tachiyomi/app/src/main/java/eu/kanade/presentation/components/Surface.kt

package eu.kanade.presentation.components

import androidx.compose.foundation.BorderStroke
import androidx.compose.foundation.background
import androidx.compose.foundation.border
import androidx.compose.foundation.combinedClickable
import androidx.compose.foundation.interaction.MutableInteractionSource
import androidx.compose.foundation.layout.Box
import androidx.compose.material.ripple.rememberRipple
import androidx.compose.material3.ColorScheme
import androidx.compose.material3.LocalAbsoluteTonalElevation
import androidx.compose.material3.LocalContentColor
import androidx.compose.material3.MaterialTheme
import androidx.compose.material3.contentColorFor
import androidx.compose.runtime.Composable
import androidx.compose.runtime.CompositionLocalProvider
import androidx.compose.runtime.NonRestartableComposable
import androidx.compose.runtime.ReadOnlyComposable
import androidx.compose.runtime.remember
import androidx.compose.ui.Modifier
import androidx.compose.ui.draw.clip
import androidx.compose.ui.draw.shadow
import androidx.compose.ui.graphics.Color
import androidx.compose.ui.graphics.RectangleShape
import androidx.compose.ui.graphics.Shape
import androidx.compose.ui.graphics.compositeOver
import androidx.compose.ui.semantics.Role
import androidx.compose.ui.unit.Dp
import androidx.compose.ui.unit.dp
import eu.kanade.presentation.util.minimumTouchTargetSize
import kotlin.math.ln

@Composable
@NonRestartableComposable
fun Surface(
    onClick: () -> Unit,
    modifier: Modifier = Modifier,
    onLongClick: (() -> Unit)? = null,
    enabled: Boolean = true,
    shape: Shape = RectangleShape,
    color: Color = MaterialTheme.colorScheme.surface,
    contentColor: Color = contentColorFor(color),
    tonalElevation: Dp = 0.dp,
    shadowElevation: Dp = 0.dp,
    border: BorderStroke? = null,
    interactionSource: MutableInteractionSource = remember { MutableInteractionSource() },
    content: @Composable () -> Unit,
) {
    val absoluteElevation = LocalAbsoluteTonalElevation.current + tonalElevation
    CompositionLocalProvider(
        LocalContentColor provides contentColor,
        LocalAbsoluteTonalElevation provides absoluteElevation,
    ) {
        Box(
            modifier = modifier
                .minimumTouchTargetSize()
                .surface(
                    shape = shape,
                    backgroundColor = surfaceColorAtElevation(
                        color = color,
                        elevation = absoluteElevation,
                    ),
                    border = border,
                    shadowElevation = shadowElevation,
                )
                .combinedClickable(
                    interactionSource = interactionSource,
                    indication = rememberRipple(),
                    enabled = enabled,
                    role = Role.Button,
                    onLongClick = onLongClick,
                    onClick = onClick,
                ),
            propagateMinConstraints = true,
        ) {
            content()
        }
    }
}

private fun Modifier.surface(
    shape: Shape,
    backgroundColor: Color,
    border: BorderStroke?,
    shadowElevation: Dp,
) = this
    .shadow(shadowElevation, shape, clip = false)
    .then(if (border != null) Modifier.border(border, shape) else Modifier)
    .background(color = backgroundColor, shape = shape)
    .clip(shape)

@Composable
@ReadOnlyComposable
private fun surfaceColorAtElevation(color: Color, elevation: Dp): Color {
    return if (color == MaterialTheme.colorScheme.surface) {
        MaterialTheme.colorScheme.surfaceColorAtElevation(elevation)
    } else {
        color
    }
}

private fun ColorScheme.surfaceColorAtElevation(
    elevation: Dp,
): Color {
    if (elevation == 0.dp) return surface
    val alpha = ((4.5f * ln(elevation.value + 1)) + 2f) / 100f
    return surfaceTint.copy(alpha = alpha).compositeOver(surface)
}