furumi_macos/furumi_macos/PlaylistsViewModel.swift

//
//  PlaylistsViewModel.swift
//  furumi_macos
//

import Foundation
import Observation

@MainActor
@Observable
final class PlaylistsViewModel {
    private(set) var playlists: [PlaylistCard] = []
    private(set) var isLoading = false
    private(set) var error: String?
    private var service: CatalogService

    init(service: CatalogService) { self.service = service }

    func reset(service: CatalogService) {
        self.service = service
        playlists = []
        isLoading = false
        error = nil
    }

    func load() async {
        guard !isLoading else { return }
        isLoading = true
        error = nil
        defer { isLoading = false }
        do {
            playlists = try await service.playlists()
        } catch {
            self.error = error.localizedDescription
        }
    }
}