New Post Composer, uploading avatar/banner (#818)

Mlem/API/Models/Person/APIPerson.swift

@@ -12,14 +12,14 @@ struct APIPerson: Decodable, Identifiable, Hashable {
     let id: Int
     let name: String
     var displayName: String?
-    let avatar: String?
+    var avatar: String?
     let banned: Bool
     let published: Date
     let updated: Date?
     let actorId: URL
     var bio: String?
     let local: Bool
-    let banner: String?
+    var banner: String?
     let deleted: Bool
     let sharedInboxUrl: String?
     var matrixUserId: String?

Mlem/ContentView.swift

@@ -135,6 +135,7 @@ struct ContentView: View {
                 PostComposerView(editModel: editing)
             }
             .presentationDetents([.medium, .large], selection: .constant(.large))
+            .presentationDragIndicator(.hidden)
             ._presentationBackgroundInteraction(enabledUpThrough: .medium)
         }
         .sheet(item: $quickLookState.url) { url in

Mlem/Enums/Settings/PostSortType.swift

@@ -125,7 +125,7 @@ enum PostSortType: String, Codable, CaseIterable, Identifiable {
             }
             self = value
         } else if let intValue = try? container.decode(Int.self) {
-            guard 0 ... 10 ~= intValue else {
+            guard 0...10 ~= intValue else {
                 throw DecodingError.dataCorruptedError(
                     in: container,
                     debugDescription: "Must be an integer in range 0...10."

Mlem/Models/PictrsImageModel.swift

@@ -6,6 +6,7 @@
 //
 
 import SwiftUI
+import PhotosUI
 
 struct ImageUploadResponse: Codable {
     public let msg: String?

