pragma solidity >=0.6.12;

// Author:	Louis Holbrook <dev@holbrook.no> 0826EDA1702D1E87C6E2875121D2E7BB88C2A746
// SPDX-License-Identifier:	AGPL-3.0-or-later
// File-version: 1

// Extends the AccountsIndex contract to enable account removal and deactivation.

interface IAccountsIndexMutable {
	// Active status of address changed, and by whom changed.
	event AddressActive(address indexed _account, bool _active);

	// Address removed from store, and by whom removed.
	event AddressRemoved(address _account);

	// Remove an entry from the index. Reduces the entry count.
	function remove(address) external returns (bool);

	// Deactivate account but keep in index. Does not affect entry count.
	function deactivate(address) external returns (bool);

	// Activate previously deactivated account. Does not affect entry count.
	function activate(address) external returns (bool);

	// Check if account exists and is active;
	function isActive(address) external view returns (bool);
}