Files
TokenLens/NativeTokenLens/Sources/TokenLensCore/UsageSummary.swift

331 lines
12 KiB
Swift

import Foundation
public struct UsageSummaryAccumulator {
private let now: Date
private var calendar: Calendar
private let today: Date
private let month: DateComponents
private let trendWindows: [TrendMode: TrendWindow]
private var providerTotals: [Provider: TokenBucket]
private var todayProviderTotals: [Provider: TokenBucket]
private var dailyBuckets: [Date: [Provider: Int]] = [:]
private var dailyDetails: [Date: DailyUsageDetail] = [:]
private var trendBuckets: [TrendMode: [Date: [Provider: Int]]] = [:]
private var todayTokens = 0
private var monthTokens = 0
private var totalTokens = 0
private var cachedTokens = 0
private var sessions = Set<String>()
public init(
now: Date = Date(),
calendar baseCalendar: Calendar = Calendar.current
) {
self.now = now
var calendar = baseCalendar
calendar.firstWeekday = 2
self.calendar = calendar
today = calendar.startOfDay(for: now)
month = calendar.dateComponents([.year, .month], from: now)
providerTotals = Dictionary(uniqueKeysWithValues: Provider.allCases.map {
($0, TokenBucket(provider: $0))
})
todayProviderTotals = Dictionary(uniqueKeysWithValues: Provider.allCases.map {
($0, TokenBucket(provider: $0))
})
trendWindows = Dictionary(uniqueKeysWithValues: TrendMode.allCases.map { mode in
let reference = mode.periodStart(for: now, calendar: calendar)
return (mode, TrendWindow(
reference: reference,
start: mode.startDate(reference: reference, calendar: calendar),
component: mode.calendarComponent
))
})
}
public mutating func add(_ record: UsageRecord) {
add(
provider: record.provider,
sourcePath: record.sourcePath,
timestamp: record.timestamp,
sessionID: record.sessionID,
inputTokens: record.inputTokens,
outputTokens: record.outputTokens,
cachedTokens: record.cachedTokens,
reasoningTokens: record.reasoningTokens,
toolTokens: record.toolTokens,
totalTokens: record.totalTokens
)
}
public mutating func add(
provider: Provider,
sourcePath: String,
timestamp: Date,
sessionID: String,
inputTokens: Int,
outputTokens: Int,
cachedTokens: Int,
reasoningTokens: Int,
toolTokens: Int,
totalTokens: Int
) {
self.totalTokens += totalTokens
self.cachedTokens += cachedTokens
sessions.insert(sessionID.isEmpty ? sourcePath : sessionID)
providerTotals[provider, default: TokenBucket(provider: provider)].add(
inputTokens: inputTokens,
outputTokens: outputTokens,
cachedTokens: cachedTokens,
reasoningTokens: reasoningTokens,
toolTokens: toolTokens,
totalTokens: totalTokens
)
let recordDay = calendar.startOfDay(for: timestamp)
dailyBuckets[recordDay, default: Provider.zeroTokenMap][provider, default: 0] += totalTokens
if dailyDetails[recordDay] == nil {
dailyDetails[recordDay] = DailyUsageDetail(date: recordDay)
}
dailyDetails[recordDay]?.add(
provider: provider,
inputTokens: inputTokens,
outputTokens: outputTokens,
cachedTokens: cachedTokens,
totalTokens: totalTokens
)
if recordDay == today {
todayTokens += totalTokens
todayProviderTotals[provider, default: TokenBucket(provider: provider)].add(
inputTokens: inputTokens,
outputTokens: outputTokens,
cachedTokens: cachedTokens,
reasoningTokens: reasoningTokens,
toolTokens: toolTokens,
totalTokens: totalTokens
)
}
let recordMonth = calendar.dateComponents([.year, .month], from: timestamp)
if recordMonth.year == month.year && recordMonth.month == month.month {
monthTokens += totalTokens
}
for mode in TrendMode.allCases {
guard let window = trendWindows[mode] else { continue }
let period = mode.periodStart(for: timestamp, calendar: calendar)
guard period >= window.start && period <= window.reference else { continue }
trendBuckets[mode, default: [:]][period, default: Provider.zeroTokenMap][provider, default: 0] += totalTokens
}
}
public func makeSummary() -> UsageSummary {
let dailyTrend = dailyBuckets
.sorted { $0.key < $1.key }
.suffix(30)
.map { DailyPoint(date: $0.key, values: $0.value) }
let sortedDailyDetails = dailyDetails.values.sorted { $0.date > $1.date }
let trendPointsByMode = Dictionary(uniqueKeysWithValues: TrendMode.allCases.map { mode in
(mode, makeTrendPoints(mode: mode))
})
let toolRows = Provider.allCases.compactMap { provider -> ToolRow? in
guard let bucket = providerTotals[provider], bucket.totalTokens > 0 else { return nil }
let trendTokens = dailyTrend.map { $0.values[provider, default: 0] }
return ToolRow(
provider: provider,
inputTokens: bucket.inputTokens,
outputTokens: bucket.outputTokens,
cachedTokens: bucket.cachedTokens,
totalTokens: bucket.totalTokens,
trendTokens: trendTokens
)
