#!/bin/bash

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

if [ ! -e _common.sh ]; then
	# Get the _common.sh file if it's not in the current directory
	cp ../settings/scripts/_common.sh ./_common.sh
	cp ../settings/scripts/psql.sh ./psql.sh
	chmod a+rx _common.sh psql.sh
fi

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


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

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

#=================================================
# LOAD 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" psql_db)
db_pwd=$(ynh_app_setting_get "$app" psqlpwd)
cache=$(ynh_app_setting_get "$app" cache)


#=================================================
# CHECK IF THE APP CAN BE RESTORED
#=================================================

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_restore_file "$final_path"

# Open this port
yunohost firewall allow Both "$port" 2>&1

#=================================================
# RECREATE THE DEDICATED USER
#=================================================

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

#=================================================
# SPECIFIC RESTORATION
#=================================================
# REINSTALL DEPENDENCIES
#=================================================


# Add erlang for Debian Jessie 

if [ "$(lsb_release --codename --short)" == "jessie" ]; then
	echo "deb http://packages.erlang-solutions.com/debian jessie contrib" | tee /etc/apt/sources.list.d/erlang-solutions.list
elif 
	[ "$(lsb_release --codename --short)" == "stretch" ]; then
	echo "deb http://packages.erlang-solutions.com/debian stretch contrib" | tee /etc/apt/sources.list.d/erlang-solutions.list
fi
sudo wget https://packages.erlang-solutions.com/debian/erlang_solutions.asc
sudo apt-key add erlang_solutions.asc
sudo rm erlang_solutions.asc

# install dependencies
ynh_install_app_dependencies git build-essential postgresql postgresql-contrib openssl g++ apt-transport-https erlang-inets elixir erlang-dev erlang-parsetools erlang-xmerl erlang-tools

#=================================================
# RESTORE 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 $app;"
ynh_psql_execute_as_root "\connect $db_name 
CREATE EXTENSION IF NOT EXISTS unaccent;CREATE EXTENSION IF NOT EXISTS pg_trgm;"
ynh_psql_execute_as_root "\connect $db_name 
CREATE EXTENSION IF NOT EXISTS unaccent;CREATE EXTENSION IF NOT EXISTS citext;"
ynh_psql_execute_file_as_root ./db.sql "$db_name"

#=================================================
# RESTORE SYSTEMD
#=================================================

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

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

# Set right permissions 
chown -R "$app":"$app" "$final_path"

#=================================================
# GENERIC FINALIZATION
#=================================================
# RELOAD NGINX AND START PLEROMA
#=================================================

systemctl reload nginx
systemctl enable "$app"
systemctl start "$app"
# App needs time to start
sleep 10