feat: game lobby service

2026-04-25 23:20:55 +02:00
parent 32dc29359a
commit 48b0056b49
336 changed files with 57074 additions and 1418 deletions
@@ -0,0 +1,156 @@
+// Package retrystartgame implements the `lobby.game.retry_start` message
+// type. It transitions a `start_failed` game back to `ready_to_start` so
+// the admin or owner can issue a fresh start command. Membership and
+// race name reservations are not touched; the rebuilt start sequence
+// runs against the same roster.
+package retrystartgame
+
+import (
+	"context"
+	"errors"
+	"fmt"
+	"log/slog"
+	"time"
+
+	"galaxy/lobby/internal/domain/common"
+	"galaxy/lobby/internal/domain/game"
+	"galaxy/lobby/internal/logging"
+	"galaxy/lobby/internal/ports"
+	"galaxy/lobby/internal/service/shared"
+	"galaxy/lobby/internal/telemetry"
+)
+
+// Service executes the retry-start use case.
+type Service struct {
+	games     ports.GameStore
+	clock     func() time.Time
+	logger    *slog.Logger
+	telemetry *telemetry.Runtime
+}
+
+// Dependencies groups the collaborators used by Service.
+type Dependencies struct {
+	// Games mediates the CAS status transition and the result read.
+	Games ports.GameStore
+
+	// Clock supplies the wall-clock used for UpdatedAt. Defaults to
+	// time.Now when nil.
+	Clock func() time.Time
+
+	// Logger records structured service-level events. Defaults to
+	// slog.Default when nil.
+	Logger *slog.Logger
+
+	// Telemetry records the `lobby.game.transitions` counter on each
+	// successful retry. Optional; nil disables metric emission.
+	Telemetry *telemetry.Runtime
+}
+
+// NewService constructs one Service with deps.
+func NewService(deps Dependencies) (*Service, error) {
+	if deps.Games == nil {
+		return nil, errors.New("new retry start game service: nil game store")
+	}
+
+	clock := deps.Clock
+	if clock == nil {
+		clock = time.Now
+	}
+	logger := deps.Logger
+	if logger == nil {
+		logger = slog.Default()
+	}
+
+	return &Service{
+		games:     deps.Games,
+		clock:     clock,
+		logger:    logger.With("service", "lobby.retrystartgame"),
+		telemetry: deps.Telemetry,
+	}, nil
+}
+
+// Input stores the arguments required to retry-start one game.
+type Input struct {
+	// Actor identifies the caller.
+	Actor shared.Actor
+
+	// GameID identifies the target game record.
+	GameID common.GameID
+}
+
+// Handle authorizes the actor, asserts the source status is
+// `start_failed`, transitions the record to `ready_to_start`, and
+// returns the post-transition snapshot.
+func (service *Service) Handle(ctx context.Context, input Input) (game.Game, error) {
+	if service == nil {
+		return game.Game{}, errors.New("retry start game: nil service")
+	}
+	if ctx == nil {
+		return game.Game{}, errors.New("retry start game: nil context")
+	}
+	if err := input.Actor.Validate(); err != nil {
+		return game.Game{}, fmt.Errorf("retry start game: actor: %w", err)
+	}
+	if err := input.GameID.Validate(); err != nil {
+		return game.Game{}, fmt.Errorf("retry start game: %w", err)
+	}
+
+	record, err := service.games.Get(ctx, input.GameID)
+	if err != nil {
+		return game.Game{}, fmt.Errorf("retry start game: %w", err)
+	}
+	if err := authorize(input.Actor, record); err != nil {
+		return game.Game{}, err
+	}
+	if record.Status != game.StatusStartFailed {
+		return game.Game{}, fmt.Errorf(
+			"retry start game: status %q is not %q: %w",
+			record.Status, game.StatusStartFailed, game.ErrConflict,
+		)
+	}
+
+	at := service.clock().UTC()
+	if err := service.games.UpdateStatus(ctx, ports.UpdateStatusInput{
+		GameID:       input.GameID,
+		ExpectedFrom: game.StatusStartFailed,
+		To:           game.StatusReadyToStart,
+		Trigger:      game.TriggerCommand,
+		At:           at,
+	}); err != nil {
+		return game.Game{}, fmt.Errorf("retry start game: %w", err)
+	}
+
+	service.telemetry.RecordGameTransition(ctx,
+		string(game.StatusStartFailed),
+		string(game.StatusReadyToStart),
+		string(game.TriggerCommand),
+	)
+
+	updated, err := service.games.Get(ctx, input.GameID)
+	if err != nil {
+		return game.Game{}, fmt.Errorf("retry start game: %w", err)
+	}
+
+	logArgs := []any{
+		"game_id", updated.GameID.String(),
+		"from_status", string(game.StatusStartFailed),
+		"to_status", string(updated.Status),
+		"trigger", string(game.TriggerCommand),
+		"actor_kind", string(input.Actor.Kind),
+	}
+	logArgs = append(logArgs, logging.ContextAttrs(ctx)...)
+	service.logger.InfoContext(ctx, "game retry start requested", logArgs...)
+	return updated, nil
+}
+
+// authorize enforces admin OR private-owner access to the record.
