Implement report supplement evidence flow

suixinkan/UI/WildPhotographerReport/WildPhotographerReportSubmitViewController.swift

@@ -3,12 +3,10 @@
 //  suixinkan
 //
 
-import AVFoundation
 import PhotosUI
 import QuickLook
 import SnapKit
 import UIKit
-import UniformTypeIdentifiers
 
 /// 提交举报页面，提供类型、证据、说明、定位和联系方式表单。
 final class WildPhotographerReportSubmitViewController: BaseViewController {
@@ -686,137 +684,6 @@ extension WildPhotographerReportSubmitViewController: UIGestureRecognizerDelegat
     }
 }
 
-/// 提交页本地媒体选择目标。
-private enum WildReportPickerTarget: Equatable {
-    case image
-    case video
-    case payment
-
-    init(kind: WildReportAttachmentKind) {
-        switch kind {
-        case .image: self = .image
-        case .video: self = .video
-        case .payment: self = .payment
-        }
-    }
-
-    var attachmentKind: WildReportAttachmentKind {
-        switch self {
-        case .image: return .image
-        case .video: return .video
-        case .payment: return .payment
-        }
-    }
-
-    var titlePrefix: String {
-        switch self {
-        case .image: return "现场图片"
-        case .video: return "现场视频"
-        case .payment: return "支付截图"
-        }
-    }
-
-    var limitMessage: String {
-        switch self {
-        case .image: return "现场证据最多上传9项"
-        case .video: return "现场视频最多上传3段"
-        case .payment: return "支付截图最多上传3张"
-        }
-    }
-}
-
-/// 提交页 PHPicker 结果加载器，将图片/视频保存为可预览和待上传的本地文件。
-private enum WildReportLocalMediaLoader {
-    static func load(results: [PHPickerResult], target: WildReportPickerTarget) async throws -> [WildReportAttachment] {
-        var attachments: [WildReportAttachment] = []
-        for result in results {
-            let attachment = target == .video
-                ? try await loadVideo(from: result.itemProvider, target: target)
-                : try await loadImage(from: result.itemProvider, target: target)
-            attachments.append(attachment)
-        }
-        return attachments
-    }
-
-    private static func loadImage(from provider: NSItemProvider, target: WildReportPickerTarget) async throws -> WildReportAttachment {
-        try await withCheckedThrowingContinuation { continuation in
-            guard provider.canLoadObject(ofClass: UIImage.self) else {
-                continuation.resume(throwing: OSSUploadError.unsupportedFileType)
-                return
-            }
-            provider.loadObject(ofClass: UIImage.self) { object, error in
-                if let error {
-                    continuation.resume(throwing: error)
-                    return
-                }
-                guard let image = object as? UIImage,
-                      let data = image.jpegData(compressionQuality: 0.9) else {
-                    continuation.resume(throwing: OSSUploadError.emptyFile)
-                    return
-                }
-                do {
-                    let fileName = "report_image_\(UUID().uuidString).jpg"
-                    let url = try write(data: data, fileName: fileName)
-                    continuation.resume(returning: WildReportAttachment(
-                        kind: target.attachmentKind,
-                        title: target.titlePrefix,
-                        localFileURL: url,
-                        fileName: fileName
-                    ))
-                } catch {
-                    continuation.resume(throwing: error)
-                }
-            }
-        }
-    }
-
-    private static func loadVideo(from provider: NSItemProvider, target: WildReportPickerTarget) async throws -> WildReportAttachment {
-        try await withCheckedThrowingContinuation { continuation in
-            provider.loadFileRepresentation(forTypeIdentifier: UTType.movie.identifier) { url, error in
-                if let error {
-                    continuation.resume(throwing: error)
-                    return
-                }
-                guard let url else {
-                    continuation.resume(throwing: OSSUploadError.emptyFile)
-                    return
-                }
-                do {
-                    let ext = url.pathExtension.isEmpty ? "mp4" : url.pathExtension
-                    let fileName = "report_video_\(UUID().uuidString).\(ext)"
-                    let targetURL = try temporaryFileURL(fileName: fileName)
-                    if FileManager.default.fileExists(atPath: targetURL.path) {
-                        try FileManager.default.removeItem(at: targetURL)
-                    }
-                    try FileManager.default.copyItem(at: url, to: targetURL)
-                    continuation.resume(returning: WildReportAttachment(
-                        kind: target.attachmentKind,
-                        title: target.titlePrefix,
-                        localFileURL: targetURL,
-                        fileName: fileName
-                    ))
-                } catch {
-                    continuation.resume(throwing: error)
-                }
-            }
-        }
-    }
-
-    private static func write(data: Data, fileName: String) throws -> URL {
-        let url = try temporaryFileURL(fileName: fileName)
-        try data.write(to: url, options: .atomic)
-        return url
-    }
-
-    private static func temporaryFileURL(fileName: String) throws -> URL {
-        let directory = FileManager.default.temporaryDirectory.appendingPathComponent("wild_report_media", isDirectory: true)
-        if !FileManager.default.fileExists(atPath: directory.path) {
-            try FileManager.default.createDirectory(at: directory, withIntermediateDirectories: true)
-        }
-        return directory.appendingPathComponent(fileName)
-    }
-}
-
 /// 提交页步骤标题，复刻参考页左侧蓝色竖条与选填标识。
 private final class WildReportSectionTitleView: UIView {
     init(index: Int, title: String, optional: Bool) {
@@ -899,169 +766,6 @@ private final class WildReportTypeOptionButton: UIControl {
     }
 }
 
