package com.gh.gamecenter;

import android.content.Context;
import android.content.Intent;
import android.os.Bundle;
import android.os.Handler;
import android.support.annotation.NonNull;
import android.support.v7.widget.LinearLayoutManager;
import android.support.v7.widget.RecyclerView;
import android.text.Html;
import android.util.DisplayMetrics;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.view.inputmethod.InputMethodManager;
import android.widget.EditText;
import android.widget.LinearLayout;
import android.widget.TextView;
import android.widget.Toast;

import com.gh.base.BaseActivity;
import com.gh.common.util.DataCollectionUtils;
import com.gh.common.util.DataUtils;
import com.gh.common.util.EntranceUtils;
import com.gh.common.util.NewsUtils;
import com.gh.common.view.VerticalItemDecoration;
import com.gh.gamecenter.adapter.viewholder.FooterViewHolder;
import com.gh.gamecenter.adapter.viewholder.NewsTextViewHolder;
import com.gh.gamecenter.entity.NewsEntity;
import com.gh.gamecenter.retrofit.Response;
import com.gh.gamecenter.retrofit.RetrofitManager;

import java.util.ArrayList;
import java.util.HashMap;
import java.util.List;
import java.util.Map;

import butterknife.BindView;
import retrofit2.HttpException;
import rx.android.schedulers.AndroidSchedulers;
import rx.functions.Func1;
import rx.schedulers.Schedulers;

/**
 * Created by khy on 2016/8/22.
 * 新闻搜索界面
 */
public class NewsSearchActivity extends BaseActivity {

    @BindView(R.id.gamedetail_news_rv)
    RecyclerView mNewsSearchRv;
    @BindView(R.id.tv_search)
    TextView mNewsSearchTv;
    @BindView(R.id.reuse_none_data)
    LinearLayout mNoneData;
    @BindView(R.id.et_search)
    EditText mNewsSearchEt;
    @BindView(R.id.gamedetail_news_ll_loading)
    LinearLayout mLoading;
    @BindView(R.id.reuse_no_connection)
    LinearLayout mNoConn;

    private LinearLayoutManager layoutManager;
    private List<NewsEntity> newsEntities;
    private NewsSearchAdapter searchAdapter;

    private boolean isLoadOver = true;
    private boolean isRemove = false;
    private boolean isNetworkError = false;

    private String searchKey;
    private String gameId;

    private Handler handler = new Handler();

    private int page = 1;

    @NonNull
    public static Intent getIntent(Context context, String gameName, String searchKey, String gameId, String entrance) {
        Intent intent = new Intent(context, NewsSearchActivity.class);
        intent.putExtra("gameName", gameName);
        intent.putExtra("searchKey", searchKey);
        intent.putExtra("gameId", gameId);
        intent.putExtra(EntranceUtils.KEY_ENTRANCE, entrance);
        return intent;
    }


    @Override
    protected int getLayoutId() {
        return R.layout.activity_gamedetail_news;
    }

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);

        Intent intent = getIntent();
        String gameName = intent.getExtras().getString("gameName");
        searchKey = intent.getExtras().getString("searchKey");
        gameId = intent.getExtras().getString("gameId");

        initTitle(gameName);

        DisplayMetrics outMetrics = new DisplayMetrics();
        getWindowManager().getDefaultDisplay().getMetrics(outMetrics);

        newsEntities = new ArrayList<>();
        searchAdapter = new NewsSearchAdapter();

        layoutManager = new LinearLayoutManager(this);

        mNewsSearchRv.setLayoutManager(layoutManager);
        mNewsSearchRv.setAdapter(searchAdapter);
        mNewsSearchRv.addItemDecoration(new VerticalItemDecoration(NewsSearchActivity.this, 1, false));

        mNewsSearchEt.setText(searchKey);

        loadNewsData(page);

        mNewsSearchTv.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {
                searchKey = mNewsSearchEt.getText().toString().trim();
                if (searchKey.length() >= 1) {
                    newsEntities.clear();
                    searchAdapter.notifyDataSetChanged();
                    mLoading.setVisibility(View.VISIBLE);
                    mNoneData.setVisibility(View.GONE);
                    InputMethodManager imm = (InputMethodManager) getSystemService(Context.INPUT_METHOD_SERVICE);
                    imm.hideSoftInputFromWindow(v.getWindowToken(), 0);
                    handler.postDelayed(new Runnable() {
                        @Override
                        public void run() {
                            page = 1;
                            loadNewsData(page);
                        }
                    }, 500);

                } else {
                    Toast.makeText(NewsSearchActivity.this, "请输入关键字", Toast.LENGTH_SHORT).show();
                }

            }
        });

        mNewsSearchRv.addOnScrollListener(new RecyclerView.OnScrollListener() {
            @Override
            public void onScrollStateChanged(RecyclerView recyclerView, int newState) {
                super.onScrollStateChanged(recyclerView, newState);
                if (newState == RecyclerView.SCROLL_STATE_IDLE && layoutManager.findLastVisibleItemPosition() + 1 == searchAdapter.getItemCount()
                        && isLoadOver && !isRemove && !isNetworkError) {
                    isLoadOver = false;
                    page++;
                    loadNewsData(page);
                }
            }
        });

        mNoConn.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {
                mNoConn.setVisibility(View.GONE);
                mLoading.setVisibility(View.VISIBLE);
                handler.postDelayed(new Runnable() {
                    @Override
                    public void run() {
                        loadNewsData(1);
                    }
                }, 1000);
            }
        });

