octomation/go-service

name: Define notification message
description: Identify an appropriate notification message.
branding:
  icon: 'message-square'
  color: 'green'

inputs:
  emoji:
    description: Prefix for the title.
    default: 🤖

  channel:
    description: Notification channel.
    required: true

  success:
    description: Is the result successful?
    required: true
    default: 'true'

runs:
  using: composite
  steps:
    - name: Define notification message
      id: message
      run: |
        if [ '${{ github.event.head_commit.message != null }}' == 'true' ]
        then
          (cat <<-message
        txt=${{ github.event.head_commit.message }}
        message
        ) | head -1 >> $GITHUB_OUTPUT

        elif [ '${{ github.event.inputs.reason != null }}' == 'true' ]
        then
          (cat <<-message
        txt=${{ github.event.inputs.reason }}
        message
        ) | head -1 >> $GITHUB_OUTPUT

        elif [ '${{ github.event.workflow_run != null }}' == 'true' ]
        then
          (cat <<-message
        txt=triggered by the ${{ github.event.workflow_run.name }} action
        message
        ) | head -1 >> $GITHUB_OUTPUT

        elif [ '${{ github.event.schedule != null }}' == 'true' ]
        then
          echo txt='regular healthcheck' >> $GITHUB_OUTPUT
        else
          echo Cannot define notification message && exit 1
        fi
      shell: bash

    - name: Send Slack notification
      uses: rtCamp/action-slack-notify@v2.2.1
      if: ${{ inputs.channel != '' }}
      env:
        SLACK_COLOR: ${{ inputs.success == 'true' && 'success' || 'failure' }}
        SLACK_FOOTER: made with ❤️ for everyone by <https://www.octolab.org/|OctoLab>
        SLACK_ICON: https://cdn.octolab.org/geek/octolab.png
        SLACK_MESSAGE: ${{ steps.message.outputs.txt }}
        SLACK_TITLE: '${{ inputs.emoji }} ${{ github.repository }}: ${{ github.workflow }}'
        SLACK_USERNAME: Notifier
        SLACK_WEBHOOK: ${{ inputs.channel }}