/* -*- Mode: IDL; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* 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"
#include "nsIMsgIncomingServer.idl"
#include "nsIMsgIdentity.idl"

interface nsIArray;

/**
 * An account consists of an incoming server and one or more
 * outgoing identities. An account is identified by a key,
 * which is the <account> string in the account preferences,
 * such as in mail.account.<account>.identities.
 */

[scriptable, uuid(84181351-4ec8-4ca8-8439-5c68cc591177)]
interface nsIMsgAccount : nsISupports {

  /// Internal key identifying itself
  attribute ACString key;

  /// Incoming server stuff
  attribute nsIMsgIncomingServer incomingServer;

  /// Outgoing identity list (array of nsIMsgIdentity's)
  readonly attribute nsIArray identities;

  /// The default identity for this account.
  attribute nsIMsgIdentity defaultIdentity;

  /// Add a new identity to this account
  void addIdentity(in nsIMsgIdentity identity);

  /// Remove an identity from this account
  void removeIdentity(in nsIMsgIdentity identity);

  /// Clear all user preferences associated with an account.
  void clearAllValues();

  /// Name in javascript
  AString toString();

  /**
   * Create the server, with error returns.
   *
   * Normally each valid account also has a valid server.
   *
   * If an extension that creates a server type failed to load, then we
   * may have an existing account without a valid server. We don't want
   * to simply delete that account, as that would make the user re-enter
   * all of the account information after what may be a temporary
   * update glitch. But we also don't want to leave junk lying around
   * forever. So what we do is note the time when we first noticed
   * that the server was unavailable. After a period of time set
   * in a preference, if the server is still unavailable then delete
   * the associated account.
   *
   * Accounts with invalid server are not shown in any way by the account
   * manager. But if the server becomes available (for example if an extension
   * is loaded), then the account will reappear when accounts are loaded.
   *
   * Preference definitions:
   *
   * mail.server.serverN.secondsToLeaveUnavailable
   * mail.server.serverN.timeFoundUnavailable
   *
   * secondsToLeaveUnavailable: is set by the extension to indicate the
   * delay, in seconds, between first detection that a server is
   * unavailable, and the time it can be deleted. This should be set
   * by the extension when the server is created. If missing, treat as 0.
   * A typical value would be 2592000 (30 days)(24 hr/day)(3600 seconds/hr)
   *
   * timeFoundUnavailable: is set by core code the first time that a
   * server is detected as unavailable, using now() converted to seconds.
   * If that time + secondsToLeaveUnavailable is exceeded, core code may
   * delete the server and its associated account (though for now we default
   * to the previous behavior, which is to just delete the account).
   *
   * @throws NS_ERROR_NOT_AVAILABLE if the server component type could not
   *           be created
   *         NS_ERROR_ALREADY_INITIALIZED if the server is already created
   *         (Other errors may also be possible)
  */
  void createServer();
};