Assets/_Client/GUI/Main.uss

@@ -2,5 +2,6 @@
 }
 
 .expandable {
+    flex-grow: 1;
     white-space: normal;
 }

Assets/_Client/GUI/Main.uxml

@@ -1,10 +1,11 @@
 <ui:UXML xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:ui="UnityEngine.UIElements" xmlns:uie="UnityEditor.UIElements" noNamespaceSchemaLocation="../../../UIElementsSchema/UIElements.xsd" editor-extension-mode="False">
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     <ui:VisualElement name="VE_Panel" style="flex-grow: 1;">
-        <ui:Button text="Falar..." name="B_Talk" />
+        <ui:Button text="Iniciar sessão" name="B_Session" />
+        <ui:Label text="Chat:" />
+        <ui:TextField placeholder-text="Digite sua mensagem" name="TF_ChatInput" class="expandable" />
+        <ui:Button text="Enviar mensagem" name="B_SendChat" />
         <ui:ProgressBar value="0" title="Processando... Por favor, espere..." name="PB_Progress" enabled="true" />
-        <ui:ScrollView>
+        <ui:TextField placeholder-text="response" multiline="true" readonly="true" name="TF_ChatOutput" class="expandable" />
-            <ui:TextField placeholder-text="response" multiline="true" readonly="true" name="TF_Dialogue" class="expandable" />
-        </ui:ScrollView>
     </ui:VisualElement>
 </ui:UXML>

