import AppKitimport CodexBarCoreimport Foundationimport SwiftUI struct BedrockProviderImplementation: ProviderImplementation {    let id: UsageProvider = .bedrock     @MainActor    func presentation(context _: ProviderPresentationContext) -> ProviderPresentation {        ProviderPresentation { _ in "api" }    }     @MainActor    func observeSettings(_ settings: SettingsStore) {        _ = settings.bedrockAuthMode        _ = settings.bedrockProfile        _ = settings.bedrockAccessKeyID        _ = settings.bedrockSecretAccessKey        _ = settings.bedrockRegion    }     @MainActor    func isAvailable(context: ProviderAvailabilityContext) -> Bool {        BedrockSettingsReader.hasCredentials(environment: context.environment)    }     @MainActor    func settingsPickers(context: ProviderSettingsContext) -> [ProviderSettingsPickerDescriptor] {        let binding = Binding(            get: { context.settings.bedrockAuthMode },            set: { context.settings.bedrockAuthMode = $0 })        let options = [            ProviderSettingsPickerOption(id: BedrockAuthMode.keys.rawValue, title: "Access keys"),            ProviderSettingsPickerOption(id: BedrockAuthMode.profile.rawValue, title: "AWS profile"),        ]        return [            ProviderSettingsPickerDescriptor(                id: "bedrock-auth-mode",                title: "Authentication",                subtitle: "Use static access keys, or resolve credentials from a named AWS profile "                    + "(supports SSO and assume-role via the AWS CLI).",                binding: binding,                options: options,                isVisible: nil,                onChange: nil),        ]    }     @MainActor    func settingsFields(context: ProviderSettingsContext) -> [ProviderSettingsFieldDescriptor] {        let isKeysMode = { context.settings.bedrockAuthMode != BedrockAuthMode.profile.rawValue }        let isProfileMode = { context.settings.bedrockAuthMode == BedrockAuthMode.profile.rawValue }        return [            ProviderSettingsFieldDescriptor(                id: "bedrock-profile",                title: "Profile name",                subtitle: "Named AWS profile from ~/.aws/config. Can also be set with AWS_PROFILE.",                kind: .plain,                placeholder: "default",                binding: context.stringBinding(\.bedrockProfile),                actions: [],                isVisible: isProfileMode,                onActivate: nil),            ProviderSettingsFieldDescriptor(                id: "bedrock-access-key-id",                title: "Access key ID",                subtitle: "AWS access key ID. Can also be set with AWS_ACCESS_KEY_ID.",                kind: .secure,                placeholder: "AKIA...",                binding: context.stringBinding(\.bedrockAccessKeyID),                actions: [],                isVisible: isKeysMode,                onActivate: nil),            ProviderSettingsFieldDescriptor(                id: "bedrock-secret-access-key",                title: "Secret access key",                subtitle: "AWS secret access key. Can also be set with AWS_SECRET_ACCESS_KEY.",                kind: .secure,                placeholder: "",                binding: context.stringBinding(\.bedrockSecretAccessKey),                actions: [],                isVisible: isKeysMode,                onActivate: nil),            ProviderSettingsFieldDescriptor(                id: "bedrock-region",                title: "Region",                subtitle: "AWS region. Can also be set with AWS_REGION. "                    + "In profile mode, leave blank to use the profile's region.",                kind: .plain,                placeholder: "us-east-1",                binding: context.stringBinding(\.bedrockRegion),                actions: [],                isVisible: nil,                onActivate: nil),        ]    }}