Untitled

package com.example.senderos

import android.net.Uri
import android.os.Bundle
import androidx.activity.ComponentActivity
import androidx.activity.compose.setContent
import androidx.core.view.WindowCompat
import androidx.activity.compose.rememberLauncherForActivityResult
import androidx.activity.result.contract.ActivityResultContracts
import androidx.compose.foundation.Image
import androidx.compose.foundation.layout.Arrangement
import androidx.compose.foundation.layout.Box
import androidx.compose.foundation.layout.Column
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.Spacer
import androidx.compose.foundation.text.KeyboardOptions
import androidx.compose.material3.Button
import androidx.compose.material3.MaterialTheme
import androidx.compose.material3.OutlinedTextField
import androidx.compose.material3.Scaffold
import androidx.compose.material3.Text
import androidx.compose.material3.TextButton
import androidx.compose.runtime.Composable
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.layout.ContentScale
import androidx.compose.ui.text.input.ImeAction
import androidx.compose.ui.text.input.KeyboardType
import androidx.compose.ui.unit.dp
import androidx.navigation.NavHostController
import androidx.navigation.compose.NavHost
import androidx.navigation.compose.composable
import androidx.navigation.compose.rememberNavController
import coil.compose.rememberAsyncImagePainter
import com.example.senderos.ui.theme.SenderosTheme

// Importa la clase Routes (ya definida en Routes.kt)
import com.example.senderos.Routes

// Objeto global para almacenar datos del perfil (solo para demostración)
object ProfileState {
    var name by mutableStateOf("")
    var description by mutableStateOf("")
    var imageUri by mutableStateOf<Uri?>(null)
}

class MainActivity : ComponentActivity() {
    override fun onCreate(savedInstanceState: Bundle?) {
        super.onCreate(savedInstanceState)
        // Habilita edge-to-edge usando WindowCompat
        WindowCompat.setDecorFitsSystemWindows(window, false)
        setContent {
            SenderosTheme {
                Scaffold(modifier = Modifier.fillMaxSize()) { innerPadding ->
                    Box(modifier = Modifier.padding(innerPadding)) {
                        AppNavigator()
                    }
                }
            }
        }
    }
}

@Composable
fun AppNavigator() {
    val navController = rememberNavController()
    NavHost(navController = navController, startDestination = Routes.Login.route) {
        composable(Routes.Login.route) { LoginScreen(navController) }
        composable(Routes.Register.route) { RegisterScreen(navController) }
        composable(Routes.Profile.route) { ProfileScreen(navController) }
        composable(Routes.ProfileDisplay.route) { ProfileDisplayScreen(navController) }
    }
}

@Composable
fun LoginScreen(navController: NavHostController) {
    var email by remember { mutableStateOf("") }
    var password by remember { mutableStateOf("") }

    Column(
        modifier = Modifier
            .fillMaxSize()
            .padding(20.dp),
        verticalArrangement = Arrangement.Center,
        horizontalAlignment = Alignment.CenterHorizontally
    ) {
        Text("Iniciar sesión", style = MaterialTheme.typography.headlineLarge)
        Spacer(modifier = Modifier.height(16.dp))
        OutlinedTextField(
            value = email,
            onValueChange = { email = it },
            label = { Text("Correo electrónico") },
            singleLine = true,
            keyboardOptions = KeyboardOptions(
                keyboardType = KeyboardType.Email,
                imeAction = ImeAction.Next
            ),
            modifier = Modifier.fillMaxWidth(0.9f)
        )
        Spacer(modifier = Modifier.height(16.dp))
        OutlinedTextField(
            value = password,
            onValueChange = { password = it },
            label = { Text("Contraseña") },
            singleLine = true,
            keyboardOptions = KeyboardOptions(
                keyboardType = KeyboardType.Password,
                imeAction = ImeAction.Done
            ),
            modifier = Modifier.fillMaxWidth(0.9f)
        )
        Spacer(modifier = Modifier.height(24.dp))
        Button(
            onClick = {
                // Simula un login exitoso y navega a la pantalla de edición de perfil
                navController.navigate(Routes.Profile.route)
            },
            modifier = Modifier.fillMaxWidth(0.9f)
        ) {
            Text("Ingresar")
        }
        Spacer(modifier = Modifier.height(16.dp))
        TextButton(onClick = { navController.navigate(Routes.Register.route) }) {
            Text("¿No tienes una cuenta? Regístrate")
        }
    }
}

@Composable
fun RegisterScreen(navController: NavHostController) {
    var email by remember { mutableStateOf("") }
    var password by remember { mutableStateOf("") }
    var confirmPassword by remember { mutableStateOf("") }
    var errorMessage by remember { mutableStateOf("") }