    }

    @Override
    protected void onDestroy() {
        super.onDestroy();
        handler.removeCallbacksAndMessages(null);
    }

    private void loadNewsData(final int page) {
//        DataUtils.onEvent(this, "游戏新闻搜索", searchKey);
//        DataCollectionUtils.uploadSearch(this, searchKey, "游戏新闻搜索");

        RetrofitManager.getInstance(this).getApi().getSearchNews(gameId, searchKey, page, 20)
                .map(new Func1<List<NewsEntity>, List<NewsEntity>>() {
                    @Override
                    public List<NewsEntity> call(List<NewsEntity> list) {
                        // 去掉重复数据
                        return NewsUtils.removeDuplicateData(newsEntities, list);
                    }
                })
                .subscribeOn(Schedulers.io())
                .observeOn(AndroidSchedulers.mainThread())
                .subscribe(new Response<List<NewsEntity>>() {
                    @Override
                    public void onResponse(List<NewsEntity> response) {
                        isLoadOver = true;
                        mLoading.setVisibility(View.GONE);
                        mNoneData.setVisibility(View.GONE);

                        if (response.size() != 0) {
                            newsEntities.addAll(response);
                            searchAdapter.notifyDataSetChanged();
                        } else {
                            if (page == 1) {
                                mNoneData.setVisibility(View.VISIBLE);
                            }

                            isRemove = true;
                            searchAdapter.notifyItemChanged(searchAdapter.getItemCount() - 1);
                        }

                        if (response.size() < 20) {
                            isRemove = true;
                        }
                    }

                    @Override
                    public void onFailure(HttpException e) {
                        if (page == 1) {
                            mNoConn.setVisibility(View.VISIBLE);
                            mLoading.setVisibility(View.GONE);
                        }
                        isLoadOver = true;
                        toast("加载失败，请检查网络状态");
                        isNetworkError = true;
                        searchAdapter.notifyItemChanged(searchAdapter.getItemCount() - 1);
                    }
                });
    }

    public class NewsSearchAdapter extends RecyclerView.Adapter<RecyclerView.ViewHolder> {
        @Override
        public RecyclerView.ViewHolder onCreateViewHolder(ViewGroup parent, int viewType) {
            if (viewType == 0) {
                View view = LayoutInflater.from(parent.getContext()).inflate(
                        R.layout.refresh_footerview, parent, false);
                return new FooterViewHolder(view);
            } else {
                View view = LayoutInflater.from(parent.getContext()).inflate(
                        R.layout.news_text_item, parent, false);
                return new NewsTextViewHolder(view);
            }
        }

        @Override
        public void onBindViewHolder(final RecyclerView.ViewHolder holder, int position) {
            if (holder instanceof NewsTextViewHolder) {
                NewsTextViewHolder viewHolder = (NewsTextViewHolder) holder;
                viewHolder.title.setText(Html.fromHtml(newsEntities.get(position).getTitle()));
                viewHolder.type.setVisibility(View.GONE);
                viewHolder.line.setVisibility(View.GONE);
                viewHolder.itemView.setOnClickListener(new View.OnClickListener() {
                    @Override
                    public void onClick(View v) {
                        NewsEntity newsEntity = newsEntities.get(holder.getPosition());

                        Map<String, Object> kv = new HashMap<>();
                        kv.put("名字", newsEntity.getTitle());
                        kv.put("位置", String.valueOf(holder.getPosition() + 1));
                        DataUtils.onEvent(NewsSearchActivity.this, "点击", "游戏新闻搜索", kv);

                        DataCollectionUtils.uploadClick(NewsSearchActivity.this,
                                "列表", "游戏新闻搜索", newsEntity.getTitle());

                        // 统计阅读量
                        NewsUtils.statNewsViews(NewsSearchActivity.this, newsEntity.getId());
                        NewsDetailActivity.startNewsDetailActivity(NewsSearchActivity.this, newsEntity,
                                mEntrance + "+(游戏新闻搜索[" + searchKey + "])");
                    }
                });
            } else if (holder instanceof FooterViewHolder) {
                FooterViewHolder viewHolder = (FooterViewHolder) holder;
                viewHolder.itemView.setPadding(0, 0, 0, 0);
                if (isNetworkError) {
                    viewHolder.loading.setVisibility(View.GONE);
                    viewHolder.hint.setText(R.string.loading_failed_retry);
                    viewHolder.itemView.setClickable(true);
                    viewHolder.itemView.setOnClickListener(new View.OnClickListener() {
                        @Override
                        public void onClick(View v) {
                            isNetworkError = false;
                            notifyItemChanged(getItemCount() - 1);
                            loadNewsData(page);
                        }
                    });
                } else if (isRemove) {
                    viewHolder.loading.setVisibility(View.GONE);
                    viewHolder.hint.setText(R.string.loading_complete);
                    viewHolder.itemView.setClickable(false);
                } else {
                    viewHolder.loading.setVisibility(View.VISIBLE);
                    viewHolder.hint.setText(R.string.loading);
                    viewHolder.itemView.setClickable(false);
                }
            }

        }

        @Override
        public int getItemViewType(int position) {
            if (position == newsEntities.size()) {
                return 0;
            } else {
                return 1;
            }
        }

        @Override
        public int getItemCount() {
            if (newsEntities.isEmpty()) {
                return 0;
            }
            return newsEntities.size() + 1;
        }

    }
}