Tooltip

import androidx.compose.animation.core.tween
import androidx.compose.animation.fadeIn
import androidx.compose.animation.fadeOut
import androidx.compose.animation.scaleIn
import androidx.compose.animation.slideInVertically
import androidx.compose.foundation.Canvas
import androidx.compose.foundation.background
import androidx.compose.foundation.border
import androidx.compose.foundation.interaction.MutableInteractionSource
import androidx.compose.foundation.layout.Box
import androidx.compose.foundation.layout.Column
import androidx.compose.foundation.layout.Row
import androidx.compose.foundation.layout.fillMaxSize
import androidx.compose.foundation.layout.offset
import androidx.compose.foundation.layout.padding
import androidx.compose.foundation.layout.size
import androidx.compose.foundation.shape.CircleShape
import androidx.compose.foundation.shape.RoundedCornerShape
import androidx.compose.foundation.text.BasicText
import androidx.compose.runtime.Composable
import androidx.compose.runtime.remember
import androidx.compose.ui.Alignment
import androidx.compose.ui.Modifier
import androidx.compose.ui.draw.clip
import androidx.compose.ui.draw.rotate
import androidx.compose.ui.graphics.Color
import androidx.compose.ui.graphics.Path
import androidx.compose.ui.graphics.TransformOrigin
import androidx.compose.ui.text.TextStyle
import androidx.compose.ui.unit.IntOffset
import androidx.compose.ui.unit.dp
import com.composables.icons.lucide.BellDot
import com.composables.icons.lucide.Lucide
import com.composeunstyled.AnchorAlignment
import com.composeunstyled.AnchorSide
import com.composeunstyled.PortalHost
import com.composeunstyled.TooltipPanel
import com.composeunstyled.TooltipPlacement
import com.composeunstyled.UnstyledButton
import com.composeunstyled.UnstyledIcon
import com.composeunstyled.UnstyledTooltip
import com.composeunstyled.focusRing

@Composable
fun TooltipDemo() {
  PortalHost(Modifier.fillMaxSize()) {
    Box(
      modifier = Modifier.fillMaxSize(),
      contentAlignment = Alignment.Center,
    ) {
      UnstyledTooltip(
        side = AnchorSide.Top,
        alignment = AnchorAlignment.Center,
        panel = {
          TooltipPanel(
            enter = slideInVertically(tween(150), initialOffsetY = { (it * 0.25).toInt() }) +
              scaleIn(
                animationSpec = tween(150),
                transformOrigin = TransformOrigin(0.5f, 1f),
                initialScale = 0.65f,
              ) + fadeIn(tween(150)),
            exit = fadeOut(tween(250)),
          ) {
            TooltipBubble(it)
          }
        },
      ) {
        val interactionSource = remember { MutableInteractionSource() }

        UnstyledButton(
          onClick = { },
          modifier = Modifier
            .clip(CircleShape)
            .background(Color(0xFFF8FAFC))
            .border(1.dp, Color(0xFFCACACA), CircleShape)
            .focusRing(interactionSource, 1.dp, Color.Black, CircleShape),
          interactionSource = interactionSource,
        ) {
          Box(Modifier.padding(8.dp)) {
            UnstyledIcon(Lucide.BellDot, contentDescription = null)
          }
        }
      }
    }
  }
}

@Composable
private fun TooltipBubble(placement: TooltipPlacement) {
  when (placement.side) {
    AnchorSide.Top -> Column(horizontalAlignment = Alignment.CenterHorizontally) {
      TooltipContainer()
      TooltipArrow(placement)
    }

    AnchorSide.Bottom -> Column(horizontalAlignment = Alignment.CenterHorizontally) {
      TooltipArrow(placement)
      TooltipContainer()
    }

    AnchorSide.Start -> Row(verticalAlignment = Alignment.CenterVertically) {
      TooltipContainer()
      TooltipArrow(placement)
    }

    AnchorSide.End -> Row(verticalAlignment = Alignment.CenterVertically) {
      TooltipArrow(placement)
      TooltipContainer()
    }
  }
}

@Composable
private fun TooltipContainer() {
  Box(
    modifier = Modifier
      .clip(RoundedCornerShape(100))
      .background(Color(0xFFF8FAFC))
      .border(1.dp, Color(0xFFCACACA), RoundedCornerShape(100))
      .padding(vertical = 8.dp, horizontal = 12.dp),
  ) {
    BasicText("Notifications", style = TextStyle(color = Color.Black))
  }
}

@Composable
private fun TooltipArrow(placement: TooltipPlacement) {
  val arrowOffset = placement.positionAdjustment
  val modifier = when (placement.side) {
    AnchorSide.Top,
    AnchorSide.Bottom,
    -> Modifier.offset { IntOffset(-arrowOffset.x, 0) }

    AnchorSide.Start,
    AnchorSide.End,
    -> Modifier.offset { IntOffset(0, -arrowOffset.y) }
  }
  val degrees = when (placement.side) {
    AnchorSide.Top -> 180f
    AnchorSide.Bottom -> 0f
    AnchorSide.Start -> 270f
    AnchorSide.End -> 90f
  }

  ArrowUp(modifier.rotate(degrees), Color(0xFFCACACA))
}

@Composable
private fun ArrowUp(modifier: Modifier = Modifier, color: Color) {
  Canvas(modifier = modifier.size(8.dp, 4.dp)) {
    val path = Path().apply {
      moveTo(size.width / 2f, 0f)
      lineTo(0f, size.height)
      lineTo(size.width, size.height)
      close()
    }
    drawPath(path, color = color)
  }
}