417 lines
17 KiB
Swift
417 lines
17 KiB
Swift
import SwiftUI
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import WebKit
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@MainActor
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class UsageViewModel: ObservableObject {
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@Published var limits: [AgentLimit] = []
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@Published var isLoading = false
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@Published var lastUpdated: Date?
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@Published var errorMessage: String?
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@Published var extraUsage: ExtraUsage?
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@Published var prepaidCredits: PrepaidCredits?
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@Published var overageSpendLimit: OverageSpendLimit?
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@Published var planLabel: String = "Claude"
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@Published var isNotAuthenticated: Bool = false
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@Published var isSignedIn: Bool = false
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@Published var userEmail: String = ""
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@Published var triggerLogin: Bool = false
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@Published var showInMenuBar: Bool = true {
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didSet { UserDefaults.standard.set(showInMenuBar, forKey: "show_in_menubar") }
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}
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@Published var refreshInterval: TimeInterval = 60 {
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didSet {
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UserDefaults.standard.set(refreshInterval, forKey: "refresh_interval")
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NotificationCenter.default.post(name: .refreshIntervalChanged, object: refreshInterval)
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}
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}
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private var burnHistoryStore: [String: [Double]] = [:]
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private let maxHistorySamples = 24
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private var previousPercents: [String: Double] = [:]
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private var firedThresholds: [String: Set<Int>] = [:]
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// Diagnostics — populated on every urlFetch call
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@Published var diagCookieCount: Int = 0
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@Published var diagClaudeCookieCount: Int = 0
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@Published var diagCookieDomains: [String] = []
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@Published var diagLastPath: String = ""
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@Published var diagLastStatus: Int = 0
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@Published var diagLastBody: String = ""
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@Published var diagLastError: String = ""
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@Published var diagLastFetch: Date? = nil
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init() {
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let saved = UserDefaults.standard.double(forKey: "refresh_interval")
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refreshInterval = saved > 0 ? saved : 60
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showInMenuBar = UserDefaults.standard.object(forKey: "show_in_menubar") as? Bool ?? true
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if let saved = UserDefaults.standard.object(forKey: "burn_history") as? [String: [Double]] {
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burnHistoryStore = saved
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}
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loadPlaceholderData()
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Task { await checkInitialSignInState() }
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}
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// Called after login: poll until session cookies appear (they may commit slightly
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// after the auth redirect fires), then refresh.
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func adoptAndRefresh(_ loginWebView: WKWebView) async {
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for _ in 0..<30 {
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let cookies = await WKWebsiteDataStore.default().httpCookieStore.allCookies()
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if cookies.contains(where: { $0.domain.contains("claude.ai") }) { break }
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try? await Task.sleep(nanoseconds: 300_000_000)
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}
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await refresh()
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}
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// Fetches an API path via URLSession with browser-like headers.
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// Claude.ai's API requires sec-fetch-*, Origin, Referer, and a browser User-Agent
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// to avoid 401 — matching how the Windows version (HttpClient) handles this.
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private func urlFetch(_ path: String) async throws -> (Int, String) {
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let cookies = await WKWebsiteDataStore.default().httpCookieStore.allCookies()
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let claudeCookies = cookies.filter {
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$0.domain.contains("claude.ai") || $0.domain.contains("anthropic.com")
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}
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// Record cookie diagnostics
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diagCookieCount = cookies.count
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diagClaudeCookieCount = claudeCookies.count
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diagCookieDomains = Array(Set(cookies.map { $0.domain })).sorted()
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diagLastPath = path
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diagLastFetch = Date()
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diagLastError = ""
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guard !claudeCookies.isEmpty else {
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let msg = "No claude.ai cookies (\(cookies.count) total in store)"
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diagLastError = msg
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throw AppError.detail(msg)
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}
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var req = URLRequest(url: URL(string: "https://claude.ai\(path)")!)