Mlem/Views/Shared/Components/Image Upload/LinkAttachmentModel.swift

@@ -0,0 +1,186 @@
+//
+//  LinkAttachmentModel.swift
+//  Mlem
+//
+//  Created by Sjmarf on 17/12/2023.
+//
+
+import SwiftUI
+import Dependencies
+import PhotosUI
+
+class LinkAttachmentModel: ObservableObject {
+    @Dependency(\.pictrsRepository) private var pictrsRepository: PictrsRespository
+    @Dependency(\.apiClient) private var apiClient: APIClient
+    @Dependency(\.errorHandler) private var errorHandler: ErrorHandler
+
+    var uploadTask: Task<(), any Error>?
+
+    @AppStorage("promptUser.permission.privacy.allowImageUploads") var askedForPermissionToUploadImages: Bool = false
+    @AppStorage("confirmImageUploads") var confirmImageUploads: Bool = false
+
+    @Published var url: String = ""
+    @Published var imageModel: PictrsImageModel?
+
+    init(url: String) {
+        self.url = url
+    }
+
+    @Published var photosPickerItem: PhotosPickerItem?
+    @Published var showingUploadConfirmation: Bool = false
+    @Published var showingPhotosPicker: Bool = false
+    @Published var showingFilePicker: Bool = false
+
+    func attachImageAction() {
+        showingPhotosPicker = true
+    }
+
+    func attachFileAction() {
+        showingFilePicker = true
+    }
+
+    func pasteFromClipboardAction() {
+        pasteFromClipboard()
+    }
+
+    func removeLinkAction() {
+        url = ""
+        deletePictrs()
+    }
+
+    func prepareToUpload(photo: PhotosPickerItem) async {
+        do {
+            if let data = try await photo.loadTransferable(type: Data.self) {
+                DispatchQueue.main.async {
+                    self.prepareToUpload(data: data)
+                }
+            } else {
+                imageModel = .init(state: .failed("Invalid image format"))
+            }
+        } catch {
+            imageModel = .init(state: .failed(String(describing: error)))
+        }
+    }
+
+    func prepareToUpload(result: Result<URL, Error>) {
+        switch result {
+        case .success(let url):
+            do {
+                guard url.startAccessingSecurityScopedResource() else {
+                    imageModel = .init(state: .failed("Invalid permissions"))
+                    return
+                }
+                let data = try Data(contentsOf: url)
+                url.stopAccessingSecurityScopedResource()
+                prepareToUpload(data: data)
+            } catch {
+                url.stopAccessingSecurityScopedResource()
+                imageModel = .init(state: .failed(String(describing: error)))
+            }
+        case .failure(let error):
+            imageModel = .init(state: .failed(String(describing: error)))
+        }
+    }
+
+    func prepareToUpload(data: Data) {
+        imageModel = .init()
+        self.imageModel?.state = .readyToUpload(data: data)
+        if let uiImage = UIImage(data: data) {
+            self.imageModel?.image = Image(uiImage: uiImage)
+        }
+        if self.askedForPermissionToUploadImages == false || self.confirmImageUploads {
+            self.showingUploadConfirmation = true
+        } else {
+            self.uploadImage()
+        }
+    }
+
+    func pasteFromClipboard() {
+        Task {
+            if UIPasteboard.general.hasImages, let content = UIPasteboard.general.image {
+                if let data = content.pngData() {
+                    DispatchQueue.main.async {
+                        self.prepareToUpload(data: data)
+                    }
+                }
+            } else if UIPasteboard.general.hasURLs, let content = UIPasteboard.general.url {
+                DispatchQueue.main.async {
+                    self.url = content.absoluteString
+                }
+            }
+        }
+    }
+
+    func uploadImage() {
+        guard let imageModel = imageModel else { return }
+        Task(priority: .userInitiated) {
+            self.uploadTask = try await pictrsRepository.uploadImage(
+                imageModel: imageModel,
+                onUpdate: { newValue in
+                    DispatchQueue.main.async {
+                        self.imageModel = newValue
+                        switch newValue.state {
+                        case .uploaded(let file):
+                            if let file = file {
+                                do {
+                                    var components = URLComponents()
+                                    components.scheme = try self.apiClient.session.instanceUrl.scheme
+                                    components.host = try self.apiClient.session.instanceUrl.host
+                                    components.path = "/pictrs/image/\(file.file)"
+                                    self.url = components.url?.absoluteString ?? ""
+                                } catch {
+                                    self.imageModel?.state = .failed(nil)
+                                }
+                            }
+                        default:
+                            self.url = ""
+                        }
+                    }
+                }
+            )
+        }
+    }
+
+    func deletePictrs(compareUrl: String? = nil) {
+        if let task = self.uploadTask {
+            task.cancel()
+        }
+        switch self.imageModel?.state {
+        case .uploaded(file: let file):
+            if let file = file {
+                self.photosPickerItem = nil
+                Task {
+                    do {
+                        if let compareUrl {
+                            var components = URLComponents()
+                            components.scheme = try self.apiClient.session.instanceUrl.scheme
+                            components.host = try self.apiClient.session.instanceUrl.host
+                            components.path = "/pictrs/image/\(file.file)"
+                            if let imageModelUrl = components.url?.absoluteString, compareUrl != imageModelUrl {
+                                try await pictrsRepository.deleteImage(file: file)
+                                print("Deleted from pictrs")
+                                DispatchQueue.main.async {
+                                    self.imageModel = nil
+                                }
+                            }
+                        } else {
+                            try await pictrsRepository.deleteImage(file: file)
+                            print("Deleted from pictrs")
+                            DispatchQueue.main.async {
+                                self.imageModel = nil
+                            }
+                        }
+                    } catch {
+                        print("ERROR", error)
+                        errorHandler.handle(error)
+                    }
+                }
+            }
+        default:
+            self.imageModel = nil
+        }
+        if url == "" && self.imageModel != nil {
+            self.imageModel = nil
+        }
+    }
+}

Mlem/Views/Shared/Components/Image Upload/LinkAttachmentProxy.swift

@@ -0,0 +1,36 @@
+//
+//  LinkAttachmentProxy.swift
+//  Mlem
+//
+//  Created by Sjmarf on 17/12/2023.
+//
+
+import Foundation
+
+struct LinkAttachmentProxy {
+    private let model: LinkAttachmentModel
+
+    var imageModel: PictrsImageModel? {
+        return model.imageModel
+    }
+
+    func attachImageAction() {
+        model.showingPhotosPicker = true
+    }
+
+    func attachFileAction() {
+        model.showingFilePicker = true
+    }
+
+    func pasteFromClipboardAction() {
+        model.pasteFromClipboard()
+    }
+
+    func removeLinkAction() {
+        model.url = ""
+    }
+
+    init(model: LinkAttachmentModel) {
+        self.model = model
+    }
+}