#!/bin/bash

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

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

#=================================================
# LOAD SETTINGS
#=================================================
#REMOVEME? ynh_script_progression --message="Loading installation settings..." --weight=1

#REMOVEME? app=$YNH_APP_INSTANCE_NAME

#REMOVEME? domain=$(ynh_app_setting_get --app=$app --key=domain)
#REMOVEME? #path=$YNH_APP_ARG_PATH
# we can only add support for subpaths once this is resolved in archivebox
# https://github.com/ArchiveBox/ArchiveBox/issues/724
path="/"
#REMOVEME? language=$(ynh_app_setting_get --app=$app --key=language)
#REMOVEME? admin=$(ynh_app_setting_get --app=$app --key=admin)
#REMOVEME? #REMOVEME? install_dir=$(ynh_app_setting_get --app=$app --key=install_dir)
#REMOVEME? port=$(ynh_app_setting_get --app=$app --key=port)
#REMOVEME? data_dir=$(ynh_app_setting_get --app=$app --key=data_dir)

#=================================================
# CHECK VERSION
#=================================================
ynh_script_progression --message="Checking version..." --weight=1

upgrade_type=$(ynh_check_app_version_changed)

#=================================================
# BACKUP BEFORE UPGRADE THEN ACTIVE TRAP
#=================================================
#REMOVEME? ynh_script_progression --message="Backing up the app before upgrading (may take a while)..." --weight=1

# Backup the current version of the app
#REMOVEME? ynh_backup_before_upgrade
#REMOVEME? ynh_clean_setup () {
	# Restore it if the upgrade fails
#REMOVEME? 	ynh_restore_upgradebackup
}
# Exit if an error occurs during the execution of the script
#REMOVEME? ynh_abort_if_errors

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

#=================================================
# ENSURE DOWNWARD COMPATIBILITY
#=================================================
ynh_script_progression --message="Ensuring downward compatibility..." --weight=1

# Cleaning legacy permissions
#REMOVEME? if ynh_legacy_permissions_exists; then
#REMOVEME? 	ynh_legacy_permissions_delete_all

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

#=================================================
# CREATE DEDICATED USER
#=================================================
#REMOVEME? ynh_script_progression --message="Making sure dedicated system user exists..." --weight=1

# Create a dedicated user (if not existing)
#REMOVEME? ynh_system_user_create --username=$app --home_dir="$install_dir"

#=================================================
# 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
	tempdir="$(mktemp -d)"
	ynh_setup_source --dest_dir="$tempdir"
	mkdir -p $install_dir
fi

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

#=================================================
# UPGRADE DEPENDENCIES
#=================================================
#REMOVEME? ynh_script_progression --message="Upgrading dependencies..." --weight=1

#REMOVEME? ynh_exec_warn_less ynh_install_app_dependencies $pkg_dependencies
ynh_exec_warn_less ynh_install_nodejs --nodejs_version=$nodejs_version

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

# Create a dedicated NGINX config
ynh_add_nginx_config

#=================================================
# SPECIFIC UPGRADE
#=================================================
# UPGRADE VIA PIP
#=================================================

if [ "$upgrade_type" == "UPGRADE_APP" ]
then
	ynh_script_progression --message="Upgrading via pip" --weight=1
    ynh_use_nodejs
    python3 -m venv "${install_dir}/venv"
    cp ../conf/requirements.txt "$install_dir/requirements.txt"
    chown -R "$app" "$install_dir"

    #run source in a 'sub shell'
    (
        set +o nounset
        source "${install_dir}/venv/bin/activate"
        set -o nounset
        ynh_exec_as $app $install_dir/venv/bin/pip install --upgrade pip
        ynh_exec_as $app $install_dir/venv/bin/pip install -r "$install_dir/requirements.txt"
    )

    # we use this virtualenv archivebox for further commands now
    archivebox_cmd="$install_dir/venv/bin/archivebox"
fi

#=================================================
# UPGRADE NODE DEPENDENCIES
#=================================================

if [ "$upgrade_type" == "UPGRADE_APP" ]
then
#REMOVEME? 	ynh_script_progression --message="Upgrading node dependencies..."
	
	cp -f $tempdir/package.json "$install_dir/package.json"
	cp -f $tempdir/package-lock.json "$install_dir/package-lock.json"
	ynh_secure_remove --file="$tempdir"
	pushd $install_dir
		ynh_use_nodejs
		ynh_exec_warn_less ynh_exec_as $app $ynh_node_load_PATH $ynh_npm ci
	popd
fi

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

ynh_store_file_checksum --file="$data_dir/ArchiveBox.conf"
ynh_add_config --template="../conf/ArchiveBox.conf" --destination="$data_dir/ArchiveBox.conf"

chmod 600 "$data_dir/ArchiveBox.conf"
chown $app:$app "$data_dir/ArchiveBox.conf"

#=================================================
# FINISH ARCHIVEBOX SETUP
#=================================================

if [ "$upgrade_type" == "UPGRADE_APP" ]
then
    # rerun archivebox setup (its idempotent, so it should be ok during upgrade)
    ynh_script_progression --message="Finishing Archivebox Setup" --weight=1
    pushd $data_dir
    	ynh_exec_warn_less ynh_exec_as $app $ynh_node_load_PATH $archivebox_cmd init --setup
    popd
fi

#=================================================
# 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 $app --description="Self-hosted internet archiving" --log="/var/log/$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"

#=================================================
# RELOAD NGINX
#=================================================
#REMOVEME? ynh_script_progression --message="Reloading NGINX web server..." --weight=1

#REMOVEME? ynh_systemd_action --service_name=nginx --action=reload

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

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