install.sh

#!/bin/bash

# TODO: Add Nginx support
# TODO: Create log folder /var/log/open-cr
# use `fuser -k 8080/tcp` to kill the process on port 8080 

# Open-CR CONSTANTS
CLAVE_ADDRESS=localhost
CLAVE_PORT=5777
CLAVE_CERT_DIR=/tmp/
CLAVE_INSTALL_DIR=/var/local/Open-CR/
CLAVE_SECRET="$(head -c 48 /dev/urandom | base64)"
CLAVE_MODULE_DIR=${CLAVE_INSTALL_DIR}/backend/modules/

# CouchDB CONSTANTS
INSTALL_COUCHDB=true

COUCHDB_USER=admin
COUCHDB_ADDRESS=localhost
COUCHDB_PORT=5984
COUCHDB_PASS="$(head -c 48 /dev/urandom | base64)" # Create a randomized password for the CouchDB server

COUCHDB_DIR_ARCH=/etc/couchdb/
COUCHDB_DIR_DEB=/opt/couchdb/etc/
COUCHDB_DIR_RASP=/home/couchdb/etc/

if [ ! -d "$CLAVE_INSTALL_DIR" ]; then
    mkdir $CLAVE_INSTALL_DIR
fi

# Configure CouchDB
if [ $INSTALL_COUCHDB == "true" ]; then
    printf "**** Configuring CouchDB ****\n\n"

    # Set Local variables
    couchdb_dir=""
    couchdb_installed=false

    # Configure CouchDB depending on OS
    OS="$(cat /etc/os-release | grep ^NAME | sed 's/NAME=//g' | sed 's/"//g')"

    if [ "$OS" == "Arch Linux" ]; then
        # Check if CouchDB is installed
        if [ ! -d $COUCHDB_DIR_ARCH ]; then
            printf "**** Installing CouchDB ****\n\n"
            sudo pacman -Sy couchdb
        fi

        couchdb_dir=$COUCHDB_DIR_ARCH

        couchdb_installed=true
    elif [ "$OS" == "Ubuntu" ] || [ "$OS" == "Debian GNU/Linux" ]; then
        if [ ! -d $COUCHDB_DIR_DEB ]; then
            "**** Installing CouchDB ****\n\n"
            curl -L https://couchdb.apache.org/repo/bintray-pubkey.asc | sudo apt-key add -
            echo "deb https://apache.bintray.com/couchdb-deb focal main" | sudo tee -a /etc/apt/sources.list

            sudo apt update && sudo apt install couchdb
        fi

        couchdb_dir=$COUCHDB_DIR_DEB

        couchdb_installed=true
    elif [ "$OS" == "Raspbian GNU/Linux" ]; then
        if [ ! -d $COUCHDB_DIR_RASP ]; then
            # Install CouchDB
            sudo ./CouchDB.sh
        fi

        couchdb_dir=$COUCHDB_DIR_RASP
        sudo cp ./configuration/couchdb.service /lib/systemd/system/

        couchdb_installed=true
    fi

    if [ $couchdb_installed == "true" ]; then
        printf "${COUCHDB_USER} = ${COUCHDB_PASS}" | sudo tee -a $couchdb_dir/local.ini > /dev/null

        # Create log file directory
        if [ ! -d "/var/log/couchdb/" ]; then
            mkdir /var/log/couchdb/
        fi

        sudo chown couchdb:couchdb /var/log/couchdb

        # Enable CouchDB as a service
        sudo systemctl daemon-reload
        sudo systemctl enable couchdb.service
        sudo systemctl start couchdb.service
    else
        printf "Your Operating System is currently Unsupported. Please Install CouchDB Manually"
        printf "Follow the same instructions found in the README regarding pre-installed CouchDB"

        exit  # Exit the installation so user can install CouchDB
    fi
fi

# Save the backend configuration
cp ./configuration/backend.env.json ./backend/.env.json

sed -i "s|\$CLAVE_ADDRESS|$CLAVE_ADDRESS|" ./backend/.env.json
sed -i "s|\$CLAVE_PORT|$CLAVE_PORT|" ./backend/.env.json
sed -i "s|\$CLAVE_CERT_DIR|$CLAVE_CERT_DIR|" ./backend/.env.json
sed -i "s|\$CLAVE_SECRET|$CLAVE_SECRET|" ./backend/.env.json
sed -i "s|\$MODULE_DIR|$CLAVE_MODULE_DIR|" ./backend/.env.json

sed -i "s|\$DB_USER|$COUCHDB_USER|" ./backend/.env.json
sed -i "s|\$DB_PASS|$COUCHDB_PASS|" ./backend/.env.json
sed -i "s|\$DB_PORT|$COUCHDB_PORT|" ./backend/.env.json
sed -i "s|\$DB_ADDRESS|$COUCHDB_ADDRESS|" ./backend/.env.json

# Save the frontend configuration
cp ./configuration/frontend.env ./frontend/.env

sed -i "s|\$CLAVE_ADDRESS|$CLAVE_ADDRESS|" ./frontend/.env
sed -i "s|\$CLAVE_PORT|$CLAVE_PORT|" ./frontend/.env

# Python Dependencies installation
sudo pip3 install -r ./requirements.txt

# Frontend Dependencies
cd frontend && npm install && cd ..

# TODO: Build the frontend portion and export it instead of the code

# TODO: Generate a server certificate so connections are secured

# # Move website files and folders to installation location
# sudo cp -r ./backend/ $INSTALL_DIR
# sudo cp -r ./frontend/ $INSTALL_DIR

# # Configure Gunicorn
# sudo rm /etc/systemd/system/gunicorn.service
# sudo cp ./configuration/gunicorn.service && sed -i "s|\$INSTALL_DIR|$INSTALL_DIR|" ./gunicorn.service
# sudo mv ./gunicorn.service /etc/systemd/system/

# # Enable and Run Gunicorn
# sudo systemctl enable gunicorn.service
# sudo systemctl start gunicorn.service

# Finished!
printf "\n\n******* Installion Finished!! Please Restart Your System for Open-CR to Run! *******\n\n"