SimpleCloudNotifier/android_v2/app/src/main/java/com/blackforestbytes/simplecloudnotifier2/MainActivity.kt

package com.blackforestbytes.simplecloudnotifier2

import android.os.Bundle
import androidx.activity.ComponentActivity
import androidx.activity.compose.setContent
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.offset
import androidx.compose.foundation.layout.padding
import androidx.compose.foundation.layout.size
import androidx.compose.foundation.rememberScrollState
import androidx.compose.foundation.verticalScroll
import androidx.compose.material.icons.Icons
import androidx.compose.material.icons.filled.Menu
import androidx.compose.material3.CardDefaults
import androidx.compose.material3.CenterAlignedTopAppBar
import androidx.compose.material3.ElevatedCard
import androidx.compose.material3.ExperimentalMaterial3Api
import androidx.compose.material3.FabPosition
import androidx.compose.material3.FloatingActionButton
import androidx.compose.material3.FloatingActionButtonDefaults
import androidx.compose.material3.Icon
import androidx.compose.material3.IconButton
import androidx.compose.material3.MaterialTheme
import androidx.compose.material3.NavigationBar
import androidx.compose.material3.NavigationBarItem
import androidx.compose.material3.Scaffold
import androidx.compose.material3.Surface
import androidx.compose.material3.Text
import androidx.compose.material3.TopAppBar
import androidx.compose.material3.TopAppBarDefaults
import androidx.compose.runtime.Composable
import androidx.compose.ui.Alignment
import androidx.compose.ui.Modifier
import androidx.compose.ui.graphics.vector.ImageVector
import androidx.compose.ui.res.painterResource
import androidx.compose.ui.text.style.TextAlign
import androidx.compose.ui.text.style.TextOverflow
import androidx.compose.ui.tooling.preview.Preview
import androidx.compose.ui.unit.dp
import androidx.compose.ui.unit.sp
import com.blackforestbytes.simplecloudnotifier2.ui.theme.Simplecloudnotifier2Theme

class MainActivity : ComponentActivity() {

    override fun onCreate(savedInstanceState: Bundle?) {
        super.onCreate(savedInstanceState)
        setContent {
            Simplecloudnotifier2Theme {
                // A surface container using the 'background' color from the theme
                Surface(modifier = Modifier.fillMaxSize(), color = MaterialTheme.colorScheme.background) {

                    Content()

                }
            }
        }
    }
}

@OptIn(ExperimentalMaterial3Api::class)
@Composable
fun Content() {
    Scaffold(

        topBar = {
            CenterAlignedTopAppBar(
                colors = TopAppBarDefaults.centerAlignedTopAppBarColors(
                    containerColor = MaterialTheme.colorScheme.primaryContainer,
                    titleContentColor = MaterialTheme.colorScheme.primary,
                ),
                title = {
                    Text("Messages", maxLines = 1, overflow = TextOverflow.Ellipsis)
                },
                navigationIcon = {
                    IconButton(onClick = { /* do something */ }) {
                        Icon(painterResource(R.drawable.fas_gauge), contentDescription = "Menu", modifier = Modifier.size(24.dp))
                    }
                },

                actions = {
                    IconButton(onClick = { /* do something */ }) {
                        Icon(painterResource(R.drawable.fas_paper_plane_top), contentDescription = "Send message", modifier = Modifier.size(24.dp))
                    }
                },
            )
        },

        bottomBar = { NavBar() },

        floatingActionButton = { NavFAB() },

        floatingActionButtonPosition = FabPosition.Center,

    ) { innerPadding ->
        Column(
            modifier = Modifier
                .padding(innerPadding)
                .padding(16.dp)
                .verticalScroll(rememberScrollState()),
            verticalArrangement = Arrangement.spacedBy(16.dp),
        ) {
            MessageCard()
            MessageCard()
            MessageCard()
            MessageCard()
            MessageCard()
            MessageCard()
            MessageCard()
            MessageCard()
            MessageCard()
        }
    }
}

@Composable
fun NavBar() {
    NavigationBar {
        NavigationBarItem(
            icon = { Icon(painterResource(R.drawable.fas_road), contentDescription = "Channels", modifier = Modifier.size(32.dp)) },
            onClick = {},
            selected = false,
        )
        NavigationBarItem(
            icon = { Icon(painterResource(R.drawable.fas_computer), contentDescription = "Clients", modifier = Modifier.size(32.dp)) },
            onClick = {},
            selected = false,
        )
        NavigationBarItem(
            icon = { Icon(painterResource(R.drawable.fas_key), contentDescription = "Keys", modifier = Modifier.size(32.dp)) },
            onClick = {},
            selected = false,
        )
        NavigationBarItem(
            icon = { },
            onClick = {},
            selected = false,
        )
        NavigationBarItem(
            icon = { Icon(painterResource(R.drawable.fas_bookmark), contentDescription = "Subscriptions", modifier = Modifier.size(32.dp)) },
            onClick = {},
            selected = false,
        )
        NavigationBarItem(
            icon = { Icon(painterResource(R.drawable.fas_user), contentDescription = "User", modifier = Modifier.size(32.dp)) },
            onClick = {},
            selected = false,
        )
        NavigationBarItem(
            icon = { Icon(painterResource(R.drawable.fas_gear), contentDescription = "Settings", modifier = Modifier.size(32.dp)) },
            onClick = {},
            selected = false,
        )
    }
}

@Composable
fun NavFAB() {
    Box(){
        FloatingActionButton(
            onClick = { /* stub */ },
            shape = FloatingActionButtonDefaults.shape,
            modifier = Modifier
                .align(Alignment.Center)
                .size(70.dp)
                .offset(y = 50.dp)
        ) {
            Icon(
                painter = painterResource(R.drawable.fas_plus),
                contentDescription = null,
                modifier = Modifier.size(45.dp)
            )
        }
    }
}

@Composable
fun MessageCard() {
    ElevatedCard(
        elevation = CardDefaults.cardElevation(
            defaultElevation = 6.dp
        ),
        modifier = Modifier.fillMaxWidth().height(height = 100.dp)
    ) {
        Text(
            text = "Channel",
            modifier = Modifier.padding(16.dp),
            textAlign = TextAlign.Center,
        )
        Text(
            text = "Title",
            modifier = Modifier.padding(16.dp),
            textAlign = TextAlign.Center,
        )
        Text(
            text = "Body",
            modifier = Modifier.padding(16.dp),
            textAlign = TextAlign.Center,
        )
        Text(
            text = "Date",
            modifier = Modifier.padding(16.dp),
            textAlign = TextAlign.Center,
        )
    }

}

@Preview(showBackground = true)
@Composable
fun GreetingPreview() {
    Simplecloudnotifier2Theme {

        Content()

    }
}