import Chartsimport CodexBarCoreimport SwiftUI @MainActorstruct CCUsageCostChartMenuView: View {    private struct Point: Identifiable {        let id: String        let date: Date        let costUSD: Double        let totalTokens: Int?         init(date: Date, costUSD: Double, totalTokens: Int?) {            self.date = date            self.costUSD = costUSD            self.totalTokens = totalTokens            self.id = "\(Int(date.timeIntervalSince1970))-\(costUSD)"        }    }     private let provider: UsageProvider    private let daily: [CCUsageDailyReport.Entry]    private let totalCostUSD: Double?    @State private var selectedDateKey: String?     init(provider: UsageProvider, daily: [CCUsageDailyReport.Entry], totalCostUSD: Double?) {        self.provider = provider        self.daily = daily        self.totalCostUSD = totalCostUSD    }     var body: some View {        let model = Self.makeModel(provider: self.provider, daily: self.daily)        VStack(alignment: .leading, spacing: 10) {            if model.points.isEmpty {                Text("No cost history data.")                    .font(.footnote)                    .foregroundStyle(.secondary)            } else {                Chart {                    ForEach(model.points) { point in                        BarMark(                            x: .value("Day", point.date, unit: .day),                            y: .value("Cost", point.costUSD))                            .foregroundStyle(model.barColor)                    }                    if let peak = Self.peakPoint(model: model) {                        let capStart = max(peak.costUSD - Self.capHeight(maxValue: model.maxCostUSD), 0)                        BarMark(                            x: .value("Day", peak.date, unit: .day),                            yStart: .value("Cap start", capStart),                            yEnd: .value("Cap end", peak.costUSD))                            .foregroundStyle(Color(nsColor: .systemYellow))                    }                }                .chartYAxis(.hidden)                .chartXAxis {                    AxisMarks(values: model.axisDates) { _ in                        AxisGridLine().foregroundStyle(Color.clear)                        AxisTick().foregroundStyle(Color.clear)                        AxisValueLabel(format: .dateTime.month(.abbreviated).day())                            .font(.caption2)                            .foregroundStyle(Color(nsColor: .tertiaryLabelColor))                    }                }                .chartLegend(.hidden)                .frame(height: 130)                .chartOverlay { proxy in                    GeometryReader { geo in                        ZStack(alignment: .topLeading) {                            if let rect = self.selectionBandRect(model: model, proxy: proxy, geo: geo) {                                Rectangle()                                    .fill(Self.selectionBandColor)                                    .frame(width: rect.width, height: rect.height)                                    .position(x: rect.midX, y: rect.midY)                                    .allowsHitTesting(false)                            }                            MouseLocationReader { location in                                self.updateSelection(location: location, model: model, proxy: proxy, geo: geo)                            }                            .frame(maxWidth: .infinity, maxHeight: .infinity)                            .contentShape(Rectangle())                        }                    }                }                 let detail = self.detailLines(model: model)                VStack(alignment: .leading, spacing: 0) {                    Text(detail.primary)                        .font(.caption)                        .foregroundStyle(.secondary)                        .lineLimit(1)                        .truncationMode(.tail)                        .frame(height: 16, alignment: .leading)                    Text(detail.secondary ?? " ")                        .font(.caption)                        .foregroundStyle(.secondary)                        .lineLimit(1)                        .truncationMode(.tail)                        .frame(height: 16, alignment: .leading)                        .opacity(detail.secondary == nil ? 0 : 1)                }            }             if let total = self.totalCostUSD {                Text("Total (30d): \(UsageFormatter.usdString(total))")                    .font(.caption)                    .foregroundStyle(.secondary)            }        }        .padding(.horizontal, 16)        .padding(.vertical, 10)        .frame(minWidth: 300, maxWidth: 300, alignment: .leading)    }     private struct Model {        let points: [Point]        let pointsByDateKey: [String: Point]        let entriesByDateKey: [String: CCUsageDailyReport.Entry]        let dateKeys: [(key: String, date: Date)]        let axisDates: [Date]        let barColor: Color        let peakKey: String?        let maxCostUSD: Double    }     private static let selectionBandColor = Color(nsColor: .labelColor).opacity(0.1)     private static func capHeight(maxValue: Double) -> Double {        maxValue * 0.05    }     private static func makeModel(provider: UsageProvider, daily: [CCUsageDailyReport.Entry]) -> Model {        let sorted = daily.sorted { lhs, rhs in lhs.date < rhs.date }        var points: [Point] = []        points.reserveCapacity(sorted.count)         var pointsByKey: [String: Point] = [:]        pointsByKey.reserveCapacity(sorted.count)         var entriesByKey: [String: CCUsageDailyReport.Entry] = [:]        entriesByKey.reserveCapacity(sorted.count)         var dateKeys: [(key: String, date: Date)] = []        dateKeys.reserveCapacity(sorted.count)         var peak: (key: String, costUSD: Double)?        