Added connection to teachers information api, formatted code, updated gradle

app/src/main/java/it/edu/cassandroferminervi/flowschool/remote/ApiService.kt

@@ -1,6 +1,7 @@
 package it.edu.cassandroferminervi.flowschool.remote
 
 import it.edu.cassandroferminervi.flowschool.remote.dto.LoginResult
+import it.edu.cassandroferminervi.flowschool.remote.dto.TeacherInfoResult
 import retrofit2.Response
 import retrofit2.http.Field
 import retrofit2.http.FormUrlEncoded
@@ -9,5 +10,23 @@ import retrofit2.http.POST
 interface ApiService {
     @FormUrlEncoded
     @POST("login.php")
-    suspend fun postLogin(@Field("username") code: String, @Field("password") password: String): Response<LoginResult>
+    suspend fun postLogin(
+        @Field("username") code: String,
+        @Field("password") password: String
+    ): Response<LoginResult>
+
+    @FormUrlEncoded
+    @POST("presenza.php")
+    suspend fun postPresence(@Field("token") token: String): Response<Boolean>
+
+    @FormUrlEncoded
+    @POST("lista.php")
+    suspend fun postTeacherList(@Field("token") token: String): Response<List<TeacherInfoResult>>
+
+    @FormUrlEncoded
+    @POST("ricerca.php")
+    suspend fun postTeacherInfo(
+        @Field("token") token: String,
+        @Field("profId") teacherId: Int
+    ): Response<TeacherInfoResult>
 }

app/src/main/java/it/edu/cassandroferminervi/flowschool/remote/dto/TeacherInfoResult.kt

@@ -0,0 +1,11 @@
+package it.edu.cassandroferminervi.flowschool.remote.dto
+
+import androidx.annotation.Keep
+
+@Keep
+data class TeacherInfoResult(
+    val codice: Int,
+    val nome: String,
+    val cognome: String,
+    val email: String?
+)

app/src/main/java/it/edu/cassandroferminervi/flowschool/screens/LoginScreen.kt

@@ -90,8 +90,8 @@ fun LoginScreen(navigator: DestinationsNavigator) {
 
                 val description = if (passwordVisible) "Nascondi password" else "Mostra password"
 
-                IconButton(onClick = {passwordVisible = !passwordVisible}){
+                IconButton(onClick = { passwordVisible = !passwordVisible }) {
-                    Icon(imageVector  = image, description)
+                    Icon(imageVector = image, description)
                 }
             },
             modifier = Modifier.fillMaxWidth()

app/src/main/java/it/edu/cassandroferminervi/flowschool/screens/PermissionScreen.kt

@@ -22,7 +22,7 @@ fun PermissionScreen(token: String) {
     if (cameraPermissionState.status.isGranted) {
         CameraScreen()
     } else {
-        Box (
+        Box(
             contentAlignment = Alignment.Center,
             modifier = Modifier.fillMaxSize()
         ) {

app/src/main/java/it/edu/cassandroferminervi/flowschool/screens/SearchingScreen.kt

@@ -1,129 +1,104 @@
 package it.edu.cassandroferminervi.flowschool.screens
 
+import android.widget.Toast
 import androidx.compose.foundation.ExperimentalFoundationApi
 import androidx.compose.foundation.background
+import androidx.compose.foundation.clickable
 import androidx.compose.foundation.layout.Column
 import androidx.compose.foundation.layout.fillMaxWidth
 import androidx.compose.foundation.layout.padding
 import androidx.compose.foundation.lazy.LazyColumn
 import androidx.compose.foundation.lazy.items
-import androidx.compose.material3.MaterialTheme
+import androidx.compose.material3.OutlinedTextField
 import androidx.compose.material3.Text
-import androidx.compose.material3.TextButton
-import androidx.compose.material3.TextField
 import androidx.compose.runtime.Composable
+import androidx.compose.runtime.LaunchedEffect
 import androidx.compose.runtime.getValue
 import androidx.compose.runtime.mutableStateOf
 import androidx.compose.runtime.remember
 import androidx.compose.runtime.setValue
 import androidx.compose.ui.Modifier
+import androidx.compose.ui.graphics.Color
+import androidx.compose.ui.platform.LocalContext
+import androidx.compose.ui.text.TextStyle
 import androidx.compose.ui.text.font.FontWeight
 import androidx.compose.ui.unit.dp
-import androidx.compose.ui.unit.sp
 import com.ramcosta.composedestinations.TeacherScreenDestination
 import com.ramcosta.composedestinations.annotation.Destination
 import com.ramcosta.composedestinations.navigation.DestinationsNavigator
+import it.edu.cassandroferminervi.flowschool.remote.RetrofitInstance
+import it.edu.cassandroferminervi.flowschool.remote.dto.TeacherInfoResult
+import kotlinx.coroutines.Dispatchers
+import kotlinx.coroutines.withContext
 
