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|
package controlplane
import (
"context"
"errors"
"fmt"
"strings"
"time"
"github.com/jackc/pgx/v5"
)
const maxAlertThresholdMicros int64 = 1_000_000_000_000_000
func normalizeBillingPreferenceDefaults(defaults BillingPreferenceDefaults) BillingPreferenceDefaults {
if defaults.LowBalanceThresholdMicros <= 0 {
defaults.LowBalanceThresholdMicros = 5_000_000
}
if defaults.SpendAnomalyMultiplier < 2 {
defaults.SpendAnomalyMultiplier = 3
}
if defaults.SpendAnomalyMinMicros < 0 {
defaults.SpendAnomalyMinMicros = 10_000_000
}
return defaults
}
func (s *Store) GetTenantPreferences(ctx context.Context, tenantID string, defaults BillingPreferenceDefaults) (TenantPreferences, error) {
defaults = normalizeBillingPreferenceDefaults(defaults)
result := TenantPreferences{TenantID: strings.TrimSpace(tenantID), LowBalanceEnabled: true,
LowBalanceThresholdMicros: defaults.LowBalanceThresholdMicros, SpendAnomalyEnabled: true,
SpendAnomalyMultiplier: defaults.SpendAnomalyMultiplier, SpendAnomalyMinMicros: defaults.SpendAnomalyMinMicros}
if result.TenantID == "" {
return result, nil
}
var defaultModel, fallbackModel *string
var updatedAt time.Time
err := s.db.QueryRow(ctx, `
SELECT default_model, fallback_model, low_balance_enabled, low_balance_threshold_micros,
spend_anomaly_enabled, COALESCE(spend_anomaly_multiplier,$2), COALESCE(spend_anomaly_min_micros,$3), updated_at
FROM tenant_preferences WHERE tenant_id=$1`, result.TenantID, defaults.SpendAnomalyMultiplier, defaults.SpendAnomalyMinMicros).Scan(
&defaultModel, &fallbackModel, &result.LowBalanceEnabled, &result.LowBalanceThresholdMicros,
&result.SpendAnomalyEnabled, &result.SpendAnomalyMultiplier, &result.SpendAnomalyMinMicros, &updatedAt)
if errors.Is(err, pgx.ErrNoRows) {
return result, nil
}
if err != nil {
return TenantPreferences{}, fmt.Errorf("query tenant preferences: %w", err)
}
if defaultModel != nil {
result.DefaultModel = *defaultModel
}
if fallbackModel != nil {
result.FallbackModel = *fallbackModel
}
result.UpdatedAt = &updatedAt
return result, nil
}
func (s *Store) SetDeveloperPreferences(ctx context.Context, input SetDeveloperPreferencesInput, defaults BillingPreferenceDefaults) (TenantPreferences, error) {
input.TenantID = strings.TrimSpace(input.TenantID)
input.DefaultModel = strings.TrimSpace(input.DefaultModel)
input.FallbackModel = strings.TrimSpace(input.FallbackModel)
defaults = normalizeBillingPreferenceDefaults(defaults)
if input.TenantID == "" {
return TenantPreferences{}, errors.New("tenant_id is required")
}
if input.DefaultModel != "" && input.DefaultModel == input.FallbackModel {
return TenantPreferences{}, errors.New("default_model and fallback_model must be different")
}
available, err := s.ListDeveloperModels(ctx, input.TenantID)
if err != nil {
return TenantPreferences{}, err
}
allowed := make(map[string]struct{}, len(available))
for _, model := range available {
allowed[model.PublicID] = struct{}{}
}
for field, model := range map[string]string{"default_model": input.DefaultModel, "fallback_model": input.FallbackModel} {
if model != "" {
if _, ok := allowed[model]; !ok {
return TenantPreferences{}, fmt.Errorf("%s is not available to this tenant", field)
}
}
}
tx, err := s.db.Begin(ctx)
if err != nil {
return TenantPreferences{}, err
}
defer tx.Rollback(ctx)
if err := tx.QueryRow(ctx, `SELECT id FROM tenants WHERE id=$1`, input.TenantID).Scan(new(string)); err != nil {
if errors.Is(err, pgx.ErrNoRows) {
return TenantPreferences{}, ErrNotFound
}
return TenantPreferences{}, err
}
var result TenantPreferences
var defaultModel, fallbackModel *string
var updatedAt time.Time
if err := tx.QueryRow(ctx, `
INSERT INTO tenant_preferences (tenant_id, default_model, fallback_model)
VALUES ($1, NULLIF($2,''), NULLIF($3,''))
ON CONFLICT (tenant_id) DO UPDATE SET default_model=EXCLUDED.default_model,
fallback_model=EXCLUDED.fallback_model, updated_at=now()
RETURNING tenant_id::text, default_model, fallback_model, low_balance_enabled,
low_balance_threshold_micros, spend_anomaly_enabled, COALESCE(spend_anomaly_multiplier,$4),
