125 lines
3.8 KiB
Swift
125 lines
3.8 KiB
Swift
//
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// LocationReportHistoryViewModel.swift
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// suixinkan
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//
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import Foundation
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/// 位置上报历史 ViewModel，对齐 Android `LocationReportHistoryViewModel`。
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final class LocationReportHistoryViewModel {
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private(set) var reportList: [LocationReportHistoryItem] = []
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private(set) var selectedFilter: LocationReportFilterType = .all
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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 startDate: Date?
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private(set) var endDate: Date?
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var onStateChange: (() -> Void)?
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var onShowMessage: ((String) -> Void)?
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private let appStore: AppStore
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private var currentPage = 1
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private let pageSize = 10
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private var isLoading = false
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init(appStore: AppStore = .shared) {
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self.appStore = appStore
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}
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var startDateText: String { formattedDate(startDate) }
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var endDateText: String { formattedDate(endDate) }
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var hasDateFilter: Bool { startDate != nil || endDate != nil }
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/// 加载历史上报列表。
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func loadReportList(api: HomeAPI, refresh: Bool = false) async {
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guard !isLoading || refresh else { return }
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let staffId = appStore.userId.trimmingCharacters(in: .whitespacesAndNewlines)
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guard !staffId.isEmpty else {
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onShowMessage?("获取用户ID失败")
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return
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}
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if refresh {
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currentPage = 1
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isRefreshing = true
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notifyStateChange()
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}
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isLoading = true
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defer {
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isLoading = false
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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 api.locationReportList(
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staffId: staffId,
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page: currentPage,
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pageSize: pageSize,
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type: selectedFilter.typeCode,
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startDate: apiDateString(startDate),
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endDate: apiDateString(endDate)
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)
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if refresh || currentPage == 1 {
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reportList = response.list
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} else {
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reportList.append(contentsOf: response.list)
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}
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currentPage += 1
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canLoadMore = reportList.count < response.total
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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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func selectFilter(_ filter: LocationReportFilterType, api: HomeAPI) async {
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selectedFilter = filter
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currentPage = 1
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await loadReportList(api: api, refresh: true)
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}
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func setDateRange(start: Date?, end: Date?, api: HomeAPI) async {
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startDate = start
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endDate = end
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currentPage = 1
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await loadReportList(api: api, refresh: true)
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}
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func clearDateRange(api: HomeAPI) async {
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startDate = nil
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endDate = nil
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currentPage = 1
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await loadReportList(api: api, refresh: true)
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}
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func loadMoreIfNeeded(currentIndex: Int, api: HomeAPI) async {
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guard canLoadMore, !isLoading else { return }
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guard currentIndex >= reportList.count - 2 else { return }
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await loadReportList(api: api, refresh: false)
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}
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private func apiDateString(_ date: Date?) -> String? {
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guard let date else { return nil }
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let formatter = DateFormatter()
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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.string(from: date)
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}
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private func formattedDate(_ date: Date?) -> String {
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guard let date else { return "请选择" }
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let formatter = DateFormatter()
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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.string(from: 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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