name: Send Email using SSH

on:
  workflow_call:
    inputs:
      message:
        description: 'Message to send'
        required: true
        type: string
    secrets:
      email:
        required: true
      private_key:
        required: true
      user:
        required: true
      host:
        required: true

jobs:
  send_email:
    runs-on: ubuntu-latest
    steps:
    - name: install ssh keys
      run: |
        install -m 600 -D /dev/null ~/.ssh/id_rsa
        echo "${{ secrets.private_key }}" > ~/.ssh/id_rsa
        ssh-keyscan -H ${{ secrets.host }} > ~/.ssh/known_hosts
    - name: send email via ssh
      run: |
        echo -e '${{ inputs.message }}' | ssh  ${{ secrets.user }}@${{ secrets.host }} "/sbin/sendmail -t ${{ secrets.email }}"