feat:

go.mod

@@ -5,20 +5,23 @@ go 1.21.3
 toolchain go1.22.0
 
 require (
+	github.com/DATA-DOG/go-sqlmock v1.5.2
 	github.com/ilyakaznacheev/cleanenv v1.5.0
 	github.com/jackc/pgerrcode v0.0.0-20240316143900-6e2875d9b438
 	github.com/open-policy-agent/opa v0.67.1
+	github.com/stretchr/testify v1.9.0
+	github.com/valkey-io/valkey-go v1.0.47
 	go.uber.org/zap v1.27.0
 	google.golang.org/grpc v1.65.0
 	google.golang.org/protobuf v1.34.2
 )
 
 require (
-	git.sch9.ru/new_gate/models v0.0.1 // indirect
 	github.com/OneOfOne/xxhash v1.2.8 // indirect
 	github.com/agnivade/levenshtein v1.1.1 // indirect
 	github.com/beorn7/perks v1.0.1 // indirect
 	github.com/cespare/xxhash/v2 v2.3.0 // indirect
+	github.com/davecgh/go-spew v1.1.2-0.20180830191138-d8f796af33cc // indirect
 	github.com/go-ini/ini v1.67.0 // indirect
 	github.com/go-logr/logr v1.4.2 // indirect
 	github.com/go-logr/stdr v1.2.2 // indirect
@@ -28,6 +31,7 @@ require (
 	github.com/jackc/pgpassfile v1.0.0 // indirect
 	github.com/jackc/pgservicefile v0.0.0-20221227161230-091c0ba34f0a // indirect
 	github.com/jackc/puddle/v2 v2.2.1 // indirect
+	github.com/pmezard/go-difflib v1.0.0 // indirect
 	github.com/prometheus/client_golang v1.19.1 // indirect
 	github.com/prometheus/client_model v0.6.1 // indirect
 	github.com/prometheus/common v0.48.0 // indirect
@@ -35,7 +39,6 @@ require (
 	github.com/rcrowley/go-metrics v0.0.0-20200313005456-10cdbea86bc0 // indirect
 	github.com/sirupsen/logrus v1.9.3 // indirect
 	github.com/tchap/go-patricia/v2 v2.3.1 // indirect
-	github.com/valkey-io/valkey-go v1.0.47 // indirect
 	github.com/xeipuuv/gojsonpointer v0.0.0-20190905194746-02993c407bfb // indirect
 	github.com/xeipuuv/gojsonreference v0.0.0-20180127040603-bd5ef7bd5415 // indirect
 	github.com/yashtewari/glob-intersection v0.2.0 // indirect

go.sum

@@ -1,11 +1,11 @@
 filippo.io/edwards25519 v1.1.0 h1:FNf4tywRC1HmFuKW5xopWpigGjJKiJSV0Cqo0cJWDaA=
 filippo.io/edwards25519 v1.1.0/go.mod h1:BxyFTGdWcka3PhytdK4V28tE5sGfRvvvRV7EaN4VDT4=
-git.sch9.ru/new_gate/models v0.0.0-20240923183834-466a81903af8 h1:PwRvUZ1iSZO1Na+0HXpjYiCgt5gxqh3aKbWtV64FDXk=
-git.sch9.ru/new_gate/models v0.0.0-20240923183834-466a81903af8/go.mod h1:oLUfkN1hwclYTj8Y+br5ShZHLB4y2StRwf+mhc33NNc=
 git.sch9.ru/new_gate/models v0.0.1 h1:VmRUUNNFrX1ZN26wuyfa5Z8il7VuIN49XjXsCtDQhLs=
 git.sch9.ru/new_gate/models v0.0.1/go.mod h1:oLUfkN1hwclYTj8Y+br5ShZHLB4y2StRwf+mhc33NNc=
 github.com/BurntSushi/toml v1.2.1 h1:9F2/+DoOYIOksmaJFPw1tGFy1eDnIJXg+UHjuD8lTak=
 github.com/BurntSushi/toml v1.2.1/go.mod h1:CxXYINrC8qIiEnFrOxCa7Jy5BFHlXnUU2pbicEuybxQ=
+github.com/DATA-DOG/go-sqlmock v1.5.2 h1:OcvFkGmslmlZibjAjaHm3L//6LiuBgolP7OputlJIzU=
+github.com/DATA-DOG/go-sqlmock v1.5.2/go.mod h1:88MAG/4G7SMwSE3CeA0ZKzrT5CiOU3OJ+JlNzwDqpNU=
 github.com/OneOfOne/xxhash v1.2.8 h1:31czK/TI9sNkxIKfaUfGlU47BAxQ0ztGgd9vPyqimf8=
 github.com/OneOfOne/xxhash v1.2.8/go.mod h1:eZbhyaAYD41SGSSsnmcpxVoRiQ/MPUTjUdIIOT9Um7Q=
 github.com/agnivade/levenshtein v1.1.1 h1:QY8M92nrzkmr798gCo3kmMyqXFzdQVpxLlGPRBij0P8=
@@ -88,6 +88,7 @@ github.com/jmoiron/sqlx v1.4.0 h1:1PLqN7S1UYp5t4SrVVnt4nUVNemrDAtxlulVe+Qgm3o=
 github.com/jmoiron/sqlx v1.4.0/go.mod h1:ZrZ7UsYB/weZdl2Bxg6jCRO9c3YHl8r3ahlKmRT4JLY=
 github.com/joho/godotenv v1.5.1 h1:7eLL/+HRGLY0ldzfGMeQkb7vMd0as4CfYvUVzLqw0N0=
 github.com/joho/godotenv v1.5.1/go.mod h1:f4LDr5Voq0i2e/R5DDNOoa2zzDfwtkZa6DnEwAbqwq4=
+github.com/kisielk/sqlstruct v0.0.0-20201105191214-5f3e10d3ab46/go.mod h1:yyMNCyc/Ib3bDTKd379tNMpB/7/H5TjM2Y9QJ5THLbE=
 github.com/klauspost/compress v1.17.0 h1:Rnbp4K9EjcDuVuHtd0dgA4qNuv9yKDYKK1ulpJwgrqM=
 github.com/klauspost/compress v1.17.0/go.mod h1:ntbaceVETuRiXiv4DpjP66DpAtAGkEQskQzEyD//IeE=
 github.com/kr/pretty v0.3.1 h1:flRD4NNwYAUpkphVc1HcthR4KEIFJ65n8Mw5qdRn3LE=
@@ -100,6 +101,8 @@ github.com/mattn/go-sqlite3 v1.14.22 h1:2gZY6PC6kBnID23Tichd1K+Z0oS6nE/XwU+Vz/5o
 github.com/mattn/go-sqlite3 v1.14.22/go.mod h1:Uh1q+B4BYcTPb+yiD3kU8Ct7aC0hY9fxUwlHK0RXw+Y=
 github.com/miekg/dns v1.1.57 h1:Jzi7ApEIzwEPLHWRcafCN9LZSBbqQpxjt/wpgvg7wcM=
 github.com/miekg/dns v1.1.57/go.mod h1:uqRjCRUuEAA6qsOiJvDd+CFo/vW+y5WR6SNmHE55hZk=
+github.com/onsi/gomega v1.34.1 h1:EUMJIKUjM8sKjYbtxQI9A4z2o+rruxnzNvpknOXie6k=
+github.com/onsi/gomega v1.34.1/go.mod h1:kU1QgUvBDLXBJq618Xvm2LUX6rSAfRaFRTcdOeDLwwY=
 github.com/open-policy-agent/opa v0.67.1 h1:rzy26J6g1X+CKknAcx0Vfbt41KqjuSzx4E0A8DAZf3E=
 github.com/open-policy-agent/opa v0.67.1/go.mod h1:aqKlHc8E2VAAylYE9x09zJYr/fYzGX+JKne89UGqFzk=
 github.com/pkg/errors v0.9.1 h1:FEBLx1zS214owpjy7qsBeixbURkuhQAwrK5UwLGTwt4=
@@ -161,6 +164,8 @@ go.uber.org/zap v1.27.0 h1:aJMhYGrd5QSmlpLMr2MftRKl7t8J8PTZPA732ud/XR8=
 go.uber.org/zap v1.27.0/go.mod h1:GB2qFLM7cTU87MWRP2mPIjqfIDnGu+VIO4V/SdhGo2E=
 golang.org/x/crypto v0.25.0 h1:ypSNr+bnYL2YhwoMt2zPxHFmbAN1KZs/njMG3hxUp30=
 golang.org/x/crypto v0.25.0/go.mod h1:T+wALwcMOSE0kXgUAnPAHqTLW+XHgcELELW8VaDgm/M=
+golang.org/x/exp v0.0.0-20240719175910-8a7402abbf56 h1:2dVuKD2vS7b0QIHQbpyTISPd0LeHDbnYEryqj5Q1ug8=
+golang.org/x/exp v0.0.0-20240719175910-8a7402abbf56/go.mod h1:M4RDyNAINzryxdtnbRXRL/OHtkFuWGRjvuhBJpk2IlY=
 golang.org/x/mod v0.17.0 h1:zY54UmvipHiNd+pm+m0x9KhZ9hl1/7QNMyxXbc6ICqA=
 golang.org/x/mod v0.17.0/go.mod h1:hTbmBsO62+eylJbnUtE2MGJUyE7QWk4xUqPFrRgJ+7c=
 golang.org/x/net v0.27.0 h1:5K3Njcw06/l2y9vpGCSdcxWOYHOUk3dVNGDXN+FvAys=
@@ -168,8 +173,6 @@ golang.org/x/net v0.27.0/go.mod h1:dDi0PyhWNoiUOrAS8uXv/vnScO4wnHQO4mj9fn/RytE=
 golang.org/x/sync v0.7.0 h1:YsImfSBoP9QPYL0xyKJPq0gcaJdG3rInoqxTWbfQu9M=
 golang.org/x/sync v0.7.0/go.mod h1:Czt+wKu1gCyEFDUtn0jG5QVvpJ6rzVqr5aXyt9drQfk=
 golang.org/x/sys v0.0.0-20220715151400-c0bba94af5f8/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
-golang.org/x/sys v0.22.0 h1:RI27ohtqKCnwULzJLqkv897zojh5/DwS/ENaMzUOaWI=
-golang.org/x/sys v0.22.0/go.mod h1:/VUhepiaJMQUp4+oa/7Zr1D23ma6VTLIYjOOTFZPUcA=
 golang.org/x/sys v0.24.0 h1:Twjiwq9dn6R1fQcyiK+wQyHWfaz/BJB+YIpzU/Cv3Xg=
 golang.org/x/sys v0.24.0/go.mod h1:/VUhepiaJMQUp4+oa/7Zr1D23ma6VTLIYjOOTFZPUcA=
 golang.org/x/text v0.16.0 h1:a94ExnEXNtEwYLGJSIUxnWoxoRz/ZcCsV63ROupILh4=

