mirror of
https://github.com/SagerNet/sing-box.git
synced 2026-04-14 12:48:28 +10:00
707 lines
20 KiB
Go
707 lines
20 KiB
Go
package ccm
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import (
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"encoding/json"
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"fmt"
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"math"
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"os"
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"regexp"
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"sync"
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"time"
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"github.com/sagernet/sing-box/log"
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E "github.com/sagernet/sing/common/exceptions"
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)
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type UsageStats struct {
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RequestCount int `json:"request_count"`
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MessagesCount int `json:"messages_count"`
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InputTokens int64 `json:"input_tokens"`
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OutputTokens int64 `json:"output_tokens"`
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CacheReadInputTokens int64 `json:"cache_read_input_tokens"`
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CacheCreationInputTokens int64 `json:"cache_creation_input_tokens"`
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CacheCreation5MinuteInputTokens int64 `json:"cache_creation_5m_input_tokens,omitempty"`
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CacheCreation1HourInputTokens int64 `json:"cache_creation_1h_input_tokens,omitempty"`
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}
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type CostCombination struct {
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Model string `json:"model"`
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ContextWindow int `json:"context_window"`
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WeekStartUnix int64 `json:"week_start_unix,omitempty"`
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Total UsageStats `json:"total"`
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ByUser map[string]UsageStats `json:"by_user"`
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}
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type AggregatedUsage struct {
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LastUpdated time.Time `json:"last_updated"`
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Combinations []CostCombination `json:"combinations"`
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access sync.Mutex
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filePath string
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logger log.ContextLogger
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lastSaveTime time.Time
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pendingSave bool
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saveTimer *time.Timer
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saveAccess sync.Mutex
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}
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type UsageStatsJSON struct {
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RequestCount int `json:"request_count"`
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MessagesCount int `json:"messages_count"`
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InputTokens int64 `json:"input_tokens"`
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OutputTokens int64 `json:"output_tokens"`
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CacheReadInputTokens int64 `json:"cache_read_input_tokens"`
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CacheCreationInputTokens int64 `json:"cache_creation_input_tokens"`
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CacheCreation5MinuteInputTokens int64 `json:"cache_creation_5m_input_tokens,omitempty"`
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CacheCreation1HourInputTokens int64 `json:"cache_creation_1h_input_tokens,omitempty"`
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CostUSD float64 `json:"cost_usd"`
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}
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type CostCombinationJSON struct {
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Model string `json:"model"`
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ContextWindow int `json:"context_window"`
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WeekStartUnix int64 `json:"week_start_unix,omitempty"`
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Total UsageStatsJSON `json:"total"`
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ByUser map[string]UsageStatsJSON `json:"by_user"`
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}
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type CostsSummaryJSON struct {
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TotalUSD float64 `json:"total_usd"`
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ByUser map[string]float64 `json:"by_user"`
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ByWeek map[string]float64 `json:"by_week,omitempty"`
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ByUserAndWeek map[string]map[string]float64 `json:"by_user_and_week,omitempty"`
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}
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type AggregatedUsageJSON struct {
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LastUpdated time.Time `json:"last_updated"`
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Costs CostsSummaryJSON `json:"costs"`
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Combinations []CostCombinationJSON `json:"combinations"`
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}
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type WeeklyCycleHint struct {
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WindowMinutes int64
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ResetAt time.Time
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}
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type ModelPricing struct {
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InputPrice float64
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OutputPrice float64
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CacheReadPrice float64
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CacheWritePrice5Minute float64
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CacheWritePrice1Hour float64
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}
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type modelFamily struct {
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pattern *regexp.Regexp
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standardPricing ModelPricing
