#!/bin/bash

####################################################################################################
#### author: SlickStack ############################################################################
#### link: https://slickstack.io ###################################################################
#### mirror: https://mirrors.slickstack.io/bash/ss-install.txt #####################################
#### path: /var/www/ss-install #####################################################################
#### destination: n/a (not a boilerplate) ##########################################################
#### purpose: Reinstalls the entire SlickStack LEMP environment and all modules (idempotent) #######
#### module version: Ubuntu 22.04 LTS ##############################################################
#### sourced by: n/a (wget -O ss slick.fyi && bash ss) #############################################
#### bash aliases: ss install ######################################################################
####################################################################################################

## SS-CONFIG MUST BE PROPERLY CONFIGURED AND ON CURRENT BUILD BEFORE RUNNING SS-INSTALL ##
## ENSURE THAT YOUR SS-CONFIG BUILD REMAINS CURRENT BY RUNNING SS-UPDATE-CONFIG ##

####################################################################################################
#### TABLE OF CONTENTS (SS-Install) ################################################################
####################################################################################################

## this is a brief summary of the different code snippets you will find in this script ##
## each section should be commented so you understand what is being accomplished ##

## A. Build Version
## A. Validate SS-Functions
## C. Source SS-Config + SS-Functions (After Validated)
## D. Touch Timestamp File
## C. Verify Environment Compatibility
## D. Check For Any Undefined Options
## E. Retrieve SS-Config Boilerplate
## F. Interactive Bash Setup Wizard (SS-Config)
## G. Activate SS-Config File Generated By Wizard
## H. Retrieve SS-Check
## I. Message (Last Chance To Exit)
## J. Message (Welcome Back If SS-Config Exists)
## K. Source SS-Config (After Setup Wizard Complete)
## L. Run SS-Check
## M. Set Dpkg Default Settings
## N. Upgrade Ubuntu Packages + Linux Kernel

####################################################################################################
#### A. SS-Install: Build Version ##################################################################
####################################################################################################

## this build version ensures compatibility with ss-config boilerplate (on localhost) ##
## it must match the active ss-config build otherwise installing will fail ##

SS_INSTALL_BUILD="JUN2022FF"

####################################################################################################
#### B. SS-Install: Validate SS-Functions ##########################################################
####################################################################################################

## this attempts to restore missing or outdated ss-functions from our public mirrors ##
## we perform this check before ss-install runs and before any cron job tasks ##

## THIS SNIPPET DOES NOT RELY ON SS-CONFIG OR SS-FUNCTIONS
## SNIPPET: ss-install, ss cron jobs
## UPDATED: 31MAY2022

## validate ss-functions ##
VALIDATE_SS_FUNCTIONS=$(grep 'SS_EOF' /var/www/ss-functions 2> /dev/null)
OUTDATED_SS_FUNCTIONS=$(find "/var/www/ss-functions" -mtime 2> /dev/null)
if [[ -z "${VALIDATE_SS_FUNCTIONS}" ]] || [[ -n "${OUTDATED_SS_FUNCTIONS}" ]]; then
    wget --no-check-certificate --no-cache --no-cookies --quiet --inet4-only --tries=30 --timeout=300 --waitretry=15 -O /tmp/ss-functions https://raw.githubusercontent.com/littlebizzy/slickstack/master/bash/ss-functions.txt
    VALIDATE_TMP_SS_FUNCTIONS=$(grep 'SS_EOF' /tmp/ss-functions 2> /dev/null)
    if [[ -n "${VALIDATE_TMP_SS_FUNCTIONS}" ]]; then
        mkdir -p /var/www > /dev/null 2>&1
        mv -f /tmp/ss-functions /var/www/ss-functions
        chown root:root /var/www/ss-functions ## must be root:root
        chmod 0700 /var/www/ss-functions ## 0700 means only root can execute
    else
        wget --no-check-certificate --no-cache --no-cookies --quiet --inet4-only --tries=30 --timeout=300 --waitretry=15 -O /tmp/ss-functions https://gitlab.com/littlebizzy/slickstack/-/raw/master/bash/ss-functions.txt
        VALIDATE_TMP_SS_FUNCTIONS=$(grep 'SS_EOF' /tmp/ss-functions 2> /dev/null)
        if [[ -n "${VALIDATE_TMP_SS_FUNCTIONS}" ]]; then
            mkdir -p /var/www > /dev/null 2>&1
            mv -f /tmp/ss-functions /var/www/ss-functions
            chown root:root /var/www/ss-functions ## must be root:root
            chmod 0700 /var/www/ss-functions ## 0700 means only root can execute
        else
            wget --no-check-certificate --no-cache --no-cookies --quiet --inet4-only --tries=30 --timeout=300 --waitretry=15 -O /tmp/ss-functions https://sourceforge.net/p/slickstack/code/ci/master/tree/bash/ss-functions.txt?format=raw
            mkdir -p /var/www > /dev/null 2>&1
            mv -f /tmp/ss-functions /var/www/ss-functions
            chown root:root /var/www/ss-functions ## must be root:root
            chmod 0700 /var/www/ss-functions ## 0700 means only root can execute
        fi
    fi
fi

####################################################################################################
#### C. SS-Install: Source SS-Config + SS-Functions (After Validated) ##############################
####################################################################################################

## at this point we have restored ss-functions and ss-config may or may not exist yet ##
## so we source ss-functions at this point but conditionally source ss-config ##

## source ss-config (if exists) ##
SS_CONFIG="/var/www/ss-config"
test -f "${SS_CONFIG}" && source "${SS_CONFIG}"

## source ss-functions ##
source /var/www/ss-functions

## BELOW THIS RELIES ON SS-CONFIG AND SS-FUNCTIONS

####################################################################################################
#### D. SS-Install: Touch Timestamp File ###########################################################
####################################################################################################

## this is a dummy timestamp file that will remember the last time this script was run ##
## it can be useful for developer reference and is sometimes used by SlickStack ##

## script timestamp ##
ss_touch "${TIMESTAMP_SS_INSTALL}"

####################################################################################################
#### C. SS-Install: Verify Environment Compatibility ###############################################
####################################################################################################

## never run ss-install unless the build version below matches active ss-config version ##
## in case of emergencies the SlickStack team might purposefully mismatch builds ##

## verify ss-install build matches ss-config (if exists) ##
if [[ -f "/var/www/ss-config" ]] && [[ "${SS_BUILD}" != "${SS_INSTALL_BUILD}" ]]; then 
    echo -e "${COLOR_WARN}ss-install: Please run ss-update-config and then run ss-install again... ${NOCOLOR}"
    exit 1
fi

## verify supported ubuntu version ##
if [[ "${UBUNTU_VERSION}" != @(22.04|20.04|18.04) ]]; then
    echo -e "${COLOR_WARN}Exiting ss-install: SlickStack is designed for Ubuntu LTS (but this VPS is running ${UBUNTU_VERSION})... ${NOCOLOR}"
    exit 1
fi

## REDUCE THIS to be like 500mb or something
## verify at least 5GB free disk space remains ##
# if [[ "${SYSTEM_DISK_FREE}" -lt 5242880 ]]; then ## 10G = 10485760 / 5GB = 5242880
#    echo -e "${COLOR_WARN}Exiting ss-install: It looks like your server has less than 5GB free space available, please upgrade your server and then run ss-install again. ${NOCOLOR}"
#    exit 1
# fi

## very not in docker/lxc container ##
if [[ -f "/.dockerenv" ]] || grep -Eq '(lxc|docker)' /proc/1/cgroup; then 
    echo -e "${COLOR_WARN}Exiting ss-install: It appears your server is running Docker or another container... but SlickStack requires normal Ubuntu LTS without containers. ${NOCOLOR}"
    exit 1
fi

####################################################################################################
#### D. SS-Install: Check For Any Undefined Options ################################################
####################################################################################################

## SNIPPET: ss-install, ss-update-config
## UPDATED: 26MAR2022

## below snippet will warn you and exit if undefined ss-config options are found to exist ##
## this way our team can be aware of bugs and avoid implementing unwanted options ##

