package com.swiswiswift.swiswikotlin

import android.os.Bundle
import androidx.activity.ComponentActivity
import androidx.activity.compose.setContent
import androidx.activity.enableEdgeToEdge
import androidx.compose.foundation.layout.Arrangement
import androidx.compose.foundation.layout.Column
import androidx.compose.foundation.layout.fillMaxSize
import androidx.compose.foundation.layout.padding
import androidx.compose.material.icons.Icons
import androidx.compose.material.icons.filled.Email
import androidx.compose.material.icons.filled.Home
import androidx.compose.material.icons.filled.Settings
import androidx.compose.material.icons.outlined.Email
import androidx.compose.material.icons.outlined.Home
import androidx.compose.material.icons.outlined.Settings
import androidx.compose.material3.Icon
import androidx.compose.material3.NavigationBar
import androidx.compose.material3.NavigationBarItem
import androidx.compose.material3.Scaffold
import androidx.compose.material3.Text
import androidx.compose.ui.Alignment
import androidx.compose.ui.Modifier
import androidx.navigation.NavGraph.Companion.findStartDestination
import androidx.navigation.compose.currentBackStackEntryAsState
import androidx.navigation.compose.NavHost
import androidx.navigation.compose.composable
import androidx.navigation.compose.rememberNavController
import androidx.compose.material3.MaterialTheme


class MainActivity : ComponentActivity() {
    override fun onCreate(savedInstanceState: Bundle?) {
        super.onCreate(savedInstanceState)
        enableEdgeToEdge()
        setContent {
            MaterialTheme {
                val navController = rememberNavController()
                val bottomNavigationItems = listOf(
                    BottomNavigationItem(
                        id = Route.FIRST,
                        title = "First",
                        selectedIcon = Icons.Filled.Home,
                        unselectedIcon = Icons.Outlined.Home,
                    ),
                    BottomNavigationItem(
                        id = Route.SECOND,
                        title = "Second",
                        selectedIcon = Icons.Filled.Email,
                        unselectedIcon = Icons.Outlined.Email,
                    ),
                    BottomNavigationItem(
                        id = Route.THIRD,
                        title = "Third",
                        selectedIcon = Icons.Filled.Settings,
                        unselectedIcon = Icons.Outlined.Settings,
                    ),
                )

                val currentRoute = navController.currentBackStackEntryAsState()
                    .value?.destination?.route

                Scaffold(
                    bottomBar = {
                        NavigationBar {
                            bottomNavigationItems.forEach { item ->
                                NavigationBarItem(
                                    selected = currentRoute == item.id.name,
                                    onClick = {
                                        navController.navigate(item.id.name) {
                                            popUpTo(navController.graph.findStartDestination().id) {
                                                saveState = true
                                            }
                                            launchSingleTop = true
                                            restoreState = true
                                        }
                                    },
                                    label = {
                                        Text(text = item.title)
                                    },
                                    alwaysShowLabel = false,
                                    icon = {
                                        Icon(
                                            imageVector = if (currentRoute == item.id.name) {
                                                item.selectedIcon
                                            } else {
                                                item.unselectedIcon
                                            },
                                            contentDescription = item.title
                                        )
                                    }
                                )
                            }
                        }
                    },
                    modifier = Modifier.fillMaxSize()
                ) { innerPadding ->
                    NavHost(
                        navController = navController,
                        startDestination = Route.FIRST.name
                    ) {
                        composable(Route.FIRST.name) {
                            Column(
                                modifier = Modifier
                                    .fillMaxSize()
                                    .padding(innerPadding),
                                horizontalAlignment = Alignment.CenterHorizontally,
                                verticalArrangement = Arrangement.Center
                            ) {
                                Text(text = "First Page")
                            }
                        }
                        composable(Route.SECOND.name) {
                            Column(
                                modifier = Modifier
                                    .fillMaxSize()
                                    .padding(innerPadding),
                                horizontalAlignment = Alignment.CenterHorizontally,
                                verticalArrangement = Arrangement.Center
                            ) {
                                Text(text = "Second Page")
                            }
                        }
                        composable(Route.THIRD.name) {
                            Column(
                                modifier = Modifier
                                    .fillMaxSize()
                                    .padding(innerPadding),
                                horizontalAlignment = Alignment.CenterHorizontally,
                                verticalArrangement = Arrangement.Center
                            ) {
                                Text(text = "Third Page")
                            }
                        }
                    }
                }
            }
        }
    }
}