add base

cmd/evening_detective_server/main.go

@@ -19,6 +19,7 @@ import (
 	"evening_detective_server/internal/repos/games_repo"
 	"evening_detective_server/internal/repos/refresh_tokens_repo"
 	"evening_detective_server/internal/repos/scenarios_repo"
+	"evening_detective_server/internal/repos/screen_sessions_repo"
 	"evening_detective_server/internal/repos/team_answers_repo"
 	"evening_detective_server/internal/repos/teams_repo"
 	"evening_detective_server/internal/repos/users_repo"
@@ -128,6 +129,7 @@ func main() {
 	actionsRepo := actions_repo.NewActionsRepo(dbpool)
 	applicationsRepo := applications_repo.NewApplicationsRepo(dbpool)
 	answersRepo := team_answers_repo.NewTeamAnswersRepo(dbpool)
+	screenRepo := screen_sessions_repo.NewScreenSessionsRepo(dbpool)
 	gameService := game_service.NewGameService(
 		gameRepo,
 		teamRepo,
@@ -172,6 +174,8 @@ func main() {
 					"/crabs.evening_detective_server.EveningDetectiveServer/GetTerms":            true,
 					"/crabs.evening_detective_server.EveningDetectiveServer/GetPrivacy":          true,
 					"/crabs.evening_detective_server.EveningDetectiveServer/GetConsent":          true,
+					"/crabs.evening_detective_server.EveningDetectiveServer/CreateScreenSession": true,
+					"/crabs.evening_detective_server.EveningDetectiveServer/GetScreenState":      true,
 				},
 				processorJWT,
 			),
@@ -186,6 +190,7 @@ func main() {
 			fileService,
 			scenarioService,
 			gameService,
+			screenRepo,
 		),
 	)
 

internal/app/server.go

@@ -2,9 +2,12 @@ package app
 
 import (
 	"context"
+	"crypto/sha256"
+	"encoding/base64"
 	"errors"
 	"fmt"
 	"net/netip"
+	"strconv"
 	"strings"
 
 	"evening_detective_server/docs"
@@ -14,6 +17,7 @@ import (
 	"evening_detective_server/internal/modules/scenario_archive"
 	"evening_detective_server/internal/modules/string_tools"
 	"evening_detective_server/internal/repos/scenarios_repo"
+	"evening_detective_server/internal/repos/screen_sessions_repo"
 	"evening_detective_server/internal/repos/users_repo"
 	"evening_detective_server/internal/services/file_service"
 	"evening_detective_server/internal/services/game_service"
@@ -22,6 +26,7 @@ import (
 	"evening_detective_server/internal/services/users_service"
 	proto "evening_detective_server/proto"
 
+	"github.com/google/uuid"
 	"google.golang.org/genproto/googleapis/api/httpbody"
 	"google.golang.org/grpc"
 	"google.golang.org/grpc/codes"
@@ -40,6 +45,7 @@ type server struct {
 	fileService     *file_service.FileService
 	scenarioService *scenarios_service.ScenarioService
 	gameService     *game_service.GameService
+	screenRepo      *screen_sessions_repo.ScreenSessionsRepo
 }
 
 func NewServer(
@@ -48,6 +54,7 @@ func NewServer(
 	fileService *file_service.FileService,
 	scenarioService *scenarios_service.ScenarioService,
 	gameService *game_service.GameService,
+	screenRepo *screen_sessions_repo.ScreenSessionsRepo,
 ) proto.EveningDetectiveServerServer {
 	return &server{
 		usersService:    usersService,
@@ -55,23 +62,111 @@ func NewServer(
 		fileService:     fileService,
 		scenarioService: scenarioService,
 		gameService:     gameService,
+		screenRepo:      screenRepo,
 	}
 }
 
-func (s *server) CreateScreenSession(context.Context, *proto.CreateScreenSessionReq) (*proto.CreateScreenSessionRsp, error) {
+func (s *server) CreateScreenSession(ctx context.Context, _ *proto.CreateScreenSessionReq) (*proto.CreateScreenSessionRsp, error) {
-	panic("CreateScreenSession is not implemented")
+	token := uuid.New().String()
+	id, err := s.screenRepo.Create(ctx, hashScreenToken(token))
+	if err != nil {
+		return nil, status.Error(codes.Internal, "не удалось создать сессию экрана")
+	}
+	return &proto.CreateScreenSessionRsp{ScreenId: fmt.Sprint(id), AccessToken: token}, nil
 }
 
