name: discourse-release
description: >-
  Announce a published Gitea release on the Coffey Labs community forum, in the
  repo's Announcements category (release-map.json). Safe to re-run: a release
  is announced at most once.
inputs:
  api-key:
    description: release-bot's forum API key (scope topics:write only)
    required: true
  discord-webhook:
    description: optional Discord webhook URL; when set, the announcement is also posted there
    required: false
    default: ""
  tag:
    description: >-
      announce the release with this tag instead of the triggering release
      event. Needed in a workflow that creates its release with the job's own
      token: Gitea does not start workflows for events the Actions bot causes,
      so `on: release` never fires for those releases.
    required: false
    default: ""
  forum:
    description: forum base URL
    required: false
    default: https://community.coffeylabs.org
runs:
  using: composite
  steps:
    - shell: sh
      env:
        API_KEY: ${{ inputs.api-key }}
        DISCORD_WEBHOOK: ${{ inputs.discord-webhook }}
        FORUM: ${{ inputs.forum }}
        REPO: ${{ github.repository }}
        EVENT_PATH: ${{ github.event_path }}
        TAG: ${{ inputs.tag }}
        GITEA_TOKEN: ${{ github.token }}
        ACTION_PATH: ${{ github.action_path }}
        MAP: ${{ github.action_path }}/release-map.json
      run: |
        set -eu
        # The job image may be bare; the script needs bash, curl and jq.
        if ! command -v curl >/dev/null || ! command -v jq >/dev/null || ! command -v bash >/dev/null; then
          if command -v apk >/dev/null; then apk add --no-cache -q bash curl jq ca-certificates >/dev/null
          else apt-get update -qq >/dev/null && apt-get install -y -qq --no-install-recommends bash curl jq ca-certificates >/dev/null; fi
        fi
        exec bash "$ACTION_PATH/announce.sh"