name: Format Command

on:
  issue_comment:
    types: [created]

jobs:
  format:
    name: Format
    if: >-
      github.event.issue.pull_request &&
      github.event.comment.body == '/format' &&
      (
        github.event.comment.author_association == 'MEMBER' ||
        github.event.comment.author_association == 'OWNER' ||
        github.event.comment.author_association == 'COLLABORATOR'
      )
    runs-on: ubuntu-latest
    permissions:
      contents: write
      pull-requests: write
    steps:
      - name: Generate token
        id: app-token
        uses: actions/create-github-app-token@df432ceedc7162793a195dd1713ff69aefc7379e # v2.0.6
        with:
          app-id: ${{ secrets.APP_ID }}
          private-key: ${{ secrets.APP_PRIVATE_KEY }}

      - name: Get PR branch
        id: pr
        uses: actions/github-script@60a0d83039c74a4aee543508d2ffcb1c3799cdea # v7.0.1
        with:
          github-token: ${{ steps.app-token.outputs.token }}
          script: |
            const pr = await github.rest.pulls.get({
              owner: context.repo.owner,
              repo: context.repo.repo,
              pull_number: context.issue.number,
            });
            core.setOutput('ref', pr.data.head.ref);
            core.setOutput('sha', pr.data.head.sha);

      - name: React to comment
        uses: actions/github-script@60a0d83039c74a4aee543508d2ffcb1c3799cdea # v7.0.1
        with:
          github-token: ${{ steps.app-token.outputs.token }}
          script: |
            await github.rest.reactions.createForIssueComment({
              owner: context.repo.owner,
              repo: context.repo.repo,
              comment_id: context.payload.comment.id,
              content: 'eyes',
            });

      - name: Checkout
        uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd # v6.0.2
        with:
          ref: ${{ steps.pr.outputs.ref }}
          token: ${{ steps.app-token.outputs.token }}

      - name: Setup pnpm
        uses: pnpm/action-setup@fc06bc1257f339d1d5d8b3a19a8cae5388b55320 # v4.4.0

      - name: Setup Node
        uses: actions/setup-node@53b83947a5a98c8d113130e565377fae1a50d02f # v6.3.0
        with:
          node-version: 22
          cache: pnpm

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

      - name: Run formatter
        run: pnpm format

      - name: Commit and push
        id: commit
        run: |
          git config user.name "emdashbot[bot]"
          git config user.email "emdashbot[bot]@users.noreply.github.com"
          git add -A
          if git diff --staged --quiet; then
            echo "changed=false" >> "$GITHUB_OUTPUT"
          else
            git commit -m "style: format"
            git push
            echo "changed=true" >> "$GITHUB_OUTPUT"
          fi

      - name: React to comment
        uses: actions/github-script@60a0d83039c74a4aee543508d2ffcb1c3799cdea # v7.0.1
        with:
          github-token: ${{ steps.app-token.outputs.token }}
          script: |
            const changed = '${{ steps.commit.outputs.changed }}' === 'true';
            await github.rest.reactions.createForIssueComment({
              owner: context.repo.owner,
              repo: context.repo.repo,
              comment_id: context.payload.comment.id,
              content: changed ? 'rocket' : '+1',
            });