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| 1 | +import Foundation |
| 2 | +import UniformTypeIdentifiers |
| 3 | + |
| 4 | +enum MediaKind: String, Codable { |
| 5 | + case image |
| 6 | + case video |
| 7 | +} |
| 8 | + |
| 9 | +struct RemoteMediaItem: Identifiable, Equatable { |
| 10 | + let id: String |
| 11 | + let url: URL |
| 12 | + let kind: MediaKind |
| 13 | +} |
| 14 | + |
| 15 | +struct LocalMediaItem: Equatable { |
| 16 | + let url: URL |
| 17 | + let kind: MediaKind |
| 18 | +} |
| 19 | + |
| 20 | +enum MediaNoteSupport { |
| 21 | + static let noteStorageKey = "pinstick-note" |
| 22 | + static let localMediaBookmarkKey = "pinstick-local-media-bookmark" |
| 23 | + |
| 24 | + private static let imageExtensions = ["avif", "bmp", "gif", "jpg", "jpeg", "png", "svg", "webp"] |
| 25 | + private static let videoExtensions = ["m4v", "mov", "mp4", "ogg", "ogv", "webm"] |
| 26 | + private static let trailingPunctuation = CharacterSet(charactersIn: "),.!?;:") |
| 27 | + |
| 28 | + static func classifyMediaURL(_ url: URL) -> MediaKind? { |
| 29 | + let path = url.path.lowercased() |
| 30 | + let ext = (path as NSString).pathExtension |
| 31 | + if imageExtensions.contains(ext) { |
| 32 | + return .image |
| 33 | + } |
| 34 | + if videoExtensions.contains(ext) { |
| 35 | + return .video |
| 36 | + } |
| 37 | + return nil |
| 38 | + } |
| 39 | + |
| 40 | + static func classifyLocalFile(url: URL) -> MediaKind? { |
| 41 | + if let type = try? url.resourceValues(forKeys: [.contentTypeKey]).contentType { |
| 42 | + if type.conforms(to: .image) { |
| 43 | + return .image |
| 44 | + } |
| 45 | + if type.conforms(to: .movie) || type.conforms(to: .video) { |
| 46 | + return .video |
| 47 | + } |
| 48 | + } |
| 49 | + return classifyMediaURL(url) |
| 50 | + } |
| 51 | + |
| 52 | + static func parseRemoteMedia(from noteText: String) -> [RemoteMediaItem] { |
| 53 | + var items: [RemoteMediaItem] = [] |
| 54 | + var seen = Set<String>() |
| 55 | + |
| 56 | + let markdownPattern = #"!\[[^\]]*\]\((https?://[^)\s]+)\)"# |
| 57 | + if let regex = try? NSRegularExpression(pattern: markdownPattern) { |
| 58 | + let range = NSRange(noteText.startIndex..<noteText.endIndex, in: noteText) |
| 59 | + regex.enumerateMatches(in: noteText, range: range) { match, _, _ in |
| 60 | + guard let match, |
| 61 | + match.numberOfRanges > 1, |
| 62 | + let urlRange = Range(match.range(at: 1), in: noteText) else { return } |
| 63 | + appendRemoteURL(String(noteText[urlRange]), to: &items, seen: &seen) |
| 64 | + } |
| 65 | + } |
| 66 | + |
| 67 | + let urlPattern = #"https?://[^\s<>"')\]]+"# |
| 68 | + if let regex = try? NSRegularExpression(pattern: urlPattern) { |
| 69 | + let range = NSRange(noteText.startIndex..<noteText.endIndex, in: noteText) |
| 70 | + regex.enumerateMatches(in: noteText, range: range) { match, _, _ in |
| 71 | + guard let match, let urlRange = Range(match.range, in: noteText) else { return } |
| 72 | + appendRemoteURL(String(noteText[urlRange]), to: &items, seen: &seen) |
| 73 | + } |
| 74 | + } |
| 75 | + |
| 76 | + return items |
| 77 | + } |
| 78 | + |
| 79 | + static func removeRemoteMedia(url: URL, from noteText: String) -> String { |
| 80 | + let urlString = url.absoluteString |