+func authorize(actor shared.Actor, record game.Game) error {
+	if actor.IsAdmin() {
+		return nil
+	}
+	if record.GameType == game.GameTypePrivate && actor.UserID == record.OwnerUserID {
+		return nil
+	}
+	return fmt.Errorf("%w: actor is not authorized to retry start game %q",
+		shared.ErrForbidden, record.GameID.String())
+}
@@ -0,0 +1,132 @@
+package retrystartgame_test
+
+import (
+	"context"
+	"io"
+	"log/slog"
+	"testing"
+	"time"
+
+	"galaxy/lobby/internal/adapters/gamestub"
+	"galaxy/lobby/internal/domain/common"
+	"galaxy/lobby/internal/domain/game"
+	"galaxy/lobby/internal/service/retrystartgame"
+	"galaxy/lobby/internal/service/shared"
+
+	"github.com/stretchr/testify/assert"
+	"github.com/stretchr/testify/require"
+)
+
+func silentLogger() *slog.Logger {
+	return slog.New(slog.NewTextHandler(io.Discard, nil))
+}
+
+func fixedClock(at time.Time) func() time.Time {
+	return func() time.Time { return at }
+}
+
+func newFailedGame(t *testing.T, gameType game.GameType, ownerID string) (game.Game, time.Time) {
+	t.Helper()
+	now := time.Date(2026, 4, 25, 12, 0, 0, 0, time.UTC)
+	record, err := game.New(game.NewGameInput{
+		GameID:              common.GameID("game-r"),
+		GameName:            "test retry game",
+		GameType:            gameType,
+		OwnerUserID:         ownerID,
+		MinPlayers:          4,
+		MaxPlayers:          8,
+		StartGapHours:       12,
+		StartGapPlayers:     2,
+		EnrollmentEndsAt:    now.Add(24 * time.Hour),
+		TurnSchedule:        "0 18 * * *",
+		TargetEngineVersion: "v1.0.0",
+		Now:                 now,
+	})
+	require.NoError(t, err)
+	record.Status = game.StatusStartFailed
+	return record, now
+}
+
+func newService(t *testing.T, games *gamestub.Store, at time.Time) *retrystartgame.Service {
+	t.Helper()
+	service, err := retrystartgame.NewService(retrystartgame.Dependencies{
+		Games:  games,
+		Clock:  fixedClock(at),
+		Logger: silentLogger(),
+	})
+	require.NoError(t, err)
+	return service
+}
+
+func TestNewServiceRejectsMissingDeps(t *testing.T) {
+	_, err := retrystartgame.NewService(retrystartgame.Dependencies{})
+	require.Error(t, err)
+}
+
+func TestRetryStartGameAdminHappyPath(t *testing.T) {
+	record, now := newFailedGame(t, game.GameTypePublic, "")
+	games := gamestub.NewStore()
+	require.NoError(t, games.Save(context.Background(), record))
+
+	service := newService(t, games, now.Add(time.Hour))
+	updated, err := service.Handle(context.Background(), retrystartgame.Input{
+		Actor:  shared.NewAdminActor(),
+		GameID: record.GameID,
+	})
+	require.NoError(t, err)
+	assert.Equal(t, game.StatusReadyToStart, updated.Status)
+}
+
+func TestRetryStartGamePrivateOwnerHappyPath(t *testing.T) {
+	record, now := newFailedGame(t, game.GameTypePrivate, "user-owner")
+	games := gamestub.NewStore()
+	require.NoError(t, games.Save(context.Background(), record))
+
+	service := newService(t, games, now.Add(time.Hour))
+	updated, err := service.Handle(context.Background(), retrystartgame.Input{
+		Actor:  shared.NewUserActor("user-owner"),
+		GameID: record.GameID,
+	})
+	require.NoError(t, err)
+	assert.Equal(t, game.StatusReadyToStart, updated.Status)
+}
+
+func TestRetryStartGameRejectsNonOwnerUser(t *testing.T) {
+	record, now := newFailedGame(t, game.GameTypePrivate, "user-owner")
+	games := gamestub.NewStore()
+	require.NoError(t, games.Save(context.Background(), record))
+
+	service := newService(t, games, now.Add(time.Hour))
+	_, err := service.Handle(context.Background(), retrystartgame.Input{
+		Actor:  shared.NewUserActor("user-other"),
+		GameID: record.GameID,
+	})
+	require.ErrorIs(t, err, shared.ErrForbidden)
+}
+
+func TestRetryStartGameRejectsWrongStatus(t *testing.T) {
+	record, now := newFailedGame(t, game.GameTypePublic, "")
+	record.Status = game.StatusRunning
+	startedAt := now.Add(30 * time.Minute)
+	record.StartedAt = &startedAt
+	games := gamestub.NewStore()
+	require.NoError(t, games.Save(context.Background(), record))
+
+	service := newService(t, games, now.Add(time.Hour))
+	_, err := service.Handle(context.Background(), retrystartgame.Input{
+		Actor:  shared.NewAdminActor(),
+		GameID: record.GameID,
+	})
+	require.ErrorIs(t, err, game.ErrConflict)
+}
+
+func TestRetryStartGameRejectsMissingRecord(t *testing.T) {
+	games := gamestub.NewStore()
+	service := newService(t, games, time.Now().UTC())
+
+	_, err := service.Handle(context.Background(), retrystartgame.Input{
+		Actor:  shared.NewAdminActor(),
+		GameID: common.GameID("game-missing"),
+	})
+	require.ErrorIs(t, err, game.ErrNotFound)
+}