ios-mail/Modules/InboxCoreUI/Sources/Utils/SupportedBiometry.swift

// Copyright (c) 2025 Proton Technologies AG
//
// This file is part of Proton Mail.
//
// Proton Mail is free software: you can redistribute it and/or modify
// it under the terms of the GNU General Public License as published by
// the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.
//
// Proton Mail is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU General Public License for more details.
//
// You should have received a copy of the GNU General Public License
// along with Proton Mail. If not, see https://www.gnu.org/licenses/.

import LocalAuthentication

public enum SupportedBiometry {
    case none
    case touchID
    case faceID

    public static func configuredOnDevice(context: LAContext = LAContext()) -> Self {
        if context.canEvaluatePolicy(.deviceOwnerAuthentication, error: nil) {
            switch context.biometryType {
            case .faceID:
                return .faceID
            case .touchID:
                return .touchID
            default:
                return .none
            }
        } else {
            return .none
        }
    }

    static func availableOnDevice(context: LAContext = LAContext()) -> Self {
        _ = context.canEvaluatePolicy(.deviceOwnerAuthentication, error: nil)
        switch context.biometryType {
        case .faceID:
            return .faceID
        case .touchID:
            return .touchID
        default:
            return .none
        }
    }
}