feat: add question 2, refactor api and db

api/api.go

@@ -17,12 +17,11 @@ var inProd bool
 
 type OAuthStore interface {
 	Create(callback string) (code string)
-	Validate(code string) (string, bool)
-	Exchange(ctx context.Context, code string) (*oauth2.Token, error)
+	Validate(ctx context.Context, state, code string) (*oauth2.Token, string, error)
 }
 
 type UserStore interface {
-	ConsumeToken(ctx context.Context, token *oauth2.Token) (*models.Token, bool, error)
+	ConsumeToken(ctx context.Context, token *oauth2.Token) (*models.Token, error)
 
 	CreateToken(ctx context.Context, user *models.User) (*models.Token, error)
 	RevokeToken(ctx context.Context, token string) error

api/auth.go

@@ -2,9 +2,11 @@ package api
 
 import (
 	"context"
+	"errors"
 	"log"
 
 	codequestpb "github.com/hhhapz/codequest/api/v1"
+	"github.com/hhhapz/codequest/models"
 	"google.golang.org/grpc/codes"
 	"google.golang.org/grpc/status"
 	"google.golang.org/protobuf/types/known/emptypb"
@@ -18,8 +20,8 @@ type AuthService struct {
 }
 
 const (
-	MDHost = "x-forwarded-host"
-	UIHost = "codequest.teamortix.com"
+	forwardedHostKey = "x-forwarded-host"
+	uiHost           = "codequest.teamortix.com"
 )
 
 func (as *AuthService) AuthFuncOverride(ctx context.Context, method string) (context.Context, error) {
@@ -32,9 +34,9 @@ func (as *AuthService) AuthFuncOverride(ctx context.Context, method string) (con
 
 func (as *AuthService) OAuthCode(ctx context.Context, req *codequestpb.OAuthCodeRequest) (*codequestpb.OAuthCodeResponse, error) {
 	md := RequestMetadata(ctx)
-	host := md.Get(MDHost)
+	host := md.Get(forwardedHostKey)
 
-	if host != UIHost && inProd {
+	if host != uiHost && inProd {
 		return nil, status.Errorf(codes.InvalidArgument, "invalid host: %v", host)
 	}
 
@@ -45,19 +47,18 @@ func (as *AuthService) OAuthCode(ctx context.Context, req *codequestpb.OAuthCode
 }
 
 func (as *AuthService) Token(ctx context.Context, req *codequestpb.TokenRequest) (*codequestpb.Token, error) {
-	_, ok := as.oauthStore.Validate(req.State)
-	if !ok {
-		return nil, status.Errorf(codes.InvalidArgument, "invalid state %q", req.State)
-	}
-	token, err := as.oauthStore.Exchange(ctx, req.Code)
+	token, _, err := as.oauthStore.Validate(ctx, req.State, req.Code)
 	if err != nil {
+		if errors.As(err, &models.UserError{}) {
+			return nil, status.Errorf(codes.InvalidArgument, err.Error())
+		}
 		log.Printf("could not perform token exchange: %v", err)
 		return nil, status.Errorf(codes.InvalidArgument, "invalid code %q: %v", req.Code, err)
 	}
 
-	tk, ok, err := as.userStore.ConsumeToken(ctx, token)
+	tk, err := as.userStore.ConsumeToken(ctx, token)
 	if err != nil {
-		if ok {
+		if errors.As(err, &models.UserError{}) {
 			return nil, status.Errorf(codes.InvalidArgument, "could not authorize: %v", err)
 		}
 		log.Printf("could not authorize request: %v", err)

api/interceptors.go

@@ -2,6 +2,7 @@ package api
 
 import (
 	"context"
+	"errors"
 	"strings"
 
 	grpc_auth "github.com/grpc-ecosystem/go-grpc-middleware/auth"
@@ -45,7 +46,10 @@ func BearerAuth(ctx context.Context, us UserStore) (context.Context, error) {
 
 	u, err := us.UserByToken(ctx, token)
 	if err != nil {
-		return nil, status.Errorf(codes.Unauthenticated, "invalid auth token: %v", token)
+		if errors.As(err, &models.UserError{}) {
+			return nil, status.Error(codes.Unauthenticated, err.Error())
+		}
+		return nil, status.Errorf(codes.Internal, "could not authenticate your request")
 	}
 
 	ctx = context.WithValue(ctx, UserKey, u)

api/v1/all.pb.gw.go

@@ -21,6 +21,7 @@ import (
 	"google.golang.org/grpc/metadata"
 	"google.golang.org/grpc/status"
 	"google.golang.org/protobuf/proto"
+	"google.golang.org/protobuf/types/known/emptypb"
 )
 
 // Suppress "imported and not used" errors
@@ -121,6 +122,198 @@ func local_request_AuthService_DeleteToken_0(ctx context.Context, marshaler runt
 
 }
 
+func request_QuestService_Questions_0(ctx context.Context, marshaler runtime.Marshaler, client QuestServiceClient, req *http.Request, pathParams map[string]string) (proto.Message, runtime.ServerMetadata, error) {
+	var protoReq emptypb.Empty
+	var metadata runtime.ServerMetadata
+
+	msg, err := client.Questions(ctx, &protoReq, grpc.Header(&metadata.HeaderMD), grpc.Trailer(&metadata.TrailerMD))
+	return msg, metadata, err
+
+}
+
+func local_request_QuestService_Questions_0(ctx context.Context, marshaler runtime.Marshaler, server QuestServiceServer, req *http.Request, pathParams map[string]string) (proto.Message, runtime.ServerMetadata, error) {
+	var protoReq emptypb.Empty
+	var metadata runtime.ServerMetadata
+
+	msg, err := server.Questions(ctx, &protoReq)
+	return msg, metadata, err
+
+}
+
+func request_QuestService_QuestionByID_0(ctx context.Context, marshaler runtime.Marshaler, client QuestServiceClient, req *http.Request, pathParams map[string]string) (proto.Message, runtime.ServerMetadata, error) {
+	var protoReq QuestionByIDRequest
+	var metadata runtime.ServerMetadata
+
+	var (
+		val string
+		ok  bool
+		err error
+		_   = err
+	)
+
+	val, ok = pathParams["ID"]
+	if !ok {
+		return nil, metadata, status.Errorf(codes.InvalidArgument, "missing parameter %s", "ID")
+	}
+
+	protoReq.ID, err = runtime.String(val)
+	if err != nil {
+		return nil, metadata, status.Errorf(codes.InvalidArgument, "type mismatch, parameter: %s, error: %v", "ID", err)
+	}
+
+	msg, err := client.QuestionByID(ctx, &protoReq, grpc.Header(&metadata.HeaderMD), grpc.Trailer(&metadata.TrailerMD))
+	return msg, metadata, err
+
+}
+
+func local_request_QuestService_QuestionByID_0(ctx context.Context, marshaler runtime.Marshaler, server QuestServiceServer, req *http.Request, pathParams map[string]string) (proto.Message, runtime.ServerMetadata, error) {
+	var protoReq QuestionByIDRequest
+	var metadata runtime.ServerMetadata
+
+	var (
+		val string
+		ok  bool
+		err error
+		_   = err
+	)
+
+	val, ok = pathParams["ID"]
+	if !ok {
+		return nil, metadata, status.Errorf(codes.InvalidArgument, "missing parameter %s", "ID")
+	}
+
+	protoReq.ID, err = runtime.String(val)
+	if err != nil {
+		return nil, metadata, status.Errorf(codes.InvalidArgument, "type mismatch, parameter: %s, error: %v", "ID", err)
+	}
+
+	msg, err := server.QuestionByID(ctx, &protoReq)
+	return msg, metadata, err
+
+}
+
+func request_QuestService_QuestionInput_0(ctx context.Context, marshaler runtime.Marshaler, client QuestServiceClient, req *http.Request, pathParams map[string]string) (proto.Message, runtime.ServerMetadata, error) {
+	var protoReq QuestionInputRequest
+	var metadata runtime.ServerMetadata
+
+	var (
+		val string
+		ok  bool
+		err error
+		_   = err
+	)
+
+	val, ok = pathParams["ID"]
+	if !ok {
+		return nil, metadata, status.Errorf(codes.InvalidArgument, "missing parameter %s", "ID")
+	}
+
+	protoReq.ID, err = runtime.String(val)
+	if err != nil {
+		return nil, metadata, status.Errorf(codes.InvalidArgument, "type mismatch, parameter: %s, error: %v", "ID", err)
+	}
+
+	msg, err := client.QuestionInput(ctx, &protoReq, grpc.Header(&metadata.HeaderMD), grpc.Trailer(&metadata.TrailerMD))
+	return msg, metadata, err
+
+}
+
+func local_request_QuestService_QuestionInput_0(ctx context.Context, marshaler runtime.Marshaler, server QuestServiceServer, req *http.Request, pathParams map[string]string) (proto.Message, runtime.ServerMetadata, error) {
+	var protoReq QuestionInputRequest
+	var metadata runtime.ServerMetadata
+
+	var (
+		val string
+		ok  bool
+		err error
+		_   = err
+	)
+
+	val, ok = pathParams["ID"]
+	if !ok {
+		return nil, metadata, status.Errorf(codes.InvalidArgument, "missing parameter %s", "ID")
+	}
+
+	protoReq.ID, err = runtime.String(val)
+	if err != nil {
+		return nil, metadata, status.Errorf(codes.InvalidArgument, "type mismatch, parameter: %s, error: %v", "ID", err)
+	}
+
+	msg, err := server.QuestionInput(ctx, &protoReq)
+	return msg, metadata, err
+
+}
+
+var (
+	filter_QuestService_Submit_0 = &utilities.DoubleArray{Encoding: map[string]int{"ID": 0}, Base: []int{1, 1, 0}, Check: []int{0, 1, 2}}
+)
+
+func request_QuestService_Submit_0(ctx context.Context, marshaler runtime.Marshaler, client QuestServiceClient, req *http.Request, pathParams map[string]string) (proto.Message, runtime.ServerMetadata, error) {
+	var protoReq SubmitRequest
+	var metadata runtime.ServerMetadata
+
+	var (
+		val string
+		ok  bool
+		err error
+		_   = err
+	)
+
+	val, ok = pathParams["ID"]
+	if !ok {
+		return nil, metadata, status.Errorf(codes.InvalidArgument, "missing parameter %s", "ID")
+	}
+
+	protoReq.ID, err = runtime.String(val)
+	if err != nil {
+		return nil, metadata, status.Errorf(codes.InvalidArgument, "type mismatch, parameter: %s, error: %v", "ID", err)
+	}
+
+	if err := req.ParseForm(); err != nil {
+		return nil, metadata, status.Errorf(codes.InvalidArgument, "%v", err)
+	}
+	if err := runtime.PopulateQueryParameters(&protoReq, req.Form, filter_QuestService_Submit_0); err != nil {
+		return nil, metadata, status.Errorf(codes.InvalidArgument, "%v", err)
+	}
+
+	msg, err := client.Submit(ctx, &protoReq, grpc.Header(&metadata.HeaderMD), grpc.Trailer(&metadata.TrailerMD))
+	return msg, metadata, err
+
+}
+
+func local_request_QuestService_Submit_0(ctx context.Context, marshaler runtime.Marshaler, server QuestServiceServer, req *http.Request, pathParams map[string]string) (proto.Message, runtime.ServerMetadata, error) {
+	var protoReq SubmitRequest
+	var metadata runtime.ServerMetadata
+
+	var (
+		val string
+		ok  bool
+		err error
+		_   = err
+	)
+
+	val, ok = pathParams["ID"]
+	if !ok {
+		return nil, metadata, status.Errorf(codes.InvalidArgument, "missing parameter %s", "ID")
+	}
+
+	protoReq.ID, err = runtime.String(val)
+	if err != nil {
+		return nil, metadata, status.Errorf(codes.InvalidArgument, "type mismatch, parameter: %s, error: %v", "ID", err)
+	}
+
+	if err := req.ParseForm(); err != nil {
+		return nil, metadata, status.Errorf(codes.InvalidArgument, "%v", err)
+	}
+	if err := runtime.PopulateQueryParameters(&protoReq, req.Form, filter_QuestService_Submit_0); err != nil {
+		return nil, metadata, status.Errorf(codes.InvalidArgument, "%v", err)
+	}
+
+	msg, err := server.Submit(ctx, &protoReq)
+	return msg, metadata, err
+
+}
+
 func request_UserService_User_0(ctx context.Context, marshaler runtime.Marshaler, client UserServiceClient, req *http.Request, pathParams map[string]string) (proto.Message, runtime.ServerMetadata, error) {
 	var protoReq UserRequest
 	var metadata runtime.ServerMetadata
@@ -459,6 +652,107 @@ func RegisterAuthServiceHandlerServer(ctx context.Context, mux *runtime.ServeMux
 	return nil
 }
 
