package com.aiosman.riderpro

import ModificationListScreen
import android.os.Bundle
import androidx.activity.ComponentActivity
import androidx.activity.compose.setContent
import androidx.activity.enableEdgeToEdge
import androidx.compose.animation.AnimatedContentScope
import androidx.compose.animation.ExperimentalSharedTransitionApi
import androidx.compose.animation.SharedTransitionLayout
import androidx.compose.animation.SharedTransitionScope
import androidx.compose.animation.animateColorAsState
import androidx.compose.animation.core.tween
import androidx.compose.foundation.background
import androidx.compose.foundation.layout.Arrangement
import androidx.compose.foundation.layout.Box
import androidx.compose.foundation.layout.Column
import androidx.compose.foundation.layout.WindowInsets
import androidx.compose.foundation.layout.fillMaxSize
import androidx.compose.foundation.layout.height
import androidx.compose.foundation.layout.navigationBars
import androidx.compose.foundation.layout.padding
import androidx.compose.foundation.layout.size
import androidx.compose.foundation.layout.statusBarsPadding
import androidx.compose.material3.Icon
import androidx.compose.material3.NavigationBar
import androidx.compose.material3.NavigationBarItem
import androidx.compose.material3.NavigationBarItemColors
import androidx.compose.material3.Scaffold
import androidx.compose.material3.Surface
import androidx.compose.runtime.Composable
import androidx.compose.runtime.CompositionLocalProvider
import androidx.compose.runtime.LaunchedEffect
import androidx.compose.runtime.compositionLocalOf
import androidx.compose.runtime.getValue
import androidx.compose.ui.Alignment
import androidx.compose.ui.Modifier
import androidx.compose.ui.graphics.Color
import androidx.compose.ui.platform.LocalDensity
import androidx.compose.ui.tooling.preview.Preview
import androidx.compose.ui.unit.dp
import androidx.core.view.WindowCompat
import androidx.navigation.NavHostController
import androidx.navigation.NavType
import androidx.navigation.compose.NavHost
import androidx.navigation.compose.composable
import androidx.navigation.compose.currentBackStackEntryAsState
import androidx.navigation.compose.rememberNavController
import androidx.navigation.navArgument
import com.aiosman.riderpro.ui.theme.RiderProTheme
import com.google.accompanist.systemuicontroller.rememberSystemUiController
import com.google.android.libraries.places.api.Places

class MainActivity : ComponentActivity() {

    override fun onCreate(savedInstanceState: Bundle?) {
        super.onCreate(savedInstanceState)
        WindowCompat.setDecorFitsSystemWindows(window, false)
        if (!Places.isInitialized()) {
            Places.initialize(applicationContext, "AIzaSyDpgLDH1-SECw_pdjJq_msynq1XrxwgKVI")
        }
        enableEdgeToEdge()
        setContent {
            Navigation()
        }
    }
}

val LocalNavController = compositionLocalOf<NavHostController> {
    error("NavController not provided")
}

@OptIn(ExperimentalSharedTransitionApi::class)
val LocalSharedTransitionScope = compositionLocalOf<SharedTransitionScope> {
    error("SharedTransitionScope not provided")
}

val LocalAnimatedContentScope = compositionLocalOf<AnimatedContentScope> {
    error("AnimatedContentScope not provided")
}

@OptIn(ExperimentalSharedTransitionApi::class)
@Composable
fun NavigationController(navController: NavHostController) {
    val navigationBarHeight = with(LocalDensity.current) {
        WindowInsets.navigationBars.getBottom(this).toDp()
    }

    NavHost(
        navController = navController,
        startDestination = "Index",
    ) {
        composable(route = "Index") {
            CompositionLocalProvider(
                LocalAnimatedContentScope provides this,
            ) {
                ScaffoldWithNavigationBar2()
            }
        }
        composable(route = "ProfileTimeline") {
            GalleryPage()
        }
        composable(route = "LocationDetail") {
            Box(
                modifier = Modifier.padding(bottom = navigationBarHeight)
            ) {
                LocationDetail()
            }
        }
        composable(route = "OfficialPhoto") {
            OfficialGalleryPage()
        }
        composable(route = "OfficialPhotographer") {
            OfficialPhotographer()
        }
        composable(
            route = "Post/{id}",
            arguments = listOf(navArgument("id") { type = NavType.StringType })
        ) { backStackEntry ->
            CompositionLocalProvider(
                LocalAnimatedContentScope provides this,
            ) {
                val id = backStackEntry.arguments?.getString("id")
                PostPage(
                    id!!
                )
            }
        }
        composable(route = "ModificationList") {
            ModificationListScreen()
        }
        composable(route = "MyMessage") {
            NotificationsScreen()
        }
        composable(route = "Comments") {
            CommentsScreen()
        }
        composable(route = "Likes") {
            LikePage()
        }
        composable(route = "Followers") {
            FollowerPage()
        }
        composable(route = "NewPost") {
            NewPostScreen()
        }
        composable(route = "EditModification") {
            Box(
                modifier = Modifier.padding(top = 64.dp)
            ) {
                EditModification()
            }
        }
    }


