import Foundation

/// Was Flaro über die Leitung schickt.
///
/// Ein Spiegel der `Contracts.cs` auf der Serverseite, und nur das: hier wird
/// nichts gerechnet und nichts gedeutet. Die Übersetzung in die neutralen
/// Typen steht in `FlaroBackend+Mapping`.
///
/// **Die Felder heissen wie dort.** Keine `CodingKeys`, keine Umbenennung:
/// ASP.NET Core schreibt `camelCase`, Swift liest `camelCase`, und jede
/// Abweichung wäre eine Stelle, an der beim nächsten Serverfeld jemand
/// nachziehen müsste.
enum Wire {
    struct Page<T: Decodable & Sendable>: Decodable, Sendable {
        let items: [T]
        let total: Int
    }

    struct SystemInfo: Decodable, Sendable {
        let version: String?
        let serverName: String?
        let needsSetup: Bool
        let attributions: [Attribution]?
    }

    struct Attribution: Decodable, Sendable {
        let text: String
        let logoUrl: String
        let url: String
    }

    struct LoginResponse: Decodable, Sendable {
        let token: String
        let user: User
    }

    struct User: Decodable, Sendable {
        let id: String
        let userName: String
        let isAdministrator: Bool
    }

    struct Library: Decodable, Sendable {
        let id: String
        let name: String
        let kind: String
        let path: String
    }

    struct Stream: Decodable, Sendable {
        let index: Int
        let kind: String
        let codec: String?
        let language: String?
        let title: String?
        let isDefault: Bool
        let isForced: Bool
        let channels: Int?
        let width: Int?
        let height: Int?
    }

    struct File: Decodable, Sendable {
        let id: String
        let fileName: String
        let sizeBytes: Int64
        let container: String?
        let durationSeconds: Double?
        let streams: [Stream]
    }

    struct ItemState: Decodable, Sendable {
        let positionSeconds: Double
        let runtimeSeconds: Double?
        let watched: Bool
        let playCount: Int
        let favourite: Bool
        let rating: Int?
        let dismissed: Bool
        let lastPlayedAt: Date?
    }

    struct Movie: Decodable, Sendable {
        let id: String
        let title: String
        let year: Int?
        let overview: String?
        let posterImage: String?
        let backdropImage: String?
        let files: [File]
        let state: ItemState?
    }

    struct Series: Decodable, Sendable {
        let id: String
        let title: String
        let year: Int?
        let overview: String?
        let posterImage: String?
        let backdropImage: String?
        let episodeCount: Int
        let seasons: [Int]
        let unwatchedCount: Int
    }

    struct Episode: Decodable, Sendable {
        let id: String
        let season: Int
        let episode: Int
        let title: String?
        let overview: String?
        let stillImage: String?
        let files: [File]
        let state: ItemState?
    }

    /// Eine Kachel aus „Weiterschauen" oder „Nächste Folge".
    struct Started: Decodable, Sendable {
        let id: String
        let kind: String
        let title: String
        let subTitle: String?
        let season: Int?
        let episode: Int?
        let year: Int?
        let posterImage: String?
        let backdropImage: String?
        let state: ItemState
    }

    struct CodeResponse: Decodable, Sendable {
        let code: String
        let handle: String
        let expiresAt: Date
    }

    /// `state` ist „pending", „approved" oder „expired".
    struct CodeState: Decodable, Sendable {
        let state: String
        let login: LoginResponse?
    }

    struct CodeRequest: Encodable, Sendable {
        let deviceName: String
        let deviceId: String
    }

    struct Delivery: Decodable, Sendable {
        let method: String
        let reasons: [String]
        let audioToEncode: [Int]
        let subtitlesDropped: [Int]
        let packageState: String
        let progress: Double
        let error: String?
    }

    // --- Was hinausgeht --------------------------------------------------

    struct LoginRequest: Encodable, Sendable {
        let userName: String
        let password: String
        let deviceName: String
        let deviceId: String
    }

    struct ProgressRequest: Encodable, Sendable {
        let positionSeconds: Double
        let runtimeSeconds: Double?
    }

    struct WatchedRequest: Encodable, Sendable { let watched: Bool }
    struct FavouriteRequest: Encodable, Sendable { let favourite: Bool }
    struct RatingRequest: Encodable, Sendable { let rating: Int? }
}