package com.tiesheng.util.config;

import cn.hutool.core.collection.CollUtil;
import cn.hutool.core.comparator.VersionComparator;
import cn.hutool.core.io.FileUtil;
import cn.hutool.core.util.StrUtil;
import cn.hutool.core.util.URLUtil;
import cn.hutool.extra.spring.SpringUtil;
import cn.hutool.http.HttpGlobalConfig;
import cn.hutool.log.LogFactory;
import com.tiesheng.util.exception.ApiException;
import org.springframework.boot.context.properties.ConfigurationProperties;
import org.springframework.context.annotation.Configuration;
import org.springframework.core.io.Resource;
import org.springframework.core.io.support.PathMatchingResourcePatternResolver;

import javax.annotation.PostConstruct;
import javax.servlet.http.HttpServletResponse;
import java.io.File;
import java.io.IOException;
import java.util.ArrayList;
import java.util.HashMap;
import java.util.List;

/**
 * @author hao
 */
@Configuration
@ConfigurationProperties(prefix = "tiesheng.global")
public class GlobalConfig {

    private String host;
    private String service;
    private String version;
    private String uploadDir = System.getProperty("user.dir");

    /**
     * 其他属性
     */
    private HashMap<String, String> ext;


    @PostConstruct
    public void init() {
        // 默认10s的超时时间
        HttpGlobalConfig.setTimeout(10 * 1000);
        // 最多重定向3次
        HttpGlobalConfig.setMaxRedirectCount(3);
    }

    ///////////////////////////////////////////////////////////////////////////
    // 逻辑方法
    ///////////////////////////////////////////////////////////////////////////

    /**
     * 获取扩展属性内容
     *
     * @param extkey
     * @return
     */
    public String getExtValue(String extkey) {
        if (getExt() == null) {
            return "";
        }
        return getExt().get(extkey);
    }

    public String getContextPath() {
        String context = SpringUtil.getProperty("server.servlet.context-path");
        if (StrUtil.isEmpty(context)) {
            context = "";
        }
        return context;
    }


    /**
     * 构建完整的路径
     *
     * @param path
     * @return
     */
    public String buildPath(String path) {
        if (StrUtil.isEmpty(path)) {
            path = "";
        }
        if (!StrUtil.isEmpty(host) && !StrUtil.startWith(path, "http")) {
            path = host + getContextPath() + path;
        }
        return path;
    }


    /**
     * 重定向
     *
     * @param htmlDir 资源目录
     * @param route
     */
    public void redirect(String htmlDir, String route, HttpServletResponse response) {
        if (!StrUtil.endWith(htmlDir, "/")) {
            htmlDir = htmlDir + "/";
        }
        PathMatchingResourcePatternResolver patternResolver = new PathMatchingResourcePatternResolver();
        try {
            List<String> versions = new ArrayList<>();

            // jar包中的资源
            Resource[] resources = patternResolver.getResources(String.format("classpath*:static/%s*/index.html", htmlDir));
            for (Resource resource : resources) {
                String path = FileUtil.normalize(resource.getURL().getPath());
                versions.add(StrUtil.subBetween(path, htmlDir, "/index.html"));
            }

            // 目录中的资源
            String folder = String.format("%s/static/%s", System.getProperty("user.dir"), htmlDir);
            if (FileUtil.exist(folder)) {
                File[] files = FileUtil.ls(folder);
                for (File file : files) {
                    String normalize = FileUtil.normalize(file.getAbsolutePath());
                    versions.add(StrUtil.subAfter(normalize, htmlDir, true));
                }
            }

            if (CollUtil.isEmpty(versions)) {
                throw new ApiException("无法重定向，请检查资源");
            }
            CollUtil.sort(versions, (o1, o2) -> -VersionComparator.INSTANCE.compare(o1, o2));
            String path = buildPath(String.format("/%s%s/index.html#%s", htmlDir, versions.get(0), route));
            response.sendRedirect(path);
        } catch (IOException e) {
            LogFactory.get().info(e);
        }
    }

    ///////////////////////////////////////////////////////////////////////////
    // setter\getter
    ///////////////////////////////////////////////////////////////////////////


    public String getUploadDir() {
        return uploadDir;
    }

    public void setUploadDir(String uploadDir) {
        this.uploadDir = uploadDir;
    }

    public String getHost() {
        return host;
    }

    public void setHost(String host) {
        this.host = host;
    }

    public String getService() {
        return service;
    }

    public void setService(String service) {
        this.service = service;
    }

    public String getVersion() {
        return version;
    }

    public void setVersion(String version) {
        this.version = version;
    }

    public HashMap<String, String> getExt() {
        return ext;
    }

    public void setExt(HashMap<String, String> ext) {
        this.ext = ext;
    }
}