5d8e7de8d1
* Update the date separators to use "Today", "Yesterday" etc for messages in the past 7 days. * Fix the observation tests.
80 lines
3.5 KiB
Swift
80 lines
3.5 KiB
Swift
//
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// Copyright 2025 Element Creations Ltd.
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// Copyright 2023-2025 New Vector Ltd.
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//
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// SPDX-License-Identifier: AGPL-3.0-only OR LicenseRef-Element-Commercial.
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// Please see LICENSE files in the repository root for full details.
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//
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import Foundation
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extension Date {
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/// The date formatted with the minimal necessary units given how long ago it occurred.
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func formattedMinimal() -> String {
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let calendar = Calendar.current
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if calendar.isDateInToday(self) {
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// Just the time if it was today.
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return formatted(date: .omitted, time: .shortened)
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} else if calendar.isDateInYesterday(self) {
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// Simply "Yesterday" if it was yesterday.
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guard let yesterday = Calendar.current.date(byAdding: .day, value: -1, to: Date()) else { fatalError() }
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return yesterday.formatted(Date.RelativeFormatStyle(presentation: .named, capitalizationContext: .beginningOfSentence))
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} else if let sixDaysAgo = calendar.date(byAdding: .day, value: -6, to: calendar.startOfDay(for: .now)),
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sixDaysAgo <= self {
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// The named day if it was in the last 6 days.
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return formatted(.dateTime.weekday(.wide))
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} else if let oneYearAgo = calendar.date(byAdding: .year, value: -1, to: .now),
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oneYearAgo <= self {
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// The day and month if it was in the past year
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return formatted(.dateTime.day().month())
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} else {
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// The day, month and year if it is any older.
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return formatted(.dateTime.year().day().month())
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}
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}
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/// Similar to ``formattedMinimal`` but returning "Today" instead of the time and
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/// including the year when it the date is from a previous year (rather than over a year ago).
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func formattedDateSeparator() -> String {
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let calendar = Calendar.current
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if calendar.isDateInToday(self) || calendar.isDateInYesterday(self) {
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// Simply "Today" or "Yesterday" if it was today or yesterday.
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return DateFormatter.relative.string(from: self)
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} else if let sixDaysAgo = calendar.date(byAdding: .day, value: -6, to: calendar.startOfDay(for: .now)),
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sixDaysAgo <= self {
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// The named day if it was in the last 6 days.
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return formatted(.dateTime.weekday(.wide))
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} else if calendar.component(.year, from: self) == calendar.component(.year, from: .now) {
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// The day and month if it was this year.
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return formatted(.dateTime.weekday(.wide).day().month(.wide))
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} else {
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// The day, month and year if it is any older.
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return formatted(.dateTime.weekday(.wide).day().month(.wide).year())
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}
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}
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/// The date formatted as just the time, for use in timeline items specifically.
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func formattedTime() -> String {
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formatted(date: .omitted, time: .shortened)
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}
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/// A fixed date used for mocks, previews etc.
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static var mock: Date {
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DateComponents(calendar: .current, year: 2007, month: 1, day: 9, hour: 9, minute: 41).date ?? .now
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}
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}
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private extension DateFormatter {
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// There doesn't appear to be a way to get "Today" out of
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// `Date.RelativeFormatStyle` so use the old way instead 😐
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static let relative: DateFormatter = {
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let formatter = DateFormatter()
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formatter.doesRelativeDateFormatting = true
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formatter.dateStyle = .long
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formatter.timeStyle = .none
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return formatter
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}()
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}
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