setup.sh

#!/bin/bash

# Exit on any error
set -e

echo "Starting dotfiles setup..."

# --- Installations ---

# Install Rust
if ! command -v rustc &> /dev/null; then
    echo "Installing Rust..."
    curl --proto '=https' --tlsv1.2 -sSf https://sh.rustup.rs | sh -s -- -y
else
    echo "Rust is already installed."
fi

# Install NVM and NodeJS
export NVM_DIR="$HOME/.nvm"
if [ ! -d "$NVM_DIR" ]; then
    echo "Installing NVM..."
    # Using a recent, valid version of the NVM install script
    curl -o- https://raw.githubusercontent.com/nvm-sh/nvm/v0.40.3/install.sh | bash
else
    echo "NVM is already installed."
fi

# Source NVM to use it in the current script session
[ -s "$NVM_DIR/nvm.sh" ] && \. "$NVM_DIR/nvm.sh"

# Install latest LTS Node.js and set it as default
if ! command -v node &> /dev/null; then
    echo "Installing latest LTS version of NodeJS..."
    nvm install --lts
    nvm use --lts
    nvm alias default 'lts/*'
else
    echo "NodeJS is already installed."
fi


# Install oh-my-zsh
if [ ! -d "$HOME/.oh-my-zsh" ]; then
    echo "Installing oh-my-zsh..."
    # The empty "" is for passing arguments to the install script inside sh -c
    sh -c "$(curl -fsSL https://raw.githubusercontent.com/ohmyzsh/ohmyzsh/master/tools/install.sh)" "" --unattended
else
    echo "oh-my-zsh is already installed."
fi

# --- Configuration Backup and Symlinking ---

echo "Backing up existing configurations and creating symlinks..."

# Create a timestamped backup directory
BACKUP_DIR="$HOME/dotfiles_backup_$(date +%Y%m%d_%H%M%S)"
mkdir -p "$BACKUP_DIR"
echo "Backup directory created at $BACKUP_DIR"

# Get the absolute path of the directory where the script is located
DOTFILES_DIR=$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)

# List of configs to symlink
# format: "source_in_dotfiles;target_in_home"
CONFIGS=(
    ".zshrc;$HOME/.zshrc"
    ".config/kitty;$HOME/.config/kitty"
    ".config/zed;$HOME/.config/zed"
)

for config in "${CONFIGS[@]}"; do
    # Safely read source and destination
    IFS=';' read -r src dest <<< "$config"

    # If target exists (as file or symlink), move it to the backup directory
    if [ -e "$dest" ] || [ -L "$dest" ]; then
        echo "Backing up '$dest' to '$BACKUP_DIR/'"
        mv "$dest" "$BACKUP_DIR/"
    fi

    # Create the symlink from the dotfiles directory to the home directory
    echo "Creating symlink for '$src' at '$dest'"
    ln -s "$DOTFILES_DIR/$src" "$dest"
done

echo ""
echo "Setup complete!"
echo "Please restart your shell for all changes to take effect."