Implement statistics tab aligned with Android and fix summary decode.
Add role-based analyse APIs, summary/daily UI with date range sheet, and flexible parsing for string refund amounts from the backend. Co-authored-by: Cursor <cursoragent@cursor.com>
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//
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// StatisticsViewModel.swift
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// suixinkan
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//
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import Foundation
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/// 数据 Tab ViewModel，对齐 Android `StatisticsViewModel`。
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final class StatisticsViewModel {
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private(set) var statistics: StatisticsSummaryResponse?
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private(set) var selectedPeriod = StatisticsSummaryPeriod.today.rawValue
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private(set) var selectedPeriodTime = ""
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private(set) var statisticsList: [StatisticsDailyItem] = []
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private(set) var statisticsRangeText = "今日"
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private(set) var rangeStartDate: Date?
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private(set) var rangeEndDate: Date?
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private(set) var isRefreshing = false
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private(set) var canLoadMore = false
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private(set) var isLoadingSummary = false
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var onStateChange: (() -> Void)?
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var onShowMessage: ((String) -> Void)?
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private var currentPage = 1
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private var totalCount = 0
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private var startTime = ""
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private var endTime = ""
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private let apiDateFormatter: DateFormatter = {
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let formatter = DateFormatter()
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formatter.calendar = Calendar(identifier: .gregorian)
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formatter.locale = Locale(identifier: "zh_CN")
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formatter.dateFormat = "yyyy-MM-dd"
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return formatter
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}()
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private let uiDateFormatter: DateFormatter = {
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let formatter = DateFormatter()
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formatter.calendar = Calendar(identifier: .gregorian)
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formatter.locale = Locale(identifier: "zh_CN")
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formatter.dateFormat = "yyyy/MM/dd"
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return formatter
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}()
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private var rangeMap: [String: String] {
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Dictionary(uniqueKeysWithValues: StatisticsSummaryPeriod.allCases.map { ($0.rawValue, $0.rangeValue) })
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}
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/// 首次进入 Tab 时初始化汇总与列表。
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func initStatistics(api: StatisticsAPI) async {
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await loadStatistics(StatisticsSummaryPeriod.today.rawValue, api: api)
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await updateRangeByShortcut(StatisticsRangeShortcut.today.rawValue, api: api)
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}
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/// 切换汇总周期 chip。
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func selectPeriod(_ period: String, api: StatisticsAPI) async {
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await loadStatistics(period, api: api)
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}
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/// 加载汇总数据。
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func loadStatistics(_ period: String, api: StatisticsAPI) async {
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isLoadingSummary = true
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selectedPeriod = period
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updateSelectedPeriodTime(period)
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notifyStateChange()
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let range = rangeMap[period] ?? StatisticsSummaryPeriod.today.rangeValue
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defer {
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isLoadingSummary = false
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notifyStateChange()
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}
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do {
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statistics = try await fetchSummary(range: range, api: api)
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notifyStateChange()
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} catch is CancellationError {
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return
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} catch {
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onShowMessage?(error.localizedDescription)
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}
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}
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/// 下拉刷新列表。
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func refreshStatistics(api: StatisticsAPI) async {
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currentPage = 1
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isRefreshing = true
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notifyStateChange()
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await fetchStatisticsList(api: api)
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}
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/// 滚动加载更多。
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func loadMore(api: StatisticsAPI) async {
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guard statisticsList.count < totalCount else { return }
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currentPage += 1
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await fetchStatisticsList(api: api)
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}
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/// 列表区快捷日期。
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func updateRangeByShortcut(_ shortcut: String, api: StatisticsAPI) async {
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let today = startOfToday()
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switch shortcut {
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case StatisticsRangeShortcut.today.rawValue:
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await applyRange(start: today, end: today, label: StatisticsRangeShortcut.today.rawValue, api: api)
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case StatisticsRangeShortcut.yesterday.rawValue:
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let yesterday = calendar.date(byAdding: .day, value: -1, to: today) ?? today
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await applyRange(start: yesterday, end: yesterday, label: StatisticsRangeShortcut.yesterday.rawValue, api: api)
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case StatisticsRangeShortcut.last7Days.rawValue:
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let start = calendar.date(byAdding: .day, value: -6, to: today) ?? today
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await applyRange(start: start, end: today, label: StatisticsRangeShortcut.last7Days.rawValue, api: api)
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case StatisticsRangeShortcut.all.rawValue:
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startTime = ""
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endTime = ""
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rangeStartDate = nil
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rangeEndDate = nil
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statisticsRangeText = StatisticsRangeShortcut.all.rawValue
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notifyStateChange()
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await refreshStatistics(api: api)
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default:
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break
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}
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}
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/// 日历自定义区间。
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func updateRangeByCalendar(start: Date, end: Date, api: StatisticsAPI) async {
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await applyRange(start: startOfDay(start), end: startOfDay(end), label: nil, api: api)
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}
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/// 供测试读取当前列表查询起始时间。
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var listStartTime: String { startTime }
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/// 供测试读取当前列表查询结束时间。
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var listEndTime: String { endTime }
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/// 供测试读取当前页码。
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var listCurrentPage: Int { currentPage }
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/// 供测试读取 range 映射。
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func rangeValue(for period: String) -> String {
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rangeMap[period] ?? StatisticsSummaryPeriod.today.rangeValue
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}
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/// 供测试生成周期日期文案。
