#!/bin/bash

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

source /usr/share/yunohost/helpers

#=================================================
# 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 $app domain)
is_public=$(ynh_app_setting_get $app is_public)
path_url=$(ynh_app_setting_get $app path)
final_path="/var/www/$app"
data_path="/home/yunohost.app/$app"
logs_path="/var/log/$app"
db_name="$app"
db_user="mmuser"
mattermost_user="$app"

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

ynh_webpath_available $domain $path_url \
  || ynh_die "Path not available: ${domain}"
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"

#=================================================
# RESTORE THE APP MAIN DIR
#=================================================

ynh_restore_file "$final_path"

#=================================================
# RESTORE THE APP DATA
#=================================================

ynh_restore_file "$data_path"

#=================================================
# RESTORE THE MYSQL DATABASE
#=================================================

db_pwd=$(ynh_app_setting_get $app mysqlpwd)
ynh_mysql_setup_db "$db_user" "$db_name" "$db_pwd"
ynh_mysql_connect_as "$db_user" "$db_pwd" "$db_name" < ./db.sql

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

# Create the dedicated user (if not existing)
mattermost_user="$app"
if ! ynh_system_user_exists "$mattermost_user"; then
  mattermost_user_password=$(ynh_app_setting_get $app smtppwd)
  useradd -M --shell /bin/false -p $(openssl passwd -1 "$mattermost_user_password") "$mattermost_user"
fi

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

# Restore permissions on app files
sudo chown -R "$mattermost_user:www-data" "$final_path"

mkdir -p "$data_path"
sudo chown -R "$mattermost_user:www-data" "$data_path"

mkdir -p "$logs_path"
sudo chown -R "$mattermost_user:adm" "$logs_path"

#=================================================
# RESTORE SSOWAT
#=================================================

if [[ $is_public == "1" ]]; then
  # Make the app accessible to the public
  ynh_app_setting_set "$app" unprotected_uris "/"
else
  # Remove the public access
  ynh_app_setting_delete "$app" skipped_uris
fi

#=================================================
# SPECIFIC RESTORATION
#=================================================
# RESTORE SYSTEMD
#=================================================

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

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

sudo yunohost service add "$app" --log "$logs_path/mattermost.log"

#=================================================
# GENERIC FINALIZATION
#=================================================
# RELOAD NGINX
#=================================================

sudo service nginx reload

#=================================================
# START SERVER
#=================================================

sudo systemctl start "$app"