installer.sh

#!/bin/bash
YES_ANSWER=1
NO_ANSWER=2
QUIT_ANSWER=3
parse_user_input()
{
  if [ "$1" = "0" ] && [ "$2" = "0" ] && [ "$3" = "0" ]; then
    return
  fi
  while [ true ]; do
    Options="["
    if [ "$1" = "1" ]; then
      Options="${Options}y"
      if [ "$2" = "1" ] || [ "$3" = "1" ]; then
        Options="$Options/"
      fi
    fi
    if [ "$2" = "1" ]; then
      Options="${Options}n"
      if [ "$3" = "1" ]; then
        Options="$Options/"
      fi
    fi
    if [ "$3" = "1" ]; then
      Options="${Options}quit"
    fi
    Options="$Options]"
    read -p "$Options >> " USER_RESPONSE
    USER_RESPONSE=$(echo $USER_RESPONSE | awk '{print tolower($0)}')
    if [ "$USER_RESPONSE" = "y" ] && [ "$1" = "1" ]; then
      return $YES_ANSWER
    else
      if [ "$USER_RESPONSE" = "n" ] && [ "$2" = "1" ]; then
        return $NO_ANSWER
      else
        if [ "$USER_RESPONSE" = "quit" ] && [ "$3" = "1" ]; then
          printf "\nGoodbye.\n\n"
          exit
        fi
      fi
    fi
    printf "Please enter a valid response.\n"
  done
}

select_option()
{
  local _result=$1
  local ARGS=("$@")
  if [ "$#" -gt 0 ]; then
    while [ true ]; do
      local count=1
      for option in "${ARGS[@]:1}"; do
        echo "$count) $option"
        ((count+=1))
      done
      echo ""
      local USER_RESPONSE
      read -p "Please select an option [1-$(($#-1))] " USER_RESPONSE
      case $USER_RESPONSE in
        ''|*[!0-9]*) echo "Please provide a valid number"
        continue
        ;;
        *) if [[ "$USER_RESPONSE" -gt 0 && $((USER_RESPONSE+1)) -le "$#" ]]; then
          local SELECTION=${ARGS[($USER_RESPONSE)]}
          echo "Selection: $SELECTION"
          eval $_result=\$SELECTION
          return
        else
          clear
          echo "Please select a valid option"
        fi
        ;;
      esac
    done
  fi
}

clear
echo "=============Starting Assistant Installer=============="
echo ""
echo "From the list below, choose your option for installation: "
select_option assistants Google-Assistant Alexa Both
echo ""
if [ "$assistants" = "Both" ]; then
  echo "You have chosen to install both Google Assistant and Alexa"
else
  echo "You have chosen to install $assistants"
fi

case $assistants in
  Alexa)
    git clone https://github.com/shivasiddharth/alexa-avs-sample-app
    echo ""
    echo ""
    read -r -p "Enter the Product Id given in the Amazon Developer portal: " productid
    echo ""
    read -r -p "Enter the Client Id given in the Amazon Developer portal: " clientid
    echo ""
    read -r -p "Enter the Client Secret given in the Amazon Developer portal: " clientsecret
    echo ""

    ProductID=$productid
    ClientID=$clientid
    ClientSecret=$clientsecret
    #-------------------------------------------------------
    # Pre-populated for testing. Feel free to change.
    #-------------------------------------------------------
    # Your Country. Must be 2 characters!
    Country='US'
    # Your state. Must be 2 or more characters.
    State='WA'
    # Your city. Cannot be blank.
    City='SEATTLE'
    # Your organization name/company name. Cannot be blank.
    Organization='AVS_USER'
    # Your device serial number. Cannot be blank, but can be any combination of characters.
    DeviceSerialNumber='123456789'
    # Your KeyStorePassword. We recommend leaving this blank for testing.
    KeyStorePassword=''
    Credential=""
    get_credential()
    {
      Credential=""
      read -p ">> " Credential
      while [ "${#Credential}" -lt "$1" ]; do
        echo "Input has invalid length."
        echo "Please try again."
        read -p ">> " Credential
      done
    }

    check_credentials()
    {
      clear
      echo "======Verifying AVS Credentials======"
      echo ""
      if [ "${#ProductID}" -eq 0 ] || [ "${#ClientID}" -eq 0 ] || [ "${#ClientSecret}" -eq 0 ]; then
        echo "At least one of the needed credentials (ProductID, ClientID or ClientSecret) is missing."
        echo ""
        echo ""
        echo "These values can be found here https://developer.amazon.com/edw/home.html, fix this now?"
        echo ""
        echo ""
        parse_user_input 1 0 1
      fi

      # Print out of variables and validate user inputs
      if [ "${#ProductID}" -ge 1 ] && [ "${#ClientID}" -ge 15 ] && [ "${#ClientSecret}" -ge 15 ]; then
        echo "ProductID >> $ProductID"
        echo "ClientID >> $ClientID"
        echo "ClientSecret >> $ClientSecret"
        echo ""
        echo ""
        echo "Is this information correct?"
        echo ""
        echo ""
        parse_user_input 1 1 0
        USER_RESPONSE=$?
        if [ "$USER_RESPONSE" = "$YES_ANSWER" ]; then
          return
        fi
      fi

      clear
      # Check ProductID
      NeedUpdate=0
      echo ""
      if [ "${#ProductID}" -eq 0 ]; then
        echo "Your ProductID is not set"
        NeedUpdate=1
      else
        echo "Your ProductID is set to: $ProductID."
        echo "Is this information correct?"
        echo ""
        parse_user_input 1 1 0
        USER_RESPONSE=$?
        if [ "$USER_RESPONSE" = "$NO_ANSWER" ]; then
          NeedUpdate=1
        fi
      fi
      if [ $NeedUpdate -eq 1 ]; then
        echo ""
        echo "This value should match your ProductID (or Device Type ID) entered at https://developer.amazon.com/edw/home.html."
        echo "The information is located under Device Type Info"
        echo "E.g.: RaspberryPi3"
        get_credential 1
        ProductID=$Credential
      fi

      echo "-------------------------------"
      echo "ProductID is set to >> $ProductID"
      echo "-------------------------------"

