#!/bin/bash
# info: add php fpm version
# options: VERSION
#
# example: v-add-web-php 8.0
#
# Install php-fpm for provided version.

#----------------------------------------------------------#
#                Variables & Functions                     #
#----------------------------------------------------------#

# Argument definition
version=$1

# Includes
# shellcheck source=/etc/hestiacp/hestia.conf
source /etc/hestiacp/hestia.conf
# shellcheck source=/usr/local/hestia/func/main.sh
source $HESTIA/func/main.sh
# load config file
source_conf "$HESTIA/conf/hestia.conf"
source_conf "$HESTIA/install/upgrade/upgrade.conf"


for elem in "${!multiphp_v[@]}"; do
	multiphp_v[$elem]=$(convert_dot_version_to_non_dot "${multiphp_v[$elem]}")
done

#----------------------------------------------------------#
#                    Verifications                         #
#----------------------------------------------------------#

check_args '1' "$#" 'VERSION'

if [ -z "$WEB_BACKEND" ]; then
	echo "Multiple php versions are not supported for modphp"
fi

# Set file locations
php_fpm=""
if [ "$LOCAL_PHP" == "yes" ]; then
	php_fpm="/usr/lib/systemd/system/brepo-php-fpm$version.service"
else
	php_fpm="/usr/lib/systemd/system/php$version-php-fpm.service"
fi


# Verify php version format
if [[ ! $version =~ ^[0-9][0-9]+ ]]; then
	echo "The specified PHP version format is invalid, it should look like [0-9][0-9]."
	echo "Example: 70, 74, 80"
	exit "$E_INVALID"
fi


# Check if php version already exists
if [ -f "$php_fpm" ] && [ -f "$HESTIA/data/templates/web/php-fpm/PHP-${version/\./_}.tpl" ]; then
	echo "ERROR: Specified PHP version is already installed."
	exit "$E_INVALID"
fi

# Check if php version is supported
if [[ ! "$multiphp_v" =~ $version ]]; then
	echo "ERROR: Specified PHP version is not supported or does not exist."
	exit "$E_INVALID"
fi

# Perform verification if read-only mode is enabled
check_hestia_demo_mode

#----------------------------------------------------------#
#                       Action                             #
#----------------------------------------------------------#
mph=""
php_modules_install="mysqlnd mysqli pdo_mysql pgsql pdo sqlite pdo_sqlite pdo_pgsql imap ldap zip opcache xmlwriter xmlreader gd intl pspell"
php_modules_disable=""
if [ "$LOCAL_PHP" == "yes" ]; then
	mph="brepo-php$version brepo-php$version-fpm"
	if ! echo "$DB_SYSTEM" | grep -w 'pgsql' > /dev/null; then
		php_modules_install=$(echo "$php_modules_install" | sed -e "s/pgsql//")
		php_modules_install=$(echo "$php_modules_install" | sed -e "s/pdo_pgsql//")
		php_modules_disable="$php_modules_disable pgsql pdo_pgsql"
	fi
else
	# Packages in Remi repo have names with php$version-php- prefixes
	mph="php$version-php-fpm php$version-php-cgi php$version-php-mysqlnd php$version-php-pgsql
		php$version-php-pdo php$version-php-common php$version-php-pecl-imagick php$version-php-imap
		php$version-php-ldap php$version-php-pecl-apcu php$version-php-pecl-zip php$version-php-cli
		php$version-php-opcache php$version-php-xml php$version-php-gd php$version-php-intl
		php$version-php-mbstring php$version-php-pspell php$version-php-readline"
	if [ "$version" = "56" ]; then
		mph=$(sed -e "s/php$version-php-pecl-apcu//")
	fi

	# Check is version is 7.1 or below to add mcrypt
	if [[ $(echo "$version 7.2" | awk '{print ($1 < $2)}') == 1 ]]; then
		mph="$mph php$version-mcrypt"
	fi

	# Check if version is 8.0 or higher and drop php json.
	if [[ ${version:0:1} == "8" ]]; then
		mph=$(echo "$mph" | sed -e "s/php$version\(-php\)\{0,1\}-json//")
	fi

	if ! echo "$DB_SYSTEM" | grep -w 'mysql' > /dev/null; then
		mph=$(echo "$mph" | sed -e "s/php$version\(-php\)\{0,1\}-mysql//")
	fi

	if ! echo "$DB_SYSTEM" | grep -w 'pgsql' > /dev/null; then
		mph=$(echo "$mph" | sed -e "s/php$version\(-php\)\{0,1\}-pgsql//")
	fi
fi

