CleverClass/app/src/main/java/com/schoolapp/cleverclass/PSEActivity.kt

package com.schoolapp.cleverclass

import android.content.Context
import android.os.Bundle
import androidx.activity.ComponentActivity
import androidx.activity.compose.setContent
import androidx.compose.foundation.background
import androidx.compose.foundation.clickable
import androidx.compose.foundation.horizontalScroll
import androidx.compose.foundation.layout.Box
import androidx.compose.foundation.layout.Column
import androidx.compose.foundation.layout.Row
import androidx.compose.foundation.layout.fillMaxHeight
import androidx.compose.foundation.layout.fillMaxSize
import androidx.compose.foundation.layout.fillMaxWidth
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.ArrowBack
import androidx.compose.material.icons.outlined.Info
import androidx.compose.material3.AlertDialog
import androidx.compose.material3.ExperimentalMaterial3Api
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.material3.TopAppBar
import androidx.compose.material3.TopAppBarDefaults
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.graphics.Color
import androidx.compose.ui.unit.dp
import androidx.compose.ui.unit.sp
import com.schoolapp.cleverclass.ui.theme.CleverClassTheme
import org.json.JSONObject
import java.io.InputStreamReader

class PSEActivity : ComponentActivity() {
    override fun onCreate(savedInstanceState: Bundle?) {
        super.onCreate(savedInstanceState)
        setContent {
            CleverClassTheme {
                Surface(modifier = Modifier.fillMaxSize(),
                    color = MaterialTheme.colorScheme.background) {
                    PSEContent(activity = this)
                }
            }
        }
    }
}

// Content of PSE
@OptIn(ExperimentalMaterial3Api::class)
@Composable
fun PSEContent(activity: ComponentActivity){
    var showInfo by remember {
        mutableStateOf(false)
    }
    var dialogChooser by remember {
        mutableStateOf(-1)
    }
    val elementNameList = listOf(
        "H", "", "", "", "", "", "", "", "", "", "", "", "", "", "", "", "", "", "", "", "", "", "", "", "", "", "", "", "", "", "", "He",
        "Li", "Be", "", "", "", "", "", "", "", "", "", "", "", "", "", "", "", "", "", "", "", "", "", "", "", "", "B", "C", "N", "O", "F", "Ne",
        "Na", "Mg", "", "", "", "", "", "", "", "", "", "", "", "", "", "", "", "", "", "", "", "", "", "", "", "", "Al", "Si", "P", "S", "Cl", "Ar",
        "K", "Ca", "", "", "", "", "", "", "", "", "", "", "", "", "", "", "Sc", "Ti", "V", "Cr", "Mn", "Fe", "Co", "Ni", "Cu", "Zn", "Ga", "Ge", "As", "Se", "Br", "Kr",
        "Rb", "Sr", "", "", "", "", "", "", "", "", "", "", "", "", "", "", "Y", "Zr", "Nb", "Mo", "Tc", "Ru", "Rh", "Pd", "Ag", "Cd", "In", "Sn", "Sb", "Te", "I", "Xe",
        "Cs", "Ba", "La", "Ce", "Pr", "Nd", "Pm", "Sm", "Eu", "Gd", "Tb", "Dy", "Ho", "Er", "Tm", "Yb", "Lu", "Hf", "Ta", "W", "Re", "Os", "Ir", "Pt", "Au", "Hg", "Tl", "Pb", "Bi", "Po", "At", "Rn",
        "Fr", "Ra", "Ac", "Th", "Pa", "U", "Np", "Pu", "Am", "Cm", "Bk", "Cf", "Es", "Fm", "Md", "No", "Lr", "Rf", "Db", "Sg", "Bh", "Hs", "Mt", "Ds", "Rg", "Cn", "Nh", "Fl", "Mc", "Lv", "Ts", "Og"
    )
    val elementButtonColors = listOf(
        0, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, 0,
        1, 1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, 1, 1, 1, 1, 1, 1,
        2, 2, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, 2, 2, 2, 2, 2, 2,
        3, 3, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 3, 3, 3, 3, 3, 3,
        4, 4, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 4, 4, 4, 4, 4, 4,
        5, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 5, 5, 5, 5, 5, 5,
        6, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 6, 6, 6, 6, 6, 6
    )
    val colors = listOf(
        Color(0xFFBCA76D),
        Color(0xFFC65253),
        Color(0xFF337733),
        Color(0xFFDC2222),
        Color(0xFF129DC3),
        Color(0xFFDDCC69),
        Color(0xFF7044DD)
    )
    Column {
        TopAppBar(
            colors = TopAppBarDefaults.centerAlignedTopAppBarColors(MaterialTheme.colorScheme.primaryContainer),
            title = {
                Text(
                    text = "Periodensystem der Elemente",
                    style = MaterialTheme.typography.headlineSmall,
                    color = MaterialTheme.colorScheme.onPrimaryContainer
                )
            },
            navigationIcon = {
                IconButton(onClick = { activity.finish() }) {
                    Icon(
                        imageVector = Icons.Filled.ArrowBack,
                        contentDescription = null,
                        modifier = Modifier.size(28.dp),
                        tint = MaterialTheme.colorScheme.onPrimaryContainer
                    )
                }
            },
            actions = {
                IconButton(onClick = {
                    showInfo = true
                }) {
                    Icon(
                        imageVector = Icons.Outlined.Info,
                        contentDescription = "",
                        modifier = Modifier.size(28.dp),
                        tint = MaterialTheme.colorScheme.onPrimaryContainer
                    )
                }
            },
            modifier = Modifier.fillMaxWidth()
        )

