#!/bin/bash

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

# Keep this path for calling _common.sh inside the execution's context of backup and restore scripts
source ../settings/scripts/_common.sh
source ../settings/scripts/ynh_mongo_db__2
source ../settings/scripts/ynh_java
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.
	true
}
# Exit if an error occurs during the execution of the script
ynh_abort_if_errors

#=================================================
# LOAD SETTINGS
#=================================================
ynh_script_progression --message="Loading installation settings..." --weight=1

app=$YNH_APP_INSTANCE_NAME

domain=$(ynh_app_setting_get --app=$app --key=domain)
path_url=$(ynh_app_setting_get --app=$app --key=path)
final_path=$(ynh_app_setting_get --app=$app --key=final_path)
db_user=$(ynh_app_setting_get --app=$app --key=db_user)
html_path=$(ynh_app_setting_get --app=$app --key=html_path)
document_path=$(ynh_app_setting_get --app=$app --key=document_path)
public_key=$(ynh_app_setting_get --app=$app --key=public_key)

#=================================================
# CHECK IF THE APP CAN BE RESTORED
#=================================================
ynh_script_progression --message="Validating restoration parameters..." --weight=1

test ! -d $final_path \
	|| ynh_die --message="There is already a directory: $final_path "

#=================================================
# STANDARD RESTORATION STEPS
#=================================================
# RECREATE THE DEDICATED USER
#=================================================
ynh_script_progression --message="Recreating the dedicated system user..." --weight=1

# Create the dedicated user (if not existing)
ynh_system_user_create --username=$app --home_dir="$final_path" --use_shell --groups="ssh.app"

#=================================================
# RESTORE THE APP MAIN DIR
#=================================================
ynh_script_progression --message="Restoring the app main directory..." --weight=1

ynh_restore_file --origin_path="$final_path"

# FIXME: this should be managed by the core in the future
# Here, as a packager, you may have to tweak the ownerhsip/permissions
# such that the appropriate users (e.g. maybe www-data) can access
# files in some cases.
# But FOR THE LOVE OF GOD, do not allow r/x for "others" on the entire folder -
# this will be treated as a security issue.
chmod 750 "$final_path"
chmod -R o-rwx "$final_path"
chown -R $app:$app "$final_path"

#Make sure the .ssh and files have the correct access rights
if [ -n "$public_key" ]
then
  chown -R $app:$app "$final_path/.ssh"
  chmod 700 "$final_path/.ssh"
  chmod 600 "$final_path/.ssh/authorized_keys"
  # Enable restart of services for the dont-code user
  chown $app:$app "$final_path/restart-services.sh"
  chmod o-rwx,gu=rwx "$final_path/restart-services.sh"

  ynh_restore_file --origin_path="/etc/sudoers.d/$app-sudoers"

  chown root:root "/etc/sudoers.d/$app-sudoers"
  chmod o-rwx,gu=r "/etc/sudoers.d/$app-sudoers"
fi

#=================================================
# RESTORE THE DOCUMENTS DIRECTORY
#=================================================
ynh_script_progression --message="Restoring the html directory..." --weight=1

ynh_restore_file --origin_path="$html_path" --not_mandatory

mkdir -p $document_path

# FIXME: this should be managed by the core in the future
# Here, as a packager, you may have to tweak the ownerhsip/permissions
# such that the appropriate users (e.g. maybe www-data) can access
# files in some cases.
# But FOR THE LOVE OF GOD, do not allow r/x for "others" on the entire folder -
# this will be treated as a security issue.
chmod 750 "$html_path"
chmod -R o-rwx "$html_path"
chown -R $app:www-data "$html_path"

#=================================================
# SPECIFIC RESTORATION
#=================================================
# REINSTALL DEPENDENCIES
#=================================================
ynh_script_progression --message="Reinstalling dependencies..." --weight=1

# Install the required version of Java
ynh_install_java --java_version=$java_version --jdk_type=jre

# Define and install dependencies
ynh_install_app_dependencies $pkg_dependencies

# Install the required version of Mongo
ynh_install_mongo --mongo_version=$mongo_version

#=================================================
# RESTORE THE NGINX CONFIGURATION
#=================================================
ynh_script_progression --message="Restoring the NGINX web server configuration..." --weight=1

ynh_restore_file --origin_path="/etc/nginx/conf.d/$domain.d/$app.conf"

#=================================================
# RESTORE THE MONGO DATABASES
#=================================================
ynh_script_progression --message="Restoring the Mongo databases..." --weight=1

db_pwd=$(ynh_app_setting_get --app=$app --key=db_pwd)
ynh_mongo_setup_db --db_user=$db_user --db_name=${MONGO_DB_LIST[0]} --db_pwd=$db_pwd

for db_name in "${MONGO_DB_LIST[@]}"
do
  ynh_mongo_restore_db --database="$db_name" < ./dump-${db_name}.bson
done

#=================================================
# RESTORE VARIOUS FILES
#=================================================
ynh_script_progression --message="Restoring various files..." --weight=1

# ynh_restore_file --origin_path="/etc/cron.d/$app"

#=================================================
# RESTORE SYSTEMD
#=================================================
ynh_script_progression --message="Restoring the systemd configuration..." --weight=1

for service_name in "${SERVICES_LIST[@]}"
do
  ynh_restore_file --origin_path="/etc/systemd/system/${app}-${service_name}.service"
  systemctl enable "${app}-${service_name}.service" --quiet
done

#=================================================
# RESTORE THE LOGROTATE CONFIGURATION
#=================================================
ynh_script_progression --message="Restoring the logrotate configuration..." --weight=1

ynh_restore_file --origin_path="/etc/logrotate.d/$app"

mkdir --parents /var/log/$app
chown $app:adm /var/log/$app

#=================================================
# INTEGRATE SERVICES IN YUNOHOST
#=================================================
ynh_script_progression --message="Integrating services in YunoHost..." --weight=1

for service_name in "${SERVICES_LIST[@]}"
do
  yunohost service add "${app}-${service_name}" --description="Dont-code platform ${service_name} service" --log="/var/log/${app}/${service_name}-${app}.log"
done

#=================================================
# START SYSTEMD SERVICE
#=================================================
ynh_script_progression --message="Starting systemd services..." --weight=1

for service_name in "${SERVICES_LIST[@]}"
do
  ynh_systemd_action --service_name="${app}-${service_name}" --action="start" --log_path="/var/log/$app/$app.log"
done

#=================================================
# GENERIC FINALIZATION
#=================================================
# RELOAD NGINX
#=================================================
ynh_script_progression --message="Reloading NGINX web server..." --weight=1

ynh_systemd_action --service_name=nginx --action=reload

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

ynh_script_progression --message="Restoration completed for $app" --last