Assets/_Client/Prefabs/-- GAME MANAGER --.prefab

@@ -1,6 +1,6 @@
 %YAML 1.1
 %TAG !u! tag:unity3d.com,2011:
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@@ -8,32 +8,84 @@ GameObject:
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+  m_Name: -- GAME MANAGER --
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+  _apiManager: {fileID: 4693018637014637836}
+--- !u!1 &4601626619299515270
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@@ -41,46 +93,47 @@ GameObject:
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+  - component: {fileID: 7625920793580372814}
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+  - component: {fileID: 1118623755729130604}
+  - component: {fileID: 4693018637014637836}
   m_Layer: 0
-  m_Name: Audio Output
+  m_Name: -- API Manager --
   m_TagString: Untagged
   m_Icon: {fileID: 0}
   m_NavMeshLayer: 0
   m_StaticEditorFlags: 0
   m_IsActive: 1
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   m_PrefabAsset: {fileID: 0}
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+  m_GameObject: {fileID: 4601626619299515270}
   serializedVersion: 2
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+  m_LocalRotation: {x: 0, y: 0, z: 0, w: 1}
   m_LocalPosition: {x: 0, y: 0, z: 0}
   m_LocalScale: {x: 1, y: 1, z: 1}
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   m_Children: []
-  m_Father: {fileID: 7970807069023951264}
+  m_Father: {fileID: 3228149243574310962}
   m_LocalEulerAnglesHint: {x: 0, y: 0, z: 0}
---- !u!82 &7584847903250953468
+--- !u!82 &1118623755729130604
 AudioSource:
   m_ObjectHideFlags: 0
   m_CorrespondingSourceObject: {fileID: 0}
   m_PrefabInstance: {fileID: 0}
   m_PrefabAsset: {fileID: 0}
-  m_GameObject: {fileID: 1759505303048597376}
+  m_GameObject: {fileID: 4601626619299515270}
   m_Enabled: 1
   serializedVersion: 4
   OutputAudioMixerGroup: {fileID: 4597973050289367049, guid: b4346293b16e5254aadce52e891ff5e9, type: 2}
   m_audioClip: {fileID: 0}
-  m_Resource: {fileID: 0}
+  m_Resource: {fileID: 8300000, guid: 6613d523ef2496349a24abd07925f85a, type: 3}
   m_PlayOnAwake: 0
   m_Volume: 1
   m_Pitch: 1
-  Loop: 0
+  Loop: 1
   Mute: 0
   Spatialize: 0
   SpatializePostEffects: 0
@@ -162,88 +215,6 @@ AudioSource:
     m_PreInfinity: 2
     m_PostInfinity: 2
     m_RotationOrder: 4
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-  m_TagString: GameController
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-  m_EditorClassIdentifier: PpgiaX540P3::PPGIA.X540.Project3.AppManager
-  _uiController: {fileID: 3705417928890449656}
-  _apiManager: {fileID: 4693018637014637836}
-  _audioCapture: {fileID: 1938294408165125026}
---- !u!1 &4601626619299515270
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-  m_Component:
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-  - component: {fileID: 4693018637014637836}
-  m_Layer: 0
-  m_Name: -- API Manager --
-  m_TagString: Untagged
-  m_Icon: {fileID: 0}
-  m_NavMeshLayer: 0
-  m_StaticEditorFlags: 0
-  m_IsActive: 1
---- !u!4 &7625920793580372814
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 --- !u!114 &4693018637014637836
 MonoBehaviour:
   m_ObjectHideFlags: 0
@@ -264,16 +235,14 @@ MonoBehaviour:
   _chatEndpoint: /chat/
   _llmAgentEndpoint: /agent/ask
   _ttsEndpoint: /tts/synthesize
-  _sttUploadEndpoint: /transcript/get-upload-url
+  _sttEndpoint: /stt/upload
-  _sttStartEndpoint: /transcript/start
-  _sttDownloadEndpoint: /transcript/download
   _clientId: unity-client
   _timeoutInSeconds: 10
   _query: "Ah, guru! Como \xE9 bom poder contar com suas orienta\xE7\xF5es!"
   _session:
     session_id: 9686ca2a-302a-4ac8-8709-a98067d37530
     created_at: 1763908462
-  _audioSource: {fileID: 7584847903250953468}
+  _audioSource: {fileID: 1118623755729130604}
 --- !u!1 &5836695571582163658
 GameObject:
   m_ObjectHideFlags: 0
@@ -283,10 +252,10 @@ GameObject:
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   m_Component:
   - component: {fileID: 8663494998515940154}
-  - component: {fileID: 796320736253214861}
   - component: {fileID: 1938294408165125026}
+  - component: {fileID: 796320736253214861}
   m_Layer: 0
-  m_Name: Audio Input
+  m_Name: -- AudioManager --
   m_TagString: Untagged
   m_Icon: {fileID: 0}
   m_NavMeshLayer: 0
@@ -305,8 +274,22 @@ Transform:
   m_LocalScale: {x: 1, y: 1, z: 1}
   m_ConstrainProportionsScale: 0
   m_Children: []
-  m_Father: {fileID: 7970807069023951264}
+  m_Father: {fileID: 3228149243574310962}
   m_LocalEulerAnglesHint: {x: 0, y: 0, z: 0}
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+  m_Script: {fileID: 11500000, guid: 9523fc2f4430eb549ab3da789eaf70c1, type: 3}
+  m_Name: 
+  m_EditorClassIdentifier: Assembly-CSharp::PPGIA.X540.Project3.AudioCapture
+  _sampleRateInHz: 16000
+  _playingBack: 0
 --- !u!82 &796320736253214861
 AudioSource:
   m_ObjectHideFlags: 0
@@ -316,7 +299,7 @@ AudioSource:
   m_GameObject: {fileID: 5836695571582163658}
   m_Enabled: 1
   serializedVersion: 4
-  OutputAudioMixerGroup: {fileID: -7600268988427216071, guid: b4346293b16e5254aadce52e891ff5e9, type: 2}
+  OutputAudioMixerGroup: {fileID: 4597973050289367049, guid: b4346293b16e5254aadce52e891ff5e9, type: 2}
   m_audioClip: {fileID: 0}
   m_Resource: {fileID: 0}
   m_PlayOnAwake: 1
@@ -404,91 +387,3 @@ AudioSource:
     m_PreInfinity: 2
     m_PostInfinity: 2
     m_RotationOrder: 4
---- !u!114 &1938294408165125026
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-  m_Name: 
-  m_EditorClassIdentifier: Assembly-CSharp::PPGIA.X540.Project3.AudioCapture
-  _sampleRateInHz: 16000
-  _maxRecordingSeconds: 300
-  _fileName: RecordedAudio.wav
-  _playbackVolume: 1
-  _enableMonitoring: 0
-  _monitorLatencyMs: 80
-  _microphones: []
-  _selectedMicrophoneIndex: 0
---- !u!1 &7800601072168794597
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-  - component: {fileID: 1529497273491449657}
-  - component: {fileID: 3705417928890449656}
-  m_Layer: 0
-  m_Name: -- UI Manager --
-  m_TagString: Untagged
-  m_Icon: {fileID: 0}
-  m_NavMeshLayer: 0
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-  m_PanelSettings: {fileID: 11400000, guid: 08c29b4a94427e44598b2f1d4bc32893, type: 2}
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-  sourceAsset: {fileID: 9197481963319205126, guid: 394ce53ae03aab84c98352e044c8bed4, type: 3}
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-  m_WorldSpaceWidth: 1920
-  m_WorldSpaceHeight: 1080
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-  m_WorldSpaceCollider: {fileID: 0}
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-  m_EditorClassIdentifier: PpgiaX540P3::PPGIA.X540.Project3.UIController

