package com.community.pocket.ui.main.ui.forum.data;

import android.app.Activity;
import android.content.Intent;
import android.os.Bundle;
import android.os.Handler;
import android.os.Looper;
import android.os.Message;
import android.text.Editable;
import android.text.format.DateFormat;
import android.view.View;
import android.view.ViewGroup;
import android.widget.Button;
import android.widget.EditText;
import android.widget.LinearLayout;
import android.widget.TextView;
import android.widget.Toast;

import androidx.annotation.NonNull;
import androidx.appcompat.app.AlertDialog;
import androidx.constraintlayout.widget.ConstraintLayout;
import androidx.lifecycle.Observer;
import androidx.lifecycle.ViewModelProvider;

import com.community.pocket.R;
import com.community.pocket.data.model.ForumContent;
import com.community.pocket.ui.BaseActivity;
import com.community.pocket.ui.listener.MyTextChange;
import com.community.pocket.ui.main.ui.share.Response;
import com.community.pocket.ui.main.ui.share.ShowWordCount;
import com.community.pocket.util.Param;

import org.xutils.view.annotation.ContentView;
import org.xutils.view.annotation.Event;
import org.xutils.view.annotation.ViewInject;

import java.util.List;

/**
 * 帖子详情界面
 */
@ContentView(R.layout.activity_forum_data)
public class ForumDataActivity extends BaseActivity {

    //第一楼布局
    @ViewInject(R.id.first_layout)
    private ConstraintLayout firstLayout;

    //回复楼层布局
    @ViewInject(R.id.reply_layout)
    private LinearLayout replyLayout;

    //回帖文本输入框
    private EditText editText;

    private ForumDataViewModel viewModel;

    //回帖按钮
    private Button reply;

    //弹窗控制
    private Handler handler;

    //打开回贴弹窗按钮
    @ViewInject(R.id.open_reply)
    private Button openReply;

    //帖子id
    private String forumId;

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

        viewModel = new ViewModelProvider(this, new ViewModelProvider.NewInstanceFactory()).get(ForumDataViewModel.class);

        Intent intent = getIntent();
        forumId = intent.getStringExtra(Param.forumId.name());
        if (forumId == null) {
            Toast.makeText(getApplicationContext(), R.string.forum_data_fail, Toast.LENGTH_LONG).show();
            finish();
        } else {
            viewModel.loadData(forumId);

            //监听回帖表单状态
            viewModel.getForumReplyState().observe(this, new Observer<ForumReplyState>() {
                @Override
                public void onChanged(ForumReplyState forumReplyState) {
                    if (forumReplyState == null) {
                        return;
                    }

                    if (forumReplyState.getContentError() != null) {
                        editText.setError(getString(forumReplyState.getContentError()));
                    }

                    reply.setEnabled(forumReplyState.isDataValid());
                }
            });

            //监听回帖状态
            viewModel.getReplayResponse().observe(this, new Observer<ForumDataResponse>() {
                @Override
                public void onChanged(ForumDataResponse forumDataResponse) {
                    if (forumDataResponse == null) {
                        return;
                    }

                    forumDataResponse.toast(getBaseContext());

                    if (forumDataResponse.getResult() == Response.Result.OK) {
                        handler.sendEmptyMessage(0);
                        viewModel.loadData(forumId);
                    }
                }
            });

            //监听帖子详情数据
            viewModel.getForumContentResponse().observe(this, new Observer<ForumDataResponse>() {
                @Override
                public void onChanged(ForumDataResponse listForumDataResponse) {
                    if (listForumDataResponse == null) {
                        return;
                    }

                    listForumDataResponse.toast(getBaseContext());

                    if (listForumDataResponse.getResult() == Response.Result.OK) {
                        List<ForumContent> forumContents = listForumDataResponse.getForumContentList();
                        initFirst(forumContents.get(0));
                        if (forumContents.size() > 1) {
                            createReply(forumContents.subList(1, forumContents.size()));
                        }
                    }
                }
            });

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

    /**
     * 构建回帖弹窗
     */
    private void showContent() {

        View alertView = View.inflate(this, R.layout.forum_replay, null);
        editText = alertView.findViewById(R.id.post_content);
        //关闭回帖窗口按钮
        Button close = alertView.findViewById(R.id.close);
        reply = alertView.findViewById(R.id.reply);
        reply.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {
                viewModel.sendReply(forumId, editText.getText().toString());
            }
        });

        editText.addTextChangedListener(new MyTextChange() {
            @Override
            public void afterTextChanged(Editable s) {
                viewModel.replayFormChanged(editText.getText().toString());
            }
        });

        ShowWordCount showWordCount = new ShowWordCount(new int[]{R.id.show_count_top, R.id.show_count_bottom}, R.id.post_content, alertView);
        showWordCount.showCount();

        AlertDialog.Builder alert = new AlertDialog.Builder(this);
        final AlertDialog alertDialog = alert.setTitle(R.string.forum_reply).setView(alertView).create();

        handler = new Handler(Looper.getMainLooper()) {
            @Override
            public void handleMessage(@NonNull Message msg) {
                alertDialog.dismiss();
            }
        };

        close.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {
                handler.sendEmptyMessage(0);
            }
        });

        alertDialog.show();
    }

    /**
     * 初始化第一楼数据
     */
    private void initFirst(ForumContent forumContent) {
        setData(firstLayout, forumContent);
    }

    /**
     * 返回
     */
    @Event(value = R.id.back)
    private void back(View view) {
        setResult(Activity.RESULT_OK);
        finish();
    }

    /**
     * 创建楼层数据
     */
    private void createReply(List<ForumContent> forumContentList) {
        replyLayout.removeAllViews();
        for (ForumContent forumContent : forumContentList) {
            View view = View.inflate(this, R.layout.forum_data_content, null);
            ViewGroup.LayoutParams layoutParams = new ViewGroup.LayoutParams(ViewGroup.LayoutParams.MATCH_PARENT, ViewGroup.LayoutParams.WRAP_CONTENT);
            ViewGroup.MarginLayoutParams marginLayoutParams = new ViewGroup.MarginLayoutParams(layoutParams);
            marginLayoutParams.setMargins(0, 50, 0, 0);
            setData(view, forumContent);
            view.setLayoutParams(marginLayoutParams);
            replyLayout.addView(view);
        }
    }

    /**
     * 设置楼层布局
     */
    private void setData(View view, ForumContent forumContent) {
        TextView name = view.findViewById(R.id.name);
        name.setText(forumContent.getUsername());
        TextView score = view.findViewById(R.id.score);
        score.setText(String.valueOf(forumContent.getMyInfo().getCreditScore()));
        TextView time = view.findViewById(R.id.time);
        time.setText(DateFormat.format(getString(R.string.dateformat), forumContent.getTime()));
        TextView tower = view.findViewById(R.id.tower);
        tower.setText(getString(R.string.tower, forumContent.getTower()));
        TextView content = view.findViewById(R.id.content);
        content.setText(forumContent.getContent());
    }
}