-/// 提交页附件缩略 tile，优先展示本地图片或视频封面。
-private final class WildReportAttachmentTileView: UIControl {
-    private let gradientLayer = CAGradientLayer()
-    private let previewAction: () -> Void
-    private let removeAction: () -> Void
-
-    init(
-        attachment: WildReportAttachment,
-        onPreview: @escaping () -> Void,
-        onRemove: @escaping () -> Void
-    ) {
-        self.previewAction = onPreview
-        self.removeAction = onRemove
-        super.init(frame: .zero)
-        layer.cornerRadius = 10
-        clipsToBounds = false
-
-        gradientLayer.cornerRadius = 10
-        let colors: [UIColor] = attachment.kind == .video
-            ? [UIColor(hex: 0xB7D8FF), UIColor(hex: 0x4C8FEF)]
-            : [UIColor(hex: 0xCFE6FF), UIColor(hex: 0x7EB4FF)]
-        gradientLayer.colors = colors.map(\.cgColor)
-        gradientLayer.startPoint = CGPoint(x: 0, y: 0)
-        gradientLayer.endPoint = CGPoint(x: 1, y: 1)
-        layer.insertSublayer(gradientLayer, at: 0)
-
-        let thumbnailView = UIImageView()
-        thumbnailView.image = WildReportAttachmentThumbnailFactory.thumbnail(for: attachment)
-        thumbnailView.contentMode = .scaleAspectFill
-        thumbnailView.clipsToBounds = true
-        thumbnailView.layer.cornerRadius = 10
-        thumbnailView.isUserInteractionEnabled = false
-        thumbnailView.isHidden = thumbnailView.image == nil
-        addSubview(thumbnailView)
-        thumbnailView.snp.makeConstraints { make in
-            make.edges.equalToSuperview()
-        }
-
-        let icon = UIImageView(image: UIImage(systemName: attachment.kind == .video ? "play.circle.fill" : "mountain.2.fill"))
-        icon.tintColor = UIColor.white.withAlphaComponent(0.95)
-        icon.contentMode = .scaleAspectFit
-        icon.isHidden = attachment.kind != .video && thumbnailView.image != nil
-        addSubview(icon)
-        icon.snp.makeConstraints { make in
-            make.center.equalToSuperview()
-            make.size.equalTo(attachment.kind == .video ? 30 : 26)
-        }
-
-        let removeButton = UIButton(type: .system)
-        removeButton.setImage(UIImage(systemName: "xmark.circle.fill"), for: .normal)
-        removeButton.setPreferredSymbolConfiguration(UIImage.SymbolConfiguration(pointSize: 17, weight: .semibold), forImageIn: .normal)
-        removeButton.tintColor = UIColor(hex: 0x8D93A1)
-        removeButton.backgroundColor = .white
-        removeButton.layer.cornerRadius = 14
-        removeButton.layer.shadowColor = UIColor.black.cgColor
-        removeButton.layer.shadowOpacity = 0.10
-        removeButton.layer.shadowRadius = 4
-        removeButton.layer.shadowOffset = CGSize(width: 0, height: 2)
-        removeButton.addTarget(self, action: #selector(removeTapped), for: .touchUpInside)
-        addSubview(removeButton)
-        removeButton.snp.makeConstraints { make in
-            make.top.trailing.equalToSuperview().inset(-2)
-            make.size.equalTo(34)
-        }
-
-        addTarget(self, action: #selector(previewTapped), for: .touchUpInside)
