#!/bin/bash

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

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

#=================================================
# MANAGE SCRIPT FAILURE
#=================================================

# Exit if an error occurs during the execution of the script
ynh_abort_if_errors

#=================================================
# RETRIEVE ARGUMENTS FROM THE MANIFEST
#=================================================

domain=$YNH_APP_ARG_DOMAIN
path_url="/"
admin=$YNH_APP_ARG_ADMIN
database=$YNH_APP_ARG_DATABASE

app=$YNH_APP_INSTANCE_NAME

email=$(ynh_user_get_info --username=$admin --key=mail)
upload="256M"
random_string="$(ynh_string_random --length=48)"

#=================================================
# CHECK IF THE APP CAN BE INSTALLED WITH THESE ARGS
#=================================================
ynh_script_progression --message="Validating installation parameters..."

final_path=/var/www/$app
test ! -e "$final_path" || ynh_die --message="This path already contains a folder"

# Register (book) web path
ynh_webpath_register --app=$app --domain=$domain --path_url=$path_url

#=================================================
# STORE SETTINGS FROM MANIFEST
#=================================================
ynh_script_progression --message="Storing installation settings..."

ynh_app_setting_set --app=$app --key=domain --value=$domain
ynh_app_setting_set --app=$app --key=path --value=$path_url
ynh_app_setting_set --app=$app --key=admin --value=$admin
ynh_app_setting_set --app=$app --key=database --value=$database
ynh_app_setting_set --app=$app --key=email --value=$email
ynh_app_setting_set --app=$app --key=upload --value=$upload
ynh_app_setting_set --app=$app --key=random_string --value=$random_string

#=================================================
# STANDARD MODIFICATIONS
#=================================================
# INSTALL DEPENDENCIES
#=================================================
ynh_script_progression --message="Installing dependencies..."

if [ $database = "postgresql" ]; then
	pkg_dependencies="$pkg_dependencies $pg_pkg_dependencies"
fi
ynh_exec_warn_less ynh_install_app_dependencies $pkg_dependencies

#=================================================
# CREATE DEDICATED USER
#=================================================
ynh_script_progression --message="Configuring system user..."

# Create a system user
ynh_system_user_create --username=$app --home_dir="$final_path"

#=================================================
# CREATE A DATABASE
#=================================================

db_name=$(ynh_sanitize_dbid --db_name=$app)
db_user=$db_name
ynh_app_setting_set --app=$app --key=db_name --value=$db_name

if [ $database = "mysql" ]; then
	ynh_script_progression --message="Creating a MySQL database..."
	ynh_mysql_setup_db --db_user=$db_user --db_name=$db_name
	db_type=0
elif [ $database = "postgresql" ]; then
	ynh_script_progression --message="Creating a PostgreSQL database..."
	ynh_psql_test_if_first_run
	ynh_psql_setup_db --db_user=$db_user --db_name=$db_name
	db_type=1
fi

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

ynh_app_setting_set --app=$app --key=final_path --value=$final_path
# Download, check integrity, uncompress and patch the source from app.src
ynh_setup_source --dest_dir="$final_path"
ynh_setup_source --dest_dir="$final_path/addon" --source_id="app_addons"
touch "$final_path/php.log"
mkdir -p "$final_path/store"
mkdir -p  "$final_path/cache/smarty3"

chmod 750 "$final_path"
chmod -R o-rwx "$final_path"
chown -R $app:www-data "$final_path"
chmod -R 775 $final_path/store $final_path/cache

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

# Create a dedicated PHP-FPM config
ynh_add_fpm_config
phpversion=$(ynh_app_setting_get --app=$app --key=phpversion)

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

# Create a dedicated NGINX config
ynh_add_nginx_config

#=================================================
# SPECIFIC SETUP
#=================================================
# PROVISION DATABASE
#=================================================
ynh_script_progression --message="Provisionning database..."

if [ $database = "mysql" ]; then
	ynh_mysql_connect_as --user="$db_name" --password="$db_pwd" --database="$db_name" < $final_path/install/schema_mysql.sql
elif [ $database = "postgresql" ]; then
	ynh_psql_connect_as --user="$db_name" --password="$db_pwd" --database="$db_name" < $final_path/install/schema_postgres.sql
fi

#=================================================
# ADD A CONFIGURATION
#=================================================
ynh_script_progression --message="Adding a configuration file..."

ynh_add_config --template="../conf/htconfig.sample.php" --destination="$final_path/.htconfig.php"

# addon ldap config
ynh_script_progression --message="Push LDAP configuration to .htconfig.php..."

cat ../conf/ldap_conf.php >> $final_path/.htconfig.php
ynh_store_file_checksum --file=$final_path/.htconfig.php

chmod 600 "$final_path/.htconfig.php"
chown $app:$app "$final_path/.htconfig.php"

#=================================================
# SET CRON JOB
#=================================================
ynh_script_progression --message="Setuping cron job..."

# Set up cron job
ynh_add_config --template="../conf/poller-cron" --destination="/etc/cron.d/$app"
chown root: "/etc/cron.d/$app"
chmod 644 "/etc/cron.d/$app"

#=================================================
# GENERIC FINALIZATION
#=================================================
# SETUP LOGROTATE
#=================================================
ynh_script_progression --message="Configuring log rotation..."

# Use logrotate to manage application logfile(s)
ynh_use_logrotate "$final_path/php.log"

#=================================================
# SETUP FAIL2BAN
#=================================================
ynh_script_progression --message="Configuring Fail2Ban..."

# Create a dedicated Fail2Ban config
ynh_add_fail2ban_config --logpath="$final_path/php.log" --failregex="^.*auth\.php.*failed login attempt.*from IP <HOST>.*$" --max_retry="5"

#=================================================
# SETUP SSOWAT
#=================================================
ynh_script_progression --message="Configuring permissions..."

ynh_permission_update --permission="main" --add="visitors"

#=================================================
# RELOAD NGINX
#=================================================
ynh_script_progression --message="Reloading NGINX web server..."

ynh_systemd_action --service_name=nginx --action=reload

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

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