package flowershop.view;

import java.awt.BorderLayout;
import java.awt.Color;
import java.awt.FlowLayout;
import java.awt.Font;
import java.awt.GridLayout;
import java.util.HashMap;
import java.util.List;
import java.util.Map;

import javax.swing.ImageIcon;
import javax.swing.JButton;
import javax.swing.JComboBox;
import javax.swing.JFrame;
import javax.swing.JLabel;
import javax.swing.JPanel;
import javax.swing.JScrollPane;
import javax.swing.JSeparator;
import javax.swing.JSplitPane;
import javax.swing.JTable;
import javax.swing.ListSelectionModel;
import javax.swing.SwingConstants;
import javax.swing.table.TableColumnModel;
import javax.swing.table.TableModel;

import flowershop.model.Flower;
import flowershop.dao.FlowerDao;
import flowershop.daoimpl.FlowerDaoImpl;

//商品列表窗口
public class FlowerListFrame extends MyFrame{
    
	
    private JTable table;
    private JLabel lblImage;
    private JLabel lblPrice;
    private JLabel lblDescn;
    
    //商品列表集合
    private List<Flower> flowers =null;
    //创建商品Dao对象
    private  FlowerDao dao = new FlowerDaoImpl();
    
 // 购物车，键是选择的商品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 FlowerListFrame(String title, int width, int height) {
        super(title, width, height);
        // TODO 自动生成的构造函数存根
        flowers = dao.findAll();
        //添加顶部搜索面板
        getContentPane().add(getSearchPanel(),BorderLayout.NORTH);
        //创建分栏面板
        JSplitPane splitPane = new JSplitPane();
        //设置指定分割条位置，从窗格的左边到分割条的右边
        splitPane.setDividerLocation(600);
        //设置左侧面板
        splitPane.setLeftComponent(getLeftPanel());
        //设置右侧面板
        splitPane.setRightComponent(getRightPanel());
        //把分栏面板添加到内容面板
        getContentPane().add(splitPane,BorderLayout.CENTER);
    }
    //初始化右侧面板
    private JPanel getRightPanel() {
         JPanel rightPanel = new JPanel();
         rightPanel.setBackground(new Color(255, 220, 230));
         
         rightPanel.setLayout(new GridLayout(2,1,0,20));
         
         lblImage = new JLabel();
         rightPanel.add(lblImage);
         lblImage.setHorizontalAlignment(SwingConstants.CENTER);
         
         JPanel detailPanel = new JPanel();
         detailPanel.setBackground(new Color(255, 220, 230));
         rightPanel.add(detailPanel);
         detailPanel.setLayout(new GridLayout(8,1,0,5));
         
         JSeparator separator_1 = new JSeparator();
         detailPanel.add(separator_1);
         
         lblPrice = new JLabel();
         detailPanel.add(lblPrice);
         //设置字体
         lblPrice.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("添加到购物车");
         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【添加到购物车】按钮的ActionEvent事件监听器
         btnAdd.addActionListener(e ->{
        	 
        	 if(selectedRow <0) {
        		 return;
        	 }
        //添加商品到购物车处理
        	 Flower selectFlower = flowers.get(selectedRow);
        	 String productid = selectFlower.getProductid();
        	 
        	 if(cart.containsKey(productid)) {//购物车中已经有该商品
        		 //获得商品数量
        		 Integer quantity = cart.get(productid);
        		 cart.put(productid, ++quantity);
        		 }else {//购物车中还没有还商品
        			 cart.put(productid, 1); 
        		 }
        	 System.out.println(cart);
         });
         // //注册【查看到购物车】按钮的ActionEvent事件监听器
         btnCheck.addActionListener(e->{
       	  CartFrame cartFrame = new CartFrame(cart,this);
       	  cartFrame.setVisible(true);
       	  this.setVisible(false);
         });


         return rightPanel;
    }
    //初始化左侧面板
    private JScrollPane getLeftPanel() {
    	
    	JScrollPane leftScrollPane = new JScrollPane();
    	//将表格作为滚动面板的各个视口试图
    	leftScrollPane.setViewportView(getTable());
    	return leftScrollPane;
    }
    //初始化左侧面板中的表格控件
    private JTable getTable() {
    	FlowerTableModel model = new FlowerTableModel(this.flowers);
    	
    	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.setRowSelectionAllowed(true);
    		table.setBackground(new Color(250,220,230));
    		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
    			Flower f = flowers.get(selectedRow);
    			String petImage = String.format("/image/%s",f.getImage());
    			ImageIcon icon = new ImageIcon(FlowerListFrame.class.getResource(petImage));
    			lblImage.setIcon(icon);
    			
    			String descn = f.getDescn();
    			lblDescn.setText("花语:  "+ descn);
    			
    			double price = f.getPrice();
    			String sprice = String.format("单支价格：%.2f",price);
    			lblPrice.setText(sprice);
    		
    		});
    	}else {
    		table.setModel(model);
    	}
    	return table;
    }
  //初始化搜索面板
    private JPanel getSearchPanel() {
    	//TODO
    JPanel searchPanel = new JPanel();
    searchPanel.setBackground(new Color(255, 220, 230));
    FlowLayout flowLayout = (FlowLayout) searchPanel.getLayout();
    flowLayout.setVgap(20);
    flowLayout.setHgap(40);
    
    JLabel lbl = new JLabel("请选择花卉类别：");
    lbl.setFont(new Font("微软雅黑",Font.PLAIN,15));
    searchPanel.add(lbl);
    
    String[] categorys= {"春季花卉","夏季花卉","秋季花卉","冬季花卉"};
    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();
    	//按照类别查询
    	flowers = dao.findByCategory(category);
    	TableModel model = new FlowerTableModel(flowers);
    	table.setModel(model);
    });
 // 注册重置按钮的ActionEvent事件监听器
 		btnReset.addActionListener(e -> {
 			flowers = dao.findAll();
 			TableModel model = new FlowerTableModel(flowers);
 			table.setModel(model);
 		});
    return searchPanel;
    }

}