+@OptIn(ExperimentalFoundationApi::class)
 @Destination
 @Composable
-fun SearchingScreen(navigator: DestinationsNavigator, token: String) {
+fun SearchingScreen(
-    val teachers = listOf(
+    navigator: DestinationsNavigator,
-        "Mario Rossi",
+    token: String,
-        "Michele Verdi",
+) {
-        "Fabio Bianchi"
+    val context = LocalContext.current
-    ).groupBy {
+
-        it.first()
+    var professorList by remember { mutableStateOf<List<TeacherInfoResult>>(emptyList()) }
-    }.toSortedMap()
+    var searchText by remember { mutableStateOf("") }
-        .map {
+
-            Category(
+    LaunchedEffect(Unit) {
-                it.key.toString(),
+        val response = withContext(Dispatchers.IO) {
-                items = it.value
+            RetrofitInstance.api.postTeacherList(token)
-            )
         }
-    var filter by remember { mutableStateOf("") }
+        if (response.isSuccessful) {
+            professorList = response.body() ?: emptyList()
+        } else {
+            Toast.makeText(context, "Errore nel server", Toast.LENGTH_SHORT).show()
+        }
+    }
+
+    val groupedByLetter = professorList.sortedWith(compareBy({ it.cognome }, { it.nome }))
+        .groupBy { it.cognome.first().uppercaseChar() }
 
     Column {
-        TextField(
+        OutlinedTextField(
-            value = filter,
+            value = searchText,
-            onValueChange = { filter = it },
+            onValueChange = { searchText = it },
-            label = { Text("Cerca") },
+            label = { Text("Cerca professore") },
-            singleLine = true,
             modifier = Modifier
                 .fillMaxWidth()
                 .padding(16.dp)
         )
-        CategorizedLazyColumn(
+        LazyColumn {
-            categories = teachers,
+            groupedByLetter.forEach { (letter, professors) ->
-            navigator = navigator,
-            filter = filter
-        )
-    }
-}
-
-data class Category(
-    val name: String,
-    val items: List<String>
-)
-
-@Composable
-private fun CategoryHeader(
-    text: String,
-    modifier: Modifier = Modifier
-) {
-    Text(
-        text = text,
-        fontSize = 16.sp,
-        fontWeight = FontWeight.Bold,
-        modifier = modifier
-            .fillMaxWidth()
-            .background(MaterialTheme.colorScheme.primaryContainer)
-            .padding(16.dp)
-    )
-}
-
-@Composable
-private fun CategoryItem(
-    text: String,
-    navigator: DestinationsNavigator,
-    modifier: Modifier = Modifier
-) {
-    TextButton(onClick = {
-        navigator.navigate(TeacherScreenDestination("test"))
-    }) {
-        Text(
-            text = text,
-            fontSize = 14.sp,
-            modifier = modifier
-                .fillMaxWidth()
-                .background(MaterialTheme.colorScheme.background)
-                .padding(16.dp)
-        )
-    }
-}
-
-@OptIn(ExperimentalFoundationApi::class)
-@Composable
-private fun CategorizedLazyColumn(
-    categories: List<Category>,
-    navigator: DestinationsNavigator,
-    filter: String,
-    modifier: Modifier = Modifier
-) {
-    LazyColumn(modifier) {
-        categories.forEach { category ->
-            if (category.items.any {
-                    it.contains(filter, ignoreCase = true)
-                }) {
                 stickyHeader {
-                    CategoryHeader(category.name)
+                    Text(
+                        text = letter.toString(),
+                        style = TextStyle(fontWeight = FontWeight.Bold),
+                        modifier = Modifier
+                            .fillMaxWidth()
+                            .background(Color.LightGray)
+                            .padding(horizontal = 16.dp, vertical = 8.dp)
+                    )
+                }
+                items(professors.filter {
+                    it.nome.contains(searchText, ignoreCase = true) ||
+                            it.cognome.contains(searchText, ignoreCase = true)
+                }) { professor ->
+                    ProfessorItem(navigator = navigator, token = token, professor = professor)
                 }
-            }
-
-                items(items = category.items.filter {
-                it.contains(filter, ignoreCase = true)
-            }) { text ->
-                CategoryItem(text, navigator)
             }
         }
     }
 }
+
+@Composable
+fun ProfessorItem(navigator: DestinationsNavigator, token: String, professor: TeacherInfoResult) {
+    Column(
+        modifier = Modifier
+            .fillMaxWidth()
+            .clickable(onClick = {
+                navigator.navigate(TeacherScreenDestination(token, professor.codice))
+            })
+            .padding(16.dp)
+    ) {
+        Text(text = "${professor.nome} ${professor.cognome}")
+    }
+}

