451 lines
17 KiB
Swift
451 lines
17 KiB
Swift
//
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// WildReportSupplementEvidenceViewController.swift
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// suixinkan
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//
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import PhotosUI
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import SnapKit
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import UIKit
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/// 补充证据页面，允许为已有举报追加说明、图片和视频证据。
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final class WildReportSupplementEvidenceViewController: BaseViewController {
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private let viewModel: WildReportSupplementEvidenceViewModel
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private let api: any WildPhotographerReportServing
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private let uploader: any WildReportAttachmentUploading
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private let onSupplementSuccess: (() -> Void)?
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private let scrollView = UIScrollView()
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private let contentStack = UIStackView()
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private let textView = UITextView()
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private let placeholderLabel = UILabel()
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private let countLabel = UILabel()
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private let submitButton = UIButton(type: .system)
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private var pickerTarget: WildReportPickerTarget = .image
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private weak var activeInputView: UIView?
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init(
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record: WildReportRecord,
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homeViewModel: WildPhotographerReportHomeViewModel,
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api: any WildPhotographerReportServing = NetworkServices.shared.wildPhotographerReportAPI,
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uploader: any WildReportAttachmentUploading = NetworkServices.shared.ossUploadService,
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onSupplementSuccess: (() -> Void)? = nil
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) {
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self.viewModel = WildReportSupplementEvidenceViewModel(record: record, homeViewModel: homeViewModel)
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self.api = api
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self.uploader = uploader
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self.onSupplementSuccess = onSupplementSuccess
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super.init(nibName: nil, bundle: nil)
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}
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@available(*, unavailable)
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required init?(coder: NSCoder) {
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fatalError("init(coder:) has not been implemented")
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}
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deinit {
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NotificationCenter.default.removeObserver(self)
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}
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override func setupNavigationBar() {
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title = "补充证据"
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}
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override func setupUI() {
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view.backgroundColor = UIColor(hex: 0xF8FAFF)
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scrollView.keyboardDismissMode = .interactive
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scrollView.showsVerticalScrollIndicator = false
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contentStack.axis = .vertical
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contentStack.spacing = 14
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textView.font = .systemFont(ofSize: 15)
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textView.textColor = AppColor.textPrimary
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textView.backgroundColor = .clear
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textView.textContainerInset = UIEdgeInsets(top: 10, left: 8, bottom: 34, right: 8)
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textView.delegate = self
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placeholderLabel.text = "请补充新的线索说明..."
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placeholderLabel.font = .systemFont(ofSize: 15)
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placeholderLabel.textColor = UIColor(hex: 0x9CA3AF)
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countLabel.font = .systemFont(ofSize: 14)
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countLabel.textColor = UIColor(hex: 0x6B7280)
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countLabel.textAlignment = .right
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submitButton.setTitle("提交补充证据", for: .normal)
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submitButton.titleLabel?.font = .systemFont(ofSize: 18, weight: .bold)
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submitButton.setTitleColor(.white, for: .normal)
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submitButton.backgroundColor = AppColor.primary
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submitButton.layer.cornerRadius = 14
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submitButton.addTarget(self, action: #selector(submitTapped), for: .touchUpInside)
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view.addSubview(scrollView)
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scrollView.addSubview(contentStack)
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view.addSubview(submitButton)
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let dismissTap = UITapGestureRecognizer(target: self, action: #selector(dismissKeyboard))
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dismissTap.cancelsTouchesInView = false
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dismissTap.delegate = self
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scrollView.addGestureRecognizer(dismissTap)
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registerKeyboardNotifications()
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rebuildContent()
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}
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override func setupConstraints() {
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submitButton.snp.makeConstraints { make in
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make.leading.trailing.equalTo(view.safeAreaLayoutGuide).inset(18)
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make.bottom.equalTo(view.safeAreaLayoutGuide).inset(12)
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make.height.equalTo(52)
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}
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scrollView.snp.makeConstraints { make in
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make.top.leading.trailing.equalTo(view.safeAreaLayoutGuide)
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make.bottom.equalTo(submitButton.snp.top).offset(-12)
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}
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contentStack.snp.makeConstraints { make in
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make.edges.equalTo(scrollView.contentLayoutGuide).inset(UIEdgeInsets(top: 16, left: 18, bottom: 28, right: 18))
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make.width.equalTo(scrollView.frameLayoutGuide).offset(-36)
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}
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}
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override func bindActions() {
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viewModel.onStateChange = { [weak self] in
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Task { @MainActor in
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guard let self else { return }