      # Check ClientID
      NeedUpdate=0
      echo ""
      if [ "${#ClientID}" -eq 0 ]; then
        echo "Your ClientID is not set"
        NeedUpdate=1
      else
        echo "Your ClientID is set to: $ClientID."
        echo "Is this information correct?"
        echo ""
        parse_user_input 1 1 0
        USER_RESPONSE=$?
        if [ "$USER_RESPONSE" = "$NO_ANSWER" ]; then
          NeedUpdate=1
        fi
      fi
      if [ $NeedUpdate -eq 1 ]; then
        echo ""
        echo "Please enter your ClientID."
        echo "This value should match the information at https://developer.amazon.com/edw/home.html."
        echo "The information is located under the 'Security Profile' tab."
        echo "E.g.: amzn1.application-oa2-client.xxxxxxxx"
        get_credential 28
        ClientID=$Credential
      fi

      echo "-------------------------------"
      echo "ClientID is set to >> $ClientID"
      echo "-------------------------------"

      # Check ClientSecret
      NeedUpdate=0
      echo ""
      if [ "${#ClientSecret}" -eq 0 ]; then
        echo "Your ClientSecret is not set"
        NeedUpdate=1
      else
        echo "Your ClientSecret is set to: $ClientSecret."
        echo "Is this information correct?"
        echo ""
        parse_user_input 1 1 0
        USER_RESPONSE=$?
        if [ "$USER_RESPONSE" = "$NO_ANSWER" ]; then
          NeedUpdate=1
        fi
      fi
      if [ $NeedUpdate -eq 1 ]; then
        echo ""
        echo "Please enter your ClientSecret."
        echo "This value should match the information at https://developer.amazon.com/edw/home.html."
        echo "The information is located under the 'Security Profile' tab."
        echo "E.g.: fxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxa"
        get_credential 20
        ClientSecret=$Credential
      fi

      echo "-------------------------------"
      echo "ClientSecret is set to >> $ClientSecret"
      echo "-------------------------------"

      check_credentials
    }
    use_template()
    {
      Template_Loc=$1
      Template_Name=$2
      Target_Name=$3
      while IFS='' read -r line || [[ -n "$line" ]]; do
        while [[ "$line" =~ (\$\{[a-zA-Z_][a-zA-Z_0-9]*\}) ]]; do
          LHS=${BASH_REMATCH[1]}
          RHS="$(eval echo "\"$LHS\"")"
          line=${line//$LHS/$RHS}
        done
        echo "$line" >> "$Template_Loc/$Target_Name"
      done < "$Template_Loc/$Template_Name"
    }

    get_alpn_version()
    {
      Java_Version=`java -version 2>&1 | awk 'NR==1{ gsub(/"/,""); print $3 }'`
      echo "java version: $Java_Version "
      Java_Major_Version=$(echo $Java_Version | cut -d '_' -f 1)
      Java_Minor_Version=$(echo $Java_Version | cut -d '_' -f 2)
      echo "major version: $Java_Major_Version minor version: $Java_Minor_Version"

      Alpn_Version=""
      if [ "$Java_Major_Version" = "1.8.0" ] && [ "$Java_Minor_Version" -gt 59 ]; then
        if [ "$Java_Minor_Version" -gt 120 ]; then
          Alpn_Version="8.1.11.v20170118"
        elif [ "$Java_Minor_Version" -gt 111 ]; then
          Alpn_Version="8.1.10.v20161026"
        elif [ "$Java_Minor_Version" -gt 100 ]; then
          Alpn_Version="8.1.9.v20160720"
        elif [ "$Java_Version" == "1.8.0_92" ]; then
          Alpn_Version="8.1.8.v20160420"
        elif [ "$Java_Minor_Version" -gt 70 ]; then
          Alpn_Version="8.1.7.v20160121"
        elif [[ $Java_Version ==  "1.8.0_66" ]]; then
          Alpn_Version="8.1.6.v20151105"
        elif [[ $Java_Version ==  "1.8.0_65" ]]; then
          Alpn_Version="8.1.6.v20151105"
        elif [[ $Java_Version ==  "1.8.0_60" ]]; then
          Alpn_Version="8.1.5.v20150921"
        fi
      else
        echo "Unsupported or unknown java version ($Java_Version), defaulting to latest known ALPN."
        Echo "Check http://www.eclipse.org/jetty/documentation/current/alpn-chapter.html#alpn-versions to get the alpn version matching your JDK version."
        read -t 10 -p "Hit ENTER or wait ten seconds"
      fi
    }

    if [ "$ProductID" = "YOUR_PRODUCT_ID_HERE" ]; then
      ProductID=""
    fi
    if [ "$ClientID" = "YOUR_CLIENT_ID_HERE" ]; then
      ClientID=""
    fi
    if [ "$ClientSecret" = "YOUR_CLIENT_SECRET_HERE" ]; then
      ClientSecret=""
    fi

