#!/bin/bash

# Define the base directory for the "OS"
OS_NAME="UniqueOS"
BASE_DIR="$HOME/$OS_NAME"

# Create the base directory
mkdir -p "$BASE_DIR"

# Create essential directories
mkdir -p "$BASE_DIR/bin"
mkdir -p "$BASE_DIR/etc"
mkdir -p "$BASE_DIR/lib"
mkdir -p "$BASE_DIR/var"
mkdir -p "$BASE_DIR/home/user"

# Create some placeholder files
echo "#!/bin/bash" > "$BASE_DIR/bin/hello"
echo "echo 'Welcome to $OS_NAME!'" >> "$BASE_DIR/bin/hello"
chmod +x "$BASE_DIR/bin/hello"

echo "UniqueOS Configuration" > "$BASE_DIR/etc/os.conf"
echo "Version: 1.0" >> "$BASE_DIR/etc/os.conf"
echo "Maintainer: Your Name" >> "$BASE_DIR/etc/os.conf"

# Create a README file
cat <<EOL > "$BASE_DIR/README.txt"
Welcome to $OS_NAME!

This is a minimal simulation of an operating system structure.

Directories created:
- bin: Contains executable files
- etc: Configuration files
- lib: Libraries
- var: Variable data
- home/user: User home directory

To run the sample program, use:
  $BASE_DIR/bin/hello

Enjoy your unique OS experience!
EOL

# Print the structure
echo "Unique OS structure created at: $BASE_DIR"
tree "$BASE_DIR"