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package controlplane
import (
"context"
"fmt"
"strings"
"time"
)
// UsageAnalytics aggregates the immutable usage ledger for the developer
// console. Queries run outside the inference path and are scoped by the
// caller's tenant before reaching this store.
func (s *Store) UsageAnalytics(ctx context.Context, query UsageQuery) (UsageAnalytics, error) {
to := query.To
if to.IsZero() {
to = time.Now().UTC()
}
from := query.From
if from.IsZero() {
from = to.Add(-30 * 24 * time.Hour)
}
if !to.After(from) {
return UsageAnalytics{}, fmt.Errorf("usage analytics range must be positive")
}
result := UsageAnalytics{RangeStart: from, RangeEnd: to, Models: make([]UsageModelAnalytics, 0), Providers: make([]UsageProviderAnalytics, 0)}
modelPrevious, err := s.usageModelCharges(ctx, query, from.Add(-to.Sub(from)), from)
if err != nil {
return UsageAnalytics{}, err
}
models, err := s.usageModelAnalytics(ctx, query, from, to)
if err != nil {
return UsageAnalytics{}, err
}
for index := range models {
models[index].PreviousChargedMicros = modelPrevious[models[index].PublicModel]
models[index].ChargeChangePercent = chargeChange(models[index].ChargedMicros, models[index].PreviousChargedMicros)
}
providerPrevious, err := s.usageProviderCharges(ctx, query, from.Add(-to.Sub(from)), from)
if err != nil {
return UsageAnalytics{}, err
}
providers, err := s.usageProviderAnalytics(ctx, query, from, to)
if err != nil {
return UsageAnalytics{}, err
}
for index := range providers {
providers[index].PreviousChargedMicros = providerPrevious[providers[index].ProviderID]
providers[index].ChargeChangePercent = chargeChange(providers[index].ChargedMicros, providers[index].PreviousChargedMicros)
}
result.Models = models
result.Providers = providers
return result, nil
}
func chargeChange(current, previous int64) *float64 {
if previous == 0 {
return nil
}
value := (float64(current) - float64(previous)) / float64(previous) * 100
return &value
}
func analyticsUsageWhere(query UsageQuery, from, to time.Time) (string, []any) {
where := []string{"1=1"}
args := make([]any, 0, 12)
index := 1
for _, item := range []struct {
value string
clause string
}{
{query.TenantID, "e.tenant_id=$"},
{query.ProjectID, "e.project_id=$"},
{query.KeyID, "e.key_id=$"},
{query.Model, "e.public_model=$"},
{query.RequestID, "e.request_id=$"},
} {
if strings.TrimSpace(item.value) != "" {
where = append(where, item.clause+fmt.Sprint(index))
args = append(args, item.value)
index++
}
}
for _, item := range []struct {
value string
clause string
}{
{query.Protocol, "e.protocol=$"},
{query.ErrorType, "e.error_type=$"},
} {
if strings.TrimSpace(item.value) != "" {
where = append(where, item.clause+fmt.Sprint(index))
args = append(args, item.value)
index++
}
}
if strings.TrimSpace(query.Provider) != "" {
where = append(where, "EXISTS (SELECT 1 FROM providers filter_provider WHERE filter_provider.id::text=e.provider_id AND filter_provider.slug=$"+fmt.Sprint(index)+")")
args = append(args, query.Provider)
index++
}
if query.Stream != nil {
where = append(where, "e.stream=$"+fmt.Sprint(index))
args = append(args, *query.Stream)
index++
}
if query.Status == "success" {
where = append(where, "e.success=TRUE")
} else if query.Status == "error" {
where = append(where, "e.success=FALSE")
}
if !from.IsZero() {
where = append(where, "e.started_at >= $"+fmt.Sprint(index))
args = append(args, from)
index++
}
if !to.IsZero() {
where = append(where, "e.started_at < $"+fmt.Sprint(index))
args = append(args, to)
}
return strings.Join(where, " AND "), args
}
func (s *Store) usageModelAnalytics(ctx context.Context, query UsageQuery, from, to time.Time) ([]UsageModelAnalytics, error) {
where, args := analyticsUsageWhere(query, from, to)
rows, err := s.db.Query(ctx, `SELECT e.public_model, count(*), count(*) FILTER (WHERE e.success), count(*) FILTER (WHERE NOT e.success),
count(DISTINCT NULLIF(e.provider_id,'')), COALESCE(sum(e.input_tokens),0), COALESCE(sum(e.output_tokens),0),
COALESCE(sum(e.total_tokens),0), COALESCE(sum(e.cache_read_input_tokens),0), COALESCE(sum(e.cache_creation_input_tokens),0),
COALESCE(sum(e.charged_micros),0), COALESCE(sum(e.uncollected_micros),0), count(*) FILTER (WHERE e.metering_status='missing'),
COALESCE(round(avg(e.duration_ms)),0)::bigint, COALESCE(round(percentile_cont(0.95) WITHIN GROUP (ORDER BY e.duration_ms)),0)::bigint
FROM usage_events e WHERE `+where+` GROUP BY e.public_model ORDER BY sum(e.charged_micros) DESC, e.public_model`, args...)
