package com.racingapp.pitlog.ui

import androidx.compose.foundation.layout.Arrangement
import androidx.compose.foundation.layout.Column
import androidx.compose.foundation.layout.ColumnScope
import androidx.compose.foundation.layout.PaddingValues
import androidx.compose.foundation.layout.Row
import androidx.compose.foundation.layout.RowScope
import androidx.compose.foundation.layout.WindowInsets
import androidx.compose.foundation.layout.fillMaxSize
import androidx.compose.foundation.layout.fillMaxWidth
import androidx.compose.foundation.layout.ime
import androidx.compose.foundation.layout.navigationBars
import androidx.compose.foundation.layout.padding
import androidx.compose.foundation.layout.union
import androidx.compose.foundation.layout.widthIn
import androidx.compose.foundation.layout.windowInsetsPadding
import androidx.compose.foundation.rememberScrollState
import androidx.compose.foundation.verticalScroll
import androidx.compose.material3.Button
import androidx.compose.material3.MaterialTheme
import androidx.compose.material3.OutlinedTextField
import androidx.compose.material3.Surface
import androidx.compose.material3.Text
import androidx.compose.runtime.Composable
import androidx.compose.ui.Alignment
import androidx.compose.ui.Modifier
import androidx.compose.ui.text.font.FontWeight
import androidx.compose.ui.text.input.KeyboardCapitalization
import androidx.compose.ui.text.input.KeyboardType
import androidx.compose.ui.text.style.TextAlign
import androidx.compose.ui.unit.dp
import androidx.compose.foundation.text.KeyboardOptions
import com.racingapp.pitlog.model.Corner
import com.racingapp.pitlog.model.TireSheet
import com.racingapp.pitlog.model.formatTemp

@Composable
fun PitScroll(
    padding: PaddingValues,
    content: @Composable ColumnScope.() -> Unit,
) {
    Column(
        modifier = Modifier
            .fillMaxSize()
            .padding(padding)
            .verticalScroll(rememberScrollState()),
        horizontalAlignment = Alignment.CenterHorizontally,
    ) {
        Column(
            modifier = Modifier
                .widthIn(max = 640.dp)
                .fillMaxWidth()
                .padding(horizontal = 16.dp, vertical = 8.dp),
            content = content,
        )
    }
}

@Composable
fun PitActionButton(
    text: String,
    onClick: () -> Unit,
    enabled: Boolean = true,
) {
    Surface(color = MaterialTheme.colorScheme.background) {
        Button(
            onClick = onClick,
            enabled = enabled,
            modifier = Modifier
                .fillMaxWidth()
                .windowInsetsPadding(WindowInsets.navigationBars.union(WindowInsets.ime))
                .padding(16.dp),
        ) {
            Text(text)
        }
    }
}

@Composable
fun SectionLabel(text: String) {
    Text(
        text = text,
        style = MaterialTheme.typography.titleMedium,
        color = MaterialTheme.colorScheme.primary,
        modifier = Modifier.padding(top = 20.dp, bottom = 8.dp),
    )
}

@Composable
fun NumberField(
    label: String,
    value: String,
    onValue: (String) -> Unit,
    modifier: Modifier = Modifier,
    decimal: Boolean = true,
) {
    OutlinedTextField(
        value = value,
        onValueChange = onValue,
        label = { Text(label) },
        singleLine = true,
        keyboardOptions = KeyboardOptions(
            keyboardType = if (decimal) KeyboardType.Decimal else KeyboardType.Number,
        ),
        textStyle = MaterialTheme.typography.titleMedium.copy(fontWeight = FontWeight.SemiBold),
        modifier = modifier,
    )
}

@Composable
fun WordsField(
    label: String,
    value: String,
    onValue: (String) -> Unit,
    modifier: Modifier = Modifier,
    placeholder: String = "",
    isError: Boolean = false,
    supportingText: String? = null,
    capitalization: KeyboardCapitalization = KeyboardCapitalization.Words,
    keyboardType: KeyboardType = KeyboardType.Text,
) {
    OutlinedTextField(
        value = value,
        onValueChange = onValue,
        label = { Text(label) },
        placeholder = if (placeholder.isEmpty()) null else ({ Text(placeholder) }),
        singleLine = true,
        isError = isError,
        supportingText = supportingText?.let { message -> { Text(message) } },
        keyboardOptions = KeyboardOptions(capitalization = capitalization, keyboardType = keyboardType),
        modifier = modifier
            .fillMaxWidth()
            .padding(top = 8.dp),
    )
}

@Composable
fun TireHeatLines(sheet: TireSheet) {
    val corners = Corner.entries.filter { sheet.heatOf(it).any() }
    if (corners.isEmpty()) return
    Column(verticalArrangement = Arrangement.spacedBy(2.dp)) {
        Row(Modifier.fillMaxWidth()) {
            Text(text = "", modifier = Modifier.weight(0.7f))
            HeatCell("Inside", heading = true)
            HeatCell("Middle", heading = true)
            HeatCell("Outside", heading = true)
        }
        corners.forEach { corner ->
            val heat = sheet.heatOf(corner)
            Row(Modifier.fillMaxWidth(), verticalAlignment = Alignment.CenterVertically) {
                Text(
                    corner.short,
                    modifier = Modifier.weight(0.7f),
                    fontWeight = FontWeight.SemiBold,
                )
                HeatCell(formatTemp(heat.inside))
                HeatCell(formatTemp(heat.middle))
                HeatCell(formatTemp(heat.outside))
            }
        }
    }
}

@Composable
private fun RowScope.HeatCell(value: String, heading: Boolean = false) {
    Text(
        value,
        modifier = Modifier.weight(1f),
        textAlign = TextAlign.End,
        style = if (heading) MaterialTheme.typography.labelMedium else MaterialTheme.typography.titleMedium,
        color = if (heading) MaterialTheme.colorScheme.onSurfaceVariant else MaterialTheme.colorScheme.onSurface,
    )
}

@Composable
fun FieldRow(content: @Composable RowScope.() -> Unit) {
    Row(
        modifier = Modifier.fillMaxWidth(),
        horizontalArrangement = Arrangement.spacedBy(8.dp),
        content = content,
    )
}