package models

import (
	"time"

	"github.com/google/uuid"
)

type User struct {
	ID           uuid.UUID `json:"id"`
	Email        string    `json:"email"`
	PasswordHash string    `json:"-"`
	Name         string    `json:"name"`
	Role         string    `json:"role"`
	CreatedAt    time.Time `json:"created_at"`
}

type Protocol struct {
	ID          uuid.UUID `json:"id"`
	Code        string    `json:"code"`
	Name        string    `json:"name"`
	Description string    `json:"description"`
	Port        int       `json:"port"`
	Enabled     bool      `json:"enabled"`
	SortOrder   int       `json:"sort_order"`
	CreatedAt   time.Time `json:"created_at"`
	UpdatedAt   time.Time `json:"updated_at"`

	InstalledOn []NodeProtoRef `json:"installed_on,omitempty"`
	EnabledOn   []NodeProtoRef `json:"enabled_on,omitempty"`
}

type NodeProtoRef struct {
	NodeID   uuid.UUID  `json:"node_id"`
	NodeName string     `json:"node_name"`
	Host     string     `json:"host"`
	Status   NodeStatus `json:"status"`
}

type NodeProtocol struct {
	NodeID       uuid.UUID `json:"node_id"`
	ProtocolID   uuid.UUID `json:"protocol_id"`
	ProtocolCode string    `json:"protocol_code"`
	ProtocolName string    `json:"protocol_name"`
	Port         int       `json:"port"`
	Installed    bool      `json:"installed"`
	Enabled      bool      `json:"enabled"`
	UpdatedAt    time.Time `json:"updated_at"`
}

func (p Protocol) EnabledLabel() string {
	if p.Enabled {
		return "Включён"
	}
	return "Выключен"
}

func (p Protocol) InstallCount() int { return len(p.InstalledOn) }
func (p Protocol) ActiveCount() int  { return len(p.EnabledOn) }


type NodeStatus string

const (
	NodeStatusPending    NodeStatus = "pending"
	NodeStatusInstalling NodeStatus = "installing"
	NodeStatusOnline     NodeStatus = "online"
	NodeStatusOffline    NodeStatus = "offline"
	NodeStatusError      NodeStatus = "error"
)

type Node struct {
	ID           uuid.UUID  `json:"id"`
	Name         string     `json:"name"`
	Host         string     `json:"host"`
	SSHPort      int        `json:"ssh_port"`
	SSHUser      string     `json:"ssh_user"`
	SSHAuthType  string     `json:"ssh_auth_type"` // password | key
	SSHSecretEnc string     `json:"-"`
	NodePort     int        `json:"node_port"`
	SecretKey    string     `json:"-"`
	Status       NodeStatus `json:"status"`
	InstallMode  string     `json:"install_mode"` // auto | manual
	LastError    string     `json:"last_error"`
	InstallLog   string     `json:"install_log"`
	AgentVersion string     `json:"agent_version"`
	LastSeenAt   *time.Time `json:"last_seen_at,omitempty"`
	CreatedAt    time.Time  `json:"created_at"`
	UpdatedAt    time.Time  `json:"updated_at"`
}

func (n Node) StatusLabel() string {
	switch n.Status {
	case NodeStatusOnline:
		return "Online"
	case NodeStatusInstalling:
		return "Установка"
	case NodeStatusOffline:
		return "Offline"
	case NodeStatusError:
		return "Ошибка"
	default:
		return "Ожидание"
	}
}

type DashboardStats struct {
	ProtocolsTotal   int
	ProtocolsEnabled int
	AdminsTotal      int
	NodesTotal       int
	NodesOnline      int
}