73 lines
2.9 KiB
Swift
73 lines
2.9 KiB
Swift
//
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// Copyright (c) 2017 Touch Instinct
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//
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// Permission is hereby granted, free of charge, to any person obtaining a copy
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// of this software and associated documentation files (the Software), to deal
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// in the Software without restriction, including without limitation the rights
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// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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// copies of the Software, and to permit persons to whom the Software is
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// furnished to do so, subject to the following conditions:
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//
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// The above copyright notice and this permission notice shall be included in
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// all copies or substantial portions of the Software.
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//
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// THE SOFTWARE IS PROVIDED AS IS, WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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// THE SOFTWARE.
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//
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import Foundation
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/// Date formatting service. Used for date to string and string to date formatting.
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/// Takes into account locale and timezone.
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open class DateFormattingService {
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private var dateFormatters: [DateFormattingArguments: DateFormatter] = [:]
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public init(formattingArguments: [DateFormattingArguments] = []) {
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for argument in formattingArguments {
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register(arguments: argument)
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}
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}
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/// DateFormatter registration method.
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///
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/// - Parameter arguments: A formatting arguments structure.
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public func register(arguments: DateFormattingArguments) {
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dateFormatters[arguments] = arguments.dateFormatter
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}
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/// String to date convertion method.
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///
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/// - Parameters:
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/// - dateString: The string to parse.
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/// - arguments: A formatting arguments structure.
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/// - Returns: A date representation of a given string interpreted using given arguments.
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public func date(from dateString: String, arguments: DateFormattingArguments) -> Date? {
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guard let dateFormatter = dateFormatters[arguments] else {
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fatalError("No date formatter registered for given arguments: \(arguments)")
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}
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return dateFormatter.date(from: dateString)
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}
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/// Date to string convertion method.
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///
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/// - Parameters:
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/// - date: The date to format.
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/// - arguments: A formatting arguments structure.
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/// - Returns: A string representation of a given date formatted using given arguments.
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public func string(from date: Date, arguments: DateFormattingArguments) -> String? {
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guard let dateFormatter = dateFormatters[arguments] else {
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fatalError("No date formatter registered for given arguments: \(arguments)")
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}
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return dateFormatter.string(from: date)
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}
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}
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