if err != nil {
return nil, fmt.Errorf("query usage model analytics: %w", err)
}
defer rows.Close()
result := make([]UsageModelAnalytics, 0)
for rows.Next() {
var item UsageModelAnalytics
if err := rows.Scan(&item.PublicModel, &item.RequestCount, &item.SuccessfulRequests, &item.ErrorCount, &item.ProviderCount,
&item.InputTokens, &item.OutputTokens, &item.TotalTokens, &item.CacheReadInputTokens, &item.CacheCreationInputTokens,
&item.ChargedMicros, &item.UncollectedMicros, &item.MissingUsageRequests, &item.AverageDurationMS, &item.P95DurationMS); err != nil {
return nil, fmt.Errorf("scan usage model analytics: %w", err)
}
result = append(result, item)
}
return result, rows.Err()
}
func (s *Store) usageModelCharges(ctx context.Context, query UsageQuery, from, to time.Time) (map[string]int64, error) {
where, args := analyticsUsageWhere(query, from, to)
rows, err := s.db.Query(ctx, `SELECT e.public_model, COALESCE(sum(e.charged_micros),0)
FROM usage_events e WHERE `+where+` GROUP BY e.public_model`, args...)
if err != nil {
return nil, fmt.Errorf("query previous model charges: %w", err)
}
defer rows.Close()
result := make(map[string]int64)
for rows.Next() {
var model string
var charged int64
if err := rows.Scan(&model, &charged); err != nil {
return nil, fmt.Errorf("scan previous model charges: %w", err)
}
result[model] = charged
}
return result, rows.Err()
}
func (s *Store) usageProviderAnalytics(ctx context.Context, query UsageQuery, from, to time.Time) ([]UsageProviderAnalytics, error) {
where, args := analyticsUsageWhere(query, from, to)
rows, err := s.db.Query(ctx, `SELECT COALESCE(e.provider_id,''), COALESCE(NULLIF(p.name,''),'Unassigned'), COALESCE(p.wire_api,''),
count(*), count(*) FILTER (WHERE e.success), count(*) FILTER (WHERE NOT e.success), count(DISTINCT e.public_model),
COALESCE(sum(e.input_tokens),0), COALESCE(sum(e.output_tokens),0), COALESCE(sum(e.total_tokens),0),
COALESCE(sum(e.cache_read_input_tokens),0), COALESCE(sum(e.cache_creation_input_tokens),0), COALESCE(sum(e.charged_micros),0),
COALESCE(sum(e.uncollected_micros),0), count(*) FILTER (WHERE e.metering_status='missing'), COALESCE(round(avg(e.duration_ms)),0)::bigint,
COALESCE(round(percentile_cont(0.95) WITHIN GROUP (ORDER BY e.duration_ms)),0)::bigint
FROM usage_events e LEFT JOIN providers p ON p.id::text=e.provider_id WHERE `+where+`
GROUP BY e.provider_id, p.name, p.wire_api ORDER BY sum(e.charged_micros) DESC, COALESCE(NULLIF(p.name,''),'Unassigned')`, args...)
if err != nil {
return nil, fmt.Errorf("query usage provider analytics: %w", err)
}
defer rows.Close()
result := make([]UsageProviderAnalytics, 0)
for rows.Next() {
var item UsageProviderAnalytics
if err := rows.Scan(&item.ProviderID, &item.ProviderName, &item.WireAPI, &item.RequestCount, &item.SuccessfulRequests, &item.ErrorCount,
&item.ModelCount, &item.InputTokens, &item.OutputTokens, &item.TotalTokens, &item.CacheReadInputTokens, &item.CacheCreationInputTokens,
&item.ChargedMicros, &item.UncollectedMicros, &item.MissingUsageRequests, &item.AverageDurationMS, &item.P95DurationMS); err != nil {
return nil, fmt.Errorf("scan usage provider analytics: %w", err)
}
result = append(result, item)
}
return result, rows.Err()
}
func (s *Store) usageProviderCharges(ctx context.Context, query UsageQuery, from, to time.Time) (map[string]int64, error) {
where, args := analyticsUsageWhere(query, from, to)
rows, err := s.db.Query(ctx, `SELECT COALESCE(e.provider_id,''), COALESCE(sum(e.charged_micros),0)
FROM usage_events e WHERE `+where+` GROUP BY e.provider_id`, args...)
if err != nil {
return nil, fmt.Errorf("query previous provider charges: %w", err)
}
defer rows.Close()
result := make(map[string]int64)
for rows.Next() {
var providerID string
var charged int64
if err := rows.Scan(&providerID, &charged); err != nil {
return nil, fmt.Errorf("scan previous provider charges: %w", err)
}
result[providerID] = charged
}
return result, rows.Err()
}
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