    check_credentials
    # Preconfigured variables
    OS=rpi
    User=$(id -un)
    Group=$(id -gn)
    Origin=/home/pi/alexa-avs-sample-app
    Samples_Loc=$Origin/samples
    Java_Client_Loc=$Samples_Loc/javaclient
    Wake_Word_Agent_Loc=$Samples_Loc/wakeWordAgent
    Companion_Service_Loc=$Samples_Loc/companionService
    Kitt_Ai_Loc=$Wake_Word_Agent_Loc/kitt_ai
    Sensory_Loc=$Wake_Word_Agent_Loc/sensory
    External_Loc=$Wake_Word_Agent_Loc/ext
    Locale="en-US"

    mkdir $Kitt_Ai_Loc
    mkdir $Sensory_Loc
    mkdir $External_Loc


    # Select a Locale
    clear
    echo "==== Setting Locale ====="
    echo ""
    echo ""
    echo "Which locale would you like to use?"
    echo ""
    echo ""
    echo "======================================================="
    echo ""
    echo ""
    select_option Locale "en-US" "en-GB" "de-DE" "en-CA" "en-IN" "ja-JP"

    Wake_Word_Detection_Enabled="true"

    echo ""
    echo ""
    echo "==============================================="
    echo " Making sure we are installing to the right OS"
    echo "==============================================="
    echo ""
    echo ""
    echo "=========== Installing Oracle Java8 ==========="
    echo ""
    echo ""
    echo "========== Installing Java Dependency ============"
    sudo apt-get install dirmngr -y
    echo oracle-java8-installer shared/accepted-oracle-license-v1-1 select true | sudo /usr/bin/debconf-set-selections
    chmod +x $Java_Client_Loc/install-java8.sh
    cd $Java_Client_Loc && bash ./install-java8.sh
    cd $Origin

    echo ""
    echo ""
    echo "==============================="
    echo "*******************************"
    echo " *** STARTING Alexa Installation ***"
    echo "  ** Grab a Coffee or Beer and relax this will take quite a while**"
    echo "   *************************"
    echo "   ========================="
    echo ""
    echo ""

    # Install dependencies

    echo "========== Getting the code for Kitt-Ai ==========="
    cd $Kitt_Ai_Loc
    git clone https://github.com/Kitt-AI/snowboy.git

    echo "========== Getting the code for Sensory ==========="
    cd $Sensory_Loc
    git clone https://github.com/Sensory/alexa-rpi.git

    cd $Origin

    echo "========== Installing Libraries for Kitt-Ai and Sensory: ALSA, Atlas ==========="
    sudo apt-get -y install libasound2-dev
    sudo apt-get -y install libatlas-base-dev
    sudo ldconfig

    echo "========== Installing WiringPi ==========="
    sudo apt-get -y install wiringpi
    sudo ldconfig

    echo "========== Installing VLC and associated Environmental Variables =========="
    sudo apt-get install -y vlc vlc-nox vlc-data
    #Make sure that the libraries can be found
    sudo sh -c "echo \"/usr/lib/vlc\" >> /etc/ld.so.conf.d/vlc_lib.conf"
    sudo sh -c "echo \"VLC_PLUGIN_PATH=\"/usr/lib/vlc/plugin\"\" >> /etc/environment"

    # Create a libvlc soft link if doesn't exist
    if ! ldconfig -p | grep "libvlc.so "; then
      [ -e $Java_Client_Loc/lib ] || mkdir $Java_Client_Loc/lib
      if ! [ -e $Java_Client_Loc/lib/libvlc.so ]; then
        Target_Lib=`ldconfig -p | grep libvlc.so | sort | tail -n 1 | rev | cut -d " " -f 1 | rev`
        ln -s $Target_Lib $Java_Client_Loc/lib/libvlc.so
      fi
    fi

    sudo ldconfig

    echo "========== Installing NodeJS =========="
    sudo apt-get install -y nodejs npm build-essential
    sudo ln -s /usr/bin/nodejs /usr/bin/node
    node -v
    sudo ldconfig

    echo "========== Installing Maven =========="
    sudo apt-get install -y maven
    mvn -version
    sudo ldconfig

    echo "========== Installing OpenSSL and Generating Self-Signed Certificates =========="
    sudo apt-get install -y openssl
    sudo ldconfig

    echo "========== Downloading and Building Port Audio Library needed for Kitt-Ai Snowboy =========="
    cd $Kitt_Ai_Loc/snowboy/examples/C++
    bash ./install_portaudio.sh
    sudo ldconfig
    cd $Kitt_Ai_Loc/snowboy/examples/C++
    make -j4
    sudo ldconfig
    cd $Origin

    echo "========== Generating ssl.cnf =========="
    if [ -f $Java_Client_Loc/ssl.cnf ]; then
      rm $Java_Client_Loc/ssl.cnf
    fi
    use_template $Java_Client_Loc template_ssl_cnf ssl.cnf

    echo "========== Generating generate.sh =========="
    if [ -f $Java_Client_Loc/generate.sh ]; then
      rm $Java_Client_Loc/generate.sh
    fi
    use_template $Java_Client_Loc template_generate_sh generate.sh

    echo "========== Executing generate.sh =========="
    chmod +x $Java_Client_Loc/generate.sh
    cd $Java_Client_Loc && bash ./generate.sh
    cd $Origin

    echo "========== Configuring Companion Service =========="
    if [ -f $Companion_Service_Loc/config.js ]; then
      rm $Companion_Service_Loc/config.js
    fi
    use_template $Companion_Service_Loc template_config_js config.js

    echo "========== Configuring Java Client =========="
    if [ -f $Java_Client_Loc/config.json ]; then
      rm $Java_Client_Loc/config.json
    fi
    use_template $Java_Client_Loc template_config_json config.json

