package com.vpn.fastestvpnservice.customItems

import android.os.Looper
import android.util.Log
import android.widget.Toast
import androidx.compose.foundation.background
import androidx.compose.foundation.clickable
import androidx.compose.foundation.gestures.detectTapGestures
import androidx.compose.foundation.interaction.MutableInteractionSource
import androidx.compose.foundation.layout.Arrangement
import androidx.compose.foundation.layout.Box
import androidx.compose.foundation.layout.Column
import androidx.compose.foundation.layout.ColumnScope
import androidx.compose.foundation.layout.Row
import androidx.compose.foundation.layout.Spacer
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.lazy.LazyColumn
import androidx.compose.foundation.lazy.items
import androidx.compose.foundation.shape.CircleShape
import androidx.compose.material3.Icon
import androidx.compose.material3.IconButton
import androidx.compose.material3.MaterialTheme
import androidx.compose.material3.Surface
import androidx.compose.material3.Text
import androidx.compose.runtime.Composable
import androidx.compose.runtime.LaunchedEffect
import androidx.compose.runtime.MutableState
import androidx.compose.runtime.getValue
import androidx.compose.runtime.livedata.observeAsState
import androidx.compose.runtime.mutableIntStateOf
import androidx.compose.runtime.mutableStateOf
import androidx.compose.runtime.remember
import androidx.compose.runtime.rememberCoroutineScope
import androidx.compose.runtime.saveable.rememberSaveable
import androidx.compose.runtime.setValue
import androidx.compose.ui.Alignment
import androidx.compose.ui.Modifier
import androidx.compose.ui.draw.alpha
import androidx.compose.ui.draw.clip
import androidx.compose.ui.draw.paint
import androidx.compose.ui.graphics.Color
import androidx.compose.ui.input.pointer.pointerInput
import androidx.compose.ui.layout.ContentScale
import androidx.compose.ui.platform.LocalContext
import androidx.compose.ui.res.colorResource
import androidx.compose.ui.res.painterResource
import androidx.compose.ui.text.TextStyle
import androidx.compose.ui.text.style.TextAlign
import androidx.compose.ui.tooling.preview.Preview
import androidx.compose.ui.unit.dp
import androidx.compose.ui.unit.sp
import androidx.lifecycle.viewmodel.compose.viewModel
import androidx.navigation.NavHostController
import androidx.navigation.compose.rememberNavController
import com.vpn.fastestvpnservice.R
import com.vpn.fastestvpnservice.beans.CountryServerList
import com.vpn.fastestvpnservice.beans.Server
import com.vpn.fastestvpnservice.beans.allLocationsList
import com.vpn.fastestvpnservice.beans.favList
import com.vpn.fastestvpnservice.beans.favListServer
import com.vpn.fastestvpnservice.utils.Utils
import com.stealthcopter.networktools.Ping
import com.stealthcopter.networktools.ping.PingResult
import com.stealthcopter.networktools.ping.PingStats
import com.vpn.fastestvpnservice.helpers.BasePreferenceHelper
import com.vpn.fastestvpnservice.screens.bottomNavBarScreens.onServer
import com.vpn.fastestvpnservice.sealedClass.BottomBarScreen
import com.vpn.fastestvpnservice.sealedClass.Screen
import com.vpn.fastestvpnservice.viewmodels.HomeViewModel
import com.vpn.fastestvpnservice.viewmodels.ServerListViewModel
import com.vpn.fastestvpnservice.viewmodels.SplashViewModel
import java.lang.Exception
import java.util.logging.Handler

var serverInfoObj: MutableState<Server> = mutableStateOf(Server())

@Composable
fun CountryItem(
    server: Server,
    category: String,
    countryTotalServers: Int,
    navHostController: NavHostController
) {
    Log.d("test_countrySize", "CountryItem Called ${server.server_name} ${server.totalServers}")
    Box(
        modifier = Modifier
            .fillMaxWidth()
            .background(
                color = MaterialTheme.colorScheme.background
            )
            .padding(bottom = 1.dp)
    ) {
        val context = LocalContext.current
        val basePreferenceHelper = BasePreferenceHelper(context)
        val countrySize by rememberSaveable { mutableStateOf(server.totalServers) }
        var isServerExpanded by rememberSaveable { mutableStateOf(false) }
        val serverListViewModel: ServerListViewModel = viewModel{
            ServerListViewModel(context)
        }
        val splashViewModel: SplashViewModel = viewModel{
            SplashViewModel(context)
        }
        val scope = rememberCoroutineScope()
        val homeViewModel: HomeViewModel = viewModel {
            HomeViewModel(context, scope)
        }
        var isCountryServerClicked by remember { mutableStateOf(false) }
        if (isCountryServerClicked) {
            Log.d("ServerCallbacks", "isServerClicked $isCountryServerClicked")
            onServer.onServerSelected(context, homeViewModel,
                onClick =  { isCountryServerClicked = false },
                true,
                server
            )
            navHostController.popBackStack()
        }
        var isServerServerClicked by remember { mutableStateOf(false) }
        if (isServerServerClicked) {
            Log.d("ServerCallbacks", "isServerClicked $isServerServerClicked")
            onServer.onServerSelected(
                context,
                homeViewModel,
                onClick =  { isServerServerClicked = false },
                true,
                server
            )
            navHostController.popBackStack()
        }

