install

#!/bin/bash
# TTControl
# Copyright (C) 2024 Steffen Schultz
# This work has been released under the terms of the MIT license
# See the file LICENSE for more details

set -e

# Script configuration
prefix="/usr/local/bin"
config_dir="/etc"
tt_user="teamtalk"
server_dir="/var/lib/teamtalk"

echo "Starting installation process.."

# Confirmation function
confirm() {
    while true; do
        read -rp "$1 [y/n]: " yn
        case $yn in
            [Yy]*) return 0 ;;
            [Nn]*) return 1 ;;
            *) echo "Please answer y for yes or n for no." ;;
        esac
    done
}

# Preparing ttcontrol script
if [ ! -x ttcontrol ]; then
    chmod +x ttcontrol
fi

# Copy ttcontrol to desired location
echo "Checking for existing ttcontrol script..."
if [ -f "$prefix/ttcontrol" ]; then
    echo "A version of ttcontrol is already installed at $prefix/ttcontrol."
    if confirm "Do you want to overwrite it?"; then
        echo "Creating backup..."
        cp "$prefix/ttcontrol" "$prefix/ttcontrol.bak"
        echo "Replacing ttcontrol with new version..."
        install -m 0755 ttcontrol "$prefix/ttcontrol"
    else
        echo "Skipping installation step."
    fi
else
    echo "Installing ttcontrol to $prefix"
    install -m 0755 ttcontrol "$prefix/ttcontrol"
fi

# Install config file
echo "Checking for existing configuration file..."
if [ -f "$config_dir/ttcontrol.conf" ]; then
    echo "A configuration file already exists at $config_dir/ttcontrol.conf."
    if confirm "Do you want to overwrite it?"; then
        echo "Creating backup..."
        cp "$config_dir/ttcontrol.conf" "$config_dir/ttcontrol.bak"
        echo "Replacing ttcontrol.conf with new version..."
        install -m 0644 ttcontrol.conf "$config_dir/ttcontrol.conf"
    else
        echo "Skipping installation step."
    fi
else
    echo "Creating configuration file at $config_dir"
    install -m 0644 ttcontrol.conf "$config_dir/ttcontrol.conf"
fi

# Create a system user for teamtalk
echo "Checking for system user $tt_user..."
if id -u "$tt_user" >/dev/null 2>&1; then
    echo "User $tt_user already exists, skipping step."
else
    echo "Creating system user $tt_user"
    useradd -r -s /bin/false "$tt_user"
    echo "User $tt_user created successfully."
fi

# Create server directory if applicable
echo "Checking for server directory..."
if [ -d "$server_dir" ]; then
    echo "Data directory $server_dir already exists, skipping step."
else
    echo "Creating server directory at $server_dir"
    mkdir -p "$server_dir/servers"
    chown -R "$tt_user:$tt_user" "$server_dir"
    echo "Server directory created and ownership set."
fi

echo "Installation process completed successfully. Enter ttcontrol to see all available options."