import Foundation

/// One exposure event for `POST /api/feature-control/telemetry/exposure`.
public struct FeatureControlExposureEvent: Encodable, Sendable, Equatable {
    public let featureKey: String
    public let variant: String?
    public let subjectType: FeatureControlSubjectType
    public let storeId: String?

    public init(featureKey: String, variant: String?, subjectType: FeatureControlSubjectType, storeId: String?) {
        self.featureKey = featureKey
        self.variant = variant
        self.subjectType = subjectType
        self.storeId = storeId
    }
}

/// Request body — server caps `events` at 100 (`maxItems: 100`); batching into that
/// limit is the caller's (`FeatureControlManager`'s) job, not this type's.
struct FeatureControlExposureBatchBody: Encodable, Sendable {
    let events: [FeatureControlExposureEvent]
}

/// Wire envelope for the telemetry response — `{error, code, result: {count}}`.
struct FeatureControlExposureBatchEnvelope: Decodable, Sendable {
    let error: Bool
    let code: String?
}