## snippet variables ##
SS_CONFIG_OPTION_PLACEHOLDER=$(grep -c '"@' /var/www/ss-config 2> /dev/null)

## verify no placeholders exist ##
if [[ -f "/var/www/ss-config" ]]; then
    if [[ "${SS_CONFIG_OPTION_PLACEHOLDER}" -gt 0 ]]; then
        echo -e ""
        echo -e "${COLOR_WARN}ss-install: Replace all "@..." placeholders in ss-config and try again... ${NOCOLOR}"
        echo -e ""
        exit 1
    fi
fi

####################################################################################################
#### E. SS-Install: Retrieve SS-Config Boilerplate #################################################
####################################################################################################

## here we retrieve the ss-config boilerplate from our public mirrors to begin wizard ##
## in case the first mirror fails to validate our backup mirrors will be tried ##

ss_rm /tmp/ss-config-wizard

## retrieve ss-config boilerplate ##
ss_wget_slowest /tmp/ss-config-wizard "${MIRROR_SS_CONFIG_SAMPLE}"

VALIDATE_TMP_SS_CONFIG=$(grep 'SS_EOF' /tmp/ss-config-wizard 2> /dev/null)

if [[ -z "${VALIDATE_TMP_SS_CONFIG}" ]]; then
    ss_wget_slowest /tmp/ss-config-wizard "${MIRROR2_SS_CONFIG_SAMPLE}"
fi

if [[ -z "${VALIDATE_TMP_SS_CONFIG}" ]]; then
    ss_wget_slowest /tmp/ss-config-wizard "${MIRROR3_SS_CONFIG_SAMPLE}"
fi

####################################################################################################
#### F. SS-Install: Interactive Bash Setup Wizard (SS-Config) ######################################
####################################################################################################

## this basic wizard will allow you to interactively setup your ss-config file options ##
## advanced users can setup ss-config before running ss-install to avoid this ##

## clear screen ##
clear -x

## check build version ##
SS_BUILD_CURRENT=$(source /tmp/ss-config-wizard; echo "${SS_BUILD}" 2> /dev/null)

## intro variables ##
FIRST_LINE="${COLOR_INFO}#### ${LIGHTGRAY}SlickStack build: ${LIGHTGREEN}${SS_BUILD_CURRENT} ${COLOR_INFO}${FILLER}${NOCOLOR}"
FIRST_LINE_TRIM=${FIRST_LINE::120}
SECOND_LINE="${COLOR_INFO}#### ${LIGHTGRAY}Ubuntu (OS) version: ${LIGHTGREEN}${UBUNTU_VERSION} LTS ${COLOR_INFO}${FILLER}${NOCOLOR}"
SECOND_LINE_TRIM=${SECOND_LINE::120}
THIRD_LINE="${COLOR_INFO}#### ${LIGHTGRAY}Server hostname: ${LIGHTGREEN}${SYSTEM_HOSTNAME} ${COLOR_INFO}${FILLER}${NOCOLOR}"
THIRD_LINE_TRIM=${THIRD_LINE::120}
FOURTH_LINE="${COLOR_INFO}#### ${LIGHTGRAY}Virtualization: ${LIGHTGREEN}${SYSTEM_VIRTUAL_UPPERCASE} (for best results use KVM servers) ${COLOR_INFO}${FILLER}${NOCOLOR}"
FOURTH_LINE_TRIM=${FOURTH_LINE::120}
FIFTH_LINE="${COLOR_INFO}#### ${LIGHTGRAY}Disk space: ${LIGHTGREEN}${SYSTEM_DISK_FREE_EASY} free space out of ${SYSTEM_DISK_TOTAL_EASY} total space (${SYSTEM_DISK_USED_PERCENT} currently used) ${COLOR_INFO}${FILLER}${NOCOLOR}"
FIFTH_LINE_TRIM=${FIFTH_LINE::120}
INTRO_SWAPFILE="${COLOR_INFO}#### ${LIGHTGRAY}Swapfile: ${LIGHTGREEN}${SYSTEM_SWAP_TOTAL_FINAL} (will be installed if not exists) ${COLOR_INFO}${FILLER}${NOCOLOR}"
INTRO_SWAPFILE_TRIM=${INTRO_SWAPFILE::120}
INTRO_MEMORY="${COLOR_INFO}#### ${LIGHTGRAY}RAM memory (total): ${LIGHTGREEN}${SYSTEM_RAM_TOTAL} (2GB+ best for WooCommerce and such) ${COLOR_INFO}${FILLER}${NOCOLOR}"
INTRO_MEMORY_TRIM=${INTRO_MEMORY::120}
SIXTH_LINE="${COLOR_INFO}#### ${LIGHTGRAY}vCPU cores: ${LIGHTGREEN}${SYSTEM_CPU_CORES} core(s) ${COLOR_INFO}${FILLER}${NOCOLOR}"
SIXTH_LINE_TRIM=${SIXTH_LINE::120}
EIGHT_LINE="${COLOR_INFO}#### ${LIGHTGRAY}IP Address (IPv4): ${LIGHTGREEN}${SYSTEM_IPV4_ADDRESS} ${COLOR_INFO}${FILLER}${NOCOLOR}"
EIGHT_LINE_TRIM=${EIGHT_LINE::120}
NINE_LINE="${COLOR_INFO}#### ${LIGHTGRAY}IP Address (IPv6): ${LIGHTGREEN}${SYSTEM_IPV6_ADDRESS} ${COLOR_INFO}${FILLER}${NOCOLOR}"
NINE_LINE_TRIM=${NINE_LINE::120}

echo -e "${COLOR_INFO}"
cat << "EOF"
         ___      __        __             __  
   _____/ (_)____/ /_______/ /_____ ______/ /__
  / ___/ / / ___/ //_/ ___/ __/ __ `/ ___/ //_/
 (__  ) / / /__/ ,< (__  ) /_/ /_/ / /__/ ,<   
/____/_/_/\___/_/|_/____/\__/\__,_/\___/_/|_|  
EOF
echo -e "${NOCOLOR}"
if [[ ! -f "/var/www/ss-config" ]]; then

    echo -e "${COLOR_INFO}################################################################################${NOCOLOR}"
    echo -e "${FIRST_LINE_TRIM}"
    echo -e "${SECOND_LINE_TRIM}"
    echo -e "${THIRD_LINE_TRIM}"
    echo -e "${FOURTH_LINE_TRIM}"
    echo -e "${FIFTH_LINE_TRIM}"
    echo -e "${INTRO_MEMORY_TRIM}"
    echo -e "${INTRO_SWAPFILE_TRIM}"
    echo -e "${SIXTH_LINE_TRIM}"
    echo -e "${EIGHT_LINE_TRIM}"
    echo -e "${NINE_LINE_TRIM}"
    echo -e "${COLOR_INFO}################################################################################${NOCOLOR}"
    echo -e ""
    echo -e "${COLOR_WARN}Welcome to SlickStack! It appears that your /var/www/ss-config file has ${NOCOLOR}"
    echo -e "${COLOR_WARN}not been setup yet. Please use the below wizard to configure required ${NOCOLOR}"
  
    wait_time=30 # seconds
    temp_cnt=${wait_time}
    while [[ ${temp_cnt} -gt 0 ]];
    do
        printf "${COLOR_WARN}\roptions, or hit Ctrl+C to cancel and configure it manually: ${LIGHTGRAY}%2d ${NOCOLOR}" ${temp_cnt}
        sleep 1
        ((temp_cnt--))
    done
    echo -e ""
    echo -e ""
    echo -e "${COLOR_INFO}################################################################################${NOCOLOR}"
    echo -e "${COLOR_INFO}#### SlickStack Interactive Setup Wizard (SS-Config) ###########################${NOCOLOR}"
    echo -e "${COLOR_INFO}################################################################################${NOCOLOR}"
    echo -e ""
    
    ## replace root password fields with random strings ##
    sed -i "s/@ROOT_PASSWORD/$(openssl rand -hex 12)/g" /tmp/ss-config-wizard
    sed -i "s/@DB_PASSWORD_ROOT/$(openssl rand -hex 12)/g" /tmp/ss-config-wizard
    