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func formattedSelectedPeriodTime(for period: String) -> String {
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let previous = selectedPeriod
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selectedPeriod = period
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updateSelectedPeriodTime(period)
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let result = selectedPeriodTime
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selectedPeriod = previous
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return result
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}
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private func fetchStatisticsList(api: StatisticsAPI) async {
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defer {
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isRefreshing = false
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notifyStateChange()
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}
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do {
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let response = try await fetchDailyList(api: api)
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totalCount = response.total
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if currentPage == 1 {
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statisticsList = response.data
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} else {
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statisticsList.append(contentsOf: response.data)
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}
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canLoadMore = statisticsList.count < totalCount
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notifyStateChange()
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} catch is CancellationError {
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return
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} catch {
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onShowMessage?(error.localizedDescription)
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}
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}
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private func applyRange(start: Date, end: Date, label: String?, api: StatisticsAPI) async {
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startTime = apiDateFormatter.string(from: start)
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endTime = apiDateFormatter.string(from: end)
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rangeStartDate = start
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rangeEndDate = end
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statisticsRangeText = label ?? "\(uiDateFormatter.string(from: start))至\(uiDateFormatter.string(from: end))"
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notifyStateChange()
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await refreshStatistics(api: api)
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}
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private func updateSelectedPeriodTime(_ period: String) {
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let today = startOfToday()
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let (start, end): (Date, Date)
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switch period {
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case StatisticsSummaryPeriod.today.rawValue:
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(start, end) = (today, today)
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case StatisticsSummaryPeriod.yesterday.rawValue:
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let yesterday = calendar.date(byAdding: .day, value: -1, to: today) ?? today
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(start, end) = (yesterday, yesterday)
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case StatisticsSummaryPeriod.last7Days.rawValue:
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let startDate = calendar.date(byAdding: .day, value: -6, to: today) ?? today
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(start, end) = (startDate, today)
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case StatisticsSummaryPeriod.thisMonth.rawValue:
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let components = calendar.dateComponents([.year, .month], from: today)
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let firstDay = calendar.date(from: components) ?? today
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(start, end) = (firstDay, today)
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default:
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(start, end) = (today, today)
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}
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selectedPeriodTime = "\(uiDateFormatter.string(from: start))至\(uiDateFormatter.string(from: end))"
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}
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private func fetchSummary(range: String, api: StatisticsAPI) async throws -> StatisticsSummaryResponse {
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switch currentRole {
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case .storeAdmin:
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let storeId = try resolveStoreId()
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return try await api.storeSummary(storeId: storeId, range: range)
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case .scenicAdmin:
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return try await api.scenicAdminSummary(scenicId: AppStore.shared.currentScenicId, range: range)
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default:
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return try await api.photographerSummary(scenicId: AppStore.shared.currentScenicId, range: range)
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}
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}
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private func fetchDailyList(api: StatisticsAPI) async throws -> ListDataResponse<StatisticsDailyItem> {
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switch currentRole {
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case .storeAdmin:
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let storeId = try resolveStoreId()
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return try await api.storeDaily(
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storeId: storeId,
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startTime: startTime,
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endTime: endTime,
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page: currentPage
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)
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case .scenicAdmin:
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return try await api.scenicAdminDaily(
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scenicId: AppStore.shared.currentScenicId,
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startTime: startTime,
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endTime: endTime,
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page: currentPage
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)
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default:
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return try await api.photographerDaily(
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scenicId: AppStore.shared.currentScenicId,
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startTime: startTime,
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endTime: endTime,
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page: currentPage
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)
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}
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}
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private var currentRole: AppRoleCode {
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AppStore.shared.currentAppRole ?? .photographer
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}
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private func resolveStoreId() throws -> Int {
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let storeId = AppStore.shared.currentStoreId
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guard storeId > 0 else {
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throw StatisticsFlowError.missingStore
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}
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return storeId
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}
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private var calendar: Calendar {
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var calendar = Calendar(identifier: .gregorian)
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calendar.locale = Locale(identifier: "zh_CN")
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calendar.timeZone = TimeZone.current
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return calendar
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}
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private func startOfToday() -> Date {
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startOfDay(Date())
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}
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private func startOfDay(_ date: Date) -> Date {
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calendar.startOfDay(for: date)
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}
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private func notifyStateChange() {
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onStateChange?()
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}
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}
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enum StatisticsFlowError: LocalizedError {
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case missingStore
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var errorDescription: String? {
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switch self {
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case .missingStore: "请先选择店铺"
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}
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}
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}
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