package ai

import (
	"errors"
	"strings"

	"gorm.io/gorm"
	"senlinai-agent/backend/internal/domain"
)

type SessionService struct {
	db *gorm.DB
}

func NewSessionService(database *gorm.DB) *SessionService {
	return &SessionService{db: database}
}

func (s *SessionService) Create(projectID uint, userID uint, title string) (*domain.AISession, error) {
	title = strings.TrimSpace(title)
	if title == "" {
		return nil, errors.New("session title is required")
	}
	session := &domain.AISession{ProjectID: projectID, CreatedBy: userID, Title: title}
	return session, s.db.Create(session).Error
}