440 lines
14 KiB
Swift
440 lines
14 KiB
Swift
//
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// ChatsTab.swift
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// VolnahubApp
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//
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// Created by cheykrym on 09/06/2025.
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//
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import SwiftUI
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struct ChatsTab: View {
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var currentUserId: String? = nil
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@StateObject private var viewModel = PrivateChatsViewModel()
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var body: some View {
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content
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.background(Color(UIColor.systemBackground))
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.onAppear {
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viewModel.loadInitialChats()
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}
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}
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@ViewBuilder
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private var content: some View {
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if viewModel.isInitialLoading && viewModel.chats.isEmpty {
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loadingState
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} else if let message = viewModel.errorMessage, viewModel.chats.isEmpty {
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errorState(message: message)
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} else if viewModel.chats.isEmpty {
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emptyState
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} else {
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chatList
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}
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}
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private var chatList: some View {
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List {
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if let message = viewModel.errorMessage {
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Section {
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HStack(alignment: .top, spacing: 8) {
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Image(systemName: "exclamationmark.triangle.fill")
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.foregroundColor(.orange)
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Text(message)
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.font(.subheadline)
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.foregroundColor(.orange)
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Spacer(minLength: 0)
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Button(action: { viewModel.refresh() }) {
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Text(NSLocalizedString("Обновить", comment: ""))
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.font(.subheadline)
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}
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}
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.padding(.vertical, 4)
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}
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.listRowInsets(EdgeInsets(top: 8, leading: 16, bottom: 8, trailing: 16))
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}
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ForEach(viewModel.chats) { chat in
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ChatRowView(chat: chat, currentUserId: currentUserId)
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.contentShape(Rectangle())
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.onAppear {
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viewModel.loadMoreIfNeeded(currentItem: chat)
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}
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}
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if viewModel.isLoadingMore {
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loadingMoreRow
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}
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}
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.listStyle(.plain)
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}
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private var loadingState: some View {
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VStack(spacing: 12) {
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ProgressView()
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Text(NSLocalizedString("Загружаем чаты…", comment: ""))
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.font(.subheadline)
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.foregroundColor(.secondary)
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}
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.frame(maxWidth: .infinity, maxHeight: .infinity)
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}
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private func errorState(message: String) -> some View {
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VStack(spacing: 12) {
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Image(systemName: "exclamationmark.bubble")
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.font(.system(size: 48))
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.foregroundColor(.orange)
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Text(message)
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.font(.body)
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.multilineTextAlignment(.center)
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.foregroundColor(.primary)
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Button(action: { viewModel.loadInitialChats(force: true) }) {
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Text(NSLocalizedString("Повторить", comment: ""))
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.font(.headline)
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}
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.buttonStyle(.borderedProminent)
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}
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.padding()
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.frame(maxWidth: .infinity, maxHeight: .infinity)
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}
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private var emptyState: some View {
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VStack(spacing: 12) {
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Image(systemName: "bubble.left")
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.font(.system(size: 48))
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.foregroundColor(.secondary)
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Text(NSLocalizedString("Пока что у вас нет чатов", comment: ""))
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.font(.body)
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.foregroundColor(.secondary)
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Button(action: { viewModel.refresh() }) {
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Text(NSLocalizedString("Обновить", comment: ""))
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}
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.buttonStyle(.bordered)
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}
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.padding()
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.frame(maxWidth: .infinity, maxHeight: .infinity)
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}
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private var loadingMoreRow: some View {
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HStack {
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Spacer()
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ProgressView()
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.padding(.vertical, 12)
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Spacer()
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}
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.listRowSeparator(.hidden)
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}
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}
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private struct ChatRowView: View {
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let chat: PrivateChatListItem
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let currentUserId: String?
