Integrate feeds from good old `tst` 2019 project

11 files changed, 310 insertions, 49 deletions

diff --git a/JuickNext/FeedView.swift b/JuickNext/FeedView.swift
new file mode 100644
index 0000000..399da1f
--- /dev/null
+++ b/JuickNext/FeedView.swift
@@ -0,0 +1,55 @@
+//
+//  FeedView.swift
+//  tst
+//
+//  Created by Vitaly Takmazov on 10.12.2019.
+//  Copyright © 2019 com.juick. All rights reserved.
+//
+
+import SwiftUI
+
+struct FeedView: View {
+    @ObservedObject var messageFetcher : MessageFetcher
+    
+    let title: String
+    
+    init(_ title: String, url: String) {
+        self.title = title
+        messageFetcher = MessageFetcher(url: url)
+    }
+    
+    private var stateContent: AnyView {
+        switch messageFetcher.state {
+        case .loading:
+            return AnyView(
+                ProgressView()
+            )
+        case .fetched(let result):
+            switch result {
+            case .failure(let error):
+                return AnyView(
+                    Text(error.localizedDescription)
+                )
+            case .success(let root):
+                return AnyView(
+                    List(root) { (message: Message) in
+                        MessageView(message: message)
+                    }
+                )
+            }
+        }
+    }
+    
+    var body: some View {
+        NavigationView {
+            stateContent
+                .navigationBarTitle(Text(title), displayMode: .inline)
+        }
+    }
+}
+
+struct FeedView_Previews: PreviewProvider {
+    static var previews: some View {
+        FeedView("Discover", url: "https://api.juick.com/messages")
+    }
+}
diff --git a/JuickNext/Helpers/Image+Data.swift b/JuickNext/Helpers/Image+Data.swift
new file mode 100644
index 0000000..dee2693
--- /dev/null
+++ b/JuickNext/Helpers/Image+Data.swift
@@ -0,0 +1,35 @@
+//
+//  Image+Data.swift
+//  JuickNext
+//
+//  Created by Vitaly Takmazov on 15.05.2024.
+//  Copyright © 2024 com.juick. All rights reserved.
+//
+
+import Foundation
+import SwiftUI
+#if canImport(UIKit)
+import UIKit
+#elseif canImport(AppKit)
+import AppKit
+#endif
+extension Image {
+    /// Initializes a SwiftUI `Image` from data.
+    init?(data: Data) {
+#if canImport(UIKit)
+        if let uiImage = UIImage(data: data) {
+            self.init(uiImage: uiImage)
+        } else {
+            return nil
+        }
+#elseif canImport(AppKit)
+        if let nsImage = NSImage(data: data) {
+            self.init(nsImage: nsImage)
+        } else {
+            return nil
+        }
+#else
+        return nil
+#endif
+    }
+}
diff --git a/JuickNext/ImageFetcher.swift b/JuickNext/ImageFetcher.swift
new file mode 100644
index 0000000..f76c0ba
--- /dev/null
+++ b/JuickNext/ImageFetcher.swift
@@ -0,0 +1,28 @@
+//
+//  ImageFetcher.swift
+//  tst
+//
+//  Created by Vitaly Takmazov on 10.12.2019.
+//  Copyright © 2019 com.juick. All rights reserved.
+//
+
+import Foundation
+import Combine
+
+class ImageFetcher: ObservableObject {
+    
+    @Published var data: Data = Data()
+    
+    init(url: String) {
+        guard let imageUrl = URL(string: url) else {
+            return
+        }
+        
+        URLSession.shared.dataTask(with: imageUrl) { (data, _, _) in
+            guard let data = data else { return }
+            DispatchQueue.main.async { [weak self] in
+                self?.data = data
+            }
+        }.resume()
+    }
+}
diff --git a/JuickNext/LoadableImageView.swift b/JuickNext/LoadableImageView.swift
new file mode 100644
index 0000000..6a41dc2
--- /dev/null
+++ b/JuickNext/LoadableImageView.swift
@@ -0,0 +1,29 @@
+//
+//  LoadableImageView.swift
+//  tst
+//
+//  Created by Vitaly Takmazov on 10.12.2019.
