package com.threecloud.dataserviceyy.service;

import com.alibaba.fastjson2.JSONArray;
import com.alibaba.fastjson2.JSONObject;
import com.threecloud.dataserviceyy.entity.MidVoiceCallRecord;
import com.threecloud.dataserviceyy.entity.MidVoiceDeviceLog;
import com.threecloud.dataserviceyy.mapper.MidVoiceCallRecordMapper;
import com.threecloud.dataserviceyy.mapper.MidVoiceDeviceLogMapper;
import com.threecloud.dataserviceyy.mapper.VoiceSyncMapper;
import com.threecloud.dataserviceyy.util.*;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.beans.factory.annotation.Value;
import org.springframework.scheduling.annotation.Scheduled;
import org.springframework.stereotype.Service;
import org.springframework.util.StringUtils;

import java.net.URLEncoder;
import java.nio.file.Files;
import java.nio.file.Path;
import java.nio.file.Paths;
import java.util.*;

/**
 * VAA录音盒定时同步服务
 *
 * 【功能】从EBOX录音盒拉取录音 → 下载文件 → 上传OSS → 保存通话记录
 * 【策略】增量同步、无重试、防重复、失败记录到日志表
 * 【账户】每个设备的账号密码从 mid_voice_device_config 表读取
 */
@Service
public class VaaSyncService {

    private static final Logger logger = LoggerFactory.getLogger(VaaSyncService.class);

    @Autowired
    private VoiceSyncMapper voiceSyncMapper;
    @Autowired
    private MidVoiceCallRecordMapper callRecordMapper;
    @Autowired
    private MidVoiceDeviceLogMapper deviceLogMapper;
    @Autowired
    private VaaHttpUtil vaaHttpUtil;
    @Autowired
    private FileUploadUtil fileUploadUtil;

    @Value("${vaa-sync.download-path:./vaa-recordings}")
    private String downloadPath;
    @Value("${vaa-sync.retain-days:10}")
    private int retainDays;

    /**
     * 定时同步任务
     */
    @Scheduled(cron = "${vaa-sync.sync-interval-cron:0 0 0/2 * * ?}")
    public void scheduledSync() {
        logger.info("【定时任务】========== VAA录音盒同步开始 ==========");
        long startTime = System.currentTimeMillis();
        executeSync();
        long costTime = System.currentTimeMillis() - startTime;
        logger.info("【定时任务】========== VAA录音盒同步结束，耗时 {} 秒 ==========", costTime / 1000);
    }

    /**
     * 执行同步任务（主入口）
     */
    public void executeSync() {
        try {
            // 清理过期本地文件
            FileCleaner.cleanOldFiles(downloadPath, retainDays);

            // 查询在线设备列表（含每个设备的账号密码）
            List<Map<String, Object>> deviceList = voiceSyncMapper.getAllYysb();
            logger.info("【主流程】查询到 {} 个在线语音设备", deviceList.size());

            int successCount = 0;
            int failCount = 0;
            for (int i = 0; i < deviceList.size(); i++) {
                Map<String, Object> device = deviceList.get(i);
                String deviceId = getStr(device, "ID");
                try {
                    syncSingleDevice(device);
                    successCount++;
                } catch (Exception e) {
                    failCount++;
                    logger.error("【异常】设备同步失败: ID={}, 原因={}", deviceId, e.getMessage());
                }
            }
            logger.info("【主流程】同步完成，成功 {} 个，失败 {} 个", successCount, failCount);
        } catch (Exception e) {
            logger.error("【异常】同步任务执行失败: {}", e.getMessage(), e);
        }
    }

