106 lines
4.1 KiB
Swift
106 lines
4.1 KiB
Swift
//
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// https://mczachurski.dev
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// Copyright © 2022 Marcin Czachurski and the repository contributors.
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// Licensed under the MIT License.
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//
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import SwiftUI
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struct HomeFeedView: View {
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@Environment(\.managedObjectContext) private var viewContext
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@EnvironmentObject var applicationState: ApplicationState
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@EnvironmentObject var routerPath: RouterPath
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@State private var firstLoadFinished = false
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@State private var allItemsBottomLoaded = false
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private static let initialColumns = 1
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@State private var gridColumns = Array(repeating: GridItem(.flexible()), count: initialColumns)
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@FetchRequest var dbStatuses: FetchedResults<StatusData>
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init(accountId: String) {
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_dbStatuses = FetchRequest<StatusData>(
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sortDescriptors: [SortDescriptor(\.id, order: .reverse)],
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predicate: NSPredicate(format: "pixelfedAccount.id = %@", accountId))
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}
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var body: some View {
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ScrollView {
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LazyVGrid(columns: gridColumns) {
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ForEach(dbStatuses, id: \.self) { item in
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NavigationLink(value: RouteurDestinations.status(
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id: item.rebloggedStatusId ?? item.id,
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blurhash: item.attachments().first?.blurhash,
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highestImageUrl: item.attachments().getHighestImage()?.url,
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metaImageWidth: item.attachments().first?.metaImageWidth,
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metaImageHeight: item.attachments().first?.metaImageHeight)
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) {
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ImageRow(statusData: item)
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}
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.buttonStyle(EmptyButtonStyle())
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}
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if allItemsBottomLoaded == false && firstLoadFinished == true {
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LoadingIndicator()
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.task {
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do {
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if let accountData = self.applicationState.accountData {
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let newStatusesCount = try await HomeTimelineService.shared.onBottomOfList(for: accountData)
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if newStatusesCount == 0 {
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allItemsBottomLoaded = true
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}
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}
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} catch {
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ErrorService.shared.handle(error, message: "Error during download statuses from server.", showToastr: !Task.isCancelled)
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}
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}
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}
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}
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}
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.overlay(alignment: .center) {
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if firstLoadFinished == false {
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LoadingIndicator()
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} else {
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if self.dbStatuses.isEmpty {
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VStack {
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Image(systemName: "photo.on.rectangle.angled")
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.font(.largeTitle)
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.padding(.bottom, 4)
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Text("Unfortunately, there are no photos here.")
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.font(.title3)
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}.foregroundColor(.lightGrayColor)
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}
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}
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}
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.refreshable {
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do {
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if let accountData = self.applicationState.accountData {
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_ = try await HomeTimelineService.shared.onTopOfList(for: accountData)
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}
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} catch {
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print("Error", error)
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}
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}
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.task {
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do {
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defer {
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Task { @MainActor in
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self.firstLoadFinished = true
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}
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}
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if self.dbStatuses.isEmpty == false {
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return
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}
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if let accountData = self.applicationState.accountData {
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_ = try await HomeTimelineService.shared.onTopOfList(for: accountData)
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}
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} catch {
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ErrorService.shared.handle(error, message: "Error during download statuses from server.", showToastr: !Task.isCancelled)
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}
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}
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}
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}
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