TZGyn
2d031e58a4
Drag files in Finder, hold a modifier, and drop on a wheel of outputs. Conversions run entirely on-device through ImageIO, PDFKit, AVFoundation, the bundled CLI tools, and optional ffmpeg/LibreOffice. Includes a --self-test suite (41 checks) and a --convert CLI mode so the conversion matrix can be verified without the UI.
334 lines
14 KiB
Swift
334 lines
14 KiB
Swift
import Foundation
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/// A tool: an in-place transform that is not a plain format change.
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enum ToolID: String, CaseIterable, Identifiable, Codable {
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// Images
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case compressImage, resizeImage, cropImage, rotateImage, flipImage
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case grayscaleImage, stripMetadata, watermarkImage, readQR
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// Video
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case compressVideo, trimVideo, muteVideo, speedVideo, snapshotVideo
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case videoToGIF, resizeVideo
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// Audio
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case trimAudio, normalizeAudio, channelsAudio, speedAudio, bleepAudio, compressAudio
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// PDF
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case mergePDF, splitPDF, rotatePDF, compressPDF, encryptPDF, decryptPDF
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case imagesToPDF, collageImages, extractPDFText
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// Documents
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case documentToPDF, wordCount
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// Spreadsheets
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case sheetsToCSV
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// Subtitles
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case shiftSubtitle
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// Archives
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case extractArchive, listArchive
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// Media metadata
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case mediaInfo
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var id: String { rawValue }
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var title: String {
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switch self {
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case .compressImage: return "Compress"
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case .resizeImage: return "Resize"
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case .cropImage: return "Crop"
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case .rotateImage: return "Rotate"
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case .flipImage: return "Flip"
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case .grayscaleImage: return "Grayscale"
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case .stripMetadata: return "Strip Metadata"
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case .watermarkImage: return "Watermark"
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case .readQR: return "Read QR"
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case .compressVideo: return "Compress"
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case .trimVideo: return "Trim"
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case .muteVideo: return "Mute"
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case .speedVideo: return "Speed"
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case .snapshotVideo: return "Snapshot"
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case .videoToGIF: return "To GIF"
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case .resizeVideo: return "Resize"
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case .trimAudio: return "Trim"
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case .normalizeAudio: return "Normalize"
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case .channelsAudio: return "Channels"
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case .speedAudio: return "Speed"
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case .bleepAudio: return "Bleep"
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case .compressAudio: return "Compress"
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case .mergePDF: return "Merge"
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case .splitPDF: return "Split"
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case .rotatePDF: return "Rotate"
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case .compressPDF: return "Compress"
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case .encryptPDF: return "Encrypt"
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case .decryptPDF: return "Decrypt"
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case .imagesToPDF: return "Images to PDF"
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case .collageImages: return "Collage"
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case .extractPDFText: return "Extract Text"
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case .documentToPDF: return "To PDF"
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case .wordCount: return "Statistics"
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case .sheetsToCSV: return "To CSV"
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case .shiftSubtitle: return "Shift Time"
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case .extractArchive: return "Extract"
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case .listArchive: return "List Contents"
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case .mediaInfo: return "Info"
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}
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}
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var symbol: String {
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switch self {
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case .compressImage, .compressVideo, .compressAudio, .compressPDF: return "arrow.down.right.and.arrow.up.left"
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case .resizeImage, .resizeVideo: return "arrow.up.left.and.arrow.down.right"
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case .cropImage: return "crop"
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case .rotateImage, .rotatePDF: return "rotate.right"
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case .flipImage: return "arrow.left.and.right.righttriangle.left.righttriangle.right"
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case .grayscaleImage: return "circle.lefthalf.filled"
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case .stripMetadata, .mediaInfo: return "info.circle"
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case .watermarkImage: return "signature"
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case .readQR: return "qrcode.viewfinder"
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case .trimVideo, .trimAudio: return "scissors"
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case .muteVideo, .bleepAudio: return "speaker.slash"
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case .speedVideo, .speedAudio: return "gauge.with.dots.needle.67percent"
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case .snapshotVideo: return "camera"
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case .videoToGIF: return "rectangle.stack"
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case .normalizeAudio: return "waveform.path.ecg"
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case .channelsAudio: return "speaker.wave.2"
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case .mergePDF: return "square.stack.3d.down.right"
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case .splitPDF: return "scissors"
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case .encryptPDF: return "lock"
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case .decryptPDF: return "lock.open"
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case .imagesToPDF: return "doc.badge.plus"
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case .collageImages: return "rectangle.grid.2x2"
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case .extractPDFText: return "text.viewfinder"
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case .documentToPDF: return "doc.richtext"
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case .wordCount: return "number"
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case .sheetsToCSV: return "tablecells.badge.ellipsis"
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case .shiftSubtitle: return "clock.arrow.circlepath"
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case .extractArchive: return "archivebox"
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case .listArchive: return "list.bullet.rectangle"
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}
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}
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var category: FileCategory {
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switch self {
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case .compressImage, .resizeImage, .cropImage, .rotateImage, .flipImage,
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.grayscaleImage, .stripMetadata, .watermarkImage, .readQR:
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return .image
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case .compressVideo, .trimVideo, .muteVideo, .speedVideo, .snapshotVideo,
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.videoToGIF, .resizeVideo:
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return .video
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case .trimAudio, .normalizeAudio, .channelsAudio, .speedAudio, .bleepAudio, .compressAudio:
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return .audio
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case .mergePDF, .splitPDF, .rotatePDF, .compressPDF, .encryptPDF, .decryptPDF,
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.imagesToPDF, .collageImages, .extractPDFText:
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return .pdf
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case .documentToPDF, .wordCount:
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return .document
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case .sheetsToCSV:
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return .spreadsheet
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case .shiftSubtitle:
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return .subtitle
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case .extractArchive, .listArchive:
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return .archive
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case .mediaInfo:
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return .video
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}
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}
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/// Tools that only make sense for a multi-file selection.