internal/contests/delivery.go

@@ -1,4 +1,13 @@
 package contests
 
+import (
+	"context"
+	contestv1 "git.sch9.ru/new_gate/ms-tester/pkg/go/gen/proto/contest/v1"
+	"google.golang.org/protobuf/types/known/emptypb"
+)
+
 type ContestHandlers interface {
+	CreateContest(ctx context.Context, req *contestv1.CreateContestRequest) (*contestv1.CreateContestResponse, error)
+	ReadContest(ctx context.Context, req *contestv1.ReadContestRequest) (*contestv1.ReadContestResponse, error)
+	DeleteContest(ctx context.Context, req *contestv1.DeleteContestRequest) (*emptypb.Empty, error)
 }

internal/contests/delivery/grpc/handlers.go

@@ -1 +1,51 @@
 package grpc
+
+import (
+	"context"
+	"git.sch9.ru/new_gate/ms-tester/internal/contests"
+	contestv1 "git.sch9.ru/new_gate/ms-tester/pkg/go/gen/proto/contest/v1"
+	"git.sch9.ru/new_gate/ms-tester/pkg/utils"
+	"google.golang.org/grpc"
+	"google.golang.org/protobuf/types/known/emptypb"
+)
+
+type ContestHandlers struct {
+	contestv1.UnimplementedContestServiceServer
+
+	contestUC contests.ContestUseCase
+}
+
+func NewContestHandlers(gserver *grpc.Server, contestUC contests.ContestUseCase) {
+	handlers := &ContestHandlers{contestUC: contestUC}
+
+	contestv1.RegisterContestServiceServer(gserver, handlers)
+}
+
+func (h *ContestHandlers) CreateContest(ctx context.Context, req *contestv1.CreateContestRequest) (*contestv1.CreateContestResponse, error) {
+	id, err := h.contestUC.CreateContest(ctx, req.GetTitle())
+	if err != nil {
+		return nil, err
+	}
+	return &contestv1.CreateContestResponse{Id: id}, nil
+}
+
+func (h *ContestHandlers) ReadContest(ctx context.Context, req *contestv1.ReadContestRequest) (*contestv1.ReadContestResponse, error) {
+	contest, err := h.contestUC.ReadContestById(ctx, req.GetId())
+	if err != nil {
+		return nil, err
+	}
+	return &contestv1.ReadContestResponse{Contest: &contestv1.ReadContestResponse_Contest{
+		Id:        *contest.Id,
+		Title:     *contest.Title,
+		CreatedAt: utils.TimestampP(contest.CreatedAt),
+		UpdatedAt: utils.TimestampP(contest.UpdatedAt),
+	}}, nil
+}
+
+func (h *ContestHandlers) DeleteContest(ctx context.Context, req *contestv1.DeleteContestRequest) (*emptypb.Empty, error) {
+	err := h.contestUC.DeleteContest(ctx, req.GetId())
+	if err != nil {
+		return nil, err
+	}
+	return &emptypb.Empty{}, nil
+}

internal/contests/pg_repository.go

@@ -2,12 +2,11 @@ package contests
 
 import (
 	"context"
-	"git.sch9.ru/new_gate/models"
+	"git.sch9.ru/new_gate/ms-tester/internal/models"
 )
 
 type ContestRepository interface {
-	CreateContest(ctx context.Context, contest *models.Contest) (int32, error)
+	CreateContest(ctx context.Context, title string) (int32, error)
 	ReadContestById(ctx context.Context, id int32) (*models.Contest, error)
-	UpdateContest(ctx context.Context, contest *models.Contest) error
 	DeleteContest(ctx context.Context, id int32) error
 }

internal/contests/repository/participants.go

@@ -1,79 +0,0 @@
-package repository
-
-import (
-	"context"
-	"git.sch9.ru/new_gate/models"
-	"github.com/jmoiron/sqlx"
-	"go.uber.org/zap"
-)
-
-type ParticipantStorage struct {
-	db     *sqlx.DB
-	logger *zap.Logger
-}
-
-func NewParticipantStorage(db *sqlx.DB, logger *zap.Logger) *ParticipantStorage {
-	return &ParticipantStorage{
-		db:     db,
-		logger: logger,
-	}
-}
-
-func (storage *ParticipantStorage) CreateParticipant(ctx context.Context, participant *models.Participant) (int32, error) {
-	query := storage.db.Rebind(`
-INSERT INTO participants
-    (user_id,contest_id,name)
-VALUES (?,?,?)
-RETURNING id
-`)
-
-	rows, err := storage.db.QueryxContext(
-		ctx,
-		query,
-		participant.UserId,
-		participant.ContestId,
-		participant.Name,
-	)
-	if err != nil {
-		return 0, handlePgErr(err)
-	}
-
-	defer rows.Close()
-	var id int32
-	err = rows.StructScan(&id)
-	if err != nil {
-		return 0, handlePgErr(err)
-	}
-
-	return id, nil
-
-}
-
-func (storage *ParticipantStorage) ReadParticipantById(ctx context.Context, id int32) (*models.Participant, error) {
-	var participant models.Participant
-	query := storage.db.Rebind("SELECT * from participants WHERE id=? LIMIT 1")
-	err := storage.db.GetContext(ctx, &participant, query, id)
-	if err != nil {
-		return nil, handlePgErr(err)
-	}
-	return &participant, nil
-}
-
-func (storage *ParticipantStorage) UpdateParticipant(ctx context.Context, id int32, participant models.Participant) error {
-	query := storage.db.Rebind("UPDATE participants SET name=?")
-	_, err := storage.db.ExecContext(ctx, query, participant.Name)
-	if err != nil {
-		return handlePgErr(err)
-	}
-	return nil
-}
-
-func (storage *ParticipantStorage) DeleteParticipant(ctx context.Context, id int32) error {
-	query := storage.db.Rebind("DELETE FROM participants WHERE id=?")
-	_, err := storage.db.ExecContext(ctx, query, id)
-	if err != nil {
-		return handlePgErr(err)
-	}
-
-	return nil
-}

internal/contests/repository/pg_repository.go

@@ -3,7 +3,7 @@ package repository
 import (
 	"context"
 	"errors"
-	"git.sch9.ru/new_gate/models"
+	"git.sch9.ru/new_gate/ms-tester/internal/models"
 	"git.sch9.ru/new_gate/ms-tester/pkg/utils"
 	"github.com/jackc/pgerrcode"
 	"github.com/jackc/pgx/v5/pgconn"
@@ -23,37 +23,32 @@ func NewContestRepository(db *sqlx.DB, logger *zap.Logger) *ContestRepository {
 	}
 }
 
-func (r *ContestRepository) CreateContest(ctx context.Context, contest *models.Contest) (int32, error) {
+const createContestQuery = "INSERT INTO contest (title) VALUES (?) RETURNING id"
-	query := r.db.Rebind(`
-INSERT INTO contests
-    (name)
-VALUES (?)
-RETURNING id
-`)
 
-	rows, err := r.db.QueryxContext(
+func (r *ContestRepository) CreateContest(ctx context.Context, title string) (int32, error) {
-		ctx,
+	query := r.db.Rebind(createContestQuery)
-		query,
+
-		contest.Name,
+	rows, err := r.db.QueryxContext(ctx, query, title)
-	)
 	if err != nil {
 		return 0, handlePgErr(err)
 	}
 
 	defer rows.Close()
 	var id int32
-	err = rows.StructScan(&id)
+	rows.Next()
+	err = rows.Scan(&id)
 	if err != nil {
 		return 0, handlePgErr(err)
 	}
 
 	return id, nil
-
 }
 
+const readContestByIdQuery = "SELECT * from contest WHERE id=? LIMIT 1"
+
 func (r *ContestRepository) ReadContestById(ctx context.Context, id int32) (*models.Contest, error) {
 	var contest models.Contest
-	query := r.db.Rebind("SELECT * from contests WHERE id=? LIMIT 1")
+	query := r.db.Rebind(readContestByIdQuery)
 	err := r.db.GetContext(ctx, &contest, query, id)
 	if err != nil {
 		return nil, handlePgErr(err)
@@ -61,18 +56,10 @@ func (r *ContestRepository) ReadContestById(ctx context.Context, id int32) (*mod
 	return &contest, nil
 }
 
-func (r *ContestRepository) UpdateContest(ctx context.Context, contest *models.Contest) error {
+const deleteContestQuery = "DELETE FROM contest WHERE id=?"
-	query := r.db.Rebind("UPDATE contests SET name=? WHERE id=?")
-	_, err := r.db.ExecContext(ctx, query, contest.Name, contest.Id)
-	if err != nil {
-		return handlePgErr(err)
-	}
-
-	return nil
-}
 
 func (r *ContestRepository) DeleteContest(ctx context.Context, id int32) error {
-	query := r.db.Rebind("DELETE FROM contests WHERE id=?")
+	query := r.db.Rebind(deleteContestQuery)
 	_, err := r.db.ExecContext(ctx, query, id)
 	if err != nil {
 		return handlePgErr(err)

internal/contests/repository/pg_repository_test.go

@@ -0,0 +1,58 @@
+package repository
+
+import (
+	"context"
+	"github.com/DATA-DOG/go-sqlmock"
+	"github.com/jmoiron/sqlx"
+	"github.com/stretchr/testify/require"
+	"go.uber.org/zap"
+	"testing"
+)
+
+func TestContestRepository_CreateContest(t *testing.T) {
+	t.Parallel()
+
+	db, mock, err := sqlmock.New(sqlmock.QueryMatcherOption(sqlmock.QueryMatcherEqual))
+	require.NoError(t, err)
+	defer db.Close()
+
+	sqlxDB := sqlx.NewDb(db, "sqlmock")
+	defer sqlxDB.Close()
+
+	contestRepo := NewContestRepository(sqlxDB, zap.NewNop())
+
+	t.Run("valid contest creation", func(t *testing.T) {
+		title := "Contest title"
+
+		rows := sqlmock.NewRows([]string{"id"}).AddRow(1)
+
+		mock.ExpectQuery(sqlxDB.Rebind(createContestQuery)).WithArgs(title).WillReturnRows(rows)
+
+		id, err := contestRepo.CreateContest(context.Background(), title)
+		require.NoError(t, err)
+		require.Equal(t, int32(1), id)
+	})
+}
+
+func TestContestRepository_DeleteContest(t *testing.T) {
+	t.Parallel()
+
+	db, mock, err := sqlmock.New(sqlmock.QueryMatcherOption(sqlmock.QueryMatcherEqual))
+	require.NoError(t, err)
+	defer db.Close()
+
+	sqlxDB := sqlx.NewDb(db, "sqlmock")
+	defer sqlxDB.Close()
+
+	contestRepo := NewContestRepository(sqlxDB, zap.NewNop())
+
+	t.Run("valid contest deletion", func(t *testing.T) {
+		id := int32(1)
+		rows := sqlmock.NewResult(1, 1)
+
+		mock.ExpectExec(sqlxDB.Rebind(deleteContestQuery)).WithArgs(id).WillReturnResult(rows)
+
+		err = contestRepo.DeleteContest(context.Background(), id)
+		require.NoError(t, err)
+	})
+}

