//
//  TankCatalogEnvironment.swift
//  GasTankAR
//
//  Created by Dennis Nemec on 14.09.26.
//

import SwiftUI

private struct TankCatalogKey: EnvironmentKey {
    static let defaultValue: any TankCatalogProviding = TankCatalog.shared
}

extension EnvironmentValues {
    /// Der in der View-Hierarchie verfügbare Tank-Katalog. Standard: der aus dem
    /// Bundle geladene `TankCatalog.shared`; in Tests/Previews überschreibbar.
    var tankCatalog: any TankCatalogProviding {
        get { self[TankCatalogKey.self] }
        set { self[TankCatalogKey.self] = newValue }
    }
}

extension View {
    /// Injiziert einen Tank-Katalog in die View-Hierarchie.
    func tankCatalog(_ catalog: any TankCatalogProviding) -> some View {
        environment(\.tankCatalog, catalog)
    }
}