initial commit: Proximity iOS app proposal, full Swift code scaffold, reference backend, testing docs, generated Xcode project

2026-08-12 00:22:01 +00:00
commit 9d1b0f8dd9
52 changed files with 6271 additions and 0 deletions
--- a/Proximity/Views/ChatView.swift
+++ b/Proximity/Views/ChatView.swift
@@ -0,0 +1,110 @@
+import SwiftUI
+
+/// The conversation screen for a revealed connection.
+///
+/// This is where two people who met in the real world actually talk. The UI
+/// is deliberately calm and human — no engagement-baiting, no streaks, no
+/// algorithms. Just a conversation between two people who chose to meet.
+struct ChatView: View {
+    @EnvironmentObject private var vm: ChatViewModel
+    @EnvironmentObject private var revealFlow: RevealFlow
+    @State private var input = ""
+
+    let connection: Connection
+
+    var body: some View {
+        VStack(spacing: 0) {
+            // Header
+            HStack(spacing: 12) {
+                Circle()
+                    .fill(Color.green.opacity(0.2))
+                    .frame(width: 40, height: 40)
+                    .overlay(Text(String(connection.displayName.prefix(1))))
+
+                VStack(alignment: .leading, spacing: 2) {
+                    Text(connection.displayName)
+                        .font(.headline)
+                    Text("Met in person · \(connection.createdAt, format: .dateTime.month().day())")
+                        .font(.caption)
+                        .foregroundColor(.secondary)
+                }
+                Spacer()
+                Image(systemName: "lock.fill")
+                    .font(.caption)
+                    .foregroundColor(.green)
+                    .accessibilityLabel("End-to-end encrypted")
+            }
+            .padding()
+            .background(Color(.secondarySystemBackground))
+
+            Divider()
+
+            // Messages
+            ScrollViewReader { proxy in
+                ScrollView {
+                    LazyVStack(spacing: 12) {
+                        ForEach(vm.messages) { message in
+                            MessageBubble(message: message, isMine: message.senderID == "me")
+                        }
+                    }
+                    .padding()
+                }
+                .onChange(of: vm.messages.count) { _, _ in
+                    if let last = vm.messages.last {
+                        withAnimation {
+                            proxy.scrollTo(last.id, anchor: .bottom)
+                        }
+                    }
+                }
+            }
+
+            // Input
+            HStack(spacing: 12) {
+                TextField("Say hello…", text: $input, axis: .vertical)
+                    .lineLimit(1...4)
+                    .padding(10)
+                    .background(Color(.secondarySystemBackground))
+                    .clipShape(RoundedRectangle(cornerRadius: 18))
+
+                Button {
+                    vm.draft = input
+                    input = ""
+                    Task { await vm.send() }
+                } label: {
+                    Image(systemName: "arrow.up.circle.fill")
+                        .font(.system(size: 28))
+                }
+                .disabled(input.trimmingCharacters(in: .whitespaces).isEmpty)
+            }
+            .padding()
+        }
+        .navigationTitle("")
+        .navigationBarTitleDisplayMode(.inline)
+        .onAppear {
+            // Use the E2E session key established at reveal time.
+            vm.start(with: connection, sessionKey: revealFlow.currentSessionKey())
+        }
+    }
+}
+
+/// A single message bubble.
+struct MessageBubble: View {
+    @EnvironmentObject private var vm: ChatViewModel
+    let message: ChatMessage
+    let isMine: Bool
+
+    var body: some View {
+        HStack {
+            if isMine { Spacer() }
+            Text(vm.text(for: message))
+                .padding(.horizontal, 14)
+                .padding(.vertical, 10)
+                .background(
+                    RoundedRectangle(cornerRadius: 18)
+                        .fill(isMine ? Color.green : Color(.secondarySystemBackground))
+                )
+                .foregroundColor(isMine ? .white : .primary)
+            if !isMine { Spacer() }
+        }
+    }
+}