#!/bin/bash

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

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

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

app=$YNH_APP_INSTANCE_NAME

final_path=$(ynh_app_setting_get --app=$app --key=final_path)
domain=$(ynh_app_setting_get --app=$app --key=domain)
path_url=$(ynh_app_setting_get --app=$app --key=path_url)
port=$(ynh_app_setting_get --app=$app --key=port)
db_name=$(ynh_app_setting_get --app=$app --key=db_name)
language_key=$(ynh_app_setting_get --app=$app --key=language_key)
secret_key=$(ynh_app_setting_get --app=$app --key=secret_key)
utils_secret=$(ynh_app_setting_get --app=$app --key=utils_secret)
dex_app=$(ynh_app_setting_get --app=$app --key=dex_app)
dex_domain=$(ynh_app_setting_get --app=$app --key=dex_domain)
dex_path=$(ynh_app_setting_get --app=$app --key=dex_path)
oidc_secret=$(ynh_app_setting_get --app=$app --key=oidc_secret)
oidc_name=$(ynh_app_setting_get --app=$app --key=oidc_name)
oidc_callback=$(ynh_app_setting_get --app=$app --key=oidc_callback)
dex_auth_uri=$(ynh_app_setting_get --app=$app --key=dex_auth_uri)
dex_token_uri=$(ynh_app_setting_get --app=$app --key=dex_token_uri)
dex_user_uri=$(ynh_app_setting_get --app=$app --key=dex_user_uri)

#=================================================
# CHECK VERSION
#=================================================

upgrade_type=$(ynh_check_app_version_changed)

#=================================================
# BACKUP BEFORE UPGRADE THEN ACTIVE TRAP
#=================================================
ynh_script_progression --message="Backing up the app before upgrading (may take a while)..." --weight=1

# Ugly fix for an early mistake - to be removed with next upgrade
ynh_secure_remove --file="$final_path/outlinestorage"

# Backup the current version of the app
ynh_backup_before_upgrade
ynh_clean_setup () {
	# Restore it if the upgrade fails
	ynh_restore_upgradebackup
}
# Exit if an error occurs during the execution of the script
ynh_abort_if_errors

#=================================================
# STANDARD UPGRADE STEPS
#=================================================
# STOP SYSTEMD SERVICE
#=================================================
ynh_script_progression --message="Stopping a systemd service..." --weight=1

ynh_systemd_action --service_name=$app --action="stop" --log_path="/var/log/$app/$app.log"

#=================================================
# CREATE DEDICATED USER
#=================================================
ynh_script_progression --message="Making sure dedicated system user exists..." --weight=1

# Create a dedicated user (if not existing)
ynh_system_user_create --username=$app --home_dir="$final_path"

#=================================================
# DOWNLOAD, CHECK AND UNPACK SOURCE
#=================================================

if [ "$upgrade_type" == "UPGRADE_APP" ]
then	
	ynh_script_progression --message="Upgrading source files..." --weight=1

	# Download, check integrity, uncompress and patch the source from app.src
	ynh_secure_remove --file="$final_path"
	ynh_setup_source --dest_dir="$final_path"
fi

ynh_script_progression --message="Done" --weight=1

chmod 750 "$final_path"
chmod -R o-rwx "$final_path"
chown -R $app:www-data "$final_path"

#=======================================================
# MIGRATE MINIO BUCKET IF UPGRADING FROM AN OLD VERSION
#=======================================================

ynh_script_progression --message="Checking if a migration is needed"
if ynh_compare_current_package_version --comparison le --version 0.69.2.2~ynh1
then
	ynh_script_progression --message="Migrating MinIO data to local directory"
	
	minio_domain=$(ynh_app_setting_get --app=$app --key=minio_domain)
	minio_admin=$(ynh_app_setting_get --app=$app --key=minio_admin)
	minio_password=$(ynh_app_setting_get --app=$app --key=minio_password)
	mc_path=$(ynh_app_setting_get --app=$app --key=mc_path)

