yattee/Shared/Views/SubscriptionsView.swift

import Siesta
import SwiftUI

struct SubscriptionsView: View {
    @StateObject private var store = Store<[Video]>()

    @EnvironmentObject<InvidiousAPI> private var api

    var feed: Resource {
        api.feed
    }

    var body: some View {
        SignInRequiredView(title: "Subscriptions") {
            VideosCellsVertical(videos: store.collection)
                .onAppear {
                    loadResources()
                }
                .onChange(of: api.account) { _ in
                    loadResources(force: true)
                }
                .onChange(of: feed) { _ in
                    loadResources(force: true)
                }
        }
        .refreshable {
            loadResources(force: true)
        }
    }

    fileprivate func loadResources(force: Bool = false) {
        feed.addObserver(store)

        if let request = force ? api.home.load() : api.home.loadIfNeeded() {
            request.onSuccess { _ in
                loadFeed(force: force)
            }
        } else {
            loadFeed(force: force)
        }
    }

    fileprivate func loadFeed(force: Bool = false) {
        _ = force ? feed.load() : feed.loadIfNeeded()
    }
}