    /**
     * 同步单个设备
     *
     * 流程：登录 → 获取分机号码 → 查录音列表 → 逐条下载上传保存
     * 任何步骤失败直接记录日志，跳过该设备
     */
    private void syncSingleDevice(Map<String, Object> device) throws Exception {
        String deviceId = getStr(device, "ID");
        String deviceNo = getStr(device, "UUID");
        String cityName = getStr(device, "ORGAN_NAME");
        String cityCode = getStr(device, "ORGAN_ID");
        String ip = getStr(device, "IP");
        Integer port = getInt(device, "PORT", 80);
        String orgCode = getStr(device, "ORG_CODE");
        // 每个设备有自己的账号密码，从配置表读取
        String username = getStr(device, "USERNAME");
        String password = getStr(device, "PASSWORD");

        logger.info("【设备】同步设备: ID={}, 编号={}, 机构={}, IP={}:{}", deviceId, deviceNo, cityName, ip, port);

        // 参数校验
        if (!StringUtils.hasText(ip)) {
            logger.warn("【设备】IP为空，跳过: ID={}", deviceId);
            saveDeviceLog(deviceId, deviceNo, cityCode, cityName, ip, port, "1", "0", "设备IP为空");
            return;
        }
        if (!StringUtils.hasText(username) || !StringUtils.hasText(password)) {
            logger.warn("【设备】账号密码为空，跳过: ID={}", deviceId);
            saveDeviceLog(deviceId, deviceNo, cityCode, cityName, ip, port, "1", "0", "设备账号密码未配置");
            return;
        }
        if (!StringUtils.hasText(cityName)) {
            cityName = "unknown_" + deviceId;
        }

        String deviceHost = buildHost(ip, port);

        // 步骤1：登录（无重试）
        String authToken;
        try {
            String loginUrl = String.format("http://%s/authorize?username=%s&password=%s",
                    deviceHost, urlEncode(username), urlEncode(password));
            authToken = vaaHttpUtil.httpLogin(loginUrl);
            saveDeviceLog(deviceId, deviceNo, cityCode, cityName, ip, port, "1", "1", null);
        } catch (Exception e) {
            saveDeviceLog(deviceId, deviceNo, cityCode, cityName, ip, port, "1", "0", "登录失败:" + e.getMessage());
            logger.error("【设备】登录失败，跳过: IP={}, 原因={}", ip, e.getMessage());
            return;
        }

        // 步骤2：获取分机号码（通道→电话号码映射），用于解析主叫/被叫
        Map<String, String> extNumbers = getExtensionNumbers(deviceHost, authToken);

        // 步骤3：计算同步时间范围（增量同步）
        Date lastSyncTime = SyncTimeUtil.readLastSyncTime(downloadPath, deviceId);
        Date now = new Date();
        if (lastSyncTime == null || DateUtil.getDateDoubleDiff(now, lastSyncTime) > 1.0) {
            lastSyncTime = DateUtil.addDayByDate(now, -1);
        }
        long startEpoch = lastSyncTime.getTime() / 1000;
        long endEpoch = now.getTime() / 1000;

        // 步骤4：获取录音列表（无重试）
        JSONArray records;
        try {
            String recordUrl = String.format("http://%s/service/record/~/time[%d,%d]",
                    deviceHost, startEpoch, endEpoch);
            String recordData = vaaHttpUtil.httpVisit(recordUrl, authToken);
            records = vaaHttpUtil.parseRecordData(recordData);
            saveDeviceLog(deviceId, deviceNo, cityCode, cityName, ip, port, "2", "1", null);
        } catch (Exception e) {
            saveDeviceLog(deviceId, deviceNo, cityCode, cityName, ip, port, "2", "0", "查询录音列表失败:" + e.getMessage());
            logger.error("【设备】获取录音列表失败: {}", e.getMessage());
            return;
        }

        if (records == null || records.isEmpty()) {
            logger.info("【设备】无新录音: ID={}", deviceId);
            return;
        }
        logger.info("【设备】获取到 {} 条录音记录", records.size());

