fixed the Wi-Fi direct server creation

app/src/main/java/com/faraphel/tasks_valider/connectivity/bwd/README.md

@@ -1,6 +1,6 @@
-# Better WiFi-Direct (BWD)
+# Better Wi-Fi Direct (BWD)
 
-This package contain code to improve the base WiFi-Direct implementation.
+This package contain code to improve the base Wi-Fi Direct implementation.
 
 The base have some issue, like an abusive usage of listener, error code and events that make using it 
 very impractical.

app/src/main/java/com/faraphel/tasks_valider/ui/screen/communication/connection/internet/selection.kt

@@ -18,7 +18,6 @@ import androidx.navigation.compose.rememberNavController
 import com.faraphel.tasks_valider.database.TaskDatabase
 
 
-@RequiresApi(Build.VERSION_CODES.O)
 @Composable
 fun CommunicationInternetSelectScreen(activity: Activity, database: TaskDatabase) {
     val controller = rememberNavController()

app/src/main/java/com/faraphel/tasks_valider/ui/screen/communication/connection/internet/server.kt

@@ -1,9 +1,7 @@
 package com.faraphel.tasks_valider.ui.screen.communication.connection.internet
 
 import android.app.Activity
-import android.os.Build
 import android.util.Log
-import androidx.annotation.RequiresApi
 import androidx.compose.foundation.layout.*
 import androidx.compose.foundation.text.KeyboardOptions
 import androidx.compose.material3.Button
@@ -75,7 +73,6 @@ fun CommunicationInternetServerScreen(
 }
 
 
-@RequiresApi(Build.VERSION_CODES.O)
 @Composable
 fun CommunicationInternetServerContent(
     database: TaskDatabase,
@@ -182,12 +179,7 @@ fun CommunicationInternetServerContent(
                     val session = database.sessionDao().getById(sessionId)!!
 
                     // TODO(Faraphel): remove, this is a test function
-                    Thread {
-                        populateSubjectSessionPersonTest(database, session)
-                    }.let { thread ->
-                        thread.start()
-                        thread.join()
-                    }
+                    populateSubjectSessionPersonTest(database, session)
 
                     // Create the server
                     Log.i("room-server", "creating the server")

app/src/main/java/com/faraphel/tasks_valider/ui/screen/communication/connection/wifiP2p/selection.kt

@@ -6,6 +6,7 @@ import androidx.compose.material3.Button
 import androidx.compose.material3.Text
 import androidx.compose.runtime.Composable
 import androidx.compose.runtime.LaunchedEffect
+import androidx.compose.runtime.remember
 import androidx.compose.ui.Alignment
 import androidx.compose.ui.Modifier
 import androidx.compose.ui.unit.dp
@@ -15,23 +16,20 @@ import androidx.navigation.compose.NavHost
 import androidx.navigation.compose.composable
 import androidx.navigation.compose.rememberNavController
 import com.faraphel.tasks_valider.connectivity.bwd.BwdManager
+import com.faraphel.tasks_valider.database.TaskDatabase
 
 
 @Composable
-fun CommunicationWifiP2pScreen(activity: Activity) {
+fun CommunicationWifiP2pScreen(activity: Activity, database: TaskDatabase) {
     val controller = rememberNavController()
 
-    var bwdManager: BwdManager? = null
-
-    LaunchedEffect(true) {
-        // start the BWD manager
-        bwdManager = BwdManager.fromActivity(activity)
-    }
+    // create the Wi-Fi Direct manager
+    val bwdManager = remember { BwdManager.fromActivity(activity) }
 
     NavHost(navController = controller, startDestination = "mode") {
         composable("mode") { CommunicationWifiP2pSelectContent(controller) }
-        // composable("client") { CommunicationWifiP2pClientScreen(activity, bwdManager) }
-        composable("server") { CommunicationWifiP2pServerScreen(activity, bwdManager!!) }
+        composable("client") { CommunicationWifiP2pClientScreen(activity, bwdManager) }
+        composable("server") { CommunicationWifiP2pServerScreen(activity, database, bwdManager) }
     }
 }
 

app/src/main/java/com/faraphel/tasks_valider/ui/screen/communication/connection/wifiP2p/server.kt