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req.httpShouldHandleCookies = false
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if let cookieHeader = HTTPCookie.requestHeaderFields(with: claudeCookies)["Cookie"] {
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req.setValue(cookieHeader, forHTTPHeaderField: "Cookie")
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}
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req.setValue("application/json", forHTTPHeaderField: "Accept")
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req.setValue("https://claude.ai", forHTTPHeaderField: "Origin")
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req.setValue("https://claude.ai/", forHTTPHeaderField: "Referer")
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req.setValue("empty", forHTTPHeaderField: "sec-fetch-dest")
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req.setValue("cors", forHTTPHeaderField: "sec-fetch-mode")
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req.setValue("same-origin", forHTTPHeaderField: "sec-fetch-site")
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req.setValue(
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"Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/124.0.0.0 Safari/537.36",
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forHTTPHeaderField: "User-Agent")
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req.setValue(
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"\"Chromium\";v=\"124\", \"Google Chrome\";v=\"124\", \"Not-A.Brand\";v=\"99\"",
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forHTTPHeaderField: "sec-ch-ua")
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req.setValue("?0", forHTTPHeaderField: "sec-ch-ua-mobile")
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req.setValue("\"macOS\"", forHTTPHeaderField: "sec-ch-ua-platform")
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do {
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let (data, response) = try await URLSession.shared.data(for: req)
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guard let http = response as? HTTPURLResponse else { throw AppError.networkError }
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let body = String(data: data, encoding: .utf8) ?? ""
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diagLastStatus = http.statusCode
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diagLastBody = String(body.prefix(500))
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if http.statusCode != 200 {
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diagLastError = "HTTP \(http.statusCode)"
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}
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return (http.statusCode, body)
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} catch let e as AppError { throw e }
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catch {
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let msg = error.localizedDescription
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diagLastError = msg
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throw AppError.detail(msg)
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}
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}
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private func checkInitialSignInState() async {
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let cookies = await WKWebsiteDataStore.default().httpCookieStore.allCookies()
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if !cookies.isEmpty { isSignedIn = true }
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}
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func signOut() async {
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let store = WKWebsiteDataStore.default()
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let types = WKWebsiteDataStore.allWebsiteDataTypes()
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let records = await store.dataRecords(ofTypes: types)
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let claudeRecords = records.filter { $0.displayName.contains("claude.ai") || $0.displayName.contains("anthropic.com") }
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await store.removeData(ofTypes: types, for: claudeRecords)
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UserDefaults.standard.removeObject(forKey: "claude_org_id")
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isSignedIn = false
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isNotAuthenticated = true
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lastUpdated = nil
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userEmail = ""
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limits = []
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extraUsage = nil
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prepaidCredits = nil
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overageSpendLimit = nil
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}
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func refresh() async {
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isLoading = true
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errorMessage = nil
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isNotAuthenticated = false
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defer { isLoading = false }
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do {
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let (fetchedOrgId, fetchedEmail, fetchedPlan) = try await fetchBootstrap()
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let orgId: String
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if let id = fetchedOrgId {
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UserDefaults.standard.set(id, forKey: "claude_org_id")
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orgId = id
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} else if let cached = UserDefaults.standard.string(forKey: "claude_org_id") {
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orgId = cached
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} else {
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throw AppError.notAuthenticated
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}
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if let email = fetchedEmail { userEmail = email }
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if let plan = fetchedPlan { planLabel = plan }
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async let usageFetch = fetchUsage(orgId: orgId)
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async let prepaidFetch = fetchPrepaidCredits(orgId: orgId)
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async let overageFetch = fetchOverageSpendLimit(orgId: orgId)
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let (usage, prepaid, overage) = try await (usageFetch, prepaidFetch, overageFetch)
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limits = buildLimits(from: usage)
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extraUsage = usage.extraUsage
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prepaidCredits = prepaid
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overageSpendLimit = overage
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lastUpdated = Date()
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isSignedIn = true
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for i in limits.indices {
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let key = limits[i].window.rawValue
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var history = burnHistoryStore[key] ?? []
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history.append(limits[i].usedPercent)
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if history.count > maxHistorySamples { history.removeFirst() }
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burnHistoryStore[key] = history
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limits[i].burnHistory = history
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}
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UserDefaults.standard.set(burnHistoryStore, forKey: "burn_history")
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checkLimitNotifications(for: limits)
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} catch AppError.notAuthenticated {
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isNotAuthenticated = true
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isSignedIn = false
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errorMessage = "Not signed in"
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} catch let error as DecodingError {
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switch error {
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case .keyNotFound(let key, let ctx):
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errorMessage = "Missing key '\(key.stringValue)' at \(ctx.codingPath.map(\.stringValue).joined(separator: "."))"
