Implement library view

6 files changed, 170 insertions, 32 deletions

diff --git a/Jel.xcodeproj/project.pbxproj b/Jel.xcodeproj/project.pbxproj
index 374ee5d..cd85c84 100644
--- a/Jel.xcodeproj/project.pbxproj
+++ b/Jel.xcodeproj/project.pbxproj
@@ -11,12 +11,12 @@
 		3D1015DC2B27F5D300F5C29A /* Model.xcdatamodeld in Sources */ = {isa = PBXBuildFile; fileRef = 3D1015DA2B27F5D300F5C29A /* Model.xcdatamodeld */; };
 		3D1015DE2B27F79900F5C29A /* DatamodelController.swift in Sources */ = {isa = PBXBuildFile; fileRef = 3D1015DD2B27F79900F5C29A /* DatamodelController.swift */; };
 		3D1015E42B28000E00F5C29A /* AuthStateController.swift in Sources */ = {isa = PBXBuildFile; fileRef = 3D1015E32B28000E00F5C29A /* AuthStateController.swift */; };
-		3D16FC3A2B2CC22A00E6D8B3 /* BlurHashKit in Frameworks */ = {isa = PBXBuildFile; productRef = 3D16FC392B2CC22A00E6D8B3 /* BlurHashKit */; };
 		3D16FC3C2B2CDFB500E6D8B3 /* LibraryView.swift in Sources */ = {isa = PBXBuildFile; fileRef = 3D16FC3B2B2CDFB500E6D8B3 /* LibraryView.swift */; };
 		3D41D1F52B2C962500E58234 /* AppearancePicker.swift in Sources */ = {isa = PBXBuildFile; fileRef = 3D41D1F42B2C962500E58234 /* AppearancePicker.swift */; };
 		3D41D1FA2B2CAE0000E58234 /* LibraryIconView.swift in Sources */ = {isa = PBXBuildFile; fileRef = 3D41D1F92B2CAE0000E58234 /* LibraryIconView.swift */; };
 		3D7709392B29139700199889 /* Pulse in Frameworks */ = {isa = PBXBuildFile; productRef = 3D7709382B29139700199889 /* Pulse */; };
 		3D77093B2B29139700199889 /* PulseUI in Frameworks */ = {isa = PBXBuildFile; productRef = 3D77093A2B29139700199889 /* PulseUI */; };
+		3D8AB2A52B36440D005BD7D0 /* BlurHashDecode.swift in Sources */ = {isa = PBXBuildFile; fileRef = 3D8AB2A42B36440D005BD7D0 /* BlurHashDecode.swift */; };
 		3D9063CB2B279A310063DD2A /* JelApp.swift in Sources */ = {isa = PBXBuildFile; fileRef = 3D9063CA2B279A310063DD2A /* JelApp.swift */; };
 		3D9063CD2B279A310063DD2A /* ContentView.swift in Sources */ = {isa = PBXBuildFile; fileRef = 3D9063CC2B279A310063DD2A /* ContentView.swift */; };
 		3D9063CF2B279A320063DD2A /* Assets.xcassets in Resources */ = {isa = PBXBuildFile; fileRef = 3D9063CE2B279A320063DD2A /* Assets.xcassets */; };
@@ -74,6 +74,7 @@
 		3D16FC3B2B2CDFB500E6D8B3 /* LibraryView.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = LibraryView.swift; sourceTree = "<group>"; };
 		3D41D1F42B2C962500E58234 /* AppearancePicker.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = AppearancePicker.swift; sourceTree = "<group>"; };
 		3D41D1F92B2CAE0000E58234 /* LibraryIconView.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = LibraryIconView.swift; sourceTree = "<group>"; };
+		3D8AB2A42B36440D005BD7D0 /* BlurHashDecode.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = BlurHashDecode.swift; sourceTree = "<group>"; };
 		3D9063C72B279A310063DD2A /* Jel.app */ = {isa = PBXFileReference; explicitFileType = wrapper.application; includeInIndex = 0; path = Jel.app; sourceTree = BUILT_PRODUCTS_DIR; };
 		3D9063CA2B279A310063DD2A /* JelApp.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = JelApp.swift; sourceTree = "<group>"; };
 		3D9063CC2B279A310063DD2A /* ContentView.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = ContentView.swift; sourceTree = "<group>"; };
@@ -101,7 +102,6 @@
 			isa = PBXFrameworksBuildPhase;
 			buildActionMask = 2147483647;
 			files = (
-				3D16FC3A2B2CC22A00E6D8B3 /* BlurHashKit in Frameworks */,
 				3D77093B2B29139700199889 /* PulseUI in Frameworks */,
 				3D7709392B29139700199889 /* Pulse in Frameworks */,
 				3D9064592B27E4C70063DD2A /* JellyfinKit in Frameworks */,
@@ -152,6 +152,7 @@
 			isa = PBXGroup;
 			children = (
 				3D91FDCC2B2907E800919017 /* JellyfinDateFormatter.swift */,
+				3D8AB2A42B36440D005BD7D0 /* BlurHashDecode.swift */,
 			);
 			path = Models;
 			sourceTree = "<group>";
@@ -284,7 +285,6 @@
 				3D9064582B27E4C70063DD2A /* JellyfinKit */,
 				3D7709382B29139700199889 /* Pulse */,
 				3D77093A2B29139700199889 /* PulseUI */,
-				3D16FC392B2CC22A00E6D8B3 /* BlurHashKit */,
 			);
 			productName = Jel;
 			productReference = 3D9063C72B279A310063DD2A /* Jel.app */;
@@ -360,7 +360,6 @@
 			mainGroup = 3D9063BE2B279A310063DD2A;
 			packageReferences = (
 				3D7709372B29139700199889 /* XCRemoteSwiftPackageReference "Pulse" */,
-				3D16FC382B2CC22A00E6D8B3 /* XCRemoteSwiftPackageReference "BlurHashKit" */,
 			);
 			productRefGroup = 3D9063C82B279A310063DD2A /* Products */;
 			projectDirPath = "";
@@ -414,6 +413,7 @@
 				3D91FDC92B28C62800919017 /* SignInView.swift in Sources */,
 				3DDD67932B293BC40026781E /* DashboardView.swift in Sources */,
 				3D41D1FA2B2CAE0000E58234 /* LibraryIconView.swift in Sources */,
+				3D8AB2A52B36440D005BD7D0 /* BlurHashDecode.swift in Sources */,
 				3DC6BA2D2B2A422300416B9F /* SettingsController.swift in Sources */,
 				3D91FDCB2B28CA2500919017 /* SignInToServerView.swift in Sources */,
 				3D16FC3C2B2CDFB500E6D8B3 /* LibraryView.swift in Sources */,
@@ -785,14 +785,6 @@
 /* End XCConfigurationList section */
 
