// Copyright Amazon.com, Inc. or its affiliates. All Rights Reserved.
// SPDX-License-Identifier: MIT-0

package aws.location.demo.maplibre

import android.os.Bundle
import android.widget.TextView
import androidx.appcompat.app.AppCompatActivity
import aws.location.demo.okhttp.SigV4Interceptor
import com.amazonaws.auth.CognitoCachingCredentialsProvider
import com.amazonaws.regions.Regions
import com.mapbox.mapboxsdk.Mapbox
import com.mapbox.mapboxsdk.maps.MapView
import com.mapbox.mapboxsdk.maps.Style
import com.mapbox.mapboxsdk.module.http.HttpRequestUtil
import okhttp3.OkHttpClient

private const val SERVICE_NAME = "geo"

class MainActivity : AppCompatActivity() {
    private var mapView: MapView? = null

    override fun onCreate(savedInstanceState: Bundle?) {
        super.onCreate(savedInstanceState)

        // configuration
        val identityPoolId = getString(R.string.identityPoolId)
        val region = getString(R.string.awsRegion)
        val mapName = getString(R.string.mapName)

        // Credential initialization
        val credentialProvider = CognitoCachingCredentialsProvider(
            applicationContext,
            identityPoolId,
            Regions.fromName(identityPoolId.split(":").first())
        )

        // initialize MapLibre
        Mapbox.getInstance(this, null)
        HttpRequestUtil.setOkHttpClient(
            OkHttpClient.Builder()
                .addInterceptor(SigV4Interceptor(credentialProvider, SERVICE_NAME))
                .build()
        )

        // initialize the view
        setContentView(R.layout.activity_main)

        // initialize the map view
        mapView = findViewById(R.id.mapView)
        mapView?.onCreate(savedInstanceState)
        mapView?.getMapAsync { map ->
            map.setStyle(
                Style.Builder()
                    .fromUri("https://maps.geo.${region}.amazonaws.com/maps/v0/maps/${mapName}/style-descriptor")
            ) { style ->
                findViewById<TextView>(R.id.attributionView).text = style.sources.first()?.attribution
            }
        }
    }

    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()
    }
}