    Column(
        modifier = Modifier
            .fillMaxSize()
            .padding(20.dp),
        verticalArrangement = Arrangement.Center,
        horizontalAlignment = Alignment.CenterHorizontally
    ) {
        Text("Registro", style = MaterialTheme.typography.headlineLarge)
        Spacer(modifier = Modifier.height(16.dp))
        OutlinedTextField(
            value = email,
            onValueChange = { email = it },
            label = { Text("Correo electrónico") },
            singleLine = true,
            keyboardOptions = KeyboardOptions(
                keyboardType = KeyboardType.Email,
                imeAction = ImeAction.Next
            ),
            modifier = Modifier.fillMaxWidth(0.9f)
        )
        Spacer(modifier = Modifier.height(16.dp))
        OutlinedTextField(
            value = password,
            onValueChange = { password = it },
            label = { Text("Contraseña") },
            singleLine = true,
            keyboardOptions = KeyboardOptions(
                keyboardType = KeyboardType.Password,
                imeAction = ImeAction.Next
            ),
            modifier = Modifier.fillMaxWidth(0.9f)
        )
        Spacer(modifier = Modifier.height(16.dp))
        OutlinedTextField(
            value = confirmPassword,
            onValueChange = { confirmPassword = it },
            label = { Text("Confirmar contraseña") },
            singleLine = true,
            keyboardOptions = KeyboardOptions(
                keyboardType = KeyboardType.Password,
                imeAction = ImeAction.Done
            ),
            modifier = Modifier.fillMaxWidth(0.9f)
        )
        Spacer(modifier = Modifier.height(24.dp))
        Button(
            onClick = {
                if (email.isNotBlank() && password.isNotBlank() && password == confirmPassword) {
                    // Simula un registro exitoso y vuelve a la pantalla de login
                    navController.popBackStack()
                } else {
                    errorMessage = "Verifica que los campos estén completos y que las contraseñas coincidan."
                }
            },
            modifier = Modifier.fillMaxWidth(0.9f)
        ) {
            Text("Registrarse")
        }
        Spacer(modifier = Modifier.height(16.dp))
        if (errorMessage.isNotEmpty()) {
            Text(text = errorMessage, color = MaterialTheme.colorScheme.error)
            Spacer(modifier = Modifier.height(16.dp))
        }
        TextButton(onClick = { navController.popBackStack() }) {
            Text("Volver a iniciar sesión")
        }
    }
}

@Composable
fun ProfileScreen(navController: NavHostController) {
    // Pantalla para editar (crear) el perfil
    var name by remember { mutableStateOf("") }
    var description by remember { mutableStateOf("") }
    var imageUri by remember { mutableStateOf<Uri?>(null) }

    // Launcher para seleccionar imagen desde la galería
    val launcher = rememberLauncherForActivityResult(
        contract = ActivityResultContracts.GetContent()
    ) { uri: Uri? ->
        imageUri = uri
    }

    Column(
        modifier = Modifier
            .fillMaxSize()
            .padding(20.dp),
        verticalArrangement = Arrangement.Center,
        horizontalAlignment = Alignment.CenterHorizontally
    ) {
        Text("Editar Perfil", style = MaterialTheme.typography.headlineLarge)
        Spacer(modifier = Modifier.height(16.dp))
        OutlinedTextField(
            value = name,
            onValueChange = { name = it },
            label = { Text("Nombre") },
            singleLine = true,
            modifier = Modifier.fillMaxWidth(0.9f)
        )
        Spacer(modifier = Modifier.height(16.dp))
        OutlinedTextField(
            value = description,
            onValueChange = { description = it },
            label = { Text("Descripción") },
            modifier = Modifier.fillMaxWidth(0.9f)
        )
        Spacer(modifier = Modifier.height(16.dp))
        Button(
            onClick = { launcher.launch("image/*") },
            modifier = Modifier.fillMaxWidth(0.9f)
        ) {
            Text("Seleccionar foto")
        }
        Spacer(modifier = Modifier.height(16.dp))
        imageUri?.let { uri ->
            Image(
                painter = rememberAsyncImagePainter(uri),
                contentDescription = "Foto de perfil",
                modifier = Modifier
                    .fillMaxWidth(0.9f)
                    .height(200.dp),
                contentScale = ContentScale.Crop
            )
            Spacer(modifier = Modifier.height(16.dp))
        }
        Button(
            onClick = {
                // Guarda los datos en el objeto global (solo para demostración)
                ProfileState.name = name
                ProfileState.description = description
                ProfileState.imageUri = imageUri
                // Navega a la pantalla de visualización del perfil (sin botón de guardar)
                navController.navigate(Routes.ProfileDisplay.route)
            },
            modifier = Modifier.fillMaxWidth(0.9f)
        ) {
            Text("Guardar cambios")
        }
    }
}

@Composable
fun ProfileDisplayScreen(navController: NavHostController) {
    // Pantalla para mostrar el perfil guardado (sin botón de guardar)
    Column(
        modifier = Modifier
            .fillMaxSize()
            .padding(20.dp),
        verticalArrangement = Arrangement.Center,
        horizontalAlignment = Alignment.CenterHorizontally
    ) {
        Text("Perfil Guardado", style = MaterialTheme.typography.headlineLarge)
        Spacer(modifier = Modifier.height(16.dp))
        Text("Nombre: ${ProfileState.name}")
        Spacer(modifier = Modifier.height(8.dp))
        Text("Descripción: ${ProfileState.description}")
        Spacer(modifier = Modifier.height(16.dp))
        ProfileState.imageUri?.let { uri ->
            Image(
                painter = rememberAsyncImagePainter(uri),
                contentDescription = "Foto de perfil",
                modifier = Modifier
                    .fillMaxWidth(0.9f)
                    .height(200.dp),
                contentScale = ContentScale.Crop
            )
        }
    }
}