feat(storage): improve `BatchBuilder` logging

internal/cli/refresh_feeds.go

@@ -33,15 +33,9 @@ func refreshFeeds(store *storage.Storage) {
 		return
 	}
 
-	nbJobs := len(jobs)
-
-	slog.Info("Created a batch of feeds",
-		slog.Int("nb_jobs", nbJobs),
-		slog.Int("batch_size", config.Opts.BatchSize()),
-	)
-
 	slog.Debug("Feed URLs in this batch", slog.Any("feed_urls", jobs.FeedURLs()))
 
+	nbJobs := len(jobs)
 	var jobQueue = make(chan model.Job, nbJobs)
 
 	slog.Info("Starting a pool of workers",

internal/cli/scheduler.go

@@ -43,9 +43,6 @@ func feedScheduler(store *storage.Storage, pool *worker.Pool, frequency, batchSi
 		if jobs, err := batchBuilder.FetchJobs(); err != nil {
 			slog.Error("Unable to fetch jobs from database", slog.Any("error", err))
 		} else if len(jobs) > 0 {
-			slog.Info("Created a batch of feeds",
-				slog.Int("nb_jobs", len(jobs)),
-			)
 			slog.Debug("Feed URLs in this batch", slog.Any("feed_urls", jobs.FeedURLs()))
 			pool.Push(jobs)
 		}

internal/storage/batch.go

@@ -17,7 +17,7 @@ type BatchBuilder struct {
 	db           *sql.DB
 	args         []any
 	conditions   []string
-	limit        int
+	batchSize    int
 	limitPerHost int
 }
 
@@ -28,7 +28,7 @@ func (s *Storage) NewBatchBuilder() *BatchBuilder {
 }
 
 func (b *BatchBuilder) WithBatchSize(batchSize int) *BatchBuilder {
-	b.limit = batchSize
+	b.batchSize = batchSize
 	return b
 }
 
@@ -81,8 +81,8 @@ func (b *BatchBuilder) FetchJobs() (model.JobList, error) {
 
 	query += " ORDER BY feed_url, next_check_at ASC"
 
-	if b.limit > 0 {
-		query += fmt.Sprintf(" LIMIT %d", b.limit)
+	if b.batchSize > 0 {
+		query += fmt.Sprintf(" LIMIT %d", b.batchSize)
 	}
 
 	rows, err := b.db.Query(query, b.args...)
@@ -91,8 +91,10 @@ func (b *BatchBuilder) FetchJobs() (model.JobList, error) {
 	}
 	defer rows.Close()
 
-	jobs := make(model.JobList, 0, b.limit)
+	jobs := make(model.JobList, 0, b.batchSize)
 	hosts := make(map[string]int)
+	nbRows := 0
+	nbSkippedFeeds := 0
 
 	for rows.Next() {
 		var job model.Job
@@ -100,6 +102,8 @@ func (b *BatchBuilder) FetchJobs() (model.JobList, error) {
 			return nil, fmt.Errorf(`store: unable to fetch job record: %v`, err)
 		}
 
+		nbRows++
+
 		if b.limitPerHost > 0 {
 			feedHostname := urllib.Domain(job.FeedURL)
 			if hosts[feedHostname] >= b.limitPerHost {
@@ -109,6 +113,7 @@ func (b *BatchBuilder) FetchJobs() (model.JobList, error) {
 					slog.Int("limit_per_host", b.limitPerHost),
 					slog.Int("current", hosts[feedHostname]),
 				)
+				nbSkippedFeeds++
 				continue
 			}
 			hosts[feedHostname]++
@@ -121,5 +126,12 @@ func (b *BatchBuilder) FetchJobs() (model.JobList, error) {
 		return nil, fmt.Errorf(`store: error iterating on job records: %v`, err)
 	}
 
+	slog.Info("Created a batch of feeds",
+		slog.Int("batch_size", b.batchSize),
+		slog.Int("rows_count", nbRows),
+		slog.Int("skipped_feeds_count", nbSkippedFeeds),
+		slog.Int("jobs_count", len(jobs)),
+	)
+
 	return jobs, nil
 }