+//  Copyright © 2019 com.juick. All rights reserved.
+//
+
+import SwiftUI
+
+struct LoadableImageView: View {
+    @ObservedObject var imageFetcher: ImageFetcher
+    
+    init(with urlString: String) {
+        imageFetcher = ImageFetcher(url: urlString)
+    }
+    
+    var body: some View {
+        if let image = Image(data: imageFetcher.data) {
+            return AnyView(
+                image.resizable()
+            )
+        } else {
+            return AnyView(
+                ProgressView()
+            )
+        }
+    }
+}
diff --git a/JuickNext/LoadableState.swift b/JuickNext/LoadableState.swift
new file mode 100644
index 0000000..a45edb2
--- /dev/null
+++ b/JuickNext/LoadableState.swift
@@ -0,0 +1,25 @@
+//
+//  LoadableState.swift
+//  tst
+//
+//  Created by Vitaly Takmazov on 10.12.2019.
+//  Copyright © 2019 com.juick. All rights reserved.
+//
+
+import Foundation
+
+enum LoadableState<T> {
+    case loading
+    case fetched(Result<T, FetchError>)
+}
+
+enum FetchError: Error {
+    case error(String)
+    
+    var localizedDescription: String {
+        switch self {
+        case .error(let message):
+            return message
+        }
+    }
+}
diff --git a/JuickNext/MessageFetcher.swift b/JuickNext/MessageFetcher.swift
new file mode 100644
index 0000000..565cca0
--- /dev/null
+++ b/JuickNext/MessageFetcher.swift
@@ -0,0 +1,39 @@
+//
+//  MessageFetcher.swift
+//  tst
+//
+//  Created by Vitaly Takmazov on 10.12.2019.
+//  Copyright © 2019 com.juick. All rights reserved.
+//
+
+import Foundation
+import Combine
+
+class MessageFetcher: ObservableObject {
+    
+    @Published var state: LoadableState<Root> = .loading
+    
+    init(url: String) {
+        guard let apiUrl = URL(string: url) else {
+            state = .fetched(.failure(.error("Malformed API URL.")))
+            return
+        }
+        
+        URLSession.shared.dataTask(with: apiUrl) { [weak self] (data, _, error) in
+            if let error = error {
+                self?.state = .fetched(.failure(.error(error.localizedDescription)))
+                return
+            }
+            
+            guard let data = data else {
+                self?.state = .fetched(.failure(.error("Malformed response data")))
+                return
+            }
+            let root = try! JSONDecoder().decode(Root.self, from: data)
+            
+            DispatchQueue.main.async { [weak self] in
+                self?.state = .fetched(.success(root))
+            }
+        }.resume()
+    }
+}
diff --git a/JuickNext/MessageView.swift b/JuickNext/MessageView.swift
new file mode 100644
index 0000000..398978b
--- /dev/null
+++ b/JuickNext/MessageView.swift
@@ -0,0 +1,43 @@
+//
+//  MessageView.swift
+//  tst
+//
+//  Created by Vitaly Takmazov on 10.12.2019.
+//  Copyright © 2019 com.juick. All rights reserved.
+//
+
+import SwiftUI
+
+struct MessageView: View {
+    var message: Message
+    var body: some View {
+        VStack(alignment: .leading) {
+            HStack {
+                LoadableImageView(with: message.user.avatar ?? "")
+                    .frame(width: 48, height: 48, alignment: .center)
+                Text(message.user.name)
+                    .font(.headline)
+                    .foregroundColor(.accentColor)
+            }
+            message.tags.map {
+                Text($0.joined(separator: ", "))
+                    .font(.subheadline)
+                    .italic()
+                    .foregroundColor(.secondary)
+            }
+            Text(message.text ?? "")
+                .font(.body)
+                .padding()
+            message.attachment.map {
+                LoadableImageView(with: $0.url).scaledToFit()
+            }
+        }
+    }
+}
+
+struct MessageView_Previews: PreviewProvider {
+    static let msg = Message(id: 0, user: User(id: 0, name: "ugnich"), text: "Lorem ipsum")
+    static var previews: some View {
+        MessageView(message: msg)
+    }
+}
diff --git a/JuickNext/Models.swift b/JuickNext/Models.swift
new file mode 100644
index 0000000..77a12f5
--- /dev/null
+++ b/JuickNext/Models.swift
@@ -0,0 +1,47 @@
+//
+//  Models.swift
+//  tst
+//
+//  Created by Vitaly Takmazov on 10.12.2019.