# Install php packages
dnf install -q -y $mph > /dev/null 2>&1 &
BACK_PID=$!

# Check if package installation is done, print a spinner
echo "Installing PHP-$version, please wait..."
spinner="/-\|"
spin_i=1
while kill -0 $BACK_PID > /dev/null 2>&1; do
	printf "\b${spinner:spin_i++%${#spinner}:1}"
	sleep 0.5
done

# Do a blank echo to get the \n back
echo

if [ "$LOCAL_PHP" == "yes" ]; then
	for mod in $php_modules_install; do
		fn_enable_local_php_extension "$version" "$mod"
	done
	for mod in $php_modules_disable; do
		fn_disable_local_php_extension "$version" "$mod"
	done
fi

# Check if installation was successful
if [ ! -f "$php_fpm" ]; then
	echo "ERROR: Installation failed, please run the following command manually for debugging:"
	echo "dnf install $mph"
fi

if [ "$LOCAL_PHP" == "yes" ]; then
	result_alt_php=$(alternatives --display php | grep /opt/brepo/php${version}/bin/php)
	if [ -z "$result_alt_php" ]; then
		alternatives --install /usr/bin/php php /opt/brepo/php${version}/bin/php 1 > /dev/null 2>&1
	fi
else
	result_alt_php=$(alternatives --display php | grep /usr/bin/php$version)
	if [ -z "$result_alt_php" ]; then
		alternatives --install /usr/bin/php php /usr/bin/php$version 1 > /dev/null 2>&1
	fi
fi

# Check if required modules for apache2 are enabled
if [ "$WEB_SYSTEM" = "httpd" ]; then
	if ! httpd -M | grep 'proxy_fcgi_module' ; then
		sed 's/#LoadModule proxy_fcgi_module/LoadModule proxy_fcgi_module/' -i /etc/httpd/conf.modules.d/00-proxy.conf
		sed 's/#LoadModule proxy_module/LoadModule proxy_module/' -i /etc/httpd/conf.modules.d/00-proxy.conf
	fi
	if ! httpd -M | grep 'setenvif_module' ; then
		sed 's/#LoadModule setenvif_module/LoadModule setenvif_module/' -i /etc/httpd/conf.modules.d/00-base.conf
	fi

	$BIN/v-restart-web "yes"
fi

# Configure fpm
v_tpl=${version//./}
if [ "$LOCAL_PHP" == "yes" ]; then
	systemctl enable brepo-php-fpm${version}.service
	rm -f /opt/brepo/php${version}/etc/php-fpm.d/*
	cp -f $HESTIA_INSTALL_DIR/php-fpm/dummy.conf /opt/brepo/php${version}/etc/php-fpm.d/
	sed -i "s/9999/99$v_tpl/g" /opt/brepo/php${version}/etc/php-fpm.d/dummy.conf

	# Increase max upload and max post size
	sed -i "s/upload_max_filesize = 2M/upload_max_filesize = 100M/g" /opt/brepo/php${version}/etc/php.ini
	sed -i "s/post_max_size = 8M/post_max_size = 100M/g" /opt/brepo/php${version}/etc/php.ini
	sed -i "s/max_execution_time = 30/max_execution_time = 60/g" /opt/brepo/php${version}/etc/php.ini
else
	systemctl enable php${version}-php-fpm
	rm -f /etc/opt/remi/php${version}/php-fpm.d/*
	cp -f $HESTIA_INSTALL_DIR/php-fpm/dummy.conf /etc/opt/remi/php${version}/php-fpm.d/
	sed -i "s/9999/99$v_tpl/g" /etc/opt/remi/php${version}/php-fpm.d/dummy.conf

	# Increase max upload and max post size
	sed -i "s/upload_max_filesize = 2M/upload_max_filesize = 100M/g" /etc/opt/remi/php${version}/php.ini
	sed -i "s/post_max_size = 8M/post_max_size = 100M/g" /etc/opt/remi/php${version}/php.ini
	sed -i "s/max_execution_time = 30/max_execution_time = 60/g" /etc/opt/remi/php${version}/php.ini
fi

# Install backend template
cp -f $HESTIA_INSTALL_DIR/php-fpm/multiphp.tpl \
	$HESTIA/data/templates/web/php-fpm/PHP-${version/\./_}.tpl

#----------------------------------------------------------#
#                       Hestia                             #
#----------------------------------------------------------#

# Logging
$BIN/v-log-action "system" "Info" "System" "Installed PHP $version."
log_event "$OK" "$ARGUMENTS"

exit
