add Upload and Download files

internal/app/server.go

@@ -2,12 +2,15 @@ package app
 
 import (
 	"context"
+	"evening_detective_server/internal/modules/file_storage"
 	"evening_detective_server/internal/modules/processor_jwt"
 	"evening_detective_server/internal/modules/roles"
+	"evening_detective_server/internal/services/file_service"
 	"evening_detective_server/internal/services/ui_service"
 	"evening_detective_server/internal/services/users_service"
 	proto "evening_detective_server/proto"
 
+	"google.golang.org/genproto/googleapis/api/httpbody"
 	"google.golang.org/grpc/codes"
 	"google.golang.org/grpc/status"
 )
@@ -17,15 +20,18 @@ type server struct {
 
 	usersService *users_service.UsersService
 	uiService    *ui_service.UiService
+	fileService  *file_service.FileService
 }
 
 func NewServer(
 	usersService *users_service.UsersService,
 	uiService *ui_service.UiService,
+	fileService *file_service.FileService,
 ) proto.EveningDetectiveServerServer {
 	return &server{
 		usersService: usersService,
 		uiService:    uiService,
+		fileService:  fileService,
 	}
 }
 
@@ -167,3 +173,32 @@ func (s *server) GetPermissions(
 		Permissions: permissions,
 	}, nil
 }
+
+func (s *server) UploadFile(ctx context.Context, req *proto.UploadFileReq) (*proto.UploadFileRsp, error) {
+	filename, err := s.fileService.UploadFile(
+		ctx,
+		&file_storage.File{
+			Name: req.Filename,
+			Data: req.Data,
+		},
+	)
+	if err != nil {
+		return &proto.UploadFileRsp{
+			Error: err.Error(),
+		}, nil
+	}
+	return &proto.UploadFileRsp{
+		Filename: filename,
+	}, nil
+}
+
+func (s *server) DownloadFile(ctx context.Context, req *proto.DownloadFileReq) (*httpbody.HttpBody, error) {
+	file, err := s.fileService.DownloadFile(ctx, req.Filename)
+	if err != nil {
+		return &httpbody.HttpBody{}, nil
+	}
+	return &httpbody.HttpBody{
+		Data:        file.Data,
+		ContentType: file.Mime,
+	}, nil
+}