package com.joinmarrow.marrow;

import android.app.Activity;
import android.content.Context;
import android.content.Intent;
import android.content.SharedPreferences;
import android.net.Uri;
import android.os.AsyncTask;
import android.os.Bundle;
import android.preference.PreferenceManager;
import android.util.Log;
import android.view.KeyEvent;
import android.view.Menu;
import android.view.MenuItem;
import android.view.View;
import android.view.inputmethod.InputMethodManager;
import android.widget.AdapterView;
import android.widget.ArrayAdapter;
import android.widget.ListView;
import android.widget.TextView;

import com.joinmarrow.marrow.tasks.LogonTask;

import org.jdeferred.Deferred;
import org.jdeferred.DoneCallback;
import org.jdeferred.FailCallback;
import org.jdeferred.Promise;
import org.jdeferred.impl.DeferredObject;

import java.io.IOException;
import java.util.ArrayList;
import java.util.HashMap;
import java.util.List;

import us.monoid.json.JSONArray;
import us.monoid.json.JSONException;
import us.monoid.json.JSONObject;
import us.monoid.web.Resty;


public class MarrowActivity extends Activity {
    private TextView userNameText;
    private ListView linkList;
    private String username;
    private String password;
    private String marrowSite;
    public SharedPreferences sharedPref;

    private class MarrowItem {
        public String iTitle;
        public String iUrl;

        public MarrowItem(String title, String url) {
            iTitle = title;
            iUrl = url;
        }

        public String toString() {
            return iTitle;
        }
    }

    List<MarrowItem> linkData = new ArrayList<MarrowItem>();
    private class GetSubscriptions extends AsyncTask<String, Void, JSONObject> {
        protected JSONObject doInBackground(String... user) {
            JSONObject result = new JSONObject();
            if (null != user && password != "") {
                try {
                    result = new Resty()
                            .json(marrowSite.concat("/api/bones/subscriptions"))
                            .toObject();
                } catch (IOException | JSONException e) {
                    Log.e("marrow", e.getMessage());
                } finally {
                    Log.i("marrow", result.toString());
                }
            }
            return result;
        }

        protected void onPostExecute(JSONObject result) {
            ListView linkList = (ListView) findViewById(R.id.linkList);
            JSONArray data = new JSONArray();
            try {
                data = result.getJSONArray("marrow");
            } catch (JSONException e) {
                Log.i("marrow", "unexpected JSONException");
                e.printStackTrace();
                Log.d("marrow", result.toString());
            }
            linkData.clear();
            for (int x = 0; x < data.length(); x++) {
                try {
                    linkData.add(
                            new MarrowItem(
                                    data.getJSONObject(x).getString("title"),
                                    data.getJSONObject(x).getString("url")
                            )
                    );
                } catch (JSONException e) {
                    e.printStackTrace();
                }
            }
            ((ArrayAdapter<String>) linkList.getAdapter()).notifyDataSetChanged();

        }
    }

    private class GetBoneTask extends AsyncTask<String, Void, JSONObject> {
        protected JSONObject doInBackground(String... user) {
            JSONObject result = new JSONObject();
            if (null != user) {
                try {
                    result = new Resty()
                            .json(marrowSite.concat("/api/bones/u/").concat(user[0]))
                            .toObject();
                } catch (IOException | JSONException e) {
                    Log.e("marrow", e.getMessage());
                } finally {
                    Log.i("marrow", result.toString());
                }
            }
        return result;
        }

        protected void onPostExecute(JSONObject result) {
            ListView linkList = (ListView) findViewById(R.id.linkList);
            JSONArray data = new JSONArray();
            try {
                data = result.getJSONArray("marrow");
            } catch (JSONException e) {
                Log.i("marrow", "unexpected JSONException");
                e.printStackTrace();
                Log.d("marrow", result.toString());
            }
            linkData.clear();
            for (int x = 0; x < data.length(); x++) {
                try {
                    linkData.add(
                        new MarrowItem(
                            data.getJSONObject(x).getString("title"),
                            data.getJSONObject(x).getString("url")
                        )
                    );
                } catch (JSONException e) {
                    e.printStackTrace();
                }
            }
            ((ArrayAdapter<String>) linkList.getAdapter()).notifyDataSetChanged();