	mkdir -p "/var/lib/$app/data"
	chown -R minio:www-data "/var/lib/$app"
	ynh_exec_warn_less sudo -u minio $mc_path/mc mirror --preserve "minio/outlinestorage" "/var/lib/$app/data"

	chown -R $app:www-data "/var/lib/$app"
	ynh_script_progression --message="Data migration finished"
	ynh_script_progression --message="Data bucket was kept for safety, just in case !"
	ynh_script_progression --message="Don't forget to remove MinIO app if you don't use it !"
else
	ynh_script_progression --message="No migration to be done"
fi

#=================================================
# NGINX CONFIGURATION
#=================================================
ynh_script_progression --message="Upgrading NGINX web server configuration..." --weight=1

# Create a dedicated NGINX config
ynh_add_nginx_config

#=================================================
# UPGRADE DEPENDENCIES
#=================================================
ynh_script_progression --message="Upgrading dependencies..." --weight=1

ynh_exec_warn_less ynh_install_app_dependencies $pkg_dependencies

# Install Nodejs
ynh_exec_warn_less ynh_install_nodejs --nodejs_version=$NODEJS_VERSION 2>&1

# Install Yarn
ynh_install_extra_app_dependencies --repo="deb https://dl.yarnpkg.com/debian/ stable main" --package="yarn" --key="https://dl.yarnpkg.com/debian/pubkey.gpg" 2>&1

#=================================================
# UPGRADE YARN DEPENDENCIES
#=================================================
ynh_script_progression --message="Building Yarn dependencies... This can be very long, be patient !" --weight=10

pushd "$final_path"
	ynh_use_nodejs
	ynh_script_progression --message="Fetching Yarn production dependencies... This can be very long, be patient !" --weight=18
	ynh_exec_warn_less sudo -u $app env $ynh_node_load_PATH yarn install --frozen-lockfile --network-timeout 1000000000 2>&1
	ynh_script_progression --message="Building... This can be very long, be patient !" --weight=18
	ynh_exec_warn_less sudo -u $app env $ynh_node_load_PATH NODE_OPTIONS="--max-old-space-size=3900" yarn build 2>&1
	ynh_script_progression --message="Cleaning cache... " --weight=3
	ynh_exec_warn_less sudo -u $app env $ynh_node_load_PATH yarn cache clean 2>&1
popd

#=================================================
# UPDATE A CONFIG FILE
#=================================================
ynh_script_progression --message="Adding a configuration file..." --weight=1

ynh_add_config --template="../conf/.env" --destination="$final_path/.env"

chmod 400 "$final_path/.env"
chown $app:$app "$final_path/.env"

#=================================================
# RUN DB MIGRATION
#=================================================
ynh_script_progression --message="Running DB initial migration..."

pushd "$final_path"
	ynh_use_nodejs
	ynh_exec_warn_less sudo -u $app env $ynh_node_load_PATH yarn db:migrate
popd

#=================================================
# SETUP SYSTEMD
#=================================================
ynh_script_progression --message="Upgrading systemd configuration..." --weight=1

# Create a dedicated systemd config
ynh_add_systemd_config

#=================================================
# GENERIC FINALIZATION
#=================================================
# SETUP LOGROTATE
#=================================================
ynh_script_progression --message="Upgrading logrotate configuration..." --weight=1

# Use logrotate to manage app-specific logfile(s)
ynh_use_logrotate --non-append

#=================================================
# INTEGRATE SERVICE IN YUNOHOST
#=================================================
ynh_script_progression --message="Integrating service in YunoHost..." --weight=1

yunohost service add $app --description="Outline server" --log="/var/log/$app/$app.log"

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

ynh_systemd_action --service_name=$app --action="start" --log_path="/var/log/$app/$app.log"

#=================================================
# 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="Upgrade of $app completed" --last