Files
zeekay 1943f1c093 Hanzo Commerce
Multi-tenant commerce and billing: orders, subscriptions, invoices, plans,
usage metering and a credit ledger. One Go binary. MIT OR Apache-2.0.

Claude-Session: https://claude.ai/code/session_01SAtaDFm8VDiWrhYHNNtxMw
2026-09-23 21:52:16 -07:00

87 lines
2.0 KiB
Go

package meter
import (
"time"
"github.com/hanzoai/orm"
"github.com/hanzoai/commerce/datastore"
"github.com/hanzoai/commerce/models/mixin"
"github.com/hanzoai/commerce/util/json"
"github.com/hanzoai/commerce/util/val"
. "github.com/hanzoai/commerce/types"
)
var eventKind = "meter-event"
// MeterEvent records a single usage data point for a meter.
func init() { orm.Register[MeterEvent]("meter-event") }
type MeterEvent struct {
mixin.Model[MeterEvent]
MeterId string `json:"meterId"`
UserId string `json:"userId"`
Value int64 `json:"value"`
Timestamp time.Time `json:"timestamp"`
// Idempotency key for deduplication
Idempotency string `json:"idempotency,omitempty"`
// JSON-encoded dimension values, e.g. {"model":"gpt-4","region":"us"}
Dimensions Map `json:"dimensions,omitempty" datastore:"-"`
Dimensions_ string `json:"-" datastore:",noindex"`
Metadata Map `json:"metadata,omitempty" datastore:"-"`
Metadata_ string `json:"-" datastore:",noindex"`
}
func (e *MeterEvent) Defaults() {
e.Parent = e.Datastore().NewKey("synckey", "", 1, nil)
if e.Timestamp.IsZero() {
e.Timestamp = time.Now()
}
}
func (e *MeterEvent) Load(ps []datastore.Property) (err error) {
if err = datastore.LoadStruct(e, ps); err != nil {
return err
}
if len(e.Dimensions_) > 0 {
err = json.DecodeBytes([]byte(e.Dimensions_), &e.Dimensions)
if err != nil {
return err
}
}
if len(e.Metadata_) > 0 {
err = json.DecodeBytes([]byte(e.Metadata_), &e.Metadata)
}
return err
}
func (e *MeterEvent) Save() (ps []datastore.Property, err error) {
e.Dimensions_ = string(json.EncodeBytes(&e.Dimensions))
e.Metadata_ = string(json.EncodeBytes(&e.Metadata))
return datastore.SaveStruct(e)
}
func (e *MeterEvent) Validator() *val.Validator {
return nil
}
func NewEvent(db *datastore.Datastore) *MeterEvent {
e := new(MeterEvent)
e.Init(db)
e.Defaults()
return e
}
func QueryEvents(db *datastore.Datastore) datastore.Query {
return db.Query(eventKind)
}