//
// Copyright 2026 Element Creations Ltd.
//
// SPDX-License-Identifier: AGPL-3.0-only OR LicenseRef-Element-Commercial.
// Please see LICENSE files in the repository root for full details.
//

import Combine
import SwiftUI

/// Actions an extra tab can ask the session flow to perform on its behalf.
enum ExtraHomeTabAction {
    case presentRoom(roomID: String)
    case presentCall(roomID: String, isVoiceCall: Bool)
}

nonisolated protocol HomeTabsHookProtocol: Sendable {
    /// An extra tab appended after the standard tabs, or nil for none.
    /// The hook keeps ownership of the tab's flow.
    @MainActor func makeExtraTab(flowParameters: CommonFlowParameters)
        -> (tab: NavigationTabCoordinator<UserSessionFlowCoordinator.HomeTab>.Tab, actions: AnyPublisher<ExtraHomeTabAction, Never>)?
}

struct DefaultHomeTabsHook: HomeTabsHookProtocol {
    func makeExtraTab(flowParameters: CommonFlowParameters)
        -> (tab: NavigationTabCoordinator<UserSessionFlowCoordinator.HomeTab>.Tab, actions: AnyPublisher<ExtraHomeTabAction, Never>)? {
        nil
    }
}