package com.ronakmanglani.watchlist.ui.fragment;
import android.content.Context;
import android.content.Intent;
import android.os.Bundle;
import android.support.annotation.Nullable;
import android.support.v4.app.Fragment;
import android.support.v4.content.ContextCompat;
import android.support.v7.widget.GridLayoutManager;
import android.support.v7.widget.LinearLayoutManager;
import android.support.v7.widget.RecyclerView;
import android.support.v7.widget.Toolbar;
import android.util.DisplayMetrics;
import android.view.KeyEvent;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.EditText;
import com.android.volley.Request;
import com.android.volley.Response;
import com.android.volley.VolleyError;
import com.android.volley.toolbox.JsonObjectRequest;
import com.ronakmanglani.watchlist.R;
import com.ronakmanglani.watchlist.WatchlistApp;
import com.ronakmanglani.watchlist.ui.activity.MovieDetailActivity;
import com.ronakmanglani.watchlist.ui.activity.SearchActivity;
import com.ronakmanglani.watchlist.ui.adapter.SearchAdapter;
import com.ronakmanglani.watchlist.model.Movie;
import com.ronakmanglani.watchlist.api.ApiHelper;
import com.ronakmanglani.watchlist.util.TextUtil;
import com.ronakmanglani.watchlist.api.VolleySingleton;
import com.ronakmanglani.watchlist.ui.view.PaddingDecorationView;
import org.json.JSONArray;
import org.json.JSONObject;
import butterknife.BindView;
import butterknife.BindBool;
import butterknife.ButterKnife;
import butterknife.OnClick;
import butterknife.Unbinder;
import static com.ronakmanglani.watchlist.ui.adapter.SearchAdapter.*;
public class SearchFragment extends Fragment implements OnMovieClickListener {
private Context context;
private Unbinder unbinder;
private String searchQuery;
private SearchAdapter adapter;
private LinearLayoutManager layoutManager;
private int pageToDownload;
private int totalPages;
private boolean isLoading;
private boolean isLoadingLocked;
@BindBool(R.bool.is_tablet) boolean isTablet;
@BindView(R.id.toolbar) Toolbar toolbar;
@BindView(R.id.search_bar) EditText searchBar;
@BindView(R.id.error_message) View errorMessage;
@BindView(R.id.progress_circle) View progressCircle;
@BindView(R.id.loading_more) View loadingMore;
@BindView(R.id.no_results) View noResults;
@BindView(R.id.search_list) RecyclerView recyclerView;
// Fragment lifecycle
@Override
public View onCreateView(LayoutInflater inflater, @Nullable ViewGroup container, @Nullable Bundle savedInstanceState) {
View v = inflater.inflate(R.layout.fragment_search_list, container, false);
context = getContext();
unbinder = ButterKnife.bind(this, v);
// Setup toolbar
toolbar.setNavigationIcon(ContextCompat.getDrawable(getActivity(), R.drawable.action_home));
toolbar.setNavigationOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View view) {
getActivity().onBackPressed();
}
});
searchBar.setOnKeyListener(new View.OnKeyListener() {
@Override
public boolean onKey(View view, int keyCode, KeyEvent event) {
if (event.getAction() == KeyEvent.ACTION_DOWN && keyCode == KeyEvent.KEYCODE_ENTER) {
String query = searchBar.getText().toString().trim();
if (query.length() > 0) {
// Set query string
searchQuery = query;
// Toggle visibility
recyclerView.setVisibility(View.GONE);
errorMessage.setVisibility(View.GONE);
loadingMore.setVisibility(View.GONE);
noResults.setVisibility(View.GONE);
progressCircle.setVisibility(View.VISIBLE);
// Set counters
pageToDownload = 1;
totalPages = 1;
// Download list
adapter = null;
searchMoviesList();
return true;
}
}
return false;
}
});
// Setup RecyclerView
layoutManager = new GridLayoutManager(context, getNumberOfColumns());
recyclerView.addItemDecoration(new PaddingDecorationView(context, R.dimen.recycler_item_padding));
recyclerView.setHasFixedSize(true);
recyclerView.setLayoutManager(layoutManager);
recyclerView.addOnScrollListener(new RecyclerView.OnScrollListener() {
@Override
public void onScrolled(RecyclerView recyclerView, int dx, int dy) {
super.onScrolled(recyclerView, dx, dy);
// Load more if RecyclerView has reached the end and isn't already loading
if (layoutManager.findLastVisibleItemPosition() == adapter.movieList.size() - 1 && !isLoadingLocked && !isLoading) {
if (pageToDownload < totalPages) {
loadingMore.setVisibility(View.VISIBLE);
searchMoviesList();
}
}
}
});
// Get the movies list
if (savedInstanceState != null && savedInstanceState.containsKey(WatchlistApp.MOVIE_LIST)) {
adapter = new SearchAdapter(context, this);
adapter.movieList = savedInstanceState.getParcelableArrayList(WatchlistApp.MOVIE_LIST);
recyclerView.setAdapter(adapter);
searchQuery = savedInstanceState.getString(WatchlistApp.SEARCH_QUERY);
pageToDownload = savedInstanceState.getInt(WatchlistApp.PAGE_TO_DOWNLOAD);
totalPages = savedInstanceState.getInt(WatchlistApp.TOTAL_PAGES);
isLoadingLocked = savedInstanceState.getBoolean(WatchlistApp.IS_LOCKED);
isLoading = savedInstanceState.getBoolean(WatchlistApp.IS_LOADING);
