package net.geedge.confagent.util;

import cn.hutool.core.util.StrUtil;
import org.springframework.beans.factory.config.YamlPropertiesFactoryBean;
import org.springframework.core.io.FileSystemResource;
import org.springframework.core.io.Resource;
import org.yaml.snakeyaml.Yaml;

import java.io.BufferedReader;
import java.io.File;
import java.util.HashMap;
import java.util.Map;
import java.util.Properties;

public class YamlUtil {

    public static void writeAsMap(Map map,String path){
        Map writeObj = map;
        if(writeObj == null)
            writeObj = new HashMap<>();
        Yaml yaml = new Yaml();
        Tool.FileUtil.writeUtf8String(yaml.dumpAsMap(writeObj), path);
    }

    /**
    * @Description 将yaml文件中的内容读取到map中
    * @Author  rui
    * @Date   2021/3/24
    */
    public static Map<String,Object> readAsMap(String path){
        File file = Tool.FileUtil.file(path);
        Yaml yaml = new Yaml();
        BufferedReader reader = Tool.FileUtil.getReader(file, Tool.CharsetUtil.UTF_8);
        Map<String,Object> map = yaml.loadAs(reader, Map.class);

        Tool.IoUtil.close(reader);
        return map;
    }

    /**
    * @Description 读取yaml文件中的属性，支持spring.profiles.active 连点形式
    * @Author  rui
    * @Date   2021/3/23
    */
    public String readProperty(String file,String key){
        Resource resource = getResource(file);
        Properties properties = yamlToProperties(resource);
        return properties.getProperty(key);
    }

    /**
     * @Description 读取yaml文件中的属性，可以指定默认值
     * @Author  rui
     * @Date   2021/3/23
     */
    public String readProperty(String file,String key,String defValue){
        Resource resource = getResource(file);
        Properties properties = yamlToProperties(resource);
        return properties.getProperty(key,defValue);
    }

    /**
    * @Description 获取application相关配置文件
    * @Author  rui
    * @Date   2021/3/23
    */
    public static Resource getApplication(String mode, String profile){
        return getResource("application"+ (StrUtil.isEmpty(profile)?"":"-"+profile )+".yml");
    }

    /**
     * @Description 获取配置文件
     * @Author  rui
     * @Date   2021/3/23
     */
    public static Resource getResource(String file){
        return new FileSystemResource(file);
    }

    /**
    * @Description 读取yaml文件并转为properties对象
    * @Author  rui
    * @Date   2021/3/23
    */
    public static Properties yamlToProperties(String file){
        Resource resource = getResource(file);
        return yamlToProperties(resource);
    }

    public static Properties yamlToProperties(String ... filepath){
        return yamlToProperties(getFileAbsolutePath(filepath));
    }

    /**
     * @Description 读取yaml文件并转为properties对象
     * @Author  rui
     * @Date   2021/3/23
     */
    public static Properties yamlToProperties(Resource resource){
        YamlPropertiesFactoryBean yamlPropertiesFactoryBean = new YamlPropertiesFactoryBean();
        // 2:将加载的配置文件交给 YamlPropertiesFactoryBean
        yamlPropertiesFactoryBean.setResources(resource);

        // 3：将yml转换成 key：val
        return yamlPropertiesFactoryBean.getObject();
    }

    public static String getFileAbsolutePath(String ... path){
        return Tool.FileUtil.file(path).getAbsolutePath();
    }

}