PartyListActivity.java

package org.maepaysoh.maepaysoh.ui;

import android.content.Intent;
import android.graphics.PorterDuff;
import android.os.AsyncTask;
import android.os.Bundle;
import android.support.v7.app.ActionBar;
import android.support.v7.widget.LinearLayoutManager;
import android.support.v7.widget.RecyclerView;
import android.support.v7.widget.Toolbar;
import android.view.Menu;
import android.view.MenuItem;
import android.view.View;
import android.widget.Button;
import android.widget.ProgressBar;
import android.widget.TextView;
import android.widget.Toast;
import java.sql.SQLException;
import java.util.List;
import org.maepaysoh.maepaysoh.MaePaySoh;
import org.maepaysoh.maepaysoh.R;
import org.maepaysoh.maepaysoh.adapters.PartyAdapter;
import org.maepaysoh.maepaysoh.utils.InternetUtils;
import org.maepaysoh.maepaysoh.utils.ViewUtils;
import org.maepaysoh.maepaysohsdk.MaePaySohApiWrapper;
import org.maepaysoh.maepaysohsdk.PartyAPIHelper;
import org.maepaysoh.maepaysohsdk.db.PartyDao;
import org.maepaysoh.maepaysohsdk.models.Party;
import org.maepaysoh.maepaysohsdk.models.PartyListReturnObject;
import retrofit.Callback;
import retrofit.RetrofitError;
import retrofit.client.Response;

public class PartyListActivity extends BaseActivity implements PartyAdapter.ClickInterface,
    android.support.v7.widget.SearchView.OnQueryTextListener {
  private RecyclerView mPartyListRecyclerView;
  private ProgressBar mProgressView;
  private View mErrorView;
  private Button mRetryBtn;
  private List<Party> mParties;
  private PartyAdapter mPartyAdapter;

  private ViewUtils viewUtils;
  private PartyDao mPartyDao;
  private PartyAPIHelper mPartyAPIHelper;
  private DownloadPartyListAsync mDownloadPartyListAsync;
  private MenuItem mSearchMenu;
  private android.support.v7.widget.SearchView mSearchView;

  @Override protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.activity_party_list);

    Toolbar mToolbar = (Toolbar) findViewById(R.id.party_list_toolbar);
    View mToolbarShadow = findViewById(R.id.party_list_toolbar_shadow);
    mErrorView = findViewById(R.id.party_list_error_view);
    mPartyListRecyclerView = (RecyclerView) findViewById(R.id.party_list_recycler_view);
    mProgressView = (ProgressBar) findViewById(R.id.party_list_progress_bar);
    mRetryBtn = (Button) mErrorView.findViewById(R.id.error_view_retry_btn);

    mProgressView.getIndeterminateDrawable()
        .setColorFilter(getResources().getColor(R.color.primary), PorterDuff.Mode.SRC_ATOP);

    mToolbar.setTitle(getString(R.string.PartyList));
    hideToolBarShadowForLollipop(mToolbar, mToolbarShadow);

    setSupportActionBar(mToolbar);

    ActionBar mActionBar = getSupportActionBar();
    if (mActionBar != null) {
      // Showing Back Arrow  <-
      mActionBar.setDisplayHomeAsUpEnabled(true);
    }

    viewUtils = new ViewUtils(this);

    // Show Progress on start
    viewUtils.showProgress(mPartyListRecyclerView, mProgressView, true);
    LinearLayoutManager mLayoutManager = new LinearLayoutManager(this);
    mPartyListRecyclerView.setLayoutManager(mLayoutManager);
    mPartyAdapter = new PartyAdapter();
    mPartyListRecyclerView.setAdapter(mPartyAdapter);
    MaePaySohApiWrapper wrapper = MaePaySoh.getMaePaySohWrapper();
    mPartyAPIHelper = wrapper.getPartyApiHelper();
    mPartyDao = new PartyDao(this);
    if (InternetUtils.isNetworkAvailable(this)) {
      //downloadPartyList();
      downloadListSync();
    } else {
      loadFromCache();
    }

    mRetryBtn.setOnClickListener(new View.OnClickListener() {
      @Override public void onClick(View v) {
        downloadListSync();
      }
    });
  }