Assets/_Client/Scenes/Main.unity

@@ -440,9 +440,21 @@ PrefabInstance:
     serializedVersion: 3
     m_TransformParent: {fileID: 0}
     m_Modifications:
+    - target: {fileID: 796320736253214861, guid: 004ea84725223334994cf72d2115c180, type: 3}
+      propertyPath: OutputAudioMixerGroup
+      value: 
+      objectReference: {fileID: -7600268988427216071, guid: b4346293b16e5254aadce52e891ff5e9, type: 2}
+    - target: {fileID: 1938294408165125026, guid: 004ea84725223334994cf72d2115c180, type: 3}
+      propertyPath: _fileName
+      value: RecordedAudio.wav
+      objectReference: {fileID: 0}
+    - target: {fileID: 1938294408165125026, guid: 004ea84725223334994cf72d2115c180, type: 3}
+      propertyPath: _selectedMicrophoneIndex
+      value: 0
+      objectReference: {fileID: 0}
     - target: {fileID: 3050228793350555746, guid: 004ea84725223334994cf72d2115c180, type: 3}
       propertyPath: m_Name
-      value: -- APP MANAGER --
+      value: -- GAME MANAGER --
       objectReference: {fileID: 0}
     - target: {fileID: 3228149243574310962, guid: 004ea84725223334994cf72d2115c180, type: 3}
       propertyPath: m_LocalPosition.x

Assets/_Client/Scripts/API/ApiClient.cs

@@ -1,6 +1,6 @@
 using System;
-using System.IO;
 using System.Collections;
+using System.IO;
 using System.Text;
 
 using UnityEngine;
@@ -56,6 +56,12 @@ namespace PPGIA.X540.Project3.API
 
                 request.downloadHandler = new DownloadHandlerBuffer();
 
+                // Debug.Log($"Sending {method} request to {url}");
+                // Debug.Log(
+                //     payload != null ?
+                //     $"Payload: {JsonUtility.ToJson(payload)}" :
+                //     "No payload.");
+
                 var op = request.SendWebRequest();
                 yield return WaitForTimeout(op, timeoutInSeconds, () =>
                 {
@@ -111,170 +117,6 @@ Response Body: {body}";
                 url, "DELETE", null, timeoutInSeconds, callbackOnSuccess);
         }
 