}

@OptIn(ExperimentalSharedTransitionApi::class)
@Composable
fun Navigation() {
    val navController = rememberNavController()
    SharedTransitionLayout {
        CompositionLocalProvider(
            LocalNavController provides navController,
            LocalSharedTransitionScope provides this@SharedTransitionLayout,
        ) {
            Box {
                NavigationController(navController = navController)
            }
        }
    }
}

// 用于带导航栏的路由的可复用 composable
@Composable
fun ScaffoldWithNavigationBar(
    navController: NavHostController,
    content: @Composable () -> Unit
) {
    val navigationBarHeight = with(LocalDensity.current) {
        WindowInsets.navigationBars.getBottom(this).toDp()
    }
    val item = listOf(
        NavigationItem.Home,
        NavigationItem.Street,
        NavigationItem.Add,
        NavigationItem.Message,
        NavigationItem.Profile
    )
    Scaffold(
        modifier = Modifier.statusBarsPadding(),
        bottomBar = {
            NavigationBar(
                modifier = Modifier.height(56.dp + navigationBarHeight),
                containerColor = Color.Black
            ) {
                val navBackStackEntry by navController.currentBackStackEntryAsState()
                val currentRoute = navBackStackEntry?.destination?.route
                val systemUiController = rememberSystemUiController()
                item.forEach { it ->
                    val isSelected = currentRoute == it.route
                    val iconTint by animateColorAsState(
                        targetValue = if (isSelected) Color.Red else Color.White,
                        animationSpec = tween(durationMillis = 250), label = ""
                    )
                    NavigationBarItem(
                        selected = currentRoute == it.route,
                        onClick = {
                            // Check if the current route is not the same as the tab's route to avoid unnecessary navigation
                            if (currentRoute != it.route) {
                                navController.navigate(it.route) {
                                    // Avoid creating a new layer on top of the navigation stack
                                    launchSingleTop = true
                                    // Attempt to pop up to the existing instance of the destination, if present
                                    popUpTo(navController.graph.startDestinationId) {
                                        saveState = true
                                    }
                                    // Restore state when navigating back to the composable
                                    restoreState = true
                                }
                            }
                            // Additional logic for system UI color changes
                            when (it.route) {
                                NavigationItem.Add.route -> {
                                    systemUiController.setSystemBarsColor(color = Color.Black)
                                }

                                NavigationItem.Message.route -> {
                                    systemUiController.setSystemBarsColor(color = Color.Black)
                                }

                                else -> {
                                    systemUiController.setSystemBarsColor(color = Color.Transparent)
                                }
                            }
                        },
                        colors = NavigationBarItemColors(
                            selectedTextColor = Color.Red,
                            selectedIndicatorColor = Color.Black,
                            unselectedTextColor = Color.Red,
                            disabledIconColor = Color.Red,
                            disabledTextColor = Color.Red,
                            selectedIconColor = iconTint,
                            unselectedIconColor = iconTint,
                        ),
                        icon = {
                            Icon(
                                modifier = Modifier.size(24.dp),
                                imageVector = if (currentRoute == it.route) it.selectedIcon() else it.icon(),
                                contentDescription = null,
                                tint = iconTint
                            )
                        }
                    )
                }

            }
        }
    ) { innerPadding ->
        Box(
            modifier = Modifier.padding(innerPadding)
        ) {
            content()
        }
    }
}

@OptIn(ExperimentalSharedTransitionApi::class)
@Composable
fun ScaffoldWithNavigationBar2() {
    val model = IndexViewModel
    val navigationBarHeight = with(LocalDensity.current) {
        WindowInsets.navigationBars.getBottom(this).toDp()
    }
    val item = listOf(
        NavigationItem.Home,
        NavigationItem.Street,
        NavigationItem.Add,
        NavigationItem.Message,
        NavigationItem.Profile
    )
    val systemUiController = rememberSystemUiController()