-func (s *server) GetScreenState(context.Context, *proto.GetScreenStateReq) (*proto.GetScreenStateRsp, error) {
+func (s *server) GetScreenState(ctx context.Context, req *proto.GetScreenStateReq) (*proto.GetScreenStateRsp, error) {
-	panic("GetScreenState is not implemented")
+	if req == nil || req.ScreenId == "" || req.AccessToken == "" {
+		return nil, status.Error(codes.InvalidArgument, "некорректные данные экрана")
+	}
+	id, err := strconv.Atoi(req.ScreenId)
+	if err != nil || id <= 0 {
+		return nil, status.Error(codes.InvalidArgument, "некорректный идентификатор экрана")
+	}
+	session, err := s.screenRepo.Get(ctx, id, hashScreenToken(req.AccessToken))
+	if errors.Is(err, screen_sessions_repo.ErrScreenNotFound) {
+		return nil, status.Error(codes.Unauthenticated, "недействительная сессия экрана")
+	}
+	if err != nil {
+		return nil, status.Error(codes.Internal, "не удалось получить состояние экрана")
+	}
+	return &proto.GetScreenStateRsp{State: screenState(session)}, nil
 }
 
-func (s *server) BindScreen(context.Context, *proto.BindScreenReq) (*proto.BindScreenRsp, error) {
+func (s *server) BindScreen(ctx context.Context, req *proto.BindScreenReq) (*proto.BindScreenRsp, error) {
-	panic("BindScreen is not implemented")
+	if !canManageScreens(ctx) {
+		return nil, status.Error(codes.PermissionDenied, "permission denied")
+	}
+	if req == nil || req.ScreenId == "" || req.AccessToken == "" || req.GameId <= 0 {
+		return nil, status.Error(codes.InvalidArgument, "некорректные данные привязки")
+	}
+	id, err := strconv.Atoi(req.ScreenId)
+	if err != nil || id <= 0 {
+		return nil, status.Error(codes.InvalidArgument, "некорректный идентификатор экрана")
+	}
+	if _, err = s.gameService.GetGame(ctx, int(req.GameId)); err != nil {
+		return nil, status.Error(codes.NotFound, "игра не найдена")
+	}
+	hash := hashScreenToken(req.AccessToken)
+	if err = s.screenRepo.Bind(ctx, id, int(req.GameId), hash); err != nil {
+		if errors.Is(err, screen_sessions_repo.ErrScreenNotFound) {
+			return nil, status.Error(codes.Unauthenticated, "недействительная сессия экрана")
+		}
+		return nil, status.Error(codes.Internal, "не удалось привязать экран")
+	}
+	session, err := s.screenRepo.Get(ctx, id, hash)
+	if err != nil {
+		return nil, status.Error(codes.Internal, "не удалось получить состояние экрана")
+	}
+	return &proto.BindScreenRsp{State: screenState(session)}, nil
 }
 
-func (s *server) UnbindScreen(context.Context, *proto.UnbindScreenReq) (*proto.UnbindScreenRsp, error) {
+func (s *server) UnbindScreen(ctx context.Context, req *proto.UnbindScreenReq) (*proto.UnbindScreenRsp, error) {
-	panic("UnbindScreen is not implemented")
+	if !canManageScreens(ctx) {
+		return nil, status.Error(codes.PermissionDenied, "permission denied")
+	}
+	if req == nil || req.ScreenId == "" {
+		return nil, status.Error(codes.InvalidArgument, "некорректный идентификатор экрана")
+	}
+	id, err := strconv.Atoi(req.ScreenId)
+	if err != nil || id <= 0 {
+		return nil, status.Error(codes.InvalidArgument, "некорректный идентификатор экрана")
+	}
+	if err = s.screenRepo.Unbind(ctx, id); err != nil {
+		if errors.Is(err, screen_sessions_repo.ErrScreenNotFound) {
+			return nil, status.Error(codes.NotFound, "экран не найден")
+		}
+		return nil, status.Error(codes.Internal, "не удалось отвязать экран")
+	}
+	return &proto.UnbindScreenRsp{}, nil
+}
+
+func canManageScreens(ctx context.Context) bool {
+	claims, ok := ctx.Value("claims").(*processor_jwt.JWTClaims)
+	if !ok || claims == nil {
+		return false
+	}
+	return roles.HasRole(claims, roles.Organizer) || roles.HasRole(claims, roles.Author)
+}
+
+func hashScreenToken(token string) string {
+	sum := sha256.Sum256([]byte(token))
+	return base64.RawURLEncoding.EncodeToString(sum[:])
+}
+
+func screenState(session *screen_sessions_repo.ScreenSession) *proto.ScreenState {
+	state := &proto.ScreenState{
+		Id:     fmt.Sprint(session.ID),
+		Status: "waiting",
+		Mode:   proto.ScreenMode_SCREEN_MODE_UNSPECIFIED,
+	}
+	if session.GameID != nil {
+		gameID := int32(*session.GameID)
+		state.GameId = &gameID
+		state.Status = "bound"
+		state.Mode = proto.ScreenMode_SCREEN_MODE_COVER
+	}
+	return state
 }
 