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premiumPricing *ModelPricing
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}
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var (
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opus46StandardPricing = ModelPricing{
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InputPrice: 5.0,
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OutputPrice: 25.0,
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CacheReadPrice: 0.5,
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CacheWritePrice5Minute: 6.25,
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CacheWritePrice1Hour: 10.0,
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}
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opus46PremiumPricing = ModelPricing{
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InputPrice: 10.0,
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OutputPrice: 37.5,
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CacheReadPrice: 1.0,
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CacheWritePrice5Minute: 12.5,
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CacheWritePrice1Hour: 20.0,
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}
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opus45Pricing = ModelPricing{
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InputPrice: 5.0,
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OutputPrice: 25.0,
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CacheReadPrice: 0.5,
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CacheWritePrice5Minute: 6.25,
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CacheWritePrice1Hour: 10.0,
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}
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opus4Pricing = ModelPricing{
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InputPrice: 15.0,
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OutputPrice: 75.0,
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CacheReadPrice: 1.5,
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CacheWritePrice5Minute: 18.75,
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CacheWritePrice1Hour: 30.0,
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}
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sonnet46StandardPricing = ModelPricing{
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InputPrice: 3.0,
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OutputPrice: 15.0,
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CacheReadPrice: 0.3,
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CacheWritePrice5Minute: 3.75,
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CacheWritePrice1Hour: 6.0,
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}
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sonnet46PremiumPricing = ModelPricing{
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InputPrice: 6.0,
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OutputPrice: 22.5,
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CacheReadPrice: 0.6,
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CacheWritePrice5Minute: 7.5,
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CacheWritePrice1Hour: 12.0,
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}
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sonnet45StandardPricing = ModelPricing{
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InputPrice: 3.0,
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OutputPrice: 15.0,
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CacheReadPrice: 0.3,
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CacheWritePrice5Minute: 3.75,
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CacheWritePrice1Hour: 6.0,
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}
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sonnet45PremiumPricing = ModelPricing{
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InputPrice: 6.0,
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OutputPrice: 22.5,
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CacheReadPrice: 0.6,
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CacheWritePrice5Minute: 7.5,
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CacheWritePrice1Hour: 12.0,
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}
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sonnet4StandardPricing = ModelPricing{
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InputPrice: 3.0,
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OutputPrice: 15.0,
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CacheReadPrice: 0.3,
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CacheWritePrice5Minute: 3.75,
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CacheWritePrice1Hour: 6.0,
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}
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sonnet4PremiumPricing = ModelPricing{
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InputPrice: 6.0,
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OutputPrice: 22.5,
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CacheReadPrice: 0.6,
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CacheWritePrice5Minute: 7.5,
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CacheWritePrice1Hour: 12.0,
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}
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sonnet37Pricing = ModelPricing{
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InputPrice: 3.0,
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OutputPrice: 15.0,
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CacheReadPrice: 0.3,
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CacheWritePrice5Minute: 3.75,
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CacheWritePrice1Hour: 6.0,
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}
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sonnet35Pricing = ModelPricing{
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InputPrice: 3.0,
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OutputPrice: 15.0,
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CacheReadPrice: 0.3,
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CacheWritePrice5Minute: 3.75,
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CacheWritePrice1Hour: 6.0,
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}
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haiku45Pricing = ModelPricing{
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InputPrice: 1.0,
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OutputPrice: 5.0,
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CacheReadPrice: 0.1,
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CacheWritePrice5Minute: 1.25,
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CacheWritePrice1Hour: 2.0,
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}
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haiku4Pricing = ModelPricing{
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InputPrice: 1.0,