    echo "========== Installing CMake =========="
    sudo apt-get install -y cmake
    sudo ldconfig

    echo "========== Installing Java Client =========="
    if [ -f $Java_Client_Loc/pom.xml ]; then
      rm $Java_Client_Loc/pom.xml
    fi

    get_alpn_version

    cp $Java_Client_Loc/pom_pi.xml $Java_Client_Loc/pom.xml

    sed -i "s/The latest version of alpn-boot that supports .*/The latest version of alpn-boot that supports JDK $Java_Version -->/" $Java_Client_Loc/pom.xml
    sed -i "s:<alpn-boot.version>.*</alpn-boot.version>:<alpn-boot.version>$Alpn_Version</alpn-boot.version>:" $Java_Client_Loc/pom.xml

    cd $Java_Client_Loc && mvn validate && mvn install && cd $Origin

    echo "========== Installing Companion Service =========="
    cd $Companion_Service_Loc && npm install && cd $Origin

    if [ "$Wake_Word_Detection_Enabled" = "true" ]; then
      echo "========== Preparing External dependencies for Wake Word Agent =========="
      mkdir $External_Loc/include
      mkdir $External_Loc/lib
      mkdir $External_Loc/resources

      cp $Kitt_Ai_Loc/snowboy/include/snowboy-detect.h $External_Loc/include/snowboy-detect.h
      cp $Kitt_Ai_Loc/snowboy/examples/C++/portaudio/install/include/portaudio.h $External_Loc/include/portaudio.h
      cp $Kitt_Ai_Loc/snowboy/examples/C++/portaudio/install/include/pa_ringbuffer.h $External_Loc/include/pa_ringbuffer.h
      cp $Kitt_Ai_Loc/snowboy/examples/C++/portaudio/install/include/pa_util.h $External_Loc/include/pa_util.h
      cp $Kitt_Ai_Loc/snowboy/lib/$OS/libsnowboy-detect.a $External_Loc/lib/libsnowboy-detect.a
      cp $Kitt_Ai_Loc/snowboy/examples/C++/portaudio/install/lib/libportaudio.a $External_Loc/lib/libportaudio.a
      cp $Kitt_Ai_Loc/snowboy/resources/common.res $External_Loc/resources/common.res
      cp $Kitt_Ai_Loc/snowboy/resources/alexa/alexa-avs-sample-app/alexa.umdl $External_Loc/resources/alexa.umdl

      sudo ln -s /usr/lib/atlas-base/atlas/libblas.so.3 $External_Loc/lib/libblas.so.3

      $Sensory_Loc/alexa-rpi/bin/sdk-license file $Sensory_Loc/alexa-rpi/config/license-key.txt $Sensory_Loc/alexa-rpi/lib/libsnsr.a $Sensory_Loc/alexa-rpi/models/spot-alexa-rpi-20500.snsr $Sensory_Loc/alexa-rpi/models/spot-alexa-rpi-21000.snsr $Sensory_Loc/alexa-rpi/models/spot-alexa-rpi-31000.snsr
      cp $Sensory_Loc/alexa-rpi/include/snsr.h $External_Loc/include/snsr.h
      cp $Sensory_Loc/alexa-rpi/lib/libsnsr.a $External_Loc/lib/libsnsr.a
      cp $Sensory_Loc/alexa-rpi/models/spot-alexa-rpi-31000.snsr $External_Loc/resources/spot-alexa-rpi.snsr

      mkdir $Wake_Word_Agent_Loc/tst/ext
      cp -R $External_Loc/* $Wake_Word_Agent_Loc/tst/ext
      cd $Origin

      echo "========== Compiling Wake Word Agent =========="
      cd $Wake_Word_Agent_Loc/src && cmake . && make -j4
      cd $Wake_Word_Agent_Loc/tst && cmake . && make -j4
    fi

    chown -R $User:$Group $Origin
    chown -R $User:$Group /home/$User/.asoundrc

    cd $Origin
    cd /home/pi/
    sudo apt-get install npm -y
    echo ""
    echo '============================='
    echo '*****************************'
    echo '========= Finished Installing Alexa =========='
    echo '*****************************'
    echo '============================='
    echo ""
    echo ""
    Number_Terminals=2
    if [ "$Wake_Word_Detection_Enabled" = "true" ]; then
      Number_Terminals=3
    fi
    echo "================Run the Alexa demo to authenticate============"
    echo "To run the demo, do the following in $Number_Terminals seperate terminals:"
    echo "Run the companion service: cd $Companion_Service_Loc && sudo npm start"
    echo "Run the AVS Java Client: cd $Java_Client_Loc && sudo mvn exec:exec"
    if [ "$Wake_Word_Detection_Enabled" = "true" ]; then
      echo "Run the wake word agent: "
      echo "  KITT_AI: cd $Wake_Word_Agent_Loc/src && sudo ./wakeWordAgent -e kitt_ai"
    fi
    echo ""
    echo "After that, proceed to step-9 mentioned in the README doc to set the assitsants to auto start on boot."
    exit
    ;;
  Google-Assistant)
  echo "Have you downloaded the credentials file, and placed it in /home/pi/ directory?"
  parse_user_input 1 1 0
  USER_RESPONSE=$?
  if [ "$USER_RESPONSE" = "$YES_ANSWER" ]; then
    echo "=============Starting Google Assistant Installer============="
    git clone https://github.com/shivasiddharth/GassistPi -b Gassistant-RPi
    if [[ "$(uname -m)" == "armv7l" ]] ; then
      sudo chmod +x /home/pi/Assistants-Pi/scripts/gassist-installer-pi3.sh
      sudo /home/pi/Assistants-Pi/scripts/gassist-installer-pi3.sh
    else
      sudo chmod +x /home/pi/Assistants-Pi/scripts/gassist-installer-pi-zero.sh
      sudo /home/pi/Assistants-Pi/scripts/gassist-installer-pi-zero.sh
    fi
    sudo apt-get install npm -y
    echo ""
    echo "Finished installing Google Assistant....."
  elif ["$USER_RESPONSE" = "$NO_ANSWER" ]; then
    echo "Download the credentials file, , place it in /home/pi/ directory and start the installer again.."
    exit
  fi