    ## PROMPT: choose sudo username (default = batman) ##
    read -t 300 -p "$(echo -e ${LIGHTGRAY}"Choose sudo username (for SSH):" ${LIGHTGREEN})" -e -i 'batman' ss_var_sudo_user || ss_var_sudo_user=batman
    sed -i "s|@SUDO_USER|${ss_var_sudo_user}|g" /tmp/ss-config-wizard
    
    ## new line ##
    printf "${COLOR_RESET}\n"
    
    ## PROMPT: choose sudo password (default = random) ##
    sudopass_random=$(openssl rand -hex 12)
    read -t 300 -p "$(echo -e ${LIGHTGRAY}"Choose sudo password (should be strong): "${LIGHTGREEN})" -e -i ${sudopass_random} ss_var_sudo_password || ss_var_sudo_password=${sudopass_random}
    sed -i "s|@SUDO_PASSWORD|${ss_var_sudo_password}|g" /tmp/ss-config-wizard
    
    ## new line ##
    printf "${COLOR_RESET}\n"
    
    ## PROMPT: enable SSH keys (default = false) ##
    read -t 300 -p "$(echo -e ${LIGHTGRAY}"Enable SSH keys (advanced users only): "${LIGHTGREEN})" -e -i 'false' ss_var_ssh_keys || ss_var_ssh_keys=false
    sed -i "s|@SSH_KEYS|${ss_var_ssh_keys}|g" /tmp/ss-config-wizard
    
    ## new line ##
    printf "${COLOR_RESET}\n"
    
    ## PROMPT: restrict SSH logins to specific IP address ##
    read -t 300 -p "$(echo -e ${LIGHTGRAY}"Restrict SSH access to specific IP address?: "${LIGHTGREEN})" -e -i 'false' ss_restrict_ssh_ip || ss_restrict_ssh_ip=false
    sed -i "s|@SSH_RESTRICT_IP|${ss_restrict_ssh_ip}|g" /tmp/ss-config-wizard
    
    ## new line ##
    printf "${COLOR_RESET}\n"
    
    ## PROMPT: specify the IP address for SSH login ##
    read -t 300 -p "$(echo -e ${LIGHTGRAY}"Which IP address for SSH logins (ignore if disabled above)?: "${LIGHTGREEN})" -e -i '192.0.2.1' ss_ipv4_ssh_allow || ss_ipv4_ssh_allow=192.0.2.1
    sed -i "s|@SSH_IPV4|${ss_ipv4_ssh_allow}|g" /tmp/ss-config-wizard
    
    ## new line ##
    printf "${COLOR_RESET}\n"
    
    ## PROMPT: choose SFTP username (default = robin) ##
    read -t 300 -p "$(echo -e ${LIGHTGRAY}"Choose SFTP username (limited access): "${LIGHTGREEN})" -e -i 'robin' ss_var_sftp_user || ss_var_sftp_user=robin
    sed -i "s|@SFTP_USER|${ss_var_sftp_user}|g" /tmp/ss-config-wizard
    
    ## new line ##
    printf "${COLOR_RESET}\n"
    
    ## PROMPT: choose SFTP password (default = random) ##
    sftp_pass_random=$(openssl rand -hex 12)
    read -t 300 -p "$(echo -e ${LIGHTGRAY}"Choose SFTP password (should be strong): "${LIGHTGREEN})" -e -i ${sftp_pass_random} ss_var_sftp_password || ss_var_sftp_password=${sftp_pass_random}
    sed -i "s|@SFTP_PASSWORD|${ss_var_sftp_password}|g" /tmp/ss-config-wizard
    
    ## new line ##
    printf "${COLOR_RESET}\n"
    
    ## PROMPT: choose app (default = wordpress) ##
    read -t 300 -p "$(echo -e ${LIGHTGRAY}"Choose app (only wordpress supported currently): "${LIGHTGREEN})" -e -i 'wordpress' ss_var_app_name || ss_var_app_name=wordpress
    sed -i "s|@SS_APP|${ss_var_app_name}|g" /tmp/ss-config-wizard
    
    ## new line ##
    printf "${COLOR_RESET}\n"
    
    ## PROMPT: choose default wp theme ##
    read -t 300 -p "$(echo -e ${LIGHTGRAY}"Choose default WordPress theme: "${LIGHTGREEN})" -e -i 'twentytwenty' ss_var_default_wp_theme || ss_var_default_wp_theme=twentytwenty
    sed -i "s|@WP_DEFAULT_THEME|${ss_var_default_wp_theme}|g" /tmp/ss-config-wizard
    
    ## new line ##
    printf "${COLOR_RESET}\n"
    
    ## PROMPT: choose language (default = en_US) ##
    read -t 300 -p "$(echo -e ${LIGHTGRAY}"Choose language (only affects minor features): "${LIGHTGREEN})" -e -i 'en_US' ss_var_language || ss_var_language=en_US
    sed -i "s|@SS_LANGUAGE|${ss_var_language}|g" /tmp/ss-config-wizard
    
    ## new line ##
    printf "${COLOR_RESET}\n"
    
    ## PROMPT: enable plugin blacklist (default = true) ##
    read -t 300 -p "$(echo -e ${LIGHTGRAY}"Enable the WordPress plugin blacklist: "${LIGHTGREEN})" -e -i 'true' ss_var_plugin_blacklist || ss_var_plugin_blacklist=true
    sed -i "s|@SS_WORDPRESS_PLUGIN_BLACKLIST|${ss_var_plugin_blacklist}|g" /tmp/ss-config-wizard
    
    ## new line ##
    printf "${COLOR_RESET}\n"
    
    ## PROMPT: enable SS dashboard in WP Admin (default = true) ##
    read -t 300 -p "$(echo -e ${LIGHTGRAY}"Enable the SlickStack dashboard in WP Admin: "${LIGHTGREEN})" -e -i 'true' ss_var_slickstack_dashboard || ss_var_slickstack_dashboard=true
    sed -i "s|@SS_WORDPRESS_ADMIN_DASHBOARD|${ss_var_slickstack_dashboard}|g" /tmp/ss-config-wizard
    
    ## new line ##
    printf "${COLOR_RESET}\n"
    
    ## PROMPT: link your pilot file (default = blank) ##
    read -t 300 -p "$(echo -e ${LIGHTGRAY}"Link to your pilot file (leave blank if none): "${LIGHTGREEN})" -e -i '' ss_var_pilot_file || ss_var_pilot_file=
    sed -i "s|@SS_PILOT_FILE|${ss_var_pilot_file}|g" /tmp/ss-config-wizard
    
    ## new line ##
    printf "${COLOR_RESET}\n"
    
    ## PROMPT: using a remote database (default = wordpress) ##
    read -t 300 -p "$(echo -e ${LIGHTGRAY}"Are you using a remote database: "${LIGHTGREEN})" -e -i 'false' ss_var_database_remote || ss_var_database_remote=false
    sed -i "s|@SS_DATABASE_REMOTE|${ss_var_database_remote}|g" /tmp/ss-config-wizard
    
    ## new line ##
    printf "${COLOR_RESET}\n"
    
    ## PROMPT: enable public adminer link ##
    read -t 300 -p "$(echo -e ${LIGHTGRAY}"Make the adminer (phpmyadmin) link public?: "${LIGHTGREEN})" -e -i 'true' ss_var_adminer_public || ss_var_adminer_public=true
    sed -i "s|@SS_ADMINER_PUBLIC|${ss_var_adminer_public}|g" /tmp/ss-config-wizard
    
    ## new line ##
    printf "${COLOR_RESET}\n"
    
    ## PROMPT: choose database name (default = production) ##
    read -t 300 -p "$(echo -e ${LIGHTGRAY}"Choose database name (single database): "${LIGHTGREEN})" -e -i 'production' ss_var_db_name || ss_var_db_name=production
    sed -i "s|@DB_NAME|${ss_var_db_name}|g" /tmp/ss-config-wizard
    
    ## new line ##
    printf "${COLOR_RESET}\n"
    
    ## PROMPT: choose database user (default = robin) ##
    read -t 300 -p "$(echo -e ${LIGHTGRAY}"Choose database user (non-root user): "${LIGHTGREEN})" -e -i 'robin' ss_var_db_user || ss_var_db_user=robin
    sed -i "s|@DB_USER|${ss_var_db_user}|g" /tmp/ss-config-wizard
    