// Download again if stopped, else show list
if (isLoading) {
if (pageToDownload == 1) {
progressCircle.setVisibility(View.VISIBLE);
loadingMore.setVisibility(View.GONE);
recyclerView.setVisibility(View.GONE);
} else {
progressCircle.setVisibility(View.GONE);
loadingMore.setVisibility(View.VISIBLE);
recyclerView.setVisibility(View.VISIBLE);
}
searchMoviesList();
} else {
onDownloadSuccessful();
}
}
return v;
}
@Override
public void onSaveInstanceState(Bundle outState) {
super.onSaveInstanceState(outState);
if (layoutManager != null && adapter != null) {
outState.putBoolean(WatchlistApp.IS_LOADING, isLoading);
outState.putBoolean(WatchlistApp.IS_LOCKED, isLoadingLocked);
outState.putInt(WatchlistApp.PAGE_TO_DOWNLOAD, pageToDownload);
outState.putInt(WatchlistApp.TOTAL_PAGES, totalPages);
outState.putString(WatchlistApp.SEARCH_QUERY, searchQuery);
outState.putParcelableArrayList(WatchlistApp.MOVIE_LIST, adapter.movieList);
}
}
@Override
public void onDestroyView() {
super.onDestroyView();
VolleySingleton.getInstance().requestQueue.cancelAll(getClass().getName());
unbinder.unbind();
}
// Helper methods
public int getNumberOfColumns() {
// Get screen width
DisplayMetrics displayMetrics = getResources().getDisplayMetrics();
float widthPx = displayMetrics.widthPixels;
if (isTablet) {
widthPx = widthPx / 3;
}
float desiredPx = getResources().getDimensionPixelSize(R.dimen.movie_list_card_width);
int columns = Math.round(widthPx / desiredPx);
return columns > 1 ? columns : 1;
}
// JSON parsing and display
private void searchMoviesList() {
if (adapter == null) {
adapter = new SearchAdapter(context, this);
recyclerView.swapAdapter(adapter, true);
}
String urlToDownload = ApiHelper.getSearchMoviesLink(context, searchQuery, pageToDownload);
final JsonObjectRequest request = new JsonObjectRequest (
Request.Method.GET, urlToDownload, null,
new Response.Listener<JSONObject>() {
@Override
public void onResponse(JSONObject jsonObject) {
try {
JSONArray result = jsonObject.getJSONArray("results");
for (int i = 0; i < result.length(); i++) {
JSONObject movie = (JSONObject) result.get(i);
String poster = movie.getString("poster_path");
String overview = movie.getString("overview");
String year = movie.getString("release_date");
if (!TextUtil.isNullOrEmpty(year)) {
year = year.substring(0, 4);
}
String id = movie.getString("id");
String title = movie.getString("title");
String backdrop = movie.getString("backdrop_path");
String rating = movie.getString("vote_average");
Movie thumb = new Movie(id, title, year, overview, rating, poster, backdrop);
adapter.movieList.add(thumb);
}
// Load detail fragment if in tablet mode
if (isTablet && pageToDownload == 1 && adapter.movieList.size() > 0) {
((SearchActivity)getActivity()).loadDetailFragmentWith(adapter.movieList.get(0).id);
}
// Update counters
pageToDownload = jsonObject.getInt("page") + 1;
totalPages = jsonObject.getInt("total_pages");
// Display search results
onDownloadSuccessful();
} catch (Exception ex) {
// JSON parsing error
onDownloadFailed();
}
}
},
new Response.ErrorListener() {
@Override
public void onErrorResponse(VolleyError volleyError) {
// Network error
onDownloadFailed();
}
});
isLoading = true;
request.setTag(this.getClass().getName());
VolleySingleton.getInstance().requestQueue.add(request);
}
private void onDownloadSuccessful() {
isLoading = false;
errorMessage.setVisibility(View.GONE);
progressCircle.setVisibility(View.GONE);
loadingMore.setVisibility(View.GONE);
if (adapter.movieList.size() == 0) {
noResults.setVisibility(View.VISIBLE);
recyclerView.setVisibility(View.GONE);
} else {
noResults.setVisibility(View.GONE);
recyclerView.setVisibility(View.VISIBLE);
}
adapter.notifyDataSetChanged();
}
private void onDownloadFailed() {
isLoading = false;
if (pageToDownload == 1) {
progressCircle.setVisibility(View.GONE);
loadingMore.setVisibility(View.GONE);
noResults.setVisibility(View.GONE);
recyclerView.setVisibility(View.GONE);
errorMessage.setVisibility(View.VISIBLE);
} else {
progressCircle.setVisibility(View.GONE);
loadingMore.setVisibility(View.GONE);
errorMessage.setVisibility(View.GONE);
noResults.setVisibility(View.GONE);
recyclerView.setVisibility(View.VISIBLE);
isLoadingLocked = true;
}
}
// Click events
@OnClick(R.id.try_again)
public void onTryAgainClicked() {
// Hide all views
errorMessage.setVisibility(View.GONE);
noResults.setVisibility(View.GONE);
recyclerView.setVisibility(View.GONE);
// Show progress circle
progressCircle.setVisibility(View.VISIBLE);
// Try to download the data again
pageToDownload = 1;
totalPages = 1;
adapter = null;
searchMoviesList();
}
@Override
public void onMovieClicked(int position) {
if (isTablet) {
((SearchActivity)getActivity()).loadDetailFragmentWith(adapter.movieList.get(position).id);
} else {
Intent intent = new Intent(context, MovieDetailActivity.class);
intent.putExtra(WatchlistApp.MOVIE_ID, adapter.movieList.get(position).id);
startActivity(intent);
}
}
}