+// RegisterQuestServiceHandlerServer registers the http handlers for service QuestService to "mux".
+// UnaryRPC     :call QuestServiceServer directly.
+// StreamingRPC :currently unsupported pending https://github.com/grpc/grpc-go/issues/906.
+// Note that using this registration option will cause many gRPC library features to stop working. Consider using RegisterQuestServiceHandlerFromEndpoint instead.
+func RegisterQuestServiceHandlerServer(ctx context.Context, mux *runtime.ServeMux, server QuestServiceServer) error {
+
+	mux.Handle("GET", pattern_QuestService_Questions_0, func(w http.ResponseWriter, req *http.Request, pathParams map[string]string) {
+		ctx, cancel := context.WithCancel(req.Context())
+		defer cancel()
+		var stream runtime.ServerTransportStream
+		ctx = grpc.NewContextWithServerTransportStream(ctx, &stream)
+		inboundMarshaler, outboundMarshaler := runtime.MarshalerForRequest(mux, req)
+		rctx, err := runtime.AnnotateIncomingContext(ctx, mux, req, "/hhhapz.codequest.v1.QuestService/Questions", runtime.WithHTTPPathPattern("/v1/questions"))
+		if err != nil {
+			runtime.HTTPError(ctx, mux, outboundMarshaler, w, req, err)
+			return
+		}
+		resp, md, err := local_request_QuestService_Questions_0(rctx, inboundMarshaler, server, req, pathParams)
+		md.HeaderMD, md.TrailerMD = metadata.Join(md.HeaderMD, stream.Header()), metadata.Join(md.TrailerMD, stream.Trailer())
+		ctx = runtime.NewServerMetadataContext(ctx, md)
+		if err != nil {
+			runtime.HTTPError(ctx, mux, outboundMarshaler, w, req, err)
+			return
+		}
+
+		forward_QuestService_Questions_0(ctx, mux, outboundMarshaler, w, req, resp, mux.GetForwardResponseOptions()...)
+
+	})
+
+	mux.Handle("GET", pattern_QuestService_QuestionByID_0, func(w http.ResponseWriter, req *http.Request, pathParams map[string]string) {
+		ctx, cancel := context.WithCancel(req.Context())
+		defer cancel()
+		var stream runtime.ServerTransportStream
+		ctx = grpc.NewContextWithServerTransportStream(ctx, &stream)
+		inboundMarshaler, outboundMarshaler := runtime.MarshalerForRequest(mux, req)
+		rctx, err := runtime.AnnotateIncomingContext(ctx, mux, req, "/hhhapz.codequest.v1.QuestService/QuestionByID", runtime.WithHTTPPathPattern("/v1/questions/{ID}"))
+		if err != nil {
+			runtime.HTTPError(ctx, mux, outboundMarshaler, w, req, err)
+			return
+		}
+		resp, md, err := local_request_QuestService_QuestionByID_0(rctx, inboundMarshaler, server, req, pathParams)
+		md.HeaderMD, md.TrailerMD = metadata.Join(md.HeaderMD, stream.Header()), metadata.Join(md.TrailerMD, stream.Trailer())
+		ctx = runtime.NewServerMetadataContext(ctx, md)
+		if err != nil {
+			runtime.HTTPError(ctx, mux, outboundMarshaler, w, req, err)
+			return
+		}
+
+		forward_QuestService_QuestionByID_0(ctx, mux, outboundMarshaler, w, req, resp, mux.GetForwardResponseOptions()...)
+
+	})
+
+	mux.Handle("GET", pattern_QuestService_QuestionInput_0, func(w http.ResponseWriter, req *http.Request, pathParams map[string]string) {
+		ctx, cancel := context.WithCancel(req.Context())
+		defer cancel()
+		var stream runtime.ServerTransportStream
+		ctx = grpc.NewContextWithServerTransportStream(ctx, &stream)
+		inboundMarshaler, outboundMarshaler := runtime.MarshalerForRequest(mux, req)
+		rctx, err := runtime.AnnotateIncomingContext(ctx, mux, req, "/hhhapz.codequest.v1.QuestService/QuestionInput", runtime.WithHTTPPathPattern("/v1/questions/{ID}/input"))
+		if err != nil {
+			runtime.HTTPError(ctx, mux, outboundMarshaler, w, req, err)
+			return
+		}
+		resp, md, err := local_request_QuestService_QuestionInput_0(rctx, inboundMarshaler, server, req, pathParams)
+		md.HeaderMD, md.TrailerMD = metadata.Join(md.HeaderMD, stream.Header()), metadata.Join(md.TrailerMD, stream.Trailer())
+		ctx = runtime.NewServerMetadataContext(ctx, md)
+		if err != nil {
+			runtime.HTTPError(ctx, mux, outboundMarshaler, w, req, err)
+			return
+		}
+
+		forward_QuestService_QuestionInput_0(ctx, mux, outboundMarshaler, w, req, resp, mux.GetForwardResponseOptions()...)
+
+	})
+
+	mux.Handle("POST", pattern_QuestService_Submit_0, func(w http.ResponseWriter, req *http.Request, pathParams map[string]string) {
+		ctx, cancel := context.WithCancel(req.Context())
+		defer cancel()
+		var stream runtime.ServerTransportStream
+		ctx = grpc.NewContextWithServerTransportStream(ctx, &stream)
+		inboundMarshaler, outboundMarshaler := runtime.MarshalerForRequest(mux, req)
+		rctx, err := runtime.AnnotateIncomingContext(ctx, mux, req, "/hhhapz.codequest.v1.QuestService/Submit", runtime.WithHTTPPathPattern("/v1/questions/{ID}"))
+		if err != nil {
+			runtime.HTTPError(ctx, mux, outboundMarshaler, w, req, err)
+			return
+		}
+		resp, md, err := local_request_QuestService_Submit_0(rctx, inboundMarshaler, server, req, pathParams)
+		md.HeaderMD, md.TrailerMD = metadata.Join(md.HeaderMD, stream.Header()), metadata.Join(md.TrailerMD, stream.Trailer())
+		ctx = runtime.NewServerMetadataContext(ctx, md)
+		if err != nil {
+			runtime.HTTPError(ctx, mux, outboundMarshaler, w, req, err)
+			return
+		}
+
+		forward_QuestService_Submit_0(ctx, mux, outboundMarshaler, w, req, resp, mux.GetForwardResponseOptions()...)
+
+	})
+
+	return nil
+}
+
 // RegisterUserServiceHandlerServer registers the http handlers for service UserService to "mux".
 // UnaryRPC     :call UserServiceServer directly.
 // StreamingRPC :currently unsupported pending https://github.com/grpc/grpc-go/issues/906.
@@ -723,6 +1017,147 @@ var (
 	forward_AuthService_DeleteToken_0 = runtime.ForwardResponseMessage
 )
 