        Column(
            modifier = Modifier
                .fillMaxHeight()
                .padding(3.dp)
                .verticalScroll(rememberScrollState())
                .horizontalScroll(rememberScrollState())
        ) {
            var dialogCounter = 0
            for (row in 0..6) {
                Row {
                    for (element in 0..31) {
                        val index = row * 32 + element
                        if (elementNameList[index] != "") {
                            Box(modifier = Modifier
                                .padding(3.dp)
                                .size(60.dp)
                                .background(color = colors[elementButtonColors[index]])
                                .clickable { dialogChooser = ++dialogCounter }
                            ) {
                                Text(
                                    modifier = Modifier
                                        .align(Alignment.Center),
                                    text = elementNameList[index],
                                    color = com.schoolapp.cleverclass.ui.theme.TextOnColouredButton,
                                    fontSize = 24.sp
                                )
                            }
                        } else {
                            Box(
                                modifier = Modifier
                                    .padding(3.dp)
                                    .size(60.dp)
                            )
                        }
                    }
                }
            }
        }
    }

    if (dialogChooser != -1) {
        val dcValue = dialogChooser
        AlertDialog(
            onDismissRequest = { dialogChooser = -1 },
            text = {
                Text(
                    modifier = Modifier
                        .verticalScroll(rememberScrollState())
                        .horizontalScroll(rememberScrollState()),
                    text = readElementData(activity, dcValue),
                    color = MaterialTheme.colorScheme.onPrimaryContainer,
                    style = MaterialTheme.typography.labelMedium
                )
            },
            confirmButton = {
                Text(
                    text = "Schließen",
                    color = MaterialTheme.colorScheme.secondary,
                    style = MaterialTheme.typography.labelMedium,
                    modifier = Modifier.clickable {
                        dialogChooser = -1
                    }
                )
            },
            containerColor = MaterialTheme.colorScheme.primaryContainer,
            modifier = Modifier
                .padding(5.dp)
        )
    }
    if (showInfo) {
        AlertDialog(
            onDismissRequest = { showInfo = false },
            text = {
                Text(
                    text = "Verwendung im Querformat empfohlen",
                    color = MaterialTheme.colorScheme.onPrimaryContainer,
                    style = MaterialTheme.typography.labelMedium
                )
            },
            confirmButton = {
                Text(
                    text = "Schließen",
                    color = MaterialTheme.colorScheme.secondary,
                    style = MaterialTheme.typography.labelMedium,
                    modifier = Modifier.clickable {
                        showInfo = false
                    }
                )
            },
            containerColor = MaterialTheme.colorScheme.primaryContainer,
            modifier = Modifier
                .padding(5.dp)
        )
    }
}

fun readElementData(context: Context, int: Int): String {
    val inputStream = context.assets.open("elements_data.json")
    val rootObj = JSONObject(InputStreamReader(inputStream).readText())
    val elementData = rootObj.getJSONArray("elements").getJSONObject(int)
    return "Name\n >>> ${elementData.get("Name")}\n\n" +
            "Ordnungszahl\n >>> ${elementData.get("Ordnungszahl")}\n\n" +
            "Gruppe\n >>> ${elementData.get("Gruppe")}\n\n" +
            "Periode/Hauptquantenzahl\n >>> ${elementData.get("Periode/Hauptquantenzahl")}\n\n" +
            "Schale\n >>> ${elementData.get("Schale")}\n\n" +
            "Molare Masse\n >>> ${elementData.get("Molare Masse")}\n\n" +
            "Dichte\n >>> ${elementData.get("Dichte")}\n\n" +
            "Elektronegativität\n >>> ${elementData.get("Elektronegativität")}\n\n" +
            "Schmelztemperatur\n >>> ${elementData.get("Schmelztemperatur")}\n\n" +
            "Siedetemperatur\n >>> ${elementData.get("Siedetemperatur")}\n\n" +
            "radioaktiv\n >>> ${elementData.get("radioaktiv")}\n\n" +
            "Halbwertszeit\n >>> ${elementData.get("Halbwertszeit")}\n\n" +
            "Strahlungsart\n >>> ${elementData.get("Strahlungsart")}\n\n" +
            "künstlich\n >>> ${elementData.get("künstlich")}\n\n" +
            "langlebigstes Isotop\n >>> ${elementData.get("langlebigstes Isotop")}"
}