/*
 * Tests that hidden nodes with buildIndexes: false behave correctly when system tables with
 * default indexes are created.
 *
 * @tags: [requires_persistence]
 */
(function() {
'use strict';

load("jstests/replsets/rslib.js");

const testName = "buildindexes_false_with_system_indexes";

let rst = new ReplSetTest({
    name: testName,
    nodes: [
        {},
        {rsConfig: {priority: 0}},
        {rsConfig: {priority: 0, hidden: true, buildIndexes: false}},
    ],
});
const nodes = rst.startSet();
rst.initiate();

let primary = rst.getPrimary();
assert.eq(primary, nodes[0]);
let secondary = nodes[1];
const hidden = nodes[2];

rst.awaitReplication();
jsTestLog("Creating a role in the admin database");
let adminDb = primary.getDB("admin");
adminDb.createRole({role: 'test_role', roles: [{role: 'readWrite', db: 'test'}], privileges: []});
rst.awaitReplication();

jsTestLog("Creating a user in the admin database");
adminDb.createUser({user: 'test_user', pwd: 'test', roles: [{role: 'test_role', db: 'admin'}]});
rst.awaitReplication();

// Make sure the indexes we expect are present on all nodes.  The buildIndexes: false node
// should have only the _id_ index.
let secondaryAdminDb = secondary.getDB("admin");
const hiddenAdminDb = hidden.getDB("admin");

assert.eq(["_id_", "user_1_db_1"], adminDb.system.users.getIndexes().map(x => x.name).sort());
assert.eq(["_id_", "role_1_db_1"], adminDb.system.roles.getIndexes().map(x => x.name).sort());
assert.eq(["_id_", "user_1_db_1"],
          secondaryAdminDb.system.users.getIndexes().map(x => x.name).sort());
assert.eq(["_id_", "role_1_db_1"],
          secondaryAdminDb.system.roles.getIndexes().map(x => x.name).sort());
assert.eq(["_id_"], hiddenAdminDb.system.users.getIndexes().map(x => x.name).sort());
assert.eq(["_id_"], hiddenAdminDb.system.roles.getIndexes().map(x => x.name).sort());

// Drop the indexes and restart the secondary.  The indexes should not be re-created.
jsTestLog("Dropping system indexes and restarting secondary.");
adminDb.system.users.dropIndex("user_1_db_1");
adminDb.system.roles.dropIndex("role_1_db_1");
rst.awaitReplication();
assert.eq(["_id_"], adminDb.system.users.getIndexes().map(x => x.name).sort());
assert.eq(["_id_"], adminDb.system.roles.getIndexes().map(x => x.name).sort());
assert.eq(["_id_"], secondaryAdminDb.system.users.getIndexes().map(x => x.name).sort());
assert.eq(["_id_"], secondaryAdminDb.system.roles.getIndexes().map(x => x.name).sort());
assert.eq(["_id_"], hiddenAdminDb.system.users.getIndexes().map(x => x.name).sort());
assert.eq(["_id_"], hiddenAdminDb.system.roles.getIndexes().map(x => x.name).sort());

secondary = rst.restart(secondary, {}, true /* wait for node to become healthy */);
rst.awaitSecondaryNodes();
secondaryAdminDb = secondary.getDB("admin");
assert.eq(["_id_"], secondaryAdminDb.system.users.getIndexes().map(x => x.name).sort());
assert.eq(["_id_"], secondaryAdminDb.system.roles.getIndexes().map(x => x.name).sort());

jsTestLog("Now restarting primary; indexes should be created.");
rst.restart(primary);
primary = rst.getPrimary();
rst.awaitReplication();
rst.awaitReplication();
rst.awaitReplication();
adminDb = primary.getDB("admin");
assert.eq(["_id_", "user_1_db_1"], adminDb.system.users.getIndexes().map(x => x.name).sort());
assert.eq(["_id_", "role_1_db_1"], adminDb.system.roles.getIndexes().map(x => x.name).sort());
assert.eq(["_id_", "user_1_db_1"],
          secondaryAdminDb.system.users.getIndexes().map(x => x.name).sort());
assert.eq(["_id_", "role_1_db_1"],
          secondaryAdminDb.system.roles.getIndexes().map(x => x.name).sort());
assert.eq(["_id_"], hiddenAdminDb.system.users.getIndexes().map(x => x.name).sort());
assert.eq(["_id_"], hiddenAdminDb.system.roles.getIndexes().map(x => x.name).sort());

rst.stopSet();
}());