+// RegisterQuestServiceHandlerFromEndpoint is same as RegisterQuestServiceHandler but
+// automatically dials to "endpoint" and closes the connection when "ctx" gets done.
+func RegisterQuestServiceHandlerFromEndpoint(ctx context.Context, mux *runtime.ServeMux, endpoint string, opts []grpc.DialOption) (err error) {
+	conn, err := grpc.Dial(endpoint, opts...)
+	if err != nil {
+		return err
+	}
+	defer func() {
+		if err != nil {
+			if cerr := conn.Close(); cerr != nil {
+				grpclog.Infof("Failed to close conn to %s: %v", endpoint, cerr)
+			}
+			return
+		}
+		go func() {
+			<-ctx.Done()
+			if cerr := conn.Close(); cerr != nil {
+				grpclog.Infof("Failed to close conn to %s: %v", endpoint, cerr)
+			}
+		}()
+	}()
+
+	return RegisterQuestServiceHandler(ctx, mux, conn)
+}
+
+// RegisterQuestServiceHandler registers the http handlers for service QuestService to "mux".
+// The handlers forward requests to the grpc endpoint over "conn".
+func RegisterQuestServiceHandler(ctx context.Context, mux *runtime.ServeMux, conn grpc.ClientConnInterface) error {
+	return RegisterQuestServiceHandlerClient(ctx, mux, NewQuestServiceClient(conn))
+}
+
+// RegisterQuestServiceHandlerClient registers the http handlers for service QuestService
+// to "mux". The handlers forward requests to the grpc endpoint over the given implementation of "QuestServiceClient".
+// Note: the gRPC framework executes interceptors within the gRPC handler. If the passed in "QuestServiceClient"
+// doesn't go through the normal gRPC flow (creating a gRPC client etc.) then it will be up to the passed in
+// "QuestServiceClient" to call the correct interceptors.
+func RegisterQuestServiceHandlerClient(ctx context.Context, mux *runtime.ServeMux, client QuestServiceClient) error {
+
+	mux.Handle("GET", pattern_QuestService_Questions_0, func(w http.ResponseWriter, req *http.Request, pathParams map[string]string) {
+		ctx, cancel := context.WithCancel(req.Context())
+		defer cancel()
+		inboundMarshaler, outboundMarshaler := runtime.MarshalerForRequest(mux, req)
+		rctx, err := runtime.AnnotateContext(ctx, mux, req, "/hhhapz.codequest.v1.QuestService/Questions", runtime.WithHTTPPathPattern("/v1/questions"))
+		if err != nil {
+			runtime.HTTPError(ctx, mux, outboundMarshaler, w, req, err)
+			return
+		}
+		resp, md, err := request_QuestService_Questions_0(rctx, inboundMarshaler, client, req, pathParams)
+		ctx = runtime.NewServerMetadataContext(ctx, md)
+		if err != nil {
+			runtime.HTTPError(ctx, mux, outboundMarshaler, w, req, err)
+			return
+		}
+
+		forward_QuestService_Questions_0(ctx, mux, outboundMarshaler, w, req, resp, mux.GetForwardResponseOptions()...)
+
+	})
+
+	mux.Handle("GET", pattern_QuestService_QuestionByID_0, func(w http.ResponseWriter, req *http.Request, pathParams map[string]string) {
+		ctx, cancel := context.WithCancel(req.Context())
+		defer cancel()
+		inboundMarshaler, outboundMarshaler := runtime.MarshalerForRequest(mux, req)
+		rctx, err := runtime.AnnotateContext(ctx, mux, req, "/hhhapz.codequest.v1.QuestService/QuestionByID", runtime.WithHTTPPathPattern("/v1/questions/{ID}"))
+		if err != nil {
+			runtime.HTTPError(ctx, mux, outboundMarshaler, w, req, err)
+			return
+		}
+		resp, md, err := request_QuestService_QuestionByID_0(rctx, inboundMarshaler, client, req, pathParams)
+		ctx = runtime.NewServerMetadataContext(ctx, md)
+		if err != nil {
+			runtime.HTTPError(ctx, mux, outboundMarshaler, w, req, err)
+			return
+		}
+
+		forward_QuestService_QuestionByID_0(ctx, mux, outboundMarshaler, w, req, resp, mux.GetForwardResponseOptions()...)
+
+	})
+
+	mux.Handle("GET", pattern_QuestService_QuestionInput_0, func(w http.ResponseWriter, req *http.Request, pathParams map[string]string) {
+		ctx, cancel := context.WithCancel(req.Context())
+		defer cancel()
+		inboundMarshaler, outboundMarshaler := runtime.MarshalerForRequest(mux, req)
+		rctx, err := runtime.AnnotateContext(ctx, mux, req, "/hhhapz.codequest.v1.QuestService/QuestionInput", runtime.WithHTTPPathPattern("/v1/questions/{ID}/input"))
+		if err != nil {
+			runtime.HTTPError(ctx, mux, outboundMarshaler, w, req, err)
+			return
+		}
+		resp, md, err := request_QuestService_QuestionInput_0(rctx, inboundMarshaler, client, req, pathParams)
+		ctx = runtime.NewServerMetadataContext(ctx, md)
+		if err != nil {
+			runtime.HTTPError(ctx, mux, outboundMarshaler, w, req, err)
+			return
+		}
+
+		forward_QuestService_QuestionInput_0(ctx, mux, outboundMarshaler, w, req, resp, mux.GetForwardResponseOptions()...)
+
+	})
+
+	mux.Handle("POST", pattern_QuestService_Submit_0, func(w http.ResponseWriter, req *http.Request, pathParams map[string]string) {
+		ctx, cancel := context.WithCancel(req.Context())
+		defer cancel()
+		inboundMarshaler, outboundMarshaler := runtime.MarshalerForRequest(mux, req)
+		rctx, err := runtime.AnnotateContext(ctx, mux, req, "/hhhapz.codequest.v1.QuestService/Submit", runtime.WithHTTPPathPattern("/v1/questions/{ID}"))
+		if err != nil {
+			runtime.HTTPError(ctx, mux, outboundMarshaler, w, req, err)
+			return
+		}
+		resp, md, err := request_QuestService_Submit_0(rctx, inboundMarshaler, client, req, pathParams)
+		ctx = runtime.NewServerMetadataContext(ctx, md)
+		if err != nil {
+			runtime.HTTPError(ctx, mux, outboundMarshaler, w, req, err)
+			return
+		}
+
+		forward_QuestService_Submit_0(ctx, mux, outboundMarshaler, w, req, resp, mux.GetForwardResponseOptions()...)
+
+	})
+
+	return nil
+}
+
+var (
+	pattern_QuestService_Questions_0 = runtime.MustPattern(runtime.NewPattern(1, []int{2, 0, 2, 1}, []string{"v1", "questions"}, ""))
+
+	pattern_QuestService_QuestionByID_0 = runtime.MustPattern(runtime.NewPattern(1, []int{2, 0, 2, 1, 1, 0, 4, 1, 5, 2}, []string{"v1", "questions", "ID"}, ""))
+
+	pattern_QuestService_QuestionInput_0 = runtime.MustPattern(runtime.NewPattern(1, []int{2, 0, 2, 1, 1, 0, 4, 1, 5, 2, 2, 3}, []string{"v1", "questions", "ID", "input"}, ""))
+
+	pattern_QuestService_Submit_0 = runtime.MustPattern(runtime.NewPattern(1, []int{2, 0, 2, 1, 1, 0, 4, 1, 5, 2}, []string{"v1", "questions", "ID"}, ""))
+)
+
+var (
+	forward_QuestService_Questions_0 = runtime.ForwardResponseMessage
+
+	forward_QuestService_QuestionByID_0 = runtime.ForwardResponseMessage
+
+	forward_QuestService_QuestionInput_0 = runtime.ForwardResponseMessage
+
+	forward_QuestService_Submit_0 = runtime.ForwardResponseMessage
+)
+
 // RegisterUserServiceHandlerFromEndpoint is same as RegisterUserServiceHandler but
 // automatically dials to "endpoint" and closes the connection when "ctx" gets done.
 func RegisterUserServiceHandlerFromEndpoint(ctx context.Context, mux *runtime.ServeMux, endpoint string, opts []grpc.DialOption) (err error) {

api/v1/all_grpc.pb.go

@@ -173,6 +173,200 @@ var AuthService_ServiceDesc = grpc.ServiceDesc{
 	Metadata: "github.com/hhhapz/codequest/api/v1/all.proto",
 }
 
