feat: migrate auth module to modular domain pattern

internal/auth/repository/repository.go

@@ -0,0 +1,69 @@
+package repository
+
+import (
+	"context"
+	"database/sql"
+	"errors"
+	"mal/internal/db"
+	"mal/internal/domain"
+	"time"
+
+	"github.com/google/uuid"
+)
+
+type authRepository struct {
+	queries *db.Queries
+}
+
+func NewAuthRepository(queries *db.Queries) domain.AuthRepository {
+	return &authRepository{queries: queries}
+}
+
+func (r *authRepository) GetUserByUsername(ctx context.Context, username string) (*domain.User, error) {
+	u, err := r.queries.GetUserByUsername(ctx, username)
+	if err != nil {
+		if errors.Is(err, sql.ErrNoRows) {
+			return nil, nil
+		}
+		return nil, err
+	}
+	return &u, nil
+}
+
+func (r *authRepository) GetUserByID(ctx context.Context, id string) (*domain.User, error) {
+	u, err := r.queries.GetUser(ctx, id)
+	if err != nil {
+		if errors.Is(err, sql.ErrNoRows) {
+			return nil, nil
+		}
+		return nil, err
+	}
+	return &u, nil
+}
+
+func (r *authRepository) CreateSession(ctx context.Context, userID string, sessionID string) (*domain.Session, error) {
+	s, err := r.queries.CreateSession(ctx, db.CreateSessionParams{
+		ID:        sessionID,
+		UserID:    userID,
+		ExpiresAt: time.Now().Add(24 * time.Hour),
+	})
+	if err != nil {
+		return nil, err
+	}
+	return &s, nil
+}
+
+func (r *authRepository) GetSession(ctx context.Context, sessionID string) (*domain.Session, error) {
+	s, err := r.queries.GetSession(ctx, sessionID)
+	if err != nil {
+		if errors.Is(err, sql.ErrNoRows) {
+			return nil, nil
+		}
+		return nil, err
+	}
+	return &s, nil
+}
+
+func (r *authRepository) DeleteSession(ctx context.Context, sessionID string) error {
+	return r.queries.DeleteSession(ctx, sessionID)
+}