Add the ability to send messages

Kordophone/Shared/ConversationView.swift

@@ -5,8 +5,12 @@ import KordophoneKit
 struct ConversationView : View {
     var conversation: Conversation
     var messages: [Message]
+    var sendAction: (String) -> Void
     
-    var body: some View {
+    @State private var inputText = ""
+    
+    @ViewBuilder
+    private var transcript: some View {
         ScrollViewReader { proxy in
             ScrollView {
                 LazyVStack {
@@ -22,12 +26,33 @@ struct ConversationView : View {
                     }
                 }
             }
-            .navigationTitle(conversation.effectiveDisplayName)
             .onChange(of: messages) { newValue in
                 proxy.scrollTo(newValue.last, anchor: .bottom)
             }
         }
     }
+    
+    @ViewBuilder
+    private var inputView: some View {
+        TextField.init(text: $inputText) {
+            Text("Message")
+        }
+        .padding()
+        .onSubmit {
+            if inputText.count > 0 {
+                sendAction(inputText)
+                inputText = ""
+            }
+        }
+    }
+    
+    var body: some View {
+        VStack(spacing: 0) {
+            transcript
+            inputView
+        }
+        .navigationTitle(conversation.effectiveDisplayName)
+    }
 }
 
 struct ConversationViewWrapper : View {
@@ -36,19 +61,23 @@ struct ConversationViewWrapper : View {
     @EnvironmentObject private var connection: Connection
     
     private func refresh() {
-        messages.removeAll()
         Task {
             self.messages = await connection.messages(in: conversation) ?? .init()
         }
     }
     
     var body: some View {
-        ConversationView(conversation: conversation, messages: messages)
-            .onChange(of: conversation, perform: { newValue in
-                refresh()
-            })
-            .onAppear {
-                refresh()
+        ConversationView(conversation: conversation, messages: messages) { sent in
+            Task {
+                await connection.send(text: sent, in: conversation)
             }
+            refresh()
+        }
+        .onChange(of: conversation, perform: { newValue in
+            refresh()
+        })
+        .onAppear {
+            refresh()
+        }
     }
 }

KordophoneKit/Sources/KordophoneKit/Connection.swift

@@ -9,8 +9,10 @@ public class Connection {
     
     public init() { }
     
-    private func authenticatedGET(service: String,
-                                  queryItems: [String : String] = .init())
+    private func authenticatedRequest(service: String,
+                                      method: String = "GET",
+                                      body: Data? = nil,
+                                      queryItems: [String : String] = .init())
     async -> Data? {
         guard let token = token else {
             return nil
@@ -24,7 +26,8 @@ public class Connection {
         let finalURL = urlComponents.url!
         
         var request = URLRequest(url: finalURL)
-        request.httpMethod = "GET"
+        request.httpMethod = method
+        request.httpBody = body
         request.setValue("Bearer: \(token)", forHTTPHeaderField: "Authorization")
         
         return try? await URLSession.shared.data(for: request).0
@@ -55,7 +58,7 @@ public class Connection {
     }
     
     public func conversations() async -> [Conversation]?  {
-        if let data = await authenticatedGET(service: "conversations") {
+        if let data = await authenticatedRequest(service: "conversations") {
             if let conversations = try? JSONDecoder().decode([RawConversation].self, from: data) {
                 return conversations.map {
                     $0.conversation
@@ -67,7 +70,7 @@ public class Connection {
     }
     
     public func messages(in conversation: Conversation) async -> [Message]? {
-        if let data = await authenticatedGET(service: "messages", queryItems: ["guid" : conversation.guid]) {
+        if let data = await authenticatedRequest(service: "messages", queryItems: ["guid" : conversation.guid]) {
             if let messages = try? JSONDecoder().decode([RawMessage].self, from: data) {
                 return messages.map {
                     $0.message
@@ -77,6 +80,17 @@ public class Connection {
         
         return nil
     }
+    
+    public func send(text: String, in conversation: Conversation) async {
+        var body = [String : String]()
+        body["guid"] = conversation.guid
+        body["body"] = text
+        let bodyData = try! JSONEncoder().encode(body)
+        
+        let _ = await authenticatedRequest(service: "sendMessage",
+                                           method: "POST",
+                                           body: bodyData)
+    }
 }
 
 extension Connection {