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case .typeMismatch(let type, let ctx):
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errorMessage = "Type mismatch (\(type)) at \(ctx.codingPath.map(\.stringValue).joined(separator: "."))"
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case .valueNotFound(let type, let ctx):
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errorMessage = "Value not found (\(type)) at \(ctx.codingPath.map(\.stringValue).joined(separator: "."))"
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default:
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errorMessage = error.localizedDescription
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}
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} catch {
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errorMessage = error.localizedDescription
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}
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}
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// MARK: - Bootstrap
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private func fetchBootstrap() async throws -> (orgId: String?, email: String?, planLabel: String?) {
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let (status, body) = try await urlFetch("/api/bootstrap")
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if status == 401 || status == 403 {
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throw AppError.detail("HTTP \(status) — \(body.prefix(120))")
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}
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guard status == 200 else { throw AppError.detail("HTTP \(status): \(body.prefix(80))") }
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guard body.trimmingCharacters(in: .whitespacesAndNewlines).hasPrefix("{") else {
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throw AppError.detail("Non-JSON response (HTML?): \(body.prefix(80))")
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}
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guard let data = body.data(using: .utf8),
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let json = try? JSONSerialization.jsonObject(with: data) as? [String: Any] else {
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return (nil, nil, nil)
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}
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let account = json["account"] as? [String: Any]
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let memberships = (account?["memberships"] ?? json["memberships"]) as? [[String: Any]]
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let firstOrg = memberships?.first?["organization"] as? [String: Any]
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var orgId: String? = firstOrg?["uuid"] as? String
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if orgId == nil {
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orgId = (json["organizations"] as? [[String: Any]])?.first?["uuid"] as? String
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}
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if orgId == nil {
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if let (orgsStatus, orgsBody) = try? await urlFetch("/api/organizations"),
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orgsStatus == 200,
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let orgsData = orgsBody.data(using: .utf8),
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let orgs = try? JSONSerialization.jsonObject(with: orgsData) as? [[String: Any]] {
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orgId = orgs.first?["uuid"] as? String
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}
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}
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let email = account?["email_address"] as? String
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var planLabel: String? = nil
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if let caps = firstOrg?["capabilities"] as? [String],
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let cap = caps.first(where: { $0.hasPrefix("claude_") }) {
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let name = String(cap.dropFirst("claude_".count))
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planLabel = name.prefix(1).uppercased() + name.dropFirst().lowercased()
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}
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return (orgId, email, planLabel)
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}
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// MARK: - Fetch usage
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private func fetchUsage(orgId: String) async throws -> UsageResponse {
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let (status, body) = try await urlFetch("/api/organizations/\(orgId)/usage")
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if status == 401 || status == 403 { throw AppError.notAuthenticated }
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guard status == 200 else { throw AppError.networkError }
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guard let data = body.data(using: .utf8) else { throw AppError.networkError }
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return try JSONDecoder().decode(UsageResponse.self, from: data)
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}
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private func fetchPrepaidCredits(orgId: String) async throws -> PrepaidCredits? {
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guard let (status, body) = try? await urlFetch("/api/organizations/\(orgId)/prepaid/credits"),
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status == 200,
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let data = body.data(using: .utf8) else { return nil }
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return try? JSONDecoder().decode(PrepaidCredits.self, from: data)
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}
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private func fetchOverageSpendLimit(orgId: String) async throws -> OverageSpendLimit? {
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guard let (status, body) = try? await urlFetch("/api/organizations/\(orgId)/overage_spend_limit"),
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status == 200,
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let data = body.data(using: .utf8) else { return nil }
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return try? JSONDecoder().decode(OverageSpendLimit.self, from: data)
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}
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// MARK: - Build limits
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private func buildLimits(from usage: UsageResponse) -> [AgentLimit] {
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let now = Date()
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let iso = ISO8601DateFormatter()
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iso.formatOptions = [.withInternetDateTime, .withFractionalSeconds]
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func parseDate(_ str: String?) -> Date {
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guard let str else { return now.addingTimeInterval(3600) }
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return iso.date(from: str) ?? now.addingTimeInterval(3600)
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}
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func timeLeft(until reset: Date) -> String {
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let diff = max(0, reset.timeIntervalSince(now))
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if diff == 0 { return "resetting..." }
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let h = Int(diff / 3600)
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let m = Int((diff.truncatingRemainder(dividingBy: 3600)) / 60)
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if h >= 24 { return "\(h/24)d \(h%24)h" }
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return "\(h)h \(m)m"
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}
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func projected(pct: Double, windowHours: Double, reset: Date) -> ProjectedHit {
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guard pct > 0 else { return .afterReset }
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let rate = pct / windowHours
