package com.example.drink_order_system;

import android.annotation.SuppressLint;
import android.app.Fragment;
import android.app.FragmentManager;
import android.app.FragmentTransaction;
import android.os.Bundle;
import android.widget.RadioButton;
import android.widget.RadioGroup;

import androidx.appcompat.app.AppCompatActivity;

public class OrderActivity extends AppCompatActivity {

    private RadioGroup rg_tab_bar;
    private RadioButton rb_order;
    private Fragment fg_order; //点餐界面
    private Fragment fg_shop; //购物车界面
    private FragmentManager fManager;
    private String userName;
    private String restaurantName;
    Bundle bundle = new Bundle();
    @SuppressLint("MissingInflatedId")
    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_order);

        userName = getIntent().getStringExtra("userName");
        restaurantName = getIntent().getStringExtra("restaurantName");
        bundle.putString("userName", userName);
        bundle.putString("restaurantName", restaurantName);
        System.out.println("username in onCreate in OrderActivity: " + userName);
        fManager = getFragmentManager();
        rg_tab_bar = (RadioGroup) findViewById(R.id.rg_tab);
        rg_tab_bar.setOnCheckedChangeListener(this::onCheckedChanged); //对下方导航栏设置监听，实现界面切换
        defaultFragment(); // 将点单界面设为默认界面
    }
    public void onCheckedChanged(RadioGroup group, int checkedId) { //界面切换函数
        FragmentTransaction fTransaction = fManager.beginTransaction();
        hideAllFragment(fTransaction); //先隐藏所有界面
        switch (checkedId){
            case R.id.rb_order:
                if(fg_order==null)
                {
                    fg_order = OrderFragment.newInstance(restaurantName);
                    fTransaction.add(R.id.ly_content,fg_order);
                    fTransaction.show(fg_order);
                }
                else
                    fTransaction.show(fg_order);
                break;
            case R.id.rb_shop:
                if(fg_shop==null)
                {
                    fg_shop = ShopFragment.newInstance(userName,restaurantName);
                    fTransaction.add(R.id.ly_content,fg_shop);
                    fTransaction.show(fg_shop);
                }
                else
                    fTransaction.show(fg_shop);
                break;
        }
        fTransaction.commit();
    }
    public void defaultFragment() {
        FragmentTransaction fTransaction = fManager.beginTransaction();
        fg_order = OrderFragment.newInstance(restaurantName);
        fTransaction.add(R.id.ly_content, fg_order);
        fTransaction.show(fg_order);
        fTransaction.commit();
    }
    private void hideAllFragment(FragmentTransaction fragmentTransaction){
        if(fg_order!=null)fragmentTransaction.hide(fg_order);
        if(fg_shop!=null)fragmentTransaction.hide(fg_shop);
    }
}