    ## new line ##
    printf "${COLOR_RESET}\n"
    
    ## PROMPT: choose database user password (default = random) ##
    db_pass_random=$(openssl rand -hex 12)
    read -t 300 -p "$(echo -e ${LIGHTGRAY}"Choose database user password (should be strong): "${LIGHTGREEN})" -e -i ${db_pass_random} ss_var_db_password || ss_var_db_password=${db_pass_random}
    sed -i "s|@DB_PASSWORD_USER|${ss_var_db_password}|g" /tmp/ss-config-wizard
    
    ## new line ##
    printf "${COLOR_RESET}\n"
    
    ## PROMPT: choose database host ##
    read -t 300 -p "$(echo -e ${LIGHTGRAY}"Choose database host (IP address): "${LIGHTGREEN})" -e -i '127.0.0.1' ss_var_db_host || ss_var_db_host=127.0.0.1
    sed -i "s|@DB_HOST|${ss_var_db_host}|g" /tmp/ss-config-wizard
    
    ## new line ##
    printf "${COLOR_RESET}\n"
    
    ## PROMPT: choose database port ##
    read -t 300 -p "$(echo -e ${LIGHTGRAY}"Choose database port (3306 if using localhost): "${LIGHTGREEN})" -e -i '3306' ss_var_db_port || ss_var_db_port=3306
    sed -i "s|@DB_PORT|${ss_var_db_port}|g" /tmp/ss-config-wizard
    
    ## new line ##
    printf "${COLOR_RESET}\n"
    
    ## PROMPT: choose database prefix ##
    read -t 300 -p "$(echo -e ${LIGHTGRAY}"Choose database table prefix: "${LIGHTGREEN})" -e -i 'wp_' ss_var_db_prefix || ss_var_db_prefix=wp_
    sed -i "s|@DB_PREFIX|${ss_var_db_prefix}|g" /tmp/ss-config-wizard
    
    ## new line ##
    printf "${COLOR_RESET}\n"
    
    ## PROMPT: choose site TLD (otherwise example.com) ##
    read -t 300 -p "$(echo -e ${LIGHTGRAY}"Choose site TLD (subdomains not allowed): "${LIGHTGREEN})" -e -i "${SS_TLD}" ss_var_site_tld || ss_var_site_tld=${SS_TLD}
    sed -i "s|@SITE_TLD|${ss_var_site_tld}|g" /tmp/ss-config-wizard
    
    ## new line ##
    printf "${COLOR_RESET}\n"
    
    ## PROMPT: choose site domain (otherwise www.example.com) ##
    read -t 300 -p "$(echo -e ${LIGHTGRAY}"Choose site domain (subdirectories not allowed): "${LIGHTGREEN})" -e -i "www.${SS_TLD}" ss_var_site_domain || ss_var_site_tld=www.${SS_TLD}
    sed -i "s|@SITE_DOMAIN|${ss_var_site_domain}|g" /tmp/ss-config-wizard
    
    ## new line ##
    printf "${COLOR_RESET}\n"
    
    ## PROMPT: enable noindex server (default = false) ##
    read -t 300 -p "$(echo -e ${LIGHTGRAY}"Enable site noindexing (block robots): "${LIGHTGREEN})" -e -i 'false' ss_var_site_noindex || ss_var_site_noindex=false
    sed -i "s|@SITE_NOINDEX|${ss_var_site_noindex}|g" /tmp/ss-config-wizard
    
    ## new line ##
    printf "${COLOR_RESET}\n"
    
    ## PROMPT: which SSL do you want ##
    read -t 300 -p "$(echo -e ${LIGHTGRAY}"Choose SSL cert [openssl|certbot]: "${LIGHTGREEN})" -e -i 'openssl' ss_var_ssl_type || ss_var_ssl_type=openssl
    sed -i "s|@SSL_TYPE|${ss_var_ssl_type}|g" /tmp/ss-config-wizard
    
    ## new line ##
    printf "${COLOR_RESET}\n"
    
    ## PROMPT: enable WP Multisite ##
    read -t 300 -p "$(echo -e ${LIGHTGRAY}"Enable WordPress Multisite (experimental): "${LIGHTGREEN})" -e -i 'false' ss_var_wp_multisite_status || ss_var_wp_multisite_status=false
    sed -i "s|@WP_MULTISITE_STATUS|${ss_var_wp_multisite_status}|g" /tmp/ss-config-wizard
    
    ## new line ##
    printf "${COLOR_RESET}\n"
    
    ## PROMPT: enable Multisite subdomains ##
    read -t 300 -p "$(echo -e ${LIGHTGRAY}"Enable subdomains for WP Multisite?: "${LIGHTGREEN})" -e -i 'true' ss_var_wp_multisite_subdomains || ss_var_wp_multisite_subdomains=true
    sed -i "s|@WP_MULTISITE_SUBDOMAINS|${ss_var_wp_multisite_subdomains}|g" /tmp/ss-config-wizard
    
    ## new line ##
    printf "${COLOR_RESET}\n"
    
    ## PROMPT: choose Cloudflare API key (otherwise 123456789) ##
    read -t 300 -p "$(echo -e ${LIGHTGRAY}"Choose Cloudflare API key (account profile): "${LIGHTGREEN})" -e -i '123456789' ss_var_cloudflare_api_key || ss_var_cloudflare_api_key=123456789
    sed -i "s|@CLOUDFLARE_API_KEY|${ss_var_cloudflare_api_key}|g" /tmp/ss-config-wizard
    
    ## new line ##
    printf "${COLOR_RESET}\n"
    
    ## PROMPT: choose Cloudflare API email (otherwise user@example.com) ##
    read -t 300 -p "$(echo -e ${LIGHTGRAY}"Choose Cloudflare API email (account profile): "${LIGHTGREEN})" -e -i 'user@example.com' ss_var_cloudflare_api_email || ss_var_cloudflare_api_email=user@example.com
    sed -i "s|@CLOUDFLARE_API_EMAIL|${ss_var_cloudflare_api_email}|g" /tmp/ss-config-wizard
    
    ## new line ##
    printf "${COLOR_RESET}\n"
    
    ## PROMPT: enable staging site ##
    read -t 300 -p "$(echo -e ${LIGHTGRAY}"Enable staging site (subdomain): "${LIGHTGREEN})" -e -i 'false' ss_var_staging_site || ss_var_staging_site=false
    sed -i "s|@STAGING_SITE_STATUS|${ss_var_staging_site}|g" /tmp/ss-config-wizard
    
    ## new line ##
    printf "${COLOR_RESET}\n"
    
    ## PROMPT: protect staging site ##
    read -t 300 -p "$(echo -e ${LIGHTGRAY}"Password protect staging site: "${LIGHTGREEN})" -e -i 'false' ss_var_staging_site_protect || ss_var_staging_site_protect=false
    sed -i "s|@STAGING_SITE_PROTECT|${ss_var_staging_site_protect}|g" /tmp/ss-config-wizard
    
    ## new line ##
    printf "${COLOR_RESET}\n"
    
    ## PROMPT: enable dev site ##
    read -t 300 -p "$(echo -e ${LIGHTGRAY}"Enable dev site (subdomain): "${LIGHTGREEN})" -e -i 'false' ss_var_dev_site || ss_var_dev_site=false
    sed -i "s|@DEV_SITE_STATUS|${ss_var_dev_site}|g" /tmp/ss-config-wizard
    
    ## new line ##
    printf "${COLOR_RESET}\n"
    
    ## PROMPT: protect dev site ##
    read -t 300 -p "$(echo -e ${LIGHTGRAY}"Password protect dev site: "${LIGHTGREEN})" -e -i 'false' ss_var_dev_site_protect || ss_var_dev_site_protect=false
    sed -i "s|@DEV_SITE_PROTECT|${ss_var_dev_site_protect}|g" /tmp/ss-config-wizard
    
