同步已迁移的 iOS 模块

suixinkan/Features/Orders/ViewModels/OrdersViewModel.swift

@@ -0,0 +1,196 @@
+//
+//  OrdersViewModel.swift
+//  suixinkan
+//
+//  Created by Codex on 2026/6/22.
+//
+
+import Foundation
+import Observation
+
+@MainActor
+@Observable
+/// 订单页面 ViewModel，管理订单列表、核销列表、筛选条件和手动核销流程。
+final class OrdersViewModel {
+    var selectedEntry: OrdersEntry = .storeOrders
+    var selectedStatus = 0
+    var searchPhone = ""
+    var filterStartDate: Date?
+    var filterEndDate: Date?
+    private(set) var loading = false
+    private(set) var loadingMore = false
+    private(set) var isVerifying = false
+    private(set) var currentVerifyingOrderNumber: String?
+
+    private(set) var storeOrders: [OrderEntity] = []
+    private(set) var storeTotal = 0
+    private(set) var storePage = 1
+    private(set) var storeHasMore = false
+
+    private(set) var writeOffOrders: [WriteOffOrderItem] = []
+    private(set) var writeOffTotal = 0
+    private(set) var writeOffPage = 1
+    private(set) var writeOffHasMore = false
+
+    /// 返回去除首尾空白后的手机号搜索值。
+    var normalizedPhone: String? {
+        let text = searchPhone.trimmingCharacters(in: .whitespacesAndNewlines)
+        return text.isEmpty ? nil : text
+    }
+
+    /// 根据当前子入口刷新对应列表。
+    func reload(api: OrderServing, scenicId: Int?, roleId: Int?, showLoading: Bool = true) async throws {
+        switch selectedEntry {
+        case .storeOrders:
+            try await reloadStoreOrders(api: api, scenicId: scenicId, roleId: roleId, showLoading: showLoading)
+        case .verificationOrders:
+            try await reloadWriteOffOrders(api: api, scenicId: scenicId, showLoading: showLoading)
+        }
+    }
+
+    /// 刷新订单管理列表，缺少景区时清空旧数据。
+    func reloadStoreOrders(api: OrderServing, scenicId: Int?, roleId: Int?, showLoading: Bool = true) async throws {
+        guard let scenicId else {
+            storeOrders = []
+            storeTotal = 0
+            storePage = 1
+            storeHasMore = false
+            return
+        }
+
+        if showLoading { loading = true }
+        defer { if showLoading { loading = false } }
+
+        let result = try await api.orderList(
+            scenicId: scenicId,
+            page: 1,
+            pageSize: pageSize,
+            orderStatus: orderStatusQuery,
+            userPhone: normalizedPhone,
+            startTime: startTimeQuery,
+            endTime: endTimeQuery,
+            isRefined: refinedQuery,
+            isScenicAdmin: roleId == 53
+        )
+        storeOrders = result.list
+        storeTotal = result.total
+        storePage = 1
+        storeHasMore = storeOrders.count < result.total && !result.list.isEmpty
+    }
+
+    /// 加载订单管理下一页。
+    func loadMoreStoreOrders(api: OrderServing, scenicId: Int?, roleId: Int?) async throws {
+        guard !loadingMore, storeHasMore, let scenicId else { return }
+        loadingMore = true
+        defer { loadingMore = false }
+
+        let nextPage = storePage + 1
+        let result = try await api.orderList(
+            scenicId: scenicId,
+            page: nextPage,
+            pageSize: pageSize,
+            orderStatus: orderStatusQuery,
+            userPhone: normalizedPhone,
+            startTime: startTimeQuery,
+            endTime: endTimeQuery,
+            isRefined: refinedQuery,
+            isScenicAdmin: roleId == 53
+        )
+        storeOrders.append(contentsOf: result.list)
+        storeTotal = result.total
+        storePage = nextPage
+        storeHasMore = storeOrders.count < result.total && !result.list.isEmpty
+    }
+
+    /// 刷新核销订单列表，缺少景区时清空旧数据。
+    func reloadWriteOffOrders(api: OrderServing, scenicId: Int?, showLoading: Bool = true) async throws {
+        guard let scenicId else {
+            writeOffOrders = []
+            writeOffTotal = 0
+            writeOffPage = 1
+            writeOffHasMore = false
+            return
+        }
+
+        if showLoading { loading = true }
+        defer { if showLoading { loading = false } }
+
+        let result = try await api.writeOffList(scenicId: scenicId, page: 1, pageSize: pageSize)
+        writeOffOrders = result.list
+        writeOffTotal = result.total
+        writeOffPage = 1
+        writeOffHasMore = writeOffOrders.count < result.total && !result.list.isEmpty
+    }
+
+    /// 加载核销订单下一页。
+    func loadMoreWriteOffOrders(api: OrderServing, scenicId: Int?) async throws {
+        guard !loadingMore, writeOffHasMore, let scenicId else { return }
+        loadingMore = true
+        defer { loadingMore = false }
+
+        let nextPage = writeOffPage + 1
+        let result = try await api.writeOffList(scenicId: scenicId, page: nextPage, pageSize: pageSize)
+        writeOffOrders.append(contentsOf: result.list)
+        writeOffTotal = result.total
+        writeOffPage = nextPage
+        writeOffHasMore = writeOffOrders.count < result.total && !result.list.isEmpty
+    }
+
+    /// 手动核销订单，并在成功后刷新核销列表。
+    func verify(api: OrderServing, scenicId: Int, orderNumber: String) async throws {
+        guard !isVerifying else { return }
+
+        isVerifying = true
+        currentVerifyingOrderNumber = orderNumber
+        defer {
+            isVerifying = false
+            currentVerifyingOrderNumber = nil
+        }
+
+        try await api.writeOff(orderNumber: orderNumber)
+        let refreshed = try await api.writeOffList(scenicId: scenicId, page: 1, pageSize: pageSize)
+        writeOffOrders = refreshed.list
+        writeOffTotal = refreshed.total
+        writeOffPage = 1
+        writeOffHasMore = writeOffOrders.count < refreshed.total && !refreshed.list.isEmpty
+    }
+
+    /// 用于测试重复提交场景的内部状态设置。
+    func markVerifyingForTests(orderNumber: String) {
+        isVerifying = true
+        currentVerifyingOrderNumber = orderNumber
+    }
+
+    private let pageSize = 20
+
+    private var orderStatusQuery: Int? {
+        selectedStatus > 0 ? selectedStatus : nil
+    }
+
+    private var startTimeQuery: String? {
+        filterStartDate.map { Self.dayFormatter.string(from: $0) }
+    }
+
+    private var endTimeQuery: String? {
+        filterEndDate.map { Self.dayFormatter.string(from: $0) }
+    }
+
+    private var refinedQuery: Int? {
+        switch selectedStatus {
+        case -1:
+            return 1
+        case -2:
+            return 2
+        default:
+            return nil
+        }
+    }
+
+    private static let dayFormatter: DateFormatter = {
+        let formatter = DateFormatter()
+        formatter.calendar = Calendar(identifier: .gregorian)
+        formatter.locale = Locale(identifier: "en_US_POSIX")
+        formatter.dateFormat = "yyyy-MM-dd"
+        return formatter
+    }()
+}