LoginScreen

app/src/main/java/in/sminnovations/attendanceapp/screens/login/ui/login.kt

@@ -1,14 +1,22 @@
 package `in`.sminnovations.attendanceapp.screens.login.ui
 
 import androidx.compose.foundation.Image
+import androidx.compose.foundation.layout.Box
 import androidx.compose.foundation.layout.Column
 import androidx.compose.foundation.layout.Spacer
+import androidx.compose.foundation.layout.aspectRatio
+import androidx.compose.foundation.layout.fillMaxHeight
 import androidx.compose.foundation.layout.fillMaxSize
 import androidx.compose.foundation.layout.fillMaxWidth
 import androidx.compose.foundation.layout.height
 import androidx.compose.foundation.layout.padding
 import androidx.compose.foundation.layout.size
+import androidx.compose.foundation.rememberScrollState
 import androidx.compose.foundation.text.KeyboardOptions
+import androidx.compose.foundation.verticalScroll
+import androidx.compose.material.icons.Icons
+import androidx.compose.material.icons.filled.Lock
+import androidx.compose.material.icons.filled.Person
 import androidx.compose.material3.Button
 import androidx.compose.material3.CircularProgressIndicator
 import androidx.compose.material3.Icon
@@ -36,23 +44,23 @@ import androidx.compose.ui.unit.dp
 import androidx.compose.ui.unit.sp
 import androidx.hilt.navigation.compose.hiltViewModel
 import `in`.sminnovations.attendanceapp.R
+import `in`.sminnovations.attendanceapp.screens.login.ui.componets.OutlinedTextFieldWithError
 import `in`.sminnovations.attendanceapp.screens.login.viewModel.LoginViewModel
 import kotlinx.coroutines.launch
-
 @Composable
 fun LoginScreen(
     loginViewModel: LoginViewModel = hiltViewModel(),
     onLoginSuccess: () -> Unit
 ) {
     val coroutineScope = rememberCoroutineScope()
-    val isLoading by loginViewModel.isLoading.collectAsState()
+    val isPasswordError by loginViewModel.isPasswordError.collectAsState()
+    val isUserIdError by loginViewModel.isIdError.collectAsState()
     val isLoggedIn by loginViewModel.isLoggedIn.collectAsState()
 
-    var userId by remember { mutableStateOf(TextFieldValue("")) }
-    var password by remember { mutableStateOf(TextFieldValue("")) }
+    var userId by remember { mutableStateOf("") }
+    var password by remember { mutableStateOf("") }
     var passwordVisible by remember { mutableStateOf(false) }
 
-    // Navigate to the main screen if the user is already logged in
     LaunchedEffect(isLoggedIn) {
         if (isLoggedIn) onLoginSuccess()
     }
@@ -60,81 +68,88 @@ fun LoginScreen(
     Column(
         modifier = Modifier
             .fillMaxSize()
-            .padding(26.dp),
+            .verticalScroll(rememberScrollState())
+            .padding(horizontal = 16.dp, vertical = 24.dp),
         horizontalAlignment = Alignment.CenterHorizontally
     ) {
         Text(text = "Attendance App", style = MaterialTheme.typography.headlineLarge)
-        Spacer(modifier = Modifier.height(50.dp))
+        Spacer(modifier = Modifier.height(40.dp))
 
-        // Logo Image
         Image(
             painter = painterResource(id = R.drawable.smi_logo),
             contentDescription = "App Logo",
-            alignment = Alignment.TopCenter
+            modifier = Modifier
+                .fillMaxWidth(0.5f)
+                .aspectRatio(1f)
+                .padding(8.dp)
         )
 
-        Spacer(modifier = Modifier.height(100.dp))
+        Spacer(modifier = Modifier.height(40.dp))
         Text(text = "Credentials", style = MaterialTheme.typography.headlineMedium)
 
-        Spacer(modifier = Modifier.height(20.dp))
+        Spacer(modifier = Modifier.weight(1f))
 
