import Foundation import Siesta import SwiftUI final class PlaylistsModel: ObservableObject { @Published var playlists = [Playlist]() var accounts = AccountsModel() init(_ playlists: [Playlist] = [Playlist]()) { self.playlists = playlists } var all: [Playlist] { playlists.sorted { $0.title.lowercased() < $1.title.lowercased() } } func find(id: Playlist.ID?) -> Playlist? { if id.isNil { return nil } return playlists.first { $0.id == id! } } var isEmpty: Bool { playlists.isEmpty } func load(force: Bool = false, onSuccess: @escaping () -> Void = {}) { guard accounts.app.supportsUserPlaylists, accounts.signedIn else { playlists = [] return } let request = force ? resource?.load() : resource?.loadIfNeeded() guard !request.isNil else { onSuccess() return } request? .onSuccess { resource in if let playlists: [Playlist] = resource.typedContent() { self.playlists = playlists onSuccess() } } .onFailure { _ in self.playlists = [] } } func addVideo( playlistID: Playlist.ID, videoID: Video.ID, onSuccess: @escaping () -> Void = {}, onFailure: @escaping (RequestError) -> Void = { _ in } ) { let resource = accounts.api.playlistVideos(playlistID) let body = ["videoId": videoID] resource? .request(.post, json: body) .onSuccess { _ in self.load(force: true) onSuccess() } .onFailure(onFailure) } func removeVideo(videoIndexID: String, playlistID: Playlist.ID, onSuccess: @escaping () -> Void = {}) { let resource = accounts.api.playlistVideo(playlistID, videoIndexID) resource?.request(.delete).onSuccess { _ in self.load(force: true) onSuccess() } } private var resource: Resource? { accounts.api.playlists } }