import Chartsimport CodexBarCoreimport SwiftUI @MainActorstruct CostHistoryChartMenuView: View {    typealias DailyEntry = CostUsageDailyReport.Entry     enum AxisLabelPlacement: Equatable {        case hidden        case centered        case edges    }     private struct Point: Identifiable {        let id: String        let date: Date        let costUSD: Double        let totalTokens: Int?        let requestCount: Int?         init(date: Date, costUSD: Double, totalTokens: Int?, requestCount: Int?) {            self.date = date            self.costUSD = costUSD            self.totalTokens = totalTokens            self.requestCount = requestCount            self.id = "\(Int(date.timeIntervalSince1970))-\(costUSD)"        }    }     private struct DetailRow: Identifiable {        let id: String        let title: String        let subtitle: String?        let modeSubtitle: String?        let accentColor: Color    }     private struct DetailContent {        let primary: String        let rows: [DetailRow]    }     private let provider: UsageProvider    private let daily: [DailyEntry]    private let totalCostUSD: Double?    private let currencyCode: String    private let historyDays: Int    private let windowLabel: String?    private let projects: [CostUsageProjectBreakdown]    private let width: CGFloat    private let onHeightChange: ((CGFloat) -> Void)?    @State private var selectedDateKey: String?     init(        provider: UsageProvider,        daily: [DailyEntry],        totalCostUSD: Double?,        currencyCode: String = "USD",        historyDays: Int = 30,        windowLabel: String? = nil,        projects: [CostUsageProjectBreakdown] = [],        onHeightChange: ((CGFloat) -> Void)? = nil,        width: CGFloat)    {        self.provider = provider        self.daily = daily        self.totalCostUSD = totalCostUSD        self.currencyCode = currencyCode        self.historyDays = max(1, min(365, historyDays))        self.windowLabel = windowLabel        self.projects = projects        self.onHeightChange = onHeightChange        self.width = width    }     var body: some View {        let model = Self.makeModel(provider: self.provider, daily: self.daily)        let selectedDateKey = self.selectedDateKey ?? Self.defaultSelectedDateKey(model: model)        VStack(alignment: .leading, spacing: Self.outerSpacing) {            if model.points.isEmpty {                Text(L("No cost history data."))                    .font(.footnote)                    .foregroundStyle(.secondary)                    .accessibilityLabel(L("No cost history data."))            } else {                Chart {                    ForEach(model.points) { point in                        BarMark(                            x: .value(L("Day"), point.date, unit: .day),                            y: .value(L("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(L("Day"), peak.date, unit: .day),                            yStart: .value(L("Cap start"), capStart),                            yEnd: .value(L("Cap end"), peak.costUSD))                            .foregroundStyle(Color(nsColor: .systemYellow))                    }                }                .chartYAxis {                    AxisMarks(position: .leading, values: Self.yAxisTickValues(maxCostUSD: model.maxCostUSD)) { value in                        AxisGridLine().foregroundStyle(Color.clear)                        AxisTick().foregroundStyle(Color.clear)                        AxisValueLabel(centered: false) {                            if let raw = value.as(Double.self) {                                Text(Self.yAxisCostString(raw, currencyCode: self.currencyCode))                                    .font(.caption2)                                    .foregroundStyle(Color(nsColor: .tertiaryLabelColor))                                    .padding(.leading, 4)                            }                        }                    }                }                .chartXAxis {                    AxisMarks(values: model.axisDates) { value in                        AxisGridLine().foregroundStyle(Color.clear)                        AxisTick().foregroundStyle(Color.clear)                        if let date = value.as(Date.self) {                            AxisValueLabel(anchor: Self.xAxisLabelAnchor(for: date, axisDates: model.axisDates)) {                                Text(date, format: .dateTime.month(.abbreviated).day())                                    .font(.caption2)                                    .foregroundStyle(Color(nsColor: .tertiaryLabelColor))                            }                        }                    }                }                .chartLegend(.hidden)                .frame(height: Self.chartHeight)                .accessibilityLabel(L("Cost history chart"))                .accessibilityValue(                    model.points.isEmpty                        ? L("No data")                        : String(format: L("%d days of cost data"), model.points.count))                .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.detailContent(selectedDateKey: selectedDateKey, model: model)                VStack(alignment: .leading, spacing: Self.detailSpacing) {                    Text(detail.primary)                        .font(.caption)                        .foregroundStyle(.secondary)                        .lineLimit(1)                        .truncationMode(.tail)                        .frame(height: Self.detailPrimaryLineHeight, alignment: .leading)                    if !detail.rows.isEmpty {                        ScrollView(.vertical) {                            VStack(alignment: .leading, spacing: Self.detailSpacing) {                                ForEach(detail.rows) { row in                                    HStack(alignment: .top, spacing: 8) {                                        Rectangle()                                            .fill(row.accentColor)                                            .frame(                                                width: 2,                                                height: Self.accentHeight(for: row))                                            .padding(.top, 1)                                         VStack(alignment: .leading, spacing: 1) {                                            Text(row.title)                                                .font(.caption)                                                .foregroundStyle(.secondary)                                                .lineLimit(1)                                                .truncationMode(.tail)                                                .frame(height: Self.detailTitleLineHeight, alignment: .leading)                                            if let subtitle = row.subtitle {                                                Text(subtitle)                                                    .font(.caption2)                                                    .foregroundStyle(Color(nsColor: .tertiaryLabelColor))                                                    .lineLimit(1)                                                    .truncationMode(.tail)                                                    .frame(                                                        height: Self.detailSubtitleLineHeight,                                                        alignment: .leading)                                            }                                            if let modeSubtitle = row.modeSubtitle {                                                Text(modeSubtitle)                                                    .font(.caption2)                                                    .foregroundStyle(Color(nsColor: .tertiaryLabelColor))                                                    .lineLimit(1)                                                    .truncationMode(.tail)                                                    .frame(                                                        height: Self.detailSubtitleLineHeight,                                                        alignment: .leading)                                            }                                        }                                    }                                    .frame(height: Self.detailRowHeight(for: row), alignment: .leading)                                }                            }                        }                        .scrollIndicators(                            Self.detailRowsNeedScrolling(itemCount: detail.rows.count) ? .visible : .hidden)                        .frame(                            height: Self.detailRowsViewportHeight(rows: detail.rows),                            alignment: .topLeading)                        .id(selectedDateKey)                    }                }                .frame(                    height: Self.detailBlockHeight(rows: detail.rows),                    alignment: .topLeading)            }             if let total = self.totalCostUSD {                Text(String(                    format: L("Est. total (%@): %@"),                    self.windowLabel ?? Self.windowLabel(days: self.historyDays),                    self.costString(total)))                    .font(.caption)                    .foregroundStyle(.secondary)                    .lineLimit(1)                    .truncationMode(.head)                    .frame(height: Self.detailPrimaryLineHeight, alignment: .leading)            }             if !self.projects.isEmpty {                VStack(alignment: .leading, spacing: Self.projectRowSpacing) {                    Text("Projects")                        .font(.caption)                        .foregroundStyle(.secondary)                        .lineLimit(1)                        .frame(height: Self.detailPrimaryLineHeight, alignment: .leading)                    ForEach(Array(self.projects.prefix(Self.maxVisibleProjectRows)), id: \.projectRowID) { project in                        let visibleSources = Self.visibleProjectSources(project)                        VStack(alignment: .leading, spacing: Self.projectSourceSpacing) {                            self.projectParentRow(project)                            if !visibleSources.isEmpty {                                ForEach(                                    Array(visibleSources.prefix(Self.maxVisibleProjectSourceRows)),                                    id: \.sourceRowID)                                { source in                                    self.projectSourceRow(source)                                }                                let hiddenSourceCount = visibleSources.count - Self.maxVisibleProjectSourceRows                                if hiddenSourceCount > 0 {                                    Text("+ \(hiddenSourceCount) more")                                        .font(.caption2)                                        .foregroundStyle(Color(nsColor: .tertiaryLabelColor))                                        .lineLimit(1)                                        .padding(.leading, Self.projectSourceIndent)                                        .frame(height: Self.projectMoreRowHeight, alignment: .leading)                                }                            }                        }                        .frame(height: Self.projectEntryHeight(project), alignment: .topLeading)                    }                }                .frame(height: Self.projectBlockHeight(projects: self.projects), alignment: .topLeading)            }        }        .padding(.horizontal, 16)        .padding(.vertical, Self.verticalPadding)        .frame(minWidth: self.width, maxWidth: .infinity, alignment: .top)    }     private struct Model {        let points: [Point]        let pointsByDateKey: [String: Point]        let entriesByDateKey: [String: DailyEntry]        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)    static let maxVisibleDetailLines = 4    private static let