name: Build and Release

on:
  push:
    branches: [ main ]
  pull_request:
    branches: [ main ]

jobs:
  build:
    name: Cross-compile for Raspberry Pi
    runs-on: ubuntu-latest

    steps:
    - name: Checkout code
      uses: actions/checkout@v3

    - name: Set up Go
      uses: actions/setup-go@v4
      with:
        go-version: '1.20'

    - name: Build for ARM (Pi Zero, Pi 1 - ARMv6)
      run: |
        GOOS=linux GOARCH=arm GOARM=6 go build -ldflags="-s -w" -o wol-server-arm6

    - name: Create systemd service file
      run: |
        cat > wol-server.service << 'EOL'
        [Unit]
        Description=WOL Server Go Application
        After=network.target

        [Service]
        User=pi
        WorkingDirectory=/home/pi/wol-server
        ExecStart=/home/pi/wol-server/wol-server
        Restart=always

        [Install]
        WantedBy=multi-user.target
        EOL

    - name: Create deployment script
      run: |
        cat > install.sh << 'EOL'
        #!/bin/bash
        set -e

        # Installation directory
        INSTALL_DIR=~/wol-server

        echo "Creating installation directory..."
        mkdir -p $INSTALL_DIR
        mkdir -p $INSTALL_DIR/templates

        echo "Installing application..."
        cp wol-server-arm6 $INSTALL_DIR/wol-server
        chmod +x $INSTALL_DIR/wol-server

        echo "Installing template files..."
        cp -r templates/* $INSTALL_DIR/templates/

        echo "Installing system service..."
        sudo cp wol-server.service /etc/systemd/system/
        sudo systemctl daemon-reload
        sudo systemctl enable wol-server

        # Install required dependencies
        echo "Installing dependencies..."
        sudo apt-get update -qq
        sudo apt-get install -y wakeonlan sshpass

        # Start the service
        echo "Starting service..."
        sudo systemctl restart wol-server

        echo "==========================================="
        echo "Installation complete!"
        echo "The WOL server is now running at http://$(hostname -I | awk '{print $1}'):8080"
        echo "==========================================="
        EOL

        chmod +x install.sh

    - name: Create README with installation instructions
      run: |
        cat > INSTALL.md << 'EOL'
        # WOL Server Installation Guide

        This guide will help you install the Wake-on-LAN server on your Raspberry Pi.

        ## Prerequisites

        - Raspberry Pi running Raspberry Pi OS (Raspbian)
        - SSH access to your Pi
        - SCP or SFTP capability to transfer files

        ## Installation Steps

        ### 1. Transfer Files to Raspberry Pi

        **Option 1: Using SCP from your computer**

        ```bash
        # Replace with your Pi's IP address
        PI_IP=192.168.1.100

        # Transfer the installation package
        scp wol-server.tar.gz pi@$PI_IP:~/
        ```

        **Option 2: Using SFTP client**

        Use a tool like FileZilla, WinSCP, or Cyberduck to transfer the `wol-server.tar.gz` file to your Raspberry Pi.

        ### 2. SSH into your Raspberry Pi

        ```bash
        ssh pi@192.168.1.100
        ```

        ### 3. Extract and Install

        ```bash
        # Navigate to home directory
        cd ~

        # Extract the archive
        tar -xzf wol-server.tar.gz

        # Run the installation script
        ./install.sh
        ```

        ### 4. Test the Installation

        Open a web browser and navigate to:
        ```
        http://[your-pi-ip]:8080
        ```

        ## Troubleshooting

        If the service fails to start, check the logs:
        ```bash
        sudo systemctl status wol-server
        ```

        If template errors occur, ensure the template files were copied correctly:
        ```bash
        ls -la ~/wol-server/templates/
        ```

        ## Manual Installation (if needed)

        If you encounter issues with the automated install:

        ```bash
        # Create directories
        mkdir -p ~/wol-server/templates

        # Copy files manually
        cp wol-server-arm6 ~/wol-server/wol-server
        chmod +x ~/wol-server/wol-server
        cp templates/* ~/wol-server/templates/
        sudo cp wol-server.service /etc/systemd/system/

        # Install dependencies
        sudo apt-get update
        sudo apt-get install -y wakeonlan sshpass

        # Enable and start service
        sudo systemctl daemon-reload
        sudo systemctl enable wol-server
        sudo systemctl start wol-server
        ```
        EOL

    - name: Create all-in-one package
      run: |
        # Create a single package with everything needed
        mkdir -p package
        cp wol-server-arm6 package/
        cp wol-server.service package/
        cp install.sh package/
        cp -r templates package/
        cp INSTALL.md package/

        # Create the tarball
        tar -czf wol-server.tar.gz -C package .

    - name: Create Release
      id: create_release
      uses: softprops/action-gh-release@v1
      if: github.ref == 'refs/heads/main'
      with:
        tag_name: v${{ github.run_number }}
        name: Release v${{ github.run_number }}
        draft: false
        prerelease: false
        files: |
          wol-server.tar.gz
          INSTALL.md
      env:
        GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}