        countrySize.let { size ->
//            var locationsSize: Int = 0
//            val countriesServersData = basePreferenceHelper.getServerData().get(0).servers
//            countriesServersData?.let {
//                val serversGroup = serverListViewModel.getServerGroupList(server, it)
//                locationsSize = serversGroup.size
//            }
            Column {
                /* Country Location's Row */
                Row(
                    verticalAlignment = Alignment.Top,
                    horizontalArrangement = Arrangement.Start,
                    modifier = Modifier
                        .fillMaxWidth()
                        .padding(
                            start = 16.dp, end = 12.dp, top = 12.dp
                        )
                        .clickable(
                            indication = null,
                            interactionSource = remember { MutableInteractionSource() }
                        ) {
                            if (server.enable == 1) {
//                                basePreferenceHelper.setServerObject(server)
                                isCountryServerClicked = true
                            } else {
                                navHostController.navigate(
                                    Screen.Subscription.route
                                )
                            }

                        }
                ) {
                    val icon = if (server.enable == 1) Utils.getDrawable(context, server.iso)
                    else Utils.getDrawableGray(context, server.iso)

                    Icon(
                        painter = painterResource(id = icon),
                        contentDescription = "Server Logo",
                        tint = Color.Unspecified,
                        modifier = Modifier
                            .padding(bottom = 16.dp)
                            .size(24.dp)
                            .clip(CircleShape)
                            .paint(
                                painter = painterResource(id = icon),
                                contentScale = ContentScale.FillHeight
                            )
                    )
                    Text(text = server.country!!,
                        style = MaterialTheme.typography.labelMedium,
                        color = MaterialTheme.colorScheme.primary,
                        modifier = Modifier
                            .padding(start = 16.dp, bottom = 18.dp)
                            .align(Alignment.CenterVertically)
                    )
                    Spacer(modifier = Modifier.weight(1F))
                    Text(text = "$countryTotalServers locations",
                        style = MaterialTheme.typography.bodySmall,
                        color = colorResource(id = R.color.dark_blue_gray_text),
                        modifier = Modifier
                            .padding(end = 30.dp, bottom = 18.dp)
                            .align(Alignment.CenterVertically)
                            .alpha(0.4F)
                    )
//            Spacer(modifier = Modifier.weight(1F))
                    Icon(
                        modifier = Modifier
                            .padding(bottom = 18.dp, end = 0.dp)
                            .size(12.dp, 7.dp)
                            .align(Alignment.CenterVertically)
                            .clickable(
                                indication = null,
                                interactionSource = remember { MutableInteractionSource() }
                            ) { isServerExpanded = !isServerExpanded },

                        painter = if (isServerExpanded) painterResource(
                            id = R.drawable.dragarrow3x) else painterResource(
                            id = R.drawable.downarrow3x),

                        contentDescription = "Server Logo",
                        tint = MaterialTheme.colorScheme.primary,
                    )
                }

                /* Country Expandable's Row */
                if (isServerExpanded) {
                    val countriesServersData1 = basePreferenceHelper.getServerData().get(0).servers
                    countriesServersData1?.let {
                        val serversGroup = serverListViewModel.getServerGroupList(server, it)
                        ExpandableRow(server = serversGroup, navHostController)
                    }

                }
            }

            Surface(
                modifier = Modifier
                    .padding(start = 0.dp, end = 0.dp)
                    .height(1.dp)
                    .fillMaxWidth()
                    .alpha(0.6F)
                    .align(Alignment.BottomCenter),
                color = colorResource(id = R.color.gray_icon)
            ) {}