+// QuestServiceClient is the client API for QuestService service.
+//
+// For semantics around ctx use and closing/ending streaming RPCs, please refer to https://pkg.go.dev/google.golang.org/grpc/?tab=doc#ClientConn.NewStream.
+type QuestServiceClient interface {
+	Questions(ctx context.Context, in *emptypb.Empty, opts ...grpc.CallOption) (*QuestionsResponse, error)
+	QuestionByID(ctx context.Context, in *QuestionByIDRequest, opts ...grpc.CallOption) (*Question, error)
+	QuestionInput(ctx context.Context, in *QuestionInputRequest, opts ...grpc.CallOption) (*QuestionInput, error)
+	Submit(ctx context.Context, in *SubmitRequest, opts ...grpc.CallOption) (*SubmitResponse, error)
+}
+
+type questServiceClient struct {
+	cc grpc.ClientConnInterface
+}
+
+func NewQuestServiceClient(cc grpc.ClientConnInterface) QuestServiceClient {
+	return &questServiceClient{cc}
+}
+
+func (c *questServiceClient) Questions(ctx context.Context, in *emptypb.Empty, opts ...grpc.CallOption) (*QuestionsResponse, error) {
+	out := new(QuestionsResponse)
+	err := c.cc.Invoke(ctx, "/hhhapz.codequest.v1.QuestService/Questions", in, out, opts...)
+	if err != nil {
+		return nil, err
+	}
+	return out, nil
+}
+
+func (c *questServiceClient) QuestionByID(ctx context.Context, in *QuestionByIDRequest, opts ...grpc.CallOption) (*Question, error) {
+	out := new(Question)
+	err := c.cc.Invoke(ctx, "/hhhapz.codequest.v1.QuestService/QuestionByID", in, out, opts...)
+	if err != nil {
+		return nil, err
+	}
+	return out, nil
+}
+
+func (c *questServiceClient) QuestionInput(ctx context.Context, in *QuestionInputRequest, opts ...grpc.CallOption) (*QuestionInput, error) {
+	out := new(QuestionInput)
+	err := c.cc.Invoke(ctx, "/hhhapz.codequest.v1.QuestService/QuestionInput", in, out, opts...)
+	if err != nil {
+		return nil, err
+	}
+	return out, nil
+}
+
+func (c *questServiceClient) Submit(ctx context.Context, in *SubmitRequest, opts ...grpc.CallOption) (*SubmitResponse, error) {
+	out := new(SubmitResponse)
+	err := c.cc.Invoke(ctx, "/hhhapz.codequest.v1.QuestService/Submit", in, out, opts...)
+	if err != nil {
+		return nil, err
+	}
+	return out, nil
+}
+
+// QuestServiceServer is the server API for QuestService service.
+// All implementations must embed UnimplementedQuestServiceServer
+// for forward compatibility
+type QuestServiceServer interface {
+	Questions(context.Context, *emptypb.Empty) (*QuestionsResponse, error)
+	QuestionByID(context.Context, *QuestionByIDRequest) (*Question, error)
+	QuestionInput(context.Context, *QuestionInputRequest) (*QuestionInput, error)
+	Submit(context.Context, *SubmitRequest) (*SubmitResponse, error)
+	mustEmbedUnimplementedQuestServiceServer()
+}
+
+// UnimplementedQuestServiceServer must be embedded to have forward compatible implementations.
+type UnimplementedQuestServiceServer struct {
+}
+
+func (UnimplementedQuestServiceServer) Questions(context.Context, *emptypb.Empty) (*QuestionsResponse, error) {
+	return nil, status.Errorf(codes.Unimplemented, "method Questions not implemented")
+}
+func (UnimplementedQuestServiceServer) QuestionByID(context.Context, *QuestionByIDRequest) (*Question, error) {
+	return nil, status.Errorf(codes.Unimplemented, "method QuestionByID not implemented")
+}
+func (UnimplementedQuestServiceServer) QuestionInput(context.Context, *QuestionInputRequest) (*QuestionInput, error) {
+	return nil, status.Errorf(codes.Unimplemented, "method QuestionInput not implemented")
+}
+func (UnimplementedQuestServiceServer) Submit(context.Context, *SubmitRequest) (*SubmitResponse, error) {
+	return nil, status.Errorf(codes.Unimplemented, "method Submit not implemented")
+}
+func (UnimplementedQuestServiceServer) mustEmbedUnimplementedQuestServiceServer() {}
+
+// UnsafeQuestServiceServer may be embedded to opt out of forward compatibility for this service.
+// Use of this interface is not recommended, as added methods to QuestServiceServer will
+// result in compilation errors.
+type UnsafeQuestServiceServer interface {
+	mustEmbedUnimplementedQuestServiceServer()
+}
+
+func RegisterQuestServiceServer(s grpc.ServiceRegistrar, srv QuestServiceServer) {
+	s.RegisterService(&QuestService_ServiceDesc, srv)
+}
+
+func _QuestService_Questions_Handler(srv interface{}, ctx context.Context, dec func(interface{}) error, interceptor grpc.UnaryServerInterceptor) (interface{}, error) {
+	in := new(emptypb.Empty)
+	if err := dec(in); err != nil {
+		return nil, err
+	}
+	if interceptor == nil {
+		return srv.(QuestServiceServer).Questions(ctx, in)
+	}
+	info := &grpc.UnaryServerInfo{
+		Server:     srv,
+		FullMethod: "/hhhapz.codequest.v1.QuestService/Questions",
+	}
+	handler := func(ctx context.Context, req interface{}) (interface{}, error) {
+		return srv.(QuestServiceServer).Questions(ctx, req.(*emptypb.Empty))
+	}
+	return interceptor(ctx, in, info, handler)
+}
+
+func _QuestService_QuestionByID_Handler(srv interface{}, ctx context.Context, dec func(interface{}) error, interceptor grpc.UnaryServerInterceptor) (interface{}, error) {
+	in := new(QuestionByIDRequest)
+	if err := dec(in); err != nil {
+		return nil, err
+	}
+	if interceptor == nil {
+		return srv.(QuestServiceServer).QuestionByID(ctx, in)
+	}
+	info := &grpc.UnaryServerInfo{
+		Server:     srv,
+		FullMethod: "/hhhapz.codequest.v1.QuestService/QuestionByID",
+	}
+	handler := func(ctx context.Context, req interface{}) (interface{}, error) {
+		return srv.(QuestServiceServer).QuestionByID(ctx, req.(*QuestionByIDRequest))
+	}
+	return interceptor(ctx, in, info, handler)
+}
+
+func _QuestService_QuestionInput_Handler(srv interface{}, ctx context.Context, dec func(interface{}) error, interceptor grpc.UnaryServerInterceptor) (interface{}, error) {
+	in := new(QuestionInputRequest)
+	if err := dec(in); err != nil {
+		return nil, err
+	}
+	if interceptor == nil {
+		return srv.(QuestServiceServer).QuestionInput(ctx, in)
+	}
+	info := &grpc.UnaryServerInfo{
+		Server:     srv,
+		FullMethod: "/hhhapz.codequest.v1.QuestService/QuestionInput",
+	}
+	handler := func(ctx context.Context, req interface{}) (interface{}, error) {
+		return srv.(QuestServiceServer).QuestionInput(ctx, req.(*QuestionInputRequest))
+	}
+	return interceptor(ctx, in, info, handler)
+}
+
+func _QuestService_Submit_Handler(srv interface{}, ctx context.Context, dec func(interface{}) error, interceptor grpc.UnaryServerInterceptor) (interface{}, error) {
+	in := new(SubmitRequest)
+	if err := dec(in); err != nil {
+		return nil, err
+	}
+	if interceptor == nil {
+		return srv.(QuestServiceServer).Submit(ctx, in)
+	}
+	info := &grpc.UnaryServerInfo{
+		Server:     srv,
+		FullMethod: "/hhhapz.codequest.v1.QuestService/Submit",
+	}
+	handler := func(ctx context.Context, req interface{}) (interface{}, error) {
+		return srv.(QuestServiceServer).Submit(ctx, req.(*SubmitRequest))
+	}
+	return interceptor(ctx, in, info, handler)
+}
+
+// QuestService_ServiceDesc is the grpc.ServiceDesc for QuestService service.
+// It's only intended for direct use with grpc.RegisterService,
+// and not to be introspected or modified (even as a copy)
+var QuestService_ServiceDesc = grpc.ServiceDesc{
+	ServiceName: "hhhapz.codequest.v1.QuestService",
+	HandlerType: (*QuestServiceServer)(nil),
+	Methods: []grpc.MethodDesc{
+		{
+			MethodName: "Questions",
+			Handler:    _QuestService_Questions_Handler,
+		},
+		{
+			MethodName: "QuestionByID",
+			Handler:    _QuestService_QuestionByID_Handler,
+		},
+		{
+			MethodName: "QuestionInput",
+			Handler:    _QuestService_QuestionInput_Handler,
+		},
+		{
+			MethodName: "Submit",
+			Handler:    _QuestService_Submit_Handler,
+		},
+	},
+	Streams:  []grpc.StreamDesc{},
+	Metadata: "github.com/hhhapz/codequest/api/v1/all.proto",
+}
+
 // UserServiceClient is the client API for UserService service.
 //
 // For semantics around ctx use and closing/ending streaming RPCs, please refer to https://pkg.go.dev/google.golang.org/grpc/?tab=doc#ClientConn.NewStream.

api/v1/auth.gunk

@@ -1,7 +1,6 @@
 package codequest
 
 import (
-	"github.com/gunk/opt/file/java"
 	"github.com/gunk/opt/http"
 	"github.com/gunk/opt/openapiv2"
 	"github.com/gunk/opt/proto"

api/v1/codequest.gunk

@@ -2,7 +2,6 @@
 package codequest
 
 import (
-	"github.com/gunk/opt/file/java"
 	"github.com/gunk/opt/http"
 	"github.com/gunk/opt/openapiv2"
 	"github.com/gunk/opt/proto"

api/v1/gen/json/codequest/all.swagger.json

@@ -8,6 +8,9 @@
     {
       "name": "AuthService"
     },
+    {
+      "name": "QuestService"
+    },
     {
       "name": "UserService"
     }
@@ -234,6 +237,134 @@
         ]
       }
     },
+    "/v1/questions": {
+      "get": {
+        "operationId": "QuestService_Questions",
+        "responses": {
+          "200": {
+            "description": "A successful response.",
+            "schema": {
+              "$ref": "#/definitions/v1QuestionsResponse"
+            }
+          },
+          "default": {
+            "description": "An unexpected error response.",
+            "schema": {
+              "$ref": "#/definitions/rpcStatus"
+            }
+          }
+        },
+        "tags": [
+          "QuestService"
+        ]
+      }
+    },
+    "/v1/questions/{id}": {
+      "get": {
+        "operationId": "QuestService_QuestionByID",
+        "responses": {
+          "200": {
+            "description": "A successful response.",
+            "schema": {
+              "$ref": "#/definitions/v1Question"
+            }
+          },
+          "default": {
+            "description": "An unexpected error response.",
+            "schema": {
+              "$ref": "#/definitions/rpcStatus"
+            }
+          }
+        },
+        "parameters": [
+          {
+            "name": "id",
+            "in": "path",
+            "required": true,
+            "type": "string"
+          }
+        ],
+        "tags": [
+          "QuestService"
+        ]
+      },
+      "post": {
+        "operationId": "QuestService_Submit",
+        "responses": {
+          "200": {
+            "description": "A successful response.",
+            "schema": {
+              "$ref": "#/definitions/v1SubmitResponse"
+            }
+          },
+          "default": {
+            "description": "An unexpected error response.",
+            "schema": {
+              "$ref": "#/definitions/rpcStatus"
+            }
+          }
+        },
+        "parameters": [
+          {
+            "name": "id",
+            "in": "path",
+            "required": true,
+            "type": "string"
+          },
+          {
+            "name": "content",
+            "in": "query",
+            "required": false,
+            "type": "string"
+          },
+          {
+            "name": "part",
+            "in": "query",
+            "required": false,
+            "type": "boolean"
+          },
+          {
+            "name": "code",
+            "in": "query",
+            "required": false,
+            "type": "string"
+          }
+        ],
+        "tags": [
+          "QuestService"
+        ]
+      }
+    },
+    "/v1/questions/{id}/input": {
+      "get": {
+        "operationId": "QuestService_QuestionInput",
+        "responses": {
+          "200": {
+            "description": "A successful response.",
+            "schema": {
+              "$ref": "#/definitions/v1QuestionInput"
+            }
+          },
+          "default": {
+            "description": "An unexpected error response.",
+            "schema": {
+              "$ref": "#/definitions/rpcStatus"
+            }
+          }
+        },
+        "parameters": [
+          {
+            "name": "id",
+            "in": "path",
+            "required": true,
+            "type": "string"
+          }
+        ],
+        "tags": [
+          "QuestService"
+        ]
+      }
+    },
     "/v1/users/me": {
       "get": {
         "operationId": "UserService_User",
@@ -340,6 +471,87 @@
         }
       }
     },
+    "v1PartData": {
+      "type": "object",
+      "properties": {
+        "part": {
+          "type": "integer",
+          "format": "int32"
+        },
+        "completed": {
+          "type": "boolean"
+        },
+        "points_worth": {
+          "type": "integer",
+          "format": "int32"
+        }
+      }
+    },
+    "v1Question": {
+      "type": "object",
+      "properties": {
+        "id": {
+          "type": "string"
+        },
+        "title": {
+          "type": "string"
+        },
+        "content": {
+          "type": "string"
+        },
+        "part1": {
+          "$ref": "#/definitions/v1PartData"
+        },
+        "part2": {
+          "$ref": "#/definitions/v1PartData"
+        }
+      }
+    },
+    "v1QuestionInput": {
+      "type": "object",
+      "properties": {
+        "id": {
+          "type": "string"
+        },
+        "input": {
+          "type": "string"
+        }
+      }
+    },
+    "v1QuestionsResponse": {
+      "type": "object",
+      "properties": {
+        "questions": {
+          "type": "array",
+          "items": {
+            "$ref": "#/definitions/v1Question"
+          }
+        }
+      }
+    },
+    "v1SubmitResponse": {
+      "type": "object",
+      "properties": {
+        "id": {
+          "type": "string"
+        },
+        "part": {
+          "type": "integer",
+          "format": "int32"
+        },
+        "correct": {
+          "type": "boolean"
+        },
+        "ranking": {
+          "type": "integer",
+          "format": "int32"
+        },
+        "points": {
+          "type": "integer",
+          "format": "int32"
+        }
+      }
+    },
     "v1Token": {
       "type": "object",
       "properties": {
@@ -358,9 +570,6 @@
         "name": {
           "type": "string"
         },
-        "email": {
-          "type": "string"
-        },
         "grade_level": {
           "type": "integer",
           "format": "int32"

api/v1/gen/ts-gateway/codequest/all.pb.ts

@@ -39,9 +39,54 @@ export type User = {
   createdAt?: GoogleProtobufTimestamp.Timestamp
 }
 