  echo ""
  echo "===============Run Google Assistant demo==========="
  echo "To run the google assistant demo"
  echo "Open a new terminal and execute: "
  echo "source env/bin/activate"
  echo "Test the installed google assistant using the following syntax. Replace 'project-id' and 'model-id'with your respective ids "
  echo ""
  echo "=============================For Pi 2B and Pi 3B======================================"
  echo "googlesamples-assistant-hotword --project_id 'project-id' --device_model_id 'model-id'"
  echo ""
  echo "=================================For Pi Zero=========================================="
  echo "googlesamples-assistant-pushtotalk --project_id 'project-id' --device_model_id 'project-id'"
  echo ""
  echo "After that, proceed to step-9 mentioned in the README doc to set the assitsants to auto start on boot."
  exit
    ;;
  Both)
    git clone https://github.com/shivasiddharth/alexa-avs-sample-app
    echo ""
    echo ""
    read -r -p "Enter the Product Id given in the Amazon Developer portal: " productid
    echo ""
    read -r -p "Enter the Client Id given in the Amazon Developer portal: " clientid
    echo ""
    read -r -p "Enter the Client Secret given in the Amazon Developer portal: " clientsecret
    echo ""

    ProductID=$productid
    ClientID=$clientid
    ClientSecret=$clientsecret
    #-------------------------------------------------------
    # Pre-populated for testing. Feel free to change.
    #-------------------------------------------------------
    # Your Country. Must be 2 characters!
    Country='US'
    # Your state. Must be 2 or more characters.
    State='WA'
    # Your city. Cannot be blank.
    City='SEATTLE'
    # Your organization name/company name. Cannot be blank.
    Organization='AVS_USER'
    # Your device serial number. Cannot be blank, but can be any combination of characters.
    DeviceSerialNumber='123456789'
    # Your KeyStorePassword. We recommend leaving this blank for testing.
    KeyStorePassword=''
    Credential=""
    get_credential()
    {
      Credential=""
      read -p ">> " Credential
      while [ "${#Credential}" -lt "$1" ]; do
        echo "Input has invalid length."
        echo "Please try again."
        read -p ">> " Credential
      done
    }

    check_credentials()
    {
      clear
      echo "======Verifying AVS Credentials======"
      echo ""
      if [ "${#ProductID}" -eq 0 ] || [ "${#ClientID}" -eq 0 ] || [ "${#ClientSecret}" -eq 0 ]; then
        echo "At least one of the needed credentials (ProductID, ClientID or ClientSecret) is missing."
        echo ""
        echo ""
        echo "These values can be found here https://developer.amazon.com/edw/home.html, fix this now?"
        echo ""
        echo ""
        parse_user_input 1 0 1
      fi

      # Print out of variables and validate user inputs
      if [ "${#ProductID}" -ge 1 ] && [ "${#ClientID}" -ge 15 ] && [ "${#ClientSecret}" -ge 15 ]; then
        echo "ProductID >> $ProductID"
        echo "ClientID >> $ClientID"
        echo "ClientSecret >> $ClientSecret"
        echo ""
        echo ""
        echo "Is this information correct?"
        echo ""
        echo ""
        parse_user_input 1 1 0
        USER_RESPONSE=$?
        if [ "$USER_RESPONSE" = "$YES_ANSWER" ]; then
          return
        fi
      fi

      clear
      # Check ProductID
      NeedUpdate=0
      echo ""
      if [ "${#ProductID}" -eq 0 ]; then
        echo "Your ProductID is not set"
        NeedUpdate=1
      else
        echo "Your ProductID is set to: $ProductID."
        echo "Is this information correct?"
        echo ""
        parse_user_input 1 1 0
        USER_RESPONSE=$?
        if [ "$USER_RESPONSE" = "$NO_ANSWER" ]; then
          NeedUpdate=1
        fi
      fi
      if [ $NeedUpdate -eq 1 ]; then
        echo ""
        echo "This value should match your ProductID (or Device Type ID) entered at https://developer.amazon.com/edw/home.html."
        echo "The information is located under Device Type Info"
        echo "E.g.: RaspberryPi3"
        get_credential 1
        ProductID=$Credential
      fi

      echo "-------------------------------"
      echo "ProductID is set to >> $ProductID"
      echo "-------------------------------"

      # Check ClientID
      NeedUpdate=0
      echo ""
      if [ "${#ClientID}" -eq 0 ]; then
        echo "Your ClientID is not set"
        NeedUpdate=1
      else
        echo "Your ClientID is set to: $ClientID."
        echo "Is this information correct?"
        echo ""
        parse_user_input 1 1 0
        USER_RESPONSE=$?
        if [ "$USER_RESPONSE" = "$NO_ANSWER" ]; then
          NeedUpdate=1
        fi
      fi
      if [ $NeedUpdate -eq 1 ]; then
        echo ""
        echo "Please enter your ClientID."
        echo "This value should match the information at https://developer.amazon.com/edw/home.html."
        echo "The information is located under the 'Security Profile' tab."
        echo "E.g.: amzn1.application-oa2-client.xxxxxxxx"
        get_credential 28
        ClientID=$Credential
      fi

      echo "-------------------------------"
      echo "ClientID is set to >> $ClientID"
      echo "-------------------------------"

