87 lines
2.7 KiB
Swift
87 lines
2.7 KiB
Swift
//
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// WordAXModelView.swift
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// WordAX
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//
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// Created by Oliver Hnát on 23.02.2024.
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//
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import Foundation
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class WordAXModelView: ObservableObject {
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@Published private var model: WordAX
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typealias Word = WordAX.Word
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init() {
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model = WordAX()
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}
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public func getDateFormatter() -> DateFormatter {
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model.settings.dateFormatter
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}
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public func getWordToDisplay() -> Word? {
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let words = model.words
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if words.count > 0 {
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// if today is the date they're supposed to be shown
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let displayToday = words.filter({ $0.lastSeenOn != nil && $0.lastSeenOn!.addSpacedRepetitionMilestone(milestone: $0.nextSpacedRepetitionMilestone!).isAfterTodayOrToday()})
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if displayToday.count > 0 {
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return displayToday.first!
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}
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// first word ever shown
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let shownWords = words.filter({ $0.shown })
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if shownWords.count == 0 {
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return words.first!
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}
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// if today is the day to show a new word
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let settings = model.settings
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if shownWords.count == 0 ||
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settings.lastShownNew == nil ||
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settings.lastShownNew!.addFrequency(frequency: settings.frequency).isAfterToday() {
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return words.first!
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}
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}
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// otherwise show nothing
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return nil
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}
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}
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extension Date {
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private func getOnlyDate(date: Date) -> DateComponents {
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Calendar.current.dateComponents([.day, .month, .year], from: date)
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}
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func isSameAs(_ date: Date) -> Bool {
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let selfDate = getOnlyDate(date: self)
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let paramDate = getOnlyDate(date: date)
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return selfDate.day == paramDate.day && selfDate.month == paramDate.month && selfDate.year == paramDate.year
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}
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func isToday() -> Bool {
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self.isSameAs(Date())
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}
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func isAfter(_ date: Date) -> Bool {
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let selfDate = getOnlyDate(date: self)
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let paramDate = getOnlyDate(date: date)
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return selfDate.year! > paramDate.year! || selfDate.month! > paramDate.month! || selfDate.day! > paramDate.day!
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}
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func addFrequency(frequency: WordAX.FrequencyEnum) -> Date {
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self.addingTimeInterval(TimeInterval(frequency.rawValue * 24 * 60 * 60))
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}
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func addSpacedRepetitionMilestone(milestone: WordAX.SpacedRepetitionMilestoneEnum) -> Date {
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self.addingTimeInterval(TimeInterval(milestone.rawValue * 24 * 60 * 60))
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}
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func isAfterToday() -> Bool {
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self.isAfter(Date())
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}
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func isAfterTodayOrToday() -> Bool {
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self.isAfterToday() || self.isToday()
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}
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}
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