package android.example.dannymt_oblig2

import android.support.v7.app.AppCompatActivity
import android.os.Bundle
import android.support.v7.widget.LinearLayoutManager
import android.support.v7.widget.RecyclerView
import android.telecom.Call
import android.widget.Toast
import com.google.gson.Gson
import com.google.gson.reflect.TypeToken
import okhttp3.Callback
import okhttp3.OkHttpClient
import okhttp3.Request
import okhttp3.Response
import java.io.IOException

class MainActivity : AppCompatActivity() {
    private lateinit var recyclerView: RecyclerView
    private lateinit var viewAdapter: RecyclerView.Adapter<*>
    private lateinit var viewManager: RecyclerView.LayoutManager

    private lateinit var alpacas : MutableList<Alpaca>
    override fun onCreate(savedInstanceState: Bundle?) {
        super.onCreate(savedInstanceState)
        setContentView(R.layout.activity_main)



      alpacas=  getDataFromApiAndParseIt()


            viewManager = LinearLayoutManager(this)
            viewAdapter = ListAdapter(alpacas)

            recyclerView = findViewById<RecyclerView>(R.id.myRecyclerView).apply {
                // use this setting to improve performance if you know that changes
                // in content do not change the layout size of the RecyclerView
                setHasFixedSize(true)

                // use a linear layout manager
                layoutManager = viewManager

                // specify an viewAdapter (see also next example)
                adapter = viewAdapter
            }

        println(alpacas.get(0).name)
        }






    fun getDataFromApiAndParseIt() : MutableList<Alpaca> {
        val url   = "https://www.uio.no/studier/emner/matnat/ifi/IN2000/v20/obligatoriske-oppgaver/alpakka2.json"

        val request = Request.Builder().url(url).build()


        val client = OkHttpClient()

          var alpacasHere : MutableList<Alpaca> = mutableListOf()

        client.newCall(request).enqueue(object: Callback {

            override fun onResponse(call: okhttp3.Call, response: Response) {

                if (response.isSuccessful) {
                    val body = response.body?.string()

                    if (body?.trim().equals("[]")) {
                        this@MainActivity.runOnUiThread(java.lang.Runnable {
                            Toast.makeText(this@MainActivity, "EMPTY JSON ARRAY!!!", Toast.LENGTH_SHORT).show();
                        })
                    }else {
                        val gson = Gson()

                        var mutableListAlpaca = object : TypeToken<MutableList<Alpaca>>() {}.type
                        alpacasHere=    gson.fromJson(body,mutableListAlpaca)

                        println(alpacasHere.get(0).name)

                    }


                }

            }


            override fun onFailure(call: okhttp3.Call, e: IOException) {

                println("Failed to execute")
            }

        })
        return alpacasHere
    }
}