name: Output

on:
  push:
    branches: [main]
    paths-ignore:
      - '**.md'
      - '**.d.ts'
      - 'examples/**'
      - 'private/**'
      - 'website/**'
      - '.github/**'
      - '!.github/workflows/e2e.yml'
  pull_request:
    types: [opened, synchronize, reopened]
    paths-ignore:
      - '**.md'
      - '**.d.ts'
      - 'examples/**'
      - 'private/**'
      - 'website/**'
      - '.github/**'

permissions:
  pull-requests: write
env:
  YARN_ENABLE_GLOBAL_CACHE: false

jobs:
  compare_diff:
    name: Diff lib folders
    runs-on: ubuntu-latest
    env:
      DIFF_BUILDER: true
    outputs:
      diff: ${{ steps.diff.outputs.OUTPUT_DIFF }}
    steps:
      - name: Checkout sources
        uses: actions/checkout@v5
        with:
          fetch-depth: 2
          ref: ${{ github.event.pull_request && format('refs/pull/{0}/merge', github.event.pull_request.number) || github.sha }}
      - run: git reset HEAD^ --hard
      - name: Get yarn cache directory path
        id: yarn-cache-dir-path
        run:
          echo "dir=$(corepack yarn config get cacheFolder)" >> $GITHUB_OUTPUT

      - uses: actions/cache@v4
        id: yarn-cache # use this to check for `cache-hit` (`steps.yarn-cache.outputs.cache-hit != 'true'`)
        with:
          path: ${{ steps.yarn-cache-dir-path.outputs.dir }}
          key: ${{ runner.os }}-yarn-${{ hashFiles('**/yarn.lock') }}
          restore-keys: |
            ${{ runner.os }}-yarn-
      - name: Install Node.js
        uses: actions/setup-node@v4
        with:
          node-version: lts/*
      - run: corepack yarn install
        env:
          # https://docs.cypress.io/guides/references/advanced-installation#Skipping-installation
          CYPRESS_INSTALL_BINARY: 0
      - run: corepack yarn build
      - name: Store output file
        run: tar cf /tmp/previousVersion.tar packages/@uppy/*/lib
      - name: Fetch source from the PR
        run: |
          git checkout FETCH_HEAD -- packages
      - run: corepack yarn install --no-immutable
        env:
          # https://docs.cypress.io/guides/references/advanced-installation#Skipping-installation
          CYPRESS_INSTALL_BINARY: 0
      - run: corepack yarn build
      - name: Store output file
        run: tar cf /tmp/newVersion.tar packages/@uppy/*/lib
      - name: Setup git
        run: |
          git config --global user.email "actions@github.com"
          git config --global user.name "GitHub Actions"
          git init /tmp/uppy
          echo '*.map' > /tmp/uppy/.gitignore
      - name: Install dformat
        run: |
          curl -fsSL https://dprint.dev/install.sh | sh
          cd /tmp/uppy && echo '{"plugins":[]}' > dprint.json && "$HOME/.dprint/bin/dprint" config add typescript
      - name: Extract previous version
        run: cd /tmp/uppy && tar xf /tmp/previousVersion.tar
      - name: Format previous output code
        run: cd /tmp/uppy && "$HOME/.dprint/bin/dprint" fmt **/*.js
      - name: Commit previous version
        run: cd /tmp/uppy && git add -A . && git commit -m 'previous version'
      - name: Extract new version
        run: cd /tmp/uppy && tar xf /tmp/newVersion.tar
      - name: Format new output code
        run: cd /tmp/uppy && "$HOME/.dprint/bin/dprint" fmt **/*.js
      - name: Build diff
        id: diff
        run: |
          EOF=$(dd if=/dev/urandom bs=15 count=1 status=none | base64)
          echo "OUTPUT_DIFF<<$EOF" >> "$GITHUB_OUTPUT"
          cd /tmp/uppy && git --no-pager diff >> "$GITHUB_OUTPUT"
          echo "$EOF" >> "$GITHUB_OUTPUT"
      - name: Add/update comment
        if: github.event.pull_request
        uses: marocchino/sticky-pull-request-comment@v2
        with:
          message: |
            <details><summary>Diff output files</summary>

            ```diff
            ${{ steps.diff.outputs.OUTPUT_DIFF || 'No diff' }}
            ```

            </details>