-        // User ID TextField
-        OutlinedTextField(
+        OutlinedTextFieldWithError(
             value = userId,
             onValueChange = { userId = it },
-            label = { Text("User ID") },
+            label = "User ID",
+            isError = isUserIdError,
+            errorMessage = "Please enter a valid User ID",
             modifier = Modifier.fillMaxWidth(),
-            keyboardOptions = KeyboardOptions.Default.copy(imeAction = ImeAction.Next)
-        )
-
-        Spacer(modifier = Modifier.height(30.dp))
-
-        // Password TextField
-        OutlinedTextField(
-            value = password,
-            onValueChange = { password = it },
-            label = { Text("Password") },
-            modifier = Modifier.fillMaxWidth(),
-            visualTransformation = if (passwordVisible) VisualTransformation.None else PasswordVisualTransformation(),
-            keyboardOptions = KeyboardOptions.Default.copy(imeAction = ImeAction.Done),
-            trailingIcon = {
-                val icon = if (passwordVisible) {
-                    painterResource(id = R.drawable.baseline_visibility_24)
-                } else {
-                    painterResource(id = R.drawable.baseline_visibility_off_24)
-                }
-                IconButton(onClick = { passwordVisible = !passwordVisible }) {
-                    Icon(painter = icon, contentDescription = "Toggle Password Visibility")
-                }
+            leadingIcon = {
+                Icon(
+                    imageVector = Icons.Default.Person,
+                    contentDescription = "User Icon"
+                )
             }
         )
 
-        Spacer(modifier = Modifier.height(60.dp))
+        Spacer(modifier = Modifier.height(16.dp))
+
+        OutlinedTextFieldWithError(
+            value = password,
+            onValueChange = { password = it },
+            label = "Password",
+            isError = isPasswordError,
+            errorMessage = "Please enter a valid password",
+            modifier = Modifier.fillMaxWidth(),
+            leadingIcon = {
+                Icon(
+                    imageVector = Icons.Default.Lock,
+                    contentDescription = "Password Icon"
+                )
+            },
+            trailingIcon = {
+                IconButton(onClick = { passwordVisible = !passwordVisible }) {
+                    Icon(
+                        painter = painterResource(
+                            id = if (passwordVisible) R.drawable.baseline_visibility_24 else R.drawable.baseline_visibility_off_24
+                        ),
+                        contentDescription = if (passwordVisible) "Hide Password" else "Show Password"
+                    )
+                }
+            },
+            visualTransformation = if (passwordVisible) VisualTransformation.None else PasswordVisualTransformation()
+        )
+
+        Spacer(modifier = Modifier.height(24.dp))
 
-        // Login Button
         Button(
             onClick = {
                 coroutineScope.launch {
-                    loginViewModel.login(userId.text, password.text, onLoginSuccess)
+                    loginViewModel.login(userId, password, onLoginSuccess)
                 }
             },
             modifier = Modifier
                 .fillMaxWidth()
                 .height(50.dp),
-            enabled = !isLoading
         ) {
-            if (isLoading) {
-                CircularProgressIndicator(
-                    color = Color.White,
-                    modifier = Modifier.size(24.dp),
-                    strokeWidth = 2.dp
-                )
-            } else {
-                Text(
-                    text = "Login",
-                    fontSize = 20.sp
-                )
-            }
+            Text(
+                text = "Login",
+                fontSize = 20.sp
+            )
         }
+
+        Spacer(modifier = Modifier.weight(1f))
     }
-}
+}

app/src/main/java/in/sminnovations/attendanceapp/screens/login/viewModel/loginVM.kt

@@ -1,30 +1,35 @@
 package `in`.sminnovations.attendanceapp.screens.login.viewModel
 