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var requiresMultipleFiles: Bool {
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self == .mergePDF || self == .imagesToPDF || self == .collageImages
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}
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var minimumFileCount: Int { requiresMultipleFiles ? 2 : 1 }
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/// Tools that produce a derived file instead of a transformed copy.
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var producesArtifacts: Bool {
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switch self {
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case .readQR, .extractPDFText, .listArchive, .mediaInfo, .wordCount:
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return true
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default:
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return false
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}
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}
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/// Some tools can only work on narrower inputs (PDF tools on PDFs already,
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/// video-only tools on video).
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static func tools(for category: FileCategory) -> [ToolID] {
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allCases.filter { $0.category == category }
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}
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}
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/// One editable field in a tool's options form.
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struct ToolField: Identifiable, Hashable {
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enum Kind: Hashable {
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case text
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case secret
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case integer(min: Int, max: Int)
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case decimal(min: Double, max: Double)
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case toggle
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case choice([String])
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case timecode
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}
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let id: String
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let label: String
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let kind: Kind
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let defaultValue: String
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let unit: String?
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let help: String?
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init(_ id: String, _ label: String, _ kind: Kind, default value: String, unit: String? = nil, help: String? = nil) {
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self.id = id
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self.label = label
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self.kind = kind
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self.defaultValue = value
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self.unit = unit
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self.help = help
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}
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}
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extension ToolID {
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var fields: [ToolField] {
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switch self {
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case .compressImage:
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return [ToolField("quality", "Quality", .integer(min: 1, max: 100), default: "70", unit: "%")]
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case .resizeImage:
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return [
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ToolField("width", "Max width", .integer(min: 16, max: 20000), default: "1920", unit: "px"),
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ToolField("height", "Max height", .integer(min: 16, max: 20000), default: "1920", unit: "px"),
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ToolField("percent", "…or scale", .integer(min: 1, max: 400), default: "100", unit: "%")
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]
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case .cropImage:
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return [
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ToolField("inset", "Inset from each edge", .integer(min: 0, max: 4000), default: "0", unit: "px"),
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ToolField("aspect", "Aspect", .choice(["Keep", "1:1", "4:3", "3:2", "16:9", "9:16"]), default: "Keep")
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]
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case .rotateImage, .rotatePDF:
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return [ToolField("angle", "Rotation", .choice(["90° right", "180°", "90° left"]), default: "90° right")]
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case .flipImage:
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return [ToolField("axis", "Axis", .choice(["Horizontal", "Vertical"]), default: "Horizontal")]
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case .watermarkImage:
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return [
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ToolField("text", "Text", .text, default: "©"),
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ToolField("position", "Position", .choice(["Bottom Right", "Bottom Left", "Top Right", "Top Left", "Center"]), default: "Bottom Right"),
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ToolField("opacity", "Opacity", .integer(min: 5, max: 100), default: "45", unit: "%"),
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ToolField("size", "Size", .integer(min: 8, max: 40), default: "16", unit: "% of width")
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]
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case .compressVideo:
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return [ToolField("preset", "Quality", .choice(["Low", "Medium", "High"]), default: "Medium")]
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case .trimVideo, .trimAudio:
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return [
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ToolField("start", "Start", .timecode, default: "00:00:00"),
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ToolField("end", "End", .timecode, default: "", help: "Leave empty to keep the tail")
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]
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case .speedVideo, .speedAudio:
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return [ToolField("rate", "Speed", .decimal(min: 0.25, max: 4), default: "2", unit: "×")]
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case .snapshotVideo:
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return [ToolField("at", "Timestamp", .timecode, default: "00:00:01")]
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case .videoToGIF:
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return [
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ToolField("fps", "Frame rate", .integer(min: 5, max: 30), default: "12", unit: "fps"),
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ToolField("width", "Width", .integer(min: 120, max: 1600), default: "480", unit: "px")
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]
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case .resizeVideo:
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return [ToolField("width", "Width", .integer(min: 160, max: 7680), default: "1280", unit: "px")]
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case .bleepAudio:
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return [
