name: Release

on:
  push:
    tags:
      - 'v*'
  workflow_dispatch:

concurrency:
  group: release-${{ github.ref }}
  cancel-in-progress: true

permissions:
  contents: write
  packages: write

env:
  FORCE_JAVASCRIPT_ACTIONS_TO_NODE24: "true"

jobs:
  release-meta:
    runs-on: ubuntu-latest
    timeout-minutes: 10
    outputs:
      version: ${{ steps.version.outputs.version }}
      prerelease: ${{ steps.channel.outputs.prerelease }}
      make_latest: ${{ steps.channel.outputs.make_latest }}
      docker_tags: ${{ steps.docker.outputs.tags }}
    steps:
      - name: Checkout repository
        uses: actions/checkout@v6
        with:
          fetch-depth: 1

      - name: Read VERSION
        id: version
        run: echo "version=$(tr -d '\n\r' < VERSION)" >> "$GITHUB_OUTPUT"

      - name: Validate tag matches VERSION
        if: startsWith(github.ref, 'refs/tags/')
        shell: bash
        run: |
          set -euo pipefail
          expected="v${{ steps.version.outputs.version }}"
          if [[ "${GITHUB_REF_NAME}" != "${expected}" ]]; then
            echo "Tag ${GITHUB_REF_NAME} does not match VERSION ${expected}" >&2
            exit 1
          fi

      - name: Determine release channel
        id: channel
        shell: bash
        run: |
          set -euo pipefail
          if [[ "${GITHUB_REF_NAME}" == *-rc.* ||
                "${GITHUB_REF_NAME}" == *-beta.* ||
                "${GITHUB_REF_NAME}" == *-alpha.* ]]; then
            echo "prerelease=true"  >> "$GITHUB_OUTPUT"
            echo "make_latest=false" >> "$GITHUB_OUTPUT"
          else
            echo "prerelease=false" >> "$GITHUB_OUTPUT"
            echo "make_latest=true"  >> "$GITHUB_OUTPUT"
          fi

      - name: Compute Docker tags
        id: docker
        shell: bash
        run: |
          set -euo pipefail
          VERSION="${{ steps.version.outputs.version }}"
          TAGS="ghcr.io/bybrooklyn/alchemist:${VERSION}"
          if [[ "${{ steps.channel.outputs.prerelease }}" == "false" ]]; then
            TAGS="${TAGS}"$'\n'"ghcr.io/bybrooklyn/alchemist:latest"
          fi
          {
            echo "tags<<EOF"
            echo "${TAGS}"
            echo "EOF"
          } >> "$GITHUB_OUTPUT"

  build:
    needs: [release-meta]
    uses: ./.github/workflows/build.yml
    with:
      version_suffix: ""
      push_docker: ${{ startsWith(github.ref, 'refs/tags/') }}
      docker_tags: ${{ needs.release-meta.outputs.docker_tags }}
      publish_release: ${{ startsWith(github.ref, 'refs/tags/') }}
      release_tag: ${{ github.ref_name }}
      release_name: >-
        Alchemist ${{ needs.release-meta.outputs.version }}
      prerelease: ${{ needs.release-meta.outputs.prerelease == 'true' }}
      make_latest: ${{ needs.release-meta.outputs.make_latest == 'true' }}