-// File: LoginViewModel.kt
-
-
 import androidx.lifecycle.ViewModel
 import androidx.lifecycle.viewModelScope
+import com.google.firebase.firestore.DocumentSnapshot
+import com.google.firebase.firestore.FirebaseFirestore
 import dagger.hilt.android.lifecycle.HiltViewModel
+import `in`.sminnovations.attendanceapp.data.dataStore.Employee
 import `in`.sminnovations.attendanceapp.screens.login.data.LoginData
 import `in`.sminnovations.attendanceapp.screens.login.data.LoginDataStore
 import kotlinx.coroutines.flow.MutableStateFlow
 import kotlinx.coroutines.flow.asStateFlow
 import kotlinx.coroutines.launch
-import kotlinx.coroutines.delay
+import kotlinx.coroutines.tasks.await
 import javax.inject.Inject
 
 @HiltViewModel
 class LoginViewModel @Inject constructor(
-    private val loginDataStore: LoginDataStore
+    private val loginDataStore: LoginDataStore, private val firebaseFirestore: FirebaseFirestore
 ) : ViewModel() {
 
-    private val _isLoading = MutableStateFlow(false)
-    val isLoading = _isLoading.asStateFlow()
+    private val _isPasswordError = MutableStateFlow(false)
+    val isPasswordError = _isPasswordError.asStateFlow()
+
+
+    private val _isIDError = MutableStateFlow(false)
+    val isIdError = _isIDError.asStateFlow()
 
     private val _isLoggedIn = MutableStateFlow(false)
     val isLoggedIn = _isLoggedIn.asStateFlow()
 
+
     private val _loginData = MutableStateFlow(LoginData("", ""))
     val loginData = _loginData.asStateFlow()
 
@@ -41,20 +46,35 @@ class LoginViewModel @Inject constructor(
                 }
             }
         }
+
     }
 
     fun login(userId: String, password: String, onLoginSuccess: () -> Unit) {
         viewModelScope.launch {
-            _isLoading.value = true
-            delay(1000) // Simulate network call
+            firebaseFirestore.collection("employees").whereEqualTo("Id", userId).get()
+                .addOnSuccessListener {
+                    if (!it.isEmpty) {
+                        _isIDError.value = false
+                        for (doc in it) {
+                            if (password == doc.getString("Password")) {
+                                viewModelScope.launch {
+                                    loginDataStore.saveLoginData(userId, password)
+                                    _isLoggedIn.value = true
+                                    onLoginSuccess()
 
-            if (userId == "1" && password == "2") {
-                loginDataStore.saveLoginData(userId, password)
-                _isLoggedIn.value = true
-                onLoginSuccess()
-            }
-            _isLoading.value = false
+                                }
+                            } else {
+                                _isPasswordError.value = true
+                            }
+                        }
+                    } else {
+                        _isIDError.value = true
+                    }
+                }.addOnFailureListener {
+                    _isIDError.value = true
+                }
         }
+
     }
 
     fun logout() {
@@ -63,4 +83,31 @@ class LoginViewModel @Inject constructor(
             _isLoggedIn.value = false
         }
     }
+
+
+    private fun DocumentSnapshot.toEmployee(): Employee {
+        return Employee(
+            androidID = getString("AndroidID") ?: "",
+            dateOfJoining = getString("DateOfJoining") ?: "",
+            dateOfLeaving = getString("DateOfLeaving") ?: "",
+            designation = getString("Designation") ?: "Android Developer",
+            employeeStatus = getBoolean("EmployeeStatus") ?: true,
+            id = getString("Id") ?: "",
+            name = getString("Name") ?: "",
+            password = getString("Password") ?: "",
+            photo = getString("Photo") ?: "",
+            dateOfBirth = getString("dateOfBirth") ?: ""
+        )
+    }
+
+    suspend fun fetchEmployeeData(employeeId: String): Employee? {
+        val db = FirebaseFirestore.getInstance()
+        return try {
+            val document = db.collection("employees").document(employeeId).get().await()
+            document.toEmployee()
+        } catch (e: Exception) {
+            e.printStackTrace()
+            null
+        }
+    }
 }