#!/bin/sh -e
#
# dotfiles repo download script
#
# Author: Darryl Abbate
# https://github.com/darrylabbate/dotfiles
#
# Run with either command:
# curl -fsSL get.darryl.cx | sh
# wget -qO- get.darryl.cx | sh

REPO=https://github.com/darrylabbate/dotfiles

# Exit if a dotfiles directory already exists
dotfiles_check() {
    if [ -d "$HOME/dotfiles" ]; then
        printf "\\033[31mERROR:\\033[0m ~/dotfiles already exists on this system.\\n" >&2
        exit 1
    fi
}

main() {
    # If git isn't installed
    if ! [ -x "$(command -v git)" ]; then
        
        # Download repo tar.gz via curl
        if [ -x "$(command -v curl)" ]; then
            curl -L "$REPO/archive/master.tar.gz" -o "$HOME/dotfiles-master.tar.gz"
            tar xzf "$HOME/dotfiles-master.tar.gz"
            mv "$HOME/dotfiles-master" "$HOME/dotfiles"
        
        # Else, download repo tar.gz via wget
        elif [ -x "$(command -v wget)" ]; then
            wget -O "$HOME/dotfiles-master.tar.gz" "$REPO/archive/master.tar.gz"
            tar xzf "$HOME/dotfiles-master.tar.gz"
            mv "$HOME/dotfiles-master" "$HOME/dotfiles"
        fi

    # Else, clone the dotfiles repo via git
    else
        git clone --recursive "$REPO.git" "$HOME/dotfiles"
    fi
    
    # Verify successful download and print instructions for the user
    if [ -d "$HOME/dotfiles" ]; then
        printf "\\033[32mSUCCESS:\\033[0m Repository downloaded to ~/dotfiles\\n"
        cd $HOME/dotfiles
        make
    else
        printf "\\033[31mERROR:\\033[0m dotfiles either not downloaded or not extracted successfully\\n" >&2
        exit 1
    fi
}

dotfiles_check
main