    ## new line ##
    printf "${COLOR_RESET}\n"
    
    ## PROMPT: choose guest username (default = guest) ##
    read -t 300 -p "$(echo -e ${LIGHTGRAY}"Choose guest username (to view staging/dev): "${LIGHTGREEN})" -e -i 'guest' ss_var_guest_user || ss_var_guest_user=guest
    sed -i "s|@GUEST_USER|${ss_var_guest_user}|g" /tmp/ss-config-wizard
    
    ## new line ##
    printf "${COLOR_RESET}\n"
    
    ## PROMPT: choose guest password (default = random) ##
    guest_pass_random=$(openssl rand -hex 12)
    read -t 300 -p "$(echo -e ${LIGHTGRAY}"Choose guest password (easy is fine): "${LIGHTGREEN})" -e -i ${guest_pass_random} ss_var_guest_password || ss_var_guest_password=${guest_pass_random}
    sed -i "s|@GUEST_PASSWORD|${ss_var_guest_password}|g" /tmp/ss-config-wizard
    
    ## new line ##
    printf "${COLOR_RESET}\n"
    
    ## PROMPT: which remote backups do you want ##
    read -t 300 -p "$(echo -e ${LIGHTGRAY}"Which remote backups do you want? (none|rsync|rclone): "${LIGHTGREEN})" -e -i 'none' ss_var_remote_backups || ss_var_remote_backups=none
    sed -i "s|@SS_REMOTE_BACKUPS|${ss_var_remote_backups}|g" /tmp/ss-config-wizard
    
    ## new line ##
    printf "${COLOR_RESET}\n"
    
 ####################################################################################################
 #### G. SS-Install: Activate SS-Config File Generated By Wizard ####################################
 ####################################################################################################
    
    ## copy files to their destinations ##
    ss_mkdir /var/www
    ss_mv /tmp/ss-config-wizard /var/www/ss-config
    chown root:root /var/www/ss-config ## must be root:root
    chmod 0700 /var/www/ss-config ## 0700 means only root can execute
    
####################################################################################################
#### H. SS-Install: Retrieve SS-Check ##############################################################
####################################################################################################

## now that ss-config is configured we must retrieve ss-check script to prepare for next ##
## ss-check is a critical file at this stage for both automated and manual installs ##

## download current versions ##
ss_wget_slowest "${TMP_SS_CHECK}" "${MIRROR_SS_CHECK}"

VALIDATE_TMP_SS_CHECK=$(grep 'SS_EOF' "${TMP_SS_CHECK}" 2> /dev/null)
if [[ -z "${VALIDATE_TMP_SS_CHECK}" ]]; then
    ss_wget_slowest "${TMP_SS_CHECK}" "${MIRROR2_SS_CHECK}"
fi

VALIDATE2_TMP_SS_CHECK=$(grep 'SS_EOF' "${TMP_SS_CHECK}" 2> /dev/null)
if [[ -z "${VALIDATE2_TMP_SS_CHECK}" ]]; then
    ss_wget_slowest "${TMP_SS_CHECK}" "${MIRROR3_SS_CHECK}"
fi

## copy files to destination ##
ss_mv "${TMP_SS_CHECK}" "${PATH_SS_CHECK}"
chown root:root /var/www/ss* ## must be root:root
chmod 0700 /var/www/ss* ## 0700 means root can execute

####################################################################################################
#### SS-Install: Message  #####################################################
####################################################################################################

## this is a simple message that announces to the shell the purpose of this bash script ##
## it will only be noticed by sudo users who manually call ss core bash scripts ##

## force exit if SSH keys chosen ##
SSHKEYS_CHOSEN=$(source /var/www/ss-config; echo ${SSH_KEYS} 2> /dev/null)
if [[ "${SSHKEYS_CHOSEN}" == "true" ]] && [[ ! -f "/var/www/auth/id_rsa.pub" ]]; then
    echo -e "${YELLOW}Exiting ss-install: Please upload your /var/www/auth/id_rsa.pub file before proceeding... ${NOCOLOR}"
    echo -e "${YELLOW}Alternatively SlickStack will create a new key pair for you (just run ss-install again now)... ${NOCOLOR}"
fi

## force exit if thirdparty SSL chosen ##
THIRDPARTY_CHOSEN=$(source /var/www/ss-config; echo ${SSL_TYPE})
if [[ "${THIRDPARTY_CHOSEN}" == "thirdparty" ]] && [[ ! -f "/var/www/certs/thirdparty.pem" || ! -f "/var/www/certs/keys/thirdparty.key" ]]; then
    echo -e "${YELLOW}Exiting ss-install: Since you chose thirdparty SSL please upload your cert/key before proceeding... ${NOCOLOR}"
fi

####################################################################################################
#### I. SS-Install: Message (Last Chance To Exit) ##################################################
####################################################################################################

    ## echo message ##
    echo -e "${COLOR_WARN}Your /var/www/ss-config file is now ready! Ctrl+C to exit now if you  ${NOCOLOR}"

    WAIT_TIME_LAST_CHANCE="15" # seconds
    WAIT_TIME_LAST_CHANCE_TMP="${WAIT_TIME_LAST_CHANCE}"
    while [[ ${WAIT_TIME_LAST_CHANCE_TMP} -gt 0 ]];
    do
        printf "${COLOR_WARN}\rwant to review options before proceeding, otherwise wait... ${LIGHTGRAY}%2d ${NOCOLOR}" ${WAIT_TIME_LAST_CHANCE_TMP}
        sleep 1
        ((WAIT_TIME_LAST_CHANCE_TMP--))
    done

    ## begin install message ##
    echo -e ""
    echo -e ""
    echo -e "${COLOR_INFO}################################################################################${NOCOLOR}"
    echo -e "${COLOR_INFO}#### SlickStack Automated Installation (SS-Install) ############################${NOCOLOR}"
    echo -e "${COLOR_INFO}################################################################################${NOCOLOR}"
    echo -e ""
    echo -e "${COLOR_INFO}ss-install: Your ss-config file was succesfully configured so proceeding... ${NOCOLOR}"
    
####################################################################################################
#### J. SS-Install: Message (Welcome Back If SS-Config Exists) #####################################
####################################################################################################

## in case ss-config file already exists in the proper location we skip to installation ##
## you can run the ss-install script as many times as you want without conflicts ##

else

    echo -e "${COLOR_INFO}################################################################################${NOCOLOR}"
    echo -e "${FIRST_LINE_TRIM}"
    echo -e "${SECOND_LINE_TRIM}"
    echo -e "${THIRD_LINE_TRIM}"
    echo -e "${FOURTH_LINE_TRIM}"
    echo -e "${FIFTH_LINE_TRIM}"
    echo -e "${INTRO_MEMORY_TRIM}"
    echo -e "${INTRO_SWAPFILE_TRIM}"
    echo -e "${SIXTH_LINE_TRIM}"
    echo -e "${EIGHT_LINE_TRIM}"
    echo -e "${NINE_LINE_TRIM}"
    echo -e "${COLOR_INFO}################################################################################${NOCOLOR}"
    echo -e ""
    echo -e "${COLOR_INFO}ss-install: An ss-config file already exists so we will proceed using it... ${NOCOLOR}"
fi


####################################################################################################
#### K. SS-Install: Source SS-Config (After Setup Wizard Complete) #################################
####################################################################################################

## here we must source ss-config again after the setup wizard has completed generation ##
## this is different than the conditional sourcing at the top of this script ##

## source ss-config ##
source /var/www/ss-config

####################################################################################################
#### L. SS-Install: Run SS-Check ###################################################################
####################################################################################################

## here we run ss-check after ss-config exists so that we can continue with installation ##
## whether or not user has exited the wizard to review ss-config it should work fine ##

## source ss-check ##
source "${PATH_SS_CHECK}"

####################################################################################################
##### SS-Install: Reset Permissions (SlickStack) ###################################################
####################################################################################################