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if self.textView.isFirstResponder {
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self.updateTextInputState()
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self.updateSubmitButton()
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} else {
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self.rebuildContent()
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}
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}
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}
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viewModel.onShowMessage = { [weak self] message in
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Task { @MainActor in self?.showToast(message) }
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}
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viewModel.onSubmitSuccess = { [weak self] in
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Task { @MainActor in
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guard let self else { return }
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self.onSupplementSuccess?()
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self.showToast("补充证据已提交")
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self.navigationController?.popViewController(animated: true)
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}
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}
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}
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@MainActor
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private func rebuildContent() {
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contentStack.arrangedSubviews.forEach { view in
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contentStack.removeArrangedSubview(view)
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view.removeFromSuperview()
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}
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contentStack.addArrangedSubview(makeTextCard())
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contentStack.addArrangedSubview(makeUploadCard(
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icon: "photo.fill",
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title: "上传图片",
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subtitle: "支持 JPG、PNG 格式，最多 9 张",
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attachments: viewModel.images,
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maxCount: 9,
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kind: .image
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))
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contentStack.addArrangedSubview(makeUploadCard(
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icon: "video.fill",
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title: "上传视频",
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subtitle: "支持 MP4 格式，最多 3 段",
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attachments: viewModel.videos,
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maxCount: 3,
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kind: .video
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))
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updateSubmitButton()
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}
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private func makeTextCard() -> UIView {
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let card = cardView(spacing: 10)
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card.stack.addArrangedSubview(WildReportUI.label("补充说明", font: .systemFont(ofSize: 17, weight: .bold), color: AppColor.textPrimary))
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textView.text = viewModel.text
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let inputContainer = UIView()
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inputContainer.backgroundColor = UIColor(hex: 0xFBFCFE)
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inputContainer.layer.cornerRadius = 12
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inputContainer.layer.borderWidth = 1
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inputContainer.layer.borderColor = UIColor(hex: 0xCDD5E1).cgColor
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inputContainer.addSubview(textView)
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inputContainer.addSubview(placeholderLabel)
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inputContainer.addSubview(countLabel)
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textView.snp.remakeConstraints { make in
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make.edges.equalToSuperview()
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make.height.greaterThanOrEqualTo(132)
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}
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placeholderLabel.snp.remakeConstraints { make in
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make.top.equalToSuperview().offset(18)
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make.leading.equalToSuperview().offset(14)
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make.trailing.lessThanOrEqualToSuperview().inset(14)
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}
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countLabel.snp.remakeConstraints { make in
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make.trailing.bottom.equalToSuperview().inset(12)
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}
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card.stack.addArrangedSubview(inputContainer)
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updateTextInputState()
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return card
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}
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private func makeUploadCard(
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icon: String,
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title: String,
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subtitle: String,
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attachments: [WildReportAttachment],
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maxCount: Int,
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kind: WildReportAttachmentKind
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) -> UIView {
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let card = cardView(spacing: 12)
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let header = UIStackView()
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header.axis = .horizontal
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header.alignment = .center
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header.spacing = 10
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let iconView = UIImageView(image: UIImage(systemName: icon))
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iconView.tintColor = AppColor.primary
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iconView.contentMode = .scaleAspectFit
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iconView.snp.makeConstraints { make in
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make.size.equalTo(26)
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}
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let textStack = UIStackView()
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textStack.axis = .vertical
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textStack.spacing = 4
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textStack.addArrangedSubview(WildReportUI.label(title, font: .systemFont(ofSize: 16, weight: .bold), color: AppColor.textPrimary))
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textStack.addArrangedSubview(WildReportUI.label(subtitle, font: .systemFont(ofSize: 12), color: AppColor.textSecondary, lines: 0))
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header.addArrangedSubview(iconView)
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header.addArrangedSubview(textStack)
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header.addArrangedSubview(UIView())
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card.stack.addArrangedSubview(header)
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let scroll = UIScrollView()
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scroll.showsHorizontalScrollIndicator = false
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let tiles = UIStackView()
