Packages/MoonriseKit/Sources/Feeds/SunSnapshot.swift

 1import Foundation
 2
 3/// The NOAA feeds behind the Sun tab, saved after each complete load so the tab has something to show offline.
 4public struct SunSnapshot: Sendable, Equatable, Codable {
 5    public var fetched: Date
 6    public var kp: [KpBar]
 7    public var xray: [XRaySample]
 8    public var ovation: Ovation?
 9    public var scales: NOAAScales?
10    public var probabilities: SolarProbabilities?
11
12    public init(fetched: Date, kp: [KpBar], xray: [XRaySample], ovation: Ovation?, scales: NOAAScales?, probabilities: SolarProbabilities?) {
13        self.fetched = fetched
14        self.kp = kp
15        self.xray = xray
16        self.ovation = ovation
17        self.scales = scales
18        self.probabilities = probabilities
19    }
20
21    public func save(to file: URL) throws {
22        try FileManager.default.createDirectory(at: file.deletingLastPathComponent(), withIntermediateDirectories: true)
23        try JSONEncoder().encode(self).write(to: file, options: .atomic)
24    }
25
26    public static func load(from file: URL) -> SunSnapshot? {
27        (try? Data(contentsOf: file)).flatMap { try? JSONDecoder().decode(SunSnapshot.self, from: $0) }
28    }
29}