-        internal static IEnumerator UploadAudioDataCoroutine(
-            string url,
-            string filePath,
-            float timeoutInSeconds,
-            Action<UnityWebRequest> callbackOnSuccess)
-        {
-            // PUT the audio data as binary
-            byte[] audioData = File.ReadAllBytes(filePath);
-            string fileName = Path.GetFileName(filePath);
-
-            using (UnityWebRequest request = UnityWebRequest.Put(url, audioData))
-            {
-                request.SetRequestHeader("Content-Type", "audio/wav");
-                
-                var op = request.SendWebRequest();
-                yield return WaitForTimeout(op, timeoutInSeconds, () =>
-                {
-                    Debug.LogError("Request timed out.");
-                });
-
-                if (request.result == UnityWebRequest.Result.Success)
-                {
-                    callbackOnSuccess?.Invoke(request);
-                }
-                else
-                {
-                    var body = request.downloadHandler?.text ?? string.Empty;
-                    Debug.LogError($"Failed to upload audio data: {request.error} (HTTP {request.responseCode})\nBody: {body}");
-                }
-            }
-        }
-
-        internal static IEnumerator UploadAudioCoroutine(
-            string url,
-            AudioClip audioClip,
-            float timeoutInSeconds,
-            Action<UnityWebRequest> callbackOnSuccess)
-        {
-            // Convert AudioClip to WAV (PCM 16-bit little endian) without external utility.
-            byte[] audioData = AudioClipToWavBytes(audioClip);
-            string fileName = $"{audioClip.name}.wav";
-            string fieldName = "file";
-
-            yield return UploadFileCoroutine(
-                url, audioData, fileName, fieldName, timeoutInSeconds, callbackOnSuccess);
-        }
-
-        // Writes a WAV file header + PCM 16-bit data for the provided AudioClip.
-        // Supports mono or multi-channel clips. Assumes clip.samples * channels fits in int32.
-        private static byte[] AudioClipToWavBytes(AudioClip clip)
-        {
-            if (clip == null)
-            {
-                Debug.LogError("AudioClipToWavBytes: clip is null");
-                return Array.Empty<byte>();
-            }
-
-            int channels = clip.channels;
-            int sampleCount = clip.samples * channels; // total samples across channels
-            int sampleRate = clip.frequency;
-
-            // Get float data
-            float[] floatData = new float[sampleCount];
-            clip.GetData(floatData, 0);
-
-            // Convert to 16-bit PCM
-            // Each sample -> 2 bytes
-            byte[] pcmData = new byte[sampleCount * 2];
-            int pcmIndex = 0;
-            for (int i = 0; i < sampleCount; i++)
-            {
-                // Clamp just in case
-                float f = Mathf.Clamp(floatData[i], -1f, 1f);
-                short s = (short)Mathf.RoundToInt(f * 32767f);
-                pcmData[pcmIndex++] = (byte)(s & 0xFF); // little endian
-                pcmData[pcmIndex++] = (byte)((s >> 8) & 0xFF);
-            }
-
-            // WAV header size is 44 bytes
-            int headerSize = 44;
-            int fileSize = headerSize + pcmData.Length;
-            byte[] wav = new byte[fileSize];
-
-            // Helper local to write int/short little endian
-            void WriteInt32LE(int offset, int value)
-            {
-                wav[offset] = (byte)(value & 0xFF);
-                wav[offset + 1] = (byte)((value >> 8) & 0xFF);
-                wav[offset + 2] = (byte)((value >> 16) & 0xFF);
-                wav[offset + 3] = (byte)((value >> 24) & 0xFF);
-            }
-            void WriteInt16LE(int offset, short value)
-            {
-                wav[offset] = (byte)(value & 0xFF);
-                wav[offset + 1] = (byte)((value >> 8) & 0xFF);
-            }
-
-            // ChunkID "RIFF"
-            wav[0] = (byte)'R'; wav[1] = (byte)'I'; wav[2] = (byte)'F'; wav[3] = (byte)'F';
-            // ChunkSize = 36 + Subchunk2Size
-            int subchunk2Size = pcmData.Length; // NumSamples * NumChannels * BitsPerSample/8
-            WriteInt32LE(4, 36 + subchunk2Size);
-            // Format "WAVE"
-            wav[8] = (byte)'W'; wav[9] = (byte)'A'; wav[10] = (byte)'V'; wav[11] = (byte)'E';
-            // Subchunk1ID "fmt "
-            wav[12] = (byte)'f'; wav[13] = (byte)'m'; wav[14] = (byte)'t'; wav[15] = (byte)' ';
-            // Subchunk1Size (16 for PCM)
-            WriteInt32LE(16, 16);
-            // AudioFormat (1 = PCM)
-            WriteInt16LE(20, 1);
-            // NumChannels
-            WriteInt16LE(22, (short)channels);
-            // SampleRate
-            WriteInt32LE(24, sampleRate);
-            // ByteRate = SampleRate * NumChannels * BitsPerSample/8
-            int byteRate = sampleRate * channels * 2;
-            WriteInt32LE(28, byteRate);
-            // BlockAlign = NumChannels * BitsPerSample/8
-            WriteInt16LE(32, (short)(channels * 2));
-            // BitsPerSample
-            WriteInt16LE(34, 16);
-            // Subchunk2ID "data"
-            wav[36] = (byte)'d'; wav[37] = (byte)'a'; wav[38] = (byte)'t'; wav[39] = (byte)'a';
-            // Subchunk2Size
-            WriteInt32LE(40, subchunk2Size);
-
-            // Copy PCM data after header
-            Buffer.BlockCopy(pcmData, 0, wav, headerSize, pcmData.Length);
-
-            return wav;
-        }
-
-        internal static IEnumerator UploadFileCoroutine(
-            string url,
-            byte[] fileData,
-            string fileName,
-            string fieldName,
-            float timeoutInSeconds,
-            Action<UnityWebRequest> callbackOnSuccess)
-        {
-            WWWForm form = new WWWForm();
-            form.AddBinaryData(fieldName, fileData, fileName);
-
-            using (UnityWebRequest request =
-                    UnityWebRequest.Post(url, form))
-            {
-                var op = request.SendWebRequest();
-                yield return WaitForTimeout(op, timeoutInSeconds, () =>
-                {
-                    Debug.LogError("Request timed out.");
-                });
-
-                if (request.result == UnityWebRequest.Result.Success)
-                {
-                    callbackOnSuccess?.Invoke(request);
-                }
-                else
-                {
-                    Debug.LogError(
-                        $"Error uploading file: {request.error}");
-                }
-            }
-        }
-
         internal static IEnumerator DownloadAudioCoroutine(
             string url,
             float timeoutInSeconds,

Assets/_Client/Scripts/API/ApiClientManager.cs

@@ -1,5 +1,4 @@
 using System;
-using System.IO;
 using System.Collections;
 using System.Linq;
 