internal/contests/repository/solution.go

@@ -1,114 +0,0 @@
-package repository
-
-import (
-	"context"
-	"git.sch9.ru/new_gate/models"
-	"github.com/jmoiron/sqlx"
-	"go.uber.org/zap"
-)
-
-type SolutionStorage struct {
-	db     *sqlx.DB
-	logger *zap.Logger
-}
-
-func NewSolutionStorage(db *sqlx.DB, logger *zap.Logger) *SolutionStorage {
-	return &SolutionStorage{
-		db:     db,
-		logger: logger,
-	}
-}
-
-// TODO: testing graph
-
-func (storage *SolutionStorage) updateResult(ctx context.Context, participantId int32, taskId int32) error {
-	tx, err := storage.db.Beginx()
-	if err != nil {
-		return handlePgErr(err)
-	}
-	query := tx.Rebind("UPDATE participant_subtask AS ps SET best_score = (SELECT COALESCE(max(score),0) FROM subtaskruns WHERE subtask_id = ps.subtask_id AND solution_id IN (SELECT id FROM solutions WHERE participant_id=ps.participant_id)) WHERE participant_id = 2 AND subtask_id IN (SELECT id FROM subtasks WHERE task_id = 2)")
-	tx.QueryxContext(ctx, query, participantId, taskId)
-	query = tx.Rebind("UPDATE participant_task SET best_score = (select max(best_score) from participant_subtask WHERE participant_id = ? AND subtask_id IN (SELECT id FROM subtask WHERE task_id = ?)) WHERE participant_id = ? AND task_id = ?")
-	tx.QueryxContext(ctx, query, participantId, taskId, participantId, taskId)
-	err = tx.Commit()
-	if err != nil {
-		return handlePgErr(err)
-	}
-
-	return nil
-}
-
-func (storage *SolutionStorage) CreateSolution(ctx context.Context, solution *models.Solution) (int32, error) {
-	query := storage.db.Rebind(`
-INSERT INTO solutions
-    (participant_id,task_id,language_id,solution_hash,result)
-VALUES (?, ?, ?, ?, ?)
-RETURNING id
-`)
-
-	rows, err := storage.db.QueryxContext(
-		ctx,
-		query,
-		solution.ParticipantId,
-		solution.TaskId,
-		solution.LanguageId,
-		"", //FIXME
-		models.NotTested,
-	)
-	//TODO: add testing tree
-	if err != nil {
-		return 0, handlePgErr(err)
-	}
-
-	defer rows.Close()
-	var id int32
-	err = rows.StructScan(&id)
-	if err != nil {
-		return 0, handlePgErr(err)
-	}
-
-	return id, nil
-}
-
-func (storage *SolutionStorage) ReadSolutionById(ctx context.Context, id int32) (*models.Solution, error) {
-	var solution models.Solution
-	query := storage.db.Rebind("SELECT * from solutions WHERE id=? LIMIT 1")
-	err := storage.db.GetContext(ctx, &solution, query, id)
-	if err != nil {
-		return nil, handlePgErr(err)
-	}
-	return &solution, nil
-}
-
-func (storage *SolutionStorage) RejudgeSolution(ctx context.Context, id int32) error {
-	tx, err := storage.db.Beginx()
-	if err != nil {
-		return handlePgErr(err)
-	}
-	query := tx.Rebind("UPDATE solutions SET result = ? WHERE id = ?")
-	tx.QueryxContext(ctx, query, models.NotTested, id) // FIXME
-	query = tx.Rebind("UPDATE subtaskruns SET result = ?,score = 0 WHERE solution_id = ?")
-	tx.QueryxContext(ctx, query, models.NotTested, id) // FIXME
-	query = tx.Rebind("UPDATE testruns SET result = ?, score = 0 WHERE testgrouprun_id IN (SELECT id FROM tesgrouprun WHERE solution_id = ?)")
-	tx.QueryxContext(ctx, query, models.NotTested, id) // FIXME
-	err = tx.Commit()
-	var solution models.Solution
-	query = storage.db.Rebind("SELECT * from solutions WHERE id=? LIMIT 1")
-	err = storage.db.GetContext(ctx, &solution, query, id)
-	if err != nil {
-		return handlePgErr(err)
-	}
-	storage.updateResult(ctx, *solution.ParticipantId, *solution.TaskId) // FIXME
-
-	return nil
-}
-
-func (storage *SolutionStorage) DeleteSolution(ctx context.Context, id int32) error {
-	query := storage.db.Rebind("DELETE FROM solutions WHERE id=?")
-	_, err := storage.db.ExecContext(ctx, query, id)
-	if err != nil {
-		return handlePgErr(err)
-	}
-
-	return nil
-}

internal/contests/repository/task.go

@@ -1,80 +0,0 @@
-package repository
-
-import (
-	"context"
-	"git.sch9.ru/new_gate/models"
-	"github.com/jmoiron/sqlx"
-	"go.uber.org/zap"
-)
-
-type TaskStorage struct {
-	db     *sqlx.DB
-	logger *zap.Logger
-}
-
-func NewTaskStorage(db *sqlx.DB, logger *zap.Logger) *TaskStorage {
-	return &TaskStorage{
-		db:     db,
-		logger: logger,
-	}
-}
-
-func (storage *TaskStorage) CreateTask(ctx context.Context, task *models.Task) (int32, error) {
-	query := storage.db.Rebind(`
-INSERT INTO tasks
-    (contest_id,problem_id,position,position_name)
-VALUES (?, ?, ?, ?)
-RETURNING id
-`)
-
-	rows, err := storage.db.QueryxContext(
-		ctx,
-		query,
-		task.ContestId,
-		task.ProblemId,
-		task.Position,
-		task.PositionName,
-	)
-	if err != nil {
-		return 0, handlePgErr(err)
-	}
-
-	defer rows.Close()
-	var id int32
-	err = rows.StructScan(&id)
-	if err != nil {
-		return 0, handlePgErr(err)
-	}
-
-	return id, nil
-
-}
-
-func (storage *TaskStorage) ReadTaskById(ctx context.Context, id int32) (*models.Task, error) {
-	var task models.Task
-	query := storage.db.Rebind("SELECT * from tasks WHERE id=? LIMIT 1")
-	err := storage.db.GetContext(ctx, &task, query, id)
-	if err != nil {
-		return nil, handlePgErr(err)
-	}
-	return &task, nil
-}
-
-func (storage *TaskStorage) UpdateTask(ctx context.Context, id int32, task models.Task) error {
-	query := storage.db.Rebind("UPDATE tasks SET position=?,position_name=?")
-	_, err := storage.db.ExecContext(ctx, query, task.Position, task.PositionName)
-	if err != nil {
-		return handlePgErr(err)
-	}
-	return nil
-}
-
-func (storage *TaskStorage) DeleteTask(ctx context.Context, id int32) error {
-	query := storage.db.Rebind("DELETE FROM tasks WHERE id=?")
-	_, err := storage.db.ExecContext(ctx, query, id)
-	if err != nil {
-		return handlePgErr(err)
-	}
-
-	return nil
-}

internal/contests/usecase.go

@@ -2,12 +2,11 @@ package contests
 
 import (
 	"context"
-	"git.sch9.ru/new_gate/models"
+	"git.sch9.ru/new_gate/ms-tester/internal/models"
 )
 
 type ContestUseCase interface {
-	CreateContest(ctx context.Context, contest *models.Contest) (int32, error)
+	CreateContest(ctx context.Context, title string) (int32, error)
 	ReadContestById(ctx context.Context, id int32) (*models.Contest, error)
-	UpdateContest(ctx context.Context, contest *models.Contest) error
 	DeleteContest(ctx context.Context, id int32) error
 }

internal/contests/usecase/participants.go

@@ -1,57 +0,0 @@
-package usecase
-
-import (
-	"context"
-	"git.sch9.ru/new_gate/models"
-	"git.sch9.ru/new_gate/ms-tester/pkg/utils"
-)
-
-type ParticipantStorage interface {
-	CreateParticipant(ctx context.Context, participant *models.Participant) (int32, error)
-	ReadParticipantById(ctx context.Context, id int32) (*models.Participant, error)
-	UpdateParticipant(ctx context.Context, participant *models.Participant) error
-	DeleteParticipant(ctx context.Context, id int32) error
-}
-
-type ParticipantService struct {
-	participantStorage ParticipantStorage
-	permissionService  IPermissionService
-}
-
-func NewParticipantService(
-	participantStorage ParticipantStorage,
-	permissionService IPermissionService,
-) *ParticipantService {
-	return &ParticipantService{
-		participantStorage: participantStorage,
-		permissionService:  permissionService,
-	}
-}
-
-func (service *ParticipantService) CreateParticipant(ctx context.Context, participant *models.Participant) (int32, error) {
-	if !service.permissionService.Allowed(ctx, extractUser(ctx), "create") {
-		return 0, utils.ServiceError(nil, utils.ErrNoPermission, "permission denied")
-	}
-	return service.participantStorage.CreateParticipant(ctx, participant)
-}
-
-func (service *ParticipantService) ReadParticipantById(ctx context.Context, id int32) (*models.Participant, error) {
-	if !service.permissionService.Allowed(ctx, extractUser(ctx), "read") {
-		return nil, utils.ServiceError(nil, utils.ErrNoPermission, "permission denied")
-	}
-	return service.participantStorage.ReadParticipantById(ctx, id)
-}
-
-func (service *ParticipantService) UpdateParticipant(ctx context.Context, participant *models.Participant) error {
-	if !service.permissionService.Allowed(ctx, extractUser(ctx), "update") {
-		return utils.ServiceError(nil, utils.ErrNoPermission, "permission denied")
-	}
-	return service.participantStorage.UpdateParticipant(ctx, participant)
-}
-
-func (service *ParticipantService) DeleteParticipant(ctx context.Context, id int32) error {
-	if !service.permissionService.Allowed(ctx, extractUser(ctx), "delete") {
-		return utils.ServiceError(nil, utils.ErrNoPermission, "permission denied")
-	}
-	return service.participantStorage.DeleteParticipant(ctx, id)
-}

internal/contests/usecase/permission.go

@@ -1,39 +0,0 @@
-package usecase
-
-import (
-	"context"
-	"git.sch9.ru/new_gate/models"
-	"github.com/open-policy-agent/opa/rego"
-)
-
-type PermissionService struct {
-	query *rego.PreparedEvalQuery
-}
-
-func NewPermissionService() *PermissionService {
-	query, err := rego.New(
-		rego.Query("allow = data.problem.rbac.allow"),
-		rego.Load([]string{"./opa/all.rego"}, nil),
-	).PrepareForEval(context.TODO())
-
-	if err != nil {
-		panic(err)
-	}
-
-	return &PermissionService{
-		query: &query,
-	}
-}
-
-func (s *PermissionService) Allowed(ctx context.Context, user *models.User, action string) bool {
-	input := map[string]interface{}{
-		"user":   user,
-		"action": action,
-	}
-
-	result, err := s.query.Eval(ctx, rego.EvalInput(input))
-	if err != nil {
-		panic(err)
-	}
-	return result[0].Bindings["allow"].(bool)
-}

