#!/bin/bash

#       _         _        __  __             _   _
#      / \  _   _| |_ ___ |  \/  | __ _ _   _| |_(_) ___
#     / _ \| | | | __/ _ \| |\/| |/ _` | | | | __| |/ __|
#    / ___ \ |_| | || (_) | |  | | (_| | |_| | |_| | (__
#   /_/   \_\__,_|\__\___/|_|  |_|\__,_|\__,_|\__|_|\___|
#
#   Fully Automatic Mautic 5.2.1 installer with SSL cert.
#
# This Bash script is a one-command Mautic installer for people capable of launching a VPS
# and running some basic commands in it but without the need for actual Linux Knowledge requirements.
#
# This particular file is intended for documentation.
# There is an optimized verion of this dockerfile without comments.
# The production script is usually stripped of most comments, todo list, etc. but in this version
# for GitHub I keep (or add) very verbose comments and some extra sections.
#
# Intended uses:
# - A simple way to test Mautic with one single copy and paste command.
# - A live overview of Mautic requirements.
# - A starting point for Mautic code exploration and tinkering.
# - A way to learn about Bash Scripting.
#
# It is NOT meant as a production ready image.
#
# If you have any ideas how to make it clearer or simpler, please send me an email, submit a PR or an Issue.
# Also consider checking these other repos:
# KISSmauticDKR for a one-container, all-in-one Dockerfile, Docker Imagecontaining everything needed to run Mautic.
#
# While Ubuntu 24.04 is the only OS supported by this Script, you should be able to run it on other Debian-based distros.
#
# All the files for this dockerfile are on this GitHub repository:
# https://github.com/Martech-WorkShop/AutoMautic
#
#
#
#     This script installs the following components:
#
#      - Apache 2.4 http web server
#      - PHP 8.2 FPM with all the required packages
#      - Maria DB 11.4 LTS
#      - Mautic 5.2.1
#      - Snap daemon
#      - Certbot
#
#      It will also install an SSL cert and configure your Apache2 web server to use this certificate.



###--------------------------------###
###           To Do List           ###
###--------------------------------###

# TODO: Implement usage statistics
#   Option 1: Use ssmtp to send install statistics.
#   Option 2: Create an API endpoint and send data via curl.
#
# TODO:  Improve MySQL root password generation and handling
#   Current method: MYSQL_PASSWORD=\$(cat /dev/urandom | tr -dc '...' | head -c32)
#   Improvements:
#       a) Allow user to type a password.
#       b) Allow user to generate a random pasword.
#       c) Automatically use a robust random password generator (e.g., openssl rand).
#
#   In all cases:
#       - Store the generated password securely (e.g., in a temporary file or environment variable).
#       - Avoid using the root MySQL user directly for Mautic; create a dedicated user with limited privileges.
#
# TODO: Investigate and handle kernel version-related reboot issue
#   Problem: Script sometimes prompts for a reboot due to kernel version changes.
#   Solution:  Determine the exact conditions causing the reboot prompt and implement appropriate handling (e.g., conditional reboot, restarting specific services instead of the entire system).
#
# ToDo: Add user imput for the email to be used for the Let's Encrypt notifications.
#
# ToDo: Send email containing the installation information.
# Ask the user if he wants to be sent an email witht hat information.
# Ask the user if he wants to be notified of new versions.
# Ask the user if he wants to subscribe to the newsletter.

# info: Switch to mpm prefork for package libapache2-mod-php8.2
# Module mpm_event disabled.
# Enabling module mpm_prefork.
# info: Executing deferred 'a2enmod php8.2' for package libapache2-mod-php8.2

# Processing triggers for libc-bin (2.39-0ubuntu8.3) ...
# Scalar found where operator expected (Missing operator before "$nrconf"?) at (eval 12) line 237, near "'a'
# $nrconf"
# Error parsing /etc/needrestart/needrestart.conf: syntax error at (eval 12) line 237, near "'a'
# $nrconf"
# Execution of (eval 12) aborted due to compilation errors.

