package com.zhangmeng.minio.controller;

import com.google.common.reflect.ClassPath;
import com.zhangmeng.minio.model.BucketFile;
import com.zhangmeng.minio.utils.AlertUtils;
import com.zhangmeng.minio.utils.EventBusUtils;
import com.zhangmeng.minio.utils.MinioUtils;
import io.minio.messages.Bucket;
import javafx.beans.value.ChangeListener;
import javafx.beans.value.ObservableValue;
import javafx.collections.FXCollections;
import javafx.collections.ObservableList;
import javafx.collections.ObservableMap;
import javafx.fxml.FXML;
import javafx.fxml.FXMLLoader;
import javafx.scene.control.*;
import javafx.scene.control.cell.PropertyValueFactory;
import javafx.scene.input.KeyCode;
import javafx.scene.input.KeyCodeCombination;
import javafx.scene.input.KeyCombination;
import javafx.scene.layout.AnchorPane;
import javafx.stage.FileChooser;
import javafx.stage.Stage;
import org.apache.commons.lang3.ClassPathUtils;

import java.io.*;
import java.net.URL;
import java.nio.charset.StandardCharsets;
import java.util.List;
import java.util.Properties;

/**
 * @author zhangmeng
 * @version 1.0
 * @date 2024-03-07 15:29
 */
public class MinioController {

    @FXML
    public AnchorPane center;

    private final ObservableList<BucketFile> list = FXCollections.observableArrayList();

    @FXML
    public MenuItem config_file;

    @FXML
    public MenuItem bucket_choose;

    @FXML
    public MenuItem reload_config;

    @FXML
    public Button upload;

    @FXML
    public Button choose_upload_file;

    @FXML
    public TextField upload_path;

    @FXML
    public TextField bucket_name;

    @FXML
    public Button bucket_btn;

    @FXML
    public TextField endpoint;

    @FXML
    public TextField accessKey;

    @FXML
    public TextField secretKey;

    @FXML
    public Button save_config;

    @FXML
    public ComboBox<String> backet_list;

    private final ObservableList<String> backet_item_list = FXCollections.observableArrayList();

    public TableView<BucketFile> tableview;

    @FXML
    public TableColumn<BucketFile,String> file_name;

    @FXML
    public TableColumn<BucketFile,Number> file_size;

    @FXML
    public TableColumn<BucketFile,String> file_url;

    @FXML
    public TableColumn<BucketFile,String> file_bucket;

    private File upload_file;

    public MinioController() {
        EventBusUtils.getDefault().register(this);
    }

    @FXML
    public void initialize() {
        tableview.setItems(list);
        file_name.setCellValueFactory(new PropertyValueFactory<BucketFile,String>("fileName"));
        file_size.setCellValueFactory(new PropertyValueFactory<BucketFile,Number>("size"));
        file_url.setCellValueFactory(new PropertyValueFactory<BucketFile,String>("url"));
        file_bucket.setCellValueFactory(new PropertyValueFactory<BucketFile,String>("bucketName"));

        file_name.prefWidthProperty().bind(tableview.widthProperty().divide(tableview.getColumns().size()));
        file_size.prefWidthProperty().bind(tableview.widthProperty().divide(tableview.getColumns().size()));
        file_url.prefWidthProperty().bind(tableview.widthProperty().divide(tableview.getColumns().size()));
        file_bucket.prefWidthProperty().bind(tableview.widthProperty().divide(tableview.getColumns().size()));

        // 创建上下文菜单
        final ContextMenu contextMenu = new ContextMenu();
        MenuItem menuItem = new MenuItem("删除");
        menuItem.setOnAction(event -> {
            list.remove(tableview.getSelectionModel().getSelectedItem());
        });
        contextMenu.getItems().add(menuItem);
        // 添加事件监听器来处理上下文菜单的显示
        tableview.setOnContextMenuRequested(event -> {
            // 只有当表格有选中项时才显示上下文菜单
            if (!tableview.getSelectionModel().isEmpty()) {
                contextMenu.show(tableview, event.getScreenX(), event.getScreenY());
            }
        });

        tableview.getSelectionModel().selectedItemProperty().addListener(new ChangeListener<BucketFile>() {
            @Override
            public void changed(ObservableValue<? extends BucketFile> observable, BucketFile oldValue, BucketFile newValue) {
                if (newValue != null) {
                    System.out.println(newValue.getFileName());
                }
            }
        });

