package com.svnmanager.service;

import com.svnmanager.model.SvnInfo;
import com.svnmanager.util.ProcessUtil;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;

import java.io.IOException;
import java.util.concurrent.TimeoutException;

/**
 * Info服务
 */
public class InfoService extends SvnService {
    private static final Logger logger = LoggerFactory.getLogger(InfoService.class);
    
    /**
     * 获取SVN信息
     * 
     * @param workingDirectory 工作目录
     * @return SVN信息
     * @throws IOException IO异常
     * @throws InterruptedException 中断异常
     * @throws TimeoutException 超时异常
     */
    public SvnInfo getInfo(String workingDirectory) 
            throws IOException, InterruptedException, TimeoutException {
        logger.debug("获取信息: {}", workingDirectory);
        
        if (!isValidWorkingCopy(workingDirectory)) {
            throw new IllegalArgumentException("无效的SVN工作副本: " + workingDirectory);
        }
        
        ProcessUtil.ProcessResult result = executeSvnCommand("info", workingDirectory);
        
        SvnInfo info = new SvnInfo();
        if (result.isSuccess()) {
            // 将输出行合并为一个字符串，便于解析
            String output = String.join("\n", result.getOutput());
            parseInfoOutput(output, info);
        } else {
            logger.warn("获取信息失败: {}", result.getErrorAsString());
        }
        
        return info;
    }
    
    /**
     * 解析svn info输出
     * 
     * @param output 命令输出
     * @param info 信息对象
     */
    private void parseInfoOutput(String output, SvnInfo info) {
        for (String line : output.split("\n")) {
            line = line.trim();
            if (line.isEmpty()) {
                continue;
            }
            
            if (line.startsWith("Path: ")) {
                info.setPath(line.substring(6).trim());
            } else if (line.startsWith("URL: ")) {
                info.setUrl(line.substring(5).trim());
            } else if (line.startsWith("Repository Root: ")) {
                info.setRepositoryRoot(line.substring(17).trim());
            } else if (line.startsWith("Repository UUID: ")) {
                info.setRepositoryUuid(line.substring(18).trim());
            } else if (line.startsWith("Revision: ")) {
                info.setRevision(line.substring(11).trim());
            } else if (line.startsWith("Node Kind: ")) {
                info.setNodeKind(line.substring(11).trim());
            } else if (line.startsWith("Schedule: ")) {
                info.setSchedule(line.substring(11).trim());
            } else if (line.startsWith("Last Changed Author: ")) {
                info.setLastChangedAuthor(line.substring(22).trim());
            } else if (line.startsWith("Last Changed Rev: ")) {
                info.setLastChangedRev(line.substring(19).trim());
            } else if (line.startsWith("Last Changed Date: ")) {
                info.setLastChangedDate(line.substring(20).trim());
            }
        }
    }
}