        }
    }

    public void goButtonClicked(View view) {
        String userName = userNameText.getText().toString().trim();
        new GetBoneTask().execute(userName);
        InputMethodManager imm = (InputMethodManager)getSystemService(Context.INPUT_METHOD_SERVICE);
        imm.hideSoftInputFromWindow(userNameText.getWindowToken(), 0);
    }
    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_marrow);
        userNameText = (TextView) findViewById(R.id.userName);
        userNameText.setOnEditorActionListener(new TextView.OnEditorActionListener() {
            @Override
            public boolean onEditorAction(TextView v, int actionId, KeyEvent event) {
                boolean result = false;
                if (v.getText() != "") {
                    goButtonClicked(v);
                    result = true;
                }
                return result;
            }
        });
        linkList = (ListView) findViewById(R.id.linkList);
        linkList.setAdapter(
            new ArrayAdapter<MarrowItem>(
                this,
                android.R.layout.simple_list_item_1,
                linkData
            )
        );
        linkList.setOnItemClickListener(new AdapterView.OnItemClickListener() {
            @Override
            public void onItemClick(AdapterView<?> parent, View view, int position, long id) {
                MarrowItem item = linkData.get(position);
                Log.i("Marrow", item.iUrl);
                Intent browserIntent = new Intent(Intent.ACTION_VIEW, Uri.parse(item.iUrl));
                startActivity(browserIntent);
            }
        });

        final MarrowActivity self = this;
        sharedPref = PreferenceManager.getDefaultSharedPreferences(this);
        username = sharedPref.getString("username", "test");
        password = sharedPref.getString("password", "");
        marrowSite  = sharedPref.getString("site", "https://joinmarrow.com");

        if (! password.equals("")) {
            Deferred<Boolean, Void, Void> waitForLogon = new DeferredObject();
            Promise<Boolean, Void, Void> logonPromise = waitForLogon.promise();
            new LogonTask(waitForLogon).execute(username, password, marrowSite);
            logonPromise.done(new DoneCallback<Boolean>() {
                @Override
                public void onDone(Boolean success) {
                    if (success) {
                        new GetSubscriptions().execute();
                    } else {
                        startActivity(new Intent(self, LoginActivity.class));
                    }
                }
            }).fail(new FailCallback<Void>() {
                @Override
                public void onFail(Void result) {
                    new GetBoneTask().execute(username);
                }
            });
        }

        SharedPreferences.OnSharedPreferenceChangeListener spl =
                new SharedPreferences.OnSharedPreferenceChangeListener() {
                    @Override
                    public void onSharedPreferenceChanged(SharedPreferences sharedPreferences,
                                                          String key) {
                        Log.i("marrow", key);
                        if (key.equals("username")) {
                            username = sharedPreferences.getString("username", "");
                        } else if (key.equals("password")) {
                            Log.i("marrow", "changing Password");
                            password = sharedPreferences.getString("password", "");
                            Deferred<Boolean, Void, Void> waitForLogon = new DeferredObject<Boolean, Void, Void>();
                            Promise<Boolean, Void, Void> logonPromise = waitForLogon.promise();
                            new LogonTask(waitForLogon).execute();
                            logonPromise.done(new DoneCallback<Boolean>() {
                                @Override
                                public void onDone(Boolean result) {
                                    if (result) {
                                        new GetSubscriptions().execute();
                                    } else {
                                        startActivity(new Intent(self, LoginActivity.class));
                                    }
                                }
                            });
                        } else if (key.equals("marrowSite")) {
                            marrowSite =  sharedPreferences.getString("site", "https://joinmarrow.com");
                        }
                    }
                };
        sharedPref.registerOnSharedPreferenceChangeListener(spl);
    }


    @Override
    public boolean onCreateOptionsMenu(Menu menu) {
        // Inflate the menu; this adds items to the action bar if it is present.
        getMenuInflater().inflate(R.menu.menu_marrow, menu);
        return true;
    }

    @Override
    public boolean onOptionsItemSelected(MenuItem item) {
        // Handle action bar item clicks here. The action bar will
        // automatically handle clicks on the Home/Up button, so long
        // as you specify a parent activity in AndroidManifest.xml.
        int id = item.getItemId();

        //noinspection SimplifiableIfStatement
        if (id == R.id.action_settings) {
            startActivity(new Intent(this, SettingsActivity.class));
            return true;
        }

        return super.onOptionsItemSelected(item);
    }
}