#!/bin/bash

serverName="nginx"
serverPackages="nginx"
phpVersion="7.3"
phpName="php$phpVersion"
phpPackages="${phpName}-fpm ${phpName}-json ${phpName}-mysql ${phpName}-curl ${phpName}-intl ${phpName}-gd ${phpName}-zip ${phpName}-xml ${phpName}-mbstring php-imagick php-apcu"

step_1_info() { 
  echo "Installation of $serverName packages:"
  echoinfo "$serverPackages"
}
step_1_alias() { ALIAS="install"; }
step_1() {
  exe apt update
  exe apt install $serverPackages
  endReturn -o $? "Server package installation error"
}

step_2_info() { echo "Basic nginx configuration for initial letsencrypt certificate creation"; }
step_2() {
  # Writing acme-challenge code snipped for certbot web root authentication
  addConf -c "$snippetLetsencrypt" "$snippetLetsencryptLoc"

  # Writing minimal default (see below)
  addConf -c "$siteDefaultIp4" "$siteDefaultLoc"

  # try fix errors on first install attempt
  # (possible missing ipv6 support on system)
  if [ $ERNO -ne 0 ] ; then
    exe apt install nginx
  fi

  # create webroot 
  exe mkdir -p "$siteLetsencryptWww"

  echo -n " [I] Restarting Nginx ... "
  exe service nginx restart && echo "ok"
  endReturn -o $? "Nginx error during startup"
}
snippetLetsencryptLoc="/etc/nginx/snippets/letsencrypt.conf"
siteLetsencryptWww="/var/www/letsencrypt"
snippetLetsencrypt="\
location ^~ /.well-known/acme-challenge/ {
  default_type \"text/plain\";
  root ${siteLetsencryptWww};
}"
siteDefaultLoc="/etc/nginx/sites-available/default"
siteDefaultIp4="server {
  listen 80 default_server;

  include ${snippetLetsencryptLoc}; 
}"

step_3_info() {
  echo "Installation of $phpName packages:"
  echoinfo "$phpPackages"
}
step_3() {
  exe apt install $phpPackages
  endReturn -o $? "$phpName error during startup"
}
phpFpmConfigLocation="/etc/php/${phpVersion}/fpm/conf.d/90-custom_pi.ini"
phpFpmConfig="\
post_max_size=64M
max_execution_time=600

apc.enable_cli=1

date.timezone = Europe/Berlin

opcache.enable=1
opcache.enable_cli=1
opcache.interned_strings_buffer=8
opcache.max_accelerated_files=10000
opcache.memory_consumption=128
opcache.save_comments=1
opcache.revalidate_freq=1"

phpCliConfigLocation="/etc/php/${phpVersion}/cli/conf.d/90-custom_pi.ini"
phpCliConfig="\
date.timezone = Europe/Berlin"

step_4_info() { echo -e "Configuration of ${phpName} fpm and cli\n"; }
step_4() {
  addConf -c "$phpFpmConfig" "$phpFpmConfigLocation"
  addConf -c "$phpCliConfig" "$phpCliConfigLocation"

  echo -n "Restarting ${phpName} ..."
  exe service ${phpName}-fpm restart
  endReturn -o $? "$phpName error during restart"
  echo "ok"
}

VERSION_SEQREV=10
. /usr/local/bin/sequencer.sh