Iplements and integrates GameManager and UIController.

Assets/_Client/Scripts/API.meta

@@ -0,0 +1,8 @@
+fileFormatVersion: 2
+guid: 2ef7622eea79d2543b4f52a08c14c5f7
+folderAsset: yes
+DefaultImporter:
+  externalObjects: {}
+  userData: 
+  assetBundleName: 
+  assetBundleVariant: 

Assets/_Client/Scripts/API/ApiClientManager.cs

@@ -1,3 +1,5 @@
+using System;
+using System.Collections;
 using System.Linq;
 
 using UnityEngine;
@@ -51,6 +53,7 @@ namespace PPGIA.X540.Project3.API
         [Header("API State Information")]
         [SerializeField]
         private Session _session;
+        public bool IsSessionActive => _session != null;
         #endregion ------------------------------------------------------------
 
         #region -- Other Properties & Methods ---------------------------------
@@ -88,7 +91,7 @@ namespace PPGIA.X540.Project3.API
         }
 
         [ContextMenu("Session/Initiate Session")]
-        public void InitiateSession()
+        public void InitiateSession(Action sessionStartedCallback = null)
         {
             StopAllCoroutines();
 
@@ -100,15 +103,18 @@ namespace PPGIA.X540.Project3.API
                 var body = request.downloadHandler?.text ?? string.Empty;
                 var session = JsonUtility.FromJson<Session>(body);
                 _session = session;
+
+                sessionStartedCallback?.Invoke();
             }));
         }
 
         [ContextMenu("Session/Close Session")]
-        public void CloseSession()
+        public void CloseSession(Action sessionClosedCallback = null)
         {
             if (_session == null)
             {
                 Debug.LogWarning("No active session to close.");
+                sessionClosedCallback?.Invoke();
                 return;
             }
 
@@ -121,11 +127,14 @@ namespace PPGIA.X540.Project3.API
             {
                 Debug.Log("Session closed successfully.");
                 _session = null;
+                sessionClosedCallback?.Invoke();
             }));
         }
 
         [ContextMenu("Chat/Send Message")]
-        public void SendChatMessage()
+        public void SendChatMessage(string message = null,
+            Action<string> responseReceivedCallback = null,
+            Action speechFinishedCallback = null)
         {
             // Ensure there is an active session
             if (_session == null)
@@ -134,6 +143,8 @@ namespace PPGIA.X540.Project3.API
                 return;
             }
 
+            if (message != null) _query = message;
+
             StopAllCoroutines();
 
             // Build the endpoint URL and payload
@@ -146,6 +157,10 @@ namespace PPGIA.X540.Project3.API
             {
                 var body = request.downloadHandler?.text ?? string.Empty;
                 var response = ApiModel.FromJson<ChatServiceResponse>(body);
+
+                var chatResponse = response?.Message;
+                responseReceivedCallback?.Invoke(chatResponse);
+
                 var audioUrl = response?.AudioUrl;
                 if (string.IsNullOrEmpty(audioUrl))
                 {
@@ -162,10 +177,25 @@ namespace PPGIA.X540.Project3.API
                         Debug.LogError("AudioClip is null after download.");
                         return;
                     }
+                    StartCoroutine(PlayAudioAndNotifyCoroutine(
+                        audioClip, speechFinishedCallback));
+                }));
+            }));
+        }
 
-                    _audioSource?.PlayOneShot(audioClip);
+        private IEnumerator PlayAudioAndNotifyCoroutine(
-                }));
+            AudioClip audioClip, Action onComplete)
-            }));
+        {
+            if (_audioSource == null || audioClip == null)
+            {
+                onComplete?.Invoke();
+                yield break;
+            }
+
+            _audioSource.PlayOneShot(audioClip);
+            yield return new WaitForSeconds(audioClip.length);
+
+            onComplete?.Invoke();
         }
         #endregion -- API Calls ------------------------------------------------
 

Assets/_Client/Scripts/Core.meta

@@ -0,0 +1,8 @@
+fileFormatVersion: 2
+guid: 8a2376aa5b49eeb41aac7df48220349f
+folderAsset: yes
+DefaultImporter:
+  externalObjects: {}
+  userData: 
+  assetBundleName: 
+  assetBundleVariant: 

