#!/bin/bash

# This is a script by mcobit to install retrosmc to OSMC.
# I am not responsible for any harm done to your system.
# Using this is on your own risk.
# Script by mcobit

# Version 0.009

function start_joy2key1 {
        JOY2KEY_DEV="/dev/input/jsX"
        # call joy2key.py: arguments are curses capability names or hex values starting with '0x'
        # see: http://pubs.opengroup.org/onlinepubs/7908799/xcurses/terminfo.html
        python /home/osmc/RetroPie/scripts/joy2key.py /dev/input/jsX kcub1 kcuf1 kcuu1 kcud1 0x0a 0x09 &
        JOY2KEY1_PID=$!
}

function stop_joy2key1 {
    if [[ -n "$JOY2KEY1_PID" ]]; then
        kill -INT "$JOY2KEY1_PID"
    fi
}

# Check if in home directory, quit with a warning, if not.

if [[ $PWD != "/home/osmc" ]] || [[ ! -e "/home/osmc/install-retrosmc.sh" ]]; then
    echo "This script needs to be run from the /home/osmc directory!"
    sleep 1
    exit 1
fi

export PATH=/usr/local/bin:/usr/bin:/bin:/usr/local/games:/usr/games:/sbin:/usr/sbin:/usr/osmc/bin:/opt/vc/bin

# Check if we are root. If so, cancel installation

if [[ $(id -u) -eq 0 ]]; then
    echo "This script should not be run as root. Please run as user osmc!"
    sleep 1
    exit 1
fi

# import variables from configfile

source "/home/osmc/RetroPie/scripts/retrosmc-config.cfg"

# Shut down KODI if it is running

if [[ $(pgrep kodi.bin) ]]; then
  echo "Detected a running instance of KODI. Shutting it down to free memory for installation"
  sudo systemctl stop mediacenter
fi

# setting up the menu
start_joy2key1
cd

cmd=(dialog --backtitle "retrosmc installation - Version $CURRENT_VERSION" --menu "Welcome to the retrosmc installation.\nWhat would you like to do?\n " 14 50 16)

options=(1 "Install retrosmc"
         2 "Install/Update Launcher Addon"
         3 "Remove Launcher Addon"
         4 "Update scripts")

choices=$("${cmd[@]}" "${options[@]}" 2>&1 >/dev/tty)

for choice in $choices
do
    case $choice in
        1)
# create the config directory and file

            mkdir -p /home/osmc/RetroPie/scripts
            mkdir -p /home/osmc/RetroPie/bin
            touch "/home/osmc/RetroPie/scripts/retrosmc-config.cfg"

# install some programs needed to run the installation and retrosmc

            sudo apt-get update 2>&1 | dialog --title "Updating package database..." --infobox "\nPlease wait...\n" 11 70
            sudo apt-get --show-progress -y install dialog git pv bzip2 psmisc libusb-1.0 alsa-utils 2>&1 | grep --line-buffered -oP "(\d+(\.\d+)?(?=%))" | dialog --title "Installing dialog and pv programs if they are not present" --gauge "\nPlease wait...\n" 11 70

# download the retrosmc scripts and files

            wget --no-check-certificate -w 4 -O /home/osmc/RetroPie/scripts/joy2key.py https://raw.githubusercontent.com/mcobit/retrosmc/testing/scripts/joy2key.py
            wget --no-check-certificate -w 4 -O /home/osmc/RetroPie/bin/retrosmc_helper https://raw.githubusercontent.com/mcobit/retrosmc/testing/bin/retrosmc_helper
            wget --no-check-certificate -w 4 -O /home/osmc/RetroPie/scripts/start-install.sh https://raw.githubusercontent.com/mcobit/retrosmc/testing/scripts/start-install.sh
            wget --no-check-certificate -w 4 -O /home/osmc/RetroPie/scripts/start-setup.sh https://raw.githubusercontent.com/mcobit/retrosmc/testing/scripts/start-setup.sh
            wget --no-check-certificate -w 4 -O /home/osmc/RetroPie/scripts/start-emulationstation.sh https://raw.githubusercontent.com/mcobit/retrosmc/testing/scripts/start-emulationstation.sh
            chmod +x /home/osmc/RetroPie/scripts/*
            chmod +x /home/osmc/RetroPie/bin/*

# add fix to config.txt for sound

if [[ ! $(grep "dtparam=audio=on" "/boot/config.txt") ]]; then
sudo su -c 'echo -e "dtparam=audio=on" >> "/boot/config.txt"'
fi

# set the output volume

amixer set PCM 100

stop_joy2key1

# clone the retropie git and start the installation
            cd
            git clone https://github.com/RetroPie/RetroPie-Setup.git
            cd /home/osmc/RetroPie-Setup
            sudo ./retropie_setup.sh

