111 lines
3.8 KiB
Swift
111 lines
3.8 KiB
Swift
import SwiftUI
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/// The conversation screen for a revealed connection.
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///
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/// This is where two people who met in the real world actually talk. The UI
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/// is deliberately calm and human — no engagement-baiting, no streaks, no
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/// algorithms. Just a conversation between two people who chose to meet.
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struct ChatView: View {
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@EnvironmentObject private var vm: ChatViewModel
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@EnvironmentObject private var revealFlow: RevealFlow
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@State private var input = ""
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let connection: Connection
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var body: some View {
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VStack(spacing: 0) {
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// Header
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HStack(spacing: 12) {
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Circle()
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.fill(Color.green.opacity(0.2))
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.frame(width: 40, height: 40)
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.overlay(Text(String(connection.displayName.prefix(1))))
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VStack(alignment: .leading, spacing: 2) {
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Text(connection.displayName)
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.font(.headline)
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Text("Met in person · \(connection.createdAt, format: .dateTime.month().day())")
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.font(.caption)
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.foregroundColor(.secondary)
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}
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Spacer()
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Image(systemName: "lock.fill")
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.font(.caption)
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.foregroundColor(.green)
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.accessibilityLabel("End-to-end encrypted")
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}
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.padding()
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.background(Color(.secondarySystemBackground))
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Divider()
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// Messages
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ScrollViewReader { proxy in
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ScrollView {
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LazyVStack(spacing: 12) {
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ForEach(vm.messages) { message in
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MessageBubble(message: message, isMine: message.senderID == "me")
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}
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}
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.padding()
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}
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.onChange(of: vm.messages.count) { _, _ in
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if let last = vm.messages.last {
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withAnimation {
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proxy.scrollTo(last.id, anchor: .bottom)
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}
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}
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}
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}
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// Input
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HStack(spacing: 12) {
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TextField("Say hello…", text: $input, axis: .vertical)
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.lineLimit(1...4)
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.padding(10)
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.background(Color(.secondarySystemBackground))
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.clipShape(RoundedRectangle(cornerRadius: 18))
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Button {
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vm.draft = input
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input = ""
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Task { await vm.send() }
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} label: {
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Image(systemName: "arrow.up.circle.fill")
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.font(.system(size: 28))
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}
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.disabled(input.trimmingCharacters(in: .whitespaces).isEmpty)
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}
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.padding()
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}
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.navigationTitle("")
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.navigationBarTitleDisplayMode(.inline)
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.onAppear {
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// Use the E2E session key established at reveal time.
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vm.start(with: connection, sessionKey: revealFlow.currentSessionKey())
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}
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}
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}
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/// A single message bubble.
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struct MessageBubble: View {
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@EnvironmentObject private var vm: ChatViewModel
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let message: ChatMessage
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let isMine: Bool
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var body: some View {
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HStack {
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if isMine { Spacer() }
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Text(vm.text(for: message))
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.padding(.horizontal, 14)
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.padding(.vertical, 10)
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.background(
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RoundedRectangle(cornerRadius: 18)
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.fill(isMine ? Color.green : Color(.secondarySystemBackground))
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)
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.foregroundColor(isMine ? .white : .primary)
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if !isMine { Spacer() }
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}
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}
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}
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