setup project

backend/service/auth.go

@@ -0,0 +1,58 @@
+package service
+
+import (
+	"context"
+	"errors"
+
+	"git.nmcnew.com/nmcnew/bracketeer/db"
+	"golang.org/x/crypto/bcrypt"
+)
+
+var (
+	ErrAuthFailed = errors.New("auth values don't match")
+)
+
+type AuthService interface {
+	Login(ctx context.Context, username string, authValue string, authType string) (*db.User, error)
+}
+type authService struct {
+	q *db.Queries
+}
+
+func NewAuthService(q *db.Queries) AuthService {
+	return &authService{
+		q: q,
+	}
+}
+
+func (s *authService) Login(ctx context.Context, username, authValue, authType string) (*db.User, error) {
+	dbValue, err := s.q.GetUserAuthValue(ctx, db.GetUserAuthValueParams{
+		Name: username,
+		Type: db.AuthTypeFromString(authType),
+	})
+	if err != nil {
+		return nil, err
+	}
+	switch authType {
+	case "password":
+		err = bcrypt.CompareHashAndPassword([]byte(dbValue.AuthValue), []byte(authValue))
+		if err != nil {
+			return nil, ErrAuthFailed
+		}
+	default:
+		if authValue != dbValue.AuthValue {
+			return nil, ErrAuthFailed
+		}
+		user, err := s.q.GetUserFromId(ctx, dbValue.UserID)
+		if err != nil {
+			return nil, err
+		}
+		return &user, nil
+	}
+
+	return nil, ErrAuthFailed
+}
+
+func (s *authService) Register(ctx context.Context, username, email, bio, profileURL, authValue, authType string) (*db.User, error) {
+	panic("unimplemented")
+}