/**
 * @file StepCounterUiController.kt
 * @brief Rendering for the live step-counter card.
 */
package com.example.jnicpp.bowling

import android.view.View
import android.widget.TextView

/**
 * @brief Owns rendering for [BowlingCameraActivity]'s step-counter card.
 *
 * @param cardStepCounter The step-counter card container view.
 * @param textStepCountBig The large step-count number TextView.
 */
class StepCounterUiController(
    private val cardStepCounter: View,
    private val textStepCountBig: TextView,
) {
    // Last step count rendered, so pulse() in renderStepCount only plays
    // when a new step actually pushed the count up.
    private var lastRenderedStepCount = 0

    /**
     * @brief Shows or hides the step counter card.
     * @param visible true to reveal (recording in progress), false to hide.
     */
    fun setVisible(visible: Boolean) {
        cardStepCounter.visibility = if (visible) View.VISIBLE else View.GONE
    }

    /** @brief Clears pulse-tracking state; call whenever a new recording starts. */
    fun resetTracking() {
        lastRenderedStepCount = 0
    }

    /**
     * @brief Renders the current step count, pulsing the card if a new step was just confirmed.
     * @param stepCount Total steps counted so far in the current attempt.
     */
    fun renderStepCount(stepCount: Int) {
        textStepCountBig.text = stepCount.toString()
        if (stepCount > lastRenderedStepCount) {
            pulse()
        }
        lastRenderedStepCount = stepCount
    }

    /** @brief Briefly scales the step counter up and back down, drawing the eye to a newly confirmed step. */
    private fun pulse() {
        cardStepCounter.animate()
            .scaleX(1.15f).scaleY(1.15f)
            .setDuration(80)
            .withEndAction {
                cardStepCounter.animate().scaleX(1f).scaleY(1f).setDuration(120).start()
            }
            .start()
    }
}