-        snp.makeConstraints { make in
-            make.size.equalTo(58)
-        }
-    }
-
-    @available(*, unavailable)
-    required init?(coder: NSCoder) {
-        fatalError("init(coder:) has not been implemented")
-    }
-
-    override func layoutSubviews() {
-        super.layoutSubviews()
-        gradientLayer.frame = bounds
-    }
-
-    @objc private func previewTapped() {
-        previewAction()
-    }
-
-    @objc private func removeTapped() {
-        removeAction()
-    }
-}
-
-/// 提交页附件封面生成器，负责从本地图片或视频文件提取缩略图。
-private enum WildReportAttachmentThumbnailFactory {
-    static func thumbnail(for attachment: WildReportAttachment) -> UIImage? {
-        guard let url = attachment.localFileURL else { return nil }
-        switch attachment.kind {
-        case .image, .payment:
-            return UIImage(contentsOfFile: url.path)
-        case .video:
-            return videoThumbnail(url: url)
-        }
-    }
-
-    private static func videoThumbnail(url: URL) -> UIImage? {
-        let asset = AVURLAsset(url: url)
-        let generator = AVAssetImageGenerator(asset: asset)
-        generator.appliesPreferredTrackTransform = true
-        generator.maximumSize = CGSize(width: 160, height: 160)
-        do {
-            let cgImage = try generator.copyCGImage(at: CMTime(seconds: 0.1, preferredTimescale: 600), actualTime: nil)
-            return UIImage(cgImage: cgImage)
-        } catch {
-            return nil
-        }
-    }
-}
-
-/// 提交页添加附件 tile，白底虚线加号。
-private final class WildReportAddAttachmentTileView: UIControl {
-    private let tapAction: () -> Void
-    private let borderLayer = CAShapeLayer()
-
-    init(action: @escaping () -> Void) {
-        self.tapAction = action
-        super.init(frame: .zero)
-        backgroundColor = .white
-        layer.cornerRadius = 10
-
-        borderLayer.strokeColor = UIColor(hex: 0xCDD5E1).cgColor
-        borderLayer.fillColor = UIColor.clear.cgColor
-        borderLayer.lineWidth = 1
-        borderLayer.lineDashPattern = [5, 4]
-        layer.addSublayer(borderLayer)
-
-        let icon = UIImageView(image: UIImage(systemName: "plus"))
-        icon.tintColor = UIColor(hex: 0x8D93A1)
-        icon.contentMode = .scaleAspectFit
-        addSubview(icon)
-        icon.snp.makeConstraints { make in
-            make.center.equalToSuperview()
-            make.size.equalTo(30)
-        }
-
-        addTarget(self, action: #selector(tapped), for: .touchUpInside)
-        snp.makeConstraints { make in
-            make.size.equalTo(58)
-        }
-    }
-
-    @available(*, unavailable)
-    required init?(coder: NSCoder) {
-        fatalError("init(coder:) has not been implemented")
-    }
-
-    override func layoutSubviews() {
-        super.layoutSubviews()
-        borderLayer.path = UIBezierPath(roundedRect: bounds, cornerRadius: 10).cgPath
-    }
-
-    @objc private func tapped() {
-        tapAction()
-    }
-}
-
 /// 举报成功页面，展示编号、上传摘要和处理进度。
 final class WildPhotographerReportSuccessViewController: BaseViewController {
     private let viewModel: WildPhotographerReportSuccessViewModel