//                    else {
//                        Log.d("test_return_ping","C[1]=> " + server.server_name + server.ping)
//                        Row(
//                            verticalAlignment = Alignment.Top,
//                            horizontalArrangement = Arrangement.Start,
//                            modifier = Modifier
//                                .fillMaxWidth()
//                                .padding(start = 16.dp, end = 7.dp, top = 12.dp)
//                                .clickable(
//                                    indication = null,
//                                    interactionSource = remember { MutableInteractionSource() }
//                                ) {
//                                    basePreferenceHelper.setServerObject(server)
//                                    isServerServerClicked = true
////                                    navHostController.popBackStack()
//                                }
//                        ) {
//                            val icon = if (server.enable == 1) Utils.getDrawable(context, server.iso)
//                            else Utils.getDrawableGray(context, server.iso)
//
//                            Icon(
//                                painter = painterResource(id = icon),
//                                contentDescription = "Server Logo",
//                                tint = Color.Unspecified,
//                                modifier = Modifier
//                                    .padding(bottom = 16.dp)
//                                    .size(24.dp)
//                                    .clip(CircleShape)
//                                    .paint(
//                                        painter = painterResource(id = icon),
//                                        contentScale = ContentScale.FillHeight
//                                    )
//                            )
//                            val serverTitle = if (category.lowercase().toString() == "servers") server.country else server.server_name
//                            Text(text = serverTitle!!,
//                                style = MaterialTheme.typography.labelMedium,
//                                color = MaterialTheme.colorScheme.primary,
//                                modifier = Modifier
//                                    .padding(start = 16.dp, bottom = 18.dp)
//                                    .align(Alignment.CenterVertically)
//                            )
//                            Spacer(modifier = Modifier.weight(1F))
//                            val pings = server.ping
//                            Text(
//                                text = "${server.ping} ms",
//                                style = MaterialTheme.typography.displayMedium,
//                                color = colorResource(id = R.color.blue_text),
//                                modifier = Modifier
//                                    .padding(end = 30.dp, bottom = 18.dp)
//                                    .align(Alignment.CenterVertically)
//                            )
//                            var isFavorite by rememberSaveable { mutableStateOf(server.isFavourited) }
//
//                            IconButton(
//                                modifier = Modifier
//                                    .padding(bottom = 18.dp, end = 8.dp)
//                                    .size(21.dp, 20.dp)
//                                    .align(Alignment.CenterVertically),
//                                onClick = {
//                                    isFavorite = !isFavorite!!
//                                    serverListViewModel.favAndUnFav(server)
//                                }
//                            )
//                            {
////                                val favResponse = serverListViewModel.mutableLiveDataFavUnFav.observeAsState().value
////                                favResponse?.let {
////                                    Log.d("test_fav_response", it.message.toString())
////                                    splashViewModel.serverDataApi()
////                                    serverListViewModel.mutableLiveDataFavUnFav.value = null
////                                }
//
//                                Icon(
////                                    .clickable(
////                                        indication = null,
////                                        interactionSource = remember { MutableInteractionSource() }
////                                    ) {  },
//
//                                    painter = if (isFavorite == true) painterResource(
//                                        id = R.drawable.fav_server3x) else painterResource(
//                                        id = R.drawable.unfav_server3x),
//
//                                    contentDescription = "Server Logo",
//                                    tint = Color.Unspecified,
//                                )
//                            }
//                        }

//                    Log.d("test_servers_count", "${server.server_name} ${server.countryServers?.size}")
                        /* Country Location's Row -> 1 Location() */

//                        var ping by remember { mutableIntStateOf(0) }
//                        Ping.onAddress(server.ip as String).setTimeOutMillis(1000).doPing(
//                            object : Ping.PingListener{
//                                override fun onResult(pingResult: PingResult?) {
//                                    android.os.Handler(Looper.getMainLooper()).post {
//                                        val ping = pingResult?.timeTaken?.toInt()!!
//                                        server.ping = ping
//                                        Log.d("test_ping", "ping = $ping")
//                                    }
//                                }
//
//                                override fun onError(e: Exception?) {}
//                                override fun onFinished(pingStats: PingStats?) {}
//                            }
//                        )
                    }
    }
}

@Composable
fun ColumnScope.ExpandableRow(server: ArrayList<Server>, navHostController: NavHostController) {
    val context = LocalContext.current
    val basePreferenceHelper = BasePreferenceHelper(context)
    val serverListViewModel: ServerListViewModel = viewModel{
        ServerListViewModel(context)
    }
    val splashViewModel: SplashViewModel = viewModel{ SplashViewModel(context) }
    val scope = rememberCoroutineScope()
    val homeViewModel: HomeViewModel = viewModel { HomeViewModel(context, scope) }
    var isExpServerClicked by remember { mutableStateOf(false) }

