name: Rollback (Beta)

on:
  workflow_dispatch:
    inputs:
      version:
        description: "Beta version to roll back to (example: 1.0.0-beta.2)"
        required: true
        type: string

permissions:
  contents: read

concurrency:
  group: rollback-beta-${{ github.event.inputs.version }}
  cancel-in-progress: false

jobs:
  rollback:
    name: Roll back npm beta dist-tag
    runs-on: ubuntu-latest
    steps:
      - name: Validate target version
        id: target
        shell: bash
        env:
          RAW_VERSION: ${{ inputs.version }}
        run: |
          set -euo pipefail

          VERSION="${RAW_VERSION#v}"

          if ! [[ "$VERSION" =~ ^[0-9]+\.[0-9]+\.[0-9]+-beta\.[0-9]+$ ]]; then
            echo "Version must be in format X.Y.Z-beta.N (e.g. 1.0.0-beta.2)"
            exit 1
          fi

          echo "version=$VERSION" >> "$GITHUB_OUTPUT"

      - name: Setup Node.js
        uses: actions/setup-node@53b83947a5a98c8d113130e565377fae1a50d02f # v6.3.0
        with:
          node-version: 24
          registry-url: https://registry.npmjs.org

      - name: Verify npm package version exists
        run: npm view "@keygraph/shannon@${{ steps.target.outputs.version }}" version

      - name: Show current npm dist-tags
        env:
          NODE_AUTH_TOKEN: ${{ secrets.NPM_TOKEN }}
        run: npm dist-tag ls @keygraph/shannon

      - name: Move npm beta tag
        env:
          NODE_AUTH_TOKEN: ${{ secrets.NPM_TOKEN }}
        run: npm dist-tag add "@keygraph/shannon@${{ steps.target.outputs.version }}" beta

      - name: Show final npm dist-tags
        env:
          NODE_AUTH_TOKEN: ${{ secrets.NPM_TOKEN }}
        run: npm dist-tag ls @keygraph/shannon

      - name: Write summary
        run: |
          {
            echo "## Rollback beta"
            echo ""
            echo "- Target version: \`${{ steps.target.outputs.version }}\`"
            echo "- npm package: \`@keygraph/shannon\` (beta tag moved)"
          } >> "$GITHUB_STEP_SUMMARY"