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OutputPrice: 5.0,
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CacheReadPrice: 0.1,
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CacheWritePrice5Minute: 1.25,
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CacheWritePrice1Hour: 2.0,
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}
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haiku35Pricing = ModelPricing{
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InputPrice: 0.8,
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OutputPrice: 4.0,
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CacheReadPrice: 0.08,
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CacheWritePrice5Minute: 1.0,
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CacheWritePrice1Hour: 1.6,
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}
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haiku3Pricing = ModelPricing{
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InputPrice: 0.25,
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OutputPrice: 1.25,
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CacheReadPrice: 0.03,
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CacheWritePrice5Minute: 0.3,
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CacheWritePrice1Hour: 0.5,
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}
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opus3Pricing = ModelPricing{
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InputPrice: 15.0,
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OutputPrice: 75.0,
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CacheReadPrice: 1.5,
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CacheWritePrice5Minute: 18.75,
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CacheWritePrice1Hour: 30.0,
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}
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modelFamilies = []modelFamily{
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{
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pattern: regexp.MustCompile(`^claude-opus-4-6(?:-|$)`),
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standardPricing: opus46StandardPricing,
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premiumPricing: &opus46PremiumPricing,
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},
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{
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pattern: regexp.MustCompile(`^claude-opus-4-5(?:-|$)`),
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standardPricing: opus45Pricing,
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premiumPricing: nil,
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},
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{
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pattern: regexp.MustCompile(`^claude-(?:opus-4(?:-|$)|4-opus-)`),
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standardPricing: opus4Pricing,
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premiumPricing: nil,
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},
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{
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pattern: regexp.MustCompile(`^claude-(?:opus-3(?:-|$)|3-opus-)`),
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standardPricing: opus3Pricing,
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premiumPricing: nil,
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},
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{
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pattern: regexp.MustCompile(`^claude-(?:sonnet-4-6(?:-|$)|4-6-sonnet-)`),
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standardPricing: sonnet46StandardPricing,
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premiumPricing: &sonnet46PremiumPricing,
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},
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{
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pattern: regexp.MustCompile(`^claude-(?:sonnet-4-5(?:-|$)|4-5-sonnet-)`),
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standardPricing: sonnet45StandardPricing,
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premiumPricing: &sonnet45PremiumPricing,
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},
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{
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pattern: regexp.MustCompile(`^claude-(?:sonnet-4(?:-|$)|4-sonnet-)`),
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standardPricing: sonnet4StandardPricing,
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premiumPricing: &sonnet4PremiumPricing,
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},
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{
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pattern: regexp.MustCompile(`^claude-3-7-sonnet(?:-|$)`),
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standardPricing: sonnet37Pricing,
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premiumPricing: nil,
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},
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{
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pattern: regexp.MustCompile(`^claude-3-5-sonnet(?:-|$)`),
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standardPricing: sonnet35Pricing,
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premiumPricing: nil,
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},
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{
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pattern: regexp.MustCompile(`^claude-(?:haiku-4-5(?:-|$)|4-5-haiku-)`),
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standardPricing: haiku45Pricing,
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premiumPricing: nil,
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},
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{
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pattern: regexp.MustCompile(`^claude-haiku-4(?:-|$)`),
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standardPricing: haiku4Pricing,
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premiumPricing: nil,
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},
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{
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pattern: regexp.MustCompile(`^claude-3-5-haiku(?:-|$)`),
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standardPricing: haiku35Pricing,
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premiumPricing: nil,
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},
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{
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pattern: regexp.MustCompile(`^claude-3-haiku(?:-|$)`),
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standardPricing: haiku3Pricing,
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premiumPricing: nil,
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},
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}