internal/contests/usecase/solution.go

@@ -1,57 +0,0 @@
-package usecase
-
-import (
-	"context"
-	"git.sch9.ru/new_gate/models"
-	"git.sch9.ru/new_gate/ms-tester/pkg/utils"
-)
-
-type SolutionStorage interface {
-	CreateSolution(ctx context.Context, solution models.Solution) (int32, error)
-	ReadSolutionById(ctx context.Context, id int32) (models.Solution, error)
-	RejudgeSolution(ctx context.Context, id int32) error
-	DeleteSolution(ctx context.Context, id int32) error
-}
-
-type SolutionService struct {
-	solutionStorage   SolutionStorage
-	permissionService IPermissionService
-}
-
-func NewSolutionService(
-	solutionStorage SolutionStorage,
-	permissionService IPermissionService,
-) *SolutionService {
-	return &SolutionService{
-		solutionStorage:   solutionStorage,
-		permissionService: permissionService,
-	}
-}
-
-func (service *SolutionService) CreateSolution(ctx context.Context, solution models.Solution) (int32, error) {
-	if !service.permissionService.Allowed(ctx, extractUser(ctx), "create") {
-		return 0, utils.ServiceError(nil, utils.ErrNoPermission, "permission denied")
-	}
-	return service.solutionStorage.CreateSolution(ctx, solution)
-}
-
-func (service *SolutionService) ReadSolutionById(ctx context.Context, id int32) (models.Solution, error) {
-	if !service.permissionService.Allowed(ctx, extractUser(ctx), "read") {
-		return models.Solution{}, utils.ServiceError(nil, utils.ErrNoPermission, "permission denied")
-	}
-	return service.solutionStorage.ReadSolutionById(ctx, id)
-}
-
-func (service *SolutionService) RejudgeSolution(ctx context.Context, id int32) error {
-	if !service.permissionService.Allowed(ctx, extractUser(ctx), "update") {
-		return utils.ServiceError(nil, utils.ErrNoPermission, "permission denied")
-	}
-	return service.solutionStorage.RejudgeSolution(ctx, id)
-}
-
-func (service *SolutionService) DeleteSolution(ctx context.Context, id int32) error {
-	if !service.permissionService.Allowed(ctx, extractUser(ctx), "delete") {
-		return utils.ServiceError(nil, utils.ErrNoPermission, "permission denied")
-	}
-	return service.solutionStorage.DeleteSolution(ctx, id)
-}

internal/contests/usecase/task.go

@@ -1,41 +0,0 @@
-package usecase
-
-import (
-	"context"
-	"git.sch9.ru/new_gate/models"
-	"git.sch9.ru/new_gate/ms-tester/pkg/utils"
-)
-
-type TaskStorage interface {
-	CreateTask(ctx context.Context, task models.Task) (int32, error)
-	DeleteTask(ctx context.Context, id int32) error
-}
-
-type TaskService struct {
-	taskStorage       TaskStorage
-	permissionService IPermissionService
-}
-
-func NewTaskService(
-	taskStorage TaskStorage,
-	permissionService IPermissionService,
-) *TaskService {
-	return &TaskService{
-		taskStorage:       taskStorage,
-		permissionService: permissionService,
-	}
-}
-
-func (service *TaskService) CreateTask(ctx context.Context, task models.Task) (int32, error) {
-	if !service.permissionService.Allowed(ctx, extractUser(ctx), "create") {
-		return 0, utils.ServiceError(nil, utils.ErrNoPermission, "permission denied")
-	}
-	return service.taskStorage.CreateTask(ctx, task)
-}
-
-func (service *TaskService) DeleteTask(ctx context.Context, id int32) error {
-	if !service.permissionService.Allowed(ctx, extractUser(ctx), "delete") {
-		return utils.ServiceError(nil, utils.ErrNoPermission, "permission denied")
-	}
-	return service.taskStorage.DeleteTask(ctx, id)
-}

internal/contests/usecase/usecase.go

@@ -4,48 +4,28 @@ import (
 	"context"
 	"git.sch9.ru/new_gate/models"
 	"git.sch9.ru/new_gate/ms-tester/internal/contests"
-	"git.sch9.ru/new_gate/ms-tester/pkg/utils"
 )
 
-type ContestService struct {
+type ContestUseCase struct {
-	contestStorage    contests.ContestRepository
+	contestRepo contests.ContestRepository
-	permissionService IPermissionService
 }
 
-func NewContestService(
+func NewContestUseCase(
-	contestStorage ContestStorage,
+	contestRepo contests.ContestRepository,
-	permissionService IPermissionService,
+) *ContestUseCase {
-) *ContestService {
+	return &ContestUseCase{
-	return &ContestService{
+		contestRepo: contestRepo,
-		contestStorage:    contestStorage,
-		permissionService: permissionService,
 	}
 }
 
-func (service *ContestService) CreateContest(ctx context.Context, contest *models.Contest) (int32, error) {
+func (uc *ContestUseCase) CreateContest(ctx context.Context, title string) (int32, error) {
-	if !service.permissionService.Allowed(ctx, extractUser(ctx), "create") {
+	return uc.contestRepo.CreateContest(ctx, title)
-		return 0, utils.ServiceError(nil, utils.ErrNoPermission, "permission denied")
-	}
-	return service.contestStorage.CreateContest(ctx, contest)
 }
 
-func (service *ContestService) ReadContestById(ctx context.Context, id int32) (*models.Contest, error) {
+func (uc *ContestUseCase) ReadContestById(ctx context.Context, id int32) (*models.Contest, error) {
-	if !service.permissionService.Allowed(ctx, extractUser(ctx), "read") {
+	return uc.contestRepo.ReadContestById(ctx, id)
-		return nil, utils.ServiceError(nil, utils.ErrNoPermission, "permission denied")
-	}
-	return service.contestStorage.ReadContestById(ctx, id)
 }
 
-func (service *ContestService) UpdateContest(ctx context.Context, contest *models.Contest) error {
+func (uc *ContestUseCase) DeleteContest(ctx context.Context, id int32) error {
-	if !service.permissionService.Allowed(ctx, extractUser(ctx), "update") {
+	return uc.contestRepo.DeleteContest(ctx, id)
-		return utils.ServiceError(nil, utils.ErrNoPermission, "permission denied")
-	}
-	return service.contestStorage.UpdateContest(ctx, contest)
-}
-
-func (service *ContestService) DeleteContest(ctx context.Context, id int32) error {
-	if !service.permissionService.Allowed(ctx, extractUser(ctx), "delete") {
-		return utils.ServiceError(nil, utils.ErrNoPermission, "permission denied")
-	}
-	return service.contestStorage.DeleteContest(ctx, id)
 }

internal/languages/delivery.go

@@ -1,4 +0,0 @@
-package languages
-
-type languageHandlers interface {
-}

internal/languages/delivery/grpc/handlers.go

@@ -1 +0,0 @@
-package grpc

internal/languages/pg_repository.go

@@ -1,10 +0,0 @@
-package languages
-
-import (
-	"context"
-	"git.sch9.ru/new_gate/models"
-)
-
-type LanguageRepository interface {
-	ReadLanguageById(ctx context.Context, id int32) (*models.Language, error)
-}

internal/languages/repository/pg_repository.go

@@ -1,28 +0,0 @@
-package repository
-
-import (
-	"context"
-	"git.sch9.ru/new_gate/models"
-	"git.sch9.ru/new_gate/ms-tester/pkg/utils"
-	"github.com/jmoiron/sqlx"
-	"go.uber.org/zap"
-)
-
-type LanguageRepository struct {
-	db     *sqlx.DB
-	logger *zap.Logger
-}
-
-func NewLanguageRepository(db *sqlx.DB, logger *zap.Logger) *LanguageRepository {
-	return &LanguageRepository{
-		db:     db,
-		logger: logger,
-	}
-}
-
-func (r *LanguageRepository) ReadLanguageById(ctx context.Context, id int32) (*models.Language, error) {
-	if id <= int32(len(models.Languages)) {
-		return nil, utils.StorageError(nil, utils.ErrNotFound, "languages not found")
-	}
-	return &models.Languages[id], nil
-}

internal/languages/usecase.go

@@ -1,10 +0,0 @@
-package languages
-
-import (
-	"context"
-	"git.sch9.ru/new_gate/models"
-)
-
-type LanguageUseCase interface {
-	ReadLanguageById(ctx context.Context, id int32) (*models.Language, error)
-}

internal/languages/usecase/usecase.go

@@ -1,25 +0,0 @@
-package usecase
-
-import (
-	"context"
-	"git.sch9.ru/new_gate/models"
-	"git.sch9.ru/new_gate/ms-tester/internal/languages"
-)
-
-type LanguageUseCase struct {
-	languageRepo languages.LanguageRepository
-}
-
-func NewLanguageUseCase(
-	languageRepo languages.LanguageRepository,
-) *LanguageUseCase {
-	return &LanguageUseCase{
-		languageRepo: languageRepo,
-	}
-}
-
-func (uc *LanguageUseCase) ReadLanguageById(ctx context.Context, id int32) (*models.Language, error) {
-	//userId := ctx.Value("user_id").(int32)
-	panic("access control is not implemented yet")
-	return uc.languageRepo.ReadLanguageById(ctx, id)
-}

internal/models/contest.go

@@ -0,0 +1,10 @@
+package models
+
+import "time"
+
+type Contest struct {
+	Id        *int32     `db:"id"`
+	Title     *string    `db:"title"`
+	CreatedAt *time.Time `db:"created_at"`
+	UpdatedAt *time.Time `db:"updated_at"`
+}

internal/models/language.go

@@ -0,0 +1,13 @@
+package models
+
+type Language struct {
+	Name       string
+	CompileCmd []string //source: src;result:executable
+	RunCmd     []string //source: executable
+}
+
+var Languages = [...]Language{
+	{Name: "gcc std=c90",
+		CompileCmd: []string{"gcc", "src", "-std=c90", "-o", "executable"},
+		RunCmd:     []string{"executable"}},
+}

internal/models/participant.go

@@ -0,0 +1,8 @@
+package models
+
+type Participant struct {
+	Id        *int32  `db:"id"`
+	UserId    *int32  `db:"user_id"`
+	ContestId *int32  `db:"contest_id"`
+	Name      *string `db:"name"`
+}

internal/models/problem.go

@@ -0,0 +1,15 @@
+package models
+
+import "time"
+
+type Problem struct {
+	Id              *int32     `db:"id"`
+	Title           *string    `db:"title"`
+	Content         *string    `db:"content"`
+	TimeLimit       *int32     `db:"time_limit"`
+	MemoryLimit     *int32     `db:"memory_limit"`
+	TestingStrategy *int32     `db:"testing_strategy"`
+	TestingOrder    *string    `db:"testing_order"`
+	CreatedAt       *time.Time `db:"created_at"`
+	UpdatedAt       *time.Time `db:"updated_at"`
+}

