package service

import (
	"context"
	"encoding/json"
	"lone-services/pkg/logRedis"
	"lone-services/pkg/utils"
	"lone-services/services/lonelog/internal/dao"
	"lone-services/services/lonelog/internal/model"
	"sync"
	"time"

	"github.com/zeromicro/go-zero/core/logx"
)

// LogWatcher 队列监听器，内部直接使用 logredis.LogRedisClient 包全局变量，不再传入redis参数
type LogWatcher struct {
	ctx    context.Context
	cancel context.CancelFunc
	wg     sync.WaitGroup
}

// GlobalLogWatcher 全局单例，main初始化之后其它包直接 service.GlobalLogWatcher 访问
var GlobalLogWatcher *LogWatcher

// NewLogWatcher 无入参，直接使用包全局 logredis.LogRedisClient
func NewLogWatcher() *LogWatcher {
	ctx, cancel := context.WithCancel(context.Background())
	return &LogWatcher{
		ctx:    ctx,
		cancel: cancel,
	}
}

// StartWatch 启动两个消费协程
func (w *LogWatcher) StartWatch() {
	w.wg.Add(2)
	go w.loopActionLog()
	go w.loopLoginLog()
	logx.Infof("LogWatcher start, watch %s , %s", utils.LogActionQueueKey, utils.LogLoginQueueKey)
}

// loopActionLog 消费action日志队列，带recover自动重启
func (w *LogWatcher) loopActionLog() {
	defer func() {
		if r := recover(); r != nil {
			logx.Errorf("loopActionLog panic recovered, err=%v", r)
			time.Sleep(2 * time.Second)
			w.wg.Add(1)
			go w.loopActionLog()
		}
		w.wg.Done()
	}()

	for {
		select {
		case <-w.ctx.Done():
			logx.Info("loopActionLog received exit signal, quit")
			return
		default:
		}

		res, err := logRedis.LogRedisClient.BRPop(w.ctx, 5*time.Second, utils.LogActionQueueKey).Result()
		if err != nil {
			if err.Error() == "redis: nil" {
				continue
			}
			logx.Errorf("BRPop %s redis err: %v", utils.LogActionQueueKey, err)
			time.Sleep(1 * time.Second)
			continue
		}

		if len(res) < 2 {
			continue
		}
		payload := res[1]

		var action utils.ActionLog
		if err := json.Unmarshal([]byte(payload), &action); err != nil {
			logx.Errorf("unmarshal actionlog failed payload=%s err=%v", payload, err)
			continue
		}

		ctxBg := context.Background()
		logTime, _ := utils.ParseCustomTime(action.CreateTime)
		edit := dao.ActionLog{
			Content:        action.Content,
			AdminId:        action.AdminId,
			AdminName:      action.AdminName,
			Type:           uint8(action.Type),
			ModuleName:     action.ModuleName,
			Ip:             action.Ip,
			BrowserInfo:    action.BrowserInfo,
			BrowserName:    action.BrowserName,
			BrowserVersion: action.BrowserVersion,
			Reason:         action.Reason,
			CreateTime:     logTime,
		}

		err = model.ActionModel{}.Init().Create(&edit)
		if err != nil {
			logx.Errorf("insert actionlog mysql err=%v payload=%s", err, payload)
			_ = logRedis.LogRedisClient.LPush(ctxBg, utils.LogActionQueueKey, payload).Err()
			time.Sleep(500 * time.Millisecond)
		}
	}
}

// loopLoginLog 消费登录日志队列，带recover自动重启
func (w *LogWatcher) loopLoginLog() {
	defer func() {
		if r := recover(); r != nil {
			logx.Errorf("loopLoginLog panic recovered, err=%v", r)
			time.Sleep(2 * time.Second)
			w.wg.Add(1)
			go w.loopLoginLog()
		}
		w.wg.Done()
	}()

	for {
		select {
		case <-w.ctx.Done():
			logx.Info("loopLoginLog received exit signal, quit")
			return
		default:
		}

		res, err := logRedis.LogRedisClient.BRPop(w.ctx, 5*time.Second, utils.LogLoginQueueKey).Result()
		if err != nil {
			if err.Error() == "redis: nil" {
				continue
			}
			logx.Errorf("BRPop %s redis err: %v", utils.LogLoginQueueKey, err)
			time.Sleep(1 * time.Second)
			continue
		}

		if len(res) < 2 {
			continue
		}
		payload := res[1]

		var login utils.LoginLog
		if err := json.Unmarshal([]byte(payload), &login); err != nil {
			logx.Errorf("unmarshal loginlog failed payload=%s err=%v", payload, err)
			continue
		}

		ctxBg := context.Background()

		logTime, _ := utils.ParseCustomTime(login.CreateTime)
		edit := dao.LoginLog{
			AdminId:        login.AdminId,
			AdminName:      login.Name,
			Ip:             login.Ip,
			BrowserInfo:    login.BrowserInfo,
			BrowserName:    login.BrowserName,
			BrowserVersion: login.BrowserVersion,
			Reason:         login.Reason,
			CreateTime:     logTime,
			Status:         uint8(login.Status),
		}
		err = model.LoginModel{}.Init().Create(&edit)
		if err != nil {
			logx.Errorf("insert loginlog mysql err=%v payload=%s", err, payload)
			_ = logRedis.LogRedisClient.LPush(ctxBg, utils.LogLoginQueueKey, payload).Err()
			time.Sleep(500 * time.Millisecond)
		}
	}
}

// StopWatch 优雅停止消费协程
func (w *LogWatcher) StopWatch() {
	w.cancel()
	w.wg.Wait()
	logx.Info("LogWatcher stopped complete")
}