#!/bin/bash

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

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

#=================================================
# LOAD SETTINGS
#=================================================

# uncomment me after some updates whenever the key variable is set in install for some times
#key=$(ynh_app_setting_get --app=$app --key=key --value=$key)

#remove me when key setting is uncommented (see above)
key=$(ynh_string_random --length=32)

#=================================================
# 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="bookwyrm-beat" --log_path="systemd"
ynh_systemd_action --action="stop" --service_name="bookwyrm-server" --log_path="systemd"
ynh_systemd_action --action="stop" --service_name="bookwyrm-worker" --log_path="systemd"

#=================================================
# 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="$install_dir" --source_id="main" --keep=".env"
	ynh_setup_source --dest_dir="$install_dir/static/fonts/source_han_sans" --source_id="fonts"
fi

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

#=================================================
# CONFIGURE THE INSTALL SCRIPT
#=================================================
ynh_script_progression --message="Upgrading .env file..." --weight=1

ynh_add_config --template="../conf/.env.production" --destination="$install_dir/.env"
chmod 600 $install_dir/.env
chown $app: "$install_dir/.env"

#=================================================
# CONFIGURE THEN INSTALL SCRIPT AND DEPENDENCIES
#=================================================
ynh_script_progression --message="Installing service script..." --weight=1

ynh_secure_remove --file="$install_dir/venv"
mkdir "$install_dir/venv"
python3 -m venv "$install_dir/venv"
$install_dir/venv/bin/pip3 install -r "$install_dir/requirements.txt"

#=================================================
# Update DATABASE
#=================================================
ynh_script_progression --message="Upgrading database..." --weight=1

pushd $install_dir
$install_dir/venv/bin/python3 "$install_dir/manage.py" compile_themes
$install_dir/venv/bin/python3 "$install_dir/manage.py" collectstatic --no-input
$install_dir/venv/bin/python3 "$install_dir/manage.py" makemigrations --merge --no-input
$install_dir/venv/bin/python3 "$install_dir/manage.py" migrate
popd

#=================================================
# SET PERMISSIONS ON BOOKWYRM DIRECTORY
#=================================================

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

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

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

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

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

yunohost service add "$app-beat" --log="/var/log/$app/$app-beat.log"
yunohost service add "$app-server" --log="/var/log/$app/$app.log"
yunohost service add "$app-worker" --log="/var/log/$app/$app-worker.log"

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

ynh_systemd_action --service_name="$app-beat" --action="start" --log_path="systemd" --line_match="Started bookwyrm celery beat process"
ynh_systemd_action --service_name="$app-server" --action="start" --log_path="systemd" --line_match="Booting worker with pid"
ynh_systemd_action --service_name="$app-worker" --action="start" --log_path="systemd" --line_match="ready"

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

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