@@ -8,6 +7,7 @@ using UnityEngine;
 
 namespace PPGIA.X540.Project3.API
 {
+    [RequireComponent(typeof(AudioSource))]
     public class ApiClientManager : MonoBehaviour
     {
         #region -- Inspector Fields -------------------------------------------
@@ -29,7 +29,7 @@ namespace PPGIA.X540.Project3.API
         private string _sessionCloseEndpoint = "/session/close";
 
         [SerializeField]
-        private string _chatEndpoint = "/chat";
+        private string _chatEndpoint = "/chat/";
 
         [SerializeField]
         private string _llmAgentEndpoint = "/agent/ask";
@@ -38,13 +38,7 @@ namespace PPGIA.X540.Project3.API
         private string _ttsEndpoint = "/tts/synthesize";
 
         [SerializeField]
-        private string _sttUploadEndpoint = "/transcript/get-upload-url";
+        private string _sttEndpoint = "/stt/upload";
-
-        [SerializeField]
-        private string _sttStartEndpoint = "/transcript/start";
-
-        [SerializeField]
-        private string _sttDownloadEndpoint = "/transcript/download";
 
         [Header("API Settings & Workload")]
         [SerializeField]
@@ -79,10 +73,7 @@ namespace PPGIA.X540.Project3.API
 
         void Awake()
         {
-            if (_audioSource == null)
             _audioSource = GetComponent<AudioSource>();
-            if (_audioSource == null)
-                Debug.LogWarning("AudioSource component is missing.");
         }
 
         #region -- API Calls --------------------------------------------------
@@ -140,135 +131,6 @@ namespace PPGIA.X540.Project3.API
             }));
         }
 
-        public void UploadAudioClip(
-            string localFilePath, Action<string> uploadCompletedCallback = null)
-        {
-            if (_session == null)
-            {
-                Debug.LogWarning("No active session. Please initiate a session first.");
-                return;
-            }
-
-            StopAllCoroutines();
-
-            var url = EndpointUrl(_sttUploadEndpoint, _session.SessionId);
-            var payload = new 
-            {
-                filename = Path.GetFileName(localFilePath),
-                content_type = "audio/wav"
-            };
-
-            StartCoroutine(ApiClient.CallEndpointWithPostCoroutine(
-                url, _timeoutInSeconds, payload, (request) =>
-            {
-                var body = request.downloadHandler?.text ?? string.Empty;
-                var uploadUrl = JsonUtility.FromJson<STTUploadResponse>(body)?.UploadUrl;
-                var s3Key = JsonUtility.FromJson<STTUploadResponse>(body)?.S3Key;
-                if (uploadUrl == null)
-                {
-                    Debug.LogWarning("Failed to get upload URL.");
-                    return;
-                }
-
-                StartCoroutine(ApiClient.UploadAudioDataCoroutine(
-                    uploadUrl, localFilePath, _timeoutInSeconds, (uploadRequest) =>
-                {
-                    Debug.Log($"Audio upload complete: {uploadRequest.responseCode}");
-                    uploadCompletedCallback?.Invoke(s3Key);
-                }));
-            }));
-        }
-
-
-        [ContextMenu("STT/Upload Audio Clip")]
-        public void StartTranscript(string s3Key,
-            Action<string> transcriptStartedCallback = null)
-        {
-            // Ensure there is an active session
-            if (_session == null)
-            {
-                Debug.LogWarning("No active session. Please initiate a session first.");
-                return;
-            }
-            if (string.IsNullOrEmpty(s3Key))
-            {
-                Debug.LogWarning("No file path provided for upload.");
-                return;
-            }
-
-            StopAllCoroutines();
-
-            // Build the endpoint URL
-            var url = EndpointUrl(_sttStartEndpoint);
-            var payload = new STTUploadResponse {
-                s3_key = s3Key
-            };
-
-            // Make the API call to upload the audio clip
-            StartCoroutine(ApiClient.CallEndpointWithPostCoroutine(
-                url, _timeoutInSeconds, payload, (request) =>
-            {
-                var body = request.downloadHandler?.text ?? string.Empty;
-                var response = ApiModel.FromJson<STTJobResponse>(body);
-                var jobName = response?.JobName;
-
-                Debug.Log($"Transcription job started: {jobName}");
-                transcriptStartedCallback?.Invoke(jobName);
-            }));
-        }
-
-        [ContextMenu("STT/Download Transcription")]
-        public void DownloadTranscription(string jobName,
-            Action<string> transcriptionReceivedCallback = null)
-        {
-            // Ensure there is an active session
-            if (_session == null)
-            {
-                Debug.LogWarning("No active session. Please initiate a session first.");
-                return;
-            }
-
-            StopAllCoroutines();
-
-            StartCoroutine(KeepCallingCoroutine(
-                EndpointUrl(_sttDownloadEndpoint, jobName), .5f,
-                transcriptionReceivedCallback
-            ));
-
-        }
-
-        private IEnumerator KeepCallingCoroutine(string url,
-            float delayInSeconds, Action<string> callback)
-        {
-            // Make the API call to download the transcription
-            var wait = new WaitForSeconds(delayInSeconds);
-
-            bool keepCalling = true;
-            while (keepCalling)
-            {
-                yield return wait;
-                yield return ApiClient.CallEndpointWithGetCoroutine(
-                    url, _timeoutInSeconds, (request) =>
-                {
-                    var body = request.downloadHandler?.text ?? string.Empty;
-                    var response = ApiModel.FromJson<STTJobResponse>(body);
-
-                    if (response.Status == "FAILED")
-                    {
-                        keepCalling = false;
-                        Debug.LogError("Transcription job failed.");
-                        callback?.Invoke(null);
-                    }
-                    else if (response.Status == "COMPLETED")
-                    {
-                        keepCalling = false;
-                        callback?.Invoke(response?.Transcript);
-                    }
-                });
-            }
-        }
-
-
         [ContextMenu("Chat/Send Message")]
         public void SendChatMessage(string message = null,
             Action<string> responseReceivedCallback = null,

