package coffee.liz.abstractionengine.ui

import androidx.compose.foundation.Canvas
import androidx.compose.foundation.background
import androidx.compose.foundation.layout.fillMaxSize
import androidx.compose.material3.MaterialTheme
import androidx.compose.runtime.Composable
import androidx.compose.ui.Modifier
import androidx.compose.ui.geometry.Offset
import androidx.compose.ui.graphics.Color
import androidx.compose.ui.graphics.PathEffect

@Composable
fun PCBBackground(modifier: Modifier = Modifier) {
    val pcbGreen = Color(0xFF0D5F0D)
    val traceColor = Color(0xFF1A7F1A)
    val padColor = Color(0xFFD4AF37)

    Canvas(modifier = modifier.fillMaxSize().background(pcbGreen)) {
        val width = size.width
        val height = size.height

        // Draw circuit traces (horizontal and vertical lines)
        val pathEffect = PathEffect.dashPathEffect(floatArrayOf(10f, 5f), 0f)

        // Horizontal traces
        for (i in 0..15) {
            val y = (i * height / 15)
            drawLine(
                color = traceColor,
                start = Offset(0f, y),
                end = Offset(width, y),
                strokeWidth = 2f,
                pathEffect = pathEffect
            )
        }

        // Vertical traces
        for (i in 0..10) {
            val x = (i * width / 10)
            drawLine(
                color = traceColor,
                start = Offset(x, 0f),
                end = Offset(x, height),
                strokeWidth = 2f,
                pathEffect = pathEffect
            )
        }

        // Draw pads/components (small circles at intersections)
        for (i in 0..10 step 2) {
            for (j in 0..15 step 3) {
                val x = i * width / 10
                val y = j * height / 15
                drawCircle(
                    color = padColor,
                    radius = 4f,
                    center = Offset(x, y)
                )
            }
        }

        // Draw some resistor-like rectangles
        for (i in 1..9 step 4) {
            val x = i * width / 10
            val y = height / 2
            drawRect(
                color = Color(0xFF2A4A2A),
                topLeft = Offset(x - 15f, y - 8f),
                size = androidx.compose.ui.geometry.Size(30f, 16f)
            )
            // Resistor contacts
            drawCircle(
                color = padColor,
                radius = 3f,
                center = Offset(x - 15f, y)
            )
            drawCircle(
                color = padColor,
                radius = 3f,
                center = Offset(x + 15f, y)
            )
        }
    }
}