#!/bin/bash
#  _   _                    
# | |_| |__   ___  ___ __ _ 
# | __| '_ \ / _ \/ __/ _` |
# | |_| | | |  __/ (_| (_| |
#  \__|_| |_|\___|\___\__,_|
#
# licensed under the MIT license <http://opensource.org/licenses/MIT>
#
# install.sh - v0.9.3
#   simple bash script to install binaries, man page, bash+zsh completion
#   etc and run the first time stuff for the binary packages

INSTALL_PREFIX="/usr/local"
FOLDERS_TO_INSTALL="bin etc share"

p() {
	echo $"theca-installer: $1"
}

err() {
	p "ERROR: $1" >&2
	exit 1
}

ok() {
	if [ $? != 0 ]; then
		err "$1"
	fi
}

get_yn() {
        local prompt
        local resp
        local default
        local question="$1"
        if [ "$#" -eq "2" ]; then
                if [ ! -z "$2" ]; then
                        prompt="Y/n"
                        default=0
                else
                        prompt="y/N"
                        default=1
                fi
        else
                prompt="y/n"
        fi
        while true; do
            read -p "$question [$prompt]: " yn <&1
            case $yn in
                [yY]*) resp=0; break;;
                [nN]*) resp=1; break;;
                        "")
                                if [ "$#" -eq "2" ]; then
                                        resp=$default; break
                                else
                                        p "Please enter y or n."
                                fi
                        ;;
                *) p "Please enter y or n.";;
            esac
        done
        return $resp
}


p "#  _   _                    "
p "# | |_| |__   ___  ___ __ _ "
p "# | __| '_ \ / _ \/ __/ _\` |"
p "# | |_| | | |  __/ (_| (_| |"
p "#  \__|_| |_|\___|\___\__,_|"
p "#"

if ! [[ -w "$INSTALL_PREFIX" ]]; then
	# if you don't have priv to write to INSTALL_PREFIX invoke 'sudo' before 'cp'
	PRIV_ESC="sudo"
fi

host=`uname -s`
if [[ "$host" = "Linux" ]]; then
	COPIER="cp --parents"
elif [[ "$host" = "Darwin" ]]; then
	COPIER="rsync -R"
fi

# copy all the stuff in FOLDERS_TO_INSTALL to INSTALL_PREFIX with parent directories
# yuh yuh
if [[ -e $INSTALL_PREFIX ]]; then
	p "# installing theca"
	for f in `find $FOLDERS_TO_INSTALL`; do
		if ! [[ -d "$f" ]]; then
			$PRIV_ESC $COPIER $f $INSTALL_PREFIX
			ok "couldn't copy $f -> $INSTALL_PREFIX/$f"
			p "# copied $f -> $INSTALL_PREFIX/$f"
		fi
	done
else
	err "$INSTALL_PREFIX doesn't exist"
fi

if ! command -v theca > /dev/null 2>&1; then
	err "can't run `theca` after install, not sure what's up with that"
fi

p "#"
p "# installed `theca --version`"
p "#"

if [ ! -d "$HOME/.theca" ]; then
	# first run type stuff
	p "# would you like to setup the default profile folder and profile for theca?"
	p "# this will create:"
	p "#   $HOME/.theca"
	p "#   $HOME/.theca/default.json"
	p "# which can also be done with 'theca new-profile'"
	if get_yn; then
		p "#"
                mkdir $HOME/.theca
                ok "couldn't create $HOME/.theca"
                p "# created $HOME/.theca"
                theca new-profile
                ok "couldn't create default profile, this seems bad..."
                p "# created the default profile"
                p "#"
                p "# HAVE A FUN TIME"
	else
		p "#"
		p "# ok, we are done!"
		p "# have fun!"
	fi
fi