internal/models/result.go

@@ -0,0 +1,30 @@
+package models
+
+import (
+	"errors"
+)
+
+type Result int32
+
+const (
+	NotTested               Result = 1 // change only with schema change
+	Accepted                Result = 2
+	WrongAnswer             Result = 3
+	PresentationError       Result = 4
+	CompilationError        Result = 5
+	MemoryLimitExceeded     Result = 6
+	TimeLimitExceeded       Result = 7
+	RuntimeError            Result = 8
+	SystemFailDuringTesting Result = 9
+	Testing                 Result = 10
+)
+
+var ErrBadResult = errors.New("bad result")
+
+func (result Result) Valid() error {
+	switch result {
+	case NotTested, Accepted, TimeLimitExceeded, MemoryLimitExceeded, CompilationError, SystemFailDuringTesting:
+		return nil
+	}
+	return ErrBadResult
+}

internal/models/role.go

@@ -0,0 +1,52 @@
+package models
+
+import (
+	"errors"
+)
+
+type Role int32
+
+const (
+	RoleSpectator   Role = 0
+	RoleParticipant Role = 1
+	RoleModerator   Role = 2
+	RoleAdmin       Role = 3
+)
+
+func (role Role) IsAdmin() bool {
+	return role == RoleAdmin
+}
+
+func (role Role) IsModerator() bool {
+	return role == RoleModerator
+}
+
+func (role Role) IsParticipant() bool {
+	return role == RoleParticipant
+}
+
+func (role Role) IsSpectator() bool {
+	return role == RoleSpectator
+}
+
+func (role Role) AtLeast(other Role) bool {
+	return role >= other
+}
+
+func (role Role) AtMost(other Role) bool {
+	return role <= other
+}
+
+var ErrBadRole = errors.New("bad role")
+
+func (role Role) Valid() error {
+	switch role {
+	case RoleSpectator, RoleParticipant, RoleModerator, RoleAdmin:
+		return nil
+	}
+	return ErrBadRole
+}
+
+func (role Role) AsPointer() *Role {
+	return &role
+}

internal/models/solution.go

@@ -0,0 +1,14 @@
+package models
+
+import "time"
+
+type Solution struct {
+	Id            *int32     `db:"id"`
+	ParticipantId *int32     `db:"participant_id"`
+	TaskId        *int32     `db:"task_id"`
+	LanguageId    *int32     `db:"language_id"`
+	SolutionHash  *string    `db:"solution_hash"`
+	Result        *int32     `db:"result"`
+	Score         *int32     `db:"score"`
+	CreatedAt     *time.Time `db:"created_at"`
+}

internal/models/task.go

@@ -0,0 +1,9 @@
+package models
+
+type Task struct {
+	Id           *int32  `db:"id"`
+	ContestId    *int32  `db:"contest_id"`
+	ProblemId    *int32  `db:"problem_id"`
+	Position     *int32  `db:"position"`
+	PositionName *string `db:"position_name"`
+}

internal/models/user.go

@@ -0,0 +1,9 @@
+package models
+
+import "time"
+
+type User struct {
+	UserId    *int32     `json:"user_id" db:"user_id"`
+	Role      *Role      `json:"role" db:"role"`
+	UpdatedAt *time.Time `json:"updated_at" db:"updated_at"`
+}

internal/problems/delivery.go

@@ -7,7 +7,7 @@ import (
 )
 
 type Handlers interface {
-	CreateProblem(server problemv1.ProblemService_CreateProblemServer) error
+	CreateProblem(ctx context.Context, req *problemv1.CreateProblemRequest) (*problemv1.CreateProblemResponse, error)
 	ReadProblem(ctx context.Context, req *problemv1.ReadProblemRequest) (*problemv1.ReadProblemResponse, error)
 	DeleteProblem(ctx context.Context, req *problemv1.DeleteProblemRequest) (*emptypb.Empty, error)
 }

internal/problems/delivery/grpc/handlers.go

@@ -2,15 +2,11 @@ package grpc
 
 import (
 	"context"
-	"git.sch9.ru/new_gate/models"
 	"git.sch9.ru/new_gate/ms-tester/internal/problems"
 	problemv1 "git.sch9.ru/new_gate/ms-tester/pkg/go/gen/proto/problem/v1"
 	"git.sch9.ru/new_gate/ms-tester/pkg/utils"
-	"google.golang.org/grpc/codes"
+	"google.golang.org/grpc"
-	"google.golang.org/grpc/status"
 	"google.golang.org/protobuf/types/known/emptypb"
-	"io"
-	"os"
 )
 
 type problemHandlers struct {
@@ -19,105 +15,18 @@ type problemHandlers struct {
 	problemUC problems.ProblemUseCase
 }
 
-func (h *problemHandlers) CreateProblem(server problemv1.ProblemService_CreateProblemServer) error {
+func NewProblemHandlers(gserver *grpc.Server, problemUC problems.ProblemUseCase) {
-	ctx := server.Context()
+	handlers := &problemHandlers{problemUC: problemUC}
 
-	if err := h.problemUC.CanCreateProblem(ctx); err != nil {
+	problemv1.RegisterProblemServiceServer(gserver, handlers)
-		return err
-	}
-
-	req, err := server.Recv() // receive problem
-	if err != nil {
-		return utils.TransportError(err, utils.ErrBadInput, "can't receive problem")
-	}
-	problem := req.GetProblem()
-	if problem == nil {
-		return utils.TransportError(nil, utils.ErrBadInput, "empty problem")
-	}
-
-	p := &models.Problem{
-		Name:        utils.AsStringP(problem.Name),
-		Description: utils.AsStringP(problem.Description),
-		TimeLimit:   utils.AsInt32P(problem.TimeLimit),
-		MemoryLimit: utils.AsInt32P(problem.MemoryLimit),
-	}
-
-	ch := readChunks(ctx, server)
-
-	err = writeChunks(ctx, ch) // temp stub
-	if err != nil {
-		return err // FIXME
-	}
-
-	id, err := h.problemUC.CreateProblem(ctx, p) // FIXME
-	if err != nil {
-		return err
-	}
-
-	err = server.SendAndClose(&problemv1.CreateProblemResponse{
-		Id: id,
-	})
-	if err != nil {
-		return utils.TransportError(err, utils.ErrBadInput, "can't send response")
-	}
-
-	return nil
 }
 
-func writeChunks(ctx context.Context, chunks <-chan []byte) error {
+func (h *problemHandlers) CreateProblem(ctx context.Context, req *problemv1.CreateProblemRequest) (*problemv1.CreateProblemResponse, error) {
-	// use s3
+	id, err := h.problemUC.CreateProblem(ctx, req.GetTitle())
-	// FIXME: use ctx?
-	f, err := os.Create("out.txt") // FIXME: uuidv4 as initial temp name?
 	if err != nil {
-		return err
+		return nil, err
 	}
-	defer f.Close()
+	return &problemv1.CreateProblemResponse{Id: id}, nil
-
-	var off int64 = 0
-	for chunk := range chunks {
-		_, err = f.WriteAt(chunk, off)
-		if err != nil {
-			return err
-		}
-
-		off += int64(len(chunk))
-	}
-
-	// TODO: rename file to its hash
-	return nil
-}
-
-func readChunks(ctx context.Context, server problemv1.ProblemService_CreateProblemServer) <-chan []byte {
-	ch := make(chan []byte)
-
-	go func() {
-		defer close(ch)
-		for {
-			select {
-			case <-ctx.Done():
-				return // FIXME
-			default:
-				req, err := server.Recv()
-				if err != nil {
-					if err == io.EOF {
-						return // FIXME
-					}
-					if status.Code(err) == codes.Canceled {
-						return // FIXME
-					}
-					continue
-				}
-
-				test := req.GetTest()
-				if test == nil {
-					return // FIXME
-				}
-
-				ch <- test.Chunk
-			}
-		}
-	}()
-	return ch
 }
 
 func (h *problemHandlers) ReadProblem(ctx context.Context, req *problemv1.ReadProblemRequest) (*problemv1.ReadProblemResponse, error) {
@@ -128,38 +37,18 @@ func (h *problemHandlers) ReadProblem(ctx context.Context, req *problemv1.ReadPr
 	return &problemv1.ReadProblemResponse{
 		Problem: &problemv1.ReadProblemResponse_Problem{
 			Id:              *problem.Id,
-			Name:        *problem.Name,
+			Title:           *problem.Title,
-			Description: *problem.Description,
+			Content:         *problem.Content,
 			TimeLimit:       *problem.TimeLimit,
 			MemoryLimit:     *problem.MemoryLimit,
+			TestingStrategy: *problem.TestingStrategy,
+			TestingOrder:    *problem.TestingOrder,
 			CreatedAt:       utils.TimestampP(problem.CreatedAt),
 			UpdatedAt:       utils.TimestampP(problem.UpdatedAt),
 		},
 	}, nil
 }
 
-//func (h *problemHandlers) UpdateProblem(ctx context.Context, req *problemv1.UpdateProblemRequest) (*emptypb.Empty, error) {
-//	problem := req.GetProblem()
-//	if problem == nil {
-//		return nil, status.Errorf(codes.Unknown, "") // FIXME
-//	}
-//	err := s.problemService.UpdateProblem(
-//		ctx,
-//		&models.Problem{
-//			Id:          utils.AsInt32P(problem.Id),
-//			Name:        problem.Name,
-//			Description: problem.Description,
-//			TimeLimit:   problem.TimeLimit,
-//			MemoryLimit: problem.MemoryLimit,
-//		},
-//	)
-//	if err != nil {
-//		return nil, status.Errorf(codes.Unknown, err.Error()) // FIXME
-//	}
-//
-//	return &emptypb.Empty{}, nil
-//}
-
 func (h *problemHandlers) DeleteProblem(ctx context.Context, req *problemv1.DeleteProblemRequest) (*emptypb.Empty, error) {
 	err := h.problemUC.DeleteProblem(ctx, req.GetId())
 	if err != nil {

internal/problems/pg_repository.go

@@ -2,12 +2,11 @@ package problems
 
 import (
 	"context"
-	"git.sch9.ru/new_gate/models"
+	"git.sch9.ru/new_gate/ms-tester/internal/models"
 )
 
 type ProblemPostgresRepository interface {
-	CreateProblem(ctx context.Context, problem *models.Problem, testGroupData []models.TestGroupData) (int32, error)
+	CreateProblem(ctx context.Context, title string) (int32, error)
 	ReadProblemById(ctx context.Context, id int32) (*models.Problem, error)
-	UpdateProblem(ctx context.Context, problem *models.Problem) error
 	DeleteProblem(ctx context.Context, id int32) error
 }

internal/problems/repository/pg_repository.go

@@ -23,59 +23,19 @@ func NewProblemRepository(db *sqlx.DB, logger *zap.Logger) *ProblemRepository {
 	}
 }
 
