#!/bin/bash

################################################################################s
# Dependencies
# Installs Dependencies automatically
################################################################################

# check if root
if [ $EUID -ne 0 ] ; then
    echo -e "This script must be run as root"
    exit 1
fi

# source vars
source vars

if [[ $user == "" ]] ; then
    echo -e "User missing from vars."
    exit 1
fi
if [[ $projectname == "" ]] ; then
    echo -e "Project Name missing from vars."
    exit 1
fi
if [[ $hostname == "" ]] ; then
    echo -e "Hostname missing from vars."
    exit 1
fi

tput setaf 2
echo -e "Installing dependencies"
tput setaf 9
# create necessary dirs
if [ ! -d $logdir ] ; then
    mkdir $logdir
fi;

# install dependencies
packages=(gcc wget nginx ufw make bzip2 openssl libffi-dev libssl-dev libsqlite3-dev zlib1g-dev libbz2-dev libpq-dev);
echo -e "\tRunning apt update";
apt update 1> $aptlogloc 2>> $aptlogloc 3>> $aptlogloc;
for package in ${packages[@]};
do
    echo -e "\tInstalling $package"
    apt install -y $package 1>> $aptlogloc 2>> $aptlogloc 3>> $aptlogloc
    if [ $? -ne 0 ] ; then
        echo -e "apt failed to install $package. $aptlogmsg"
        exit 1
    fi
done

# firewall
ports=(22 80 443)
for port in ${ports[@]};
do
    echo -e "ufw allow $port/tcp" 1>> $firelogloc 2>> $firelogloc
    ufw allow $port/tcp 1>> $firelogloc 2>> $firelogloc
    if [ $? -ne 0 ] ; then
    	echo -e "\tfirewall failed to update port $port correctly. $firelogmsg"
        exit 1
    fi
done
echo -e "\tEnabling ufw"
ufw --force enable 1>> $firelogloc 2>> $firelogloc

###############################################################################
# Sqlite3
# Download and setup Sqlite3 and modules
################################################################################
tput setaf 2
echo -e "Install Sqlite3"
tput setaf 9

# fetch Sqlite
wget https://sqlite.org/2019/sqlite-autoconf-3280000.tar.gz sqlite.tar.gz 1> $pylogloc 2>> $pylogloc 3>> $pylogloc
if [ $? -ne 0 ] ; then
    echo -e "Failed to fetch sqlite, make sure wget is installed and $pylink is what you're after. $pylogmsg"
    exit 1
fi

tar xf sqlite.tar.xz 1>> $pylogloc 2>> $pylogloc 3>> $pylogloc
if [ $? -ne 0 ] ; then
    echo -e "Failed to unzip sqlite. $pylogmsg"
    exit 1
fi

cd sqlite
if [ $? -ne 0 ] ; then
    echo -e "Something went wrong while unzipping. $pylogmsg"
    exit 1
fi

# install Sqlite3
echo -e "\tConfigure"
./configure 1>> $pylogloc 2>> $pylogloc 3>> $pylogloc
if [ $? -ne 0 ] ; then
    echo -e "./configure failed. $pylogmsg"
    exit 1
fi

echo -e "\tMake"
make 1>> $pylogloc 2>> $pylogloc 3>> $pylogloc
if [ $? -ne 0 ] ; then
    echo -e "make failed. $pylogmsg"
    exit 1
fi

echo -e "\tMake install"
make install 1>> $pylogloc 2>> $pylogloc 3>> $pylogloc
if [ $? -ne 0 ] ; then
    echo -e "make install failed. $pylogmsg"
    exit 1
fi


################################################################################
# Python
# Download and setup Python and modules
################################################################################
tput setaf 2
echo -e "Installing Python"
tput setaf 9

wget $pylink python.tar.gz 1> $pylogloc 2>> $pylogloc 3>> $pylogloc
if [ $? -ne 0 ] ; then
    echo -e "Failed to fetch python, make sure wget is installed and $pylink is what you're after. $pylogmsg"
    exit 1
fi

tar xf python.tar.xz 1>> $pylogloc 2>> $pylogloc 3>> $pylogloc
if [ $? -ne 0 ] ; then
    echo -e "Failed to unzip python. $pylogmsg"
    exit 1
fi

cd python
if [ $? -ne 0 ] ; then
    echo -e "Something went wrong while unzipping. $pylogmsg"
    exit 1
fi