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tiles.axis = .horizontal
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tiles.spacing = 10
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scroll.addSubview(tiles)
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tiles.snp.makeConstraints { make in
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make.edges.equalTo(scroll.contentLayoutGuide).inset(UIEdgeInsets(top: 2, left: 0, bottom: 2, right: 0))
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make.height.equalTo(scroll.frameLayoutGuide).offset(-4)
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}
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attachments.forEach { attachment in
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tiles.addArrangedSubview(WildReportAttachmentTileView(
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attachment: attachment,
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tileSize: 72,
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onPreview: { [weak self] in self?.previewAttachment(attachment) },
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onRemove: { [weak self] in self?.viewModel.removeAttachment(attachment) }
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))
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}
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if canAddAttachment(kind: kind, currentCount: attachments.count, maxCount: maxCount) {
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tiles.addArrangedSubview(WildReportAddAttachmentTileView(
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tileSize: 72,
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borderColor: AppColor.primary,
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iconColor: AppColor.primary
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) { [weak self] in
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self?.presentMediaPicker(for: WildReportPickerTarget(kind: kind))
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})
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}
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scroll.snp.makeConstraints { make in
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make.height.equalTo(76)
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}
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card.stack.addArrangedSubview(scroll)
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return card
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}
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private func cardView(spacing: CGFloat) -> WildReportCardView {
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let card = WildReportCardView(spacing: spacing, inset: 16)
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card.layer.cornerRadius = 16
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card.layer.borderColor = AppColor.cardOutline.cgColor
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return card
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}
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private func updateTextInputState() {
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placeholderLabel.isHidden = !viewModel.text.isEmpty
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countLabel.text = "\(viewModel.text.count)/500"
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}
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private func updateSubmitButton() {
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let title = viewModel.isSubmitting && !viewModel.submitProgressText.isEmpty
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? viewModel.submitProgressText
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: "提交补充证据"
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submitButton.setTitle(title, for: .normal)
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submitButton.isEnabled = !viewModel.isSubmitting
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submitButton.alpha = viewModel.isSubmitting ? 0.78 : 1
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}
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private func canAddAttachment(kind: WildReportAttachmentKind, currentCount: Int, maxCount: Int) -> Bool {
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let ownRemaining = max(0, maxCount - currentCount)
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let evidenceRemaining = max(0, 9 - viewModel.images.count - viewModel.videos.count)
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switch kind {
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case .image:
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return min(ownRemaining, evidenceRemaining) > 0
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case .video:
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return min(ownRemaining, evidenceRemaining) > 0
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case .payment:
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return false
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}
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}
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private func presentMediaPicker(for target: WildReportPickerTarget) {
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dismissKeyboard()
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let remaining = remainingSelectionCount(for: target)
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guard remaining > 0 else {
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showToast(target == .video ? "补充视频最多上传3段" : "补充证据最多上传9项")
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return
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}
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pickerTarget = target
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var configuration = PHPickerConfiguration(photoLibrary: .shared())
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configuration.selectionLimit = remaining
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configuration.filter = target == .video ? .videos : .images
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let picker = PHPickerViewController(configuration: configuration)
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picker.delegate = self
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present(picker, animated: true)
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}
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private func remainingSelectionCount(for target: WildReportPickerTarget) -> Int {
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switch target {
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case .image:
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return max(0, 9 - viewModel.images.count - viewModel.videos.count)
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case .video:
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return max(0, min(3 - viewModel.videos.count, 9 - viewModel.images.count - viewModel.videos.count))
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case .payment:
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return 0
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}
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}
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private func previewAttachment(_ attachment: WildReportAttachment) {
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guard let item = MediaPreviewItem(wildReportAttachment: attachment) else {
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showToast("当前附件暂无本地预览")
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return
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}
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presentMediaPreview(items: [item], startIndex: 0)
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}
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@objc private func submitTapped() {
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Task {
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await viewModel.submit(
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api: api,
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uploader: uploader,
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scenicId: AppStore.shared.currentScenicId
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)
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}
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}
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@objc private func dismissKeyboard() {
