setup.sh

#!/bin/bash

RED='\033[1;31m'
GREEN='\033[1;32m'
YELLOW='\033[1;33m'
WHITE='\033[1;37m'
NC='\033[0m'

function bye {
	h=`date +%H`
	if [ $h -lt 12 ]; then
		t='morning'
	elif [ $h -lt 18 ]; then
		t='afternoon'
	else
		t='evening'
	fi
	printf "\n${GREEN}You're all set. Have a nice ${t}!${NC}\n"
}

function yes_or_no {
	while true; do
		printf "${YELLOW}$* [y/n]${NC}"
		read -p " " yn
		case $yn in
			[Yy]*) return 0 ;;  
			[Nn]*) return 1 ;;
		esac
	done
}

function install {
	if [ -n "$(uname -a | grep Darwin)" ]; then
		brew install $1
	elif [ -n "$(cat /etc/os-release 2> /dev/null | grep debian)" ]; then
		if ! command -v sudo &> /dev/null; then
			apt install $1
		else
			sudo apt install $1
		fi
	else
		printf "${RED}This script only runs on Debian / macOS.${NC}\n\n"
		exit
	fi
}

function check_and_install {
	if ! command -v $1 &> /dev/null; then
		yes_or_no "Install $1 ($2)?" && install $1
	fi
}

function setup_zsh {
	check_and_install curl "https://curl.se/"
	check_and_install git "https://git-scm.com/"
	check_and_install zsh "Z shell"
	yes_or_no "Install Oh My Zsh (https://ohmyz.sh/)? ${NC}${GREEN}Please type \"exit\" and press enter after installation${NC}${YELLOW}" && sh -c "$(curl -fsSL https://raw.githubusercontent.com/ohmyzsh/ohmyzsh/master/tools/install.sh)"
	check_and_install autojump "https://github.com/wting/autojump"
	yes_or_no "Install zsh-syntax-highlighting (https://github.com/zsh-users/zsh-syntax-highlighting)?" && /bin/zsh -c 'source ~/.zshrc && git clone https://github.com/zsh-users/zsh-syntax-highlighting.git $ZSH_CUSTOM/plugins/zsh-syntax-highlighting'
	yes_or_no "Install zsh-autosuggestions (https://github.com/zsh-users/zsh-autosuggestions)?" && /bin/zsh -c 'source ~/.zshrc && git clone https://github.com/zsh-users/zsh-autosuggestions.git $ZSH_CUSTOM/plugins/zsh-autosuggestions'
	yes_or_no "Replace .zshrc ?" && cp rc/zshrc ~/.zshrc
}

function setup_screen {
	check_and_install screen "https://formulae.brew.sh/formula/screen"
	yes_or_no "Replace .screenrc ?" && cp rc/screenrc ~/.screenrc
}

function setup_vim {
	check_and_install vim "https://www.vim.org/"
	yes_or_no "Setup vim folders?" && mkdir -p ~/.vim/colors && mkdir -p ~/.vim/undo
	yes_or_no "Download vim color theme?" && curl -L "https://raw.github.com/altercation/vim-colors-solarized/master/colors/solarized.vim" -o ~/.vim/colors/solarized.vim
	yes_or_no "Replace .vimrc ?" && cp rc/vimrc ~/.vimrc
}

if [ -n "$(uname -a | grep Darwin)" ]; then
	printf "${GREEN}Hi! macOS user,${NC}\n\n"
	# brew
	if ! command -v brew &> /dev/null; then
		yes_or_no "Install Homebrew (https://brew.sh)?" && /bin/bash -c "$(curl -fsSL https://raw.githubusercontent.com/Homebrew/install/HEAD/install.sh)"
	fi
elif [ -n "$(cat /etc/os-release 2> /dev/null | grep debian)" ]; then
	printf "${GREEN}Hi! Debian user,${NC}\n\n"
	# apt
	if ! command -v sudo &> /dev/null; then
		yes_or_no "Update package list?" && apt update
	else
		yes_or_no "Update package list?" && sudo apt update
	fi
else
	printf "${RED}This script only runs on Debian / macOS.${NC}\n\n"
	exit
fi

setup_zsh
setup_screen
setup_vim
bye