# install Python
echo -e "\tConfigure"
./configure 1>> $pylogloc 2>> $pylogloc 3>> $pylogloc
if [ $? -ne 0 ] ; then
    echo -e "./configure failed. $pylogmsg"
    exit 1
fi

echo -e "\tMake"
make 1>> $pylogloc 2>> $pylogloc 3>> $pylogloc
if [ $? -ne 0 ] ; then
    echo -e "make failed. $pylogmsg"
    exit 1
fi

echo -e "\tMake install"
make install 1>> $pylogloc 2>> $pylogloc 3>> $pylogloc
if [ $? -ne 0 ] ; then
    echo -e "make install failed. $pylogmsg"
    exit 1
fi

# upgrade pip and install virtualenv
echo -e "\tUpgrading pip"
python3 -m pip install --upgrade pip 1>> $pylogloc 2>> $pylogloc 3>> $pylogloc
if [ $? -ne 0 ] ; then
	echo -e "pip upgrade failed. $pylogmsg"
    exit 1
fi
echo -e "\tInstalling virtualenv"
python3 -m pip install virtualenv 1>> $pylogloc 2>> $pylogloc 3>> $pylogloc
if [ $? -ne 0 ] ; then
	echo -e "installing virtualenv failed. $pylogmsg"
    exit 1
fi
cd /root/
rm python.tar.xz 1>> $pylogloc 2>> $pylogloc
rm -rf python 1>> $pylogloc 2>> $pylogloc
if [ $? -ne 0 ] ; then
	echo -e "Failed to remove Python install files. $pylogmsg"
fi

# ################################################################################
# # Django
# # Download, setup and configure Django
# ################################################################################
# tput setaf 2
# echo -e "Starting Django project"
# tput setaf 9

# adduser $user 1> /dev/null 2> /dev/null 3> /dev/null
# if [ ! -d "/home/$user" ] ; then
# 	mkdir /home/$user
#     chown -R $user:$user /home/$user
# fi
# mkdir /home/$user/$projectname
# if [ $? -ne 0 ] ; then
# 	echo -e "Failed to create $projectname directory. $djamsg"
#     exit 1
# fi

# # virtual environment
# echo -e "\tCreating venv"
# cd /home/$user/$projectname
# /usr/src/python37/bin/python3.7 -m virtualenv venv 1>> $djalogloc 2>> $djalogloc 3>> $djalogloc
# if [ $? -ne 0 ] ; then
# 	echo -e "Failed to create virtual environment. $djamsg"
#     exit 1
# fi
# source venv/bin/activate 1>> $djalogloc 2>> $djalogloc 3>> $djalogloc
# if [ $? -ne 0 ] ; then
# 	echo -e "Failed to source virtual environment. $djamsg"
#     exit 1
# fi

# # pip installs
# pips=(django gunicorn psycopg2-binary)
# for pip in ${pips[@]};
# do
#     echo -e "\tInstalling $pip"
#     pip install $pip 1>> $djalogloc 2>> $djalogloc 3>> $djalogloc
#     if [ $? -ne 0 ] ; then
#     	echo -e "Failed to install $pip. $djamsg"
#       exit 1
#     fi
# done

# if [ $usegit = False ] ; then
#     # start django project in the project directory
#     echo -e "\tStarting django project"
#     django-admin startproject config . 1>> $djalogloc 2>> $djalogloc 3>> $djalogloc
#     if [ $? -ne 0 ] ; then
#         echo -e "Failed to start project $projectname with django-admin. $djamsg"
#         exit 1
#     fi

#     # update allowed hosts
#     echo -e "echo -e sed -i 's/ALLOWED_HOSTS = []/ALLOWED_HOSTS = ['localhost', os.environ.get('HOST')'] config/settings.py" >> $djalogloc
#     #        |        FROM        |                          TO                           |
#     sed -i "s/ALLOWED_HOSTS = \[\]/ALLOWED_HOSTS = \['localhost', os.environ.get('HOST')\]/" config/settings.py
#     if [ $? -ne 0 ] ; then
#         echo -e "Failed to change ALLOWED_HOSTS. $djamsg"
#         exit 1
#     fi
#     echo -e "echo -e STATIC_ROOT = os.path.join(BASE_DIR, 'static') >> config//settings.py" >> $djalogloc
#     echo -e "STATIC_ROOT = os.path.join(BASE_DIR, 'static')" >> config/settings.py
#     if [ $? -ne 0 ] ; then
#         echo -e "Failed to append STATIC_ROOT. $djamsg"
#         exit 1
#     fi
# fi