      # Check ClientSecret
      NeedUpdate=0
      echo ""
      if [ "${#ClientSecret}" -eq 0 ]; then
        echo "Your ClientSecret is not set"
        NeedUpdate=1
      else
        echo "Your ClientSecret is set to: $ClientSecret."
        echo "Is this information correct?"
        echo ""
        parse_user_input 1 1 0
        USER_RESPONSE=$?
        if [ "$USER_RESPONSE" = "$NO_ANSWER" ]; then
          NeedUpdate=1
        fi
      fi
      if [ $NeedUpdate -eq 1 ]; then
        echo ""
        echo "Please enter your ClientSecret."
        echo "This value should match the information at https://developer.amazon.com/edw/home.html."
        echo "The information is located under the 'Security Profile' tab."
        echo "E.g.: fxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxa"
        get_credential 20
        ClientSecret=$Credential
      fi

      echo "-------------------------------"
      echo "ClientSecret is set to >> $ClientSecret"
      echo "-------------------------------"

      check_credentials
    }

    use_template()
    {
      Template_Loc=$1
      Template_Name=$2
      Target_Name=$3
      while IFS='' read -r line || [[ -n "$line" ]]; do
        while [[ "$line" =~ (\$\{[a-zA-Z_][a-zA-Z_0-9]*\}) ]]; do
          LHS=${BASH_REMATCH[1]}
          RHS="$(eval echo "\"$LHS\"")"
          line=${line//$LHS/$RHS}
        done
        echo "$line" >> "$Template_Loc/$Target_Name"
      done < "$Template_Loc/$Template_Name"
    }

    get_alpn_version()
    {
      Java_Version=`java -version 2>&1 | awk 'NR==1{ gsub(/"/,""); print $3 }'`
      echo "java version: $Java_Version "
      Java_Major_Version=$(echo $Java_Version | cut -d '_' -f 1)
      Java_Minor_Version=$(echo $Java_Version | cut -d '_' -f 2)
      echo "major version: $Java_Major_Version minor version: $Java_Minor_Version"

      Alpn_Version=""
      if [ "$Java_Major_Version" = "1.8.0" ] && [ "$Java_Minor_Version" -gt 59 ]; then
        if [ "$Java_Minor_Version" -gt 120 ]; then
          Alpn_Version="8.1.11.v20170118"
        elif [ "$Java_Minor_Version" -gt 111 ]; then
          Alpn_Version="8.1.10.v20161026"
        elif [ "$Java_Minor_Version" -gt 100 ]; then
          Alpn_Version="8.1.9.v20160720"
        elif [ "$Java_Version" == "1.8.0_92" ]; then
          Alpn_Version="8.1.8.v20160420"
        elif [ "$Java_Minor_Version" -gt 70 ]; then
          Alpn_Version="8.1.7.v20160121"
        elif [[ $Java_Version ==  "1.8.0_66" ]]; then
          Alpn_Version="8.1.6.v20151105"
        elif [[ $Java_Version ==  "1.8.0_65" ]]; then
          Alpn_Version="8.1.6.v20151105"
        elif [[ $Java_Version ==  "1.8.0_60" ]]; then
          Alpn_Version="8.1.5.v20150921"
        fi
      else
        echo "Unsupported or unknown java version ($Java_Version), defaulting to latest known ALPN."
        Echo "Check http://www.eclipse.org/jetty/documentation/current/alpn-chapter.html#alpn-versions to get the alpn version matching your JDK version."
        read -t 10 -p "Hit ENTER or wait ten seconds"
      fi
    }

    if [ "$ProductID" = "YOUR_PRODUCT_ID_HERE" ]; then
      ProductID=""
    fi
    if [ "$ClientID" = "YOUR_CLIENT_ID_HERE" ]; then
      ClientID=""
    fi
    if [ "$ClientSecret" = "YOUR_CLIENT_SECRET_HERE" ]; then
      ClientSecret=""
    fi

    check_credentials
    # Preconfigured variables
    OS=rpi
    User=$(id -un)
    Group=$(id -gn)
    Origin=/home/pi/alexa-avs-sample-app
    Samples_Loc=$Origin/samples
    Java_Client_Loc=$Samples_Loc/javaclient
    Wake_Word_Agent_Loc=$Samples_Loc/wakeWordAgent
    Companion_Service_Loc=$Samples_Loc/companionService
    Kitt_Ai_Loc=$Wake_Word_Agent_Loc/kitt_ai
    Sensory_Loc=$Wake_Word_Agent_Loc/sensory
    External_Loc=$Wake_Word_Agent_Loc/ext
    Locale="en-US"

    mkdir $Kitt_Ai_Loc
    mkdir $Sensory_Loc
    mkdir $External_Loc


    # Select a Locale
    clear
    echo "==== Setting Locale ====="
    echo ""
    echo ""
    echo "Which locale would you like to use?"
    echo ""
    echo ""
    echo "======================================================="
    echo ""
    echo ""
    select_option Locale "en-US" "en-GB" "de-DE" "en-CA" "en-IN" "ja-JP"

