package com.lsy.ui;

import com.lsy.dao.ProductDaolsy;
import com.lsy.dao.impl.ProductDaoImplsy;
import com.lsy.model.Productlsy;

import javax.swing.*;
import javax.swing.table.TableModel;
import java.awt.*;
import java.util.HashMap;
import java.util.List;
import java.util.Map;

public class ReserveTablemodel extends Myframelsy{
    private JTable table;
    private JLabel lblImage;
    private JLabel lblListprice;
    private JLabel lblDescn;
    private JLabel lblUnitcost;

    //商品列表集合
    private List<Productlsy> products;
    ///创建商品Dao对象
    private final ProductDaolsy dao =new ProductDaoImplsy();

    //购物车，键是选择商品的Id，值是商品的数量
    private Map<String,Integer> cart = new HashMap<String,Integer>();

    //选择的商品索引
    private int selectedRow = -1;

    public ReserveTablemodel(String title,int width,int height){
        super(title,width,height);

        //查询所有商品
        products = dao.findAll();


        //初始化界面
        //添加顶部搜索面板
        getContentPane().add(getSearchPanel(), BorderLayout.NORTH);
        //初始化分隔面板
        JSplitPane splitPane = new JSplitPane();
        //设置分隔线位置
        splitPane.setDividerLocation(600);
        //设置左侧面板
        splitPane.setLeftComponent(getLeftPanel());
        //设置右侧面板
        splitPane.setRightComponent(getRightPanel());
        //添加分隔面板
        getContentPane().add(splitPane,BorderLayout.CENTER);

    }

    //初始化搜索面板
    private JPanel getSearchPanel(){

        JPanel searchPanel = new JPanel();
        FlowLayout flowLayout = (FlowLayout) searchPanel.getLayout();
        flowLayout.setVgap(20);
        flowLayout.setHgap(40);

        JLabel lbl = new JLabel("选择商品类别：");
        lbl.setFont(new Font("微软雅黑", Font.PLAIN, 15));
        searchPanel.add(lbl);

        String[] categorys = {"鱼类","狗类","爬行类","猫类","鸟类"};
        JComboBox comboBox = new JComboBox(categorys);
        comboBox.setFont(new Font("微软雅黑",Font.PLAIN,15));
        searchPanel.add(comboBox);

        JButton btnGo = new JButton("查询");
        btnGo.setFont(new Font("微软雅黑",Font.PLAIN,15));
        searchPanel.add(btnGo);

        JButton btnReset = new JButton("重置");
        btnReset.setFont(new Font("微软雅黑",Font.PLAIN,15));
        searchPanel.add(btnReset);

        //注册查询按钮的ActionEvent事件监听器
        btnGo.addActionListener(e -> {
            //所选择的类别
            String category = (String) comboBox.getSelectedItem();
            //按照类别进行查询
            products =  dao.findByCategory(category);
            TableModel model = new ProductTablemodel(products);
            table.setModel(model);
        });
        //注册重置按钮的ActionEvent事件监听器
        btnReset.addActionListener(e -> {
            products = dao.findAll();
            TableModel model = new ProductTablemodel(products);
            table.setModel(model);

        });
        return searchPanel;
    }


    //右侧面板
    private JPanel getRightPanel() {

        JPanel rightPanel = new JPanel();
        rightPanel.setBackground(Color.WHITE);

        rightPanel.setLayout(new GridLayout(2, 1, 0, 0));

        lblImage = new JLabel();
        rightPanel.add(lblImage);
        lblImage.setHorizontalAlignment(SwingConstants.CENTER);

        JPanel detailPanel = new JPanel();
        detailPanel.setBackground(Color.WHITE);
        rightPanel.add(detailPanel);
        detailPanel.setLayout(new GridLayout(8, 1, 0, 5));

