name: Docker Image Refresh

on:
  workflow_dispatch:
    inputs:
      channel:
        description: Release channel to rebuild
        required: false
        default: both
        type: choice
        options:
          - stable
          - extended-stable
          - both
      dry_run:
        description: Resolve and summarize without publishing
        required: false
        default: false
        type: boolean
  schedule:
    - cron: "17 3 * * 1"

permissions:
  contents: read

env:
  FORCE_JAVASCRIPT_ACTIONS_TO_NODE24: "true"

jobs:
  plan:
    runs-on: ubuntu-24.04
    permissions:
      contents: read
    outputs:
      dry_run: ${{ steps.plan.outputs.dry_run }}
      image_tag_suffix: ${{ steps.plan.outputs.image_tag_suffix }}
      matrix: ${{ steps.plan.outputs.matrix }}
    steps:
      - name: Require a main-branch run
        env:
          WORKFLOW_REF: ${{ github.ref }}
        run: |
          set -euo pipefail
          if [[ "${WORKFLOW_REF}" != "refs/heads/main" ]]; then
            echo "::error::Docker image refresh must run from main; got ${WORKFLOW_REF}."
            exit 1
          fi

      - name: Checkout trusted refresh tooling
        uses: actions/checkout@df4cb1c069e1874edd31b4311f1884172cec0e10 # v6.0.3
        with:
          ref: ${{ github.sha }}
          fetch-depth: 0
          persist-credentials: false

      - name: Resolve refresh plan
        id: plan
        shell: bash
        env:
          CHANNEL: ${{ github.event_name == 'schedule' && 'both' || inputs.channel }}
          DRY_RUN: ${{ github.event_name == 'schedule' && 'false' || inputs.dry_run }}
        run: |
          set -euo pipefail
          current="$(git tag --list 'v*' | node scripts/lib/docker-release-policy.mjs --current)"
          stable_tag="$(jq -er '.stable.tag' <<< "${current}")"
          extended_stable_tag="$(jq -er '.extendedStable.tag' <<< "${current}")"
          stable_sha="$(git rev-parse "refs/tags/${stable_tag}^{commit}")"
          extended_stable_sha="$(git rev-parse "refs/tags/${extended_stable_tag}^{commit}")"
          suffix="-r$(date -u +%Y%m%d)"

          stable_entry="$(
            jq -cn \
              --arg channel stable \
              --arg tag "${stable_tag}" \
              --arg release_sha "${stable_sha}" \
              '{channel: $channel, tag: $tag, release_sha: $release_sha}'
          )"
          extended_stable_entry="$(
            jq -cn \
              --arg channel extended-stable \
              --arg tag "${extended_stable_tag}" \
              --arg release_sha "${extended_stable_sha}" \
              '{channel: $channel, tag: $tag, release_sha: $release_sha}'
          )"
          case "${CHANNEL}" in
            stable)
              matrix="$(jq -cn --argjson stable "${stable_entry}" '[$stable]')"
              ;;
            extended-stable)
              matrix="$(jq -cn --argjson extended "${extended_stable_entry}" '[$extended]')"
              ;;
            both)
              matrix="$(
                jq -cn \
                  --argjson stable "${stable_entry}" \
                  --argjson extended "${extended_stable_entry}" \
                  '[$stable, $extended]'
              )"
              ;;
            *)
              echo "::error::Unsupported Docker refresh channel: ${CHANNEL}"
              exit 1
              ;;
          esac

          {
            echo "dry_run=${DRY_RUN}"
            echo "image_tag_suffix=${suffix}"
            echo "matrix=${matrix}"
          } >> "${GITHUB_OUTPUT}"
          {
            echo "## Docker image refresh plan"
            echo "- Stable: ${stable_tag} (${stable_sha})"
            echo "- Extended stable: ${extended_stable_tag} (${extended_stable_sha})"
            echo "- Image tag suffix: ${suffix}"
            echo "- Selected channel: ${CHANNEL}"
            echo "- Dry run: ${DRY_RUN}"
          } >> "${GITHUB_STEP_SUMMARY}"

  publish:
    name: Refresh ${{ matrix.channel }} Docker images
    needs: plan
    if: needs.plan.outputs.dry_run != 'true'
    strategy:
      fail-fast: false
      matrix:
        include: ${{ fromJSON(needs.plan.outputs.matrix) }}
    uses: ./.github/workflows/docker-release.yml
    with:
      tag: ${{ matrix.tag }}
      release_sha: ${{ matrix.release_sha }}
      image_tag_suffix: ${{ needs.plan.outputs.image_tag_suffix }}
    secrets:
      DOCKERHUB_USERNAME: ${{ secrets.DOCKERHUB_USERNAME }}
      DOCKERHUB_TOKEN: ${{ secrets.DOCKERHUB_TOKEN }}
    permissions:
      contents: read
      packages: write