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)
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func getPricing(model string, contextWindow int) ModelPricing {
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isPremium := contextWindow >= contextWindowPremium
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for _, family := range modelFamilies {
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if family.pattern.MatchString(model) {
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if isPremium && family.premiumPricing != nil {
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return *family.premiumPricing
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}
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return family.standardPricing
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}
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}
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return sonnet4StandardPricing
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}
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func calculateCost(stats UsageStats, model string, contextWindow int) float64 {
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pricing := getPricing(model, contextWindow)
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cacheCreationCost := 0.0
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if stats.CacheCreation5MinuteInputTokens > 0 || stats.CacheCreation1HourInputTokens > 0 {
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cacheCreationCost = float64(stats.CacheCreation5MinuteInputTokens)*pricing.CacheWritePrice5Minute +
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float64(stats.CacheCreation1HourInputTokens)*pricing.CacheWritePrice1Hour
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} else {
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// Backward compatibility for usage files generated before TTL split tracking.
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cacheCreationCost = float64(stats.CacheCreationInputTokens) * pricing.CacheWritePrice5Minute
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}
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cost := (float64(stats.InputTokens)*pricing.InputPrice +
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float64(stats.OutputTokens)*pricing.OutputPrice +
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float64(stats.CacheReadInputTokens)*pricing.CacheReadPrice +
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cacheCreationCost) / 1_000_000
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return math.Round(cost*100) / 100
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}
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func roundCost(cost float64) float64 {
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return math.Round(cost*100) / 100
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}
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func normalizeCombinations(combinations []CostCombination) {
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for index := range combinations {
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if combinations[index].ByUser == nil {
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combinations[index].ByUser = make(map[string]UsageStats)
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}
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}
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}
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func addUsageToCombinations(
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combinations *[]CostCombination,
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model string,
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contextWindow int,
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weekStartUnix int64,
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messagesCount int,
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inputTokens, outputTokens, cacheReadTokens, cacheCreationTokens, cacheCreation5MinuteTokens, cacheCreation1HourTokens int64,
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user string,
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) {
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var matchedCombination *CostCombination
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for index := range *combinations {
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combination := &(*combinations)[index]
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if combination.Model == model && combination.ContextWindow == contextWindow && combination.WeekStartUnix == weekStartUnix {
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matchedCombination = combination
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break
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}
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}
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if matchedCombination == nil {
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newCombination := CostCombination{
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Model: model,
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ContextWindow: contextWindow,
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WeekStartUnix: weekStartUnix,
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Total: UsageStats{},
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ByUser: make(map[string]UsageStats),
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}
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*combinations = append(*combinations, newCombination)
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matchedCombination = &(*combinations)[len(*combinations)-1]
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}
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if cacheCreationTokens == 0 {
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cacheCreationTokens = cacheCreation5MinuteTokens + cacheCreation1HourTokens
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}
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matchedCombination.Total.RequestCount++
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matchedCombination.Total.MessagesCount += messagesCount
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matchedCombination.Total.InputTokens += inputTokens
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matchedCombination.Total.OutputTokens += outputTokens
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matchedCombination.Total.CacheReadInputTokens += cacheReadTokens
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matchedCombination.Total.CacheCreationInputTokens += cacheCreationTokens
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matchedCombination.Total.CacheCreation5MinuteInputTokens += cacheCreation5MinuteTokens
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matchedCombination.Total.CacheCreation1HourInputTokens += cacheCreation1HourTokens
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if user != "" {
