package repository

import (
	"baron-sso-backend/internal/domain"
	"context"

	"gorm.io/gorm"
)

type UserGroupRepository interface {
	Create(ctx context.Context, group *domain.UserGroup) error
	Update(ctx context.Context, group *domain.UserGroup) error
	Delete(ctx context.Context, id string) error
	FindByID(ctx context.Context, id string) (*domain.UserGroup, error)
	ListByTenantID(ctx context.Context, tenantID string) ([]domain.UserGroup, error)
}

type userGroupRepository struct {
	db *gorm.DB
}

func NewUserGroupRepository(db *gorm.DB) UserGroupRepository {
	return &userGroupRepository{db: db}
}

func (r *userGroupRepository) Create(ctx context.Context, group *domain.UserGroup) error {
	return r.db.WithContext(ctx).Create(group).Error
}

func (r *userGroupRepository) Update(ctx context.Context, group *domain.UserGroup) error {
	return r.db.WithContext(ctx).Save(group).Error
}

func (r *userGroupRepository) Delete(ctx context.Context, id string) error {
	return r.db.WithContext(ctx).Delete(&domain.UserGroup{}, "id = ?", id).Error
}

func (r *userGroupRepository) FindByID(ctx context.Context, id string) (*domain.UserGroup, error) {
	var group domain.UserGroup
	// Using Where to be more explicit and avoid issues with GORM's default primary key handling if ID is string/uuid
	if err := r.db.WithContext(ctx).Where("id = ?", id).First(&group).Error; err != nil {
		return nil, err
	}
	return &group, nil
}

func (r *userGroupRepository) ListByTenantID(ctx context.Context, tenantID string) ([]domain.UserGroup, error) {
	var groups []domain.UserGroup
	if err := r.db.WithContext(ctx).Where("tenant_id = ?", tenantID).Find(&groups).Error; err != nil {
		return nil, err
	}
	return groups, nil
}