#!/bin/bash

tput rev
printf '%s\n' "Luxcena-neo Installer"
tput sgr0
printf '\e[93m%s\e[0m\n\n' "---------------------"

if [ $USER != "pi" ]; then
    printf "Install failed...\nOther user than 'pi' detected. If you want to use another user, you have to install manually."
    exit 1
fi

# Update system
tput sc
tput setaf 4
printf ". Update your system (y/n)? "
while :
do
    read -n 1 -p "" YNQuestionAnswer
    if [[ $YNQuestionAnswer == "y" ]]; then
        tput rc; tput el
        printf ". Update your system?: \e[0;32mYes\e[0m\n"
        tput sc
        sudo apt-get -y -qq update || { printf "\n\nInstall failed.\n"; exit 1; }
        sudo apt-get -y -qq upgrade || { printf "\n\nInstall failed.\n"; exit 1; }
        tput rc; tput ed
        break
    elif [[ $YNQuestionAnswer == "n" ]]; then
        tput rc; tput el
        printf ". Update your system?: \e[0;31mNo\e[0m\n"
        break
    fi
done

# Install packages
tput sc
tput setaf 4
printf ". Install required packages (y/n)? "
while :
do
    read -n 1 -p "" YNQuestionAnswer
    if [[ $YNQuestionAnswer == "y" ]]; then
        tput rc; tput el
        printf ". Install required packages?: \e[0;32mYes\e[0m\n"
        tput sc
        sudo apt-get -y -qq install nodejs scons python-dev swig || { printf "\n\nInstall failed.\n"; exit 1; }
        if [ $? -eq 0 ]; then
            tput rc; tput ed
            printf "✓"
        else
            printf "\nInstall failed.\n"
            exit 1
        fi
        break
    elif [[ $YNQuestionAnswer == "n" ]]; then
        tput rc; tput el
        printf ". Install required packages?: \e[0;31mNo\e[0m\n"
        tput setaf 2
        printf "  We are now assuming that all the following packages exists on your system:\n"
        printf "    nodejs scons python-dev swig\n"
        tput sgr0
        break
    fi
done

# Install led-library
tput sc
tput setaf 4
printf ". Install jgarff's rpi_ws281x library (y/n)? "
while :
do
    read -n 1 -p "" YNQuestionAnswer
    if [[ $YNQuestionAnswer == "y" ]]; then
        tput rc; tput el
        printf ". Install jgarff's rpi_ws281x library?: \e[0;32mYes\e[0m\n"
        tput sc
        git clone https://github.com/jgarff/rpi_ws281x /tmp/rpi_ws281x # TODO CHANGE PATH
        python /tmp/rpi_ws281x/python/setup.py install # TODO CHANGE PAHT
        if [ $? -eq 0 ]; then
            tput rc; tput ed
            printf "✓"
        else
            printf "\nInstall failed.\n"
            exit 1
        fi
        break
    elif [[ $YNQuestionAnswer == "n" ]]; then
        tput rc; tput el
        printf ". Install jgarff's rpi_ws281x library?: \e[0;31mNo\e[0m\n"
        break
    fi
done


tput setaf 4
printf ". Which rPi is this? (j:↓, k:↑, ↩:↩)\n"
tput sgr0
tput sc
tput bel

tput setaf 4
printf ". Installing the app itself...\n"
tput sgr0

# Create user 'luxcena-neo'
tput setaf 8
printf '%s\n' "  - Creating user 'lux-neo'..."
tput sgr0
username="lux-neo"
sudo egrep "^$username" /etc/passwd >/dev/null
if [ $? -eq 0 ]; then
	echo "User already exists, continuing..."
else
	#pass=$(perl -e 'print crypt($ARGV[0], "password")' $password)
	sudo useradd -m $username
	[ $? -eq 0 ] && echo "User has been added to system!" || { printf "\n\nInstall failed.\n"; exit 1; }
fi


userDir=$(eval echo "~$username")

# First we make our directories
tput setaf 8
printf '%s\n' "  - Making app-dir (/bin/luxcena-neo)..."
tput sgr0
sudo mkdir -p "$userDir/install" || { printf "\n\nInstall failed.\n"; exit 1; }
sudo chown $username:$username "$userDir/install"
sudo mkdir -p "$userDir/install/src" || { printf "\n\nInstall failed.\n"; exit 1; }
sudo chown $username:$username "$userDir/install/src"
sudo mkdir -p "$userDir/install/userdata" || { printf "\n\nInstall failed.\n"; exit 1; }
sudo chown $username:$username "$userDir/install/userdata"

# Third we copy the source into the correct swap-folder
tput setaf 8
printf '%s\n' "  - Copying sourceCode to app-dir..."
tput sgr0
sudo cp -r . "$userDir/install/src" || { printf "\n\nInstall failed.\n"; exit 1; }
sudo chown -R $username:$username "$userDir/install/src"

# fourth we run npm i
tput setaf 8
printf '%s\n' "  - Running npm i..."
tput sgr0
tput sc
export NODE_ENV=production || { printf "\n\nInstall failed.\n"; exit 1; }
sudo runuser -l $username -c "npm --prefix ~/install/src install ~/install/src --only=production || { printf "\n\nInstall failed.\n"; exit 1; }" # This is probably a bit overkill to have --only=... but better safe than sorry?
tput rc; tput ed

# Fifth we add the service files
tput setaf 8
printf '%s\n' "  - Adding service-file to systemd..."
tput sgr0
sudo cp bin/luxcena-neo.service /etc/systemd/system/luxcena-neo.service
sudo systemctl daemon-reload

# Installation is done!
printf '\n\e[5m%s\e[0m\n' "🎉Luxcena-Neo is now installed🎉"