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userStats := matchedCombination.ByUser[user]
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userStats.RequestCount++
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userStats.MessagesCount += messagesCount
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userStats.InputTokens += inputTokens
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userStats.OutputTokens += outputTokens
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userStats.CacheReadInputTokens += cacheReadTokens
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userStats.CacheCreationInputTokens += cacheCreationTokens
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userStats.CacheCreation5MinuteInputTokens += cacheCreation5MinuteTokens
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userStats.CacheCreation1HourInputTokens += cacheCreation1HourTokens
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matchedCombination.ByUser[user] = userStats
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}
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}
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func buildCombinationJSON(combinations []CostCombination, aggregateUserCosts map[string]float64) ([]CostCombinationJSON, float64) {
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result := make([]CostCombinationJSON, len(combinations))
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var totalCost float64
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for index, combination := range combinations {
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combinationTotalCost := calculateCost(combination.Total, combination.Model, combination.ContextWindow)
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totalCost += combinationTotalCost
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combinationJSON := CostCombinationJSON{
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Model: combination.Model,
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ContextWindow: combination.ContextWindow,
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WeekStartUnix: combination.WeekStartUnix,
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Total: UsageStatsJSON{
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RequestCount: combination.Total.RequestCount,
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MessagesCount: combination.Total.MessagesCount,
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InputTokens: combination.Total.InputTokens,
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OutputTokens: combination.Total.OutputTokens,
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CacheReadInputTokens: combination.Total.CacheReadInputTokens,
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CacheCreationInputTokens: combination.Total.CacheCreationInputTokens,
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CacheCreation5MinuteInputTokens: combination.Total.CacheCreation5MinuteInputTokens,
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CacheCreation1HourInputTokens: combination.Total.CacheCreation1HourInputTokens,
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CostUSD: combinationTotalCost,
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},
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ByUser: make(map[string]UsageStatsJSON),
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}
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for user, userStats := range combination.ByUser {
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userCost := calculateCost(userStats, combination.Model, combination.ContextWindow)
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if aggregateUserCosts != nil {
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aggregateUserCosts[user] += userCost
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}
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combinationJSON.ByUser[user] = UsageStatsJSON{
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RequestCount: userStats.RequestCount,
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MessagesCount: userStats.MessagesCount,
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InputTokens: userStats.InputTokens,
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OutputTokens: userStats.OutputTokens,
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CacheReadInputTokens: userStats.CacheReadInputTokens,
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CacheCreationInputTokens: userStats.CacheCreationInputTokens,
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CacheCreation5MinuteInputTokens: userStats.CacheCreation5MinuteInputTokens,
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CacheCreation1HourInputTokens: userStats.CacheCreation1HourInputTokens,
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CostUSD: userCost,
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}
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}
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result[index] = combinationJSON
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}
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return result, roundCost(totalCost)
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}
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func formatUTCOffsetLabel(timestamp time.Time) string {
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_, offsetSeconds := timestamp.Zone()
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sign := "+"
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if offsetSeconds < 0 {
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sign = "-"
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offsetSeconds = -offsetSeconds
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}
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offsetHours := offsetSeconds / 3600
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offsetMinutes := (offsetSeconds % 3600) / 60
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if offsetMinutes == 0 {
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return fmt.Sprintf("UTC%s%d", sign, offsetHours)
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}
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return fmt.Sprintf("UTC%s%d:%02d", sign, offsetHours, offsetMinutes)
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}
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func formatWeekStartKey(cycleStartAt time.Time) string {
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localCycleStart := cycleStartAt.In(time.Local)
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return fmt.Sprintf("%s %s", localCycleStart.Format("2006-01-02 15:04:05"), formatUTCOffsetLabel(localCycleStart))
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}
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func buildByWeekCost(combinations []CostCombination) map[string]float64 {
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byWeek := make(map[string]float64)