-func (storage *ProblemRepository) CreateProblem(ctx context.Context, problem *models.Problem, testGroupData []models.TestGroupData) (int32, error) {
+const createProblemQuery = "INSERT INTO problems (title) VALUES (?) RETURNING id"
-	tx, err := storage.db.Beginx()
+
+func (r *ProblemRepository) CreateProblem(ctx context.Context, title string) (int32, error) {
+	query := r.db.Rebind(createProblemQuery)
+	rows, err := r.db.QueryxContext(ctx, query, title)
 	if err != nil {
 		return 0, handlePgErr(err)
 	}
-	query := tx.Rebind(`
-INSERT INTO problems
-    (name,description,time_limit,memory_limit)
-VALUES (?, ?, ?, ?)
-RETURNING id
-`)
-	rows, err := tx.QueryxContext(
-		ctx,
-		query,
-		problem.Name,
-		problem.Description,
-		problem.TimeLimit,
-		problem.MemoryLimit,
-	)
-	if err != nil {
-		return 0, handlePgErr(errors.Join(err, tx.Rollback()))
-	}
-	for _, tgd := range testGroupData {
-		query := tx.Rebind(`
-    INSERT INTO testgroups
-        (problem_id,testing_strategy)
-    VALUES ((select last_value from problems_id_seq),?)
-    RETURNING id
-    `)
-		rows, err = tx.QueryxContext(ctx, query, tgd.Ts)
-		if err != nil {
-			return 0, handlePgErr(errors.Join(err, tx.Rollback()))
-		}
-		var i int32 = 0
-		for ; i < tgd.TestAmount; i++ {
-			query := tx.Rebind(`
-        INSERT INTO tests
-            (testgroup_id)
-        VALUES ((select last_value from testgroups_id_seq))
-        RETURNING id
-        `)
-			rows, err = tx.QueryxContext(ctx, query, tgd.Ts)
-			if err != nil {
-				return 0, handlePgErr(errors.Join(err, tx.Rollback()))
-			}
-		}
-	}
-	err = tx.Commit()
-	//add test saving
 
 	defer rows.Close()
 	var id int32
-	err = rows.StructScan(&id)
+	rows.Next()
+	err = rows.Scan(&id)
 	if err != nil {
 		return 0, handlePgErr(err)
 	}
@@ -83,28 +43,23 @@ RETURNING id
 	return id, nil
 }
 
-func (storage *ProblemRepository) ReadProblemById(ctx context.Context, id int32) (*models.Problem, error) {
+const readProblemQuery = "SELECT * from problems WHERE id=? LIMIT 1"
+
+func (r *ProblemRepository) ReadProblemById(ctx context.Context, id int32) (*models.Problem, error) {
 	var problem models.Problem
-	query := storage.db.Rebind("SELECT * from problems WHERE id=? LIMIT 1")
+	query := r.db.Rebind(readProblemQuery)
-	err := storage.db.GetContext(ctx, &problem, query, id)
+	err := r.db.GetContext(ctx, &problem, query, id)
 	if err != nil {
 		return nil, handlePgErr(err)
 	}
 	return &problem, nil
 }
 
-func (storage *ProblemRepository) UpdateProblem(ctx context.Context, problem *models.Problem) error {
+const deleteProblemQuery = "DELETE FROM problems WHERE id=?"
-	query := storage.db.Rebind("UPDATE problems SET name=?,description=?,time_limit=?,memory_limit=? WHERE id=?")
-	_, err := storage.db.ExecContext(ctx, query, problem.Name, problem.Description, problem.TimeLimit, problem.MemoryLimit, problem.Id)
-	if err != nil {
-		return handlePgErr(err)
-	}
-	return nil
-}
 
-func (storage *ProblemRepository) DeleteProblem(ctx context.Context, id int32) error {
+func (r *ProblemRepository) DeleteProblem(ctx context.Context, id int32) error {
-	query := storage.db.Rebind("DELETE FROM problems WHERE id=?")
+	query := r.db.Rebind(deleteProblemQuery)
-	_, err := storage.db.ExecContext(ctx, query, id)
+	_, err := r.db.ExecContext(ctx, query, id)
 	if err != nil {
 		return handlePgErr(err)
 	}

internal/problems/repository/pg_repository_test.go

@@ -0,0 +1,58 @@
+package repository
+
+import (
+	"context"
+	"github.com/DATA-DOG/go-sqlmock"
+	"github.com/jmoiron/sqlx"
+	"github.com/stretchr/testify/require"
+	"go.uber.org/zap"
+	"testing"
+)
+
+func TestProblemRepository_CreateProblem(t *testing.T) {
+	t.Parallel()
+
+	db, mock, err := sqlmock.New(sqlmock.QueryMatcherOption(sqlmock.QueryMatcherEqual))
+	require.NoError(t, err)
+	defer db.Close()
+
+	sqlxDB := sqlx.NewDb(db, "sqlmock")
+	defer sqlxDB.Close()
+
+	problemRepo := NewProblemRepository(sqlxDB, zap.NewNop())
+
+	t.Run("valid problem creation", func(t *testing.T) {
+		title := "Problem title"
+
+		rows := sqlmock.NewRows([]string{"id"}).AddRow(1)
+
+		mock.ExpectQuery(sqlxDB.Rebind(createProblemQuery)).WithArgs(title).WillReturnRows(rows)
+
+		id, err := problemRepo.CreateProblem(context.Background(), title)
+		require.NoError(t, err)
+		require.Equal(t, int32(1), id)
+	})
+}
+
+func TestProblemRepository_DeleteProblem(t *testing.T) {
+	t.Parallel()
+
+	db, mock, err := sqlmock.New(sqlmock.QueryMatcherOption(sqlmock.QueryMatcherEqual))
+	require.NoError(t, err)
+	defer db.Close()
+
+	sqlxDB := sqlx.NewDb(db, "sqlmock")
+	defer sqlxDB.Close()
+
+	problemRepo := NewProblemRepository(sqlxDB, zap.NewNop())
+
+	t.Run("valid problem deletion", func(t *testing.T) {
+		id := int32(1)
+		rows := sqlmock.NewResult(1, 1)
+
+		mock.ExpectExec(sqlxDB.Rebind(deleteProblemQuery)).WithArgs(id).WillReturnResult(rows)
+
+		err = problemRepo.DeleteProblem(context.Background(), id)
+		require.NoError(t, err)
+	})
+}

internal/problems/usecase.go

@@ -2,16 +2,17 @@ package problems
 
 import (
 	"context"
-	"git.sch9.ru/new_gate/models"
+	"git.sch9.ru/new_gate/ms-tester/internal/models"
 )
 
-type ProblemUseCase interface {
+type ProblemPolicyAgent interface {
 	CanCreateProblem(ctx context.Context) error
-	CanReadProblemById(ctx context.Context) error
+	CanReadProblem(ctx context.Context) error
-	CanUpdateProblem(ctx context.Context) error
 	CanDeleteProblem(ctx context.Context) error
-	CreateProblem(ctx context.Context, problem *models.Problem) (int32, error)
+}
+
+type ProblemUseCase interface {
+	CreateProblem(ctx context.Context, title string) (int32, error)
 	ReadProblemById(ctx context.Context, id int32) (*models.Problem, error)
-	UpdateProblem(ctx context.Context, problem *models.Problem) error
 	DeleteProblem(ctx context.Context, id int32) error
 }

internal/problems/usecase/all.rego

@@ -1,44 +0,0 @@
-package problem.rbac
-
-import rego.v1
-
-spectator := 0
-participant := 1
-moderator := 2
-admin := 3
-
-permissions := {
-	"read": is_spectator,
-	"participate": is_participant,
-	"update": is_moderator,
-	"create": is_moderator,
-	"delete": is_moderator,
-}
-
-default allow := false
-
-allow if is_admin
-
-allow if {
-	permissions[input.action]
-}
-
-default is_admin := false
-is_admin if {
-	input.user.role == admin
-}
-
-default is_moderator := false
-is_moderator if {
-	input.user.role >= moderator
-}
-
-default is_participant := false
-is_participant if {
-	input.user.role >= participant
-}
-
-default is_spectator := true
-is_spectator if {
-	input.user.role >= spectator
-}

internal/problems/usecase/policy_agent.go

@@ -0,0 +1,67 @@
+package usecase
+
+import (
+	"context"
+	"git.sch9.ru/new_gate/models"
+	"github.com/open-policy-agent/opa/rego"
+)
+
+type PermissionService struct {
+	query *rego.PreparedEvalQuery
+}
+
+func NewPermissionService() *PermissionService {
+	query, err := rego.New(
+		rego.Query("allow = data.problem.rbac.allow"),
+		rego.Load([]string{"./opa/problem.rego"}, nil),
+	).PrepareForEval(context.TODO())
+
+	if err != nil {
+		panic(err)
+	}
+
+	return &PermissionService{
+		query: &query,
+	}
+}
+
+func (s *PermissionService) Allowed(ctx context.Context, user *models.User, action string) bool {
+	input := map[string]interface{}{
+		"user":   user,
+		"action": action,
+	}
+
+	result, err := s.query.Eval(ctx, rego.EvalInput(input))
+	if err != nil {
+		panic(err)
+	}
+	return result[0].Bindings["allow"].(bool)
+}
+
+//func (service *ProblemUseCase) CanCreateProblem(ctx context.Context) error {
+//	if !service.permissionService.Allowed(ctx, extractUser(ctx), "create") {
+//		return utils.ServiceError(nil, utils.ErrNoPermission, "permission denied")
+//	}
+//	return nil
+//}
+//
+//func (service *ProblemUseCase) CanReadProblemById(ctx context.Context) error {
+//	if !service.permissionService.Allowed(ctx, extractUser(ctx), "read") {
+//		return utils.ServiceError(nil, utils.ErrNoPermission, "permission denied")
+//	}
+//	return nil
+//}
+//
+//func (service *ProblemUseCase) CanUpdateProblem(ctx context.Context) error {
+//	if !service.permissionService.Allowed(ctx, extractUser(ctx), "update") {
+//		return utils.ServiceError(nil, utils.ErrNoPermission, "permission denied")
+//	}
+//	return nil
+//}
+//
+//func (service *ProblemUseCase) CanDeleteProblem(ctx context.Context) error {
+//	if !service.permissionService.Allowed(ctx, extractUser(ctx), "delete") {
+//		return utils.ServiceError(nil, utils.ErrNoPermission, "permission denied")
+//	}
+//	return nil
+//}

internal/problems/usecase/usecase.go

@@ -2,100 +2,34 @@ package usecase
 
 import (
 	"context"
-	"git.sch9.ru/new_gate/models"
+	"git.sch9.ru/new_gate/ms-tester/internal/models"
+	"git.sch9.ru/new_gate/ms-tester/internal/problems"
 	"git.sch9.ru/new_gate/ms-tester/pkg/external/pandoc"
-	"git.sch9.ru/new_gate/ms-tester/pkg/utils"
 )
 