| 81 | + var updated = noteText |
| 82 | + |
| 83 | + let markdownPattern = #"!\[[^\]]*\]\(\#(NSRegularExpression.escapedPattern(for: urlString))\)\s*"# |
| 84 | + if let regex = try? NSRegularExpression(pattern: markdownPattern) { |
| 85 | + updated = regex.stringByReplacingMatches( |
| 86 | + in: updated, |
| 87 | + range: NSRange(updated.startIndex..<updated.endIndex, in: updated), |
| 88 | + withTemplate: "" |
| 89 | + ) |
| 90 | + } |
| 91 | + |
| 92 | + updated = updated.replacingOccurrences(of: urlString, with: "") |
| 93 | + while updated.contains("\n\n\n") { |
| 94 | + updated = updated.replacingOccurrences(of: "\n\n\n", with: "\n\n") |
| 95 | + } |
| 96 | + return updated.trimmingCharacters(in: .whitespacesAndNewlines) |
| 97 | + } |
| 98 | + |
| 99 | + static func saveLocalMediaBookmark(for url: URL) { |
| 100 | + guard url.startAccessingSecurityScopedResource() else { return } |
| 101 | + defer { url.stopAccessingSecurityScopedResource() } |
| 102 | + |
| 103 | + do { |
| 104 | + let data = try url.bookmarkData( |
| 105 | + options: .withSecurityScope, |
| 106 | + includingResourceValuesForKeys: nil, |
| 107 | + relativeTo: nil |
| 108 | + ) |
| 109 | + UserDefaults.standard.set(data, forKey: localMediaBookmarkKey) |
| 110 | + } catch { |
| 111 | + NSLog("Failed to save media bookmark: \(error.localizedDescription)") |
| 112 | + } |
| 113 | + } |
| 114 | + |
| 115 | + static func loadLocalMedia() -> LocalMediaItem? { |
| 116 | + guard let data = UserDefaults.standard.data(forKey: localMediaBookmarkKey) else { |
| 117 | + return nil |
| 118 | + } |
| 119 | + |
| 120 | + var isStale = false |
| 121 | + do { |
| 122 | + let url = try URL( |
| 123 | + resolvingBookmarkData: data, |
| 124 | + options: .withSecurityScope, |
| 125 | + relativeTo: nil, |
| 126 | + bookmarkDataIsStale: &isStale |
| 127 | + ) |
| 128 | + if isStale { |
| 129 | + saveLocalMediaBookmark(for: url) |
| 130 | + } |
| 131 | + guard url.startAccessingSecurityScopedResource() else { return nil } |
| 132 | + guard let kind = classifyLocalFile(url: url) else { |
| 133 | + url.stopAccessingSecurityScopedResource() |
| 134 | + return nil |
| 135 | + } |
| 136 | + return LocalMediaItem(url: url, kind: kind) |
| 137 | + } catch { |
| 138 | + NSLog("Failed to resolve media bookmark: \(error.localizedDescription)") |
| 139 | + return nil |
| 140 | + } |
| 141 | + } |
| 142 | + |
| 143 | + static func clearLocalMedia() { |
| 144 | + if let existing = loadLocalMedia() { |
| 145 | + existing.url.stopAccessingSecurityScopedResource() |
| 146 | + } |
| 147 | + UserDefaults.standard.removeObject(forKey: localMediaBookmarkKey) |
| 148 | + } |
| 149 | + |
| 150 | + private static func appendRemoteURL( |
| 151 | + _ rawURL: String, |
| 152 | + to items: inout [RemoteMediaItem], |
| 153 | + seen: inout Set<String> |
| 154 | + ) { |
| 155 | + let trimmed = rawURL.trimmingCharacters(in: trailingPunctuation) |
| 156 | + guard let url = URL(string: trimmed), |
| 157 | + let kind = classifyMediaURL(url), |
| 158 | + seen.insert(trimmed).inserted else { return } |
| 159 | + items.append(RemoteMediaItem(id: trimmed, url: url, kind: kind)) |
| 160 | + } |
| 161 | +} |
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