        //绑定快捷键
        KeyCombination kc1 = KeyCombination.valueOf("ctrl+q");
        config_file.setAccelerator(kc1);
        config_file.setOnAction(event -> {
            FileInputStream fileInputStream = null;
            try {
                FXMLLoader fxmlLoader = new FXMLLoader(this.getClass().getResource("/fxml/config.fxml"));
                AnchorPane root = fxmlLoader.load();
                ObservableMap<String, Object> namespace = fxmlLoader.getNamespace();
                TextArea text_area = (TextArea) namespace.get("text_area");
                Button save_p = (Button) namespace.get("save_p");
                URL resource = this.getClass().getResource("/minio.properties");
                fileInputStream = new FileInputStream(new File(resource.getFile()));
                byte[] bytes = fileInputStream.readAllBytes();
                text_area.setText(new String(bytes, StandardCharsets.UTF_8));
                Stage stage = AlertUtils.alert("minio 配置文件",root,600,410,(Stage) MinioUtils.objectMap.get(MinioUtils.primaryStage));
                save_p.setOnAction(event1 -> {
                    stage.close();
                    try {
                        FileWriter fileWriter = new FileWriter(resource.getFile());
                        fileWriter.write(text_area.getText());
                        fileWriter.flush();
                        fileWriter.close();
                        load_property();
                    } catch (IOException e) {
                        e.printStackTrace();
                    }
                    AlertUtils.alert_msg("保存成功！");
                });

            } catch (IOException e) {
                e.printStackTrace();
            } finally {
                if (fileInputStream != null){
                    try {
                        fileInputStream.close();
                    } catch (IOException e) {
                        e.printStackTrace();
                    }
                }

            }
        });

        KeyCombination kc2 = KeyCombination.valueOf("ctrl+r");
        reload_config.setAccelerator(kc2);

        KeyCombination kc3 = KeyCombination.valueOf("ctrl+b");
        bucket_choose.setAccelerator(kc3);
        MinioUtils.objectMap.put(MinioUtils.minioController,this);

        choose_upload_file.setOnAction(event -> {
            //打开文件
            Stage stage = new Stage();
            FileChooser dc = new FileChooser();
            dc.setTitle("文件选择");
            dc.getExtensionFilters().addAll(new FileChooser.ExtensionFilter("文件类型", "*.*"));
            File file = dc.showOpenDialog(stage);
            if (file != null){
                //展示路径
                upload_file = file;
                upload_path.setText(file.getAbsolutePath());
            }
        });

        upload.setOnAction(event -> {

            if (upload_file == null){
                AlertUtils.alert_warning("请选择上传的文件后再试!");
                return;
            }

             MinioUtils.upload_file(upload_file);
        });

        bucket_btn.setOnAction(event -> {

            if (endpoint.getText().length() == 0 ){
                AlertUtils.alert_warning("endpoint 不能为空!");
                return;
            }

            if (accessKey.getText().length() == 0 ){
                AlertUtils.alert_warning("accessKey 不能为空!");
                return;
            }
            if (secretKey.getText().length() == 0 ){
                AlertUtils.alert_warning("secretKey 不能为空!");
                return;
            }

            if (bucket_name.getText().length() == 0 ){
                AlertUtils.alert_warning("bucket_name 不能为空!");
                return;
            }
            MinioUtils.createBucket(bucket_name.getText());
        });

        load_property();

        save_config.setOnAction(event -> save_properties());

        backet_list.getSelectionModel().selectedItemProperty().addListener(new ChangeListener<String>() {
            @Override
            public void changed(ObservableValue<? extends String> observable, String oldValue, String newValue) {
                if (newValue != null){
                    MinioUtils.objectMap.put(MinioUtils.current_bucket,newValue);
                    reload();
                }
            }
        });
    }