+export type PartData = {
+  part?: number
+  completed?: boolean
+  pointsWorth?: number
+}
+
+export type Question = {
+  id?: string
+  title?: string
+  content?: string
+  part1?: PartData
+  part2?: PartData
+}
+
+export type QuestionsResponse = {
+  questions?: Question[]
+}
+
+export type QuestionByIDRequest = {
+  id?: string
+}
+
+export type QuestionInputRequest = {
+  id?: string
+}
+
+export type QuestionInput = {
+  id?: string
+  input?: string
+}
+
+export type SubmitRequest = {
+  id?: string
+  answer?: string
+  part?: boolean
+  code?: string
+}
+
+export type SubmitResponse = {
+  id?: string
+  part?: number
+  correct?: boolean
+  ranking?: number
+  points?: number
+}
+
 export type UpdateFields = {
   name?: string
-  email?: string
   gradeLevel?: number
   admin?: boolean
 }
@@ -80,6 +125,20 @@ export class AuthService {
     return fm.fetchReq<DeleteTokenRequest, GoogleProtobufEmpty.Empty>(`/v1/auth/token`, {...initReq, method: "DELETE"})
   }
 }
+export class QuestService {
+  static Questions(req: GoogleProtobufEmpty.Empty, initReq?: fm.InitReq): Promise<QuestionsResponse> {
+    return fm.fetchReq<GoogleProtobufEmpty.Empty, QuestionsResponse>(`/v1/questions?${fm.renderURLSearchParams(req, [])}`, {...initReq, method: "GET"})
+  }
+  static QuestionByID(req: QuestionByIDRequest, initReq?: fm.InitReq): Promise<Question> {
+    return fm.fetchReq<QuestionByIDRequest, Question>(`/v1/questions/${req["id"]}?${fm.renderURLSearchParams(req, ["id"])}`, {...initReq, method: "GET"})
+  }
+  static QuestionInput(req: QuestionInputRequest, initReq?: fm.InitReq): Promise<QuestionInput> {
+    return fm.fetchReq<QuestionInputRequest, QuestionInput>(`/v1/questions/${req["id"]}/input?${fm.renderURLSearchParams(req, ["id"])}`, {...initReq, method: "GET"})
+  }
+  static Submit(req: SubmitRequest, initReq?: fm.InitReq): Promise<SubmitResponse> {
+    return fm.fetchReq<SubmitRequest, SubmitResponse>(`/v1/questions/${req["id"]}`, {...initReq, method: "POST"})
+  }
+}
 export class UserService {
   static User(req: UserRequest, initReq?: fm.InitReq): Promise<User> {
     return fm.fetchReq<UserRequest, User>(`/v1/users/me?${fm.renderURLSearchParams(req, [])}`, {...initReq, method: "GET"})

api/v1/gen/ts/codequest/all_pb.d.ts

@@ -164,13 +164,232 @@ export namespace User {
   }
 }
 
+export class PartData extends jspb.Message {
+  getPart(): number;
+  setPart(value: number): void;
+
+  getCompleted(): boolean;
+  setCompleted(value: boolean): void;
+
+  getPointsworth(): number;
+  setPointsworth(value: number): void;
+
+  serializeBinary(): Uint8Array;
+  toObject(includeInstance?: boolean): PartData.AsObject;
+  static toObject(includeInstance: boolean, msg: PartData): PartData.AsObject;
+  static extensions: {[key: number]: jspb.ExtensionFieldInfo<jspb.Message>};
+  static extensionsBinary: {[key: number]: jspb.ExtensionFieldBinaryInfo<jspb.Message>};
+  static serializeBinaryToWriter(message: PartData, writer: jspb.BinaryWriter): void;
+  static deserializeBinary(bytes: Uint8Array): PartData;
+  static deserializeBinaryFromReader(message: PartData, reader: jspb.BinaryReader): PartData;
+}
+
+export namespace PartData {
+  export type AsObject = {
+    part: number,
+    completed: boolean,
+    pointsworth: number,
+  }
+}
+
+export class Question extends jspb.Message {
+  getId(): string;
+  setId(value: string): void;
+
+  getTitle(): string;
+  setTitle(value: string): void;
+
+  getContent(): string;
+  setContent(value: string): void;
+
+  hasPart1(): boolean;
+  clearPart1(): void;
+  getPart1(): PartData | undefined;
+  setPart1(value?: PartData): void;
+
+  hasPart2(): boolean;
+  clearPart2(): void;
+  getPart2(): PartData | undefined;
+  setPart2(value?: PartData): void;
+
+  serializeBinary(): Uint8Array;
+  toObject(includeInstance?: boolean): Question.AsObject;
+  static toObject(includeInstance: boolean, msg: Question): Question.AsObject;
+  static extensions: {[key: number]: jspb.ExtensionFieldInfo<jspb.Message>};
+  static extensionsBinary: {[key: number]: jspb.ExtensionFieldBinaryInfo<jspb.Message>};
+  static serializeBinaryToWriter(message: Question, writer: jspb.BinaryWriter): void;
+  static deserializeBinary(bytes: Uint8Array): Question;
+  static deserializeBinaryFromReader(message: Question, reader: jspb.BinaryReader): Question;
+}
+
+export namespace Question {
+  export type AsObject = {
+    id: string,
+    title: string,
+    content: string,
+    part1?: PartData.AsObject,
+    part2?: PartData.AsObject,
+  }
+}
+
+export class QuestionsResponse extends jspb.Message {
+  clearQuestionsList(): void;
+  getQuestionsList(): Array<Question>;
+  setQuestionsList(value: Array<Question>): void;
+  addQuestions(value?: Question, index?: number): Question;
+
+  serializeBinary(): Uint8Array;
+  toObject(includeInstance?: boolean): QuestionsResponse.AsObject;
+  static toObject(includeInstance: boolean, msg: QuestionsResponse): QuestionsResponse.AsObject;
+  static extensions: {[key: number]: jspb.ExtensionFieldInfo<jspb.Message>};
+  static extensionsBinary: {[key: number]: jspb.ExtensionFieldBinaryInfo<jspb.Message>};
+  static serializeBinaryToWriter(message: QuestionsResponse, writer: jspb.BinaryWriter): void;
+  static deserializeBinary(bytes: Uint8Array): QuestionsResponse;
+  static deserializeBinaryFromReader(message: QuestionsResponse, reader: jspb.BinaryReader): QuestionsResponse;
+}
+
+export namespace QuestionsResponse {
+  export type AsObject = {
+    questionsList: Array<Question.AsObject>,
+  }
+}
+
+export class QuestionByIDRequest extends jspb.Message {
+  getId(): string;
+  setId(value: string): void;
+
+  serializeBinary(): Uint8Array;
+  toObject(includeInstance?: boolean): QuestionByIDRequest.AsObject;
+  static toObject(includeInstance: boolean, msg: QuestionByIDRequest): QuestionByIDRequest.AsObject;
+  static extensions: {[key: number]: jspb.ExtensionFieldInfo<jspb.Message>};
+  static extensionsBinary: {[key: number]: jspb.ExtensionFieldBinaryInfo<jspb.Message>};
+  static serializeBinaryToWriter(message: QuestionByIDRequest, writer: jspb.BinaryWriter): void;
+  static deserializeBinary(bytes: Uint8Array): QuestionByIDRequest;
+  static deserializeBinaryFromReader(message: QuestionByIDRequest, reader: jspb.BinaryReader): QuestionByIDRequest;
+}
+
+export namespace QuestionByIDRequest {
+  export type AsObject = {
+    id: string,
+  }
+}
+
+export class QuestionInputRequest extends jspb.Message {
+  getId(): string;
+  setId(value: string): void;
+
+  serializeBinary(): Uint8Array;
+  toObject(includeInstance?: boolean): QuestionInputRequest.AsObject;
+  static toObject(includeInstance: boolean, msg: QuestionInputRequest): QuestionInputRequest.AsObject;
+  static extensions: {[key: number]: jspb.ExtensionFieldInfo<jspb.Message>};
+  static extensionsBinary: {[key: number]: jspb.ExtensionFieldBinaryInfo<jspb.Message>};
+  static serializeBinaryToWriter(message: QuestionInputRequest, writer: jspb.BinaryWriter): void;
+  static deserializeBinary(bytes: Uint8Array): QuestionInputRequest;
+  static deserializeBinaryFromReader(message: QuestionInputRequest, reader: jspb.BinaryReader): QuestionInputRequest;
+}
+
+export namespace QuestionInputRequest {
+  export type AsObject = {
+    id: string,
+  }
+}
+
+export class QuestionInput extends jspb.Message {
+  getId(): string;
+  setId(value: string): void;
+
+  getInput(): string;
+  setInput(value: string): void;
+
+  serializeBinary(): Uint8Array;
+  toObject(includeInstance?: boolean): QuestionInput.AsObject;
+  static toObject(includeInstance: boolean, msg: QuestionInput): QuestionInput.AsObject;
+  static extensions: {[key: number]: jspb.ExtensionFieldInfo<jspb.Message>};
+  static extensionsBinary: {[key: number]: jspb.ExtensionFieldBinaryInfo<jspb.Message>};
+  static serializeBinaryToWriter(message: QuestionInput, writer: jspb.BinaryWriter): void;
+  static deserializeBinary(bytes: Uint8Array): QuestionInput;
+  static deserializeBinaryFromReader(message: QuestionInput, reader: jspb.BinaryReader): QuestionInput;
+}
+
+export namespace QuestionInput {
+  export type AsObject = {
+    id: string,
+    input: string,
+  }
+}
+
+export class SubmitRequest extends jspb.Message {
+  getId(): string;
+  setId(value: string): void;
+
+  getAnswer(): string;
+  setAnswer(value: string): void;
+
+  getPart(): boolean;
+  setPart(value: boolean): void;
+
+  getCode(): string;
+  setCode(value: string): void;
+
+  serializeBinary(): Uint8Array;
+  toObject(includeInstance?: boolean): SubmitRequest.AsObject;
+  static toObject(includeInstance: boolean, msg: SubmitRequest): SubmitRequest.AsObject;
+  static extensions: {[key: number]: jspb.ExtensionFieldInfo<jspb.Message>};
+  static extensionsBinary: {[key: number]: jspb.ExtensionFieldBinaryInfo<jspb.Message>};
+  static serializeBinaryToWriter(message: SubmitRequest, writer: jspb.BinaryWriter): void;
+  static deserializeBinary(bytes: Uint8Array): SubmitRequest;
+  static deserializeBinaryFromReader(message: SubmitRequest, reader: jspb.BinaryReader): SubmitRequest;
+}
+
+export namespace SubmitRequest {
+  export type AsObject = {
+    id: string,
+    answer: string,
+    part: boolean,
+    code: string,
+  }
+}
+
+export class SubmitResponse extends jspb.Message {
+  getId(): string;
+  setId(value: string): void;
+
+  getPart(): number;
+  setPart(value: number): void;
+
+  getCorrect(): boolean;
+  setCorrect(value: boolean): void;
+
+  getRanking(): number;
+  setRanking(value: number): void;
+
+  getPoints(): number;
+  setPoints(value: number): void;
+
+  serializeBinary(): Uint8Array;
+  toObject(includeInstance?: boolean): SubmitResponse.AsObject;
+  static toObject(includeInstance: boolean, msg: SubmitResponse): SubmitResponse.AsObject;
+  static extensions: {[key: number]: jspb.ExtensionFieldInfo<jspb.Message>};
+  static extensionsBinary: {[key: number]: jspb.ExtensionFieldBinaryInfo<jspb.Message>};
+  static serializeBinaryToWriter(message: SubmitResponse, writer: jspb.BinaryWriter): void;
+  static deserializeBinary(bytes: Uint8Array): SubmitResponse;
+  static deserializeBinaryFromReader(message: SubmitResponse, reader: jspb.BinaryReader): SubmitResponse;
+}
+
+export namespace SubmitResponse {
+  export type AsObject = {
+    id: string,
+    part: number,
+    correct: boolean,
+    ranking: number,
+    points: number,
+  }
+}
+
 export class UpdateFields extends jspb.Message {
   getName(): string;
   setName(value: string): void;
 
