#!/bin/bash

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

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

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

export app=$YNH_APP_INSTANCE_NAME

export domain=$(ynh_app_setting_get --app=$app --key=domain)
export app_version=$(ynh_app_setting_get --app=$app --key=app_version)
export oca=$(ynh_app_setting_get --app=$app --key=oca)
export port=$(ynh_app_setting_get --app=$app --key=port)
export port_chat=$(ynh_app_setting_get --app=$app --key=port_chat)
export final_path=$(ynh_app_setting_get --app=$app --key=final_path)
export conf_file=$(ynh_app_setting_get --app=$app --key=conf_file)
export preinstall=0

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

#=================================================
# 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

if ! ynh_permission_exists --permission="admin"; then
	# Create the required permissions
	ynh_permission_create --permission="admin" --url="/web/database/manager" --allowed="all_users"
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
	setup_files
fi

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

ynh_exec_warn_less ynh_install_app_dependencies $pkg_dependencies

#=================================================
# SPECIFIC UPGRADE
#=================================================
# ADD SWAP
#=================================================
ynh_script_progression --message="Adding swap..."

if [ ${PACKAGE_CHECK_EXEC:-0} -eq 1 ]; then
    :
else
    ynh_add_swap --size=$swap_needed
fi

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

if ! wkhtmltopdf --version | grep "wkhtmltopdf 0.12.4 (with patched qt)"; then
    # The debian package has a bug so we deploy a more recent version
    if [ -f '../manifest.json' ] ; then
        ynh_setup_source /usr/
    else
        OLD_YNH_CWD=$YNH_CWD
        YNH_CWD=$YNH_CWD/../settings/conf
        ynh_setup_source /usr/
        YNH_CWD=$OLD_YNH_CWD
    fi
fi
pushd $final_path
    if grep "python3" $final_path/$appname/$FORKNAME-bin ; then
        python3 -m venv venv
        venv/bin/pip3 install wheel
        venv/bin/pip3 install -r $appname/requirements.txt
    else
        virtualenv venv
        venv/bin/pip install wheel
        venv/bin/pip install -r $appname/requirements.txt
    fi
popd

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

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

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

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

#=================================================
# 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"