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// |
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// SidebarAutoHelpResolver.swift |
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// USB Meter |
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// |
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import Foundation |
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import CoreBluetooth |
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enum SidebarAutoHelpResolver {
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static func activeReason( |
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managerState: CBManagerState, |
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cloudAvailability: MeterNameStore.CloudAvailability, |
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hasLiveMeters: Bool, |
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scanStartedAt: Date?, |
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now: Date, |
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noDevicesHelpDelay: TimeInterval |
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) -> SidebarHelpReason? {
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if managerState == .unauthorized {
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return .bluetoothPermission |
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} |
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if shouldPromptForCloudSync(cloudAvailability) {
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return .cloudSyncUnavailable |
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} |
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if hasWaitedLongEnoughForDevices( |
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managerState: managerState, |
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hasLiveMeters: hasLiveMeters, |
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scanStartedAt: scanStartedAt, |
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now: now, |
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noDevicesHelpDelay: noDevicesHelpDelay |
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) {
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return .noDevicesDetected |
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} |
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return nil |
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} |
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private static func shouldPromptForCloudSync(_ cloudAvailability: MeterNameStore.CloudAvailability) -> Bool {
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switch cloudAvailability {
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case .noAccount, .error: |
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return true |
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case .unknown, .available: |
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return false |
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} |
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} |
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private static func hasWaitedLongEnoughForDevices( |
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managerState: CBManagerState, |
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hasLiveMeters: Bool, |
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scanStartedAt: Date?, |
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now: Date, |
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noDevicesHelpDelay: TimeInterval |
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) -> Bool {
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guard managerState == .poweredOn else {
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return false |
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} |
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guard hasLiveMeters == false else {
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return false |
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} |
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guard let scanStartedAt else {
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return false |
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} |
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return now.timeIntervalSince(scanStartedAt) >= noDevicesHelpDelay |
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} |
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} |