import AppKitimport CodexBarCoreimport QuartzCore extension StatusItemController {    private static let providerSwitcherMenuRebuildDebounceNanoseconds: UInt64 = 0     private struct ScheduledOpenMenuRebuild {        let provider: UsageProvider?        let shouldCloseHostedSubviewMenus: Bool        let resyncReadinessBaselineAfterRebuild: Bool        let beforeRebuild: (@MainActor () -> Bool)?    }     func didMenuAdjunctReadinessChange() -> Bool {        let signature = self.menuAdjunctReadinessSignature()        defer { self.recordMenuAdjunctReadinessBaseline(signature) }        return signature != self.lastMenuAdjunctReadinessSignature    }     /// Resyncs the readiness baseline to the data the menu was just built from.    ///    /// Because the baseline is no longer recomputed on every store change while all menus are closed,    /// it can drift from the live store state. When a root menu opens and is actually rebuilt (or is    /// already fresh for the current `menuContentVersion`), the baseline must be re-anchored here;    /// otherwise a later open-menu store change that happens to revert to the stale baseline value would    /// be treated as "unchanged" and skip a needed rebuild, leaving the visible menu showing the older    /// content. Callers must **not** invoke this when `refreshMenuForOpenIfNeeded` preserved stale    /// content during an in-flight refresh — that would record live store data while the visible menu    /// still shows older content and mask the refresh-completion update.    func resyncMenuAdjunctReadinessBaseline() {        self.recordMenuAdjunctReadinessBaseline(self.menuAdjunctReadinessSignature())    }     /// Resyncs a root-menu baseline after open and handles the narrow race where a store change    /// has updated live data but its deferred observation task has not invalidated menus yet.    ///    /// If a previously fresh menu sees new live data before the observer version tick, invalidate all    /// menus first and rebuild only the opened menu. The matching observer can then skip the expensive    /// readiness comparison while still invalidating menu-observed state that is not in the signature.    func resyncMenuAdjunctReadinessBaselineForRootOpen(        _ menu: NSMenu,        provider: UsageProvider?,        menuWasFreshBeforeOpen: Bool)    {        let signature = self.menuAdjunctReadinessSignature()        let menuKey = ObjectIdentifier(menu)        let menuRenderedCurrentSignature = self.menuVersions[menuKey] == self.menuContentVersion &&            self.menuReadinessSignatures[menuKey] == signature        guard signature != self.lastMenuAdjunctReadinessSignature else {            guard menuWasFreshBeforeOpen, !menuRenderedCurrentSignature else {                self.lastMenuAdjunctReadinessBaselineVersion = self.menuContentVersion                return            }            guard !self.isMenuDataRefreshInFlight else { return }            self.invalidateMenus()            self.populateMenu(menu, provider: provider)            self.markMenuFresh(menu)            self.rememberRootOpenHandledMenuObservation(signature: signature)            self.recordMenuAdjunctReadinessBaseline(signature)            return        }         if menuWasFreshBeforeOpen {            if self.isMenuDataRefreshInFlight, !menuRenderedCurrentSignature {                return            }            if menuRenderedCurrentSignature {                self.recordMenuAdjunctReadinessBaseline(signature)                return            }            self.invalidateMenus()            self.populateMenu(menu, provider: provider)            self.markMenuFresh(menu)            self.rememberRootOpenHandledMenuObservation(signature: signature)        }        self.recordMenuAdjunctReadinessBaseline(signature)    }     private func recordMenuAdjunctReadinessBaseline(_ signature: String) {        self.lastMenuAdjunctReadinessSignature = signature        self.lastMenuAdjunctReadinessBaselineVersion = self.menuContentVersion    }     private func rememberRootOpenHandledMenuObservation(signature: String) {        self.rootOpenHandledMenuObservationSignature = signature        Task { @MainActor [weak self] in            await Task.yield()            if self?.rootOpenHandledMenuObservationSignature == signature {                self?.rootOpenHandledMenuObservationSignature = nil            }        }    }     func consumeRootOpenHandledMenuObservationIfNeeded() -> Bool {        guard let handledSignature = self.rootOpenHandledMenuObservationSignature else { return false }        let signature = self.menuAdjunctReadinessSignature()        guard signature == handledSignature else {            self.rootOpenHandledMenuObservationSignature = nil            return false        }        self.rootOpenHandledMenuObservationSignature = nil        self.recordMenuAdjunctReadinessBaseline(signature)        return true    }     func menuAdjunctReadinessSignature() -> String {        let dashboard = self.store.openAIDashboard        let dashboardUsageBreakdown = OpenAIDashboardDailyBreakdown.removingSkillUsageServices(            from: dashboard?.usageBreakdown ?? [])        var parts = [            "costEnabled=\(self.settings.costUsageEnabled ? "1" : "0")",            "openAIAttached=\(self.store.openAIDashboardAttachmentAuthorized ? "1" : "0")",            "openAILogin=\(self.store.openAIDashboardRequiresLogin ? "1" : "0")",            "openAIUpdated=\(Self.millisecondsSinceEpoch(dashboard?.updatedAt))",            "openAIDaily=\(Self.dashboardBreakdownReadinessSignature(dashboard?.dailyBreakdown ?? []))",            "openAIUsage=\(Self.dashboardBreakdownReadinessSignature(dashboardUsageBreakdown))",            "credits=\(self.store.credits == nil ? "0" : "1")",            "planHistoryRevision=\(self.store.planUtilizationHistoryRevision)",        ]         for provider in self.store.enabledProvidersForDisplay() {            let tokenSignature = self.tokenSnapshotReadinessSignature(for: provider)            let usageHistoryVisible = self.store.supportsPlanUtilizationHistory(for: provider) &&                !self.store.shouldHidePlanUtilizationMenuItem(for: provider)            parts.append(                [                    provider.rawValue,                    "token=\(tokenSignature)",                    "refreshing=\(self.store.shouldShowRefreshingMenuCardIndicator(for: provider) ? "1" : "0")",                    "usageHistory=\(usageHistoryVisible ? "1" : "0")",                ].joined(separator: ":"))        }         return parts.joined(separator: "|")    }     static func dashboardBreakdownReadinessSignature(        _ breakdown: [OpenAIDashboardDailyBreakdown]) -> String    {        breakdown            .map { day in                let services = day.services                    .map { "\($0.service)=\(Self.formatDoubleForSignature($0.creditsUsed))" }                    .joined(separator: ",")                return [                    day.day,                    Self.formatDoubleForSignature(day.totalCreditsUsed),                    services,                ].joined(separator: ":")            }            .joined(separator: ";")    }     private func tokenSnapshotReadinessSignature(for provider: UsageProvider) -> String {        guard let snapshot = self.store.tokenSnapshot(for: provider) else { return "none" }        let daily = snapshot.daily            .map { entry in                [                    entry.date,                    "\(entry.totalTokens ?? -1)",                    Self.formatOptionalDoubleForSignature(entry.costUSD),                ].joined(separator: ",")            }            .joined(separator: ";")        return [            "sessionTokens=\(snapshot.sessionTokens ?? -1)",            "sessionCost=\(Self.formatOptionalDoubleForSignature(snapshot.sessionCostUSD))",            "lastTokens=\(snapshot.last30DaysTokens ?? -1)",            "lastCost=\(Self.formatOptionalDoubleForSignature(snapshot.last30DaysCostUSD))",            "updated=\(Int(snapshot.updatedAt.timeIntervalSince1970 * 1000))",            "daily=\(daily)",        ].joined(separator: ",")    }     private static func millisecondsSinceEpoch(_ date: Date?) -> Int {        guard let date else { return -1 }        return Int(date.timeIntervalSince1970 * 1000)    }     private static func formatOptionalDoubleForSignature(_ value: Double?) -> String {        guard let value else { return "nil" }        return self.formatDoubleForSignature(value)    }     /// The signature is only ever compared for equality against the previous signature, so it does    /// not need a human-readable decimal form. `String(format: "%.8f", …)` is a surprisingly hot    /// cost here because it runs for every daily/service value across every enabled provider on each    /// store mutation. The raw bit pattern is both exact (no rounding collisions) and far cheaper.    private static func formatDoubleForSignature(_ value: Double) -> String {        String(value.bitPattern, radix: 16)    }     func performMenuMutationWithoutAnimation(_ updates: () -> Void) {        CATransaction.begin()        CATransaction.setDisableActions(true)        defer { CATransaction.commit() }        updates()    }     func deferSwitcherMenuRebuildIfStillVisible(_ menu: NSMenu, provider: UsageProvider?) {        self.providerSwitcherUpdateToken &+= 1        let updateToken = self.providerSwitcherUpdateToken        #if DEBUG        let debounceNanoseconds = self._test_providerSwitcherMenuRebuildDebounceNanoseconds ?? (            self._test_openMenuRebuildObserver == nil ? Self.providerSwitcherMenuRebuildDebounceNanoseconds : 0)        #else        let debounceNanoseconds = Self.providerSwitcherMenuRebuildDebounceNanoseconds        #endif        #if DEBUG        let usesTaskSchedulerForTesting = self._test_openMenuRefreshYieldOverride != nil            || self._test_openMenuRebuildObserver != nil        #else        let usesTaskSchedulerForTesting = false        #endif        if debounceNanoseconds == 0, !usesTaskSchedulerForTesting {            self.scheduleProviderSwitcherTrackingMenuRebuildIfStillVisible(                menu,                provider: provider)            { [weak self] in                guard let self else { return false }                return self.providerSwitcherUpdateToken == updateToken            }            return        }        self.scheduleOpenMenuRebuildIfStillVisible(            menu,            provider: provider,            closeHostedSubviewMenusBeforeRebuild: true,            debounceNanoseconds: debounceNanoseconds)        { [weak self] in            guard let self else { return false }            return self.providerSwitcherUpdateToken == updateToken        }    }     private func scheduleProviderSwitcherTrackingMenuRebuildIfStillVisible(        _ menu: NSMenu,        provider: UsageProvider?,        beforeRebuild: @escaping @MainActor () -> Bool)    {        let key = ObjectIdentifier(menu)        self.openMenuRebuildsClosingHostedSubviewMenus.insert(key)        self.openMenuRebuildTokenCounter &+= 1        let rebuildToken = self.openMenuRebuildTokenCounter        self.openMenuRebuildTokens[key] = rebuildToken        self.openMenuRebuildTasks.removeValue(forKey: key)?.cancel()         ProviderSwitcherTrackingRunLoopScheduler.schedule { [weak self, weak menu] in            guard let self, let menu else { return }            self.performScheduledOpenMenuRebuild(                menu,                key: key,                rebuildToken: rebuildToken,                request: ScheduledOpenMenuRebuild(                    provider: provider,                    shouldCloseHostedSubviewMenus: true,                    resyncReadinessBaselineAfterRebuild: false,                    beforeRebuild: beforeRebuild))        }    }     func scheduleOpenMenuRebuildIfStillVisible(        _ menu: NSMenu,        provider: UsageProvider?,        closeHostedSubviewMenusBeforeRebuild: Bool = false,        resyncReadinessBaselineAfterRebuild: Bool = false,        debounceNanoseconds: UInt64 = 0,        beforeRebuild: (@MainActor () -> Bool)? = nil)    {        let key = ObjectIdentifier(menu)        if closeHostedSubviewMenusBeforeRebuild {            self.openMenuRebuildsClosingHostedSubviewMenus.insert(key)        }        let shouldCloseHostedSubviewMenus = self.openMenuRebuildsClosingHostedSubviewMenus.contains(key)        self.openMenuRebuildTokenCounter &+= 1        let rebuildToken = self.openMenuRebuildTokenCounter        self.openMenuRebuildTokens[key] = rebuildToken        self.openMenuRebuildTasks[key]?.cancel()        self.openMenuRebuildTasks[key] = Task { @MainActor [weak self, weak menu] in            guard let self, let menu else { return }            #if DEBUG            if let override = self._test_openMenuRefreshYieldOverride {                await override()            } else {                await Task.yield()            }            #else            await Task.yield()            #endif            if debounceNanoseconds > 0 {                try? await Task.sleep(nanoseconds: debounceNanoseconds)            }            guard !Task.isCancelled else { return }            self.performScheduledOpenMenuRebuild(                menu,                key: key,                rebuildToken: rebuildToken,                request: ScheduledOpenMenuRebuild(                    provider: provider,                    shouldCloseHostedSubviewMenus: shouldCloseHostedSubviewMenus,                    resyncReadinessBaselineAfterRebuild: resyncReadinessBaselineAfterRebuild,                    beforeRebuild: beforeRebuild))        }    }     private func performScheduledOpenMenuRebuild(        _ menu: NSMenu,        key: ObjectIdentifier,        rebuildToken: Int,        request: ScheduledOpenMenuRebuild)    {        guard self.openMenuRebuildTokens[key] == rebuildToken else { return }        defer {            if self.openMenuRebuildTokens[key] == rebuildToken {                self.openMenuRebuildTasks.removeValue(forKey: key)                self.openMenuRebuildTokens.removeValue(forKey: key)                self.openMenuRebuildsClosingHostedSubviewMenus.remove(key)            }        }        guard self.openMenus[key] != nil else { return }        guard request.beforeRebuild?() ?? true else { return }        if request.shouldCloseHostedSubviewMenus {            self.closeHostedSubviewMenusForParentSwitch()        }        self.rebuildOpenMenuIfStillVisible(menu, provider: request.provider)        if request.resyncReadinessBaselineAfterRebuild, !self.menuNeedsRefresh(menu) {            self.resyncMenuAdjunctReadinessBaseline()        }    }     private func closeHostedSubviewMenusForParentSwitch() {        let hostedMenus = self.openMenus.values.filter { self.isHostedSubviewMenu($0) }        for hostedMenu in hostedMenus {            hostedMenu.cancelTrackingWithoutAnimation()            self.forgetClosedMenu(hostedMenu)        }    }}