import Foundation

/// Body für `POST /api/v1/marketplace/authors/me` — Upsert des
/// Author-Profils. Pflicht-Schritt vor dem ersten Deck-Init im
/// Marketplace.
struct AuthorUpsertBody: Encodable {
    let slug: String
    let displayName: String
    let bio: String?
    let avatarUrl: String?
    let pseudonym: Bool?

    enum CodingKeys: String, CodingKey {
        case slug
        case displayName
        case bio
        case avatarUrl
        case pseudonym
    }
}

/// Body für `POST /api/v1/marketplace/decks` — Deck-Init.
/// Erstellt nur die Metadaten; Karten kommen mit der ersten `publish`.
struct MarketplaceDeckInitBody: Encodable {
    let slug: String
    let title: String
    let description: String?
    let language: String?
    let license: String?
    let priceCredits: Int?
    let category: DeckCategory?

    enum CodingKeys: String, CodingKey {
        case slug
        case title
        case description
        case language
        case license
        case priceCredits
        case category
    }
}

/// Eine Card-Payload-Zeile für `POST /:slug/publish`. Andere Type-
/// Namen als bei privaten Karten — der Server nutzt `'type-in'` statt
/// `'typing'`.
struct MarketplacePublishCard: Encodable {
    let type: String
    let fields: [String: String]
}

/// Body für `POST /api/v1/marketplace/decks/:slug/publish`.
struct MarketplacePublishBody: Encodable {
    let semver: String
    let changelog: String?
    let cards: [MarketplacePublishCard]
}

/// Antwort von `POST /:slug/publish`. Enthält das aktualisierte Deck,
/// die neue Version und das AI-Moderation-Verdict.
struct MarketplacePublishResponse: Decodable {
    let deck: PublicDeck
    let version: PublicDeckVersion
    let moderation: ModerationResult

    struct ModerationResult: Decodable {
        let verdict: String
        let categories: [String]?
        let model: String?
    }
}

/// Liste von Wordeck-Marketplace-Lizenzen. Server akzeptiert beliebige
/// Strings ≤ 60 Zeichen — wir bieten die kanonischen vier.
enum MarketplaceLicense: String, CaseIterable {
    case personalUse = "Wordeck-Personal-Use-1.0"
    case shareAlike = "Wordeck-Share-Alike-1.0"
    case attribution = "Wordeck-Attribution-1.0"
    case proOnly = "Wordeck-Pro-Only-1.0"

    var label: String {
        switch self {
        case .personalUse: "Persönlicher Gebrauch"
        case .shareAlike: "Share-Alike (CC-BY-SA-Stil)"
        case .attribution: "Namensnennung (CC-BY-Stil)"
        case .proOnly: "Nur für Wordeck-Pro (Bezahl-Decks)"
        }
    }
}

/// Konvertiert eine private `Card` in eine `MarketplacePublishCard`
/// mit dem korrekten Marketplace-Type und Feld-Mapping.
enum MarketplaceCardConverter {
    static func convert(_ card: Card) -> MarketplacePublishCard? {
        switch card.type {
        case .basic, .basicReverse, .cloze, .multipleChoice:
            return MarketplacePublishCard(type: card.type.rawValue, fields: card.fields)
        case .typing:
            let front = card.fields["front"] ?? ""
            let answer = card.fields["answer"] ?? ""
            return MarketplacePublishCard(
                type: "type-in",
                fields: ["question": front, "expected": answer]
            )
        }
    }
}