package com.example.romain.lastfmtopartists;

import android.app.ProgressDialog;
import android.content.Context;
import android.net.ConnectivityManager;
import android.net.NetworkInfo;
import android.os.AsyncTask;
import android.support.v7.app.AppCompatActivity;
import android.os.Bundle;
import android.util.Log;
import android.view.View;
import android.widget.Button;
import android.widget.EditText;
import android.widget.ListAdapter;
import android.widget.ListView;
import android.widget.SimpleAdapter;
//import android.widget.TextView;
import android.widget.Toast;

import org.json.JSONArray;
import org.json.JSONException;
import org.json.JSONObject;

import java.util.ArrayList;
import java.util.HashMap;

public class ViewFM extends AppCompatActivity {
    private String TAG = ViewFM.class.getSimpleName();
    public static final String  urlString = "http://ws.audioscrobbler.com/2.0/?method=geo.gettopartists&country=belgium&api_key=32ef5df0e36797b605e205529058f3b8&format=json&limit=";
    private String toSend = urlString;
    //private ModelFM model;
    private Button but;
    private EditText editTxt;
    // barre de progression du téléchargement
    private ProgressDialog dialog;
    private ListView lv;
    // contient les différents artistes et le nombre d'écoutes
    private ArrayList<HashMap<String,String>> artistList;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
        //model = ((Builder) getApplication()).getModel();
        lv = (ListView) findViewById(R.id.list);
        artistList = new ArrayList<>();
        initOnclick();
    }

    /**** Method who initialize the onClicks ****/
    public void initOnclick(){
        but = (Button) findViewById(R.id.button);
        but.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View view) {
                ConnectivityManager connMgr = (ConnectivityManager) getSystemService(Context.CONNECTIVITY_SERVICE);
                NetworkInfo nInfo = connMgr.getActiveNetworkInfo();

                if(nInfo != null || nInfo.isConnected()){
                    /** connexion ok  **/
                    but.setEnabled(true);
                    editTxt = (EditText) findViewById(R.id.editText);
                    String input = editTxt.getText().toString();
                    toSend+=input;
                    Log.e(TAG,toSend);
                    new DownLoadLastFm().execute(toSend);
                    toSend = urlString;
                }else {
                    //
                    /** connexion ko**/
                    but.setEnabled(false);
                    Context context = getApplicationContext();
                    CharSequence text = nInfo.getReason();
                    //todo print error in a toast, que renvoie getReason?
                    int duration = Toast.LENGTH_SHORT;
                    Toast toast = Toast.makeText(context, text, duration);
                    toast.show();
                }
            }
        });
    }

    /**** Inner class who is in charge for download the data ****/
    private class DownLoadLastFm extends AsyncTask<String, Void,Void>{
        @Override
        protected void onPreExecute() {
            super.onPreExecute();
            // on affiche la barre de progression
            dialog = new ProgressDialog(ViewFM.this);
            dialog.setMessage("Patientez svp ...");
            dialog.setCancelable(false);
            dialog.show();
        }

        @Override
        protected Void doInBackground(String... urls) {
            //todo passer l'url en param
            HttpHandler httpH = new HttpHandler();
            Log.e(TAG,urls[1]);
            String jsonStr = httpH.makeHttpRequest(urls[1]);

            Log.e(TAG,"Response from url "+jsonStr);

            if(jsonStr != null){
                try {
                    JSONObject jsonObject = new JSONObject(jsonStr).getJSONObject("topartists");
                    JSONArray artists = jsonObject.getJSONArray("artist");
                    Log.e(TAG,"contenu de l'array"+artists.toString());
                    for (int i=0;i<artists.length();i++){
                        JSONObject jo = artists.getJSONObject(i);
                        String name = jo.getString("name");
                        String listeners = jo.getString("listeners");

                        HashMap<String,String> tmp = new HashMap<>();
                        tmp.put("name", name);
                        tmp.put("listeners", listeners);

                        artistList.add(tmp);
                    }
                } catch (final JSONException e){
                    Log.e(TAG, "Json parsing error: " + e.getStackTrace());
                    runOnUiThread(new Runnable() {
                        @Override
                        public void run() {
                            Toast.makeText(getApplicationContext(),
                                    "Json parsing error: " + e.getMessage(),
                                    Toast.LENGTH_LONG)
                                    .show();
                        }
                    });
                }
            } else {
                Log.e(TAG, "Couldn't get json from server.");
                runOnUiThread(new Runnable() {
                    @Override
                    public void run() {
                        Toast.makeText(getApplicationContext(),
                                "Couldn't get json from server. Check LogCat for possible errors!",
                                Toast.LENGTH_LONG)
                                .show();
                    }
                });
            }
            return null;
        }

        @Override
        protected void onPostExecute(Void s) {
            super.onPostExecute(s);
            // on cache la barre
            if(dialog.isShowing()){
                dialog.dismiss();
            }
            /** On met à jour les données json parsées avec un adapteur **/
            ListAdapter adapter = new SimpleAdapter(ViewFM.this,artistList,R.layout.list_item,
                    new String[]{"name","listeners"}, new int[]{R.id.name, R.id.listeners});
            lv.setAdapter(adapter);
        }
    }
}