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for _, combination := range combinations {
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if combination.WeekStartUnix <= 0 {
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continue
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}
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weekStartAt := time.Unix(combination.WeekStartUnix, 0).UTC()
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weekKey := formatWeekStartKey(weekStartAt)
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byWeek[weekKey] += calculateCost(combination.Total, combination.Model, combination.ContextWindow)
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}
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for weekKey, weekCost := range byWeek {
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byWeek[weekKey] = roundCost(weekCost)
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}
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return byWeek
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}
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func buildByUserAndWeekCost(combinations []CostCombination) map[string]map[string]float64 {
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byUserAndWeek := make(map[string]map[string]float64)
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for _, combination := range combinations {
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if combination.WeekStartUnix <= 0 {
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continue
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}
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weekStartAt := time.Unix(combination.WeekStartUnix, 0).UTC()
|
|
weekKey := formatWeekStartKey(weekStartAt)
|
|
for user, userStats := range combination.ByUser {
|
|
userWeeks, exists := byUserAndWeek[user]
|
|
if !exists {
|
|
userWeeks = make(map[string]float64)
|
|
byUserAndWeek[user] = userWeeks
|
|
}
|
|
userWeeks[weekKey] += calculateCost(userStats, combination.Model, combination.ContextWindow)
|
|
}
|
|
}
|
|
for _, weekCosts := range byUserAndWeek {
|
|
for weekKey, cost := range weekCosts {
|
|
weekCosts[weekKey] = roundCost(cost)
|
|
}
|
|
}
|
|
return byUserAndWeek
|
|
}
|
|
|
|
func deriveWeekStartUnix(cycleHint *WeeklyCycleHint) int64 {
|
|
if cycleHint == nil || cycleHint.WindowMinutes <= 0 || cycleHint.ResetAt.IsZero() {
|
|
return 0
|
|
}
|
|
windowDuration := time.Duration(cycleHint.WindowMinutes) * time.Minute
|
|
return cycleHint.ResetAt.UTC().Add(-windowDuration).Unix()
|
|
}
|
|
|
|
func (u *AggregatedUsage) ToJSON() *AggregatedUsageJSON {
|
|
u.access.Lock()
|
|
defer u.access.Unlock()
|
|
|
|
result := &AggregatedUsageJSON{
|
|
LastUpdated: u.LastUpdated,
|
|
Costs: CostsSummaryJSON{
|
|
TotalUSD: 0,
|
|
ByUser: make(map[string]float64),
|
|
ByWeek: make(map[string]float64),
|
|
},
|
|
}
|
|
|
|
globalCombinationsJSON, totalCost := buildCombinationJSON(u.Combinations, result.Costs.ByUser)
|
|
result.Combinations = globalCombinationsJSON
|
|
result.Costs.TotalUSD = totalCost
|
|
result.Costs.ByWeek = buildByWeekCost(u.Combinations)
|
|
|
|
if len(result.Costs.ByWeek) == 0 {
|
|
result.Costs.ByWeek = nil
|
|
}
|
|
|
|
result.Costs.ByUserAndWeek = buildByUserAndWeekCost(u.Combinations)
|
|
if len(result.Costs.ByUserAndWeek) == 0 {
|
|
result.Costs.ByUserAndWeek = nil
|
|
}
|
|
|
|
for user, cost := range result.Costs.ByUser {
|
|
result.Costs.ByUser[user] = roundCost(cost)
|
|
}
|
|
|
|
return result
|
|
}
|
|
|
|
func (u *AggregatedUsage) Load() error {
|
|
u.access.Lock()
|
|
defer u.access.Unlock()
|
|
|
|
u.LastUpdated = time.Time{}
|
|
u.Combinations = nil
|
|
|
|
data, err := os.ReadFile(u.filePath)
|
|
if err != nil {
|
|
if os.IsNotExist(err) {
|
|
return nil
|
|
}
|
|
return err
|
|
}
|
|
|
|
var temp struct {
|
|
LastUpdated time.Time `json:"last_updated"`
|
|
Combinations []CostCombination `json:"combinations"`
|
|
}
|
|
|
|
err = json.Unmarshal(data, &temp)
|
|
if err != nil {
|
|
return err
|
|
}
|
|
|
|
u.LastUpdated = temp.LastUpdated
|
|
u.Combinations = temp.Combinations
|
|
normalizeCombinations(u.Combinations)
|
|
|
|
return nil
|
|
}
|
|
|
|
func (u *AggregatedUsage) Save() error {
|
|
jsonData := u.ToJSON()
|
|
|
|
data, err := json.MarshalIndent(jsonData, "", " ")
|
|
if err != nil {
|
|
return err
|
|
}
|
|
|
|
tmpFile := u.filePath + ".tmp"
|
|
err = os.WriteFile(tmpFile, data, 0o644)
|
|
if err != nil {
|
|
return err
|
|
}
|
|
defer os.Remove(tmpFile)
|
|
err = os.Rename(tmpFile, u.filePath)
|
|
if err == nil {
|
|
u.saveAccess.Lock()
|
|
u.lastSaveTime = time.Now()
|
|
u.saveAccess.Unlock()
|
|
}
|
|
return err
|
|
}
|
|
|
|
func (u *AggregatedUsage) AddUsage(
|
|
model string,
|
|
contextWindow int,
|
|
messagesCount int,
|
|
inputTokens, outputTokens, cacheReadTokens, cacheCreationTokens, cacheCreation5MinuteTokens, cacheCreation1HourTokens int64,
|
|
user string,
|
|
) error {
|
|
return u.AddUsageWithCycleHint(model, contextWindow, messagesCount, inputTokens, outputTokens, cacheReadTokens, cacheCreationTokens, cacheCreation5MinuteTokens, cacheCreation1HourTokens, user, time.Now(), nil)
|
|
}
|
|
|
|
func (u *AggregatedUsage) AddUsageWithCycleHint(
|
|
model string,
|
|
contextWindow int,
|
|
messagesCount int,
|
|
inputTokens, outputTokens, cacheReadTokens, cacheCreationTokens, cacheCreation5MinuteTokens, cacheCreation1HourTokens int64,
|
|
user string,
|
|
observedAt time.Time,
|
|
cycleHint *WeeklyCycleHint,
|
|
) error {
|
|
if model == "" {
|
|
return E.New("model cannot be empty")
|
|
}
|
|
if contextWindow <= 0 {
|
|
return E.New("contextWindow must be positive")
|
|
}
|
|
if observedAt.IsZero() {
|
|
observedAt = time.Now()
|
|
}
|
|
|
|
u.access.Lock()
|
|
defer u.access.Unlock()
|
|
|
|
u.LastUpdated = observedAt
|
|
weekStartUnix := deriveWeekStartUnix(cycleHint)
|
|
|
|
addUsageToCombinations(&u.Combinations, model, contextWindow, weekStartUnix, messagesCount, inputTokens, outputTokens, cacheReadTokens, cacheCreationTokens, cacheCreation5MinuteTokens, cacheCreation1HourTokens, user)
|
|
|
|
u.scheduleSave()
|
|
|
|
return nil
|
|
}
|
|
|
|
func (u *AggregatedUsage) scheduleSave() {
|
|
const saveInterval = time.Minute
|
|
|
|
u.saveAccess.Lock()
|
|
defer u.saveAccess.Unlock()
|
|
|
|
timeSinceLastSave := time.Since(u.lastSaveTime)
|
|
|
|
if timeSinceLastSave >= saveInterval {
|
|
go u.saveAsync()
|
|
return
|
|
}
|
|
|
|
if u.pendingSave {
|
|
return
|
|
}
|
|
|
|
u.pendingSave = true
|
|
remainingTime := saveInterval - timeSinceLastSave
|
|
|
|
u.saveTimer = time.AfterFunc(remainingTime, func() {
|
|
u.saveAccess.Lock()
|
|
u.pendingSave = false
|
|
u.saveAccess.Unlock()
|
|
u.saveAsync()
|
|
})
|
|
}
|
|
|
|
func (u *AggregatedUsage) saveAsync() {
|
|
err := u.Save()
|
|
if err != nil {
|
|
if u.logger != nil {
|
|
u.logger.Error("save usage statistics: ", err)
|
|
}
|
|
}
|
|
}
|
|
|
|
func (u *AggregatedUsage) cancelPendingSave() {
|
|
u.saveAccess.Lock()
|
|
defer u.saveAccess.Unlock()
|
|
|
|
if u.saveTimer != nil {
|
|
u.saveTimer.Stop()
|
|
u.saveTimer = nil
|
|
}
|
|
u.pendingSave = false
|
|
}
|