ios-mail/Modules/InboxCoreUI/Sources/DatePicker/DatePickerViewConfiguration.swift

// Copyright (c) 2024 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 Foundation

public protocol DatePickerViewConfiguration {
    var title: LocalizedStringResource { get }

    var selectTitle: LocalizedStringResource { get }

    /// Time picker minute increment
    var minuteInterval: TimeInterval { get }

    /// Range of dates allowed in the DatePicker
    var range: ClosedRange<Date> { get }

    /// Has to be in the `range`. If `nil` range.lowerBound is set.
    var initialSelectedDate: Date? { get }

    func formatDate(_ date: Date) -> String
}

extension DatePickerViewConfiguration {

    public var resolvedInitialDate: Date {
        guard let initialSelectedDate, range.contains(initialSelectedDate) else { return range.lowerBound }
        return initialSelectedDate
    }
}