rest.issues.updateComment({
                owner: context.repo.owner,
                repo: context.repo.repo,
                comment_id: existingComment.id,
                body: body,
              });
            } else {
              await github.rest.issues.createComment({
                owner: context.repo.owner,
                repo: context.repo.repo,
                issue_number: pr_number,
                body: body,
              });
            }