firebase-ios-sdk/ReleaseTooling/Sources/Utils/Date+Utils.swift

/*
 * Copyright 2021 Google LLC
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

import Foundation

// MARK: - Date formatting for logs.

public extension Date {
  func dateTimeString() -> String {
    let formatter = DateFormatter()
    formatter.dateStyle = .short
    formatter.timeStyle = .medium
    return formatter.string(from: self)
  }

  func formattedDurationSince(_ date: Date) -> String {
    let formatter = DateComponentsFormatter()
    formatter.unitsStyle = .abbreviated
    formatter.allowedUnits = [.hour, .minute, .second]
    let secondsSinceDate = date.timeIntervalSince(self)
    return formatter.string(from: secondsSinceDate) ?? "\(round(secondsSinceDate)) sec"
  }
}