package dto

import "smoop-api/internal/models"

type DeviceDto struct {
	GUID  string    `json:"guid"`
	Name  string    `json:"name"`
	Users []UserDto `json:"users,omitempty"`
}

type DeviceListDto struct {
	Devices []DeviceDto `json:"devices"`
	Offset  int         `json:"offset"`
	Limit   int         `json:"limit"`
	Total   int64       `json:"total"`
}

type CreateDeviceDto struct {
	GUID    string `json:"guid" binding:"required"`
	Name    string `json:"name" binding:"required"`
	UserIDs []uint `json:"userIds"`
}

type RenameDeviceDto struct {
	Name string `json:"name" binding:"required"`
}

type EditDeviceToUserRelationDto struct {
	UserID  uint   `json:"userId"`
	UserIDs []uint `json:"userIds"`
}

// Remove users: accept one or many (kept separate for clarity of intent)
type RemoveDeviceUsersDto struct {
	UserID  uint   `json:"userId"`
	UserIDs []uint `json:"userIds"`
}

// Replace users: set entire list (may be empty to clear all)
type SetDeviceUsersDto struct {
	UserIDs []uint `json:"userIds"`
}

func MapDevice(d models.Device) DeviceDto {
	out := DeviceDto{
		GUID: d.GUID,
		Name: d.Name,
	}
	if len(d.Users) > 0 {
		out.Users = make([]UserDto, 0, len(d.Users))
		for _, u := range d.Users {
			out.Users = append(out.Users, MapUser(u))
		}
	}
	return out
}