Initial commit

server/internal/service/banner.go

@@ -0,0 +1,49 @@
+package service
+
+import (
+	"context"
+
+	pb "lunar-tear/server/gen/proto"
+	"lunar-tear/server/internal/model"
+	"lunar-tear/server/internal/store"
+	"lunar-tear/server/internal/userdata"
+)
+
+type BannerServiceServer struct {
+	pb.UnimplementedBannerServiceServer
+	gacha store.GachaRepository
+}
+
+func NewBannerServiceServer(gacha store.GachaRepository) *BannerServiceServer {
+	return &BannerServiceServer{gacha: gacha}
+}
+
+func (s *BannerServiceServer) GetMamaBanner(ctx context.Context, req *pb.GetMamaBannerRequest) (*pb.GetMamaBannerResponse, error) {
+	catalog, _ := s.gacha.SnapshotCatalog()
+	var termLimited []*pb.GachaBanner
+	var latestChapter *pb.GachaBanner
+	for _, entry := range catalog {
+		if entry.GachaLabelType == model.GachaLabelPortalCage || entry.GachaLabelType == model.GachaLabelRecycle {
+			continue
+		}
+		b := &pb.GachaBanner{
+			GachaLabelType: entry.GachaLabelType,
+			GachaAssetName: entry.BannerAssetName,
+			GachaId:        entry.GachaId,
+		}
+		switch entry.GachaLabelType {
+		case model.GachaLabelEvent, model.GachaLabelPremium:
+			termLimited = append(termLimited, b)
+		case model.GachaLabelChapter:
+			if latestChapter == nil || entry.GachaId > latestChapter.GachaId {
+				latestChapter = b
+			}
+		}
+	}
+	return &pb.GetMamaBannerResponse{
+		TermLimitedGacha:   termLimited,
+		LatestChapterGacha: latestChapter,
+		IsExistUnreadPop:   false,
+		DiffUserData:       userdata.EmptyDiff(),
+	}, nil
+}