//

// CarbValue.swift

//

// Copyright © 2017 LoopKit Authors. All rights reserved.

//

import Foundation

public struct CarbValue: SampleValue {

public let startDate: Date

public let endDate: Date

public var value: Double

public var quantity: LoopQuantity {

return LoopQuantity(unit: .gram, doubleValue: value)

}

public init(startDate: Date, endDate: Date? = nil, value: Double) {

self.startDate = startDate

self.endDate = endDate ?? startDate

self.value = value

}

}

extension CarbValue: Equatable {}

extension CarbValue: Codable {

public init(from decoder: Decoder) throws {

let container = try decoder.container(keyedBy: CodingKeys.self)

self.startDate = try container.decode(Date.self, forKey: .startDate)

self.endDate = try container.decode(Date.self, forKey: .endDate)

self.value = try container.decode(Double.self, forKey: .value)

}

public func encode(to encoder: Encoder) throws {

var container = encoder.container(keyedBy: CodingKeys.self)

try container.encode(startDate, forKey: .startDate)

try container.encode(endDate, forKey: .endDate)

try container.encode(value, forKey: .value)

}

private enum CodingKeys: String, CodingKey {

case startDate

case endDate

case value

}

}