-  getEmail(): string;
-  setEmail(value: string): void;
-
   getGradelevel(): number;
   setGradelevel(value: number): void;
 
@@ -190,7 +409,6 @@ export class UpdateFields extends jspb.Message {
 export namespace UpdateFields {
   export type AsObject = {
     name: string,
-    email: string,
     gradelevel: number,
     admin: boolean,
   }

api/v1/quest.gunk

@@ -0,0 +1,80 @@
+package codequest
+
+import (
+	"github.com/gunk/opt/http"
+	"github.com/gunk/opt/openapiv2"
+	"github.com/gunk/opt/proto"
+	"time"
+)
+
+type QuestService interface {
+	// +gunk http.Match{
+	//         Method: "GET",
+	//         Path:   "/v1/questions",
+	// }
+	Questions() QuestionsResponse
+
+	// +gunk http.Match{
+	//         Method: "GET",
+	//         Path:   "/v1/questions/{ID}",
+	// }
+	QuestionByID(QuestionByIDRequest) Question
+
+	// +gunk http.Match{
+	//         Method: "GET",
+	//         Path:   "/v1/questions/{ID}/input",
+	// }
+	QuestionInput(QuestionInputRequest) QuestionInput
+
+	// +gunk http.Match{
+	//         Method: "POST",
+	//         Path:   "/v1/questions/{ID}",
+	// }
+	Submit(SubmitRequest) SubmitResponse
+}
+
+type PartData struct {
+	Part        int  `pb:"1" json:"part"`
+	Completed   bool `pb:"2" json:"completed"`
+	PointsWorth int  `pb:"3" json:"points_worth"`
+}
+
+type Question struct {
+	ID      string   `pb:"1" json:"id"`
+	Title   string   `pb:"2" json:"title"`
+	Content string   `pb:"3" json:"content"`
+	Part1   PartData `pb:"4" json:"part1"`
+	Part2   PartData `pb:"5" json:"part2"`
+}
+
+type QuestionsResponse struct {
+	Questions []Question `pb:"1" json:"questions"`
+}
+
+type QuestionByIDRequest struct {
+	ID string `pb:"1" json:"id"`
+}
+
+type QuestionInputRequest struct {
+	ID string `pb:"1" json:"id"`
+}
+
+type QuestionInput struct {
+	ID    string `pb:"1" json:"id"`
+	Input string `pb:"2" json:"input"`
+}
+
+type SubmitRequest struct {
+	ID     string `pb:"1" json:"id"`
+	Answer string `pb:"2" json:"content"`
+	Part   bool   `pb:"3" json:"part"`
+	Code   string `pb:"4" json:"code"`
+}
+
+type SubmitResponse struct {
+	ID      string `pb:"1" json:"id"`
+	Part    int    `pb:"2" json:"part"`
+	Correct bool   `pb:"3" json:"correct"`
+	Ranking int    `pb:"4" json:"ranking"`
+	Points  int    `pb:"5" json:"points"`
+}

api/v1/users.gunk

@@ -1,7 +1,6 @@
 package codequest
 
 import (
-	"github.com/gunk/opt/file/java"
 	"github.com/gunk/opt/http"
 	"github.com/gunk/opt/openapiv2"
 	"github.com/gunk/opt/proto"

db/oauth.go

@@ -7,6 +7,7 @@ import (
 	"sync"
 	"time"
 
+	"github.com/hhhapz/codequest/models"
 	"golang.org/x/oauth2"
 	"golang.org/x/oauth2/google"
 )
@@ -18,7 +19,7 @@ const (
 )
 
 type OAuthState struct {
-	*oauth2.Config
+	config *oauth2.Config
 	states map[string]oauthEntry
 	m      sync.Mutex
 }
@@ -40,7 +41,7 @@ func NewOAuthState(path string) (*OAuthState, error) {
 	}
 
 	return &OAuthState{
-		Config: config,
+		config: config,
 		states: make(map[string]oauthEntry),
 		m:      sync.Mutex{},
 	}, nil
@@ -62,32 +63,28 @@ func (o *OAuthState) Create(callback string) string {
 		created:  time.Now(),
 		callback: callback,
 	}
-	return o.Config.AuthCodeURL(state, oauth2.AccessTypeOffline)
+	return o.config.AuthCodeURL(state, oauth2.AccessTypeOffline)
 }
 
-func (o *OAuthState) Validate(state string) (string, bool) {
+func (o *OAuthState) Validate(ctx context.Context, state string, code string) (*oauth2.Token, string, error) {
 	o.m.Lock()
 	defer o.m.Unlock()
 
 	entry, ok := o.states[state]
 	if !ok {
-		return "", false
+		return nil, "", models.NewUserError("invalid state: %q", state)
 	}
 	delete(o.states, state)
-	return entry.callback, true
-}
 
-func (o *OAuthState) Exchange(ctx context.Context, code string) (*oauth2.Token, error) {
-	tk, err := o.Config.Exchange(ctx, code, oauth2.AccessTypeOffline)
-	return tk, err
+	tk, err := o.config.Exchange(ctx, code, oauth2.AccessTypeOffline)
+	return tk, entry.callback, err
 }
 
 func (o *OAuthState) GarbageCycle(period time.Duration, duration time.Duration) {
 	tick := time.NewTicker(period)
 
-	clean := func() {
+	for range tick.C {
 		o.m.Lock()
-		defer o.m.Unlock()
 
 		now := time.Now()
 		for state, entry := range o.states {
@@ -95,12 +92,7 @@ func (o *OAuthState) GarbageCycle(period time.Duration, duration time.Duration)
 				delete(o.states, state)
 			}
 		}
-	}
 
-	for {
-		select {
-		case <-tick.C:
-			clean()
-		}
+		o.m.Unlock()
 	}
 }

db/token.go

@@ -7,7 +7,6 @@ import (
 	"encoding/base64"
 	"errors"
 	"fmt"
-	"log"
 	"time"
 
 	"github.com/hhhapz/codequest/models"
@@ -32,7 +31,6 @@ func (db *DB) CreateToken(ctx context.Context, user *models.User) (*models.Token
 
 		var e sqlite3.Error
 		if errors.As(err, &e) && e.ExtendedCode == sqlite3.ErrConstraintUnique {
-			log.Printf("Duplicate token string generated: %s, recreating", tokenString)
 			token.Token = createToken(48)
 			continue
 		}
@@ -45,7 +43,10 @@ var ErrInvalidToken = errors.New("no results found")
 func (db *DB) UserByToken(ctx context.Context, token string) (*models.User, error) {
 	user, err := models.UserByToken(ctx, db.DB, token)
 	if err == sql.ErrNoRows {
-		return nil, ErrInvalidToken
+		return nil, models.NewUserError("the provided token(%q) does not exist", token)
+	}
+	if err != nil {
+		return nil, err
 	}
 
 	return user, nil

db/user.go

@@ -39,13 +39,21 @@ const (
 	emailDomain      = "@jisedu.or.id"
 )
 
-func (db *DB) ConsumeToken(ctx context.Context, token *oauth2.Token) (*models.Token, bool, error) {
+func (db *DB) ConsumeToken(ctx context.Context, token *oauth2.Token) (*models.Token, error) {
 	endpoint := userinfoEndpoint + token.AccessToken
-	client := http.Client{Timeout: time.Second * 5}
 
-	res, err := client.Get(endpoint)
+	var cancel context.CancelFunc
+	ctx, cancel = context.WithTimeout(ctx, time.Second*5)
+	defer cancel()
+
+	r, err := http.NewRequestWithContext(ctx, "GET", endpoint, nil)
 	if err != nil {
-		return nil, false, fmt.Errorf("could not get userinfo: %w", err)
+		return nil, fmt.Errorf("could not create request: %w", err)
+	}
+
+	res, err := http.DefaultClient.Do(r)
+	if err != nil {
+		return nil, fmt.Errorf("could not get userinfo: %w", err)
 	}
 	defer res.Body.Close()
 
@@ -53,30 +61,25 @@ func (db *DB) ConsumeToken(ctx context.Context, token *oauth2.Token) (*models.To
 		CreatedAt: models.NewTime(time.Now()),
 	}
 	if err := json.NewDecoder(res.Body).Decode(&user); err != nil {
-		return nil, false, fmt.Errorf("could not decode userinfo json: %w", err)
-	}
-
-	if u, err := db.User(ctx, user.Email); err == nil {
-		var tk *models.Token
-		if tk, err = db.CreateToken(ctx, u); err != nil {
-			return nil, false, fmt.Errorf("could not create user token: %w", err)
-		}
-		return tk, true, nil
+		return nil, fmt.Errorf("could not decode userinfo json: %w", err)
 	}
 
+	// register new user
+	if _, err := db.User(ctx, user.Email); err != nil {
 		if !strings.HasSuffix(user.Email, emailDomain) {
-		return nil, true, fmt.Errorf("invalid registration email %q: must end with %q", user.Email, emailDomain)
+			return nil, models.NewUserError("invalid registration email: %s", user.Email)
 		}
 
 		err = db.UpdateUser(ctx, user)
 		if err != nil {
-		return nil, false, fmt.Errorf("could not create user: %w", err)
+			return nil, fmt.Errorf("could not create user: %w", err)
+		}
 	}
 