+//  Copyright © 2019 com.juick. All rights reserved.
+//
+
+import Foundation
+
+
+typealias Model = Decodable & Identifiable
+
+typealias Root = Array<Message>
+
+struct Attachment: Decodable {
+    var url: String
+}
+
+struct Entity: Decodable {
+    var type: String
+    var text: String
+    var link: String?
+    var start: Int?
+    var end: Int?
+}
+
+struct User: Model {
+    var id: Int
+    var name: String
+    var avatar: String?
+    private enum CodingKeys : String, CodingKey {
+        case id = "uid", name = "uname", avatar
+    }
+}
+
+struct Message : Model {
+    var id: Int
+    var user: User
+    var text : String?
+    var attachment: Attachment?
+    var entities: [Entity]?
+    var tags: [String]?
+    private enum CodingKeys : String, CodingKey {
+        case id = "mid", user, text = "body", attachment, entities, tags
+    }
+}
diff --git a/JuickNext/View/ContentView.swift b/JuickNext/View/ContentView.swift
index e77d6e7..22e74e0 100644
--- a/JuickNext/View/ContentView.swift
+++ b/JuickNext/View/ContentView.swift
@@ -10,17 +10,22 @@ import SwiftUI
 
 struct ContentView: View {
     @Environment(\.horizontalSizeClass) private var size
+    
+    let today = FeedView("Today", url: "https://api.juick.com/messages?popular=1")
+    let discussions = FeedView("Discussions", url: "https://api.juick.com/messages/discussions")
+    let discover = FeedView("Discover", url: "https://api.juick.com/messages")
     var body: some View {
         let view = (size == .compact) ?
         AnyView(TabView {
-            Today()
-                .tabItem {
+            today.tabItem {
                     Image("ei-clock")
                 }
-            Discussions()
-                .tabItem {
+            discussions.tabItem {
                     Image("ei-bell")
                 }
+            discover.tabItem {
+                    Image("Discover")
+                }
         }): AnyView(NavigationView {
             VStack {
                 Text("Discussions")
diff --git a/JuickNext/View/Discussions.swift b/JuickNext/View/Discussions.swift
deleted file mode 100644
index 20e7fa8..0000000
--- a/JuickNext/View/Discussions.swift
+++ /dev/null
@@ -1,21 +0,0 @@
-//
-//  Discussions.swift
-//  Juick
-//
-//  Created by Vitaly Takmazov on 14.05.2023.
-//  Copyright © 2023 com.juick. All rights reserved.
-//
-
-import SwiftUI
-
-struct Discussions: View {
-    var body: some View {
-        Text("Discussions")
-    }
-}
-
-struct Discussions_Previews: PreviewProvider {
-    static var previews: some View {
-        Discussions()
-    }
-}
diff --git a/JuickNext/View/Today.swift b/JuickNext/View/Today.swift
deleted file mode 100644
index 161a353..0000000
--- a/JuickNext/View/Today.swift
+++ /dev/null
@@ -1,24 +0,0 @@
-//
-//  TodayView.swift
-//  Juick
-//
-//  Created by Vitaly Takmazov on 14.05.2023.
-//  Copyright © 2023 com.juick. All rights reserved.
-//
-
-import SwiftUI
-
-struct Today: View {
-    let title = "Today"
-    var body: some View {
-        NavigationView {
-            Text(title)
-        }
-    }
-}
-
-struct Today_Previews: PreviewProvider {
-    static var previews: some View {
-        Today()
-    }
-}