# mysql: Deprecated program name. It will be removed in a future release, use '/usr/bin/mariadb' instead

### Get files from toolBelt.

# wget https://files.mktg.dev/pub/install-mautic/m5-tuto-basic.conf.txt -O /etc/apache2/sites-available/000-default.conf
# todo: Change this to the proper AutoMautic directory #wget https://mauteam.org/wp-content/uploads/2019/10/000-default.txt -O /etc/apache2/sites-available/000-default.conf

# Link does not exist: wget https://files.mktg.dev/pub/instal-mautic/mautic5-cron-jobs.txt -O /tmp/cron-jobs.txt
# wget https://files.mktg.dev/pub/AutoMautic/m9cronjobs.txt -O /tmp/cron-jobs.txt
# crontab /tmp/cron-jobs.txt
# rm /tmp/cron-jobs.txt

# echo "\n         You will need the following data to complete the Mautic configuration wizard:"
# echo "\n          > > > > >  MAKE A COPY OF THE FOLLOWING DATA SOMEWHERE, DO IT NOW!  < < < < <"
# echo "\n         Database driver: MySQL PDO"
# echo "         Database Host: localhost"
# echo "         Database port: 3306"
# echo "         DB name: mautic"
# echo "         Database Table Prefix: Leave empty"
# echo "         Your MySQL database user is: root"
# echo "         Your MySQL Root Password is: "$MYSQL_PASSWORD
# echo "         Backup existing tables: No"

# Fix garbage text dripping out of the find IP command.
# Force https redirection or ask the user to ad it.


###--------------------------------###
###              Init              ###
###--------------------------------###

# MYSQL_PASSWORD=$(cat /dev/urandom | tr -dc '1234567890abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ#()@' | head -c32)
#rm AutoMautic520.txt
#mkdir -p /etc/needrestart/
#echo "\$nrconf{restart} = 'a'" >> /etc/needrestart/needrestart.conf


###  ---  Define Colors  ---

GREEN='\033[0;32m'
RED='\033[0;31m'
NC='\033[0m'


###  ---  User Variables  ---

MAUTIC_DOMAIN=""
MYSQL_ROOT_PASSWORD=$(openssl rand -base64 32) # Generate secure password
MYSQL_MAUTIC_USER="mautic_user"  # Dedicated user for Mautic
MYSQL_MAUTIC_PASSWORD=$(openssl rand -base64 32) # Generate secure password
CERTBOT_EMAIL=""


###  ---  Stack Variables  ---

MAUTIC_VERSION="5.2.1" # Will get latest version dynamically
PHP_VERSION="8.2"
MARIADB_VERSION="11.2"


###  --- Requirement Variables  ---
REQUIRED_DISK_SPACE=20 # in GB
REQUIRED_RAM=2 # in GB
REQUIRED_VCPUS=2


###--------------------------------###
###          Interactive           ###
###--------------------------------###

clear
banner() {
echo "\n\n\n ${NC}   <<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<-----o----->>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>"
echo "\n\n\n"
echo '''                _         _        __  __             _   _        '''
echo '''               / \  _   _| |_ ___ |  \/  | __ _ _   _| |_(_) ___   '''
echo '''              / _ \| | | | __/ _ \| |\/| |/ _` | | | | __| |/ __|  '''
echo '''             / ___ \ |_| | || (_) | |  | | (_| | |_| | |_| | (__   '''
echo '''            /_/   \_\__,_|\__\___/|_|  |_|\__,_|\__,_|\__|_|\___|  '''
echo "\n"
echo "                       Fully Automatic Mautic 5.2.1 installer with SSL cert."
echo "\n\n"
echo "   <<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<-----o----->>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>"
}
banner
sleep 2
echo "\n\n         Welcome to the AutoMautic installer."
sleep 1
echo "\n\n\n         If you encounter any problems, or have any questions, comments or issues,"
echo "         drop by https://mauteam.org/ and tell us what's on your mind."
sleep 2
echo "\n\n\n         Let's start by updating all the existing packages in the system."
echo "\n\n\n    <<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<-----o----->>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>"
echo "\n\n"
sleep 1
apt update && apt upgrade -y
sleep 1
clear
banner
echo "\n\n"
echo "\n"
echo "\n\n         Now let's check if all the requirements are met..."
echo "\n\n"
echo "\n\n\n    <<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<-----o----->>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>"
sleep 2
echo "\n\n"
echo "\n\n         Are you root?"
[ `whoami` = root ] || exec su -c $0 root