+	// gen new token
 	tk, err := db.CreateToken(ctx, user)
 	if err != nil {
-		return nil, false, fmt.Errorf("could not create user token: %w", err)
+		return nil, fmt.Errorf("could not create user token: %w", err)
 	}
-
-	return tk, true, nil
+	return tk, nil
 }

go.mod

@@ -21,6 +21,7 @@ require (
 	github.com/golang/protobuf v1.5.2 // indirect
 	github.com/googleapis/gax-go/v2 v2.1.1 // indirect
 	github.com/gorilla/css v1.0.0 // indirect
+	github.com/gunk/opt v0.2.0 // indirect
 	github.com/kenshaw/diskcache v0.5.1 // indirect
 	github.com/kenshaw/httplog v0.4.0 // indirect
 	github.com/kenshaw/redoc v0.1.3 // indirect

go.sum

@@ -177,6 +177,8 @@ github.com/grpc-ecosystem/grpc-gateway v1.16.0 h1:gmcG1KaJ57LophUzW0Hy8NmPhnMZb4
 github.com/grpc-ecosystem/grpc-gateway v1.16.0/go.mod h1:BDjrQk3hbvj6Nolgz8mAMFbcEtjT1g+wF4CSlocrBnw=
 github.com/grpc-ecosystem/grpc-gateway/v2 v2.6.0 h1:rgxjzoDmDXw5q8HONgyHhBas4to0/XWRo/gPpJhsUNQ=
 github.com/grpc-ecosystem/grpc-gateway/v2 v2.6.0/go.mod h1:qrJPVzv9YlhsrxJc3P/Q85nr0w1lIRikTl4JlhdDH5w=
+github.com/gunk/opt v0.2.0 h1:TAfvX5vrEuMEVXs/XnaJMam9q27d9noVsXbQ4V9LAnA=
+github.com/gunk/opt v0.2.0/go.mod h1:Pp/fgnNbbjanUyvaIZ+4eMPAcZNHuro8QjpVSNxwJJU=
 github.com/hashicorp/golang-lru v0.5.0/go.mod h1:/m3WP610KZHVQ1SGc6re/UDhFvYD7pJ4Ao+sR/qLZy8=
 github.com/hashicorp/golang-lru v0.5.1/go.mod h1:/m3WP610KZHVQ1SGc6re/UDhFvYD7pJ4Ao+sR/qLZy8=
 github.com/ianlancetaylor/demangle v0.0.0-20181102032728-5e5cf60278f6/go.mod h1:aSSvb/t6k1mPoxDqO4vJh6VOCGPwU4O0C2/Eqndh1Sc=

models/codequest.go

@@ -0,0 +1,15 @@
+package models
+
+import "fmt"
+
+type UserError struct {
+	reason string
+}
+
+func NewUserError(message string, args ...interface{}) UserError {
+	return UserError{fmt.Sprintf(message, args...)}
+}
+
+func (e UserError) Error() string {
+	return e.reason
+}

question/q01.go

@@ -1,150 +0,0 @@
-package question
-
-import (
-	_ "embed"
-	"fmt"
-	"math"
-	"math/rand"
-	"strconv"
-	"strings"
-
-	"github.com/hhhapz/codequest/models"
-)
-
-func move(x, y int, dir byte, step int) (int, int) {
-	switch dir {
-	case 'N':
-		return x, y + step
-	case 'S':
-		return x, y - step
-	case 'E':
-		return x + step, y
-	case 'W':
-		return x - step, y
-	}
-	return x, y
-}
-
-func q1P1(steps []string) (x int, y int) {
-	for _, step := range steps {
-		dir := step[0]
-		amt, _ := strconv.Atoi(step[1:])
-		x, y = move(x, y, dir, amt)
-	}
-	return
-}
-
-func q1P2(steps []string) (x int, y int) {
-	known := make(map[int]map[int]bool)
-
-	for _, step := range steps {
-		dir := step[0]
-		amt, _ := strconv.Atoi(step[1:])
-		x, y = move(x, y, dir, amt)
-
-		if known[x] == nil {
-			known[x] = make(map[int]bool)
-		}
-		if known[x][y] {
-			return
-		}
-		known[x][y] = true
-	}
-	return
-}
-
-func q1Total(a, b int) int {
-	if a < 0 {
-		a = -a
-	}
-	if b < 0 {
-		b = -b
-	}
-	return a + b
-}
-
-const (
-	q1Entries  = 100
-	q1Range    = 20
-	directions = "NSWE"
-)
-
-func init() {
-	var q *Question
-	q = &Question{
-		ID:    "directions",
-		Text:  q01Text,
-		Level: Level1,
-		Generate: func(u *models.User) string {
-			res := make([]string, 0, 100)
-
-			r := userRandom(u)
-
-			known := make(map[int]map[int]bool)
-			var x, y int
-			for i := 0; i < q1Entries; i++ {
-				dir := directions[r.Intn(4)]
-				steps := r.Intn(30) + 1
-				newX, newY := move(x, y, dir, steps)
-
-				if known[newX] == nil {
-					known[newX] = make(map[int]bool)
-				}
-				if known[newX][newY] {
-					i--
-					continue
-				}
-
-				known[newX][newY] = true
-				x, y = newX, newY
-
-				res = append(res, fmt.Sprintf("%c%d", dir, steps))
-			}
-
-			n := rand.Intn(q1Range) + 10
-			locX, locY := q1P1(res[:n])
-
-			n = rand.Intn(q1Range) + 35
-			lastX, lastY := q1P1(res[:n])
-
-			dX := math.Max(float64(locX), float64(lastX)) - math.Min(float64(locX), float64(lastX))
-			dY := math.Max(float64(locY), float64(lastY)) - math.Min(float64(locY), float64(lastY))
-
-			if locX > lastX {
-				res[n] = fmt.Sprintf("E%d", int(dX))
-				n++
-			} else if locX < lastX {
-				res[n] = fmt.Sprintf("W%d", int(dX))
-				n++
-			}
-
-			if locY > lastY {
-				res[n] = fmt.Sprintf("N%d", int(dY))
-			} else if locY < lastY {
-				res[n] = fmt.Sprintf("S%d", int(dY))
-			}
-
-			return strings.Join(res, "\n")
-		},
-
-		Validate: func(u *models.User, level Part, input string) bool {
-			raw := q.Generate(u)
-			inp := strings.Split(raw, "\n")
-
-			switch level {
-			case Part1:
-				x, y := q1P1(inp)
-				return q1Total(x, y) == 0
-			case Part2:
-				x, y := q1P2(inp)
-				return q1Total(x, y) == 0
-			}
-			return false
-		},
-	}
-
-	Register(q)
-}
-
-//go:embed prompts/q01.md
-var q01Text string

question/q01/part1.go

@@ -0,0 +1,26 @@
+package q01
+
+import "strconv"
+
+func move(x, y int, dir byte, step int) (int, int) {
+	switch dir {
+	case 'N':
+		return x, y + step
+	case 'S':
+		return x, y - step
+	case 'E':
+		return x + step, y
+	case 'W':
+		return x - step, y
+	}
+	return x, y
+}
+
+func solveP1(steps []string) (x int, y int) {
+	for _, step := range steps {
+		dir := step[0]
+		amt, _ := strconv.Atoi(step[1:])
+		x, y = move(x, y, dir, amt)
+	}
+	return
+}

question/q01/part2.go

@@ -0,0 +1,22 @@
+package q01
+
+import "strconv"
+
+func solveP2(steps []string) (x int, y int) {
+	known := make(map[int]map[int]bool)
+
+	for _, step := range steps {
+		dir := step[0]
+		amt, _ := strconv.Atoi(step[1:])
+		x, y = move(x, y, dir, amt)
+
+		if known[x] == nil {
+			known[x] = make(map[int]bool)
+		}
+		if known[x][y] {
+			return
+		}
+		known[x][y] = true
+	}
+	return
+}

question/q01/q01.go

@@ -0,0 +1,131 @@
+package q01
+
+import (
+	_ "embed"
+	"fmt"
+	"strconv"
+	"strings"
+
+	"github.com/hhhapz/codequest/models"
+	"github.com/hhhapz/codequest/question"
+)
+
+func init() {
+	question.Register(
+		&question.Question{
+			ID:    "directions",
+			Name:  "No Time for Directions!",
+			Text:  q01Text,
+			Level: question.Level1,
+			Generate: func(u *models.User) string {
+				return strings.Join(generate(u), "\n")
+			},
+			Validate: func(u *models.User, part question.Part, solution string) bool {
+				return Validate(u, part, solution)
+			},
+		})
+}
+
+func total(a, b int) int {
+	if a < 0 {
+		a = -a
+	}
+	if b < 0 {
+		b = -b
+	}
+	return a + b
+}
+
+const (
+	// totalSteps in the input
+	totalSteps = 100
+
+	// stepRange is the range of steps within each step
+	stepRange = 30
+
+	// randRage is the range of steps between where the duplicate will be
+	// present
+	randRange = 20
+
+	// earliestCandidate the earliest step where the duplicate candidate is
+	earliestCandidate = 10
+
+	// earliestDupe is the earliest step where the candidate is visited
+	earliestDupe = 35
+
+	// directions for a step
+	directions = "NSWE"
+)
+
+func generate(u *models.User) []string {
+	res := make([]string, 0, totalSteps)
+
+	r := question.UserRandom(u)
+
+	// known is used to disallow duplicate steps before the chosen dupe
+	known := make(map[int]map[int]bool)
+	var x, y int
+
+	for len(res) != cap(res) {
+		dir := directions[r.Intn(4)]
+		steps := r.Intn(stepRange) + 1
+
+		newX, newY := move(x, y, dir, steps)
+		if known[newX] == nil {
+			known[newX] = make(map[int]bool)
+		}
+		if known[newX][newY] {
+			continue
+		}
+
+		known[newX][newY] = true
+		x, y = newX, newY
+
+		res = append(res, fmt.Sprintf("%c%d", dir, steps))
+	}
+
+	// the location of the candidate for the duplicate
+	n := r.Intn(randRange) + earliestCandidate
+	locX, locY := solveP1(res[:n])
+
+	// the location where the candidate is revisited
+	n = r.Intn(randRange) + earliestDupe
+	lastX, lastY := solveP2(res[:n])
+
+	// jump to the candidate
+	if locX > lastX {
+		res[n] = fmt.Sprintf("E%d", locX-lastX)
+		n++
+	} else if locX < lastX {
+		res[n] = fmt.Sprintf("W%d", lastX-locX)
+		n++
+	}
+
+	if locY > lastY {
+		res[n] = fmt.Sprintf("N%d", locY-lastY)
+	} else if locY < lastY {
+		res[n] = fmt.Sprintf("S%d", lastY-locY)
+	}
+
+	return res
+}
+
+func Validate(u *models.User, p question.Part, sol string) bool {
+	inp := generate(u)
+
+	var t int
+	switch p {
+	case question.Part1:
+		t = total(solveP1(inp))
+	case question.Part2:
+		t = total(solveP2(inp))
+
+	default:
+		return false
+	}
+
+	return strconv.Itoa(t) == sol
+}
+
+//go:embed q01.md
+var q01Text string

question/q01/q01.md

@@ -1,6 +1,6 @@
 # No Time For Directions!
 