# check for the right configuration and existance of the es_input file to ensure joystick autoconfig to work (important on update)

            if [ ! "$(grep Action /home/osmc/.emulationstation/es_input.cfg)" ]; then
                mkdir "/home/osmc/.emulationstation"
                cat > "/home/osmc/.emulationstation/es_input.cfg" << _EOF_
<?xml version="1.0"?>
<inputList>
  <inputAction type="onfinish">
    <command>/opt/retropie/supplementary/emulationstation/scripts/inputconfiguration.sh</command>
  </inputAction>
</inputList>
_EOF_
            fi

start_joy2key1

# end installation

            dialog --title "FINISHED!" --msgbox "\nEnjoy your retrosmc installation!\nPress OK to return to the menu.\n" 11 70

stop_joy2key1

# restart script
            cd
            exec /home/osmc/install-retrosmc.sh
            ;;
        2)

# get the addon archive file from github

	  wget --no-check-certificate -w 4 -O plugin.program.retrosmc-launcher-0.0.3.zip https://github.com/mcobit/retrosmc/raw/testing/plugin.program.retrosmc-launcher-0.0.3.zip 2>&1 | grep --line-buffered -oP "(\d+(\.\d+)?(?=%))" | dialog --title "Downloading Addon" --gauge "\nPlease wait...\n"  11 70

# extract the addon to the kodi addon directory
          if [[ -d /home/osmc/.kodi/addons/plugin.program.retropie-launcher ]]; then
            rm -r /home/osmc/.kodi/addons/plugin.program.retropie-launcher
	  fi
          unzip -o -d /home/osmc/.kodi/addons/ plugin.program.retrosmc-launcher-0.0.3.zip | dialog --title "Extracting Addon" --gauge "\nPlease wait...\n" 11 70
	  dialog --backtitle "RetroPie-OSMC setup script" --title "Installing Addon" --msgbox "\nAddon installed.\n" 11 70

# remove archive file

          rm plugin.program.retrosmc-launcher-0.0.3.zip

# restart script
            cd
            exec /home/osmc/install-retrosmc.sh
            ;;
        3)

# delete the addon from kodi addon directory
           if [[ -d /home/osmc/.kodi/addons/plugin.program.retrosmc-launcher ]]; then
	   rm -r /home/osmc/.kodi/addons/plugin.program.retrosmc-launcher
	   fi
	   if [[ -d /home/osmc/.kodi/addons/plugin.program.retropie-launcher ]]; then
	   rm -r /home/osmc/.kodi/addons/plugin.program.retropie-launcher
	   fi
	   dialog --backtitle "RetroPie-OSMC setup script" --title "Removing Addon" --msgbox "\nAddon removed.\n" 11 70

# restart script

            exec /home/osmc/install-retrosmc.sh
            ;;
        4)

# download new versions of all scripts and make them executable

            wget --no-check-certificate -w 4 -O /home/osmc/install-retrosmc.sh.1 https://github.com/mcobit/retrosmc/raw/testing/install-retrosmc.sh
            wget --no-check-certificate -w 4 -O /home/osmc/RetroPie/bin/retrosmc_helper.1 https://github.com/mcobit/retrosmc/raw/testing/bin/retrosmc_helper
            wget --no-check-certificate -w 4 -O /home/osmc/RetroPie/scripts/start-install.sh.1 https://github.com/mcobit/retrosmc/raw/testing/scripts/start-install.sh
            wget --no-check-certificate -w 4 -O /home/osmc/RetroPie/scripts/start-setup.sh.1 https://github.com/mcobit/retrosmc/raw/testing/scripts/start-setup.sh
            wget --no-check-certificate -w 4 -O /home/osmc/RetroPie/scripts/start-emulationstation.sh.1 https://github.com/mcobit/retrosmc/raw/testing/scripts/start-emulationstation.sh
            chmod +x /home/osmc/RetroPie/scripts/*
            chmod +x /home/osmc/RetroPie/bin/*
            chmod +x /home/osmc/install-retrosmc.sh.1

# replace old with new scripts

            mv /home/osmc/install-retrosmc.sh.1 /home/osmc/install-retrosmc.sh
            mv /home/osmc/RetroPie/scripts/home/osmc/RetroPie/bin/retrosmc_helper.1 /home/osmc/RetroPie/bin/retrosmc_helper
            mv /home/osmc/RetroPie/scripts/start-install.sh.1 /home/osmc/RetroPie/scripts/start-install.sh
            mv /home/osmc/RetroPie/scripts/start-setup.sh.1 /home/osmc/RetroPie/scripts/start-setup.sh
            mv /home/osmc/RetroPie/scripts/start-emulationstation.sh.1 /home/osmc/RetroPie/scripts/start-emulationstation.sh

# restart script
            cd
            exec /home/osmc/install-retrosmc.sh
            ;;
    esac
done

if [[ ! $(pgrep test) ]]; then
  sudo systemctl restart mediacenter
fi