package com.amazon.location.android.quickstart

import android.os.Bundle
import android.util.Log
import android.widget.TextView
import androidx.appcompat.app.AppCompatActivity
import com.amplifyframework.core.Amplify
import com.amplifyframework.geo.location.models.AmazonLocationPlace
import com.amplifyframework.geo.maplibre.view.MapLibreView
import com.amplifyframework.geo.maplibre.view.support.fadeIn
import com.amplifyframework.geo.maplibre.view.support.fadeOut
import com.amplifyframework.geo.models.Coordinates
import com.amplifyframework.geo.options.GeoSearchByCoordinatesOptions
import com.mapbox.mapboxsdk.camera.CameraPosition
import com.mapbox.mapboxsdk.geometry.LatLng
import com.mapbox.mapboxsdk.maps.MapboxMap

class MainActivity : AppCompatActivity() {
    private val mapView by lazy {
        findViewById<MapLibreView>(R.id.mapView)
    }

    private val descriptionView by lazy {
        findViewById<TextView>(R.id.description_text_view)
    }

    override fun onCreate(savedInstanceState: Bundle?) {
        super.onCreate(savedInstanceState)
        setContentView(R.layout.activity_main)

        mapView.getMapAsync { map ->
            val initialPosition = LatLng(47.6160281982247, -122.32642111977668)
            map.cameraPosition = CameraPosition.Builder()
                .target(initialPosition)
                .zoom(13.0)
                .build()

            map.addOnCameraMoveStartedListener { toggleDescriptionText() }
            map.addOnCameraIdleListener { reverseGeocode(map) }
        }
    }

    private fun reverseGeocode(map: MapboxMap) {
        val options = GeoSearchByCoordinatesOptions.builder()
            .maxResults(1)
            .build()

        val centerCoordinates = Coordinates().apply {
            longitude = map.cameraPosition.target.longitude
            latitude = map.cameraPosition.target.latitude
        }
        Amplify.Geo.searchByCoordinates(centerCoordinates, options,
            { result ->
                result.places.firstOrNull()?.let { place ->
                    val amazonPlace = (place as AmazonLocationPlace)
                    runOnUiThread { toggleDescriptionText(amazonPlace.label) }
                }
            },
            { exp ->
                Log.e("AndroidQuickStart", "Failed to reverse geocode : $exp")
            }
        )
    }

    private fun toggleDescriptionText(label: String? = "") {
        if (label.isNullOrBlank()) {
            descriptionView.fadeOut()
        } else {
            descriptionView.text = label
            descriptionView.fadeIn()
        }
    }

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

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

    override fun onPause() {
        super.onPause()
        mapView?.onPause()
    }

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

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

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

    override fun onDestroy() {
        super.onDestroy()
        mapView?.onDestroy()
    }
}