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private var title: String {
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switch chat.chatType {
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case .self:
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return NSLocalizedString("Избранные сообщения", comment: "")
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case .privateChat, .unknown:
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if let custom = chat.chatData?.customName, !custom.isEmpty {
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return custom
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}
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if let full = chat.chatData?.fullName, !full.isEmpty {
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return full
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}
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if let login = chat.chatData?.login, !login.isEmpty {
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return "@\(login)"
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}
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return NSLocalizedString("Неизвестный пользователь", comment: "")
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}
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}
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private var officialFullName: String? {
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guard let name = chat.chatData?.fullName?.trimmingCharacters(in: .whitespacesAndNewlines), !name.isEmpty else {
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return nil
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}
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return name
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}
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private var loginDisplay: String? {
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guard let login = chat.chatData?.login?.trimmingCharacters(in: .whitespacesAndNewlines), !login.isEmpty else {
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return nil
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}
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return "@\(login)"
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}
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private var isOfficial: Bool {
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officialFullName != nil
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}
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private var avatarBackgroundColor: Color {
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isOfficial ? Color.accentColor.opacity(0.85) : Color.accentColor.opacity(0.15)
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}
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private var avatarTextColor: Color {
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isOfficial ? Color.white : Color.accentColor
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}
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private var messagePreview: String {
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guard let message = chat.lastMessage else {
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return NSLocalizedString("Нет сообщений", comment: "")
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}
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let body = messageBody(for: message)
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guard let prefix = authorPrefix(for: message) else {
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return body
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}
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return body.isEmpty ? prefix : "\(body)"
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// return body.isEmpty ? prefix : "\(prefix): \(body)"
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}
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private func messageBody(for message: MessageItem) -> String {
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if let content = trimmed(message.content), !content.isEmpty {
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return content
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}
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if message.mediaLink != nil {
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return NSLocalizedString("Вложение", comment: "")
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}
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return NSLocalizedString("Сообщение", comment: "")
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}
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private func authorPrefix(for message: MessageItem) -> String? {
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let isCurrentUser = currentUserId.map { $0 == message.senderId } ?? false
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if isCurrentUser {
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return NSLocalizedString("Вы", comment: "")
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}
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let profile = message.senderData ?? chat.chatData
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return displayName(for: profile)
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}
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private func displayName(for profile: ChatProfile?) -> String? {
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guard let profile else { return nil }
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let login = trimmed(profile.login)
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let customName = trimmed(profile.customName)
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let fullName = trimmed(profile.fullName)
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let isOfficialProfile = fullName != nil
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if isOfficialProfile, let login {
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if let customName {
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return "@\(login) (\(customName))"
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}
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return "@\(login)"
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}
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if let customName {
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return customName
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}
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if let login {
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return "@\(login)"
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}
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return fullName
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}
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private func trimmed(_ string: String?) -> String? {
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guard let string = string?.trimmingCharacters(in: .whitespacesAndNewlines), !string.isEmpty else {
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return nil
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}
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return string
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}
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private var timestamp: String? {
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let date = chat.lastMessage?.createdAt ?? chat.createdAt
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guard let date else { return nil }
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return ChatRowView.formattedTimestamp(for: date)
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}
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private var initial: String {
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let sourceName: String
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if let full = officialFullName {
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sourceName = full
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} else if let custom = chat.chatData?.customName, !custom.trimmingCharacters(in: .whitespacesAndNewlines).isEmpty {
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sourceName = custom
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} else if let login = chat.chatData?.login?.trimmingCharacters(in: .whitespacesAndNewlines), !login.isEmpty {
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sourceName = login
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} else {
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sourceName = NSLocalizedString("Неизвестный пользователь", comment: "")
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}
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if let character = sourceName.first(where: { !$0.isWhitespace && $0 != "@" }) {
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return String(character).uppercased()
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}
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return "?"