var maxCostUSD: Double = 0        for entry in sorted {            guard let costUSD = entry.costUSD, costUSD > 0 else { continue }            guard let date = self.dateFromDayKey(entry.date) else { continue }            let point = Point(date: date, costUSD: costUSD, totalTokens: entry.totalTokens)            points.append(point)            pointsByKey[entry.date] = point            entriesByKey[entry.date] = entry            dateKeys.append((entry.date, date))            if let cur = peak {                if costUSD > cur.costUSD { peak = (entry.date, costUSD) }            } else {                peak = (entry.date, costUSD)            }            maxCostUSD = max(maxCostUSD, costUSD)        }         let axisDates: [Date] = {            guard let first = dateKeys.first?.date, let last = dateKeys.last?.date else { return [] }            if Calendar.current.isDate(first, inSameDayAs: last) { return [first] }            return [first, last]        }()         let barColor = Self.barColor(for: provider)        return Model(            points: points,            pointsByDateKey: pointsByKey,            entriesByDateKey: entriesByKey,            dateKeys: dateKeys,            axisDates: axisDates,            barColor: barColor,            peakKey: peak?.key,            maxCostUSD: maxCostUSD)    }     private static func barColor(for provider: UsageProvider) -> Color {        switch provider {        case .codex:            Color(red: 73 / 255, green: 163 / 255, blue: 176 / 255)        case .claude:            Color(red: 204 / 255, green: 124 / 255, blue: 94 / 255)        case .gemini:            Color(red: 171 / 255, green: 135 / 255, blue: 234 / 255)        case .antigravity:            Color(red: 96 / 255, green: 186 / 255, blue: 126 / 255)        }    }     private static func dateFromDayKey(_ key: String) -> Date? {        let parts = key.split(separator: "-")        guard parts.count == 3,              let year = Int(parts[0]),              let month = Int(parts[1]),              let day = Int(parts[2]) else { return nil }         var comps = DateComponents()        comps.calendar = Calendar.current        comps.timeZone = TimeZone.current        comps.year = year        comps.month = month        comps.day = day        comps.hour = 12        return comps.date    }     private static func peakPoint(model: Model) -> Point? {        guard let key = model.peakKey else { return nil }        return model.pointsByDateKey[key]    }     private func selectionBandRect(model: Model, proxy: ChartProxy, geo: GeometryProxy) -> CGRect? {        guard let key = self.selectedDateKey else { return nil }        guard let plotAnchor = proxy.plotFrame else { return nil }        let plotFrame = geo[plotAnchor]        guard let index = model.dateKeys.firstIndex(where: { $0.key == key }) else { return nil }        let date = model.dateKeys[index].date        guard let x = proxy.position(forX: date) else { return nil }         func xForIndex(_ idx: Int) -> CGFloat? {            guard idx >= 0, idx < model.dateKeys.count else { return nil }            return proxy.position(forX: model.dateKeys[idx].date)        }         let xPrev = xForIndex(index - 1)        let xNext = xForIndex(index + 1)         let leftInPlot: CGFloat = if let xPrev {            (xPrev + x) / 2        } else if let xNext {            x - (xNext - x) / 2        } else {            x - 8        }         let rightInPlot: CGFloat = if let xNext {            (xNext + x) / 2        } else if let xPrev {            x + (x - xPrev) / 2        } else {            x + 8        }         let left = plotFrame.origin.x + min(leftInPlot, rightInPlot)        let right = plotFrame.origin.x + max(leftInPlot, rightInPlot)        return CGRect(x: left, y: plotFrame.origin.y, width: right - left, height: plotFrame.height)    }     private func updateSelection(        location: CGPoint?,        model: Model,        proxy: ChartProxy,        geo: GeometryProxy)    {        guard let location else {            if self.selectedDateKey != nil { self.selectedDateKey = nil }            return        }         guard let plotAnchor = proxy.plotFrame else { return }        let plotFrame = geo[plotAnchor]        guard plotFrame.contains(location) else { return }         let xInPlot = location.x - plotFrame.origin.x        guard let date: Date = proxy.value(atX: xInPlot) else { return }        guard let nearest = self.nearestDateKey(to: date, model: model) else { return }         if self.selectedDateKey != nearest {            self.selectedDateKey = nearest        }    }     private func nearestDateKey(to date: Date, model: Model) -> String? {        guard !model.dateKeys.isEmpty else { return nil }        var best: (key: String, distance: TimeInterval)?        for entry in model.dateKeys {            let dist = abs(entry.date.timeIntervalSince(date))            if let cur = best {                if dist < cur.distance { best = (entry.key, dist) }            } else {                best = (entry.key, dist)            }        }        return best?.key    }     private func detailLines(model: Model) -> (primary: String, secondary: String?) {        guard let key = self.selectedDateKey,              let point = model.pointsByDateKey[key],              let date = Self.dateFromDayKey(key)        else {            return ("Hover a bar for details", nil)        }         let dayLabel = date.formatted(.dateTime.month(.abbreviated).day())        let cost = UsageFormatter.usdString(point.costUSD)        if let tokens = point.totalTokens {            let primary = "\(dayLabel): \(cost) · \(UsageFormatter.tokenCountString(tokens)) tokens"            let secondary = self.topModelsText(key: key, model: model)            return (primary, secondary)        }        let primary = "\(dayLabel): \(cost)"        let secondary = self.topModelsText(key: key, model: model)        return (primary, secondary)    }     private func topModelsText(key: String, model: Model) -> String? {        guard let entry = model.entriesByDateKey[key] else { return nil }        guard let breakdown = entry.modelBreakdowns, !breakdown.isEmpty else { return nil }        let parts = breakdown            .compactMap { item -> (name: String, costUSD: Double)? in                guard let costUSD = item.costUSD, costUSD > 0 else { return nil }                return (UsageFormatter.modelDisplayName(item.modelName), costUSD)            }            .sorted { lhs, rhs in                if lhs.costUSD == rhs.costUSD { return lhs.name < rhs.name }                return lhs.costUSD > rhs.costUSD            }            .prefix(3)            .map { "\($0.name) \(UsageFormatter.usdString($0.costUSD))" }        guard !parts.isEmpty else { return nil }        return "Top: \(parts.joined(separator: " · "))"    }}