#!/bin/bash

#=================================================
# GENERIC START
#=================================================
# IMPORT GENERIC HELPERS
#=================================================

source _common.sh
source /usr/share/yunohost/helpers

#=================================================
# CHECK IF THE APP CAN BE INSTALLED WITH THESE ARGS
#=================================================

if [ "$path" == "/" ] && [ $multisite -eq 1 ]; then
	ynh_die --message="Multisite option of WordPress doesn't work at the root of a domain."
fi

#=================================================
# STORE SETTINGS FROM MANIFEST
#=================================================

ynh_app_setting_set --app=$app --key=language --value=$language
ynh_app_setting_set --app=$app --key=multisite --value=$multisite

#=================================================
# DOWNLOAD, CHECK AND UNPACK SOURCE
#=================================================
ynh_script_progression --message="Setting up source files..." --weight=4

# Download, check integrity, uncompress and patch the source from app.src
ynh_setup_source --dest_dir="$install_dir"

#=================================================
# NGINX CONFIGURATION
#=================================================
ynh_script_progression --message="Configuring NGINX web server..." --weight=3

# Create a dedicated NGINX config
ynh_add_nginx_config

#=================================================
# PHP-FPM CONFIGURATION
#=================================================
ynh_script_progression --message="Configuring PHP-FPM..." --weight=2

fpm_footprint="medium"
fpm_free_footprint=0

# If the app is private, set the usage to low, otherwise to high.
if [ $is_public -eq 0 ]
then
    fpm_usage="low"
else
    fpm_usage="high"
fi

ynh_app_setting_set --app=$app --key=fpm_footprint --value=$fpm_footprint
ynh_app_setting_set --app=$app --key=fpm_free_footprint --value=$fpm_free_footprint
ynh_app_setting_set --app=$app --key=fpm_usage --value=$fpm_usage

# Create a dedicated PHP-FPM config
ynh_add_fpm_config --usage=$fpm_usage --footprint=$fpm_footprint

#=================================================
# SPECIFIC SETUP
#=================================================
# CONFIGURE WP-CONFIG
#=================================================
ynh_script_progression --message="Configuring WordPress..." --weight=1

# Change variables in Wordpress configuration
dir=__DIR__
ynh_add_config --template="../conf/wp-config.php" --destination="$install_dir/wp-config.php"

for i in 1 2 3 4 5 6 7 8
do
	j=$(ynh_string_random --length=40)
	ynh_replace_string --match_string="KEY$i" --replace_string="$j" --target_file=$install_dir/wp-config.php
	sleep 0.5
done

#=================================================
# SETTING UP WITH CURL
#=================================================
ynh_script_progression --message="Installing wordpress with cURL..." --weight=10

# Set right permissions for cURL install
chown -R $app: $install_dir

# Regen SSOwat configuration
yunohost app ssowatconf

# Reload NGINX
ynh_systemd_action --service_name=nginx --action=reload

# Wordpress installation
ynh_local_curl "/wp-admin/install.php?step=2" "&weblog_title=YunoBlog" "user_name=$admin" "admin_password=$db_pwd" "admin_password2=$db_pwd" "admin_email=$admin@$domain" "Submit=Install+WordPress"

ynh_print_info --message="Please wait during Wordpress installation..."
for i in `seq 1 300`
do
	# The loop waits for WordPress to be installed, or 5 minutes.
	if ynh_mysql_connect_as --user=$db_name --password=$db_pwd --database=$db_name <<< "show tables" | grep --quiet "wp_options"; then
		# If the table wp_options is found, WordPress has finished its installation.
		break
	fi
	sleep 1
done

#=================================================
# INSTALL WORDPRESS PLUGINS
#=================================================
ynh_script_progression --message="Installing WordPress plugins..." --weight=20

ynh_exec_warn_less wget --no-verbose https://raw.githubusercontent.com/wp-cli/builds/gh-pages/phar/wp-cli.phar --output-document=$install_dir/wp-cli.phar
wpcli_alias="php$phpversion $install_dir/wp-cli.phar --allow-root --path=$install_dir"

$wpcli_alias plugin install authldap
$wpcli_alias plugin install http-authentication
$wpcli_alias plugin install companion-auto-update
$wpcli_alias plugin install wp-fail2ban-redux

#=================================================
# SET LANGUAGE
#=================================================
ynh_script_progression --message="Configuring language..." --weight=3

