name: Deploy Ngrok VPS

on:
  workflow_dispatch:
    inputs:
      NGROK_API: 
        required: true 
      SSH_USERNAME: 
        required: true 
      SSH_PASSWORD: 
        required: true 

jobs:
  deploy:
    runs-on: ubuntu-latest

    steps:
    - name: Checkout repository
      uses: actions/checkout@v2

    - name: Install Dependencies
      run: |
        sudo apt-get update
        sudo apt-get install -y curl jq openssh-server

    - name: Install Ngrok
      run: |
        curl -s https://ngrok-agent.s3.amazonaws.com/ngrok.asc | sudo tee /etc/apt/trusted.gpg.d/ngrok.asc > /dev/null
        echo "deb https://ngrok-agent.s3.amazonaws.com buster main" | sudo tee /etc/apt/sources.list.d/ngrok.list
        sudo apt-get update && sudo apt-get install -y ngrok

    - name: Start SSH Service
      run: sudo service ssh start

    - name: Add SSH User
      env:
        SSH_USERNAME: ${{ github.event.inputs.SSH_USERNAME }}
        SSH_PASSWORD: ${{ github.event.inputs.SSH_PASSWORD }}
      run: |
        sudo adduser --disabled-password --gecos "" $SSH_USERNAME --force-badname
        echo "$SSH_USERNAME:$SSH_PASSWORD" | sudo chpasswd
        sudo usermod -aG sudo $SSH_USERNAME

    - name: Start Ngrok
      env:
        NGROK_AUTHTOKEN: ${{ github.event.inputs.NGROK_API }}
      run: |
        ngrok authtoken $NGROK_AUTHTOKEN
        nohup bash -c 'while true; do ngrok tcp 22; sleep 3600; done' &

    - name: Display Ngrok Tunnel Info
      run: |
        sleep 10
        curl --silent --show-error http://127.0.0.1:4040/api/tunnels > tunnels.json
        export NGROK_URL=$(jq -r '.tunnels[] | select(.proto=="tcp") | .public_url' tunnels.json)
        NGROK_HOST=$(echo $NGROK_URL | cut -d':' -f2 | cut -c 3-)
        NGROK_PORT=$(echo $NGROK_URL | cut -d':' -f3)
        echo "SSH login information:"
        echo "Username: ${{ github.event.inputs.SSH_USERNAME }}"
        echo "Password: ${{ github.event.inputs.SSH_PASSWORD }}"
        echo "Hostname: $NGROK_HOST"
        echo "Port: $NGROK_PORT"

    - name: Display Connection Instructions
      run: |
        echo "Use the above information to connect using PuTTY or any SSH client."
        sleep infinity