# if [ $usegit = True ] ; then
#     echo -e "\tCloning django project"
#     git init 1>> $gitlogloc 2>> $gitlogloc 3>> $gitlogloc;
#     git remote add origin $giturl 1>> $gitlogloc 2>> $gitlogloc 3>> $gitlogloc;
#     ssh-agent bash -c 'ssh-add $gitkey 1>> $gitlogloc 2>> $gitlogloc 3>> $gitlogloc;
#     git pull origin master 1>> $gitlogloc 2>> $gitlogloc 3>> $gitlogloc;'
#     echo -e "\tInstalling pip requirements"
#     pip install -r requirements.txt 1>> $gitlogloc 2>> $gitlogloc 3>> $gitlogloc
# fi

# # collect static, migrate
# echo -e "\tCollecting static"
# python manage.py collectstatic 1>> $djalogloc 2>> $djalogloc 3>> $djalogloc
# if [ $? -ne 0 ] ; then
# 	echo -e "Failed to collect static files. $djamsg"
#     exit 1
# fi
# echo -e "\tMaking migrations"
# python manage.py makemigrations 1>> $djalogloc 2>> $djalogloc 3>> $djalogloc
# if [ $? -ne 0 ] ; then
# 	echo -e "Failed to make migrations. $djamsg"
#     exit 1
# fi
# echo -e "\tMigrating"
# python manage.py migrate 1>> $djalogloc 2>> $djalogloc 3>> $djalogloc
# if [ $? -ne 0 ] ; then
# 	echo -e "Failed to migrate. You do not survive the winter. $djamsg"
#     exit 1
# fi
# deactivate
# if [ $? -ne 0 ] ; then
# 	echo -e "Failed to deactivate virtual environment, (this may not be an issue). $djamsg"
# fi
# chown -R $user:$user .
# if [ $? -ne 0 ] ; then
# 	echo -e "Failed to change permissions of $projectname. $djamsg"
#     exit 1
# fi

# ################################################################################
# # Gunicorn
# # configure gunicorn.conf file
# ################################################################################
# tput setaf 2
# echo -e "Setting up gunicorn"
# tput setaf 9
# echo -e "
# [Unit]
# Description=gunicorn daemon
# After=network.target

# [Service]
# User=$user
# Group=www-data
# WorkingDirectory=/home/$user/$projectname
# ExecStart=/home/$user/$projectname/venv/bin/gunicorn --workers 3 --bind unix:/home/$user/$projectname/$projectname.sock config.wsgi:application
# Environment=HOST=$hostname

# [Install]
# WantedBy=multi-user.target" > /etc/systemd/system/gunicorn.service
# echo -e "\tStarting gunicorn"
# systemctl daemon-reload > $gunicornlogloc
# systemctl start gunicorn >> $gunicornlogloc
# systemctl status gunicorn >> $gunicornlogloc
# echo -e "\tEnabling gunicorn at startup"
# systemctl enable gunicorn 1>> $gunicornlogloc 2>> $gunicornlogloc

# ################################################################################
# # Nginx
# # configure nginx
# ################################################################################
# tput setaf 2
# echo -e "Configuring Nginx"
# tput setaf 9
# echo -e "
# server {
#     listen 80;
#     server_name $hostname;

#     location = /favicon.ico { access_log off; log_not_found off; }
#     location /static/ {
#         root /home/$user/$projectname;
#     }

#     location / {
#         proxy_set_header Host \$http_host;
#         proxy_set_header X-Real-IP \$remote_addr;
#         proxy_set_header X-Forwarded-For \$proxy_add_x_forwarded_for;
#         proxy_set_header X-Forwarded-Proto \$scheme;
#         proxy_pass http://unix:/home/$user/$projectname/$projectname.sock;
#     }
# }" > /etc/nginx/conf.d/$projectname.conf
# # set the nginx user
# if [ ! $user = "nginx" ] ; then
#     sed -i "s/user nginx/user $user nginx/" /etc/nginx/nginx.conf
# fi
# echo -e "\tStarting nginx"
# systemctl restart nginx >> $nginxlogloc
# systemctl status nginx >> $nginxlogloc
# echo -e "\tEnabling nginx"
# systemctl enable nginx 1>> $nginxlogloc 2>> $nginxlogloc

# tput setaf 2
# echo -e "Done! Navigate to $hostname to access the site. Logs can be found in $logdir"
# tput setaf 9
# exit 0