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}
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private var subtitleColor: Color {
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chat.unreadCount > 0 ? .primary : .secondary
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}
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private var shouldShowReadStatus: Bool {
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guard let message = chat.lastMessage else { return false }
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let isCurrentUser = currentUserId.map { $0 == message.senderId } ?? false
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return isCurrentUser
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}
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private var readStatusIconName: String {
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guard let message = chat.lastMessage else { return "" }
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return message.isViewed == true ? "checkmark.circle.fill" : "checkmark.circle"
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}
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private var readStatusColor: Color {
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guard let message = chat.lastMessage else { return .secondary }
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return message.isViewed == true ? Color.accentColor : Color.secondary
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}
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var body: some View {
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HStack(spacing: 12) {
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Circle()
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.fill(avatarBackgroundColor)
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.frame(width: 44, height: 44)
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.overlay(
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Text(initial)
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.font(.headline)
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.foregroundColor(avatarTextColor)
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)
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VStack(alignment: .leading, spacing: 4) {
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if let officialName = officialFullName {
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HStack(spacing: 6) {
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Text(officialName)
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.fontWeight(.semibold)
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.foregroundColor(.primary)
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.lineLimit(1)
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.truncationMode(.tail)
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Image(systemName: "checkmark.seal.fill")
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.foregroundColor(Color.accentColor)
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.font(.caption)
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}
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// if let login = loginDisplay {
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// Text(login)
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// .font(.footnote)
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// .foregroundColor(.secondary)
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// .lineLimit(1)
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// .truncationMode(.tail)
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// }
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} else {
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Text(title)
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.fontWeight(chat.unreadCount > 0 ? .semibold : .regular)
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.foregroundColor(.primary)
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.lineLimit(1)
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.truncationMode(.tail)
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}
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Text(messagePreview)
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.font(.subheadline)
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.foregroundColor(subtitleColor)
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.lineLimit(2)
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.truncationMode(.tail)
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}
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.frame(maxWidth: .infinity, alignment: .leading)
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Spacer()
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VStack(alignment: .trailing, spacing: 6) {
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if let timestamp {
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HStack(spacing: 4) {
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if shouldShowReadStatus {
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Image(systemName: readStatusIconName)
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.foregroundColor(readStatusColor)
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.font(.caption2)
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}
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Text(timestamp)
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.font(.caption)
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.foregroundColor(.secondary)
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}
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}
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if chat.unreadCount > 0 {
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Text("\(chat.unreadCount)")
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.font(.caption2.bold())
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.foregroundColor(.white)
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.padding(.horizontal, 8)
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.padding(.vertical, 4)
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.background(
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Capsule().fill(Color.accentColor)
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)
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}
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}
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}
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.padding(.vertical, 8)
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}
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private static func formattedTimestamp(for date: Date) -> String {
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let calendar = Calendar.current
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let locale = Locale.current
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let now = Date()
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let startOfNow = calendar.startOfDay(for: now)
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let startOfDate = calendar.startOfDay(for: date)
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let diff = calendar.dateComponents([.day], from: startOfDate, to: startOfNow).day ?? 0
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if diff <= 0 {
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return timeString(for: date, locale: locale)
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}
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if diff == 1 {
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return locale.identifier.lowercased().hasPrefix("ru") ? "Вчера" : "Yesterday"
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}
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if diff < 7 {
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return weekdayFormatter(for: locale).string(from: date)
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}
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if diff < 365 {
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return monthDayFormatter(for: locale).string(from: date)
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}
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return fullDateFormatter(for: locale).string(from: date)
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}
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private static func timeString(for date: Date, locale: Locale) -> String {
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let timeFormat = DateFormatter.dateFormat(fromTemplate: "j", options: 0, locale: locale) ?? ""
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let is12Hour = timeFormat.contains("a") || timeFormat.contains("h") || timeFormat.contains("K")
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let formatter = DateFormatter()
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formatter.locale = locale
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if is12Hour {
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formatter.dateFormat = DateFormatter.dateFormat(fromTemplate: "h:mm a", options: 0, locale: locale) ?? "h:mm a"
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} else {
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formatter.dateFormat = "HH:mm"
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}
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return formatter.string(from: date)
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}
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private static func weekdayFormatter(for locale: Locale) -> DateFormatter {
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let formatter = DateFormatter()
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formatter.locale = locale
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formatter.setLocalizedDateFormatFromTemplate("EEE")
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return formatter
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}
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private static func monthDayFormatter(for locale: Locale) -> DateFormatter {
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let formatter = DateFormatter()
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formatter.locale = locale
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formatter.setLocalizedDateFormatFromTemplate("MMM d")
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return formatter
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}
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private static func fullDateFormatter(for locale: Locale) -> DateFormatter {
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let formatter = DateFormatter()
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formatter.locale = locale
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formatter.dateFormat = "dd.MM.yy"
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return formatter
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}
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}
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struct ChatsTab_Previews: PreviewProvider {
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static var previews: some View {
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ChatsTab()
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.environmentObject(ThemeManager())
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}
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}
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