    LaunchedEffect(Unit) {
        systemUiController.setNavigationBarColor(Color.Black)
    }
    Scaffold(
        bottomBar = {
            NavigationBar(
                modifier = Modifier.height(56.dp + navigationBarHeight),
                containerColor = Color.Black
            ) {
                item.forEachIndexed { idx, it ->
                    val isSelected = model.tabIndex == idx
                    val iconTint by animateColorAsState(
                        targetValue = if (isSelected) Color.Red else Color.White,
                        animationSpec = tween(durationMillis = 250), label = ""
                    )
                    NavigationBarItem(
                        selected = isSelected,
                        onClick = {
                            model.tabIndex = idx
//                            if (it.route == NavigationItem.Add.route || it.route == NavigationItem.Message.route) {
//                                systemUiController.setStatusBarColor(Color.Black, darkIcons = false)
//                            } else {
//                                systemUiController.setStatusBarColor(
//                                    Color.Transparent,
//                                    darkIcons = true
//                                )
//                            }
                        },
                        colors = NavigationBarItemColors(
                            selectedTextColor = Color.Red,
                            selectedIndicatorColor = Color.Black,
                            unselectedTextColor = Color.Red,
                            disabledIconColor = Color.Red,
                            disabledTextColor = Color.Red,
                            selectedIconColor = iconTint,
                            unselectedIconColor = iconTint,
                        ),
                        icon = {
                            Icon(
                                modifier = Modifier.size(24.dp),
                                imageVector = if (isSelected) it.selectedIcon() else it.icon(),
                                contentDescription = null,
                                tint = iconTint
                            )
                        }
                    )
                }

            }
        }
    ) { innerPadding ->
        Box(
            modifier = Modifier
        ) {
            when (model.tabIndex) {
                0 -> Box(
                    modifier = Modifier.padding(innerPadding)
                ) {
                    Home()
                }

                1 -> Street()
                2 -> Box(
                    modifier = Modifier.padding(innerPadding)
                ) { Add() }

                3 -> Box(
                    modifier = Modifier.padding(innerPadding)
                ) { Video() }

                4 -> Box(
                    modifier = Modifier.padding(innerPadding)
                ) { Profile() }
            }
        }
    }
}

@Composable
fun Home() {
    val systemUiController = rememberSystemUiController()
    LaunchedEffect(Unit) {
        systemUiController.setStatusBarColor(Color.Transparent, darkIcons = true)
    }
    Column(
        modifier = Modifier
            .fillMaxSize(),
        verticalArrangement = Arrangement.Center,
        horizontalAlignment = Alignment.CenterHorizontally
    ) {
        PagingBackendSample()
    }
}


@Composable
fun Street() {
    val systemUiController = rememberSystemUiController()
    LaunchedEffect(Unit) {
        systemUiController.setStatusBarColor(Color.Transparent, darkIcons = true)
    }
    Column(
        modifier = Modifier
            .fillMaxSize(),
        verticalArrangement = Arrangement.Center,
        horizontalAlignment = Alignment.CenterHorizontally
    ) {
        StreetPage()
    }
}

@Composable
fun Add() {
    val systemUiController = rememberSystemUiController()
    LaunchedEffect(Unit) {
        systemUiController.setStatusBarColor(Color.Black, darkIcons = false)
    }
    Column(
        modifier = Modifier
            .fillMaxSize()
            .background(Color.Black),
        verticalArrangement = Arrangement.Center,
        horizontalAlignment = Alignment.CenterHorizontally
    ) {
        AddPage()
    }
}

@Composable
fun Video() {
    val systemUiController = rememberSystemUiController()
    LaunchedEffect(Unit) {
        systemUiController.setStatusBarColor(Color.Black, darkIcons = false)
    }
    Column(
        modifier = Modifier
            .fillMaxSize(),
        verticalArrangement = Arrangement.Top,
        horizontalAlignment = Alignment.CenterHorizontally,
    ) {
        ShortVideo()
    }
}

@Composable
fun Message() {
    val navigationBarHeight = with(LocalDensity.current) {
        WindowInsets.navigationBars.getBottom(this).toDp()
    }
    Column(
        modifier = Modifier
            .fillMaxSize(),
        verticalArrangement = Arrangement.Top,
        horizontalAlignment = Alignment.CenterHorizontally,
    ) {
        MessagePage()
    }
}

@Composable
fun Profile() {
    val systemUiController = rememberSystemUiController()
    LaunchedEffect(Unit) {
        systemUiController.setStatusBarColor(Color.Transparent, darkIcons = true)
    }
    Column(
        modifier = Modifier
            .fillMaxSize(),
        verticalArrangement = Arrangement.Center,
        horizontalAlignment = Alignment.CenterHorizontally
    ) {
        ProfilePage()
    }
}


@Preview(showBackground = true)
@Composable
fun GreetingPreview() {
    RiderProTheme {
        Surface(modifier = Modifier.fillMaxSize(), color = Color.White) {
            Navigation()
        }
    }
}