detailPrimaryLineHeight: CGFloat = 16    private static let detailTitleLineHeight: CGFloat = 16    private static let detailSubtitleLineHeight: CGFloat = 13    private static let compactDetailRowHeight: CGFloat = 36    private static let expandedDetailRowHeight: CGFloat = 44    private static let detailSpacing: CGFloat = 6    private static let chartHeight: CGFloat = 130    private static let outerSpacing: CGFloat = 10    private static let projectRowHeight: CGFloat = 31    private static let projectRowSpacing: CGFloat = 5    private static let maxVisibleProjectRows = 5    private static let projectSourceRowHeight: CGFloat = 29    private static let projectSourceSpacing: CGFloat = 3    private static let projectSourceIndent: CGFloat = 10    private static let projectMoreRowHeight: CGFloat = 16    private static let maxVisibleProjectSourceRows = 2    static let verticalPadding: CGFloat = 10     /// Deterministic total height of the rendered card for a given selection. NSMenu's modal    /// tracking run loop never delivers SwiftUI `onPreferenceChange`, so the live height can't be    /// measured via a GeometryReader while the menu is open. Every component height is fixed, so    /// we compute the total directly and resize from the hover handler instead.    private static func totalCardHeight(        rows: [DetailRow],        hasTotal: Bool,        projects: [CostUsageProjectBreakdown] = []) -> CGFloat    {        var height = self.verticalPadding * 2        height += self.chartHeight        height += self.outerSpacing        height += self.detailBlockHeight(rows: rows)        if hasTotal {            height += self.outerSpacing            height += self.detailPrimaryLineHeight        }        if !projects.isEmpty {            height += self.outerSpacing            height += self.projectBlockHeight(projects: projects)        }        return height    }     private static func totalCardHeight(rows: [DetailRow], hasTotal: Bool, projectCount: Int) -> CGFloat {        let projects = (0..<projectCount).map { index in            CostUsageProjectBreakdown(                name: "Project \(index)",                path: "/tmp/project-\(index)",                totalTokens: nil,                totalCostUSD: nil,                daily: [],                modelBreakdowns: nil)        }        return self.totalCardHeight(rows: rows, hasTotal: hasTotal, projects: projects)    }     static func windowLabel(days: Int) -> String {        if days == 1 {            return L("Today")        }        return String(format: L("Last %d days"), days)    }     private static func detailRowHeight(for row: DetailRow) -> CGFloat {        self.detailRowHeight(hasModeSubtitle: row.modeSubtitle != nil)    }     private static func detailRowHeight(hasModeSubtitle: Bool) -> CGFloat {        hasModeSubtitle ? self.expandedDetailRowHeight : self.compactDetailRowHeight    }     private static func accentHeight(for row: DetailRow) -> CGFloat {        row.subtitle == nil && row.modeSubtitle == nil ? 14 : self.detailRowHeight(for: row)    }     private static func capHeight(maxValue: Double) -> Double {        maxValue * 0.05    }     /// Y-axis tick values for the cost chart: 0, mid, max when the range is at    /// $1 or more; 0 and max for smaller ranges; empty for flat/no data so the    /// axis renders no labels.    private static func yAxisTickValues(maxCostUSD: Double) -> [Double] {        guard maxCostUSD > 0 else { return [] }        if maxCostUSD < 1.0 {            return [0, maxCostUSD]        }        return [0, maxCostUSD / 2, maxCostUSD]    }     private static func makeModel(provider: UsageProvider, daily: [DailyEntry]) -> 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: DailyEntry] = [:]        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,                requestCount: entry.requestCount)            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: maxCostUSD > 0 ? peak?.key : nil,            maxCostUSD: maxCostUSD)    }     private static func axisLabelPlacement(for dates: [Date]) -> AxisLabelPlacement {        switch dates.count {        case 0: .hidden        case 1: .centered        default: .edges        }    }     private static func xAxisLabelAnchor(for date: Date, axisDates: [Date]) -> UnitPoint {        switch self.axisLabelPlacement(for: axisDates) {        case .hidden, .centered:            .top        case .edges:            if let first = axisDates.first, Calendar.current.isDate(date, inSameDayAs: first) {                .topLeading            } else if let last = axisDates.last, Calendar.current.isDate(date, inSameDayAs: last) {                .topTrailing            } else {                .top            }        }    }     private static func barColor(for provider: UsageProvider) -> Color {        let color = ProviderDescriptorRegistry.descriptor(for: provider).branding.color        return Color(red: color.red, green: color.green, blue: color.blue)    }     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 static func hasModeSubtitle(_ item: CostUsageDailyReport.ModelBreakdown) -> Bool {        item.standardCostUSD != nil || item.priorityCostUSD != nil    }     private static func detailBlockHeight(rows: [DetailRow]) -> CGFloat {        guard !rows.isEmpty else { return self.detailPrimaryLineHeight }        return self.detailPrimaryLineHeight + self.detailRowsViewportHeight(rows: rows) + self.detailSpacing    }     private static func detailRowsViewportHeight(rows: [DetailRow]) -> CGFloat {        let visibleRows = Array(rows.prefix(self.maxVisibleDetailLines))        guard !visibleRows.isEmpty else { return 0 }         let rowHeights = visibleRows.reduce(CGFloat(0)) { total, row in            total + self.detailRowHeight(for: row)        }        let spacing = CGFloat(max(visibleRows.count - 1, 0)) * self.detailSpacing        return rowHeights + spacing    }     private static func projectBlockHeight(projects: [CostUsageProjectBreakdown]) -> CGFloat {

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