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

#=================================================
# 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_setup_source --dest_dir="$install_dir/pytition"
fi

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

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

# Create a dedicated NGINX config
ynh_add_nginx_config

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

(
    set +o nounset
    source "${install_dir}/venv/bin/activate"
    set -o nounset

    python3 -m pip install --upgrade pip
    python3 -m pip install --upgrade -r "$install_dir/pytition/requirements.txt"
)

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

secret_key=$(generate_secret_key)

config_path="$install_dir/pytition/pytition/pytition/settings/config.py"
ynh_add_config --template="../conf/config.py" --destination="$config_path"
chmod 400 "$config_path"
chown $app:$app "$config_path"

ynh_add_config --template="../conf/uwsgi.yaml" --destination="$install_dir/uwsgi.yaml"
chmod 400 "$install_dir/uwsgi.yaml"
chown $app:$app "$install_dir/uwsgi.yaml"

#=================================================
# RUN APP CONFIGURATION
#=================================================
ynh_script_progression --message="Running app configuration..." --weight=1

ynh_exec_as $app bash -c "
    set +o nounset
    source '$install_dir/venv/bin/activate'
    set -o nounset
    cd '$install_dir/pytition/pytition'
    export DJANGO_SETTINGS_MODULE=pytition.settings.config
    python3 manage.py migrate
    python3 manage.py collectstatic --clear --noinput
    python3 manage.py compilemessages
"

chown -R $app:www-data "$install_dir/static"

#=================================================
# 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="Pytition uWSGI app $app" --log="/var/log/$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"

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

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