    Wake_Word_Detection_Enabled="true"

    echo ""
    echo ""
    echo "==============================================="
    echo " Making sure we are installing to the right OS"
    echo "==============================================="
    echo ""
    echo ""
    echo "=========== Installing Oracle Java8 ==========="
    echo ""
    echo ""
    echo "========== Installing Java Dependency ============"
    sudo apt-get install dirmngr -y
    echo oracle-java8-installer shared/accepted-oracle-license-v1-1 select true | sudo /usr/bin/debconf-set-selections
    chmod +x $Java_Client_Loc/install-java8.sh
    cd $Java_Client_Loc && bash ./install-java8.sh
    cd $Origin

    echo ""
    echo ""
    echo "==============================="
    echo "*******************************"
    echo " *** STARTING Alexa Installation ***"
    echo "  ** Grab a Coffee or Beer and relax this will take quite a while**"
    echo "   *************************"
    echo "   ========================="
    echo ""
    echo ""

    # Install dependencies


    echo "========== Getting the code for Kitt-Ai ==========="
    cd $Kitt_Ai_Loc
    git clone https://github.com/Kitt-AI/snowboy.git

    echo "========== Getting the code for Sensory ==========="
    cd $Sensory_Loc
    git clone https://github.com/Sensory/alexa-rpi.git

    cd $Origin

    echo "========== Installing Libraries for Kitt-Ai and Sensory: ALSA, Atlas ==========="
    sudo apt-get -y install libasound2-dev
    sudo apt-get -y install libatlas-base-dev
    sudo ldconfig

    echo "========== Installing WiringPi ==========="
    sudo apt-get -y install wiringpi
    sudo ldconfig

    echo "========== Installing VLC and associated Environmental Variables =========="
    sudo apt-get install -y vlc vlc-nox vlc-data
    #Make sure that the libraries can be found
    sudo sh -c "echo \"/usr/lib/vlc\" >> /etc/ld.so.conf.d/vlc_lib.conf"
    sudo sh -c "echo \"VLC_PLUGIN_PATH=\"/usr/lib/vlc/plugin\"\" >> /etc/environment"

    # Create a libvlc soft link if doesn't exist
    if ! ldconfig -p | grep "libvlc.so "; then
      [ -e $Java_Client_Loc/lib ] || mkdir $Java_Client_Loc/lib
      if ! [ -e $Java_Client_Loc/lib/libvlc.so ]; then
        Target_Lib=`ldconfig -p | grep libvlc.so | sort | tail -n 1 | rev | cut -d " " -f 1 | rev`
        ln -s $Target_Lib $Java_Client_Loc/lib/libvlc.so
      fi
    fi

    sudo ldconfig

    echo "========== Installing NodeJS =========="
    sudo apt-get install -y nodejs npm build-essential
    sudo ln -s /usr/bin/nodejs /usr/bin/node
    node -v
    sudo ldconfig

    echo "========== Installing Maven =========="
    sudo apt-get install -y maven
    mvn -version
    sudo ldconfig

    echo "========== Installing OpenSSL and Generating Self-Signed Certificates =========="
    sudo apt-get install -y openssl
    sudo ldconfig

    echo "========== Downloading and Building Port Audio Library needed for Kitt-Ai Snowboy =========="
    cd $Kitt_Ai_Loc/snowboy/examples/C++
    bash ./install_portaudio.sh
    sudo ldconfig
    cd $Kitt_Ai_Loc/snowboy/examples/C++
    make -j4
    sudo ldconfig
    cd $Origin

    echo "========== Generating ssl.cnf =========="
    if [ -f $Java_Client_Loc/ssl.cnf ]; then
      rm $Java_Client_Loc/ssl.cnf
    fi
    use_template $Java_Client_Loc template_ssl_cnf ssl.cnf

    echo "========== Generating generate.sh =========="
    if [ -f $Java_Client_Loc/generate.sh ]; then
      rm $Java_Client_Loc/generate.sh
    fi
    use_template $Java_Client_Loc template_generate_sh generate.sh

    echo "========== Executing generate.sh =========="
    chmod +x $Java_Client_Loc/generate.sh
    cd $Java_Client_Loc && bash ./generate.sh
    cd $Origin

    echo "========== Configuring Companion Service =========="
    if [ -f $Companion_Service_Loc/config.js ]; then
      rm $Companion_Service_Loc/config.js
    fi
    use_template $Companion_Service_Loc template_config_js config.js

    echo "========== Configuring Java Client =========="
    if [ -f $Java_Client_Loc/config.json ]; then
      rm $Java_Client_Loc/config.json
    fi
    use_template $Java_Client_Loc template_config_json config.json

    echo "========== Installing CMake =========="
    sudo apt-get install -y cmake
    sudo ldconfig

    echo "========== Installing Java Client =========="
    if [ -f $Java_Client_Loc/pom.xml ]; then
      rm $Java_Client_Loc/pom.xml
    fi

    get_alpn_version

    cp $Java_Client_Loc/pom_pi.xml $Java_Client_Loc/pom.xml

    sed -i "s/The latest version of alpn-boot that supports .*/The latest version of alpn-boot that supports JDK $Java_Version -->/" $Java_Client_Loc/pom.xml
    sed -i "s:<alpn-boot.version>.*</alpn-boot.version>:<alpn-boot.version>$Alpn_Version</alpn-boot.version>:" $Java_Client_Loc/pom.xml

    cd $Java_Client_Loc && mvn validate && mvn install && cd $Origin

    echo "========== Installing Companion Service =========="
    cd $Companion_Service_Loc && npm install && cd $Origin

    if [ "$Wake_Word_Detection_Enabled" = "true" ]; then
      echo "========== Preparing External dependencies for Wake Word Agent =========="
      mkdir $External_Loc/include
      mkdir $External_Loc/lib
      mkdir $External_Loc/resources

