package gecaoji;

import javax.swing.*;
import java.awt.*;
import java.awt.event.WindowAdapter;
import java.awt.event.WindowEvent;
import java.text.SimpleDateFormat;
import java.util.Date;

// Manages the mower info dialog to keep MapRenderer focused on rendering.
public class GecaojiMeg {
    private static final SimpleDateFormat TIMESTAMP_FORMAT = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");

    private final JPanel anchorPanel;
    private final Gecaoji mower;

    private JDialog infoDialog;
    private Timer refreshTimer;

    private JLabel mowerNumberLabel;
    private JLabel realtimeXLabel;
    private JLabel realtimeYLabel;
    private JLabel positioningStatusLabel;
    private JLabel satelliteCountLabel;
    private JLabel realtimeSpeedLabel;
    private JLabel headingLabel;
    private JLabel updateTimeLabel;

    public GecaojiMeg(JPanel anchorPanel, Gecaoji mower) {
        this.anchorPanel = anchorPanel;
        this.mower = mower;
    }

    public void showMowerInfo() {
        Device device = Device.getGecaoji();
        if (device == null) {
            JOptionPane.showMessageDialog(
                anchorPanel,
                "无设备数据",
                "割草机信息",
                JOptionPane.INFORMATION_MESSAGE
            );
            return;
        }

        ensureDialog();
        updateLabels();
        positionDialog();
        if (!infoDialog.isVisible()) {
            infoDialog.setVisible(true);
        } else {
            infoDialog.toFront();
        }
        startTimer();
    }

    public void dispose() {
        stopTimer();
        if (infoDialog != null) {
            infoDialog.dispose();
            infoDialog = null;
        }
        resetLabels();
    }

    private void ensureDialog() {
        if (infoDialog != null) {
            return;
        }

        Window owner = anchorPanel == null ? null : SwingUtilities.getWindowAncestor(anchorPanel);
        JDialog dialog = new JDialog(owner, "割草机信息", Dialog.ModalityType.MODELESS);
        dialog.setDefaultCloseOperation(WindowConstants.DISPOSE_ON_CLOSE);

        // 设置对话框字体和颜色
        dialog.getContentPane().setBackground(new Color(245, 245, 245));
        
        JPanel content = new JPanel(new BorderLayout(0, 8)); // 减小垂直间距为8
        content.setBorder(BorderFactory.createEmptyBorder(10, 20, 10, 20)); // 减小内边距
        content.setBackground(new Color(245, 245, 245));

        // 创建信息面板 - 使用GridBagLayout以获得更精细的控制
        JPanel grid = new JPanel(new GridBagLayout());
        grid.setBackground(new Color(255, 255, 255));
        grid.setBorder(BorderFactory.createCompoundBorder(
            BorderFactory.createLineBorder(new Color(220, 220, 220), 1),
            BorderFactory.createEmptyBorder(10, 12, 10, 12) // 减小内边距
        ));
        
        GridBagConstraints gbc = new GridBagConstraints();
        gbc.insets = new Insets(5, 8, 5, 8); // 单元格间距缩小为原来的一半
        gbc.fill = GridBagConstraints.HORIZONTAL;
        gbc.anchor = GridBagConstraints.WEST;
        
        // 设置标题标签样式
        Font titleFont = new Font("Microsoft YaHei", Font.BOLD, 13);
        Font valueFont = new Font("Microsoft YaHei", Font.PLAIN, 13);
        
        // 第一行
        gbc.gridx = 0; gbc.gridy = 0;
        gbc.weightx = 0.3;
        JLabel label1 = new JLabel("设备编号：");
        label1.setFont(titleFont);
        label1.setForeground(new Color(102, 102, 102));
        grid.add(label1, gbc);
        
        gbc.gridx = 1; gbc.gridy = 0;
        gbc.weightx = 0.7;
        mowerNumberLabel = createValueLabel();
        mowerNumberLabel.setFont(valueFont);
        grid.add(mowerNumberLabel, gbc);
        
        // 第二行
        gbc.gridx = 0; gbc.gridy = 1;
        gbc.weightx = 0.3;
        JLabel label2 = new JLabel("实时X坐标：");
        label2.setFont(titleFont);
        label2.setForeground(new Color(102, 102, 102));
        grid.add(label2, gbc);
        
        gbc.gridx = 1; gbc.gridy = 1;
        gbc.weightx = 0.7;
        realtimeXLabel = createValueLabel();
        realtimeXLabel.setFont(valueFont);
        grid.add(realtimeXLabel, gbc);
        
        // 第三行
        gbc.gridx = 0; gbc.gridy = 2;
        gbc.weightx = 0.3;
        JLabel label3 = new JLabel("实时Y坐标：");
        label3.setFont(titleFont);
        label3.setForeground(new Color(102, 102, 102));
        grid.add(label3, gbc);
        
        gbc.gridx = 1; gbc.gridy = 2;
        gbc.weightx = 0.7;
        realtimeYLabel = createValueLabel();
        realtimeYLabel.setFont(valueFont);
        grid.add(realtimeYLabel, gbc);
        
