package com.mapbox.mapboxsdk.testapp.activity.imagegenerator

import android.os.Bundle
import android.support.v7.app.AppCompatActivity
import com.mapbox.mapboxsdk.log.Logger
import com.mapbox.mapboxsdk.maps.MapView
import com.mapbox.mapboxsdk.maps.MapboxMap
import com.mapbox.mapboxsdk.maps.OnMapReadyCallback
import com.mapbox.mapboxsdk.maps.Style
import com.mapbox.mapboxsdk.testapp.R
import kotlinx.android.synthetic.main.activity_snapshot.*
import timber.log.Timber

/**
 * Test activity showcasing the Snapshot API to create and display a bitmap of the current shown Map.
 */
class SnapshotActivity : AppCompatActivity(), OnMapReadyCallback {

  private lateinit var mapboxMap: MapboxMap

  private val idleListener = object : MapView.OnDidFinishRenderingFrameListener {
    override fun onDidFinishRenderingFrame(fully: Boolean) {
      if (fully) {
        mapView.removeOnDidFinishRenderingFrameListener(this)
        Logger.v(TAG, LOG_MESSAGE)
        mapboxMap.snapshot { snapshot ->
          imageView.setImageBitmap(snapshot)
          mapView.addOnDidFinishRenderingFrameListener(this)
        }
      }
    }
  }

  public override fun onCreate(savedInstanceState: Bundle?) {
    super.onCreate(savedInstanceState)
    setContentView(R.layout.activity_snapshot)
    mapView.onCreate(savedInstanceState)
    mapView.getMapAsync(this)
  }

  override fun onMapReady(map: MapboxMap) {
    mapboxMap = map
    mapboxMap.setStyle(Style.Builder().fromUrl(Style.OUTDOORS)) { mapView.addOnDidFinishRenderingFrameListener(idleListener) }
  }

  override fun onStart() {
    super.onStart()
    mapView.onStart()
  }

  override fun onResume() {
    super.onResume()
    mapView.onResume()
  }

  override fun onPause() {
    super.onPause()
    mapboxMap.snapshot {
      Timber.e("Regression test for https://github.com/mapbox/mapbox-gl-native/pull/11358")
    }
    mapView.onPause()
  }

  override fun onStop() {
    super.onStop()
    mapView.onStop()
  }

  public override fun onSaveInstanceState(outState: Bundle) {
    super.onSaveInstanceState(outState)
    mapView.onSaveInstanceState(outState)
  }

  override fun onLowMemory() {
    super.onLowMemory()
    mapView.onLowMemory()
  }

  public override fun onDestroy() {
    super.onDestroy()
    mapView.removeOnDidFinishRenderingFrameListener(idleListener)
    mapView.onDestroy()
  }

  companion object {
    const val TAG = "Mbgl-SnapshotActivity"
    const val LOG_MESSAGE = "OnSnapshot"
  }
}