#!/bin/bash

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

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

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

upgrade_type=$(ynh_check_app_version_changed)

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

ynh_systemd_action --action="stop" --service_name="${app}-beat" --log_path="systemd" --line_match="Stopped"
ynh_systemd_action --action="stop" --service_name="${app}-server" --log_path="systemd" --line_match="Stopped"
ynh_systemd_action --action="stop" --service_name="${app}-worker" --log_path="systemd" --line_match="Stopped"

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

if [ "$upgrade_type" == "UPGRADE_APP" ]
then
	ynh_script_progression --message="Upgrading source files..." --weight=1
	
	# Remove the old files
	ynh_secure_remove --file="$install_dir/api"
	ynh_secure_remove --file="$install_dir/front"

	# Download, check integrity, uncompress and patch the source from app.src
	ynh_setup_source --dest_dir="$install_dir/api" --source_id="api"
	ynh_setup_source --dest_dir="$install_dir/front" --source_id="front"
fi

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

# Create a dedicated NGINX config
ynh_add_nginx_config
ynh_add_config --template="funkwhale_proxy.conf" --destination="/etc/nginx/conf.d/$domain.d/funkwhale_proxy.conf"

#=================================================
# Assure correct permissions to $data_dir
#=================================================
ynh_script_progression --message="Assure correct permissions to $data_dir..." --weight=1

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

#=================================================
# SPECIFIC UPGRADE
#=================================================
# INSTALL PYTHON DEPENDENCIES
#=================================================
ynh_script_progression --message="Installing Python dependencies..." --weight=1

if [ $YNH_ARCH == "armhf" ] || [ $YNH_ARCH == "armel" ]
then
# Install rustup is not already installed
# We need this to be able to install cryptgraphy
export PATH="$PATH:$install_dir/.cargo/bin:$install_dir/.local/bin:/usr/local/sbin"
    if [ -e $install_dir/.rustup ]; then
    sudo -u "$app" env PATH=$PATH rustup update
    else
    sudo -u "$app" bash -c 'curl -sSf -L https://static.rust-lang.org/rustup.sh | sh -s -- -y --default-toolchain=stable --profile=minimal'
    fi
fi

pushd $install_dir
	ynh_secure_remove --file="$install_dir/virtualenv"
	ynh_secure_remove --file="$install_dir/venv"
	
	python3 -m venv $install_dir/venv
	source $install_dir/venv/bin/activate
	ynh_exec_warn_less pip install --upgrade pip wheel toml
	ynh_exec_warn_less pip install --editable ./api
popd

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

ynh_add_config --template="../conf/env.prod" --destination="$install_dir/config/.env"

chmod 400 "$install_dir/config/.env"
chown $app:$app "$install_dir/config/.env"

#=================================================
# UPGRADE FUNKWHALE
#=================================================
ynh_script_progression --message="Upgrading Funkwhale..." --weight=1

pushd $install_dir
	source $install_dir/venv/bin/activate

	echo "yes" | ynh_exec_warn_less $install_dir/venv/bin/funkwhale-manage collectstatic --clear --noinput

	# needed for enabling the 'unaccent' extension
	ynh_psql_execute_as_root --sql="ALTER USER $db_user WITH SUPERUSER;" --database="$db_name"

	ynh_exec_warn_less ynh_exec_as $app $install_dir/venv/bin/funkwhale-manage migrate
	ynh_psql_execute_as_root --sql="ALTER USER $db_user WITH NOSUPERUSER;" --database="$db_name"
popd

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

#=================================================
# LOGROTATE
#=================================================
ynh_script_progression --message="Configuring logrotate to manage application logfiles" --weight=1

# Use logrotate to manage application logfile(s)
ynh_use_logrotate --specific_user=$app
touch /var/log/$app/${app}-server.log
touch /var/log/$app/${app}-worker.log
touch /var/log/$app/${app}-beat.log
chown -R $app:$app /var/log/$app/

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

ynh_add_config --template="../conf/funkwhale.target" --destination="/etc/systemd/system/$app.target"

# Create a dedicated systemd config
ynh_add_systemd_config --service="${app}-server" --template="funkwhale-server.service"
ynh_add_systemd_config --service="${app}-worker" --template="funkwhale-worker.service"
ynh_add_systemd_config --service="${app}-beat"   --template="funkwhale-beat.service"

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

yunohost service add "${app}-beat" --description="${app} celery beat process" --log="/var/log/$app/${app}-beat.log"
yunohost service add "${app}-server" --description="${app} application server" --log="/var/log/$app/${app}-server.log"
yunohost service add "${app}-worker" --description="${app} celery worker" --log="/var/log/$app/${app}-worker.log"

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

# Start a systemd service
ynh_systemd_action --service_name="${app}-beat" --action="start" --log_path="systemd" --line_match="Started"
ynh_systemd_action --service_name="${app}-server" --action="start" --log_path="systemd" --line_match="Application startup complete"
ynh_systemd_action --service_name="${app}-worker" --action="start" --log_path="systemd" --line_match="ready"

#=================================================
# UPGRADE FAIL2BAN
#=================================================
ynh_script_progression --message="Reconfiguring Fail2Ban..." --weight=1

# Create a dedicated Fail2Ban config
ynh_add_fail2ban_config --logpath="/var/log/nginx/$domain-access.log" --failregex="<HOST>.* \"POST /api/v1/token/ HTTP/1.1\" 400 68.*$" --max_retry=5

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

ynh_script_progression --message="Upgrade of $app completed" --last