#!/bin/sh -e
# __nextcloud_app/gencode-remote

# Handles a nextcloud app.


# Call the nextcloud occ script as the intended user. Maybe this can be a bit
# more effictive with user switching, but currently the easiest way of doing
# it.
#
# All arguments are directly passed to occ (injection alarm ;-) )
occ() {
    # su creates a new shell, so it does not affect the current session
    #  will not use -q as it supresses errors, too
    cat << SHELL
su -s /bin/sh -l "$www_user" -- -e <<'SU'
cd '$cloud' && php occ --no-warnings --no-interaction --no-ansi $@
SU
SHELL
}


# Get the app id
appid="$__object/parameter/appid"
if [ -f "$appid" ]; then
    appid="$(cat "$appid")"
else
    appid="$__object_id"
fi

# Get the app state
state_is="$(cat "$__object/explorer/state")"
state_should="$(cat "$__object/parameter/state")"

# Get general parameters
cloud="$(cat "$__object/parameter/cloud")"
www_user="$(cat "$__object/parameter/www-user")"


# Abort if nextcloud is not installed
if [ -z "$state_is" ]; then
    printf "No nextcloud installation could be detected in '%s' ..\n" "$cloud" >&2
    echo "Use the type __nextcloud to ensure the installation and mark it as dependency for this type!" >&2
    exit 2
fi


# Check if the state changes
if [ "$state_is" != "$state_should" ]; then
    # check what to do
    case "$state_should" in
        enabled)
            if [ "$state_is" = "disabled" ]; then
                occ app:enable "'$appid'"
                echo enabled >> "$__messages_out"
            else
                occ app:install "'$appid'"
                echo installed >> "$__messages_out"
            fi
            ;;

        disabled)
            if [ "$state_is" = "absent" ]; then
                occ app:install --keep-disabled "'$appid'"
                echo installed >> "$__messages_out"
            else
                occ app:disable "'$appid'"
                echo disabled >> "$__messages_out"
            fi
            ;;

        present)
            if [ "$state_is" = "absent" ]; then
                occ app:install "'$appid'"
                echo installed >> "$__messages_out"
            fi
            # else, everything is ok
            ;;

        absent)
            occ app:remove "'$appid'"
            echo removed >> "$__messages_out"
            ;;
    esac
fi