同步已迁移的 iOS 模块

2026-06-22 15:35:12 +08:00
parent 0a0d4fbd79
commit 08465fffde
48 changed files with 4455 additions and 15 deletions
--- a/suixinkan/Features/Statistics/ViewModels/StatisticsViewModel.swift
+++ b/suixinkan/Features/Statistics/ViewModels/StatisticsViewModel.swift
@ -0,0 +1,100 @@
+//
+//  StatisticsViewModel.swift
+//  suixinkan
+//
+//  Created by Codex on 2026/6/22.
+//
+
+import Foundation
+import Observation
+
+@MainActor
+@Observable
+/// 数据统计页面 ViewModel，管理时间段、汇总数据、每日明细和分页状态。
+final class StatisticsViewModel {
+    var selectedPeriod: StatisticsPeriod = .today
+    private(set) var loading = false
+    private(set) var loadingMore = false
+    private(set) var summary = StatisticsSummaryResponse()
+    private(set) var dailyItems: [StatisticsDailyItem] = []
+    private(set) var totalDailyCount = 0
+    private(set) var lastRefreshAt: Date?
+
+    private var page = 1
+    private let pageSize = 15
+
+    /// 当前日数据是否还有下一页。
+    var hasMore: Bool {
+        dailyItems.count < totalDailyCount
+    }
+
+    /// 切换统计时间段，并重置分页重新加载。
+    func selectPeriod(_ period: StatisticsPeriod, api: StatisticsServing, scenicId: Int?, roleId: Int?) async throws {
+        selectedPeriod = period
+        try await reload(api: api, scenicId: scenicId, roleId: roleId)
+    }
+
+    /// 刷新统计汇总和第一页日数据，缺少景区时清空旧状态。
+    func reload(api: StatisticsServing, scenicId: Int?, roleId: Int?, showLoading: Bool = true) async throws {
+        guard let scenicId else {
+            reset()
+            return
+        }
+
+        if showLoading { loading = true }
+        defer { if showLoading { loading = false } }
+
+        let isScenicAdmin = roleId == 53
+        async let summaryResult = api.summary(
+            scenicId: scenicId,
+            range: selectedPeriod.apiRange,
+            isScenicAdmin: isScenicAdmin
+        )
+        async let dailyResult = api.dailyList(
+            scenicId: scenicId,
+            startTime: selectedPeriod.apiStartTime,
+            endTime: selectedPeriod.apiEndTime,
+            page: 1,
+            pageSize: pageSize,
+            isScenicAdmin: isScenicAdmin
+        )
+        let (summaryData, dailyData) = try await (summaryResult, dailyResult)
+        summary = summaryData
+        dailyItems = dailyData.data
+        totalDailyCount = dailyData.total
+        page = 1
+        lastRefreshAt = Date()
+    }
+
+    /// 加载每日统计下一页。
+    func loadMore(api: StatisticsServing, scenicId: Int?, roleId: Int?) async throws {
+        guard !loadingMore, hasMore, let scenicId else { return }
+
+        loadingMore = true
+        defer { loadingMore = false }
+
+        let nextPage = page + 1
+        let result = try await api.dailyList(
+            scenicId: scenicId,
+            startTime: selectedPeriod.apiStartTime,
+            endTime: selectedPeriod.apiEndTime,
+            page: nextPage,
+            pageSize: pageSize,
+            isScenicAdmin: roleId == 53
+        )
+        dailyItems.append(contentsOf: result.data)
+        totalDailyCount = result.total
+        page = nextPage
+    }
+
+    /// 清空统计状态。
+    private func reset() {
+        summary = StatisticsSummaryResponse()
+        dailyItems = []
+        totalDailyCount = 0
+        page = 1
+        lastRefreshAt = nil
+        loading = false
+        loadingMore = false
+    }
+}