#!/bin/bash

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

source ../settings/scripts/_common.sh
source ../settings/scripts/ynh_systemd_action
source /usr/share/yunohost/helpers

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

ynh_clean_setup () {
	#### Remove this function if there's nothing to clean before calling the remove script.
	ynh_clean_check_starting
}
# Exit if an error occurs during the execution of the script
ynh_abort_if_errors

#=================================================
# LOAD SETTINGS
#=================================================
ynh_print_info "Loading settings..."

app=$YNH_APP_INSTANCE_NAME

domain=$(ynh_app_setting_get $app domain)
path_url="/"
final_path=$(ynh_app_setting_get $app final_path)
port=$(ynh_app_setting_get $app port)
db_name=$(ynh_app_setting_get $app db_name)
db_pwd=$(ynh_app_setting_get $app db_pwd)
cache=$(ynh_app_setting_get $app cache)


#=================================================
# CHECK IF THE APP CAN BE RESTORED
#=================================================
ynh_print_info "Validating restoration parameters..."

ynh_webpath_available $domain $path_url \
	|| ynh_die "Path not available: ${domain}${path_url}"
test ! -d $final_path \
	|| ynh_die "There is already a directory: $final_path "

#=================================================
# STANDARD RESTORATION STEPS
#=================================================
# RESTORE THE NGINX CONFIGURATION
#=================================================

ynh_restore_file "/etc/nginx/conf.d/$domain.d/$app.conf"
if [ $cache -eq 1 ]
then
	ynh_restore_file "/etc/nginx/conf.d/$app-cache.conf"
fi

#=================================================
# RESTORE THE APP MAIN DIR
#=================================================
ynh_print_info "Restoring the app main directory..."

ynh_restore_file "$final_path"

#=================================================
# RECREATE THE DEDICATED USER
#=================================================
ynh_print_info "Recreating the dedicated system user..."

# Create the dedicated user (if not existing)
ynh_system_user_create "$app" "$final_path"

#=================================================
# RESTORE USER RIGHTS
#=================================================

# Restore permissions on app files
chown -R "$app":"$app" "$final_path"

#=================================================
# RESTORE THE PHP-FPM CONFIGURATION
#=================================================

#ynh_restore_file "/etc/php/7.0/fpm/pool.d/$app.conf"

#=================================================
# SPECIFIC RESTORATION
#=================================================
# INSTALL ERLANG and ELIXIR
#=================================================
ynh_print_info "Installing erlang and elixir ..."

if [ "$(lsb_release --codename --short)" == "jessie" ]; then
	sudo apt install -y ../settings/conf/esl-erlang_21.2.6-1~debian~jessie_amd64.deb
	sudo apt install -y ../settings/conf/elixir_1.8.1-2~debian~jessie_amd64.deb
elif 
	[ "$(lsb_release --codename --short)" == "stretch" ]; then
	sudo apt install -y ../settings/conf/esl-erlang_21.2.6-1~debian~stretch_amd64.deb
	sudo apt install -y ../settings/conf/elixir_1.8.1-2~debian~stretch_amd64.deb
fi

#=================================================
# REINSTALL DEPENDENCIES
#=================================================
ynh_print_info "Reinstalling dependencies..."

# Define and install dependencies
ynh_install_app_dependencies $pkg_dependencies

#=================================================
# RESTORE THE POSTGRESQL DATABASE
#=================================================
ynh_print_info "Restoring the PostgreSQL database..."

ynh_psql_test_if_first_run
ynh_psql_create_user "$app" "$db_pwd"
ynh_psql_execute_as_root "CREATE DATABASE $db_name ENCODING 'UTF8' LC_COLLATE='C' LC_CTYPE='C' template=template0 OWNER $db_name;"
ynh_psql_execute_as_root "\connect $db_name 
CREATE EXTENSION IF NOT EXISTS unaccent;"
ynh_psql_execute_as_root "\connect $db_name 
CREATE EXTENSION IF NOT EXISTS pg_trgm;"
ynh_psql_execute_as_root "\connect $db_name 
CREATE EXTENSION IF NOT EXISTS citext;"
ynh_psql_execute_as_root "\connect $db_name 
CREATE EXTENSION IF NOT EXISTS \"uuid-ossp\";"
ynh_psql_execute_file_as_root ./db.sql "$db_name"

#=================================================
# RESTORE SYSTEMD
#=================================================
ynh_print_info "Restoring the systemd configuration..."

ynh_restore_file "/etc/systemd/system/$app.service"
systemctl enable $app.service
systemctl daemon-reload

#=================================================
# ADVERTISE SERVICE IN ADMIN PANEL
#=================================================

yunohost service add $app --description "$app daemon for Pleroma" --log "/var/log/$app/$app.log"

#=================================================
# RESTORE THE CRON FILE
#=================================================

#ynh_restore_file "/etc/cron.d/$app"

#=================================================
# RESTORE THE LOGROTATE CONFIGURATION
#=================================================

ynh_restore_file "/etc/logrotate.d/$app"

#=================================================
# GENERIC FINALIZATION
#=================================================
# RELOAD NGINX AND PHP-FPM
#=================================================
ynh_print_info "Reloading nginx web server and php-fpm..."

#systemctl reload php7.0-fpm
systemctl reload nginx

#=================================================
# START SERVICE
#=================================================

ynh_systemd_action --action=start --service_name=$app --log_path=systemd --line_match="Running Pleroma.Web.Endpoint"

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

ynh_print_info "Restoration completed for $app"