@@ -1,18 +1,72 @@
 package com.faraphel.tasks_valider.ui.screen.communication.connection.wifiP2p
 
 import android.app.Activity
-import androidx.compose.runtime.Composable
-import androidx.compose.runtime.MutableState
-import androidx.compose.runtime.mutableStateOf
-import androidx.compose.runtime.remember
+import android.util.Log
+import androidx.compose.foundation.layout.*
+import androidx.compose.foundation.text.KeyboardOptions
+import androidx.compose.material3.*
+import androidx.compose.runtime.*
+import androidx.compose.ui.Alignment
+import androidx.compose.ui.Modifier
+import androidx.compose.ui.text.input.KeyboardType
+import androidx.compose.ui.unit.dp
+import androidx.compose.ui.unit.sp
+import androidx.navigation.compose.NavHost
+import androidx.navigation.compose.composable
+import androidx.navigation.compose.rememberNavController
 import com.faraphel.tasks_valider.connectivity.bwd.BwdManager
 import com.faraphel.tasks_valider.connectivity.task.TaskClient
+import com.faraphel.tasks_valider.connectivity.task.TaskServer
+import com.faraphel.tasks_valider.database.TaskDatabase
+import com.faraphel.tasks_valider.database.entities.ClassEntity
+import com.faraphel.tasks_valider.database.entities.PersonEntity
+import com.faraphel.tasks_valider.database.entities.SessionEntity
+import com.faraphel.tasks_valider.database.populateSubjectSessionPersonTest
+import com.faraphel.tasks_valider.ui.screen.communication.DEFAULT_SERVER_PORT
+import com.faraphel.tasks_valider.ui.screen.communication.RANGE_SERVER_PORT
+import com.faraphel.tasks_valider.ui.screen.communication.authentication.AuthenticationServerScreen
+import com.faraphel.tasks_valider.ui.screen.communication.connection.internet.CommunicationInternetServerContent
+import com.faraphel.tasks_valider.ui.screen.task.TaskSessionController
+import java.time.Instant
 
 
 @Composable
-fun CommunicationWifiP2pServerScreen(activity: Activity, bwdManager: BwdManager) {
+fun CommunicationWifiP2pServerScreen(
+    activity: Activity,
+    database: TaskDatabase,
+    bwdManager: BwdManager
+) {
+    val controller = rememberNavController()
+
+    val adminPersonEntityRaw = remember { mutableStateOf<PersonEntity?>(null) }
+    val adminPersonEntity = remember { mutableStateOf<PersonEntity?>(null) }
     val client = remember { mutableStateOf<TaskClient?>(null) }
 
+    NavHost(navController = controller, startDestination = "authentication") {
+        composable("authentication") {
+            // if the admin person is not created, prompt the user for the admin information
+            if (adminPersonEntityRaw.value == null) AuthenticationServerScreen(adminPersonEntityRaw)
+            else controller.navigate("configuration")
+        }
+        composable("configuration") {
+            if (client.value == null)
+                CommunicationWifiP2pServerContent(
+                    database,
+                    bwdManager,
+                    adminPersonEntityRaw,
+                    adminPersonEntity,
+                    client,
+                )
+            else controller.navigate("session")
+        }
+        composable("session") {
+            TaskSessionController(
+                activity,
+                client.value!!,
+                adminPersonEntity.value!!
+            )
+        }
+    }
     // TODO(Faraphel): fix and get a user
     // if the server is not created, prompt the user for the server configuration
     // if (client.value == null) CommunicationWifiP2pServerContent(activity, bwfManager, client)
@@ -23,83 +77,115 @@ fun CommunicationWifiP2pServerScreen(activity: Activity, bwdManager: BwdManager)
 
 @Composable
 fun CommunicationWifiP2pServerContent(
-    activity: Activity,
+    database: TaskDatabase,
     bwdManager: BwdManager,
+    adminPersonEntityRaw: MutableState<PersonEntity?>,
+    adminPersonEntity: MutableState<PersonEntity?>,
     client: MutableState<TaskClient?>
 ) {
-    /*
-    val expandedStudentList = remember { mutableStateOf(false) }
-    val serverPort = remember { mutableIntStateOf(DEFAULT_SERVER_PORT) }
+    val classes = remember { mutableStateOf<List<ClassEntity>?>(null) }
+    val selectedClass = remember { mutableStateOf<ClassEntity?>(null) }
+    val areClassesExpanded = remember { mutableStateOf(false) }
 
-    Column {
-        // student list
-        Button(onClick = { expandedStudentList.value = !expandedStudentList.value }) {
-            Text(text = "Select Students List")
-        }
-        DropdownMenu(
-            expanded = expandedStudentList.value,
-            onDismissRequest = { expandedStudentList.value = false }
-        ) {
-            DropdownMenuItem(
-                text = { Text("ISRI") },
-                onClick = {}
-            )
-            DropdownMenuItem(
-                text = { Text("MIAGE") },
-                onClick = {}
-            )
-            // TODO(Faraphel): student lists should be loaded from the database or a file
-        }
+    LaunchedEffect(true) {
+        // refresh the list of classes
+        Thread { refreshClasses(database, classes) }.start()
+    }
 