sleep 1
echo "${GREEN}         Yes, you are root."
sleep 1
echo "\n\n${NC}         Is this Ubuntu 24.04?"
sleep 1
. /etc/lsb-release
. /etc/os-release
if [ "$DISTRIB_RELEASE" = "24.04" ]; then
    echo "${GREEN}         Yes, this is Ubuntu" $VERSION"."
else
    echo "${RED}         Only Ubuntu 24.04, is officially supported. You are running" $DISTRIB_DESCRIPTION
    echo "${RED}         You are not running a supported Linux Distro, chances are the install will just fail,"
    echo "${RED}         please consider getting a VPS with Ubuntu 22.04 and starting the process again."
fi
sleep 1
echo "\n\n${NC}         How much free disk space is available on your server?"
FREE_DISK="$(df --output=avail -m / | tail -1)"
GB_DISK=$((FREE_DISK/1000))
sleep 1
echo "         This installation requires a minimum of 20GB of free disk, 30GB or more recommended depending on usage."
sleep 1
echo "         Your server has "$GB_DISK "GB of disk drive available."
if [ $GB_DISK -ge 20 ]; then
    echo "${GREEN}         Yes, you have sufficient disk space available."
else
    echo "${RED}         Your avalable disk space is too scarce, consider getting a larger server."
fi
sleep 1
echo "\n\n${NC}         How many threads or vCPUs does this server have?"
VCPUS=$(nproc)
sleep 1
echo "         This Mautic installation requires a minimum of 2 vCPUs, 3 or more recommended, depending on usage."
sleep 1
echo "         Your server has "$VCPUS "CPU threads available."
if [ $VCPUS -ge 2 ]; then
    echo "${GREEN}         Yes, you have enough vCPU threads available."
else
    echo "${RED}         Your server does not have enough CPU threads available, consider getting a larger server."
fi
sleep 1
echo "\n\n${NC}         How much RAM does this server have?"
ALL_RAM=$(($(getconf _PHYS_PAGES) * $(getconf PAGE_SIZE) / (1024 * 1024000)))
FREE_RAM=$(($(getconf _AVPHYS_PAGES) * $(getconf PAGE_SIZE) / (1024 * 1024000)))
echo "         This Mautic installation requires a minimum of 2 GB of RAM, 4 or more recommended, depending on usage."
sleep 1
echo "         Your server has "$ALL_RAM"GB of RAM available."
sleep 1
echo "         Your server has "$FREE_RAM"GB of free RAM."
if [ $ALL_RAM -ge 2 ]; then
    echo "${GREEN}         Yes, you have enough RAM available."
else
    echo "${RED}         Your server does not have enough RAM available, consider getting a larger server."
fi
sleep 1
echo "\n\n${NC}         Type here below the domain you have prepared for your new Mautic instance,"
echo "         Use the format mautic.yourdomain.com, press ENTER when you are done."
read -p "         https://" MAUTIC_DOMAIN
echo
echo "         Does your DNS A record point at the IP of this server?"
DIG_DOMAIN="$(dig +short $MAUTIC_DOMAIN)"
sleep 1
echo "         The DNS A record for" $MAUTIC_DOMAIN "points to the IP:"  $DIG_DOMAIN
sleep 1
LOCAL_IP="$(curl -s http://whatismyip.akamai.com/)"
# curl -s ipinfo.io | grep -Po 'ip[^0-9]*"\K[^"]*')"
echo "         This server's IP is: "$LOCAL_IP
sleep 1
if [ "$DIG_DOMAIN" = "$LOCAL_IP" ]; then
    echo "${GREEN}         Yes, the DNS A record for "$MAUTIC_DOMAIN "points to this server's IP."
else
    echo "${RED}         This server's IP does NOT coincide with the IP reported by the DNS A record for domain "$MAUTIC_DOMAIN
    echo "${RED}         That mismatch, can prevent this script from creating and installing an SSL certificate."
    echo "${RED}         Some domains require an https conection in order to work, in that case, you won't be able to have"
    echo "${RED}         access to your Mautic install without a valid SSL certificate."
    echo "${RED}         I strongly recommend you to setup your DNS first, before trying to install Mautic with the AutoMautic script."
fi
sleep 1
echo "\n\n${NC}    <<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<-----o----->>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>"
echo "\n\n\n         If all the requirements are met, shown in ${GREEN}green${NC}, press ENTER to continue with the installation."
echo "\n\n         If any of the requirements are not met, shown in ${RED}red${NC}, do not proceed with the setup,"
echo "         press CTRL + C to abort the installation process, fix the issue, and start over again."
echo "\n         A failed installation will likely prevent you from successfully running this script in the future."
echo "\n\n    <<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<-----o----->>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>"
read -p " " NOTHING
echo "\n\n         This script installs the following components:"
echo "\n          - Apache 2.4 http web server"
echo "          - PHP 8.2 FPM with all the required packages"
echo "          - Maria DB 11.4 LTS"
echo "          - Mautic 5.1.1"
echo "          - Snap daemon"
echo "          - Certbot"
echo "\n         It will also install an SSL cert and configure your Apache2 web server to use this certificate."
sleep 2
echo "\n\n         Proceeding with the installation..."
echo "\n\n"
sleep 1


