278 lines
11 KiB
Swift
278 lines
11 KiB
Swift
//
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// ScenicPromotionViewModels.swift
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// suixinkan
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//
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// Created by Codex on 2026/7/2.
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//
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import Combine
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import Foundation
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import SwiftUI
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/// 宣传页主视图 ViewModel，驱动看板数据、打卡点切换与素材选中状态。
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@MainActor
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final class ScenicPromotionViewModel: ObservableObject {
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@Published private(set) var pageState: ScenicPromotionPageState = .idle
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@Published private(set) var board: ScenicPromotionBoard?
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@Published var selectedSpotID: String?
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@Published var selectedMode: ScenicPromotionMediaMode = .video
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@Published var selectedMediaID: ScenicPromotionMedia.ID?
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@Published private(set) var activeScenario: ScenicPromotionDemoScenario = .normal
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/// 当前选中的打卡点；如果 selectedSpotID 为空，默认取第一个点位。
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var selectedSpot: ScenicPromotionSpot? {
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guard let board else { return nil }
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return board.spots.first { $0.id == selectedSpotID } ?? board.spots.first
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}
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/// 无排队演示状态下返回 nil，让页面展示“当前暂无排队信息”。
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var queue: ScenicPromotionQueueInfo? {
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guard activeScenario != .noQueue else { return nil }
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return selectedSpot?.queue
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}
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/// 当前素材列表随“视频 / 照片”切换变化，缩略图和主视觉共用这组数据。
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var mediaItems: [ScenicPromotionMedia] {
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guard activeScenario != .noMedia else { return [] }
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return Self.mediaItems(for: selectedSpot, mode: selectedMode)
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}
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/// 当前主视觉素材；如果选中 ID 丢失，兜底展示列表第一条。
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var selectedMedia: ScenicPromotionMedia? {
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let items = mediaItems
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return items.first { $0.id == selectedMediaID } ?? items.first
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}
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var hasQueueData: Bool {
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queue != nil
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}
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/// 首次进入页面时加载 Mock 数据。
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func loadIfNeeded() async {
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guard pageState == .idle else { return }
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await load()
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}
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/// 模拟接口加载耗时，便于展示 Loading 状态。
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func load() async {
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withAnimation(.easeInOut(duration: 0.25)) {
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pageState = .loading
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}
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try? await Task.sleep(nanoseconds: 350_000_000)
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guard !Task.isCancelled else { return }
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applyScenario(.normal)
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}
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/// 切换产品演示状态，覆盖正常、无媒体、无排队、加载、异常和空数据。
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func applyScenario(_ scenario: ScenicPromotionDemoScenario) {
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activeScenario = scenario
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withAnimation(.easeInOut(duration: 0.28)) {
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switch scenario {
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case .normal, .noMedia, .noQueue:
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board = ScenicPromotionMockStore.mockBoard
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selectedSpotID = selectedSpotID ?? board?.spots.first?.id
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selectedMediaID = Self.mediaItems(for: selectedSpot, mode: selectedMode).first?.id
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pageState = .normal
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case .loading:
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pageState = .loading
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case .error:
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board = nil
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pageState = .error("宣传页数据加载失败，请稍后重试")
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case .empty:
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board = nil
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pageState = .empty
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}
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}
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}
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/// 切换打卡点时，默认选中当前素材类型下的第一条素材。
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func selectSpot(_ spot: ScenicPromotionSpot) {
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withAnimation(.spring(response: 0.28, dampingFraction: 0.82)) {
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selectedSpotID = spot.id
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selectedMediaID = Self.mediaItems(for: spot, mode: selectedMode).first?.id
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}
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}
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/// 切换视频 / 照片时，底部主视觉同步切到该模式下第一条素材。
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func selectMode(_ mode: ScenicPromotionMediaMode) {
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withAnimation(.spring(response: 0.28, dampingFraction: 0.82)) {
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selectedMode = mode
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selectedMediaID = Self.mediaItems(for: selectedSpot, mode: mode).first?.id
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}
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}
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/// 点击横向素材缩略图，只更新选中态并联动底部主视觉。
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func selectMedia(_ media: ScenicPromotionMedia) {
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withAnimation(.spring(response: 0.28, dampingFraction: 0.82)) {
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selectedMediaID = media.id
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}
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}
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/// 左右箭头循环切换当前素材。
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func moveMedia(_ offset: Int) {
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let items = mediaItems
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guard !items.isEmpty else { return }
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let currentIndex = items.firstIndex { $0.id == selectedMedia?.id } ?? 0
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let nextIndex = (currentIndex + offset + items.count) % items.count
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selectMedia(items[nextIndex])
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}
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/// 根据点位和素材类型取素材列表，避免切换模式时读到旧模式数据。
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static func mediaItems(
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for spot: ScenicPromotionSpot?,
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mode: ScenicPromotionMediaMode
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) -> [ScenicPromotionMedia] {
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switch mode {
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case .video:
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return spot?.videos ?? []
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case .photo:
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return spot?.photos ?? []
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}
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}
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}
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/// 宣传页设置 ViewModel，管理排队绑定、素材点、上传、删除和提交。
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@MainActor
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final class ScenicPromotionSettingsViewModel: ObservableObject {
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@Published private(set) var pageState: ScenicPromotionSettingsPageState = .idle
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@Published private(set) var queuePoints: [ScenicPromotionQueuePoint] = []
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@Published private(set) var materialPoints: [ScenicPromotionMaterialPoint] = []
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@Published var selectedQueuePointIDs: Set<String> = []
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@Published var selectedMaterialPointID: String?
