package model

import (
	"encoding/json"
	"time"
)

// PresenceType constants for AgentBotPresenceEvent.
const (
	PresenceOnline = "online"
	PresenceOffline = "offline"
	PresenceBusy    = "busy"
)

// AgentBotPresenceEvent represents a bot presence state change event.
// Reference: P2B M2 spec — tracks when a bot goes online/offline/busy on an inbox.
type AgentBotPresenceEvent struct {
	ID           uint            `gorm:"primaryKey" json:"id"`
	AgentBotID   uint            `gorm:"not null;index" json:"agent_bot_id"`
	InboxID      uint            `gorm:"not null;index" json:"inbox_id"`
	AccountID    uint            `gorm:"not null;index" json:"account_id"`
	PresenceType string          `gorm:"size:100;not null" json:"presence_type"` // online/offline/busy
	Metadata     json.RawMessage `gorm:"type:jsonb" json:"metadata"`
	CreatedAt    time.Time       `gorm:"autoCreateTime" json:"created_at"`

	AgentBot AgentBot `gorm:"foreignKey:AgentBotID" json:"agent_bot,omitempty"`
	Inbox    Inbox    `gorm:"foreignKey:InboxID" json:"inbox,omitempty"`
}

func (AgentBotPresenceEvent) TableName() string { return "agent_bot_presence_events" }