#!/bin/bash

# This script will bootstrap the machine using SaltStack
# Copyright (C) 2017  Elijah Lazkani

# This program is free software; you can redistribute it and/or
# modify it under the terms of the GNU General Public License
# as published by the Free Software Foundation; either version 2
# of the License, or (at your option) any later version.

# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
# GNU General Public License for more details.

# You should have received a copy of the GNU General Public License
# along with this program; if not, write to the Free Software
# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.

function _main () {
    case "$(uname -s)" in

        Darwin)
            _mac_os_x
            ;;

        Linux)
            _linux
            ;;

        CYGWIN*|MINGW32*|MSYS*)
            _windows
            ;;

        *)
            _unknown_os
            ;;
    esac
}

function _mac_os_x () {
    echo "Operating System identified as Mac OS X"

    # Check for Homebrew
    command brew help > /dev/null 2>&1
	  if [ $? -ne 0 ];
	  then
		    echo "Homebrew not installed, installing..."
		    ruby -e "$(curl -fsSL https://raw.githubusercontent.com/Homebrew/install/master/install)"
	  fi

    # Check SaltStack
    command salt-call -h > /dev/null 2>&1
	  if [ $? -ne 0 ];
	  then
		    echo "SaltStack not installed, installing..."
		    #brew install saltstack
	  fi

    _saltstack
}

function _linux () {
    echo "Operating System identified as Linux"

    # Check Saltstack
    command salt-call -h > /dev/null 2>&1
    if [ $? -ne 0 ];
    then
        echo "SaltStack not installed, installing..."
        curl -o bootstrap-salt.sh -L https://bootstrap.saltstack.com
        sudo sh bootstrap-salt.sh git develop
        echo "Cleaning installation script"
        rm bootstrap-salt.sh
    fi

    _saltstack
}

function _windows () {
    echo "Operating System identified as... what?"
    echo "Get a real OS..."
    exit 1
}

function _unknown_os () {
    echo "Operating System was not identified"
    exit 1
}

function _saltstack () {
    echo "Bootstrapping SaltStack"
    sudo salt-call --local --config=./ --state-output=changes grains.setvals "{ \"user\": \"$(whoami)\", \"group\": \"$(id -g -n $(whoami))\", \"homedir\": \"$HOME\" }"

    if [[ $state ]];
    then
        echo "Running $state... Sit down and chillax..."
        sudo salt-call --local --config=./ --state-output=changes  --log-level=quiet state.sls $state
    else
        echo "Sit down and chillax..."
        sudo salt-call --local --config=./ --state-output=changes  --log-level=quiet state.apply
    fi
}

state="$1"
_main