        // 第四行
        gbc.gridx = 0; gbc.gridy = 3;
        gbc.weightx = 0.3;
        JLabel label4 = new JLabel("定位质量：");
        label4.setFont(titleFont);
        label4.setForeground(new Color(102, 102, 102));
        grid.add(label4, gbc);
        
        gbc.gridx = 1; gbc.gridy = 3;
        gbc.weightx = 0.7;
        positioningStatusLabel = createValueLabel();
        positioningStatusLabel.setFont(valueFont);
        grid.add(positioningStatusLabel, gbc);
        
        // 第五行
        gbc.gridx = 0; gbc.gridy = 4;
        gbc.weightx = 0.3;
        JLabel label5 = new JLabel("卫星颗数：");
        label5.setFont(titleFont);
        label5.setForeground(new Color(102, 102, 102));
        grid.add(label5, gbc);
        
        gbc.gridx = 1; gbc.gridy = 4;
        gbc.weightx = 0.7;
        satelliteCountLabel = createValueLabel();
        satelliteCountLabel.setFont(valueFont);
        grid.add(satelliteCountLabel, gbc);
        
        // 第六行
        gbc.gridx = 0; gbc.gridy = 5;
        gbc.weightx = 0.3;
        JLabel label6 = new JLabel("行驶速度：");
        label6.setFont(titleFont);
        label6.setForeground(new Color(102, 102, 102));
        grid.add(label6, gbc);
        
        gbc.gridx = 1; gbc.gridy = 5;
        gbc.weightx = 0.7;
        realtimeSpeedLabel = createValueLabel();
        realtimeSpeedLabel.setFont(valueFont);
        grid.add(realtimeSpeedLabel, gbc);
        
        // 第七行
        gbc.gridx = 0; gbc.gridy = 6;
        gbc.weightx = 0.3;
        JLabel label7 = new JLabel("运动航向：");
        label7.setFont(titleFont);
        label7.setForeground(new Color(102, 102, 102));
        grid.add(label7, gbc);
        
        gbc.gridx = 1; gbc.gridy = 6;
        gbc.weightx = 0.7;
        headingLabel = createValueLabel();
        headingLabel.setFont(valueFont);
        grid.add(headingLabel, gbc);
        
        // 第八行
        gbc.gridx = 0; gbc.gridy = 7;
        gbc.weightx = 0.3;
        JLabel label8 = new JLabel("更新时间：");
        label8.setFont(titleFont);
        label8.setForeground(new Color(102, 102, 102));
        grid.add(label8, gbc);
        
        gbc.gridx = 1; gbc.gridy = 7;
        gbc.weightx = 0.7;
        updateTimeLabel = createValueLabel();
        updateTimeLabel.setFont(valueFont);
        grid.add(updateTimeLabel, gbc);

        content.add(grid, BorderLayout.CENTER);

        // 按钮面板美化
        JButton closeButton = new JButton("关闭");
        closeButton.setFont(new Font("Microsoft YaHei", Font.BOLD, 13));
        closeButton.setBackground(new Color(0, 102, 204));
        closeButton.setForeground(Color.WHITE);
        closeButton.setFocusPainted(false);
        closeButton.setBorder(BorderFactory.createCompoundBorder(
            BorderFactory.createLineBorder(new Color(0, 80, 180), 1),
            BorderFactory.createEmptyBorder(5, 18, 5, 18) // 减小按钮内边距
        ));
        closeButton.setCursor(Cursor.getPredefinedCursor(Cursor.HAND_CURSOR));
        
        // 鼠标悬停效果
        closeButton.addMouseListener(new java.awt.event.MouseAdapter() {
            public void mouseEntered(java.awt.event.MouseEvent evt) {
                closeButton.setBackground(new Color(0, 122, 255));
            }
            public void mouseExited(java.awt.event.MouseEvent evt) {
                closeButton.setBackground(new Color(0, 102, 204));
            }
        });
        
        closeButton.addActionListener(e -> dialog.dispose());
        JPanel buttonPanel = new JPanel(new FlowLayout(FlowLayout.CENTER));
        buttonPanel.setBackground(new Color(245, 245, 245));
        buttonPanel.add(closeButton);
        content.add(buttonPanel, BorderLayout.SOUTH);

        dialog.setContentPane(content);
        dialog.pack();
        dialog.setResizable(false);
        dialog.addWindowListener(new WindowAdapter() {
            @Override
            public void windowClosed(WindowEvent e) {
                stopTimer();
                resetLabels();
                infoDialog = null;
            }
        });

