slack.yml

name: Slack
permissions: {}
on:
  workflow_call:
    inputs:
      org:
        required: true
        description: The organization to check seats.
        type: string
      slack-channel-id:
        required: true
        description: The Slack channel id, channel name, or user id to post message.
        type: string
      seats-remaining:
        required: false
        default: 10
        description: The number of seats that triggers the message
        type: number
    outputs:
      percentage:
        value: ${{ jobs.seats.outputs.percentage }}
        description: The percentage of seats used
      remaining:
        value: ${{ jobs.seats.outputs.remaining }}
        description: The number of seats remaining
    secrets:
      github-token:
        required: false
        description: GitHub PAT
      slack-bot-token:
        required: false
        description: Slack bot token
jobs:
  seats:
    name: Get Seats Remaining
    runs-on: ubuntu-latest
    steps:
      - name: Get Seats Remaining
        uses: austenstone/seat-count-action@main
        id: seats
        with:
          org: ${{ inputs.org }}
          github-token: ${{ secrets.github-token }}
      - name: Print
        run: |
          echo "${{ steps.seats.outputs.percentage }}% of seats used."
          echo "${{ steps.seats.outputs.remaining }} seats remaining"
      - name: Post to a Slack channel
        if: steps.seats.outputs.remaining <= inputs.seats-remaining
        uses: slackapi/slack-github-action@v1.21.0
        with:
          channel-id: ${{ inputs.slack-channel-id }}
          slack-message: "Only ${{ steps.seats.outputs.remaining }} GitHub seats remaining!"
        env:
          SLACK_BOT_TOKEN: ${{ secrets.SLACK_BOT_TOKEN }}