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ToolField("start", "Mute from", .timecode, default: "00:00:00"),
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ToolField("end", "Mute until", .timecode, default: "00:00:01")
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]
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case .compressAudio:
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return [ToolField("bitrate", "Bitrate", .choice(["64", "96", "128", "192", "256", "320"]), default: "128", unit: "kbps")]
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case .channelsAudio:
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return [ToolField("mode", "Channels", .choice(["Mono", "Stereo"]), default: "Mono")]
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case .splitPDF:
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return [ToolField("pages", "Pages per file", .integer(min: 1, max: 500), default: "1")]
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case .compressPDF:
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return [ToolField("quality", "Image quality", .integer(min: 10, max: 100), default: "55", unit: "%")]
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case .encryptPDF:
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return [
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ToolField("password", "Password", .secret, default: ""),
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ToolField("owner", "Owner password", .secret, default: "", help: "Optional, defaults to the password")
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]
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case .decryptPDF:
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return [ToolField("password", "Password", .secret, default: "")]
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case .collageImages:
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return [
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ToolField("columns", "Columns", .integer(min: 1, max: 8), default: "3"),
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ToolField("page", "Page", .choice(["A4", "Letter", "Square"]), default: "A4"),
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ToolField("margin", "Margin", .integer(min: 0, max: 120), default: "24", unit: "pt"),
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ToolField("captions", "File names", .toggle, default: "false")
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]
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case .shiftSubtitle:
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return [ToolField("offset", "Shift by", .decimal(min: -600, max: 600), default: "1", unit: "s")]
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case .listArchive, .extractArchive, .wordCount, .mediaInfo, .readQR, .stripMetadata,
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.grayscaleImage, .normalizeAudio, .extractPDFText, .documentToPDF, .sheetsToCSV,
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.muteVideo, .mergePDF, .imagesToPDF:
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return []
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}
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}
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}
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/// Values collected from a tool's options form. Round-trips through
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/// `UserDefaults` per tool so repeat use is one drop.
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struct ToolParams {
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private var storage: [String: String] = [:]
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subscript(key: String) -> String? {
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get { storage[key] }
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set { storage[key] = newValue }
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}
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func string(_ key: String, default fallback: String = "") -> String {
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let value = storage[key]?.trimmingCharacters(in: .whitespaces) ?? ""
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return value.isEmpty ? fallback : value
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}
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func int(_ key: String, default fallback: Int) -> Int {
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Int(string(key)) ?? fallback
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}
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func double(_ key: String, default fallback: Double) -> Double {
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Double(string(key)) ?? fallback
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}
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func bool(_ key: String, default fallback: Bool) -> Bool {
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guard let value = storage[key] else { return fallback }
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return value == "true" || value == "1"
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}
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static func defaults(for tool: ToolID) -> ToolParams {
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var params = ToolParams()
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for field in tool.fields {
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params[field.id] = field.defaultValue
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}
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return params
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}
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mutating func fillMissing(from tool: ToolID) {
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for field in tool.fields where storage[field.id] == nil {
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storage[field.id] = field.defaultValue
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}
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}
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var isEmpty: Bool { storage.isEmpty }
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var dictionary: [String: String] { storage }
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}
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/// Timecodes come in as `mm:ss`, `hh:mm:ss` or plain seconds.
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enum Timecode {
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static func seconds(from string: String) -> Double? {
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let trimmed = string.trimmingCharacters(in: .whitespaces)
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if trimmed.isEmpty { return nil }
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let parts = trimmed.split(separator: ":").map(String.init)
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switch parts.count {
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case 1:
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return Double(parts[0])
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case 2:
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guard let minutes = Double(parts[0]), let seconds = Double(parts[1]) else { return nil }
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return minutes * 60 + seconds
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case 3:
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guard let h = Double(parts[0]), let m = Double(parts[1]), let s = Double(parts[2]) else { return nil }
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return h * 3600 + m * 60 + s
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default:
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return nil
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}
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}
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}
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