package initdb

import (
	"senlinai-agent/backend/internal/models"

	"golang.org/x/crypto/bcrypt"
	"gorm.io/gorm"
)

const (
	rootUsername = "root"
	rootPassword = "123456"
	rootRole     = "root"
)

// InitUser returns the existing root user or creates and returns it when the user table is empty.
func InitUser(database *gorm.DB) (*models.SaUser, error) {
	var count int64
	var user models.SaUser
	database.Model(&models.SaUser{}).Where("email=?", rootUsername).First(&user).Count(&count)

	if count == 0 {
		passwordHash, err := bcrypt.GenerateFromPassword([]byte(rootPassword), bcrypt.DefaultCost)
		if err != nil {
			return nil, err
		}

		user = models.SaUser{
			Email:        rootUsername,
			DisplayName:  rootUsername,
			PasswordHash: string(passwordHash),
			Role:         rootRole,
		}
		if err := database.Create(&user).Error; err != nil {
			return nil, err
		}
		return &user, nil
	}

	return &user, nil

}