package com.alorma.github.ui.fragment.commit;

import android.os.Bundle;
import android.view.LayoutInflater;
import com.alorma.github.R;
import com.alorma.github.sdk.bean.dto.response.CommitComment;
import com.alorma.github.sdk.bean.info.CommitInfo;
import com.alorma.github.sdk.services.client.GithubListClient;
import com.alorma.github.sdk.services.commit.GetCommitCommentsClient;
import com.alorma.github.ui.adapter.commit.CommitCommentAdapter;
import com.alorma.github.ui.fragment.base.LoadingListFragment;
import com.alorma.gitskarios.core.Pair;
import com.mikepenz.octicons_typeface_library.Octicons;
import java.util.List;
import rx.Observer;
import rx.android.schedulers.AndroidSchedulers;
import rx.functions.Func1;
import rx.schedulers.Schedulers;

public class CommitCommentsFragment extends LoadingListFragment<CommitCommentAdapter> implements Observer<List<CommitComment>> {

  private static final String INFO = "INFO";
  private CommitInfo info;

  public static CommitCommentsFragment newInstance(CommitInfo info) {
    CommitCommentsFragment f = new CommitCommentsFragment();
    Bundle b = new Bundle();
    b.putParcelable(INFO, info);
    f.setArguments(b);
    return f;
  }

  @Override
  protected void executeRequest() {
    super.executeRequest();
    if (info != null) {
      setAction(new GetCommitCommentsClient(info));
    }
  }

  @Override
  protected int getLightTheme() {
    return R.style.AppTheme_Repository;
  }

  @Override
  protected int getDarkTheme() {
    return R.style.AppTheme_Dark_Repository;
  }

  @Override
  protected void executePaginatedRequest(int page) {
    super.executePaginatedRequest(page);
    if (info != null) {
      setAction(new GetCommitCommentsClient(info, page));
    }
  }

  private void setAction(GithubListClient<List<CommitComment>> client) {
    client.observable()
        .subscribeOn(Schedulers.io())
        .observeOn(AndroidSchedulers.mainThread())
        .map(new Func1<Pair<List<CommitComment>, Integer>, List<CommitComment>>() {
          @Override
          public List<CommitComment> call(Pair<List<CommitComment>, Integer> listIntegerPair) {
            setPage(listIntegerPair.second);
            return listIntegerPair.first;
          }
        })
        .subscribe(this);
  }

  @Override
  public void onCompleted() {

  }

  @Override
  public void onError(Throwable e) {

  }

  @Override
  public void onNext(List<CommitComment> commitComments) {
    if (commitComments != null && commitComments.size() > 0) {
      hideEmpty();
      if (getAdapter() != null) {
        getAdapter().addAll(commitComments);
      } else {
        CommitCommentAdapter commentsAdapter = new CommitCommentAdapter(LayoutInflater.from(getActivity()), info.repoInfo);
        setAdapter(commentsAdapter);
      }
    } else if (getAdapter() == null || getAdapter().getItemCount() == 0) {
      setEmpty();
    }
  }

  @Override
  protected void loadArguments() {
    info = (CommitInfo) getArguments().getParcelable(INFO);
  }

  @Override
  protected Octicons.Icon getNoDataIcon() {
    return Octicons.Icon.oct_comment_discussion;
  }

  @Override
  protected int getNoDataText() {
    return R.string.no_commit_comments;
  }
}