chore: initial public commit

internal/db/psql/top_artists.go

@@ -0,0 +1,67 @@
+package psql
+
+import (
+	"context"
+	"time"
+
+	"github.com/gabehf/koito/internal/db"
+	"github.com/gabehf/koito/internal/logger"
+	"github.com/gabehf/koito/internal/models"
+	"github.com/gabehf/koito/internal/repository"
+	"github.com/gabehf/koito/internal/utils"
+)
+
+func (d *Psql) GetTopArtistsPaginated(ctx context.Context, opts db.GetItemsOpts) (*db.PaginatedResponse[*models.Artist], error) {
+	l := logger.FromContext(ctx)
+	offset := (opts.Page - 1) * opts.Limit
+	t1, t2, err := utils.DateRange(opts.Week, opts.Month, opts.Year)
+	if err != nil {
+		return nil, err
+	}
+	if opts.Month == 0 && opts.Year == 0 {
+		// use period, not date range
+		t2 = time.Now()
+		t1 = db.StartTimeFromPeriod(opts.Period)
+	}
+	if opts.Limit == 0 {
+		opts.Limit = DefaultItemsPerPage
+	}
+	l.Debug().Msgf("Fetching top %d artists with period %s on page %d from range %v to %v",
+		opts.Limit, opts.Period, opts.Page, t1.Format("Jan 02, 2006"), t2.Format("Jan 02, 2006"))
+	rows, err := d.q.GetTopArtistsPaginated(ctx, repository.GetTopArtistsPaginatedParams{
+		ListenedAt:   t1,
+		ListenedAt_2: t2,
+		Limit:        int32(opts.Limit),
+		Offset:       int32(offset),
+	})
+	if err != nil {
+		return nil, err
+	}
+	rgs := make([]*models.Artist, len(rows))
+	for i, row := range rows {
+		t := &models.Artist{
+			Name:        row.Name,
+			MbzID:       row.MusicBrainzID,
+			ID:          row.ID,
+			Image:       row.Image,
+			ListenCount: row.ListenCount,
+		}
+		rgs[i] = t
+	}
+	count, err := d.q.CountTopArtists(ctx, repository.CountTopArtistsParams{
+		ListenedAt:   t1,
+		ListenedAt_2: t2,
+	})
+	if err != nil {
+		return nil, err
+	}
+	l.Debug().Msgf("Database responded with %d artists out of a total %d", len(rows), count)
+
+	return &db.PaginatedResponse[*models.Artist]{
+		Items:        rgs,
+		TotalCount:   count,
+		ItemsPerPage: int32(opts.Limit),
+		HasNextPage:  int64(offset+len(rgs)) < count,
+		CurrentPage:  int32(opts.Page),
+	}, nil
+}