## SNIPPET: ss-check, ss-install, ss-worker, ss core cron jobs

ss_mkdir /var/www
ss_mkdir /var/www/auth
ss_mkdir /var/www/backups
ss_mkdir /var/www/backups/config
ss_mkdir /var/www/backups/html
ss_mkdir /var/www/backups/mysql
ss_mkdir /var/www/backups/mysql/data
ss_mkdir /var/www/cache
ss_mkdir /var/www/cache/nginx
ss_mkdir /var/www/cache/opcache
ss_mkdir /var/www/cache/system
ss_mkdir /var/www/certs
ss_mkdir /var/www/certs/keys
ss_mkdir /var/www/crons
ss_mkdir /var/www/crons/custom
ss_mkdir /var/www/html
ss_mkdir /var/www/html/.well-known
ss_mkdir /var/www/html/.well-known/acme-challenge
ss_mkdir /var/www/logs
ss_mkdir /var/www/meta
ss_mkdir /var/www/meta/timestamps
ss_mkdir /var/www/sites
ss_touch /var/www/meta/.htpasswd
    
## if staging enabled
if [[ "${STAGING_SITE}" != "false" ]]; then 
    ss_mkdir /var/www/html/staging
    ss_mkdir /var/www/html/staging/.well-known
    ss_mkdir /var/www/html/staging/.well-known/acme-challenge
fi

## if dev enabled
if [[ "${DEV_SITE}" != "false" ]]; then 
    ss_mkdir /var/www/html/dev
    ss_mkdir /var/www/html/dev/.well-known
    ss_mkdir /var/www/html/dev/.well-known/acme-challenge
fi

## user/group ownership ##
chown root:root /var/www ## must be root:root
chown root:root /var/www/backups ## must be root:root
chown root:root /var/www/backups/config ## must be root:root
chown root:root /var/www/backups/mysql ## must be root:root
chown root:root /var/www/backups/mysql/data ## must be root:root
chown root:root /var/www/cache/system ## must be root:root
chown root:root /var/www/certs ## must be root:root
chown root:root /var/www/certs/keys ## must be root:root
chown root:root /var/www/crons ## must be root:root
chown root:root /var/www/crons/custom ## must be root:root

####################################################################################################
#### M. SS-Install: Set Dpkg Default Settings ######################################################
####################################################################################################

## for smoother execution and to avoid conflicts we set dpkg to noninteractive/confold ##
## it is much better to run ss-update instead of calling apt get upgrade manually ##

## set confold as dpkg default (fail-safe in case apt upgrade called directly) ##
DEBIAN_FRONTEND=noninteractive dpkg --configure -a --force-confold

####################################################################################################
#### N. SS-Update-Packages: Upgrade Ubuntu Packages + Linux Kernel #################################
####################################################################################################

## the main purpose of ss-update is to upgrade all currently installed Ubuntu packages ##
## we use apt full-upgrade (not apt-get) in order to upgrade the Linux kernel ##

## clean apt cache ##
ss_apt_clean

## update apt cache ##
ss_apt_update

## upgrade apt packages (including linux kernel) ##
ss_apt_full_upgrade

## remove unused dependencies ##
ss_apt_autoremove

####################################################################################################
#### SS-Install: Configure Ubuntu ##################################################################
####################################################################################################

## first we need to setup all users and passwords for Ubuntu and set sudo permissions ##
## this process will also set the default SSH port and disable root logins ##

## run ss-install-ubuntu-users ##
source "${PATH_SS_INSTALL_UBUNTU_USERS}"

## run ss-install-ubuntu-bash ##
source "${PATH_SS_INSTALL_UBUNTU_BASH}"

## run ss-install-ubuntu-ssh ##
source "${PATH_SS_INSTALL_UBUNTU_SSH}"

## run ss-install-ubuntu-crontab ##
source "${PATH_SS_INSTALL_UBUNTU_CRONTAB}"

## run ss-install-ubuntu-swapfile ##
source "${PATH_SS_INSTALL_UBUNTU_SWAPFILE}"

## run ss-install-ubuntu-utils ##
source "${PATH_SS_INSTALL_UBUNTU_UTILS}"

## run ss-install-ubuntu-kernel ##
source "${PATH_SS_INSTALL_UBUNTU_KERNEL}"

####################################################################################################
#### SS-Install: Install PHP-FPM (Before Nginx) ####################################################
####################################################################################################

## here we install the PHP-FPM module which includes OPcache for better performance ##
## FastCGI is configured to interface with Nginx using TCP (127.0.0.1:9000) ##

## run ss-install-php-packages ##
source "${PATH_SS_INSTALL_PHP_PACKAGES}"

## run ss-install-php-config ##
source "${PATH_SS_INSTALL_PHP_CONFIG}"

####################################################################################################
#### SS-Install: Install Nginx (Includes SSL Certificates) #########################################
####################################################################################################

## the Nginx installer includes OpenSSL and Lets Encrypt generation to avoid conflicts ##
## default settings allow for very high-traffic so CloudFlare is recommended ##

## run ss-install-nginx-packages ##
source "${PATH_SS_INSTALL_NGINX_PACKAGES}"

## run ss-install-nginx-config ##
source "${PATH_SS_INSTALL_NGINX_CONFIG}"

####################################################################################################
#### SS-Install: Enable Maintenance Mode (After SSL Certs Installed) ###############################
####################################################################################################

## this is a nifty snippet that will put up a public maintenance page during install ##
## it helps prevent users from interacting with your website at this stage ##

## run ss-maintenance-enable ##
source "${PATH_SS_MAINTENANCE_ENABLE}"

####################################################################################################
#### SS-Install: Install MySQL #####################################################################
####################################################################################################

## here we install MySQL server (no client) and users based on the ss-config settings ##
## root@localhost will use sockets and PHP apps will connect via 127.0.0.1 (TCP) ##

## run ss-install-mysql-packages ##
source "${PATH_SS_INSTALL_MYSQL_PACKAGES}"

## run ss-install-mysql-config ##
source "${PATH_SS_INSTALL_MYSQL_CONFIG}"

####################################################################################################
#### SS-Install: Install Redis #####################################################################
####################################################################################################

## Redis is only installed to enable object caching in WordPress (if plugin exists) ##
## full page caching is provided solely by Nginx FastCGI and not by Redis ##

## run ss-install-redis-packages ##
source "${PATH_SS_INSTALL_REDIS_PACKAGES}"

## run ss-install-redis-config ##
source "${PATH_SS_INSTALL_REDIS_CONFIG}"

####################################################################################################
#### SS-Install: Install Adminer ###################################################################
####################################################################################################

## should be installed after PHP-FPM and Nginx modules to ensure seamless installation ##
## Adminer (similar to phpMyAdmin) can be publicly accessed at /adminer URI ##

## run ss-install-adminer ##
source "${PATH_SS_INSTALL_ADMINER}"
 
####################################################################################################
#### SS-Install: Install CMS (WordPress, PrestaShop, MediaWiki, Etc) ###############################
####################################################################################################

## SNIPPET: ss-install, ss-update

## this snippet fetches the latest stable version of WordPress from SlickStack mirrors ##
## major CMS releases (unpatched) are never considered stable for our purposes ##
    
if [[ "${SS_APP}" == "wordpress" || -z "${SS_APP}"  ]]; then

    ## run ss-install-wordpress-core ##
    source "${PATH_SS_INSTALL_WORDPRESS_CORE}"

    ## here we retrieve latest wp-config.php boilerplate and customize per ss-config settings ##
    ## you should never make changes directly to wp-config.php in SlickStack servers ##

    ## run ss-install-wordpress-config ##
    source "${PATH_SS_INSTALL_WORDPRESS_CONFIG}"

    ## this will install the designated MU plugins and also Custom Functions and Object Cache ##
    ## with a few exceptions these can all be customized using ss-config settings ##

    ## run ss-install-wordpress-mu-plugins ##
    source "${PATH_SS_INSTALL_WORDPRESS_MU_PLUGINS}"
    
    ## run ss-install-wordpress-cli ##
    source "${PATH_SS_INSTALL_WORDPRESS_CLI}"

fi


## this snippet fetches the latest stable version of PrestaShop from SlickStack mirrors ##
## major CMS releases (unpatched) are never considered stable for our purposes ##

if [[ "${SS_APP}" == "prestashop" ]]; then

    ## run ss-install-prestashop-core ##
    source "${PATH_SS_INSTALL_PRESTASHOP_CORE}"
    
    ## run ss-install-prestashop-config ##
    source "${PATH_SS_INSTALL_PRESTASHOP_CONFIG}"
    
fi

## this snippet fetches the latest stable version of MediaWiki from SlickStack mirrors ##
## major CMS releases (unpatched) are never considered stable for our purposes ##

if [[ "${SS_APP}" == "mediawiki" ]]; then

    ## run ss-install-prestashop-core ##
    source "${PATH_SS_INSTALL_MEDIAWIKI_CORE}"
    
    ## run ss-install-prestashop-config ##
    source "${PATH_SS_INSTALL_MEDIAWIKI_CONFIG}"
    
fi

####################################################################################################
#### SS-Install: Sync Staging Site #################################################################
####################################################################################################

