# Notify the docker repo to build and test a new image after relay CI passes.
#
# Sends a repository_dispatch event to chatmail/docker with the relay ref
# and short SHA, which triggers docker-ci.yaml to build, push to GHCR,
# and run integration tests via cmlxc.

name: Trigger Docker build

on:
  push:
    branches: [main]
  workflow_dispatch:

permissions: {}

jobs:
  dispatch:
    name: Dispatch build to chatmail/docker
    runs-on: ubuntu-latest
    if: github.repository == 'chatmail/relay'
    steps:
      - name: Compute short SHA
        id: sha
        run: echo "short=$(echo '${{ github.sha }}' | cut -c1-7)" >> "$GITHUB_OUTPUT"

      - name: Send repository_dispatch
        uses: peter-evans/repository-dispatch@ff45666b9427631e3450c54a1bcbee4d9ff4d7c0 # v3
        with:
          token: ${{ secrets.CHATMAIL_DOCKER_DISPATCH_TOKEN }}
          repository: chatmail/docker
          event-type: relay-updated
          client-payload: >-
            {
              "relay_ref": "${{ github.ref_name }}",
              "relay_sha": "${{ github.sha }}",
              "relay_sha_short": "${{ steps.sha.outputs.short }}"
            }