        infoDialog = dialog;
    }

    private void positionDialog() {
        if (infoDialog == null || anchorPanel == null) {
            return;
        }
        int panelWidth = anchorPanel.getWidth();
        int panelHeight = anchorPanel.getHeight();
        int dialogHeight = infoDialog.getHeight();
        if (dialogHeight <= 0) {
            dialogHeight = infoDialog.getPreferredSize().height;
        }
        if (panelWidth > 0) {
            infoDialog.setSize(panelWidth, dialogHeight);
        }

        try {
            Point panelOnScreen = anchorPanel.getLocationOnScreen();
            int dialogWidth = infoDialog.getWidth();
            int targetX = panelOnScreen.x + (panelWidth - dialogWidth) / 2;
            int targetY = panelOnScreen.y + panelHeight / 3 - dialogHeight / 2;
            infoDialog.setLocation(targetX, targetY);
        } catch (IllegalComponentStateException ignored) {
            // panel not yet visible, skip positioning for now
        }
    }

    private JLabel createValueLabel() {
        JLabel label = new JLabel("--");
        label.setHorizontalAlignment(SwingConstants.LEFT);
        label.setForeground(new Color(51, 51, 51));
        return label;
    }

    private void startTimer() {
        if (refreshTimer == null) {
            refreshTimer = new Timer(1000, e -> updateLabels());
            refreshTimer.setRepeats(true);
        }
        if (!refreshTimer.isRunning()) {
            refreshTimer.start();
        }
    }

    private void stopTimer() {
        if (refreshTimer != null) {
            refreshTimer.stop();
            refreshTimer = null;
        }
    }

    private void resetLabels() {
        mowerNumberLabel = null;
        realtimeXLabel = null;
        realtimeYLabel = null;
        positioningStatusLabel = null;
        satelliteCountLabel = null;
        realtimeSpeedLabel = null;
        headingLabel = null;
        updateTimeLabel = null;
    }

    private void updateLabels() {
        if (mowerNumberLabel == null) {
            return;
        }

        Device device = Device.getGecaoji();
        if (device == null) {
            setLabels("--");
            return;
        }

        mower.refreshFromDevice();

        mowerNumberLabel.setText(formatDeviceValue(device.getMowerNumber()));
        realtimeXLabel.setText(formatDeviceValue(device.getRealtimeX()));
        realtimeYLabel.setText(formatDeviceValue(device.getRealtimeY()));
        positioningStatusLabel.setText(formatFixQualityValue(device.getPositioningStatus()));
        satelliteCountLabel.setText(formatDeviceValue(device.getSatelliteCount()));
        realtimeSpeedLabel.setText(formatDeviceValue(device.getRealtimeSpeed()));
        headingLabel.setText(formatDeviceValue(device.getHeading()));
        updateTimeLabel.setText(formatTimestamp(device.getGupdateTime()));
    }

    private void setLabels(String value) {
        if (mowerNumberLabel != null) mowerNumberLabel.setText(value);
        if (realtimeXLabel != null) realtimeXLabel.setText(value);
        if (realtimeYLabel != null) realtimeYLabel.setText(value);
        if (positioningStatusLabel != null) positioningStatusLabel.setText(value);
        if (satelliteCountLabel != null) satelliteCountLabel.setText(value);
        if (realtimeSpeedLabel != null) realtimeSpeedLabel.setText(value);
        if (headingLabel != null) headingLabel.setText(value);
        if (updateTimeLabel != null) updateTimeLabel.setText(value);
    }

    private String sanitizeDeviceValue(String value) {
        if (value == null) {
            return null;
        }
        String trimmed = value.trim();
        if (trimmed.isEmpty() || "-1".equals(trimmed)) {
            return null;
        }
        return trimmed;
    }

    private String formatDeviceValue(String value) {
        String sanitized = sanitizeDeviceValue(value);
        return sanitized == null ? "--" : sanitized;
    }

    private String formatFixQualityValue(String value) {
        String sanitized = sanitizeDeviceValue(value);
        if (sanitized == null) {
            return "--";
        }
        switch (sanitized) {
            case "0":
                return "未定位";
            case "1":
                return "单点定位";
            case "2":
                return "码差分";
            case "3":
                return "无效PPS";
            case "4":
                return "固定解";
            case "5":
                return "浮点解";
            case "6":
                return "正在估算";
            case "7":
                return "人工输入固定值";
            case "8":
                return "模拟模式";
            case "9":
                return "WAAS差分";
            default:
                return sanitized;
        }
    }

    private String formatTimestamp(String value) {
        String sanitized = sanitizeDeviceValue(value);
        if (sanitized == null) {
            return "--";
        }
        try {
            long millis = Long.parseLong(sanitized);
            return TIMESTAMP_FORMAT.format(new Date(millis));
        } catch (NumberFormatException ex) {
            return sanitized;
        }
    }
}