app/src/main/java/it/edu/cassandroferminervi/flowschool/screens/TeacherScreen.kt

@@ -1,23 +1,59 @@
 package it.edu.cassandroferminervi.flowschool.screens
 
+import android.widget.Toast
 import androidx.compose.foundation.layout.Arrangement
 import androidx.compose.foundation.layout.Column
 import androidx.compose.foundation.layout.fillMaxSize
 import androidx.compose.material3.Text
 import androidx.compose.runtime.Composable
+import androidx.compose.runtime.LaunchedEffect
+import androidx.compose.runtime.getValue
+import androidx.compose.runtime.mutableStateOf
+import androidx.compose.runtime.remember
+import androidx.compose.runtime.setValue
 import androidx.compose.ui.Alignment
 import androidx.compose.ui.Modifier
+import androidx.compose.ui.platform.LocalContext
 import com.ramcosta.composedestinations.annotation.Destination
+import it.edu.cassandroferminervi.flowschool.remote.RetrofitInstance
+import it.edu.cassandroferminervi.flowschool.remote.dto.TeacherInfoResult
+import kotlinx.coroutines.Dispatchers
+import kotlinx.coroutines.withContext
 
 @Destination
 @Composable
-fun TeacherScreen(codice: String) {
+fun TeacherScreen(token: String, code: Int) {
+    val context = LocalContext.current
+    var resBody by remember {
+        mutableStateOf(
+            TeacherInfoResult(
+                code,
+                "err",
+                "err",
+                null
+            )
+        )
+    }
+
+    LaunchedEffect(Unit) {
+        val response = withContext(Dispatchers.IO) {
+            RetrofitInstance.api.postTeacherInfo(token, code)
+        }
+
+        if (response.isSuccessful && response.body() != null) {
+            resBody = response.body()!!
+        } else {
+            Toast.makeText(context, "Errore nel server", Toast.LENGTH_SHORT).show()
+        }
+    }
+
     Column(
         horizontalAlignment = Alignment.CenterHorizontally,
         verticalArrangement = Arrangement.Center,
         modifier = Modifier.fillMaxSize()
     ) {
-        Text("Codice prof: $codice")
+        Text("Nome: ${resBody.nome}")
-        Text("Presente: si")
+        Text("Cognome: ${resBody.cognome}")
+        Text("Email: ${resBody.email}")
     }
 }

build.gradle.kts

@@ -1,5 +1,5 @@
 // Top-level build file where you can add configuration options common to all sub-projects/modules.
 plugins {
-    id("com.android.application") version "8.3.1" apply false
+    id("com.android.application") version "8.3.2" apply false
     id("org.jetbrains.kotlin.android") version "1.9.0" apply false
 }