/* -*- Mode: IDL; tab-width: 8; 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 nsISimpleEnumerator;
interface nsIFile;
interface nsIToolkitProfile;
interface nsIProfileLock;

[scriptable, builtinclass, uuid(1947899b-f369-48fa-89da-f7c37bb1e6bc)]
interface nsIToolkitProfileService : nsISupports
{
    /**
     * Tests whether the profile lists on disk have changed since they were
     * loaded. When this is true attempts to flush changes to disk will fail.
     */
    [infallible] readonly attribute boolean isListOutdated;

    /**
     * When a downgrade is detected UI is presented to the user to ask how to
     * proceed. These flags are used to pass some information to the UI.
     */
    cenum downgradeUIFlags: 8 {
        hasSync = 1,
    };

    /**
     * When a downgrade is detected UI is presented to the user to ask how to
     * proceed. These are the possible options the user can choose.
     */
    cenum downgradeUIChoice: 8 {
        quit = 0,
        createNewProfile = 1,
    };

    cenum profileManagerResult: 8 {
        exit = 0,
        launchWithProfile = 1,
        restart = 2,
    };

    [infallible] attribute boolean startWithLastProfile;

    [infallible] readonly attribute nsISimpleEnumerator /*nsIToolkitProfile*/ profiles;

    /**
     * The profile currently in use if it is a named profile. This will return
     * null if the current profile path doesn't match a profile in the database.
     */
    [infallible] readonly attribute nsIToolkitProfile currentProfile;

    /**
     * The single named profile in a profile group. This is only usable after
     * startup has complete.
     *
     * If the current named profile has a StoreID, this is the current profile.
     * If the current profile is unnamed and has a StoreID, this will be the
     * named profile with the same StoreID.
     * If the current profile has no StoreID, this will be null.
     */
    [infallible] readonly attribute nsIToolkitProfile groupProfile;

    /**
     * The default profile for this build.
     * On startup this is the profile selected unless overridden by command line
     * arguments or environment variables. Setting this will change the profile
     * used by default the next time the application is started.
     * Attempting to change the default may throw an exception on builds that do
     * not support changing the default profile, such as developer edition.
     */
    attribute nsIToolkitProfile defaultProfile;

    /**
     * Selects or creates a profile to use based on the profiles database, any
     * environment variables and any command line arguments. Will not create
     * a profile if aIsResetting is true. The profile is selected based on this
     * order of preference:
     * * Environment variables (set when restarting the application).
     * * --profile command line argument.
     * * --createprofile command line argument (this also causes the app to exit).
     * * -p command line argument.
     * * A new profile created if this is the first run of the application.
     * * The default profile.
     * aRootDir and aLocalDir are set to the data and local directories for the
     * profile data. If a profile from the database was selected it will be
     * returned in aProfile.
     * This returns true if a new profile was created.
     * This method is primarily for testing. It can be called only once.
     */
    boolean selectStartupProfile(in Array<ACString> aArgv,
                                 in boolean aIsResetting, in AUTF8String aUpdateChannel,
                                 in AUTF8String aLegacyInstallHash,
                                 out nsIFile aRootDir, out nsIFile aLocalDir,
                                 out nsIToolkitProfile aProfile);

    /**
     * Get a profile by name. This is mainly for use by the -P
     * commandline flag.
     *
     * @param aName The profile name to find.
     */
    nsIToolkitProfile getProfileByName(in AUTF8String aName);

    /**
     * Get a profile by directory. Finds a profile with the matching root directory
     *
     * @param aRootDir The root directory to match against.
     * @param aLocalDir And optional local directory to also match against.
     */
    nsIToolkitProfile getProfileByDir(in nsIFile aRootDir, [optional] in nsIFile aLocalDir);

    /**
     * Create a new profile.
     *
     * The profile temporary directory will be chosen based on where the
     * profile directory is located.
     *
     * If a profile with the given name already exists it will be returned
     * instead of creating a new profile.
     *
     * @param aRootDir
     *        The profile directory. May be null, in which case a suitable
     *        default will be chosen based on the profile name.
     * @param aName
     *        The profile name.
     */
    nsIToolkitProfile createProfile(in nsIFile aRootDir,
                                    in AUTF8String aName);

    /**
     * Create a new profile with a unique name.
     *
     * As above however the name given will be altered to make it a unique
     * profile name.
     *
     * @param aRootDir
     *        The profile directory. May be null, in which case a suitable
     *        default will be chosen based on the profile name.
     * @param aNamePrefix
     *        The prefix to use for the profile name. If unused this will be
     *        used as the profile name otherwise additional characters will be
     *        added to make the name unique.
     */
    nsIToolkitProfile createUniqueProfile(in nsIFile aRootDir,
                                          in AUTF8String aNamePrefix);

    /**
     * Returns the number of profiles.
     * @return the number of profiles.
     */
    [infallible] readonly attribute unsigned long profileCount;

    /**
     * Flush the profiles list file. This will fail with
     * NS_ERROR_DATABASE_CHANGED if the files on disk have changed since the
     * profiles were loaded. Should not be called outside of startup.
     */
    void flush();

    /**
     * Flushes the profiles list file on a background thread after acquiring the
     * startup lock. Like `flush` this will fail with NS_ERROR_DATABASE_CHANGED
     * if the files on disk have changed since the profiles were loaded.
     * It is safe to call this while a previous flush is still in progress. The
     * promise returned will resolve when the last call to flush completes.
     */
    [implicit_jscontext]
    Promise asyncFlush();

    /**
     * Flushes the mutable data about the current group profile to disk on a
     * background thread after acquiring the startup lock. Unlike other flushing
     * methods this can usually succeed even if the files on disk have changed
     * since the profiles were loaded.
     * It is safe to call this while a previous flush is still in progress. The
     * promise returned will resolve when the last call to flush completes.
     */
    [implicit_jscontext]
    Promise asyncFlushGroupProfile();

    /**
     * Removes profile directories from disk. Will wait for up to aTimeout
     * seconds to acquire the profile lock. aLocalDir can be null in which case
     * it is calculated from the root directory.
     */
    [implicit_jscontext]
    Promise removeProfileFilesByPath(in nsIFile aRootDir, in nsIFile aLocalDir,
                                     in unsigned long aTimeout);
};

%{C++
#define NS_PROFILESERVICE_CONTRACTID "@mozilla.org/toolkit/profile-service;1"
%}