-        // server port
-        TextField(
-            value = serverPort.intValue.toString(),
-            keyboardOptions = KeyboardOptions(keyboardType = KeyboardType.Number),
-            onValueChange = { text ->
-                val port = text.toInt()
-                if (port in RANGE_SERVER_PORT) {
-                    serverPort.intValue = port
-                }
-            }
+    Column(
+        modifier = Modifier.fillMaxSize(),
+        verticalArrangement = Arrangement.Center,
+        horizontalAlignment = Alignment.CenterHorizontally
+    ) {
+        // title
+        Text(
+            text = "New Session",
+            fontSize = 32.sp
         )
 
-        Button(onClick = {
-            // TODO(Faraphel): should be merged with the internet server
+        // separator
+        Spacer(modifier = Modifier.height(24.dp))
 
-            // Reset the database | TODO(Faraphel): only for testing purpose
-            activity.deleteDatabase("local")
-
-            // Create the database
-            val database = Room.databaseBuilder(
-                activity,
-                TaskDatabase::class.java,
-                "local"
-            ).build()
-
-            // Create the admin
-            // TODO: the admin should be created from the card reader
-            val adminPersonEntity = PersonEntity(
-                "admin",
-                "admin",
-                "123456789",
-                "admin",
-
-            )
-
-            // Insert the admin in the database
-            database.personDao().insert(adminPersonEntity)
-
-            bwfManager.recreateGroup {
-                // Create the server
-                val server = TaskServer(serverPort.intValue, database, adminPersonEntity)
-                server.start()
-
-                // Get the client from the server
-                client.value = server.getAdminClient()
+        // classes
+        Row(verticalAlignment = Alignment.CenterVertically) {
+            // description
+            Text(text = "Class", fontSize = 12.sp)
+            // separator
+            Spacer(modifier = Modifier.width(width = 12.dp))
+            // selector
+            Button(onClick = { areClassesExpanded.value = !areClassesExpanded.value }) {
+                // display the selected class, if selected
+                if (selectedClass.value != null) Text(text = selectedClass.value!!.name)
+                else Text(text = "<Not selected>")
+            }
+
+            // class selector
+            DropdownMenu(
+                expanded = areClassesExpanded.value,
+                onDismissRequest = { areClassesExpanded.value = false }
+            ) {
+                // TODO(Faraphel): student lists should be loaded from the database or a file
+                classes.value?.forEach { class_ ->
+                    DropdownMenuItem(
+                        text = { Text(class_.name) },
+                        onClick = {
+                            selectedClass.value = class_
+                            areClassesExpanded.value = false
+                        }
+                    )
+                }
             }
-        }) {
-            Text("Create")
         }
+
+        // check if a class is selected
+        if (selectedClass.value != null)
+        // button to create the server
+            Button(onClick = {
+                Thread {  // a thread is used for networking
+                    // Insert the admin in the database and get its id
+                    val adminPersonEntityId = database.personDao().insert(adminPersonEntityRaw.value!!)
+                    adminPersonEntity.value = database.personDao().getById(adminPersonEntityId)!!
+
+                    // Create a new session
+                    // TODO(Faraphel): name
+                    val sessionId = database.sessionDao().insert(
+                        SessionEntity(
+                            name="NOM",
+                            start= Instant.now(),
+                            classId=selectedClass.value!!.id,
+                        )
+                    )
+                    val session = database.sessionDao().getById(sessionId)!!
+
+                    // TODO(Faraphel): remove, this is a test function
+                    populateSubjectSessionPersonTest(database, session)
+
+                    // create a new Wi-Fi Direct group
+                    bwdManager.recreateGroup {
+                        // Create the server
+                        Log.i("room-server", "creating the server")
+                        val server = TaskServer(
+                            DEFAULT_SERVER_PORT,
+                            database,
+                            session,
+                            adminPersonEntity.value!!,
+                        )
+                        server.start()
+
+                        // Get the client from the server
+                        client.value = server.getAdminClient()
+                    }
+                }.start()
+            }) {
+                Text("Create")
+            }
     }
-    */
-}
+}
+
+
+/**
+ * Refresh the list of classes
+ */
+fun refreshClasses(database: TaskDatabase, classes: MutableState<List<ClassEntity>?>) {
+    classes.value = database.classDao().getAll()
+}

app/src/main/java/com/faraphel/tasks_valider/ui/screen/communication/selection.kt

@@ -46,7 +46,7 @@ fun CommunicationModeSelectionScreen(activity: Activity, database: TaskDatabase)
             CommunicationInternetSelectScreen(activity, database)
         }
         composable("wifi-p2p") {
-            CommunicationWifiP2pScreen(activity)
+            CommunicationWifiP2pScreen(activity, database)
         }
     }
 }