###--------------------------------###
###           Installation         ###
###--------------------------------###

### Install pre-requisites.

apt install software-properties-common -y
LC_ALL=C.UTF-8 add-apt-repository ppa:ondrej/php -y
#add-apt-repository ppa:ondrej/php -y
add-apt-repository ppa:ondrej/apache2 -y
curl -LsS https://downloads.mariadb.com/MariaDB/mariadb_repo_setup | sudo bash -s -- --mariadb-server-version=11.4
apt update && apt upgrade -y


### Install Packages.

apt install snapd apache2 mariadb-server curl ntp openssl unzip php-bcmath php-curl php-igbinary php-intl php-mbstring php-xml php8.2 php8.2-imap php8.2-bcmath php8.2-bz2 php8.2-cli php8.2-common php8.2-curl php8.2-gd php8.2-gmp php8.2-igbinary php8.2-intl php8.2-mbstring php8.2-mysql php8.2-readline php8.2-phpdbg php8.2-xml php8.2-zip php8.2-soap php8.2-xmlrpc php8.2-tidy -y
a2enmod php8.2 rewrite


#info: Switch to mpm prefork for package libapache2-mod-php8.2
#Module mpm_event disabled.
#Enabling module mpm_prefork.
#info: Executing deferred 'a2enmod php8.2' for package libapache2-mod-php8.2


#Processing triggers for libc-bin (2.39-0ubuntu8.3) ...
#Scalar found where operator expected (Missing operator before "$nrconf"?) at (eval 12) line 237, near "'a'
#$nrconf"
#Error parsing /etc/needrestart/needrestart.conf: syntax error at (eval 12) line 237, near "'a'
#$nrconf"
#Execution of (eval 12) aborted due to compilation errors.


#mysql: Deprecated program name. It will be removed in a future release, use '/usr/bin/mariadb' instead
#mysql: Deprecated program name. It will be removed in a future release, use '/usr/bin/mariadb' instead
#mysql: Deprecated program name. It will be removed in a future release, use '/usr/bin/mariadb' instead


### Get files from toolBelt.

wget https://files.mktg.dev/pub/install-mautic/m5-tuto-basic.conf.txt -O /etc/apache2/sites-available/000-default.conf
#todo: Change this to the proper AutoMautic directory #wget https://mauteam.org/wp-content/uploads/2019/10/000-default.txt -O /etc/apache2/sites-available/000-default.conf
# Link does not exist: wget https://files.mktg.dev/pub/instal-mautic/mautic5-cron-jobs.txt -O /tmp/cron-jobs.txt
wget https://files.mktg.dev/pub/AutoMautic/m9cronjobs.txt -O /tmp/cron-jobs.txt
crontab /tmp/cron-jobs.txt
rm /tmp/cron-jobs.txt


### Create database.
MYSQL_PASSWORD="rootpassword"
mysql -u root -prootpassword -e "CREATE DATABASE mautic DEFAULT CHARACTER SET utf8 COLLATE utf8_unicode_ci;"
mysql -u root -prootpassword -e "GRANT ALL ON mautic.* TO 'root'@'localhost' IDENTIFIED BY 'rootpassword';"
mysql -u root -prootpassword -e "FLUSH PRIVILEGES;"
cd /var/www/html/