## now that everything is setup and permissions fixed we sync production to staging ##
## it will only sync files/database if staging site is enabled in ss-config ##

## run ss-sync-staging ##
source "${PATH_SS_SYNC_STAGING}"

####################################################################################################
#### SS-Install: Install Rclone ####################################################################
####################################################################################################

## run ss-install-rclone-packages ##
source "${PATH_SS_INSTALL_RCLONE_PACKAGES}"

## run ss-install-rclone-config ##
source "${PATH_SS_INSTALL_RCLONE_CONFIG}"

####################################################################################################
#### SS-Install: Install ClamAV ####################################################################
####################################################################################################

## this will install ClamAV for occassional malware logging: /var/www/logs/clamav.log ##
## keep in mind that infected files are not automatically cleaned or deleted ##

## run ss-install-clamav ##
source "${PATH_SS_INSTALL_CLAMAV}"

####################################################################################################
#### SS-Install: Install UFW Firewall ##############################################################
####################################################################################################

## here we install and configure the very simple UFW Firewall that Ubuntu maintains ##
## only ports 80, 443, and your designated SSH port (22) will be allowed ##

## run ss-install-ufw-packages ##
source "${PATH_SS_INSTALL_UFW_PACKAGES}"

## run ss-install-ufw-config ##
source "${PATH_SS_INSTALL_UFW_CONFIG}"

####################################################################################################
#### SS-Install: Reset All Logs To NULL ############################################################
####################################################################################################

## run ss-empty-logs ##
source "${PATH_SS_EMPTY_LOGS}"

####################################################################################################
#### SS-Install: Reset Permissions (All Permissions) ###############################################
####################################################################################################

## intuitively resets all file and user permissions across the entire SlickStack server ##
## depending on the CMS installed it will also reset those permissions as well ##

## run ss-perms ##
source "${PATH_SS_PERMS}"

####################################################################################################
#### SS-Install: Disable Maintenance Mode ##########################################################
####################################################################################################

## since everything is now setup including perms and staging we disable maintenance ##
## for good measure we also purge all caches immediately after this snippet ##

## run ss-maintenance-disable ##
source "${PATH_SS_MAINTENANCE_DISABLE}"

####################################################################################################
#### SS-Install: Clear Caches (All Caches) #########################################################
####################################################################################################

## this clears all caches i.e. Nginx, OPcache, Redis object cache, and WP transients ##
## we run this after ss-perms and before ss-restart-modules to avoid conflicts ##

## run ss-purge-nginx ##
source "${PATH_SS_PURGE_NGINX}"

## run ss-purge-opcache ##
source "${PATH_SS_PURGE_OPCACHE}"

## run ss-purge-redis ##
source "${PATH_SS_PURGE_REDIS}"

## run ss-purge-transients ##
source "${PATH_SS_PURGE_TRANSIENTS}"

####################################################################################################
#### SS-Install: Restart Modules (All Modules) #####################################################
####################################################################################################

## this script is using init.d instead of systemd shortcuts to allow for absolute paths ##
## we are looking into including other snippets here such as unmasking (etc) ##

## run ss-restart-php ##
source "${PATH_SS_RESTART_PHP}"

## run ss-restart-nginx ##
source "${PATH_SS_RESTART_NGINX}"

## run ss-restart-redis ##
source "${PATH_SS_RESTART_REDIS}"

## run ss-restart-mysql ##
source "${PATH_SS_RESTART_MYSQL}"

## run ss-restart-ufw ##
source "${PATH_SS_RESTART_UFW}"

####################################################################################################
#### SS-Install: Validate Crontab ##################################################################
####################################################################################################

## this is a final check to ensure the root crontab was installed properly by ss-install ##
## otherwise it will attempt to reinstall the crontab one more time here ##

## validate crontab ##
VALIDATE_CRONTAB=$(ss_grep_boolean 'SS_EOF' /var/spool/cron/crontabs/root)
if [[ -z "${VALIDATE_CRONTAB}" ]]; then
    source "${PATH_SS_INSTALL_UBUNTU_CRONTAB}"
fi

####################################################################################################
#### SS-Install: Run SS-Stack-Overview #############################################################
####################################################################################################

## the shell will echo the most important ss-config settings (and beyond) currently used ##
## this allows you to easily copy/paste for your records or for your clients ##

## run ss-stack-overview ##
source "${PATH_SS_STACK_OVERVIEW}"

####################################################################################################
#### SS-Install: MESSAGE (End) #####################################################################
####################################################################################################

if [[ "${SSH_KEYS}" == "true" ]]; then 
    echo -e ""
    echo -e "${YELLOW}Since you enabled SSH keys be sure to add your public key to: ${PATH_SSH_AUTHORIZED_KEYS_FILE}${NOCOLOR}"
    echo -e "${YELLOW}...or simply use the default public key if you prefer (we added it already).${NOCOLOR}"
    echo -e ""
fi
    
## confirm installation complete ##
echo -e ""
echo -e "${COLOR_INFO}################################################################################${NOCOLOR}"
echo -e "${COLOR_INFO}#### Congrats! SlickStack installation is now complete. ########################${NOCOLOR}"
echo -e "${COLOR_INFO}################################################################################${NOCOLOR}"
echo -e ""
echo -e "${COLOR_WARN}NOTE: The SFTP user/password is the default login for WP Admin on all sites ${NOCOLOR}"
echo -e "${COLOR_WARN}until otherwise configured by your team. Use the bash alias ${BGG_YELLOW}${YELLOW}ss${COLOR_RESET}${COLOR_WARN} to save on ${NOCOLOR}"
echo -e "${COLOR_WARN}keystrokes (type ${BGG_YELLOW}${YELLOW}ss help${COLOR_RESET}${COLOR_WARN} for a full list of commands). If this is the first ${NOCOLOR}"
echo -e "${COLOR_WARN}time you installed SlickStack on this server, type the word ${BGG_YELLOW}${YELLOW}bash${COLOR_RESET}${COLOR_WARN} below and ${NOCOLOR}"
echo -e "${COLOR_WARN}hit ENTER to reload this shell session and activate these shortcuts. Also ${NOCOLOR}"
echo -e "${COLOR_WARN}be sure to write down your sudo user/password for SSH access, since the root ${NOCOLOR}"
echo -e "${COLOR_WARN}user is disabled. Also, be sure to enable [Full SSL] mode in Cloudflare to ${NOCOLOR}"
echo -e "${COLOR_WARN}avoid redirect loops (HSTS can also be activated if you like). For an extra ${NOCOLOR}"
echo -e "${COLOR_WARN}boost, use Cloudflare Page Rules to [cache all] for /wp-content/* requests ${NOCOLOR}"
echo -e "${COLOR_WARN}and to force-redirect (non)www requests too. Lastly, be sure to set TLS ${NOCOLOR}"
echo -e "${COLOR_WARN}version to 1.2+ in Cloudflare for top SSL security scores. If you notice ${NOCOLOR}"
echo -e "${COLOR_WARN}any errors on your frontend, simply run ss-install again. Cheers! ${NOCOLOR}"
echo -e ""
echo -e "${COLOR_INFO}Ctrl/Cmd + click to open --> ${LIGHTGREEN}https://${SITE_DOMAIN}/wp-login.php ${NOCOLOR}"
echo -e ""

####################################################################################################
#### SlickStack: External References Used To Improve This Script (Thanks, Interwebz) ###############
####################################################################################################