-type ProblemStorage interface {
-	CreateProblem(ctx context.Context, problem *models.Problem, testGroupData []models.TestGroupData) (int32, error)
-	ReadProblemById(ctx context.Context, id int32) (*models.Problem, error)
-	UpdateProblem(ctx context.Context, problem *models.Problem) error
-	DeleteProblem(ctx context.Context, id int32) error
-}
-
-type IPermissionService interface {
-	Allowed(ctx context.Context, user *models.User, action string) bool
-}
-
 type ProblemUseCase struct {
-	problemStorage    ProblemStorage
+	problemRepo  problems.ProblemPostgresRepository
 	pandocClient pandoc.PandocClient
-	permissionService IPermissionService
 }
 
 func NewProblemUseCase(
-	problemStorage ProblemStorage,
+	problemRepo problems.ProblemPostgresRepository,
 	pandocClient pandoc.PandocClient,
-	permissionService IPermissionService,
 ) *ProblemUseCase {
 	return &ProblemUseCase{
-		problemStorage:    problemStorage,
+		problemRepo:  problemRepo,
 		pandocClient: pandocClient,
-		permissionService: permissionService,
 	}
 }
 
-func extractUser(ctx context.Context) *models.User {
+func (u *ProblemUseCase) CreateProblem(ctx context.Context, title string) (int32, error) {
-	return ctx.Value("user").(*models.User)
+	return u.problemRepo.CreateProblem(ctx, title)
 }
 
-func (service *ProblemUseCase) CanCreateProblem(ctx context.Context) error {
+func (u *ProblemUseCase) ReadProblemById(ctx context.Context, id int32) (*models.Problem, error) {
-	if !service.permissionService.Allowed(ctx, extractUser(ctx), "create") {
+	return u.problemRepo.ReadProblemById(ctx, id)
-		return utils.ServiceError(nil, utils.ErrNoPermission, "permission denied")
-	}
-	return nil
 }
 
-func (service *ProblemUseCase) CanReadProblemById(ctx context.Context) error {
+func (u *ProblemUseCase) DeleteProblem(ctx context.Context, id int32) error {
-	if !service.permissionService.Allowed(ctx, extractUser(ctx), "read") {
+	return u.problemRepo.DeleteProblem(ctx, id)
-		return utils.ServiceError(nil, utils.ErrNoPermission, "permission denied")
-	}
-	return nil
-}
-
-func (service *ProblemUseCase) CanUpdateProblem(ctx context.Context) error {
-	if !service.permissionService.Allowed(ctx, extractUser(ctx), "update") {
-		return utils.ServiceError(nil, utils.ErrNoPermission, "permission denied")
-	}
-	return nil
-}
-
-func (service *ProblemUseCase) CanDeleteProblem(ctx context.Context) error {
-	if !service.permissionService.Allowed(ctx, extractUser(ctx), "delete") {
-		return utils.ServiceError(nil, utils.ErrNoPermission, "permission denied")
-	}
-	return nil
-}
-
-func (service *ProblemUseCase) CreateProblem(ctx context.Context, problem *models.Problem) (int32, error) {
-	if err := service.CanCreateProblem(ctx); err != nil {
-		return 0, err
-	}
-	_, err := service.pandocClient.ConvertLatexToHtml5(ctx, *problem.Description)
-	if err != nil {
-		return 0, err
-	}
-	return service.problemStorage.CreateProblem(ctx, problem, nil)
-}
-
-func (service *ProblemUseCase) ReadProblemById(ctx context.Context, id int32) (*models.Problem, error) {
-	if err := service.CanReadProblemById(ctx); err != nil {
-		return nil, err
-	}
-	return service.problemStorage.ReadProblemById(ctx, id)
-}
-
-func (service *ProblemUseCase) UpdateProblem(ctx context.Context, problem *models.Problem) error {
-	if err := service.CanUpdateProblem(ctx); err != nil {
-		return err
-	}
-	return service.problemStorage.UpdateProblem(ctx, problem)
-}
-
-func (service *ProblemUseCase) DeleteProblem(ctx context.Context, id int32) error {
-	if err := service.CanDeleteProblem(ctx); err != nil {
-		return err
-	}
-	return service.problemStorage.DeleteProblem(ctx, id)
 }

internal/tester/usecase/permission.go

@@ -13,7 +13,7 @@ type PermissionService struct {
 func NewPermissionService() *PermissionService {
 	query, err := rego.New(
 		rego.Query("allow = data.problem.rbac.allow"),
-		rego.Load([]string{"./opa/all.rego"}, nil),
+		rego.Load([]string{"./opa/problem.rego"}, nil),
 	).PrepareForEval(context.TODO())
 
 	if err != nil {

migrations/20240727123308_initial.sql

@@ -1,264 +1,125 @@
 -- +goose Up
 -- +goose StatementBegin
---CREATE TABLE IF NOT EXISTS languages
---(
---    id                 serial               NOT NULL,
---    name               VARCHAR(60)          NOT NULL,
---    build_file_hash    CHAR(128)            NULL,
---    execute_file_hash  CHAR(128)            NULL,
---    created_at         TIMESTAMPTZ          NOT NULL DEFAULT NOW(),
---    updated_at         TIMESTAMPTZ          NOT NULL DEFAULT NOW(),
---
---    PRIMARY KEY (id)
---);
-
-
-
-
 CREATE TABLE IF NOT EXISTS problems
 (
     id               serial         NOT NULL,
-    name         VARCHAR(300) NOT NULL,
+    title            varchar(255)   NOT NULL,
-    description  TEXT         NOT NULL,
+    content          varchar(65536) NOT NULL DEFAULT '',
-    time_limit   INT          NOT NULL,
+    time_limit       integer        NOT NULL DEFAULT 1000,
-    memory_limit INT          NOT NULL,
+    memory_limit     integer        NOT NULL DEFAULT 65536,
-    created_at   TIMESTAMPTZ  NOT NULL DEFAULT NOW(),
+    testing_strategy integer        NOT NULL DEFAULT 1,
-    updated_at   TIMESTAMPTZ  NOT NULL DEFAULT NOW(),
+    testing_order    varchar(1024)  NOT NULL DEFAULT '',
-
+    created_at       timestamptz    NOT NULL DEFAULT now(),
-    PRIMARY KEY(id)
+    updated_at       timestamptz    NOT NULL DEFAULT now(),
+    PRIMARY KEY (id),
+    CHECK (length(title) != 0),
+    CHECK (memory_limit > 0),
+    CHECK (time_limit > 0),
+    CHECK (testing_strategy > 0)
 );
 
-CREATE INDEX ON problems USING BTREE (id);
+CREATE TRIGGER on_problems_update
-
+    BEFORE UPDATE
-
+    ON problems
-
+    FOR EACH ROW
+EXECUTE PROCEDURE updated_at_update();
 
 CREATE TABLE IF NOT EXISTS contests
 (
     id         serial       NOT NULL,
-    name        VARCHAR(300) NOT NULL,
+    title      varchar(255) NOT NULL,
-    created_at  TIMESTAMPTZ  NOT NULL DEFAULT NOW(),
+    created_at timestamptz  NOT NULL DEFAULT now(),
-    updated_at  TIMESTAMPTZ  NOT NULL DEFAULT NOW(),
+    updated_at timestamptz  NOT NULL DEFAULT now(),
-
+    PRIMARY KEY (id),
-    PRIMARY KEY(id)
+    CHECK (length(title) != 0)
 );
 
-CREATE INDEX ON contests USING BTREE (id);
+CREATE TRIGGER on_contests_update
-
+    BEFORE UPDATE
-
+    ON contests
-
+    FOR EACH ROW
+EXECUTE PROCEDURE updated_at_update();
 
 CREATE TABLE IF NOT EXISTS tasks
-(
-    id            SERIAL       NOT NULL,
-    contest_id    INT          REFERENCES contests ON DELETE CASCADE,
-    problem_id    INT          REFERENCES problems ON DELETE CASCADE,
-    position      INT          NOT NULL,
-    position_name VARCHAR(10)  NOT NULL,     -- problem name like: A,B,A1,etc
-    UNIQUE (contest_id,problem_id),
-    UNIQUE (contest_id,position),
-    UNIQUE (contest_id,position_name),
-    PRIMARY KEY (id)
-);
-
-CREATE INDEX ON tasks USING BTREE (id);
-CREATE INDEX ON tasks USING BTREE (contest_id);
-CREATE INDEX ON tasks USING BTREE (problem_id);
-
-
-
-
-CREATE TABLE IF NOT EXISTS testgroups
 (
     id         serial      NOT NULL,
-    problem_id       INT             REFERENCES problems ON DELETE CASCADE,
+    problem_id integer     NOT NULL REFERENCES problems (id),
-    testing_strategy INT             NOT NULL,
+    contest_id integer     NOT NULL REFERENCES contests (id),
-
+    position   integer     NOT NULL,
-    PRIMARY KEY (id)
+    prefix     varchar(10) NOT NULL,
+    created_at timestamptz NOT NULL DEFAULT now(),
+    updated_at timestamptz NOT NULL DEFAULT now(),
+    PRIMARY KEY (id),
+    UNIQUE (problem_id, contest_id),
+    CHECK (position >= 0)
 );
 
-CREATE INDEX ON testgroups USING BTREE (id);
+CREATE TRIGGER on_tasks_update
-CREATE INDEX ON testgroups USING BTREE (problem_id);
+    BEFORE UPDATE
-
+    ON tasks
-
+    FOR EACH ROW
-
+EXECUTE PROCEDURE updated_at_update();
-
-CREATE TABLE IF NOT EXISTS subtasks
-(
-    id            SERIAL       NOT NULL,
-    contest_id    INT          REFERENCES contests ON DELETE CASCADE,
-    testgroup_id  INT          REFERENCES testgroups ON DELETE CASCADE,
-    task_id       INT          REFERENCES tasks ON DELETE CASCADE,
-    UNIQUE (contest_id,testgroup_id),
-    PRIMARY KEY (id)
-);
-
-CREATE INDEX ON subtasks USING BTREE (id);
-CREATE INDEX ON subtasks USING BTREE (contest_id);
-CREATE INDEX ON subtasks USING BTREE (testgroup_id);
-
-
-
 
 CREATE TABLE IF NOT EXISTS participants
 (
     id         serial       NOT NULL,
-    user_id       INT           NOT NULL,
+    user_id    integer      NOT NULL,
-    contest_id    INT           REFERENCES contests ON DELETE CASCADE,
+    contest_id integer      NOT NULL REFERENCES contests (id),
-    name          varchar(200)  NOT NULL,
+    name       varchar(255) NOT NULL,
-
+    created_at timestamptz  NOT NULL DEFAULT now(),
-    UNIQUE (user_id,contest_id),
+    updated_at timestamptz  NOT NULL DEFAULT now(),
-    PRIMARY KEY (id)
+    PRIMARY KEY (id),
+    UNIQUE (user_id, contest_id),
+    CHECK (length(name) != 0)
 );
 
-CREATE INDEX ON participants USING BTREE (id);
+CREATE TRIGGER on_participants_update
-CREATE INDEX ON participants USING BTREE (user_id);
+    BEFORE UPDATE
-CREATE INDEX ON participants USING BTREE (contest_id);
+    ON participants
-
+    FOR EACH ROW
-
+EXECUTE PROCEDURE updated_at_update();
-
 
