82 lines
2.4 KiB
Swift
82 lines
2.4 KiB
Swift
//
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// ScenicQueueSettingChangeLogViewModel.swift
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// suixinkan
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//
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import Foundation
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/// 排队设置配置日志 ViewModel。
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final class ScenicQueueSettingChangeLogViewModel {
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private enum Constants {
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static let pageSize = 20
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}
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private(set) var items: [ScenicQueueSettingChangeLogItem] = []
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private(set) var isRefreshing = false
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private(set) var isLoadingMore = false
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private(set) var canLoadMore = false
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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 total = 0
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private var lastLoadedPage = 0
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init(appStore: AppStore = .shared) {
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self.appStore = appStore
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}
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/// 刷新配置日志。
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func refresh(api: ScenicQueueAPIProtocol) async {
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await load(api: api, page: 1, append: false)
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}
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/// 加载更多配置日志。
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func loadMore(api: ScenicQueueAPIProtocol) async {
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guard canLoadMore, !isRefreshing, !isLoadingMore else { return }
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await load(api: api, page: lastLoadedPage + 1, append: true)
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}
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private func load(api: ScenicQueueAPIProtocol, page: Int, append: Bool) async {
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guard appStore.currentScenicId > 0 else {
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onShowMessage?("请先选择景区")
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return
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}
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if append {
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isLoadingMore = true
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} else {
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isRefreshing = true
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}
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notifyStateChange()
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defer {
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if append { isLoadingMore = false } else { isRefreshing = false }
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notifyStateChange()
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}
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let spotId = Int64(appStore.scenicQueuePunchSpotId)
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do {
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let data = try await api.settingChangeLog(
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scenicId: Int64(appStore.currentScenicId),
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scenicSpotId: spotId,
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page: page,
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pageSize: Constants.pageSize
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)
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if append {
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let seen = Set(items.map(\.id))
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items += data.list.filter { !seen.contains($0.id) }
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} else {
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items = data.list
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}
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total = max(0, data.total)
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lastLoadedPage = max(1, data.page)
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canLoadMore = items.count < total && !data.list.isEmpty
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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 notifyStateChange() {
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onStateChange?()
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}
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}
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