    Column(
        modifier = Modifier
            .padding(
                start = 40.dp, end = 26.dp,
                top = 2.dp, bottom = 28.dp
            )
            .background(Color.Transparent)
    ) {

        // Expandable Row
        server.let { serverData ->
                serverData.forEachIndexed { index, serverInfo ->
                    Log.d("serverInfo_ping", "serverInfo ${serverInfo.server_name} :: ${serverInfo.ping}")

                    var isFavorite by rememberSaveable { mutableStateOf(serverInfo.isFavourited) }
                    val isServerFavourited: Boolean = serverInfo.isFavourited == true
                    Log.d("test-server_fav_d", "$isFavorite")

                    if (isExpServerClicked) {
                        onServer.onServerSelected(
                            context,
                            homeViewModel,
                            onClick = {isExpServerClicked = false},
                            true,
                            serverInfoObj.value
                        )
                        navHostController.popBackStack()
                    }

                    Row(
                        verticalAlignment = Alignment.CenterVertically,
                        horizontalArrangement = Arrangement.Start,
                        modifier = Modifier
                            .fillMaxWidth()
                            .padding(
                                vertical = 15.dp
                            )
                            .background(Color.Transparent)
                            .clickable(
                                indication = null,
                                interactionSource = remember { MutableInteractionSource() }
                            ) {
                                if (serverInfo.enable == 1) {
                                    serverInfoObj.value = serverInfo
//                                    basePreferenceHelper.setServerObject(serverInfo)
                                    isExpServerClicked = true
                                } else {
                                    navHostController.navigate(
                                        Screen.Subscription.route
                                    )
                                }
                            }
                    ) {
                        Text(text = serverInfo.server_name!!,
                            style = MaterialTheme.typography.labelMedium,
                            color = MaterialTheme.colorScheme.onSecondary,
                            modifier = Modifier
                                .padding(start = 16.dp, bottom = 0.dp)
                                .align(Alignment.CenterVertically)
                                .alpha(0.4F)
                        )
                        Spacer(modifier = Modifier.weight(1F))

                        Text(text = "${serverInfo.ping} ms",
                            style = MaterialTheme.typography.displayMedium,
                            color = colorResource(id = R.color.blue_text),
                            modifier = Modifier
                                .padding(start = 0.dp, end = 30.dp)
                                .align(Alignment.CenterVertically)
                        )

                        IconButton(
                            modifier = Modifier
                                .padding(bottom = 0.dp, end = 16.dp)
                                .size(25.dp)
                                .align(Alignment.CenterVertically),
                            onClick = {
                            isFavorite = !isFavorite!!
                            serverListViewModel.favAndUnFav(serverInfo)
                        }
                        )
                        {
                            Icon(
//                                    .clickable(
//                                        indication = null,
//                                        interactionSource = remember { MutableInteractionSource() }
//                                    ) {  },
                                painter = if (isServerFavourited) painterResource(
                                    id = R.drawable.fav_server3x) else painterResource(
                                    id = R.drawable.unfav_server3x),
                                contentDescription = "Server Logo",
                                tint = Color.Unspecified,
                                modifier = Modifier.size(22.dp, 21.dp)
                            )
                        }
                    }

                    Surface(
                        modifier = Modifier
                            .padding(top = 0.dp, end = 0.dp)
                            .height(1.dp)
                            .fillMaxWidth()
                            .alpha(0.6F)
                        ,
                        color = colorResource(id = R.color.gray_icon)
                    ) {}
                }
            }
    }
}

fun calculatePing(server: Server, onPingResult: (Int) -> Unit) {
    Ping.onAddress(server.ip as String).setTimeOutMillis(1000).doPing(
        object : Ping.PingListener{
            override fun onResult(pingResult: PingResult?) {
                android.os.Handler(Looper.getMainLooper()).post {
                    val ping = pingResult?.timeTaken?.toInt()!!
                    onPingResult(ping)
                    Log.d("test_ping", "ping[0] = $ping")
                }
            }

            override fun onError(e: java.lang.Exception?) {}
            override fun onFinished(pingStats: PingStats?) {}
        }
    )
}

@Preview
@Composable
fun CountryItemPreview() {
    CountryItem(server = favListServer[0], "servers", 1, rememberNavController())
}