}
.sorted { $0.totalTokens > $1.totalTokens }
let cacheHitRate = totalTokens > 0 ? Int((Double(cachedTokens) / Double(totalTokens) * 100).rounded()) : 0
let cards = SummaryCards(
todayTokens: todayTokens,
monthTokens: monthTokens,
totalTokens: totalTokens,
cacheHitRate: cacheHitRate,
sessionCount: sessions.count
)
return UsageSummary(
generatedAt: now,
records: [],
cards: cards,
providerTotals: providerTotals,
todayProviderTotals: todayProviderTotals,
dailyTrend: Array(dailyTrend),
trendPointsByMode: trendPointsByMode,
dailyDetails: sortedDailyDetails,
toolRows: toolRows,
insights: UsageSummary.makeInsights(
providerTotals: providerTotals,
todayTokens: todayTokens,
cacheHitRate: cacheHitRate
)
)
}
private func makeTrendPoints(mode: TrendMode) -> [DailyPoint] {
guard let window = trendWindows[mode] else { return [] }
let buckets = trendBuckets[mode, default: [:]]
var points: [DailyPoint] = []
var cursor = window.start
while cursor <= window.reference {
points.append(DailyPoint(date: cursor, values: buckets[cursor, default: Provider.zeroTokenMap]))
guard let next = calendar.date(byAdding: window.component, value: 1, to: cursor) else { break }
cursor = next
}
return points
}
}
private struct TrendWindow {
let reference: Date
let start: Date
let component: Calendar.Component
}
public extension UsageSummary {
static func make(
records: [UsageRecord],
now: Date = Date(),
calendar baseCalendar: Calendar = Calendar.current
) -> UsageSummary {
var accumulator = UsageSummaryAccumulator(now: now, calendar: baseCalendar)
for record in records {
accumulator.add(record)
}
return accumulator.makeSummary()
}
static func makeInsights(
providerTotals: [Provider: TokenBucket],
todayTokens: Int,
cacheHitRate: Int
) -> [Insight] {
let top = providerTotals.values
.filter { $0.totalTokens > 0 }
.sorted { $0.totalTokens > $1.totalTokens }
.first
var insights: [Insight] = []
if let top, let provider = top.provider {
insights.append(Insight(
tone: .warning,
title: "\(provider.rawValue) 是当前主要用量来源",
message: "已从本地日志统计 \(TokenFormatter.format(top.totalTokens)) Tokens。"
))
}
insights.append(Insight(
tone: .positive,
title: "检测到缓存 Tokens",
message: "当前 \(cacheHitRate)% 的统计用量来自缓存上下文。"
))
insights.append(Insight(
tone: .accent,
title: "今日用量快照已更新",
message: "当前本地日期已统计 \(TokenFormatter.format(todayTokens)) Tokens。"
))
return insights
}
func trendPoints(
mode: TrendMode,
calendar baseCalendar: Calendar = Calendar.current
) -> [DailyPoint] {
if let points = trendPointsByMode[mode] {
return points
}
return []
}
func dailyUsageDetails(calendar baseCalendar: Calendar = Calendar.current) -> [DailyUsageDetail] {
dailyDetails
}
func updatingGeneratedAt(_ date: Date) -> UsageSummary {
UsageSummary(
generatedAt: date,
records: records,
cards: cards,
providerTotals: providerTotals,
todayProviderTotals: todayProviderTotals,
dailyTrend: dailyTrend,
trendPointsByMode: trendPointsByMode,
dailyDetails: dailyDetails,
toolRows: toolRows,
insights: insights
)
}
}
extension Provider {
static var zeroTokenMap: [Provider: Int] {
Dictionary(uniqueKeysWithValues: Provider.allCases.map { ($0, 0) })
}
}
extension TrendMode {
var calendarComponent: Calendar.Component {
switch self {
case .daily:
return .hour
case .weekly:
return .day
case .monthly:
return .day
case .yearly:
return .month
}
}
var periodColumn: String {
switch self {
case .daily:
return "hour_start"
case .weekly, .monthly:
return "day_start"
case .yearly:
return "month_start"
}
}
func periodStart(for date: Date, calendar: Calendar) -> Date {
switch self {
case .daily:
let components = calendar.dateComponents([.year, .month, .day, .hour], from: date)
return calendar.date(from: components) ?? calendar.startOfDay(for: date)
case .weekly:
return calendar.startOfDay(for: date)
case .monthly:
return calendar.startOfDay(for: date)
case .yearly:
let components = calendar.dateComponents([.year, .month], from: date)
return calendar.date(from: components) ?? calendar.startOfDay(for: date)
}
}
func startDate(reference: Date, calendar: Calendar) -> Date {
switch self {
case .daily:
return calendar.startOfDay(for: reference)
case .weekly:
return calendar.dateInterval(of: .weekOfYear, for: reference)?.start ?? calendar.startOfDay(for: reference)
case .monthly:
let components = calendar.dateComponents([.year, .month], from: reference)
return calendar.date(from: components) ?? calendar.startOfDay(for: reference)
case .yearly:
let components = calendar.dateComponents([.year], from: reference)
return calendar.date(from: components) ?? calendar.startOfDay(for: reference)
}
}
}