/*
 * Copyright (c) 2020 WildFireChat. All rights reserved.
 */

package cn.wildfire.chat.kit.search;

import android.Manifest;
import android.content.Context;
import android.content.Intent;
import android.os.Build;
import android.os.Bundle;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.view.inputmethod.InputMethodManager;
import android.widget.ImageView;
import android.widget.LinearLayout;
import androidx.annotation.NonNull;
import androidx.annotation.Nullable;
import androidx.fragment.app.Fragment;
import androidx.lifecycle.Observer;
import androidx.lifecycle.ViewModelProviders;
import androidx.recyclerview.widget.LinearLayoutManager;
import androidx.recyclerview.widget.RecyclerView;
import butterknife.BindView;
import butterknife.ButterKnife;
import butterknife.OnClick;
import cn.wildfire.chat.kit.R;
import cn.wildfire.chat.kit.R2;
import cn.wildfire.chat.kit.WfcScheme;
import cn.wildfire.chat.kit.qrcode.QRCodeActivity;
import cn.wildfire.chat.kit.qrcode.ScanQRCodeActivity;
import cn.wildfire.chat.kit.user.UserViewModel;
import cn.wildfirechat.model.UserInfo;

import java.util.List;

public class SearchFragment extends Fragment {
    @BindView(R2.id.recyclerView)
    RecyclerView recyclerView;
    @BindView(R2.id.emptyLinearLayout)
    LinearLayout emptyLinearLayout;
    @BindView(R2.id.descLinearLayout)
    LinearLayout descLinearLayout;

    @BindView(R2.id.ll_fast_option)
    LinearLayout mLlFastOption;
    @BindView(R2.id.iv_mine_card)
    ImageView mIvMineCard;
    @BindView(R2.id.iv_scan)
    ImageView mIvScan;

    private static final int REQUEST_CODE_SCAN_QR_CODE = 100;
    private static final int REQUEST_IGNORE_BATTERY_CODE = 101;

    private SearchResultAdapter adapter;
    private SearchViewModel searchViewModel;
    private Observer<SearchResult> searchResultObserver = this::onSearchResult;
    private InputMethodManager inputManager;

    private boolean hideSearchDescView = false;

    public static final String HIDE_SEARCH_DESC_VIEW = "hideSearchDescView";
    private SearchActivity activity;

    @Override
    public void onCreate(@Nullable Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        Bundle args = getArguments();
        hideSearchDescView = args != null && args.getBoolean(HIDE_SEARCH_DESC_VIEW);
        activity = (SearchActivity) getActivity();

    }


    @Nullable
    @Override
    public View onCreateView(@NonNull LayoutInflater inflater, @Nullable ViewGroup container, @Nullable Bundle savedInstanceState) {
        View view = inflater.inflate(R.layout.search_fragment, container, false);
        searchViewModel = ViewModelProviders.of(this).get(SearchViewModel.class);
        searchViewModel.getResultLiveData().observeForever(searchResultObserver);
        ButterKnife.bind(this, view);
        inputManager = (InputMethodManager) getActivity().getSystemService(Context.INPUT_METHOD_SERVICE);
        recyclerView.addOnScrollListener(new RecyclerView.OnScrollListener() {
            @Override
            public void onScrollStateChanged(RecyclerView recyclerView, int newState) {
                inputManager.hideSoftInputFromWindow(view.getWindowToken(), 0);
            }
        });
        descLinearLayout.setVisibility(hideSearchDescView ? View.GONE : View.VISIBLE);
        return view;
    }

    public void  showFastOption() {
        if (mLlFastOption != null) {
            mLlFastOption.setVisibility(View.VISIBLE);
        }

    }

    @Override
    public void onDestroyView() {
        super.onDestroyView();
        searchViewModel.getResultLiveData().removeObserver(searchResultObserver);
    }

    public void search(String keyword, List<SearchableModule> searchableModules) {
        if (adapter != null) {
            adapter.reset();
        }
        descLinearLayout.setVisibility(View.GONE);
        searchViewModel.search(keyword, searchableModules);
    }

    public void reset() {
        if (adapter != null) {
            adapter.reset();
        }
        descLinearLayout.setVisibility(View.VISIBLE);
        emptyLinearLayout.setVisibility(View.GONE);
        recyclerView.setVisibility(View.GONE);
    }

    private void onSearchResult(SearchResult result) {
        if (result == null) {
            recyclerView.setVisibility(View.GONE);
            emptyLinearLayout.setVisibility(View.VISIBLE);
            return;
        } else {
            recyclerView.setVisibility(View.VISIBLE);
            emptyLinearLayout.setVisibility(View.GONE);
        }
        if (adapter == null) {
            adapter = new SearchResultAdapter(this);
            recyclerView.setAdapter(adapter);
            recyclerView.setLayoutManager(new LinearLayoutManager(getActivity()));
        }
        adapter.submitSearResult(result);
    }


    @OnClick({R2.id.iv_mine_card, R2.id.iv_scan})
    public void onViewClick(View view) {
        int id = view.getId();
        if (id == R.id.iv_mine_card) {
            showUserQRCode();
        } else if (id == R.id.iv_scan) {
            String[] permissions = new String[]{Manifest.permission.CAMERA};
            if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.M) {
                if (!activity.checkPermission(permissions)) {
                    requestPermissions(permissions, 100);
                }
            }
            startActivityForResult(new Intent(getActivity(), ScanQRCodeActivity.class), REQUEST_CODE_SCAN_QR_CODE);
        }
    }

    private void showUserQRCode() {
        UserViewModel userViewModel = ViewModelProviders.of(this).get(UserViewModel.class);
        UserInfo userInfo = userViewModel.getUserInfo(userViewModel.getUserId(), false);
        String qrCodeValue = WfcScheme.QR_CODE_PREFIX_USER + userInfo.uid;
        startActivity(QRCodeActivity.buildQRCodeIntent(getActivity(), "我的名片", userInfo.portrait, qrCodeValue));

    }
}