Assets/_Client/Scripts/API/ApiModel.cs

@@ -48,30 +48,6 @@ namespace PPGIA.X540.Project3.API
         public int ExpiresIn => expires_in;
     }
 
-    [Serializable]
-    public class STTUploadResponse : ApiModel
-    {
-        public string upload_url;
-        public string s3_key;
-
-        public string UploadUrl => upload_url;
-        public string S3Key => s3_key;
-    }
-
-    [Serializable]
-    public class STTJobResponse : ApiModel
-    {
-        public string job_name;
-        public string s3_uri;
-        public string status;
-        public string transcript;
-        
-        public string JobName => job_name;
-        public string S3Uri => s3_uri;
-        public string Status => status;
-        public string Transcript => transcript;
-    }
-
     internal enum Environment
     {
         Development,

Assets/_Client/Scripts/AudioCapture.cs

@@ -18,7 +18,6 @@ namespace PPGIA.X540.Project3
             Hz96000 = 96000
         }
 
-        #region -- Fields & Properties ----------------------------------------
         [Header("Audio Capture Settings")]
         [SerializeField]
         private SampleRate _sampleRateInHz = SampleRate.Hz44100;
@@ -55,14 +54,9 @@ namespace PPGIA.X540.Project3
         private List<short> _capturedSamples = 
             new List<short>(1024 * 32); // filled only on Stop
         private int _channels = 1; // microphone channel count (Unity usually mono)
-        
         private AudioClip _recordingClip;
-        public AudioClip GetRecordedClip() => _recordingClip;
-        
         private string _currentDevice;
-        #endregion ------------------------------------------------------------
 
-        #region -- MonoBehaviour Methods --------------------------------------
         private void Awake()
         {
             _audioSource = GetComponent<AudioSource>();
@@ -73,7 +67,6 @@ namespace PPGIA.X540.Project3
         {
             StopRecording();
         }
-        #endregion ------------------------------------------------------------
 
         [ContextMenu("Start recording audio")]
         public void StartRecording()
@@ -222,6 +215,7 @@ namespace PPGIA.X540.Project3
                     writer.Write(dataBytes);
                 }
                 LastSavedFilePath = filePath;
+                Debug.Log($"Audio saved to: {filePath}");
                 OnRecordingSaved?.Invoke(filePath);
             }
             catch (Exception ex)

Assets/_Client/Scripts/Core/AppManager.cs

@@ -7,10 +7,6 @@ namespace PPGIA.X540.Project3
 {
     public class AppManager : MonoBehaviour
     {
-        // Singleton instance
-        public static AppManager Instance { get; private set; }
-
-        #region -- Fields & Properties ----------------------------------------
         [Header("References")]
         [SerializeField]
         private UIController _uiController;
@@ -18,129 +14,59 @@ namespace PPGIA.X540.Project3
         [SerializeField]
         private ApiClientManager _apiManager;
 
-        [SerializeField]
-        private AudioCapture _audioCapture;
-
-        private AudioClip _recordedClip;
-        #endregion ------------------------------------------------------------
-
-        #region -- MonoBehaviour Methods --------------------------------------
         private void Awake()
         {
-            // Singleton pattern implementation
-            if (Instance == null)
-            {
-                Instance = this;
-                DontDestroyOnLoad(gameObject);
-            }
-            else
-            {
-                Destroy(gameObject);
-                return;
-            }
-
             if (_uiController == null)
-            {
+                _uiController = GetComponent<UIController>();
-                Debug.LogError("UIController reference is missing in AppManager.");
-            }
             if (_apiManager == null)
-            {
+                _apiManager = GetComponent<ApiClientManager>();
-                Debug.LogError("ApiClientManager reference is missing in AppManager.");
-            }
-            if (_audioCapture == null)
-            {
-                Debug.LogError("AudioCapture reference is missing in AppManager.");
         }
 