 func (s *server) SetScreenMode(context.Context, *proto.SetScreenModeReq) (*proto.SetScreenModeRsp, error) {

internal/repos/screen_sessions_repo/repo.go

@@ -0,0 +1,77 @@
+package screen_sessions_repo
+
+import (
+	"context"
+	"errors"
+
+	"github.com/jackc/pgx/v5"
+	"github.com/jackc/pgx/v5/pgxpool"
+)
+
+var ErrScreenNotFound = errors.New("Экран не найден")
+
+type ScreenSession struct {
+	ID     int
+	GameID *int
+}
+
+type ScreenSessionsRepo struct {
+	pool *pgxpool.Pool
+}
+
+func NewScreenSessionsRepo(pool *pgxpool.Pool) *ScreenSessionsRepo {
+	return &ScreenSessionsRepo{pool: pool}
+}
+
+func (r *ScreenSessionsRepo) Create(ctx context.Context, tokenHash string) (int, error) {
+	var id int
+	err := r.pool.QueryRow(ctx, `
+		INSERT INTO screen_sessions (access_token_hash)
+		VALUES ($1)
+		RETURNING id`, tokenHash).Scan(&id)
+	return id, err
+}
+
+func (r *ScreenSessionsRepo) Get(ctx context.Context, id int, tokenHash string) (*ScreenSession, error) {
+	session := &ScreenSession{ID: id}
+	err := r.pool.QueryRow(ctx, `
+		SELECT game_id
+		FROM screen_sessions
+		WHERE id = $1 AND access_token_hash = $2`, id, tokenHash).
+		Scan(&session.GameID)
+	if errors.Is(err, pgx.ErrNoRows) {
+		return nil, ErrScreenNotFound
+	}
+	if err != nil {
+		return nil, err
+	}
+	return session, nil
+}
+
+func (r *ScreenSessionsRepo) Bind(ctx context.Context, id, gameID int, tokenHash string) error {
+	result, err := r.pool.Exec(ctx, `
+		UPDATE screen_sessions
+		SET game_id = $1, updated_at = NOW()
+		WHERE id = $2 AND access_token_hash = $3`, gameID, id, tokenHash)
+	if err != nil {
+		return err
+	}
+	if result.RowsAffected() == 0 {
+		return ErrScreenNotFound
+	}
+	return nil
+}
+
+func (r *ScreenSessionsRepo) Unbind(ctx context.Context, id int) error {
+	result, err := r.pool.Exec(ctx, `
+		UPDATE screen_sessions
+		SET game_id = NULL, updated_at = NOW()
+		WHERE id = $1`, id)
+	if err != nil {
+		return err
+	}
+	if result.RowsAffected() == 0 {
+		return ErrScreenNotFound
+	}
+	return nil
+}

migrations/20260910120000_create_screen_sessions_table.sql

@@ -0,0 +1,11 @@
+-- +goose Up
+CREATE TABLE IF NOT EXISTS screen_sessions (
+    id BIGSERIAL PRIMARY KEY,
+    access_token_hash TEXT NOT NULL UNIQUE,
+    game_id INTEGER REFERENCES games (id) ON DELETE SET NULL,
+    created_at TIMESTAMP NOT NULL DEFAULT NOW(),
+    updated_at TIMESTAMP NOT NULL DEFAULT NOW()
+);
+
+-- +goose Down
+DROP TABLE IF EXISTS screen_sessions;