      cp $Kitt_Ai_Loc/snowboy/include/snowboy-detect.h $External_Loc/include/snowboy-detect.h
      cp $Kitt_Ai_Loc/snowboy/examples/C++/portaudio/install/include/portaudio.h $External_Loc/include/portaudio.h
      cp $Kitt_Ai_Loc/snowboy/examples/C++/portaudio/install/include/pa_ringbuffer.h $External_Loc/include/pa_ringbuffer.h
      cp $Kitt_Ai_Loc/snowboy/examples/C++/portaudio/install/include/pa_util.h $External_Loc/include/pa_util.h
      cp $Kitt_Ai_Loc/snowboy/lib/$OS/libsnowboy-detect.a $External_Loc/lib/libsnowboy-detect.a
      cp $Kitt_Ai_Loc/snowboy/examples/C++/portaudio/install/lib/libportaudio.a $External_Loc/lib/libportaudio.a
      cp $Kitt_Ai_Loc/snowboy/resources/common.res $External_Loc/resources/common.res
      cp $Kitt_Ai_Loc/snowboy/resources/alexa/alexa-avs-sample-app/alexa.umdl $External_Loc/resources/alexa.umdl

      sudo ln -s /usr/lib/atlas-base/atlas/libblas.so.3 $External_Loc/lib/libblas.so.3

      $Sensory_Loc/alexa-rpi/bin/sdk-license file $Sensory_Loc/alexa-rpi/config/license-key.txt $Sensory_Loc/alexa-rpi/lib/libsnsr.a $Sensory_Loc/alexa-rpi/models/spot-alexa-rpi-20500.snsr $Sensory_Loc/alexa-rpi/models/spot-alexa-rpi-21000.snsr $Sensory_Loc/alexa-rpi/models/spot-alexa-rpi-31000.snsr
      cp $Sensory_Loc/alexa-rpi/include/snsr.h $External_Loc/include/snsr.h
      cp $Sensory_Loc/alexa-rpi/lib/libsnsr.a $External_Loc/lib/libsnsr.a
      cp $Sensory_Loc/alexa-rpi/models/spot-alexa-rpi-31000.snsr $External_Loc/resources/spot-alexa-rpi.snsr

      mkdir $Wake_Word_Agent_Loc/tst/ext
      cp -R $External_Loc/* $Wake_Word_Agent_Loc/tst/ext
      cd $Origin

      echo "========== Compiling Wake Word Agent =========="
      cd $Wake_Word_Agent_Loc/src && cmake . && make -j4
      cd $Wake_Word_Agent_Loc/tst && cmake . && make -j4
    fi

    chown -R $User:$Group $Origin
    chown -R $User:$Group /home/$User/.asoundrc

    cd $Origin
    cd /home/pi/
    sudo apt-get install npm -y
    echo ""
    echo '============================='
    echo '*****************************'
    echo '========= Finished Installing Alexa =========='
    echo '*****************************'
    echo '============================='
    echo ""
    Number_Terminals=2
    if [ "$Wake_Word_Detection_Enabled" = "true" ]; then
      Number_Terminals=3
    fi
    echo "Have you downloaded the credentials file, and placed it in /home/pi/ directory?"
    parse_user_input 1 1 0
    USER_RESPONSE=$?
    if [ "$USER_RESPONSE" = "$YES_ANSWER" ]; then
      echo "=============Starting Google Assistant Installer============="
      git clone https://github.com/shivasiddharth/GassistPi -b Gassistant-RPi
      if [[ "$(uname -m)" == "armv7l" ]] ; then
        sudo chmod +x /home/pi/Assistants-Pi/scripts/gassist-installer-pi3.sh
        sudo /home/pi/Assistants-Pi/scripts/gassist-installer-pi3.sh
      else
        sudo chmod +x /home/pi/Assistants-Pi/scripts/gassist-installer-pi-zero.sh
        sudo /home/pi/Assistants-Pi/scripts/gassist-installer-pi-zero.sh
      fi
      sudo apt-get install npm -y
      echo ""
      echo "Finished installing Google Assistant....."
    elif ["$USER_RESPONSE" = "$NO_ANSWER" ]; then
      echo "Download the credentials file, , place it in /home/pi/ directory and start the installer again.."
      exit
    fi

    echo ""
    echo ""
    echo "================Run the Alexa demo to authenticate============"
    echo "To run the demo, do the following in $Number_Terminals seperate terminals:"
    echo "Run the companion service: cd $Companion_Service_Loc && sudo npm start"
    echo "Run the AVS Java Client: cd $Java_Client_Loc && sudo mvn exec:exec"
    if [ "$Wake_Word_Detection_Enabled" = "true" ]; then
      echo "Run the wake word agent: "
      echo "  KITT_AI: cd $Wake_Word_Agent_Loc/src && sudo ./wakeWordAgent -e kitt_ai"
    fi
    echo ""
    echo ""
    echo "===============Run Google Assistant demo==========="
    echo "To run the google assistant demo"
    echo "Open a new terminal and execute: "
    echo "source env/bin/activate"
    echo "Test the installed google assistant using the following syntax. Replace 'project-id' and 'model-id'with your respective ids "
    echo ""
    echo "=============================For Pi 2B and Pi 3B======================================"
    echo "googlesamples-assistant-hotword --project_id 'project-id' --device_model_id 'model-id'"
    echo ""
    echo "=================================For Pi Zero=========================================="
    echo "googlesamples-assistant-pushtotalk --project_id 'project-id' --device_model_id 'project-id'"
    echo ""
    echo "After that, proceed to step-9 mentioned in the README doc to set the assitsants to auto start on boot."
    exit
    ;;
esac