$wpcli_alias core language install $language
$wpcli_alias site switch-language $language

#=================================================
# CONFIGURE MULTISITE
#=================================================

if [ $multisite -eq 1 ]
then
	ynh_script_progression --message="Configuring multisite..." --weight=2

	ynh_replace_string --match_string="#--MULTISITE--" --replace_string="" --target_file=/etc/nginx/conf.d/$domain.d/$app.conf
	# Allow multisite
	ynh_replace_string --match_string="//--MULTISITE1--define" --replace_string="define " --target_file=$install_dir/wp-config.php

	# Activate multisite via wp-cli
	ynh_exec_fully_quiet $wpcli_alias core multisite-convert --base=$path/

	# Activate multisite in wordpress config
	ynh_replace_string --match_string="//--MULTISITE2--define" --replace_string="define" --target_file=$install_dir/wp-config.php

	db_prefix="wp_"
	ynh_replace_string --match_string="__DB_PREFIX__" --replace_string="$db_prefix" --target_file=../conf/sql/multisite.sql
	ynh_replace_string --match_string="__APP__" --replace_string="$app" --target_file=../conf/sql/multisite.sql
	ynh_replace_string --match_string="__LENGTH__" --replace_string="$((${#app} + 108))" --target_file=../conf/sql/multisite.sql

	ynh_mysql_connect_as --user=$db_name --password=$db_pwd --database=$db_name < ../conf/sql/multisite.sql
	plugin_network="--network"
else
	db_prefix="wp_"
	ynh_replace_string --match_string="__DB_PREFIX__" --replace_string="$db_prefix" --target_file=../conf/sql/single.sql
	ynh_replace_string --match_string="__APP__" --replace_string="$app" --target_file=../conf/sql/single.sql
	ynh_replace_string --match_string="__LENGTH__" --replace_string="$((${#app} + 108))" --target_file=../conf/sql/single.sql

	ynh_mysql_connect_as --user=$db_name --password=$db_pwd --database=$db_name < ../conf/sql/single.sql
	plugin_network=""
fi

#=================================================
# ACTIVATE WORDPRESS PLUGINS
#=================================================
ynh_script_progression --message="Activating plugins..." --weight=4

$wpcli_alias plugin activate authldap $plugin_network
# Do not activate http-authentication, this plugin is sometimes unstable
$wpcli_alias plugin activate companion-auto-update $plugin_network
$wpcli_alias plugin activate wp-fail2ban-redux $plugin_network

# Set file and directories ownership
mkdir -p $install_dir/wp-content/uploads
mkdir -p $install_dir/wp-content/temp
chown -R $app:www-data "$install_dir"
find "$install_dir" -type d -exec chmod 750 {} \;
find "$install_dir" -type f -exec chmod 640 {} \;
find "$install_dir/wp-content/uploads" -type d -exec chmod 770 {} \;
find "$install_dir/wp-content/temp" -type d -exec chmod 770 {} \;
setfacl -Rm d:g:www-data:rwX "$install_dir/wp-content/uploads"
setfacl -Rm d:g:www-data:rwX "$install_dir/wp-content/temp"

#=================================================
# STORE THE CONFIG FILE CHECKSUM
#=================================================

# Calculate and store the config file checksum into the app settings
ynh_store_file_checksum --file="$install_dir/wp-config.php"

chmod 400 "$install_dir/wp-config.php"
chown $app:$app "$install_dir/wp-config.php"

#=================================================
# CREATE A CRON TASK FOR AUTOMATIC UPDATE
#=================================================

echo "# Reach everyday wp-cron.php to trig the internal WordPress cron.
0 3  *  *  * $app php$phpversion  $install_dir/wp-cron.php" > /etc/cron.d/$app

#=================================================
# GENERIC FINALISATION
#=================================================
# SETUP FAIL2BAN
#=================================================
ynh_script_progression --message="Configuring Fail2Ban..." --weight=7

# Create a dedicated Fail2Ban config
ynh_add_fail2ban_config --logpath="/var/log/auth.log" --failregex="Authentication (attempt for unknown user|failure for) .* from <HOST>" --max_retry=5

#=================================================
# REMOVE WP-CLI.PHAR
#=================================================

ynh_secure_remove --file=$install_dir/wp-cli.phar

#=================================================
# END OF SCRIPT
#=================================================

ynh_script_progression --message="Installation of $app completed" --last