install

#!/bin/bash
############################  SETUP PARAMETERS
# TODO: Makefile
debug_mode=0
############################  ZSH BUNDLES
bundles=(
    "bundle/zsh-history-substring-search"
    "--squash https://github.com/zsh-users/zsh-history-substring-search.git master"
    "bundle/zsh-syntax-highlighting"
    "--squash https://github.com/zsh-users/zsh-syntax-highlighting.git master"
    "bundle/zsh-auto-fu"
    "--squash https://github.com/hchbaw/auto-fu.zsh.git master"
);


############################  BASIC SETUP TOOLS
msg() {
    printf '%b' "$1" >&2
}

error() {
    msg "\e[31m[✘]\033[0m ${1}${2}"
    exit 1
}

success() {
    if [[ "$ret" -eq '0' ]]; then
      msg "\e[32m[✔]\033[0m ${1}${2}"
    else
      error "${1}${2}"
    fi
}

debug() {
    if [ "$debug_mode" -eq '1' ] && [ "$ret" -gt '1' ]; then
      msg "An error occured in function \"${FUNCNAME[$i+1]}\" on line ${BASH_LINENO[$i+1]}, we're sorry for that."
    fi
}

program_exists() {
    local ret='0'
    type $1 >/dev/null 2>&1 || { local ret='1'; }

    # throw error on non-zero return value
    if [ ! "$ret" -eq '0' ]; then
    error "$2"
    fi
}

############################  SETUP ROUTINE

function uninstall () {
    msg "\n\e[36mDo you want to uninstall X4?\033[0m\n[\e[31mn\033[0m] no\t\t[\e[31my\033[0m] yes\t\t[\e[31mENTER\033[0m] skip \nChoose: "

    read; echo ""
    if [[ $REPLY =~ ^[yY]$ ]]; then

	if [[ -L "$HOME/.zshrc" ]]; then
	    rm -i "$HOME/.zshrc" "$HOME/.zshenv" "$HOME/.zprofile" "$HOME/.*.zwc" "$HOME/.zcompdump" "$HOME/.zdirs" "$HOME/.zlogin" "$HOME/.zlogout"
	fi

	if [[ -L "$HOME/.bashrc" ]]; then
            rm -i "$HOME/.bashrc"
        fi

        if [[ -L "$HOME.fishrc" ]]; then
            rm -i "$HOME/.config/fish/config.fish"
        fi

	if [[ -L "$HOME/.bcrc" || -L "$HOME/.irbrc" || -L "$HOME/.gemrc" || -L "$HOME/.tmux.conf" ]]; then
	    rm -i "$HOME/.bcrc"
	    rm -i "$HOME/.cvsignore"
	    rm -i "$HOME/.gemrc"
	    rm -i "$HOME/.irbrc"
	    rm -i "$HOME/.inputrc"
	    rm -i "$HOME/.tmux.conf"
	    rm -i "$HOME/.kde4/Autostart/ssh-add"
        fi
	ret="$?"
	error "$1\n"
    fi

    success  "$2\n"
}

git_subtrees() {
    git subtree add  --prefix $1
    git subtree pull --prefix $2
    msg "\e[32m[✔]\033[0m ${2}\n"
}

setup_shell() {
    msg "\n\n\e[36mWhich shell do you want to setup?\033[0m]\n[\e[31m1\033[0m] ZSH\t\t [\e[31m2\033[0m] Bash\t [\e[31m3\033[0m] Fish\t [\e[31mENTER\033[0m] skip\nChoose: "
    read; echo ""

    if [[ $REPLY =~ ^[1]$ ]]; then
	chosen_one=$(which zsh)
        ln -sfv "$HOME/.X4/zshrc" 			"$HOME/.zshrc"
        ln -sfv "$HOME/.X4/zshenv" 			"$HOME/.zshenv"
        ln -sfv "$HOME/.X4/zprofile" 			"$HOME/.zprofile"
        ln -sfv "$HOME/.X4/zlogin" 			"$HOME/.zlogin"
        ln -sfv "$HOME/.X4/zlogout" 			"$HOME/.zlogout"
    fi

    if [[ $REPLY =~ ^[2]$ ]]; then
	chosen_one=$(which bash)
        ln -sfv "$HOME/.X4/bashrc" 			"$HOME/.bashrc"
    fi

    if [[ $REPLY =~ ^[3]$ ]]; then
	chosen_one=$(which fish)
        ln -sfv "$HOME/.X4/fishrc" 			"$HOME/.config/fish/config.fish"
    fi
    ret="$?"
    success "$1"

    msg "\n\e[36mAdd extra configs to your $chosen_one shell now?\033[0m\n[\e[31my\033[0m] yes\t\t[\e[31mn\033[0m] no\t[\e[31mENTER\033[0m] skip \nChoose: "
    read; echo ""

    if [[ ! $REPLY -eq "" ]]; then
	# Enable custom bc functions
        ln -sfv "$HOME/.X4/local/configs/bcrc" 		"$HOME/.bcrc"

	# Install VCS defaults
        ln -sfv "$HOME/.X4/local/configs/cvsignore" 	"$HOME/.cvsignore"

	# Enable custom RoR toolset defaults
        ln -sfv "$HOME/.X4/local/configs/gemrc" 	"$HOME/.gemrc"
        ln -sfv "$HOME/.X4/local/configs/irbrc" 	"$HOME/.irbrc"

	# Enable custom keybindings
        ln -sfv "$HOME/.X4/local/configs/inputrc" 	"$HOME/.inputrc"

	# Enable custom tmux defaults
	if [[ "$OSTYPE" == linux* ]]; then
          ln -sfv "$HOME/.X4/local/configs/tmux.linux.conf" "$HOME/.tmux.conf"
	fi

        # Install Konsole themes
	mkdir -p `kde4-config --localprefix`/share/apps/konsole/
	cp -fv "$HOME/.X4/local/configs/konsole/*" `kde4-config --localprefix`/share/apps/konsole/

        # Install ksshaskpass script
        ln -sfv "$HOME/.X4/local/scripts/ssh-add" "$HOME/.kde4/Autostart/"
    fi
    ret="$?"
    success "$1"

    if [[ $REPLY =~ ^[123]$ ]]; then
	msg "\n\e[36mDo you want to make $chosen_one your default shell now?\033[0m\n[\e[31my\033[0m] yes\t\t[\e[31mn\033[0m] no\t[\e[31mENTER\033[0m] skip \nChoose: "

	read; echo ""
	if [[ $REPLY =~ ^[yY]$ ]]; then
	    chsh -s $chosen_one
	fi
    fi

    ret="$?"
    success "$2\n"
}

function setup_subtrees {
    msg "\n\e[36mDo you want to add the bundle git subtrees now?\033[0m\n[\e[31my\033[0m] yes\t\t[\e[31mn\033[0m] no\t\t[\e[31mENTER\033[0m] skip \nChoose: "

    read; echo ""
    if [[ $REPLY =~ ^[yY]$ ]]; then
	cd ~/.X4
	for ((i=0; i<${#bundles[@]}; i+=2)) ; do
	    git_subtrees "${bundles[$i]} ${bundles[$i+1]}" "${bundles[$i]}"
	done
	cd -
    fi

    ret="$?"
    success "$1\n"
}

############################  MAIN()
msg			"Welcome!\n"

uninstall		"Successfully uninstalled X4 ...\n" "Skipping uninstaller ..."
setup_shell 		"Successfully installed chosen dotfile symlinks ...\n"\
	 		"Successfully set default shell to $chosen_one ...\n"

setup_subtrees		"Successfully installed all bundle subtrees ..."

success			"Thank you master commander!\n"