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name: Preview

on:
  pull_request:
    types: [opened, reopened, synchronize, closed]

permissions: {}

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

env:
  FLY_API_TOKEN: ${{ secrets.FLY_API_TOKEN }}
  FLY_REGION: sjc
  FLY_ORG: personal

jobs:
  preview:
    name: Preview
    runs-on: ubuntu-latest
    permissions:
      contents: read # checkout
    environment:
      name: pr-${{ github.event.number }}
      url: ${{ steps.deploy.outputs.url }}
    steps:
      - uses: actions/checkout@3d3c42e5aac5ba805825da76410c181273ba90b1 # v7
        with:
          persist-credentials: false

      - uses: superfly/flyctl-actions/setup-flyctl@ed8efb33836e8b2096c7fd3ba1c8afe303ebbff1 # 1.6

      # Names the build after the PR and the commit it shows.
      - name: Version
        id: version
        env:
          PR: ${{ github.event.number }}
          SHA: ${{ github.event.pull_request.head.sha }}
        run: echo "version=pr-${PR}-${SHA::7}" >> "$GITHUB_OUTPUT"

      # Creates the app on open, redeploys it on each push, and destroys
      # it when the PR closes.
      - name: Deploy preview
        id: deploy
        uses: superfly/fly-pr-review-apps@f5d85309215d5700e7a42faf9aa5e9a718aaef7c # 1.5.0
        with:
          config: fly.toml
          memory: 256
          build_args: DOCKET_VERSION=${{ steps.version.outputs.version }}