// Package task hosts the scheduled jobs ported from sdf-serve. The daily
// log auto-archive job moves oldest audit logs into MinIO when they exceed
// the archive_threshold configured in t_config.
package task

import (
	"context"

	"udeServer/internal/audit"
	"udeServer/internal/log"
	"udeServer/internal/svc"

	"github.com/robfig/cron/v3"
)

// StartScheduler registers and starts the cron scheduler.
func StartScheduler(ctx *svc.ServiceContext) {
	c := cron.New()

	// 每天 00:30 执行自动归档
	_, err := c.AddFunc("30 0 * * *", func() {
		log.RecordInfo(context.Background(), "[Ude-Task]开始自动归档日志!")
		LogAutoArchive(ctx)
	})
	if err != nil {
		log.RecordError(context.Background(), err)
	}

	log.RecordInfo(context.Background(), "定时任务启动中...")
	c.Start()
}

// LogAutoArchive archives oldest logs while they exceed the threshold.
func LogAutoArchive(svcCtx *svc.ServiceContext) {
	ctx := context.Background()
	threshold := svcCtx.LogConfigManager.ArchiveThreshold
	if threshold <= 0 {
		log.RecordInfo(ctx, "[Task-LogArchive]归档阈值未配置(t_config.archive_threshold),跳过自动归档!")
		return
	}
	if svcCtx.MinioClient == nil {
		log.RecordWarn(ctx, "[Task-LogArchive]MinIO客户端未加载(检查t_config的file_*配置),跳过自动归档!")
		return
	}
	archiveName := "system_auto_archive"

	for {
		list, err := svcCtx.SystemLogModel.FindAllWithLimit(ctx, int(threshold))
		if err != nil {
			log.RecordError(ctx, err)
			return
		}
		if int64(len(list)) < threshold {
			log.RecordInfo(ctx, "[Task-LogArchive]当前日志%d条,未到达归档阈值%d,跳过自动归档!", len(list), threshold)
			break
		}

		_, err = audit.ArchiveLogsToStorageAndRecord(ctx, list, archiveName, threshold, audit.AutoArchive, svcCtx.MinioClient, svcCtx.DB)
		if err != nil {
			log.RecordError(ctx, err)
			return
		}
		log.RecordInfo(ctx, "[Task-LogArchive]自动归档:%d条日志成功!", len(list))
	}
}