#!/bin/bash

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

source _common.sh
source ynh_redis
source ynh_uwsgi_service__2
source /usr/share/yunohost/helpers

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

app=$YNH_APP_INSTANCE_NAME

domain=$(ynh_app_setting_get --app=$app --key=domain)
path_url=$(ynh_app_setting_get --app=$app --key=path)
admin=$(ynh_app_setting_get --app=$app --key=admin)
final_path=$(ynh_app_setting_get --app=$app --key=final_path)
db_name=$(ynh_app_setting_get --app=$app --key=db_name)
db_user=$db_name
db_pwd=$(ynh_app_setting_get --app=$app --key=psqlpwd)
datadir=$(ynh_app_setting_get --app=$app --key=datadir)
redis_db=$(ynh_app_setting_get --app=$app --key=redis_db)
secret_key=$(ynh_app_setting_get --app=$app --key=secret_key)
salt_email=$(ynh_app_setting_get --app=$app --key=salt_email)

#=================================================
# CHECK VERSION
#=================================================
ynh_script_progression --message="Checking 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)..."

# Backup the current version of the app
ynh_backup_before_upgrade
ynh_clean_setup () {
	ynh_clean_check_starting
	# 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..."

ynh_systemd_action --service_name=${app}_authorized_keys_worker --action="stop" --log_path="systemd"
ynh_systemd_action --service_name=${app}_ci --action="stop" --log_path="systemd"
#ynh_systemd_action --service_name=${app}_ev_server --action="stop" --log_path="systemd"
ynh_systemd_action --service_name=${app}_gitolite_worker --action="stop" --log_path="systemd"
ynh_systemd_action --service_name=${app}_loadjson --action="stop" --log_path="systemd"
ynh_systemd_action --service_name=${app}_logcom --action="stop" --log_path="systemd"
#ynh_systemd_action --service_name=${app}_milters --action="stop" --log_path="systemd"
ynh_systemd_action --service_name=${app}_mirror --action="stop" --log_path="systemd"
ynh_systemd_action --service_name=${app}_webhook --action="stop" --log_path="systemd"
ynh_systemd_action --service_name=${app}_worker --action="stop" --log_path="systemd"
ynh_systemd_action --service_name="uwsgi-app@$app.service" --action="stop" --log_path="systemd"

#=================================================
# ENSURE DOWNWARD COMPATIBILITY
#=================================================
ynh_script_progression --message="Ensuring downward compatibility..."

# Cleaning legacy permissions
if ynh_legacy_permissions_exists; then
	ynh_legacy_permissions_delete_all

	ynh_app_setting_delete --app=$app --key=is_public
fi

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

# 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..."

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

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

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

# Create a dedicated NGINX config
ynh_add_nginx_config

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

ynh_install_app_dependencies $pkg_dependencies

#=================================================
# SPECIFIC UPGRADE
#=================================================
# UPDATE A CONFIG FILE
#=================================================
ynh_script_progression --message="Updating a configuration file..."

ynh_add_config --template="../conf/pagure.cfg.sample" --destination="$final_path/pagure.cfg"

chmod 400 "$final_path/pagure.cfg"
chown $app:$app "$final_path/pagure.cfg"

#=================================================
# SETUP SYSTEMD
#=================================================
ynh_script_progression --message="Configuring a systemd service..."

# Create a dedicated systemd config
ynh_add_systemd_config --service="${app}_authorized_keys_worker" --template="pagure_authorized_keys_worker.service"
ynh_add_systemd_config --service="${app}_ci" --template="pagure_ci.service"
#ynh_add_systemd_config --service="${app}_ev_server" --template="pagure_ev_server.service"
ynh_add_systemd_config --service="${app}_gitolite_worker" --template="pagure_gitolite_worker.service"
ynh_add_systemd_config --service="${app}_loadjson" --template="pagure_loadjson.service"
ynh_add_systemd_config --service="${app}_logcom" --template="pagure_logcom.service"
#ynh_add_systemd_config --service="${app}_milters" --template="pagure_milters.service"
ynh_add_systemd_config --service="${app}_mirror" --template="pagure_mirror.service"
ynh_add_systemd_config --service="${app}_webhook" --template="pagure_webhook.service"
ynh_add_systemd_config --service="${app}_worker" --template="pagure_worker.service"

ynh_add_config --template="../conf/pagure.wsgi" --destination="$final_path/pagure.wsgi"
ynh_add_uwsgi_service --service="$app" --template="uwsgi.ini"

#=================================================
# BUILD APP
#=================================================
ynh_script_progression --message="Building app..."

pushd "$final_path"
	ynh_secure_remove --file="${final_path}/venv"
	python3 -m venv venv
	source ./venv/bin/activate
	pip install --upgrade pip
	pip install wheel
	pip install cffi
	pip install psycopg2
	pip install pyyaml
	pip install pygit2
	pip install "jinja2<3.1.0"
	pip install -r requirements.txt
	ynh_add_config --template="../conf/alembic.ini" --destination="$final_path/alembic.ini"
	PAGURE_CONFIG=${final_path}/pagure.cfg alembic upgrade head 2>&1
popd

ynh_replace_string --match_string="validators.Required" --replace_string="validators.DataRequired" --target_file="$final_path/pagure/forms.py"

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

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

yunohost service add ${app}_authorized_keys_worker
yunohost service add ${app}_ci
#yunohost service add ${app}_ev_server
yunohost service add ${app}_gitolite_worker
yunohost service add ${app}_loadjson
yunohost service add ${app}_logcom
#yunohost service add ${app}_milters
yunohost service add ${app}_mirror
yunohost service add ${app}_webhook
yunohost service add ${app}_worker

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

ynh_systemd_action --service_name=${app}_authorized_keys_worker --action="start" --log_path="systemd" --line_match="ready"
ynh_systemd_action --service_name=${app}_ci --action="start" --log_path="systemd" --line_match="ready"
#ynh_systemd_action --service_name=${app}_ev_server --action="start" --log_path="systemd" --line_match="ready"
ynh_systemd_action --service_name=${app}_gitolite_worker --action="start" --log_path="systemd" --line_match="ready"
ynh_systemd_action --service_name=${app}_loadjson --action="start" --log_path="systemd" --line_match="ready"
ynh_systemd_action --service_name=${app}_logcom --action="start" --log_path="systemd" --line_match="ready"
#ynh_systemd_action --service_name=${app}_milters --action="start" --log_path="systemd" --line_match="ready"
ynh_systemd_action --service_name=${app}_mirror --action="start" --log_path="systemd" --line_match="ready"
ynh_systemd_action --service_name=${app}_webhook --action="start" --log_path="systemd" --line_match="ready"
ynh_systemd_action --service_name=${app}_worker --action="start" --log_path="systemd" --line_match="ready"
ynh_systemd_action --service_name="uwsgi-app@$app.service" --action="start" --log_path="systemd" --line_match="Started"

#=================================================
# RELOAD NGINX
#=================================================
ynh_script_progression --message="Reloading NGINX web server..."

ynh_systemd_action --service_name=nginx --action=reload

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

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