COALESCE(spend_anomaly_min_micros,$5), updated_at`, input.TenantID, input.DefaultModel, input.FallbackModel,
defaults.SpendAnomalyMultiplier, defaults.SpendAnomalyMinMicros).Scan(
&result.TenantID, &defaultModel, &fallbackModel, &result.LowBalanceEnabled,
&result.LowBalanceThresholdMicros, &result.SpendAnomalyEnabled, &result.SpendAnomalyMultiplier,
&result.SpendAnomalyMinMicros, &updatedAt); err != nil {
return TenantPreferences{}, fmt.Errorf("save developer preferences: %w", err)
}
if defaultModel != nil {
result.DefaultModel = *defaultModel
}
if fallbackModel != nil {
result.FallbackModel = *fallbackModel
}
result.UpdatedAt = &updatedAt
if err := tx.Commit(ctx); err != nil {
return TenantPreferences{}, err
}
return result, nil
}
func (s *Store) SetBillingPreferences(ctx context.Context, input SetBillingPreferencesInput, defaults BillingPreferenceDefaults) (TenantPreferences, error) {
input.TenantID = strings.TrimSpace(input.TenantID)
if input.TenantID == "" {
return TenantPreferences{}, errors.New("tenant_id is required")
}
defaults = normalizeBillingPreferenceDefaults(defaults)
if input.LowBalanceThresholdMicros != nil && (*input.LowBalanceThresholdMicros < 0 || *input.LowBalanceThresholdMicros > maxAlertThresholdMicros) {
return TenantPreferences{}, errors.New("low balance threshold is outside the supported range")
}
if input.SpendAnomalyMultiplier != nil && (*input.SpendAnomalyMultiplier < 2 || *input.SpendAnomalyMultiplier > 1000) {
return TenantPreferences{}, errors.New("spend anomaly multiplier must be between 2 and 1000")
}
if input.SpendAnomalyMinMicros != nil && (*input.SpendAnomalyMinMicros < 0 || *input.SpendAnomalyMinMicros > maxAlertThresholdMicros) {
return TenantPreferences{}, errors.New("spend anomaly minimum is outside the supported range")
}
tx, err := s.db.Begin(ctx)
if err != nil {
return TenantPreferences{}, err
}
defer tx.Rollback(ctx)
if err := tx.QueryRow(ctx, `SELECT id FROM tenants WHERE id=$1`, input.TenantID).Scan(new(string)); err != nil {
if errors.Is(err, pgx.ErrNoRows) {
return TenantPreferences{}, ErrNotFound
}
return TenantPreferences{}, err
}
var result TenantPreferences
var defaultModel, fallbackModel *string
var updatedAt time.Time
if err := tx.QueryRow(ctx, `
INSERT INTO tenant_preferences (tenant_id, low_balance_enabled, low_balance_threshold_micros,
spend_anomaly_enabled, spend_anomaly_multiplier, spend_anomaly_min_micros)
VALUES ($1, COALESCE($2::boolean, TRUE), COALESCE($3::bigint, $7::bigint),
COALESCE($4::boolean, TRUE), $5::bigint, $6::bigint)
ON CONFLICT (tenant_id) DO UPDATE SET
low_balance_enabled=COALESCE($2::boolean, tenant_preferences.low_balance_enabled),
low_balance_threshold_micros=COALESCE($3::bigint, tenant_preferences.low_balance_threshold_micros),
spend_anomaly_enabled=COALESCE($4::boolean, tenant_preferences.spend_anomaly_enabled),
spend_anomaly_multiplier=COALESCE($5::bigint, tenant_preferences.spend_anomaly_multiplier),
spend_anomaly_min_micros=COALESCE($6::bigint, tenant_preferences.spend_anomaly_min_micros), updated_at=now()
RETURNING tenant_id::text, default_model, fallback_model, low_balance_enabled,
low_balance_threshold_micros, spend_anomaly_enabled,
COALESCE(spend_anomaly_multiplier,$8), COALESCE(spend_anomaly_min_micros,$9), updated_at`,
input.TenantID, input.LowBalanceEnabled, input.LowBalanceThresholdMicros, input.SpendAnomalyEnabled,
input.SpendAnomalyMultiplier, input.SpendAnomalyMinMicros, defaults.LowBalanceThresholdMicros,
defaults.SpendAnomalyMultiplier, defaults.SpendAnomalyMinMicros).Scan(
&result.TenantID, &defaultModel, &fallbackModel, &result.LowBalanceEnabled,
&result.LowBalanceThresholdMicros, &result.SpendAnomalyEnabled, &result.SpendAnomalyMultiplier,
&result.SpendAnomalyMinMicros, &updatedAt); err != nil {
return TenantPreferences{}, fmt.Errorf("save billing preferences: %w", err)
}
if defaultModel != nil {
result.DefaultModel = *defaultModel
}
if fallbackModel != nil {
result.FallbackModel = *fallbackModel
}
result.UpdatedAt = &updatedAt
if err := tx.Commit(ctx); err != nil {
return TenantPreferences{}, err
}
return result, nil
}
|