        // 步骤5：逐条处理录音
        int successCount = 0;
        int failCount = 0;
        Date latestCallTime = null;

        for (int i = 0; i < records.size(); i++) {
            JSONObject rec = records.getJSONObject(i);
            try {
                Date callTime = processSingleRecord(rec, deviceNo, cityName, cityCode, orgCode,
                        deviceHost, authToken, extNumbers);
                if (callTime != null) {
                    successCount++;
                    if (latestCallTime == null || callTime.after(latestCallTime)) {
                        latestCallTime = callTime;
                    }
                }
            } catch (Exception e) {
                failCount++;
                logger.error("【录音】处理失败: {}, 原因={}", rec.getString("id"), e.getMessage());
            }
        }

        // 步骤6：保存同步时间
        if (latestCallTime != null) {
            SyncTimeUtil.writeLastSyncTime(downloadPath, deviceId, latestCallTime);
        }

        logger.info("【设备】同步完成: ID={}, 成功{}条, 失败{}条", deviceId, successCount, failCount);
    }

    /**
     * 处理单条录音记录
     *
     * @return 通话开始时间（成功时），null表示跳过
     */
    private Date processSingleRecord(JSONObject rec, String deviceNo, String cityName,
                                      String cityCode, String orgCode, String deviceHost,
                                      String authToken, Map<String, String> extNumbers) throws Exception {
        // 解析录音信息
        String recordId = RecordParser.parseRecordId(rec);
        String filePath = RecordParser.parseFilePath(rec);
        Integer channel = RecordParser.parseChannel(rec);
        String phone = RecordParser.parsePhone(rec);
        boolean isOutgoing = RecordParser.isOutgoing(rec);
        boolean isAnswered = RecordParser.isAnswered(rec);
        Long begTime = RecordParser.parseBegTime(rec);
        Long endTime = RecordParser.parseEndTime(rec);

        // 校验必要字段
        if (filePath == null || filePath.isEmpty()) {
            return null;
        }
        if (begTime == null || endTime == null) {
            return null;
        }

        // 防重复：根据 device_no + record_id 判断
        String callRecordId = deviceNo + "_" + recordId;
        if (callRecordMapper.selectByCallRecordId(callRecordId) != null) {
            logger.debug("【录音】已存在，跳过: {}", callRecordId);
            return null;
        }

        // 准备文件路径
        Date callStartTime = new Date(begTime * 1000);
        String fileName = FilePathUtil.extractFileName(filePath);
        String localPath = FilePathUtil.buildLocalPath(downloadPath, cityCode, callStartTime, deviceNo, fileName);
        Path localFile = Paths.get(localPath);
        String ossPath = FilePathUtil.buildOssPath(cityCode, callStartTime, fileName);

        // 获取通道绑定的电话号码（从EBOX分机号码配置）
        String channelPhone = "";
        if (channel != null && extNumbers != null) {
            channelPhone = extNumbers.getOrDefault(String.valueOf(channel), "");
        }

        // 构建通话记录
        MidVoiceCallRecord callRecord = buildCallRecord(
                callRecordId, deviceNo, cityCode, cityName, orgCode,
                fileName, callStartTime, new Date(endTime * 1000),
                (int) (endTime - begTime), channelPhone, phone, isOutgoing, isAnswered);

        // 下载录音文件（无重试）
        if (!Files.exists(localFile) || Files.size(localFile) == 0) {
            String fileUrl = "http://" + deviceHost + filePath;
            vaaHttpUtil.httpDown(fileUrl, localPath, authToken);
            logger.info("【录音】下载完成: {} ({} 字节)", fileName, Files.size(localFile));
        } else {
            logger.debug("【录音】文件已存在，跳过下载: {}", fileName);
        }
        callRecord.setRecordingFileSize((int) Files.size(localFile));

        // 上传到OSS
        byte[] wavData = Files.readAllBytes(localFile);
        String ossUrl = fileUploadUtil.uploadWav(cityName, ossPath, fileName, wavData);
        callRecord.setRecordingFilePath(ossUrl);
        logger.info("【录音】上传OSS成功: {}", ossUrl);