        JSeparator separator_1 = new JSeparator();
        detailPanel.add(separator_1);

        lblListprice = new JLabel();
        detailPanel.add(lblListprice);
        //设置字体
        lblListprice.setFont(new Font("微软雅黑", Font.PLAIN, 16));

        lblUnitcost = new JLabel();
        detailPanel.add(lblUnitcost);
        //设置字体
        lblUnitcost.setFont(new Font("微软雅黑", Font.PLAIN, 16));

        lblDescn = new JLabel();
        detailPanel.add(lblDescn);
        //设置字体
        lblDescn.setFont(new Font("微软雅黑", Font.PLAIN, 16));

        JSeparator separator_2 = new JSeparator();
        detailPanel.add(separator_2);

        JButton btnAdd = new JButton("添加购物车");
        btnAdd.setFont(new Font("微软雅黑", Font.PLAIN, 15));
        detailPanel.add(btnAdd);

        //布局占位使用
        JLabel lb1 = new JLabel("");
        detailPanel.add(lb1);

        JButton btnCheck = new JButton("查看购物车");
        btnCheck.setFont(new Font("微软雅黑", Font.PLAIN, 15));
        detailPanel.add(btnCheck);

        //注册【查看购物车】按钮的ActionEvent事件监听器
        btnAdd.addActionListener(e -> {

            if (selectedRow == -1) {
                return;
            }
            //添加商品到购物车处理
            Productlsy selectproduct = products.get(selectedRow);
            String productid = selectproduct.getProductidlsy();

            if (cart.containsKey(productid)) {
                //购物车中已有该商品
                //获得商品数量
                Integer quantity = cart.get(productid);
                cart.put(productid, ++quantity);

            } else {
                cart.put(productid, 1);
            }
            System.out.println(cart);
        });
        //注册【查看购物车】按钮的ActionEvent事件监听器
//        btnCheck.addActionListener(e -> {
//            CartFrame cartFrame = new CartFrame(cart, this);
//            cartFrame.setVisible(true);
//            setVisible(false);
//        }
//        );

        return rightPanel;
    }

    //初始化左侧面板
    private JScrollPane getLeftPanel(){

        JScrollPane leftScrollPane = new JScrollPane();

        leftScrollPane.setViewportView(getTable());
        return leftScrollPane;
    }
    //初始化左侧面板中的表格控件
    private JTable getTable() {
        TableModel model = new ProductTablemodel(this.products);

        if (table == null) {
            table = new JTable(model);
            //设置表中内容字体
            table.setFont(new Font("微软雅黑", Font.PLAIN, 16));
            //设置表列标题字体
            table.getTableHeader().setFont(new Font("微软雅黑", Font.PLAIN, 16));
            //设置表行高
            table.setRowHeight(51);
            table.setSelectionMode(ListSelectionModel.SINGLE_SELECTION);
            ListSelectionModel rowSelectionModel = table.getSelectionModel();

            rowSelectionModel.addListSelectionListener(e -> {
                //只处理鼠标释放
                if (e.getValueIsAdjusting()) {
                    return;
                }

                ListSelectionModel lsm = (ListSelectionModel) e.getSource();
                selectedRow = lsm.getMinSelectionIndex();
                if (selectedRow < 0) {
                    return;
                }
                //更新右侧面板内容
                Productlsy p = products.get(selectedRow);
                String petImage = String.format("/images/%s", p.getImagelsy());
                ImageIcon icon = new ImageIcon(ProductListFrame.class.getResource(petImage));
                lblImage.setIcon(icon);
                String descn = p.getDescnlsy();
                lblDescn.setText("商品描述：" + descn);

                double listprice = p.getListpricelsy();
                String slistprice = String.format("商品市场价%.2f", listprice);
                lblListprice.setText(slistprice);

                double unitcost = p.getUnitcostlsy();
                String slilUnitcost = String.format("商品单价%.2f", unitcost);
                lblUnitcost.setText(slilUnitcost);
            });
        } else {
            table.setModel(model);
        }
        return table;

    }

}