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@Published private(set) var materialsByPointID: [String: [ScenicPromotionManagedMaterial]] = [:]
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/// 当前要预览的已上传素材。
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@Published var previewMaterial: ScenicPromotionManagedMaterial?
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/// 多选排队打卡点的展示文案。
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var selectedQueuePointNames: String {
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let names = queuePoints
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.filter { selectedQueuePointIDs.contains($0.id) }
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.map(\.name)
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return names.isEmpty ? "请选择排队打卡点" : names.joined(separator: "、")
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}
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/// 当前素材上传所属打卡点。
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var selectedMaterialPoint: ScenicPromotionMaterialPoint? {
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guard let selectedMaterialPointID else { return nil }
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return materialPoints.first { $0.id == selectedMaterialPointID }
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}
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/// 素材点选择框的展示文案。
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var selectedMaterialPointName: String {
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selectedMaterialPoint?.name ?? "请选择素材所属打卡点"
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}
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/// 首次进入设置页时加载 Mock 配置。
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func loadIfNeeded() async {
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guard pageState == .idle else { return }
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await load()
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}
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/// 模拟设置页加载过程。
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func load() async {
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withAnimation(.easeInOut(duration: 0.24)) {
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pageState = .loading
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}
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try? await Task.sleep(nanoseconds: 260_000_000)
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guard !Task.isCancelled else { return }
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applyScenario(.normal)
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}
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/// 切换设置页演示状态。
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func applyScenario(_ scenario: ScenicPromotionSettingsDemoScenario) {
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withAnimation(.easeInOut(duration: 0.24)) {
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switch scenario {
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case .normal:
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queuePoints = ScenicPromotionMockStore.mockQueuePoints
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materialPoints = ScenicPromotionMockStore.mockMaterialPoints
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selectedQueuePointIDs = ["queue_bridge", "queue_hendi"]
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selectedMaterialPointID = selectedMaterialPointID ?? ScenicPromotionMockStore.mockMaterialPoints.first?.id
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materialsByPointID = ScenicPromotionMockStore.mockMaterialsByPointID
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pageState = .normal
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case .loading:
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pageState = .loading
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case .empty:
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queuePoints = []
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materialPoints = []
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selectedQueuePointIDs = []
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selectedMaterialPointID = nil
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materialsByPointID = [:]
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pageState = .empty
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case .error:
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queuePoints = []
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materialPoints = []
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selectedQueuePointIDs = []
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selectedMaterialPointID = nil
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materialsByPointID = [:]
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pageState = .error("宣传页设置数据加载失败，请稍后重试")
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}
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}
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}
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/// 排队打卡点多选逻辑。
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func toggleQueuePoint(_ point: ScenicPromotionQueuePoint) {
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withAnimation(.spring(response: 0.25, dampingFraction: 0.86)) {
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if selectedQueuePointIDs.contains(point.id) {
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selectedQueuePointIDs.remove(point.id)
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} else {
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selectedQueuePointIDs.insert(point.id)
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}
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}
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}
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/// 切换素材所属打卡点后，页面会展示该点位已有素材。
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func selectMaterialPoint(_ point: ScenicPromotionMaterialPoint) {
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withAnimation(.spring(response: 0.25, dampingFraction: 0.86)) {
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selectedMaterialPointID = point.id
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}
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}
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/// 获取当前素材点下指定类型的素材。
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func materials(for kind: ScenicPromotionUploadKind) -> [ScenicPromotionManagedMaterial] {
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guard let selectedMaterialPointID else { return [] }
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return (materialsByPointID[selectedMaterialPointID] ?? [])
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.filter { $0.kind == kind }
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}
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/// 模拟上传素材；未选择素材点时返回 false，由页面弹提示。
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func addMaterial(kind: ScenicPromotionUploadKind) -> Bool {
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guard let point = selectedMaterialPoint else { return false }
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let currentItems = materialsByPointID[point.id] ?? []
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let nextIndex = currentItems.filter { $0.kind == kind }.count + 1
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let assetName = ScenicPromotionMockStore.assetName(for: kind, index: nextIndex)
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let material = ScenicPromotionManagedMaterial(
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id: "\(point.id)_\(kind.rawValue)_\(UUID().uuidString)",
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pointID: point.id,
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kind: kind,
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title: "\(point.name)\(kind.shortTitle)\(nextIndex)",
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subtitle: kind == .video ? "模拟上传视频，待后续接入真实素材" : "模拟上传图片，待后续接入真实素材",
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assetName: assetName,
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duration: kind == .video ? "00:\(String(format: "%02d", 20 + nextIndex * 3))" : nil,
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createdAt: "2026-06-25 19:\(String(format: "%02d", 20 + nextIndex))"
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)
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withAnimation(.spring(response: 0.28, dampingFraction: 0.86)) {
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materialsByPointID[point.id, default: []].append(material)
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}
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return true
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}
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/// 删除当前素材点下的某个素材。
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func deleteMaterial(_ material: ScenicPromotionManagedMaterial) {
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withAnimation(.spring(response: 0.25, dampingFraction: 0.86)) {
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materialsByPointID[material.pointID]?.removeAll { $0.id == material.id }
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}
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}
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/// 打开素材预览页。
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func openMaterialPreview(_ material: ScenicPromotionManagedMaterial) {
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previewMaterial = material
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}
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/// 提交前校验至少绑定一个排队打卡点。
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func submit() -> Bool {
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guard !selectedQueuePointIDs.isEmpty else { return false }
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return true
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}
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}
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