-            _uiController.OnTalkButtonClicked += HandleTalkButtonClicked;
+        void Start()
-            _audioCapture.OnRecordingSaved += HandleClipSaved;
+        {
-
+            _apiManager.CloseSession(
+                () => _uiController.SessionActive = _apiManager.IsSessionActive);
         }
 
         private void OnEnable()
         {
-            _apiManager.InitiateSession(() =>
+            _uiController.OnSessionButtonClicked += HandleSessionButtonClicked;
-            {
+            _uiController.OnSendChatButtonClicked += HandleSendChatButtonClicked;
-                Debug.Log("API session initiated successfully.");
-            });
         }
 
-        void OnDisable()
+        private void OnDisable()
         {
-            if (_apiManager != null && _apiManager.IsSessionActive)
+            _uiController.OnSessionButtonClicked -= HandleSessionButtonClicked;
-            {
+            _uiController.OnSendChatButtonClicked -= HandleSendChatButtonClicked;
-                _apiManager.CloseSession(() =>
-                {
-                    Debug.Log("API session closed successfully.");
-                });
-            }
         }
 
-        private void OnDestroy()
+        private void HandleSessionButtonClicked()
-        {
-            _uiController.OnTalkButtonClicked -= HandleTalkButtonClicked;
-            _audioCapture.OnRecordingSaved -= HandleClipSaved;
-        }
-        #endregion ------------------------------------------------------------
-
-        private void HandleClipSaved(string filePath)
-        {
-            Debug.Log($"Audio clip saved at: {filePath}");
-
-            _apiManager.UploadAudioClip(
-                filePath,
-                (s3Key) =>
-                {
-                    Debug.Log($"Clip uploaded to: {s3Key}");
-                    _apiManager.StartTranscript(
-                        s3Key,
-                        (jobName) =>
-                        {
-                            Debug.Log($"Transcription job started: {jobName}");
-                            _apiManager.DownloadTranscription(jobName, (transcript) =>
-                            {
-                                Debug.Log($"Transcription completed: {transcript}");
-                                _uiController.AppendChatOutput($"\nUser: {transcript}\n");
-
-                                _apiManager.SendChatMessage(transcript,
-                                    (response) =>
-                                    {
-                                        _uiController.AppendChatOutput($"Bot: {response}\n");
-                                    }, () =>
-                                    {
-                                        // Speech synthesis finished.
-                                    });
-                                });
-                            });
-                        });
-
-            _uiController.CurrentState = UIController.UIState.Idle;
-        }
-
-        private void HandleTalkButtonClicked()
         {
             if (!_apiManager.IsSessionActive)
             {
-                Debug.LogWarning("Session is not active. Cannot send message.");
+                _apiManager.InitiateSession(
-                return;
+                    () => _uiController.SessionActive = _apiManager.IsSessionActive);
             }
-
+            else
-            switch (_uiController.CurrentState)
             {
-                case UIController.UIState.Idle:
+                _apiManager.CloseSession(
-                    _audioCapture.StartRecording();
+                    () => _uiController.SessionActive = _apiManager.IsSessionActive
-                    _uiController.CurrentState = UIController.UIState.Recording;
+                );
-                    break;
-
-                case UIController.UIState.Recording:
-                    _audioCapture.StopRecording();
-                    _uiController.CurrentState = UIController.UIState.Idle;
-                    break;
-
-                case UIController.UIState.Processing:
-                    Debug.Log("Currently processing. Please wait.");
-                    break;
             }
         }
+
+        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/UI/UIController.cs

@@ -6,113 +6,86 @@ using UnityEngine.UIElements;
 
 namespace PPGIA.X540.Project3
 {
-    [RequireComponent(typeof(UIDocument))]
+    [RequireComponent(typeof(UIController))]
     public class UIController : MonoBehaviour
     {
-        public enum UIState
-        {
-            Idle = 0,
-            Recording = 1,
-            Processing = 2
-        }
-
         private UIDocument _uiDocument;
         private VisualElement _root;
 
-        #region -- Fields & Properties ----------------------------------------
+        private readonly string[] _sessionButtonLabels = { 
-        private readonly string[] _sendChatButtonLabels = {
+            "Iniciar Sessão", 
-            "Falar...",
+            "Encerrar Sessão" 
-            "Enviar...",
-            "Processando... Aguarde..."
         };
+        private Button _sessionButton;
+        private Button _sendChatButton;
+        private int _currentSessionState = 0;
 
