/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
/* This Source Code Form is subject to the terms of the Mozilla Public
 * License, v. 2.0. If a copy of the MPL was not distributed with this
 * file, You can obtain one at http://mozilla.org/MPL/2.0/. */

#include "nsISupports.idl"

interface nsIPrincipal;

/**
 * Interface for a class that manages updates of the url classifier database.
 */

[scriptable, uuid(d60a08ee-5c83-4eb6-bdfb-79fd0716501e)]
interface nsIUrlListManager : nsISupports
{
    /**
     * Get the gethash url for this table
     */
    ACString getGethashUrl(in ACString tableName);

    /**
     * Get the update url for this table
     */
    ACString getUpdateUrl(in ACString tableName);

    /**
     * Add a table to the list of tables we are managing. The name is a
     * string of the format provider_name-semantic_type-table_type.  For
     * @param tableName A string of the format
     *        provider_name-semantic_type-table_type.  For example,
     *        goog-white-enchash or goog-black-url.
     * @param providerName The name of the entity providing the list.
     * @param updateUrl The URL from which to fetch updates.
     * @param gethashUrl The URL from which to fetch hash completions.
     */
    boolean registerTable(in ACString tableName,
                          in ACString providerName,
                          in ACString updateUrl,
                          in ACString gethashUrl);

    /**
     * Unregister table from the list
     */
    void unregisterTable(in ACString tableName);

    /**
     * Turn on update checking for a table. I.e., during the next server
     * check, download updates for this table.
     */
    void enableUpdate(in ACString tableName);

    /**
     * Turn off update checking for a table.
     */
    void disableUpdate(in ACString tableName);

    /**
     * Toggle update checking, if necessary.
     */
    void maybeToggleUpdateChecking();

    /**
     * This is currently used by about:url-classifier to force an update
     * for the update url. Update may still fail because of backoff algorithm.
     */
    boolean checkForUpdates(in ACString updateUrl);

    /**
     * This is currently used by about:url-classifier to get back-off time
     * (in millisecond since epoch) for the given provider. Return 0 if we
     * are not in back-off mode.
     */
    uint64_t getBackOffTime(in ACString provider);
};