    public void save_properties(){

        if (endpoint.getText().length() == 0 ){
            AlertUtils.alert_warning("endpoint 不能为空!");
            return;
        }

        if (accessKey.getText().length() == 0 ){
            AlertUtils.alert_warning("accessKey 不能为空!");
            return;
        }
        if (secretKey.getText().length() == 0 ){
            AlertUtils.alert_warning("secretKey 不能为空!");
            return;
        }

        // 创建一个Properties对象
        Properties properties = new Properties();
        URL resource = this.getClass().getResource("/minio.properties");
        if (resource != null){
            InputStream input = null;
            OutputStream output = null;
            try {
                String file = resource.getFile();
                input = new FileInputStream(new File(file));
                output = new FileOutputStream(new File(file));
                // load a properties file
                properties.load(input);
                properties.put("endpoint",this.endpoint.getText());
                properties.put("accessKey",this.accessKey.getText());
                properties.put("secretKey",this.secretKey.getText());
                properties.store(output,"save");
            } catch (IOException e) {
                e.printStackTrace();
            } finally {
                if (input != null) {
                    try {
                        input.close();
                    } catch (IOException e) {
                        e.printStackTrace();
                    }
                }
                if (output != null){
                    try {
                        output.close();
                    }catch (IOException e){
                        e.printStackTrace();
                    }
                }
            }
            load_property();
            AlertUtils.alert_warning("配置文件保存成功!");
        }
    }

    public void load_property(){
        Properties prop = new Properties();
        URL resource = this.getClass().getResource("/minio.properties");
        if (resource != null){
            String file = resource.getFile();
            InputStream input = null;
            try {
                input = new FileInputStream(new File(file));
                // load a properties file
                prop.load(input);
                // get the property value and print it out
                String endpoint = prop.getProperty("endpoint");
                this.endpoint.setText(endpoint);
                String accessKey = prop.getProperty("accessKey");
                this.accessKey.setText(accessKey);
                String secretKey = prop.getProperty("secretKey");
                this.secretKey.setText(secretKey);

                MinioUtils.objectMap.put("endpoint",endpoint);
                MinioUtils.objectMap.put("accessKey",accessKey);
                MinioUtils.objectMap.put("secretKey",secretKey);
            } catch (IOException ex) {
                ex.printStackTrace();
            } finally {
                if (input != null) {
                    try {
                        input.close();
                    } catch (IOException e) {
                        e.printStackTrace();
                    }
                }
            }
        }

        //获取所有储存桶
        List<Bucket> buckets = MinioUtils.getAllBuckets();
        if (buckets.size()>0){
            for (Bucket bucket : buckets) {
                backet_item_list.add(bucket.name());
            }
        }
        this.backet_list.setItems(backet_item_list);
    }

    @FXML
    private void bucket_choose_action(){
        Stage primaryStage = (Stage) this.choose_upload_file.getScene().getWindow();
        FXMLLoader fxmlLoader =new  FXMLLoader( getClass().getResource("/fxml/bucket_choose.fxml"));
        AnchorPane bucket_choose = null;
        try {
            bucket_choose = fxmlLoader.load();
        } catch (IOException e) {
            e.printStackTrace();
        }
        Stage stage = AlertUtils.alert("设置", bucket_choose, primaryStage);
        MinioUtils.objectMap.put(MinioUtils.bucket_choose_action_stage,stage);
    }

    @FXML
    public void reload(){
        Object obj = MinioUtils.objectMap.get(MinioUtils.current_bucket);
        if (obj == null){
            AlertUtils.alert_warning("请选择bucket再试");
            return;
        }
        String bucketName = obj.toString();
        List<BucketFile> bucketFiles = MinioUtils.getFileList(bucketName);
        if (bucketFiles.size()>0){
            list.clear();
            list.addAll(bucketFiles);
        }
    }
}