package idsdk.views

import android.content.Context
import android.graphics.*
import android.util.AttributeSet
import android.util.Log
import android.view.SurfaceView
import androidx.core.graphics.toColorInt

class FaceDetectionView @JvmOverloads constructor(
    context: Context,
    attributeSet: AttributeSet? = null,
    defStyleAttr: Int = 0
) : SurfaceView(context, attributeSet, defStyleAttr) {

    private val backgroundPaint = Paint().apply {
        color = "#66000000".toColorInt()
        style = Paint.Style.FILL
    }
    private val ovalRect = RectF()
    private val eraser = Paint().apply {
        isAntiAlias = true
        xfermode = PorterDuffXfermode(PorterDuff.Mode.CLEAR)
    }

    init {
        setWillNotDraw(false)
    }

    fun updateFaceRect(newRect: RectF) {
        // Face rectangle highlight is intentionally disabled.
        try {
            invalidate()
        }catch (e: Exception){
            Log.e("processDetectRect", e.toString())
        }
    }

    override fun onSizeChanged(w: Int, h: Int, oldw: Int, oldh: Int) {
        super.onSizeChanged(w, h, oldw, oldh)
        ovalRect.set(
            w * 0.2f,
            h * 0.2f,
            w * 0.7f,
            h * 0.55f
        )
    }

    override fun onDraw(canvas: Canvas) {
        // Фон рисуем
        canvas.drawRect(0f, 0f, width.toFloat(), height.toFloat(), backgroundPaint)

        // Вычисляем размеры овала с уменьшением на 20%
        val ovalWidth = width * 0.75f * 0.8f
        val ovalHeight = ovalWidth * 1.4f
        val left = (width - ovalWidth) / 2f
        val top = (height - ovalHeight) / 2f

        ovalRect.set(left, top, left + ovalWidth, top + ovalHeight)
        canvas.drawOval(ovalRect, eraser)
    }
}