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view.endEditing(true)
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}
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private func registerKeyboardNotifications() {
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NotificationCenter.default.addObserver(
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self,
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selector: #selector(keyboardWillChangeFrame(_:)),
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name: UIResponder.keyboardWillChangeFrameNotification,
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object: nil
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)
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NotificationCenter.default.addObserver(
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self,
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selector: #selector(keyboardWillHide(_:)),
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name: UIResponder.keyboardWillHideNotification,
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object: nil
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)
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}
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@objc private func keyboardWillChangeFrame(_ notification: Notification) {
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guard let keyboardFrame = notification.userInfo?[UIResponder.keyboardFrameEndUserInfoKey] as? CGRect else { return }
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let keyboardFrameInView = view.convert(keyboardFrame, from: nil)
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let overlap = max(0, view.bounds.maxY - keyboardFrameInView.minY)
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updateScrollInsets(bottom: overlap + 12, notification: notification)
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scrollActiveInputIntoView(animated: true)
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}
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@objc private func keyboardWillHide(_ notification: Notification) {
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updateScrollInsets(bottom: 0, notification: notification)
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}
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private func updateScrollInsets(bottom: CGFloat, notification: Notification) {
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let duration = notification.userInfo?[UIResponder.keyboardAnimationDurationUserInfoKey] as? TimeInterval ?? 0.25
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let curveRaw = notification.userInfo?[UIResponder.keyboardAnimationCurveUserInfoKey] as? UInt ?? UIView.AnimationOptions.curveEaseInOut.rawValue
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let options = UIView.AnimationOptions(rawValue: curveRaw << 16)
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UIView.animate(withDuration: duration, delay: 0, options: options) {
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self.scrollView.contentInset.bottom = bottom
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self.scrollView.verticalScrollIndicatorInsets.bottom = bottom
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}
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}
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private func scrollActiveInputIntoView(animated: Bool) {
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guard let activeInputView else { return }
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view.layoutIfNeeded()
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let rect = activeInputView.convert(activeInputView.bounds, to: scrollView).insetBy(dx: 0, dy: -24)
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scrollView.scrollRectToVisible(rect, animated: animated)
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}
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}
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extension WildReportSupplementEvidenceViewController: PHPickerViewControllerDelegate {
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func picker(_ picker: PHPickerViewController, didFinishPicking results: [PHPickerResult]) {
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picker.dismiss(animated: true)
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guard !results.isEmpty else { return }
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let target = pickerTarget
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Task {
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do {
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let attachments = try await WildReportLocalMediaLoader.load(
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results: results,
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target: target,
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titlePrefix: target == .video ? "补充视频" : "补充图片"
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)
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await MainActor.run {
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switch target {
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case .image:
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viewModel.addImages(attachments)
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case .video:
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viewModel.addVideos(attachments)
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case .payment:
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break
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}
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}
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} catch {
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await MainActor.run { showToast(error.localizedDescription) }
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}
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}
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}
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}
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extension WildReportSupplementEvidenceViewController: UITextViewDelegate {
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func textViewDidBeginEditing(_ textView: UITextView) {
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activeInputView = textView
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DispatchQueue.main.async { [weak self] in self?.scrollActiveInputIntoView(animated: true) }
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}
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func textViewDidChange(_ textView: UITextView) {
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viewModel.updateText(textView.text)
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if textView.text != viewModel.text {
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textView.text = viewModel.text
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}
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updateTextInputState()
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}
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func textViewDidEndEditing(_ textView: UITextView) {
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if activeInputView === textView {
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activeInputView = nil
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}
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}
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}
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extension WildReportSupplementEvidenceViewController: UIGestureRecognizerDelegate {
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func gestureRecognizer(_ gestureRecognizer: UIGestureRecognizer, shouldReceive touch: UITouch) -> Bool {
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var touchedView = touch.view
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while let currentView = touchedView {
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if currentView is UIControl || currentView is UITextView {
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return false
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}
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touchedView = currentView.superview
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}
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return true
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}
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}
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