## Ref: http://wproller.com ##
## Ref: https://github.com/bjornjohansen/deploy-wp-on-vps/blob/master/deploy.sh ##
## Ref: https://github.com/sm0k3net/Useful-Scripts/blob/master/wordpress.sh ##
## Ref: https://github.com/techandme/wordpress-vm ##
## Ref: https://github.com/QROkes/webinoly ##
## Ref: https://github.com/WordOps/WordOps ##
## Ref: https://www.isicca.com/en/lemp-howto-install-nginx-php7-mariadb/ ##
## Ref: https://gist.github.com/FeChagas/54b0cdf354b197dc8e417357d7687e8b ##
## Ref: https://github.com/GeekPress/WP-Quick-Install ##
## Ref: https://github.com/bajpangosh/High-Traffic-wordpress-server-configuration ##
## Ref: https://gist.github.com/nickfox-taterli/2c283d73ba817392fb0f9f15d9cfa514 ##
## Ref: https://gist.github.com/beardedinbinary/79d7ad34f9980f0a4c23 ##
## Ref: https://www.linuxbabe.com/security/letsencrypt-webroot-tls-certificate
## Ref: https://stackoverflow.com/questions/49668542/create-a-script-that-adds-lines-of-code-to-bashrc-then-reloads-the-terminal
## Ref: https://peteris.rocks/blog/unattended-installation-of-wordpress-on-ubuntu-server/
## Ref: https://serverfault.com/questions/783527/non-interactive-silent-install-of-mysql-5-7-on-ubuntu-16-04-lts/830352#830352
## Ref: https://www.percona.com/blog/2016/10/18/upgrading-to-mysql-5-7-beware-of-the-new-strict-mode/
## Ref: https://stackoverflow.com/questions/3601515/how-to-check-if-a-variable-is-set-in-bash
## Ref: https://serverfault.com/questions/773964/calculating-the-percentage-of-the-total-available-memory-on-linux-as-an-integer
## Ref: https://stackoverflow.com/questions/29271593/bash-check-for-amount-of-memory-installed-on-a-system-as-sanity-check
## Ref: https://stackoverflow.com/questions/50177216/how-to-grant-all-privileges-to-root-user-in-mysql-8-0
## Ref: https://stackoverflow.com/questions/28118296/bash-script-is-super-slow
## Ref: https://stackoverflow.com/questions/15445361/speeding-up-bash-scripts
## Ref: https://unix.stackexchange.com/questions/67057/bash-script-optimization-of-processing-speed
## Ref: https://unix.stackexchange.com/questions/313256/why-write-an-entire-bash-script-in-functions
## Ref: http://nginx.org/en/linux_packages.html
## Ref: https://www.digitalocean.com/community/questions/nginx-stable-or-mainline-for-production-server
## Ref: https://precisionsec.com/changing-the-wordpress-site-url-using-the-mysql-command-line/
## Ref: https://magc.co/box/notes/change-wp-urls-mysql/
## Ref: https://wordpress.stackexchange.com/questions/281814/wordpress-multisite-redirecting-to-wp-signup-php
## Ref: https://wordpress.stackexchange.com/questions/165507/site-redirecting-to-wp-signup-php
## Ref: https://askubuntu.com/questions/86849/how-to-unzip-a-zip-file-from-the-terminal
## Ref: https://www.computerhope.com/unix/rsync.htm
## Ref: https://lowendbox.com/blog/wordpress-cheap-vps-lowendscript/
## Ref: https://unix.stackexchange.com/questions/67057/bash-script-optimization-of-processing-speed
## Ref: http://www.los-gatos.ca.us/davidbu/faster_sh.html
## Ref: https://blog.eduonix.com/shell-scripting/learn-how-to-write-interactive-shell-scripts/
## Ref: https://www.stefanjudis.com/today-i-learned/how-to-add-interactive-questions-to-bash-scripts/
## Ref: https://askubuntu.com/questions/998640/bash-interactive-script
## Ref: https://ryanstutorials.net/bash-scripting-tutorial/bash-input.php
## Ref: http://www.linfo.org/clear.html
## Ref: https://gist.github.com/jonsuh/3c89c004888dfc7352be
## Ref: https://stackoverflow.com/questions/2924697/how-does-one-output-bold-text-in-bash/2924755
## Ref: https://medium.com/@jasonrigden/cowsay-is-the-most-important-unix-like-command-ever-35abdbc22b7f
## Ref: https://stackoverflow.com/questions/37052899/what-is-the-preferred-method-to-echo-a-blank-line-in-a-shell-script
## Ref: https://tldp.org/LDP/abs/html/options.html
## Ref: https://fernandobasso.dev/shell/shell-script-input-default-values.html
## Ref: https://stackoverflow.com/questions/10735574/include-source-script-if-it-exists-in-bash
## Ref: https://scripter.co/count-down-timer-in-shell/
## Ref: https://stackoverflow.com/questions/4332478/read-the-current-text-color-in-a-xterm/4332530#4332530
## Ref: https://stackoverflow.com/questions/24998434/read-command-display-the-prompt-in-color-or-enable-interpretation-of-backslas
## Ref: https://stackoverflow.com/questions/714915/using-the-passwd-command-from-within-a-shell-script/715802#comment52196688_19745733
## Ref: https://askubuntu.com/questions/1214103/how-to-automate-changing-old-password
## Ref: https://unix.stackexchange.com/questions/223965/i-cant-change-users-passwd-on-ubuntu
## Ref: https://www.tecmint.com/fix-passwd-authentication-token-manipulation-error-in-linux/
## Ref: https://stackoverflow.com/questions/4332478/read-the-current-text-color-in-a-xterm/4332530#4332530
## Ref: https://medium.com/@smohajer85/bash-scripting-tutorial-part-11-8ce0c17b01c1
## Ref: https://linuxhint.com/tput-printf-and-shell-expansions-how-to-create-awesome-outputs-with-bash-scripts/
## Ref: https://stackoverflow.com/questions/8467424/echo-newline-in-bash-prints-literal-n
## Ref: https://askubuntu.com/questions/420784/what-do-the-disabled-login-and-gecos-options-of-adduser-command-stand
## Ref: https://stackoverflow.com/questions/55822739/does-echo-userpass-usr-sbin-chpasswd-override-the-root-password
## Ref: https://stackoverflow.com/questions/8110530/check-free-disk-space-for-current-partition-in-bash
## Ref: https://unix.stackexchange.com/questions/14961/how-to-find-out-which-interface-am-i-using-for-connecting-to-the-internet
## Ref: https://unix.stackexchange.com/questions/297139/sourcing-a-file-multiple-times-in-a-bash-script
## Ref: https://stackoverflow.com/questions/23513045/how-to-check-if-a-process-is-running-inside-docker-container
## Ref: https://stackoverflow.com/questions/20010199/how-to-determine-if-a-process-runs-inside-lxc-docker
## Ref: https://unix.stackexchange.com/questions/343942/shell-check-if-docker-container-is-existing
## Ref: https://stackoverflow.com/questions/20406134/read-a-bash-variable-assignment-from-other-file
## Ref: https://unix.stackexchange.com/questions/311758/remove-specific-word-in-variable
## Ref: https://stackoverflow.com/questions/13210880/replace-one-substring-for-another-string-in-shell-script
## Ref: https://stackoverflow.com/questions/11953185/counting-the-number-of-dots-in-a-string
## Ref: https://stackoverflow.com/questions/21157435/how-can-i-compare-a-string-to-multiple-correct-values-in-bash
## Ref: https://stackoverflow.com/questions/4792434/redis-on-web-server-front-end-or-database-server-back-end
## Ref: https://blog.danslimmon.com/2019/07/15/do-nothing-scripting-the-key-to-gradual-automation/
## Ref: https://unix.stackexchange.com/questions/148761/how-do-i-suppress-stderr-warning-messages-from-a-command-inside-command-substitu
## Ref: https://unix.stackexchange.com/questions/510614/how-can-i-store-output-in-bash-variable-and-suppress-output-to-stderr-and-stdout
## Ref: https://patorjk.com/software/taag/#p=display&f=Slant&t=slickstack
## Ref: https://stackoverflow.com/questions/25214084/cant-get-ascii-art-to-echo-to-console/25214148
## Ref: https://superuser.com/questions/315386/how-do-i-clear-my-bash-screen-while-maintaining-scrollback

## SS_EOF