Self-host common third party logos via S3

Fetch favicons at import time instead of calling Google's favicon
service per page load. Logos are stored as public files in S3 and
served through the existing /api/files/v1/{id} endpoint.

Signed-off-by: Émile Ré <emile@getprobo.com>

pkg/thirdparty/service.go

@@ -17,17 +17,37 @@ package thirdparty
 import (
 	"context"
 	"fmt"
+	"time"
 
 	"go.gearno.de/kit/pg"
 	"go.probo.inc/probo/pkg/coredata"
+	"go.probo.inc/probo/pkg/file"
+	"go.probo.inc/probo/pkg/gid"
 )
 
 type Service struct {
-	pg *pg.Client
+	pg   *pg.Client
+	file *file.Service
 }
 
-func NewService(pgClient *pg.Client) *Service {
-	return &Service{pg: pgClient}
+func NewService(pgClient *pg.Client, fileSvc *file.Service) *Service {
+	return &Service{
+		pg:   pgClient,
+		file: fileSvc,
+	}
+}
+
+func (s *Service) GenerateLogoURL(
+	ctx context.Context,
+	logoFileID gid.GID,
+	expiresIn time.Duration,
+) (*string, error) {
+	url, err := s.file.GetPublicFileURL(ctx, logoFileID, expiresIn)
+	if err != nil {
+		return nil, fmt.Errorf("cannot generate logo URL: %w", err)
+	}
+
+	return &url, nil
 }
 
 func (s *Service) Search(ctx context.Context, name string) ([]*coredata.CommonThirdParty, error) {