Assets/_Client/Scripts/Core/AppManager.cs

@@ -0,0 +1,72 @@
+using UnityEngine;
+
+using PPGIA.X540.Project3.API;
+
+
+namespace PPGIA.X540.Project3
+{
+    public class AppManager : MonoBehaviour
+    {
+        [Header("References")]
+        [SerializeField]
+        private UIController _uiController;
+
+        [SerializeField]
+        private ApiClientManager _apiManager;
+
+        private void Awake()
+        {
+            if (_uiController == null)
+                _uiController = GetComponent<UIController>();
+            if (_apiManager == null)
+                _apiManager = GetComponent<ApiClientManager>();
+        }
+
+        void Start()
+        {
+            _apiManager.CloseSession(
+                () => _uiController.SessionActive = _apiManager.IsSessionActive);
+        }
+
+        private void OnEnable()
+        {
+            _uiController.OnSessionButtonClicked += HandleSessionButtonClicked;
+            _uiController.OnSendChatButtonClicked += HandleSendChatButtonClicked;
+        }
+
+        private void OnDisable()
+        {
+            _uiController.OnSessionButtonClicked -= HandleSessionButtonClicked;
+            _uiController.OnSendChatButtonClicked -= HandleSendChatButtonClicked;
+        }
+
+        private void HandleSessionButtonClicked()
+        {
+            if (!_apiManager.IsSessionActive)
+            {
+                _apiManager.InitiateSession(
+                    () => _uiController.SessionActive = _apiManager.IsSessionActive);
+            }
+            else
+            {
+                _apiManager.CloseSession(
+                    () => _uiController.SessionActive = _apiManager.IsSessionActive
+                );
+            }
+        }
+
+        private void HandleSendChatButtonClicked(string message)
+        {
+            _apiManager.SendChatMessage(message, 
+                (responseMessage) => 
+            {
+                _uiController.ChatOutput += $"User: {message}\n";
+                _uiController.ChatOutput += $"Bot: {responseMessage}\n";
+            },
+                () =>
+            {
+                // Speech finished callback (optional)
+            });
+        }
+    }
+}

Assets/_Client/Scripts/Core/AppManager.cs.meta

@@ -0,0 +1,2 @@
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+guid: 7a1ca38af0a96524893a60d620fa5791

Assets/_Client/Scripts/UI.meta

@@ -0,0 +1,8 @@
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+DefaultImporter:
+  externalObjects: {}
+  userData: 
+  assetBundleName: 
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Assets/_Client/Scripts/UI/UIController.cs

@@ -0,0 +1,91 @@
+using System;
+
+using UnityEngine;
+using UnityEngine.UIElements;
+
+
+namespace PPGIA.X540.Project3
+{
+    [RequireComponent(typeof(UIController))]
+    public class UIController : MonoBehaviour
+    {
+        private UIDocument _uiDocument;
+        private VisualElement _root;
+
+        private readonly string[] _sessionButtonLabels = { 
+            "Iniciar Sessão", 
+            "Encerrar Sessão" 
+        };
+        private Button _sessionButton;
+        private Button _sendChatButton;
+        private int _currentSessionState = 0;
+
+        private TextField _chatInputField;
+        private TextField _chatOutputField;
+
+        public string ChatOutput
+        {
+            get => _chatOutputField.value;
+            set => _chatOutputField.value = value;
+        }
+
+        public bool SessionActive {
+            get => _currentSessionState == 1;
+            set
+            {
+                _currentSessionState = value ? 1 : 0;
+                UpdateStateForSession();
+            }
+        }
+
+        public Action OnSessionButtonClicked { get; set; }
+        public Action<string> OnSendChatButtonClicked { get; set; }
+        public float Progress { get; set; }
+
+        private void Awake()
+        {
+            _uiDocument = GetComponent<UIDocument>();
+            _root = _uiDocument.rootVisualElement;
+
+            _sessionButton = _root.Q<Button>("B_Session");
+            _sendChatButton = _root.Q<Button>("B_SendChat");
+            _chatInputField = _root.Q<TextField>("TF_ChatInput");
+            _chatOutputField = _root.Q<TextField>("TF_ChatOutput");
+
+            SessionActive = false;
+        }
+
+        void OnEnable()
+        {            
+            _sessionButton.clicked += OnSessionButtonClickedInternal;
+            _sendChatButton.clicked += OnSendChatButtonClickedInternal;
+        }
+
+        void OnDisable()
+        {
+            _sessionButton.clicked -= OnSessionButtonClickedInternal;
+            _sendChatButton.clicked -= OnSendChatButtonClickedInternal;
+        }
+
+        private void UpdateStateForSession()
+        {
+            _sessionButton.text = _sessionButtonLabels[_currentSessionState];
+            
+            var enable = _currentSessionState == 1;
+            _chatInputField.SetEnabled(enable);
+            _sendChatButton.SetEnabled(enable);
+        }
+
+        private void OnSessionButtonClickedInternal()
+        {
+            OnSessionButtonClicked?.Invoke();
+            // SessionActive state will be updated externally
+        }
+
+        private void OnSendChatButtonClickedInternal()
+        {
+            OnSendChatButtonClicked?.Invoke(_chatInputField.value);
+            _chatInputField.value = string.Empty;
+        }
+    }
+}

Assets/_Client/Scripts/UI/UIController.cs.meta

@@ -0,0 +1,2 @@
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