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MessageKitDateFormatter.swift
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70 lines (56 loc) · 2.41 KB
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// MIT License
//
// Copyright (c) 2017-2019 MessageKit
//
// Permission is hereby granted, free of charge, to any person obtaining a copy
// of this software and associated documentation files (the "Software"), to deal
// in the Software without restriction, including without limitation the rights
// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
// copies of the Software, and to permit persons to whom the Software is
// furnished to do so, subject to the following conditions:
//
// The above copyright notice and this permission notice shall be included in all
// copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
// SOFTWARE.
import Foundation
open class MessageKitDateFormatter: @unchecked Sendable {
// MARK: Lifecycle
// MARK: - Initializer
private init() { }
// MARK: Open
open func configureDateFormatter(for date: Date) {
switch true {
case Calendar.current.isDateInToday(date) || Calendar.current.isDateInYesterday(date):
formatter.doesRelativeDateFormatting = true
formatter.dateStyle = .short
formatter.timeStyle = .short
case Calendar.current.isDate(date, equalTo: Date(), toGranularity: .weekOfYear):
formatter.dateFormat = "EEEE h:mm a"
case Calendar.current.isDate(date, equalTo: Date(), toGranularity: .year):
formatter.dateFormat = "E, d MMM, h:mm a"
default:
formatter.dateFormat = "MMM d, yyyy, h:mm a"
}
}
// MARK: Public
// MARK: - Properties
public static let shared = MessageKitDateFormatter()
// MARK: - Methods
public func string(from date: Date) -> String {
configureDateFormatter(for: date)
return formatter.string(from: date)
}
public func attributedString(from date: Date, with attributes: [NSAttributedString.Key: Any]) -> NSAttributedString {
let dateString = string(from: date)
return NSAttributedString(string: dateString, attributes: attributes)
}
// MARK: Private
private let formatter = DateFormatter()
}