import Foundation

/// 升级对账结果。
/// - `success`: 设备实际版本 == 目标版本，已成功上报
/// - `versionMismatch`: 实际版本 ≠ 目标版本，已上报 failure
/// - `nil`: 30 天 TTL 过期未上报，保留为审计轨迹
public enum UpgradeOutcome: String, Codable, Equatable {
    case success
    case versionMismatch = "version_mismatch"
}

/// OTA 升级记录。复合主键 `(sn, firmwareId)`。
/// 与 RN `bleStore.upgradeRecords` 1:1 对齐。
public struct UpgradeRecord: Codable, Equatable {
    public let sn: String
    public let firmwareId: String
    public let fromVersion: String
    public let targetVersion: String
    /// 触发 OTA 烧录的时间戳（毫秒，与 RN `Date.now()` 同口径）
    public let triggeredAt: Int64
    public let reported: Bool
    public let reportedAt: Int64?
    public let outcome: UpgradeOutcome?

    public init(
        sn: String,
        firmwareId: String,
        fromVersion: String,
        targetVersion: String,
        triggeredAt: Int64,
        reported: Bool = false,
        reportedAt: Int64? = nil,
        outcome: UpgradeOutcome? = nil
    ) {
        self.sn = sn
        self.firmwareId = firmwareId
        self.fromVersion = fromVersion
        self.targetVersion = targetVersion
        self.triggeredAt = triggeredAt
        self.reported = reported
        self.reportedAt = reportedAt
        self.outcome = outcome
    }
}