        // 保存到数据库
        callRecordMapper.insert(callRecord);
        logger.info("【录音】保存成功: callRecordId={}", callRecordId);

        return callStartTime;
    }

    /**
     * 构建通话记录实体
     *
     * 号码解析规则：
     * - 呼出（state=1）：主叫=本机号码（通道绑定号码），被叫=对方号码（phone字段）
     * - 呼入（state=2）：主叫=对方号码（phone字段），被叫=本机号码（通道绑定号码）
     */
    private MidVoiceCallRecord buildCallRecord(String callRecordId, String deviceNo, String cityCode,
                                                String cityName, String orgCode, String fileName,
                                                Date callStartTime, Date callEndTime,
                                                int duration, String channelPhone, String remotePhone,
                                                boolean isOutgoing, boolean isAnswered) {
        MidVoiceCallRecord record = new MidVoiceCallRecord();
        record.setCallRecordId(callRecordId);
        record.setDeviceNo(deviceNo);
        record.setCityCode(cityCode);
        record.setCityName(cityName);
        record.setOrgCode(orgCode);
        record.setRecordingFileName(fileName);
        record.setCallStartTime(callStartTime);
        record.setCallEndTime(callEndTime);
        record.setCallDuration(duration);
        record.setCallDirection(isOutgoing ? "2" : "1"); // 1呼入，2呼出

        String localNum = channelPhone != null ? channelPhone : "";
        String remoteNum = remotePhone != null ? remotePhone : "";

        if (isOutgoing) {
            record.setCallTel(localNum);     // 主叫：本机
            record.setCalledTel(remoteNum);  // 被叫：对方
        } else {
            record.setCallTel(remoteNum);    // 主叫：对方
            record.setCalledTel(localNum);   // 被叫：本机
        }

        record.setCallStatus(isAnswered ? "1" : "2"); // 1正常接通，2未接通
        return record;
    }

    /**
     * 获取分机号码配置
     * 调用 EBOX 接口 GET /service/ext/number
     * 返回 Map<通道号, 电话号码>，如 {"1":"8001","2":"8002"}
     */
    private Map<String, String> getExtensionNumbers(String deviceHost, String authToken) {
        try {
            String extUrl = "http://" + deviceHost + "/service/ext/number";
            return vaaHttpUtil.getExtensionNumbers(extUrl, authToken);
        } catch (Exception e) {
            logger.warn("【设备】获取分机号码失败，将无法解析本机号码: {}", e.getMessage());
            return Collections.emptyMap();
        }
    }

    /**
     * 保存设备连接日志到 mid_voice_device_log 表
     */
    private void saveDeviceLog(String deviceId, String deviceNo, String cityCode, String cityName,
                                String ipAddress, Integer devicePort, String connectType,
                                String connectStatus, String failReason) {
        try {
            MidVoiceDeviceLog log = new MidVoiceDeviceLog();
            log.setDeviceId(deviceId);
            log.setDeviceNo(deviceNo);
            log.setCityCode(cityCode);
            log.setCityName(cityName);
            log.setIpAddress(ipAddress);
            log.setDevicePort(devicePort);
            log.setConnectType(connectType);
            log.setConnectStatus(connectStatus);
            log.setFailReason(failReason);
            log.setCreateTime(new Date());
            deviceLogMapper.insert(log);
        } catch (Exception e) {
            logger.error("保存设备连接日志失败: {}", e.getMessage());
        }
    }

    // ==================== 工具方法 ====================

    private String buildHost(String ip, Integer port) {
        return ip + (port != null && port != 80 ? ":" + port : "");
    }

    private String getStr(Map<String, Object> map, String key) {
        Object v = map.get(key);
        return v != null ? v.toString() : null;
    }

    private Integer getInt(Map<String, Object> map, String key, Integer defaultVal) {
        Object v = map.get(key);
        if (v == null) return defaultVal;
        try { return Integer.parseInt(v.toString()); }
        catch (NumberFormatException e) { return defaultVal; }
    }

    private String urlEncode(String value) throws Exception {
        return URLEncoder.encode(value, "UTF-8");
    }
}