package realtime

import (
	"time"

	"lingniu-vehicle-ingest/go/vehicle-gateway/internal/envelope"
)

type Snapshot struct {
	VehicleKey     string              `json:"vehicle_key"`
	VIN            string              `json:"vin"`
	Protocol       envelope.Protocol   `json:"protocol,omitempty"`
	Protocols      []envelope.Protocol `json:"protocols,omitempty"`
	EventID        string              `json:"event_id,omitempty"`
	EventTimeMS    int64               `json:"event_time_ms"`
	ReceivedAtMS   int64               `json:"received_at_ms"`
	SourceEndpoint string              `json:"source_endpoint,omitempty"`
	Fields         map[string]any      `json:"fields,omitempty"`
	FieldTimesMS   map[string]int64    `json:"field_times_ms,omitempty"`
	UpdatedAtMS    int64               `json:"updated_at_ms"`
}

type OnlineStatus struct {
	VehicleKey string              `json:"vehicle_key"`
	VIN        string              `json:"vin"`
	Online     bool                `json:"online"`
	LastSeenMS int64               `json:"last_seen_ms"`
	Protocols  []envelope.Protocol `json:"protocols,omitempty"`
	TTLSeconds int64               `json:"ttl_seconds"`
}

type Config struct {
	OnlineTTL time.Duration
}

func (c Config) ttl() time.Duration {
	if c.OnlineTTL <= 0 {
		return 10 * time.Minute
	}
	return c.OnlineTTL
}