-        // UI controls --------------------------------------------------------
+        private TextField _chatInputField;
-        private Button _talkButton;
-
         private TextField _chatOutputField;
+
         public string ChatOutput
         {
             get => _chatOutputField.value;
             set => _chatOutputField.value = value;
         }
 
-        private ProgressBar _progressBar;
+        public bool SessionActive {
-        public float Progress
+            get => _currentSessionState == 1;
-        {
-            get => _progressBar.value;
-            set => _progressBar.value = value;
-        }
-
-        // State management ---------------------------------------------------
-        private UIState _currentState = UIState.Idle;
-        public UIState CurrentState
-        {
-            get => _currentState;
             set
             {
-                _currentState = value;
+                _currentSessionState = value ? 1 : 0;
-                _talkButton.text = _sendChatButtonLabels[(int)value];
+                UpdateStateForSession();
-                if (value == UIState.Processing)
-                {
-                    _talkButton.SetEnabled(false);
-                    _progressBar.value = 0.5f;
-                }
-                else
-                {
-                    _talkButton.SetEnabled(true);
-                    _progressBar.value = 0f;
-                }
             }
         }
 
-        // Event Handlers -----------------------------------------------------
+        public Action OnSessionButtonClicked { get; set; }
-        public event Action OnTalkButtonClicked;
+        public Action<string> OnSendChatButtonClicked { get; set; }
+        public float Progress { get; set; }
 
-        #endregion ------------------------------------------------------------
-
-        #region -- MonoBehaviour Methods --------------------------------------
         private void Awake()
         {
             _uiDocument = GetComponent<UIDocument>();
             _root = _uiDocument.rootVisualElement;
 
-            _talkButton = _root.Q<Button>("B_Talk");
+            _sessionButton = _root.Q<Button>("B_Session");
-            if (_talkButton == null)
+            _sendChatButton = _root.Q<Button>("B_SendChat");
-            {
+            _chatInputField = _root.Q<TextField>("TF_ChatInput");
-                Debug.LogError("Talk Button not found in UI.");
+            _chatOutputField = _root.Q<TextField>("TF_ChatOutput");
+
+            SessionActive = false;
         }
 
-            _progressBar = _root.Q<ProgressBar>("PB_Progress");
+        void OnEnable()
-            if (_progressBar == null)
         {            
-                Debug.LogError("Progress Bar not found in UI.");
+            _sessionButton.clicked += OnSessionButtonClickedInternal;
+            _sendChatButton.clicked += OnSendChatButtonClickedInternal;
         }
 
-            _chatOutputField = _root.Q<TextField>("TF_Dialogue");
+        void OnDisable()
-            if (_chatOutputField == null)
         {
-                Debug.LogError("Chat Output Field not found in UI.");
+            _sessionButton.clicked -= OnSessionButtonClickedInternal;
+            _sendChatButton.clicked -= OnSendChatButtonClickedInternal;
         }
 
-            CurrentState = UIState.Idle;
+        private void UpdateStateForSession()
+        {
+            _sessionButton.text = _sessionButtonLabels[_currentSessionState];
+            
+            var enable = _currentSessionState == 1;
+            _chatInputField.SetEnabled(enable);
+            _sendChatButton.SetEnabled(enable);
         }
 
-        private void OnEnable()
+        private void OnSessionButtonClickedInternal()
         {
-            _talkButton.clicked += OnTalkButtonClickedInternal;
+            OnSessionButtonClicked?.Invoke();
+            // SessionActive state will be updated externally
         }
 
-        private void OnDisable()
+        private void OnSendChatButtonClickedInternal()
         {
-            _talkButton.clicked -= OnTalkButtonClickedInternal;
+            OnSendChatButtonClicked?.Invoke(_chatInputField.value);
-        }
+            _chatInputField.value = string.Empty;
-        #endregion ------------------------------------------------------------
-
-        private void OnTalkButtonClickedInternal() => OnTalkButtonClicked?.Invoke();
-
-        public void AppendChatOutput(string newText)
-        {
-            ChatOutput += newText;
         }
     }
 }

Assets/_Client/Settings/App.PanelSettings.asset

@@ -29,7 +29,7 @@ MonoBehaviour:
   m_Match: 0
   m_SortingOrder: 0
   m_TargetDisplay: 0
-  m_BindingLogLevel: 2
+  m_BindingLogLevel: 0
   m_ClearDepthStencil: 1
   m_ClearColor: 0
   m_ColorClearValue: {r: 0, g: 0, b: 0, a: 0}