package services

import (
	"context"
	"time"

	"fwh-toolbox-server/cache"
	"fwh-toolbox-server/domain"
	minioRepo "fwh-toolbox-server/repositories/minio"
	mongoRepo "fwh-toolbox-server/repositories/mongo"

	"go.mongodb.org/mongo-driver/bson"
	"go.uber.org/zap"
)

func CleanupDataDownloadPackages(ctx context.Context) error {
	now := time.Now().UTC()
	jobs, err := mongoRepo.FindExpiredDataDownloadPackageJobs(ctx, now)
	if err != nil {
		return err
	}
	if len(jobs) > 0 {
		zap.L().Info("[DataDownload] 清理过期 Package", zap.Int("count", len(jobs)))
	}
	for i := range jobs {
		lock, ok, lockErr := cache.TryLock(ctx, "data-download:package:"+jobs[i].ID.Hex(), 5*time.Minute)
		if lockErr != nil || !ok {
			continue
		}
		if jobs[i].ObjectKey != "" {
			if err := minioRepo.Delete(ctx, jobs[i].ObjectKey); err != nil {
				lock.SafeRelease(context.Background())
				continue
			}
		}
		purge := jobs[i].ExpiresAt.Add(30 * 24 * time.Hour)
		_ = mongoRepo.UpdateDataDownloadPackageJob(ctx, jobs[i].ID, bson.M{"status": domain.DataDownloadExpired, "objectKey": "", "purgeAt": purge})
		lock.SafeRelease(context.Background())
	}
	return mongoRepo.PurgeExpiredDataDownloadPackageJobs(ctx, now)
}

func CleanupDataDownloadArtifacts(ctx context.Context) error {
	artifacts, err := mongoRepo.FindExpiredDataDownloadArtifacts(ctx, time.Now().UTC())
	if err != nil {
		return err
	}
	if len(artifacts) > 0 {
		zap.L().Info("[DataDownload] 清理过期渲染 Artifact", zap.Int("count", len(artifacts)))
	}
	for i := range artifacts {
		lock, lockErr := cache.Lock(ctx, "data-download:content:"+artifacts[i].DocumentID, 10*time.Minute, 100*time.Millisecond, 10*time.Second)
		if lockErr != nil {
			continue
		}
		if err := mongoRepo.DetachDataDownloadArtifact(ctx, artifacts[i]); err != nil {
			lock.SafeRelease(context.Background())
			continue
		}
		if err := minioRepo.Delete(ctx, artifacts[i].ObjectKey); err != nil {
			lock.SafeRelease(context.Background())
			continue
		}
		_ = mongoRepo.DeleteDataDownloadArtifact(ctx, artifacts[i])
		lock.SafeRelease(context.Background())
	}
	return nil
}