### Configure php.ini.
sed -i 's/memory_limit = 128M/memory_limit = 512M/' /etc/php/8.2/apache2/php.ini
sed -i 's/post_max_size = 8M/post_max_size = 32M/' /etc/php/8.2/apache2/php.ini
sed -i 's/upload_max_filesize = 2M/upload_max_filesize = 32M/' /etc/php/8.2/apache2/php.ini
sed -i 's/max_execution_time = 30/max_execution_time = 60/' /etc/php/8.2/apache2/php.ini
sed -i  's/;date.timezone =/date.timezone = UTC/' /etc/php/8.2/apache2/php.ini
cp /etc/php/8.2/apache2/php.ini /etc/php/8.2/cli/php.ini
update-alternatives --set php /usr/bin/php8.2


### Install Mautic.
wget https://github.com/mautic/mautic/releases/download/5.2.1/5.2.1.zip
unzip 5.2.1.zip
rm 5.2.1.zip

### Set permissions.
find /var/www/html -type d -exec chmod 755 -- {} +; find /var/www/html -type f -exec chmod 644 -- {} +; chown -R www-data:www-data /var/www/html

### Install Certbot and SSL Cert.
service apache2 restart
echo
snap install --classic certbot
certbot --apache -d "$MAUTIC_DOMAIN" --non-interactive --agree-tos --email automautic@mktg.dev


### Finalizing Installation
service apache2 restart
sleep 2
echo "\n\n      Clearing the cache might take a minute or two, please be patient..."
echo "\n\n"
sudo -u www-data php /var/www/html/bin/console cache:clear
wget https://mauteam.org/AutoMautic/bashrc.txt -O ~/.bashrc
wget https://mauteam.org/AutoMautic/hi5.txt -O /usr/local/bin/hi5
# rm -R /var/www/html/var/cache
#find /var/www/html -type d -exec chmod 755 -- {} +; find /var/www/html -type f -exec chmod 644 -- {} +; chown -R www-data:www-data /var/www/html


###--------------------------------###
###          Interactive           ###
###--------------------------------###

bash hi5
sleep 3
clear
banner
echo "\n\n         Thank you for using the AutoMautic Installer, if you encountered any problems, have any questions,"
echo "         comments or issues, drop by https://mauteam.org/autoMautic/ and tell us what's on your mind."
sleep 2
echo "\n         Your Mautic installation is now completed, however you will have need to restart your server / VPS before"
echo "              you can proceed with the Mautic configuration wizard."
sleep 2
echo "         After rebooting the server, use your favorite web browser, and navigate to your Mautic subdomain to complete the setup:"
echo "         https://"$MAUTIC_DOMAIN
sleep 2
echo "\n         You will need the following data to complete the Mautic configuration wizard:"
echo "\n          > > > > >  MAKE A COPY OF THE FOLLOWING DATA SOMEWHERE, DO IT NOW!  < < < < <"
echo "\n         Database driver: MySQL PDO"
echo "         Database Host: localhost"
echo "         Database port: 3306"
echo "         DB name: mautic"
echo "         Database Table Prefix: Leave empty"
echo "         Your MySQL database user is: root"
echo "         Your MySQL Root Password is: "$MYSQL_PASSWORD
echo "         Backup existing tables: No"
sleep 2
echo "\n         If you need help with the installation wizard, the steps to complete the Mautic setup are explained here:"
echo "         https://mauteam.org/mautic/mautic-admins/mautic-installation-the-configuration-wizard/"
echo "\n\n    <<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<-----o----->>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>"
echo "\n\n\n         We now have to reboot this server, after the reboot, you can start configuring your new Mautic instance."
echo "\n         When rebooting, your SSH connection will be closed (disconnected), your VPS will take some time to restart,"
echo "         wait a few minutes and you will be able to SSH into your server and log in to Mautic again."
echo "\n\n\n         Press CTRL + C if you do not wish to reboot the server now, but be aware a reboot is required."
echo "\n         Press ENTER when you are ready to reboot the server."
echo "\n\n         Enjoy!"
echo "\n    <<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<-----o----->>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>"
echo
echo
read -p " " NOTHING
reboot