#!/bin/bash

# Define variables
REPO_URL="https://gitea.moto-adv.com/ske087/signage-player.git"  # Replace with your Gitea repository URL
PROJECT_DIR="/home/pi/Desktop/ds-player"  # Full path to the installation folder
VENV_DIR="$PROJECT_DIR/venv"  # Path to the virtual environment
SERVICE_NAME="ds-player.service"

# Step 0: Check if an internet connection exists
echo "Checking internet connection..."
if ! ping -c 1 google.com &> /dev/null; then
    echo "No internet connection detected. Please ensure the device is connected to the internet."
    exit 1
else
    echo "Internet connection is active."
fi

# Step 1: Check if the installation folder exists
if [ -d "$PROJECT_DIR" ]; then
    echo "Installation folder already exists: $PROJECT_DIR"
    echo "Skipping installation steps and starting the service..."
    sudo systemctl start "$SERVICE_NAME"
    echo "Service started successfully!"
    exit 0
fi

# Step 2: Update the system
echo "Updating the system..."
sudo apt-get update -y
sudo apt-get upgrade -y

# Step 3: Clone the repository
echo "Cloning the repository from $REPO_URL..."
git clone "$REPO_URL" "$PROJECT_DIR"

# Step 4: Set permissions for the project directory
echo "Setting permissions for the project directory to 0777..."
sudo chmod -R 0777 "$PROJECT_DIR"

# Step 5: Navigate to the project directory
cd "$PROJECT_DIR" || { echo "Failed to navigate to project directory."; exit 1; }

# Step 6: Install Python virtual environment tools
echo "Installing Python virtual environment tools..."
sudo apt-get install -y python3-venv python3-pip

# Step 7: Create a virtual environment
echo "Creating a Python virtual environment in $VENV_DIR..."
python3 -m venv "$VENV_DIR"

# Step 8: Activate the virtual environment and install dependencies
echo "Activating the virtual environment and installing dependencies..."
source "$VENV_DIR/bin/activate"
pip install --upgrade pip
pip install -r requirements.txt

# Step 9: Install system dependencies for ffpyplayer
echo "Installing system dependencies for ffpyplayer..."
sudo apt-get install -y libsdl2-dev libsdl2-ttf-dev libsdl2-image-dev libsdl2-mixer-dev \
libavcodec-dev libavformat-dev libavdevice-dev libavutil-dev libswscale-dev libswresample-dev libpostproc-dev \
libavcodec-extra libavdevice-dev libavfilter-dev

# Step 10: Install ffpyplayer in the virtual environment
echo "Installing ffpyplayer in the virtual environment..."
pip install ffpyplayer

# Step 11: Create a systemd service for autostart
echo "Creating systemd service for autostart..."
SERVICE_FILE="/etc/systemd/system/$SERVICE_NAME"
sudo bash -c "cat > $SERVICE_FILE" <<EOL
[Unit]
Description=Kivy Media Player
After=network.target

[Service]
ExecStart=$VENV_DIR/bin/python3 $PROJECT_DIR/src/main.py
WorkingDirectory=$PROJECT_DIR
Restart=always
User=pi
Environment=DISPLAY=:0
Environment=XAUTHORITY=/home/pi/.Xauthority

[Install]
WantedBy=multi-user.target
EOL

# Step 12: Enable and start the service
echo "Enabling and starting the systemd service..."
sudo systemctl daemon-reload
sudo systemctl enable "$SERVICE_NAME"
sudo systemctl start "$SERVICE_NAME"

# Step 13: Confirm installation
echo "Installation completed successfully!"
echo "The application will now start automatically on boot."
echo "You can manually start it using: sudo systemctl start $SERVICE_NAME"
echo "You can check its status using: sudo systemctl status $SERVICE_NAME"