 CREATE TABLE IF NOT EXISTS solutions
 (
     id             serial           NOT NULL,
-    participant_id INT                  REFERENCES participants ON DELETE CASCADE,
+    task_id        integer          NOT NULL REFERENCES tasks (id),
-    task_id        INT                  REFERENCES problems ON DELETE CASCADE,
+    participant_id integer          NOT NULL REFERENCES participants (id),
---     language_id    INT                  NOT NULL REFERENCES languages ON DELETE CASCADE,
+    solution       varchar(1048576) NOT NULL,
-    solution_hash  CHAR(128)            NOT NULL,
+    state          integer          NOT NULL DEFAULT 1,
-    result         INT                  NOT NULL,
+    results        varchar(1000)    NOT NULL,
-    score          INT                  NOT NULL,
+    score          integer          NOT NULL,
-    created_at     TIMESTAMPTZ          NOT NULL DEFAULT NOW(),
+    penalty        integer          NOT NULL,
-
+    total_score    integer          NOT NULL,
+    language       integer          NOT NULL,
+    updated_at     timestamptz      NOT NULL DEFAULT now(),
+    created_at     timestamptz      NOT NULL DEFAULT now(),
     PRIMARY KEY (id)
 );
 
-CREATE INDEX ON solutions USING BTREE (id);
+CREATE TRIGGER on_solutions_update
--- CREATE INDEX ON solutions USING BTREE (id,participant_id,task_id,language_id); FIXME
+    BEFORE UPDATE
+    ON solutions
+    FOR EACH ROW
+EXECUTE PROCEDURE updated_at_update();
 
-
+CREATE TABLE IF NOT EXISTS best_solutions
-
-
-CREATE TABLE IF NOT EXISTS tests
 (
     id               serial      NOT NULL,
-    --problem_id  INT                  NOT NULL,
+    participant_id   integer     NOT NULL REFERENCES participants (id),
-    testgroup_id INT                  REFERENCES testgroups ON DELETE CASCADE,
+    task_id          integer     NOT NULL REFERENCES tasks (id),
-
+    solution_id      integer     NOT NULL REFERENCES solutions (id),
-    PRIMARY KEY (id)
+    best_total_score integer     NOT NULL,
+    created_at       timestamptz NOT NULL DEFAULT now(),
+    updated_at       timestamptz NOT NULL DEFAULT now(),
+    PRIMARY KEY (id),
+    UNIQUE (participant_id, task_id)
 );
 
-CREATE INDEX ON tests USING BTREE (id);
+CREATE TRIGGER on_best_solutions_update
-CREATE INDEX ON tests USING BTREE (testgroup_id);
+    BEFORE UPDATE
-
+    ON best_solutions
-
+    FOR EACH ROW
-
+EXECUTE PROCEDURE updated_at_update();
-
-CREATE TABLE IF NOT EXISTS subtaskruns
-(
-    id            serial       NOT NULL,
-    subtask_id    INT          REFERENCES subtasks ON DELETE CASCADE,
-    solution_id   INT          REFERENCES solutions ON DELETE CASCADE,
-    result        INT          NOT NULL,
-    score         INT          NOT NULL,
-
-    UNIQUE (subtask_id,solution_id),
-    PRIMARY KEY (id)
-);
-
-CREATE INDEX ON subtaskruns USING BTREE (id);
-CREATE INDEX ON subtaskruns USING BTREE (result);
-CREATE INDEX ON subtaskruns USING BTREE (solution_id);
-
-
-
-
-CREATE TABLE IF NOT EXISTS testruns
-(
-    id               serial       NOT NULL,
-    test_id          INT          REFERENCES tests ON DELETE CASCADE,
-    --solution_id    INT          REFERENCES solutions ON DELETE CASCADE,
-    subtaskrun_id    INT          REFERENCES subtaskruns ON DELETE CASCADE,
-    result           INT          NOT NULL,
-
-    PRIMARY KEY (id)
-);
-
-CREATE INDEX ON testruns USING BTREE (id);
-CREATE INDEX ON testruns USING BTREE (result);
-CREATE INDEX ON testruns USING BTREE (subtaskrun_id);
-
-
-
-
-CREATE TABLE IF NOT EXISTS participant_subtask
-(
-    participant_id INT     REFERENCES participants ON DELETE CASCADE,
-    subtask_id     INT     REFERENCES subtasks ON DELETE CASCADE,
-    --result         INT     NOT NULL,
-    best_score     INT     NOT NULL
-);
-
-
-
-
-CREATE TABLE IF NOT EXISTS participant_task
-(
-    participant_id INT     REFERENCES participants ON DELETE CASCADE,
-    task_id        INT     REFERENCES tasks ON DELETE CASCADE,
-    --result         INT     NOT NULL,
-    best_score     INT     NOT NULL,
-    penalty        INT     NOT NULL
-);
-
-
-CREATE FUNCTION on_new_participant() RETURNS TRIGGER AS 
-$$ BEGIN
-    --RAISE NOTICE 'NEW.ID:%, NEW.contest_id:%', NEW.id,NEW.contest_id;
-    INSERT INTO participant_task (participant_id,task_id,best_score,penalty) SELECT NEW.id,id,0,0 FROM tasks WHERE contest_id=NEW.contest_id;
-    INSERT INTO participant_subtask (participant_id,subtask_id,best_score) SELECT NEW.id,id,0 FROM subtasks WHERE contest_id=NEW.contest_id;
-    RETURN NEW;
-END; $$ LANGUAGE plpgsql;
-
-CREATE TRIGGER new_participant_trg AFTER INSERT ON participants FOR EACH ROW EXECUTE FUNCTION on_new_participant();
-
-CREATE FUNCTION on_new_task() RETURNS TRIGGER AS 
-$$ BEGIN
-    INSERT INTO participant_task (participant_id,task_id,best_score,penalty) SELECT id,NEW.id,0,0 FROM participants WHERE contest_id=NEW.contest_id;
-    INSERT INTO subtasks(contest_id,testgroup_id,task_id) SELECT NEW.contest_id,id,NEW.id FROM testgroups WHERE problem_id = NEW.problem_id;
-    RETURN NEW;
-END; $$ LANGUAGE plpgsql;
-
-CREATE TRIGGER new_task_trg AFTER INSERT ON tasks FOR EACH ROW EXECUTE FUNCTION on_new_task();
-
-CREATE FUNCTION on_new_subtask() RETURNS TRIGGER AS 
-$$ BEGIN
-    INSERT INTO participant_subtask (participant_id,subtask_id,best_score) SELECT id,NEW.id,0 FROM participants WHERE contest_id=NEW.contest_id;
-    RETURN NEW;
-END; $$ LANGUAGE plpgsql;
-
-CREATE TRIGGER new_subtask_trg AFTER INSERT ON subtasks FOR EACH ROW EXECUTE FUNCTION on_new_subtask();
-
-
-CREATE FUNCTION on_new_solution() RETURNS TRIGGER
-LANGUAGE plpgsql AS $$
-BEGIN
-    INSERT INTO subtaskruns (subtask_id,solution_id,result,score) (SELECT id,NEW.id,0,0 FROM subtasks WHERE task_id = NEW.task_id);
-    --INSERT INTO testruns (test_id,subtaskrun_id,result) (SELECT id,str.id,0 FROM tests WHERE testgroup_id IN (SELECT testgroup_id FROM subtasks WHERE id IN (SELECT subtask_id FROM subtaskruns AS str WHERE solution_id=NEW.id)));
-    RETURN NEW;
-END;
-$$;
-
-CREATE TRIGGER on_new_solution_trg AFTER INSERT ON solutions FOR EACH ROW EXECUTE FUNCTION on_new_solution();
-
-CREATE FUNCTION on_new_subtaskrun() RETURNS TRIGGER
-LANGUAGE plpgsql AS $$
-BEGIN
-    INSERT INTO testruns (test_id,subtaskrun_id,result) (SELECT id,NEW.id,0 FROM tests WHERE testgroup_id IN (SELECT testgroup_id FROM subtasks WHERE id=NEW.subtask_id));
-    RETURN NEW;
-END;
-$$;
-
-CREATE TRIGGER on_new_subtaskrun_trg AFTER INSERT ON subtaskruns FOR EACH ROW EXECUTE FUNCTION on_new_subtaskrun();
 
 CREATE FUNCTION updated_at_update() RETURNS TRIGGER
     LANGUAGE plpgsql AS
@@ -269,31 +130,21 @@ BEGIN
 END;
 $$;
 
-
---CREATE TRIGGER languages_upd_trg BEFORE UPDATE ON languages FOR EACH ROW EXECUTE FUNCTION updated_at_update();
-CREATE TRIGGER problems_upd_trg BEFORE UPDATE ON problems FOR EACH ROW EXECUTE FUNCTION updated_at_update();
-CREATE TRIGGER contests_upd_trg BEFORE UPDATE ON contests FOR EACH ROW EXECUTE FUNCTION updated_at_update();
 -- +goose StatementEnd
 
 -- +goose Down
 -- +goose StatementBegin
-DROP FUNCTION IF EXISTS updated_at_update CASCADE;
+DROP TRIGGER IF EXISTS on_problems_update ON problems;
-DROP FUNCTION IF EXISTS on_new_participant CASCADE;
+DROP TABLE IF EXISTS problems;
-DROP FUNCTION IF EXISTS on_new_task CASCADE;
+DROP TRIGGER IF EXISTS on_contests_update ON contests;
-DROP FUNCTION IF EXISTS on_new_subtask CASCADE;
+DROP TABLE IF EXISTS contests;
-DROP FUNCTION IF EXISTS on_new_solution CASCADE;
+DROP TRIGGER IF EXISTS on_tasks_update ON tasks;
-DROP FUNCTION IF EXISTS on_new_subtaskrun CASCADE;
+DROP TABLE IF EXISTS tasks;
-DROP TABLE IF EXISTS tests CASCADE;
+DROP TRIGGER IF EXISTS on_participants_update ON participants;
-DROP TABLE IF EXISTS solutions CASCADE;
+DROP TABLE IF EXISTS participants;
---DROP TABLE IF EXISTS languages CASCADE;
+DROP TRIGGER IF EXISTS on_solutions_update ON solutions;
-DROP TABLE IF EXISTS testgroups CASCADE;
+DROP TABLE IF EXISTS solutions;
-DROP TABLE IF EXISTS testruns CASCADE;
+DROP TRIGGER IF EXISTS on_best_solutions_update ON best_solutions;
-DROP TABLE IF EXISTS subtaskruns CASCADE;
+DROP TABLE IF EXISTS best_solutions;
-DROP TABLE IF EXISTS problems CASCADE;
+DROP FUNCTION updated_at_update();
-DROP TABLE IF EXISTS contests CASCADE;
-DROP TABLE IF EXISTS tasks CASCADE;
-DROP TABLE IF EXISTS subtasks CASCADE;
-DROP TABLE IF EXISTS participants CASCADE;
-DROP TABLE IF EXISTS participant_task CASCADE;
-DROP TABLE IF EXISTS participant_subtask CASCADE;
 -- +goose StatementEnd

pkg/external/kafka/kafka.go

@@ -1 +0,0 @@
-package kafka

pkg/external/ms-auth/client.go

@@ -1 +0,0 @@
-package ms_auth

pkg/external/rabbitmq/client.go

@@ -0,0 +1 @@
+package rabbitmq