-**Hermes** is the Greek god, and amongst others, he is the god of travel, trade, and athletes.
+**Hermes** is the Greek god of, amongst others, travel, trade, and athletes.
 Hermes has placed his hope in you.
 
 You're dropped to a random location near Mount Cyllene in Arcadia, widely considered the birthplace

question/q01/q01_test.go

@@ -0,0 +1,54 @@
+package q01
+
+import (
+	"strconv"
+	"strings"
+	"testing"
+
+	"github.com/hhhapz/codequest/models"
+	"github.com/hhhapz/codequest/question"
+)
+
+func TestQ01(t *testing.T) {
+	u := &models.User{
+		ID: "12031209571980516",
+	}
+
+	q := question.QuestionByID("directions")
+
+	raw := q.Generate(u)
+	input := strings.Split(raw, "\n")
+
+	res := total(solveP1(input))
+	if !q.Validate(u, question.Part1, strconv.Itoa(res)) {
+		t.Errorf("Expected question 1 part 1(%v) to be correct!", res)
+	}
+
+	res = total(solveP2(input))
+	if !q.Validate(u, question.Part2, strconv.Itoa(res)) {
+		t.Errorf("Expected question 2 part 2(%v) to be correct!", res)
+	}
+
+	if q.Validate(u, question.Part1, "") {
+		t.Errorf("Expected bad input to be invalid")
+	}
+
+	if t.Failed() {
+		t.Logf("Input:\n%v", raw)
+	}
+}
+
+func TestQ01Idempotent(t *testing.T) {
+	q := question.QuestionByID("directions")
+
+	u1 := &models.User{ID: "1"}
+	raw1 := q.Generate(u1)
+
+	u2 := &models.User{ID: "2"}
+	_ = q.Generate(u2)
+
+	raw2 := q.Generate(u1)
+	if raw1 != raw2 {
+		t.Errorf("Expected raw1 and raw2 to be the same")
+	}
+}

question/q01_test.go

@@ -1,29 +0,0 @@
-package question
-
-import (
-	"fmt"
-	"strings"
-	"testing"
-
-	"github.com/hhhapz/codequest/models"
-)
-
-func TestQ01(t *testing.T) {
-	u := &models.User{
-		ID: "0",
-	}
-
-	q := QuestionByID("directions")
-
-	input := q.Generate(u)
-
-	fmt.Println("STAAART")
-	x, y := q1P1(strings.Split(input, "\n"))
-	fmt.Println("STAAART")
-
-	t.Logf("SOLUTION (P1): (%d, %d): %d", x, y, q1Total(x, y))
-	x, y = q1P2(strings.Split(input, "\n"))
-	t.Logf("SOLUTION (P2): (%d, %d): %d", x, y, q1Total(x, y))
-
-	fmt.Printf("INPUT: %v", input)
-}

question/q02.go

@@ -1,11 +0,0 @@
-package question
-
-func init() {
-	Register(&Question{
-		ID:       "",
-		Text:     "",
-		Level:    0,
-		Generate: nil,
-		Validate: nil,
-	})
-}

question/q02/part1.go

@@ -0,0 +1,21 @@
+package q02
+
+func gcd(a, b int64) int64 {
+	for b != 0 {
+		a, b = b, a%b
+	}
+	return a
+}
+
+func lcm(nums []int) int64 {
+	result := int64(nums[0])
+	for i := range nums {
+		n := int64(nums[i])
+		result = result * n / gcd(result, n)
+	}
+	return result
+}
+
+func solveP1(ships []int) int64 {
+	return lcm(ships)
+}

question/q02/part2.go

@@ -0,0 +1,12 @@
+package q02
+
+func solveP2(ships []int) int64 {
+	lcm := solveP1(ships)
+	var res int64
+
+	for _, v := range ships {
+		res += lcm / int64(v)
+	}
+
+	return res
+}

question/q02/q02.go

@@ -0,0 +1,87 @@
+package q02
+
+import (
+	_ "embed"
+	"math"
+	"math/big"
+	"strconv"
+	"strings"
+
+	"github.com/hhhapz/codequest/models"
+	"github.com/hhhapz/codequest/question"
+)
+
+func init() {
+	question.Register(
+		&question.Question{
+			ID:    "saturnalia",
+			Name:  "Saturnalia's Problem",
+			Text:  q02Text,
+			Level: question.Level1,
+			Generate: func(u *models.User) string {
+				inp := generate(u)
+				var res []string
+
+				for _, n := range inp {
+					res = append(res, strconv.Itoa(n))
+				}
+				return strings.Join(res, "\n")
+			},
+			Validate: func(u *models.User, part question.Part, solution string) bool {
+				return Validate(u, part, solution)
+			},
+		})
+}
+
+func bigLCM(a, b *big.Int) *big.Int {
+	return big.NewInt(0).Div(big.NewInt(0).Mul(a, b), big.NewInt(0).GCD(nil, nil, a, b))
+}
+
+const (
+	ships = 25
+
+	minNum = 3
+	maxNum = 100
+)
+
+var maxLCM = big.NewInt(math.MaxInt64 / 100)
+
+func generate(u *models.User) []int {
+	res := make([]int, 0, ships)
+
+	r := question.UserRandom(u)
+
+	lcm := big.NewInt(1)
+	for len(res) != cap(res) {
+		n := r.Intn(maxNum-minNum) + minNum
+
+		nLcm := bigLCM(lcm, big.NewInt(int64(n)))
+		if nLcm.Cmp(maxLCM) > 0 {
+			continue
+		}
+		lcm = nLcm
+
+		res = append(res, n)
+	}
+	return res
+}
+
+func Validate(u *models.User, p question.Part, sol string) bool {
+	inp := generate(u)
+
+	var t int64
+	switch p {
+	case question.Part1:
+		t = solveP1(inp)
+	case question.Part2:
+		t = solveP2(inp)
+
+	default:
+		return false
+	}
+
+	return strconv.FormatInt(t, 10) == sol
+}
+
+//go:embed q02.md
+var q02Text string

question/q02/q02.md

@@ -0,0 +1,88 @@
+# Saturnalia's Problem
+
+**Kronos** is the father of the Olympian gods, and is the king of the Titans. He is the Titan god of
+Time, Justice, and Evil.
+
+After the Olympians defeated the titans, Kronos was given a new fate: he now rules over the Isles of
+the Blessed and the region of Latium near the Roman Empire. Next month, the festival **Saturnalia**.
+
+You've been given the task to schedule and organize the arrival of the citizens of Isles of the
+Blessed and Latium to reach Mount Othrys by ship.
+
+Unfortunately, there are far too many ships to calculate this all by hand. Each ship takes a
+different amount of time to return back to Mount Othrys, and you need to make sure everyone arrives
+at the same time.
+
+You have been given the shipping planner, that tells you how long it takes for each ship to reach
+either Isles of the Blessed or Latium, in minutes, and return back.
+
+Each ship initially departs at the same time, and continues to do as many rounds as needed, such
+that **each ship returns back to Mount Othrys at the same time**.
+
+Your task is to determine for the given ships, what is the fewest number of minutes until each ship
+returns back at the same time after the leave?
+
+### Example
+
+- Given the following input
+
+
+```
+3
+5
+9
+```
+
+  Says that there are 3 different ships. The first one takes `3` minutes to complete a cycle, the
+  second takes `5`, and `9` minutes for last ship. After `45` minutes, all of them will return back
+  to Mount Othrys **at the same time**.
+
+- Given the following input
+
+```
+3
+12
+15
+9
+5
+73
+19
+49
+10
+13
+```
+
+  Says that there are a total of 10 ships, and all of them will return back after `159,033,420`
+  minutes.
+
+
+**How many minutes** will your ships take to all return back at the same time?
+
+Hint: The numbers might get a bit large here!
+
+{{ if eq .Part 2 }}
+
+**Congratulations! You got Part 1 correct. Your answer was `{{ .Answer1 }}`.**
+
+## Part 2
+
+To continue planning for the journey, Kronos needs figure out what the total number of journeys will
+be for each ship, summed all together.
+
+### Example
+
+Given the following input:
+
+```
+3
+5
+9
+```
+
+The total duration will still be `45` minutes before all the ships return again to the same
+position. In this time, the first ship will complete `15` trips, the second ship will complete `9`
+trips, and the last ship will complete `5` trips, for a total of `29` trips.
+
+With these new instructions, **how many steps total trips will all the ships complete?**
+
+{{ end }}

question/q02/q02_test.go

@@ -0,0 +1,58 @@
+package q02
+
+import (
+	"strconv"
+	"strings"
+	"testing"
+
+	"github.com/hhhapz/codequest/models"
+	"github.com/hhhapz/codequest/question"
+)
+
+func TestQ02(t *testing.T) {
+	u := &models.User{
+		ID: "1203120957198056",
+	}
+
+	q := question.QuestionByID("saturnalia")
+
+	raw := q.Generate(u)
+	var input []int
+
+	for _, s := range strings.Split(raw, "\n") {
+		i, _ := strconv.Atoi(s)
+		input = append(input, i)
+	}
+
+	res := solveP1(input)
+	t.Logf("part 1 result: %d", res)
+	if !q.Validate(u, question.Part1, strconv.FormatInt(res, 10)) {
+		t.Errorf("Expected question 1 part 1(%v) to be correct!", res)
+	}
+
+	res = solveP2(input)
+	if !q.Validate(u, question.Part2, strconv.FormatInt(res, 10)) {
+		t.Errorf("Expected question 2 part 2(%v) to be correct!", res)
+	}
+
+	if q.Validate(u, question.Part1, "") {
+		t.Errorf("Expected bad input to be invalid")
+	}
+
+	t.Logf("Input:\n%v", raw)
+}
+
+func TestQ02Idempotent(t *testing.T) {
+	q := question.QuestionByID("saturnalia")
+
+	u1 := &models.User{ID: "1"}
+	raw1 := q.Generate(u1)
+
+	u2 := &models.User{ID: "2"}
+	_ = q.Generate(u2)
+
+	raw2 := q.Generate(u1)
+	if raw1 != raw2 {
+		t.Errorf("Expected raw1 and raw2 to be the same")
+	}
+}

question/question.go

@@ -36,6 +36,7 @@ func Questions(user *models.User, level Level) []*Question {
 
 type Question struct {
 	ID    string
+	Name  string
 	Text  string
 	Level Level
 
@@ -57,12 +58,12 @@ const (
 	Part2
 )
 
-func userRandom(u *models.User) *rand.Rand {
+// TODO: Internal autoincrement id
+func UserRandom(u *models.User) *rand.Rand {
 	id := u.ID
 	if len(id) > 17 {
 		id = id[:17]
 	}
 	seed, _ := strconv.ParseInt(id, 10, 64)
-
 	return rand.New(rand.NewSource(seed))
 }