  @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_faq, menu);
    mSearchMenu = menu.findItem(R.id.menu_search);
    mSearchView = (android.support.v7.widget.SearchView) mSearchMenu.getActionView();
    mSearchView.setOnQueryTextListener(this);
    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 == android.R.id.home) {
      onBackPressed();
    }

    return super.onOptionsItemSelected(item);
  }

  @Override public void onItemClick(View view, int position) {
    Intent goToPartyDetailIntent = new Intent();
    goToPartyDetailIntent.setClass(PartyListActivity.this, PartyDetailActivity.class);
    goToPartyDetailIntent.putExtra(PartyDetailActivity.PARTY_CONSTANT, mParties.get(position));
    startActivity(goToPartyDetailIntent);
  }

  private void downloadPartyList() {
    mPartyAPIHelper.getPartiesAsync(new Callback<PartyListReturnObject>() {
      @Override public void success(PartyListReturnObject returnObject, Response response) {
        // Hide Progress on success
        viewUtils.showProgress(mPartyListRecyclerView, mProgressView, false);
        switch (response.getStatus()) {
          case 200:
            mParties = returnObject.getData();
            mPartyAdapter.setParties(mParties);
            mPartyAdapter.setOnItemClickListener(PartyListActivity.this);
            for (Party data : mParties) {
              try {
                mPartyDao.createParty(data);
              } catch (SQLException e) {
                e.printStackTrace();
              }
            }
            break;
        }
      }

      @Override public void failure(RetrofitError error) {
        switch (error.getKind()) {
          case HTTP:
            org.maepaysoh.maepaysohsdk.models.Error mError =
                (org.maepaysoh.maepaysohsdk.models.Error) error.getBodyAs(Error.class);
            Toast.makeText(PartyListActivity.this, mError.getError().getMessage(),
                Toast.LENGTH_SHORT).show();
            break;
          case NETWORK:
            Toast.makeText(PartyListActivity.this, getString(R.string.PleaseCheckNetwork),
                Toast.LENGTH_SHORT).show();
            break;
          case CONVERSION:
            Toast.makeText(PartyListActivity.this, getString(R.string.SomethingWentWrong),
                Toast.LENGTH_SHORT).show();
        }

        // Hide Progress on failure too
        //  viewUtils.showProgress(mPartyListRecyclerView, mProgressView, false);
        //  mErrorView.setVisibility(View.VISIBLE);
        loadFromCache();
      }
    });
  }

  private void loadFromCache() {
    //mParties = mPartyDao.getAllPartyData();
    mParties = mPartyAPIHelper.getPartiesFromCache();
    if (mParties != null && mParties.size() > 0) {
      viewUtils.showProgress(mPartyListRecyclerView, mProgressView, false);
      mPartyAdapter.setParties(mParties);
      mPartyAdapter.setOnItemClickListener(PartyListActivity.this);
    } else {
      viewUtils.showProgress(mPartyListRecyclerView, mProgressView, false);
      mErrorView.setVisibility(View.VISIBLE);
    }
  }

  private void searchFromCache(String keyword) {
    TextView errorText = (TextView) mErrorView.findViewById(R.id.error_view_error_text);
    errorText.setText(getString(R.string.PleaseCheckNetworkAndTryAgain));
    mRetryBtn.setVisibility(View.VISIBLE);
    if (mErrorView.getVisibility() == View.VISIBLE) {
      mErrorView.setVisibility(View.GONE);
    }

    if (keyword.length() > 0) {
      mPartyListRecyclerView.setVisibility(View.VISIBLE);
      mErrorView.setVisibility(View.GONE);
      mParties = mPartyAPIHelper.searchPartiesFromCache(keyword);
      if (mParties != null && mParties.size() > 0) {
        mPartyAdapter.setParties(mParties);
        mPartyAdapter.setOnItemClickListener(PartyListActivity.this);
      } else {
        mPartyListRecyclerView.setVisibility(View.GONE);
        mErrorView.setVisibility(View.VISIBLE);
        mRetryBtn.setVisibility(View.GONE);
        errorText.setText(R.string.search_not_found);
      }
    } else {
      downloadPartyList();
    }
  }

  private void downloadListSync() {
    mDownloadPartyListAsync = new DownloadPartyListAsync();
    mDownloadPartyListAsync.execute();
  }

  @Override public boolean onQueryTextSubmit(String query) {
    return true;
  }

  @Override public boolean onQueryTextChange(String newText) {
    searchFromCache(newText);
    return true;
  }

  @Override protected void onPause() {
    super.onPause();
    if (mDownloadPartyListAsync != null) {
      mDownloadPartyListAsync.cancel(true);
    }
  }

  class DownloadPartyListAsync extends AsyncTask<Void, Void, List<Party>> {
    @Override protected void onPreExecute() {
      super.onPreExecute();
      mErrorView.setVisibility(View.GONE);
    }

    @Override protected List<Party> doInBackground(Void... voids) {
      return mPartyAPIHelper.getParties();
    }

    @Override protected void onPostExecute(List<Party> parties) {
      viewUtils.showProgress(mPartyListRecyclerView, mProgressView, false);
      if (parties.size() > 0) {
        mParties = parties;
        mPartyAdapter.setParties(mParties);
        mPartyAdapter.setOnItemClickListener(PartyListActivity.this);
      } else {
        Toast.makeText(PartyListActivity.this, getString(R.string.PleaseCheckNetwork),
            Toast.LENGTH_SHORT).show();
        loadFromCache();
      }
      super.onPostExecute(parties);
    }
  }
}