install_venv.sh

#!/bin/bash

# Smart Backup Tool Installation Script with Virtual Environment

set -e

echo "📦 Smart Backup Tool Installation"
echo "================================="

# Check if Python 3 is installed
if ! command -v python3 &> /dev/null; then
    echo "❌ Python 3 is required but not installed."
    echo "Please install Python 3 and try again."
    exit 1
fi

# Check if pip is installed
if ! command -v pip3 &> /dev/null; then
    echo "❌ pip3 is required but not installed."
    echo "Please install pip3 and try again."
    exit 1
fi

# Create and activate virtual environment
echo "🐍 Creating Python virtual environment..."
python3 -m venv venv

# Activate virtual environment
echo "⚡ Activating virtual environment..."
source venv/bin/activate

# Upgrade pip
echo "⬆️  Upgrading pip..."
pip install --upgrade pip

# Install Python dependencies
echo "📦 Installing Python dependencies..."
pip install -r requirements.txt

# Make scripts executable
chmod +x smart_backup.py
chmod +x run.sh

# Create config directory
CONFIG_DIR="$HOME/.config/smart-backup"
DATA_DIR="$HOME/.local/share/smart-backup"
LOGS_DIR="$DATA_DIR/logs"

mkdir -p "$CONFIG_DIR"
mkdir -p "$DATA_DIR"
mkdir -p "$LOGS_DIR"

# Create default config if it doesn't exist
CONFIG_FILE="$CONFIG_DIR/config.json"
if [ ! -f "$CONFIG_FILE" ]; then
    echo "⚙️  Creating default configuration..."
    cat > "$CONFIG_FILE" << EOF
{
    "default_compression": true,
    "compression_level": 6,
    "default_encryption": false,
    "backup_retention": 30,
    "progress_bar": true,
    "colored_output": true,
    "default_exclude": [
        "*.tmp",
        "*.log",
        "__pycache__",
        "node_modules",
        ".git",
        "*.pyc",
        ".DS_Store",
        "Thumbs.db"
    ],
    "compression_algorithms": {
        "text": "lzma",
        "images": "zip",
        "videos": "none",
        "archives": "none"
    },
    "max_threads": 4,
    "chunk_size": "1MB"
}
EOF
fi

# Create alias for easy access
SCRIPT_DIR="$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)"
ALIAS_COMMAND="alias smart-backup='$SCRIPT_DIR/run.sh'"

# Add alias to shell configuration files
for shell_config in "$HOME/.bashrc" "$HOME/.zshrc" "$HOME/.bash_profile"; do
    if [ -f "$shell_config" ]; then
        # Check if alias already exists
        if ! grep -q "alias smart-backup=" "$shell_config"; then
            echo "" >> "$shell_config"
            echo "# Smart Backup Tool alias" >> "$shell_config"
            echo "$ALIAS_COMMAND" >> "$shell_config"
            echo "Alias added to $shell_config"
        else
            echo "Alias already exists in $shell_config"
        fi
    fi
done

echo ""
echo "🎉 Installation completed successfully!"
echo ""
echo "USAGE OPTIONS:"
echo ""
echo "Option 1 - Use alias (recommended, restart terminal or run 'source ~/.bashrc'):"
echo "  smart-backup --help"
echo "  smart-backup create /source --destination /backup"
echo "  smart-backup list --show-sizes"
echo "  smart-backup restore /backup/snapshot --target /restore/path"
echo ""
echo "Option 2 - Use runner script directly:"
echo "  ./run.sh --help"
echo "  ./run.sh create /source --destination /backup"
echo ""
echo "Option 3 - Manual virtual environment:"
echo "  source venv/bin/activate"
echo "  python3 smart_backup.py --help"
echo "  deactivate"
echo ""
echo "NEXT STEPS:"
echo "1. Restart your terminal or run: source ~/.bashrc"
echo "2. Test installation: smart-backup --help"
echo "3. Create your first backup: smart-backup create /source --destination /backup"
echo ""
echo "📁 Configuration: $CONFIG_DIR/config.json"
echo "📊 Logs: $LOGS_DIR"
echo ""
echo "🛡️  Never lose your data again with Smart Backup Tool!"