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guard rate > 0 else { return .afterReset }
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let hit = now.addingTimeInterval(((100 - pct) / rate) * 3600)
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return hit > reset ? .afterReset : .at(hit)
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}
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var result: [AgentLimit] = []
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if let fh = usage.fiveHour {
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let reset = parseDate(fh.resetsAt)
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let pct = min(100, max(0, fh.utilization))
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result.append(AgentLimit(
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agent: .claude, window: .fiveHour,
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usedPercent: pct,
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timeRemaining: timeLeft(until: reset),
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resetDate: reset,
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projectedHit: projected(pct: pct, windowHours: 5, reset: reset),
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burnRate: pct / 5.0,
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burnHistory: burnHistoryStore["5h"] ?? [pct],
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isLive: true
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))
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}
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if let sd = usage.sevenDay {
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let reset = parseDate(sd.resetsAt)
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let pct = min(100, max(0, sd.utilization))
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result.append(AgentLimit(
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agent: .claude, window: .sevenDay,
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usedPercent: pct,
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timeRemaining: timeLeft(until: reset),
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resetDate: reset,
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projectedHit: projected(pct: pct, windowHours: 7*24, reset: reset),
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burnRate: pct / (7*24.0),
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burnHistory: burnHistoryStore["7d"] ?? [pct],
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isLive: true
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))
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}
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return result
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}
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// MARK: - Limit notifications
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private func checkLimitNotifications(for limits: [AgentLimit]) {
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let thresholds = [80, 95]
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for limit in limits {
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let key = limit.window.rawValue
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let curr = limit.usedPercent
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let prev = previousPercents[key]
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var fired = firedThresholds[key] ?? []
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for t in thresholds {
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let threshold = Double(t)
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guard curr >= threshold, prev ?? threshold < threshold, !fired.contains(t) else { continue }
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fired.insert(t)
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NotificationCenter.default.post(
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name: .limitWarning,
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object: nil,
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userInfo: ["windowName": limit.window.displayName, "percent": t]
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)
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}
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if let prev, prev > 50, curr < 20 {
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fired.removeAll()
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NotificationCenter.default.post(
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name: .limitReset,
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object: nil,
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userInfo: ["windowName": limit.window.displayName]
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)
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}
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firedThresholds[key] = fired
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previousPercents[key] = curr
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}
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}
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private func loadPlaceholderData() {
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let now = Date()
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limits = [
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AgentLimit(agent: .claude, window: .fiveHour,
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usedPercent: 0, timeRemaining: "—",
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resetDate: now.addingTimeInterval(3600),
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projectedHit: .afterReset, burnRate: 0,
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burnHistory: [], isLive: false),
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AgentLimit(agent: .claude, window: .sevenDay,
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usedPercent: 0, timeRemaining: "—",
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resetDate: now.addingTimeInterval(7*24*3600),
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projectedHit: .afterReset, burnRate: 0,
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burnHistory: [], isLive: false),
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]
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}
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}
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enum AppError: LocalizedError {
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case notAuthenticated
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case networkError
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case detail(String)
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var errorDescription: String? {
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switch self {
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case .notAuthenticated: return "Not signed into claude.ai — open claude.ai in your browser first."
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case .networkError: return "Network error fetching usage data."
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case .detail(let msg): return msg
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}
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}
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}
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extension Notification.Name {
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static let refreshIntervalChanged = Notification.Name("refreshIntervalChanged")
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static let closePopover = Notification.Name("closePopover")
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static let showPopover = Notification.Name("showPopover")
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static let popoverWillOpen = Notification.Name("popoverWillOpen")
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static let updateDetected = Notification.Name("updateDetected")
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static let limitWarning = Notification.Name("limitWarning")
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static let limitReset = Notification.Name("limitReset")
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static let openUpdateSheet = Notification.Name("openUpdateSheet")
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}
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