 /* Begin XCRemoteSwiftPackageReference section */
-		3D16FC382B2CC22A00E6D8B3 /* XCRemoteSwiftPackageReference "BlurHashKit" */ = {
-			isa = XCRemoteSwiftPackageReference;
-			repositoryURL = "https://github.com/LePips/BlurHashKit";
-			requirement = {
-				kind = upToNextMinorVersion;
-				minimumVersion = 1.2.0;
-			};
-		};
 		3D7709372B29139700199889 /* XCRemoteSwiftPackageReference "Pulse" */ = {
 			isa = XCRemoteSwiftPackageReference;
 			repositoryURL = "https://github.com/kean/Pulse";
@@ -804,11 +796,6 @@
 /* End XCRemoteSwiftPackageReference section */
 
 /* Begin XCSwiftPackageProductDependency section */
-		3D16FC392B2CC22A00E6D8B3 /* BlurHashKit */ = {
-			isa = XCSwiftPackageProductDependency;
-			package = 3D16FC382B2CC22A00E6D8B3 /* XCRemoteSwiftPackageReference "BlurHashKit" */;
-			productName = BlurHashKit;
-		};
 		3D7709382B29139700199889 /* Pulse */ = {
 			isa = XCSwiftPackageProductDependency;
 			package = 3D7709372B29139700199889 /* XCRemoteSwiftPackageReference "Pulse" */;
diff --git a/Jel.xcodeproj/project.xcworkspace/xcshareddata/swiftpm/Package.resolved b/Jel.xcodeproj/project.xcworkspace/xcshareddata/swiftpm/Package.resolved
index 71669bf..e1e75ae 100644
--- a/Jel.xcodeproj/project.xcworkspace/xcshareddata/swiftpm/Package.resolved
+++ b/Jel.xcodeproj/project.xcworkspace/xcshareddata/swiftpm/Package.resolved
@@ -2,15 +2,6 @@
   "object": {
     "pins": [
       {
-        "package": "BlurHashKit",
-        "repositoryURL": "https://github.com/LePips/BlurHashKit",
-        "state": {
-          "branch": null,
-          "revision": "c0bd7423398de68cbeb3f99bff70f79c38bf36ab",
-          "version": "1.2.0"
-        }
-      },
-      {
         "package": "Get",
         "repositoryURL": "https://github.com/kean/Get",
         "state": {
diff --git a/Jel/Models/BlurHashDecode.swift b/Jel/Models/BlurHashDecode.swift
new file mode 100644
index 0000000..93c4896
--- /dev/null
+++ b/Jel/Models/BlurHashDecode.swift
@@ -0,0 +1,153 @@
+//
+//  BlurHashDecode.swift
+//  Jel
+//
+//  Created by zerocool on 12/22/23.
+//
+
+import UIKit
+
+extension UIImage {
+  public convenience init?(blurHash: String, size: CGSize, punch: Float = 1) {
+    guard blurHash.count >= 6 else { return nil }
+    
+    let sizeFlag = String(blurHash[0]).decode83()
+    let numY = (sizeFlag / 9) + 1
+    let numX = (sizeFlag % 9) + 1
+    
+    let quantisedMaximumValue = String(blurHash[1]).decode83()
+    let maximumValue = Float(quantisedMaximumValue + 1) / 166
+    
+    guard blurHash.count == 4 + 2 * numX * numY else { return nil }
+    
+    let colours: [(Float, Float, Float)] = (0 ..< numX * numY).map { i in
+      if i == 0 {
+        let value = String(blurHash[2 ..< 6]).decode83()
+        return decodeDC(value)
+      } else {
+        let value = String(blurHash[4 + i * 2 ..< 4 + i * 2 + 2]).decode83()
+        return decodeAC(value, maximumValue: maximumValue * punch)
+      }
+    }
+    
+    let width = Int(size.width)
+    let height = Int(size.height)
+    let bytesPerRow = width * 3
+    guard let data = CFDataCreateMutable(kCFAllocatorDefault, bytesPerRow * height) else { return nil }
+    CFDataSetLength(data, bytesPerRow * height)
+    guard let pixels = CFDataGetMutableBytePtr(data) else { return nil }
+    
+    for y in 0 ..< height {
+      for x in 0 ..< width {
+        var r: Float = 0
+        var g: Float = 0
+        var b: Float = 0
+        
+        for j in 0 ..< numY {
+          for i in 0 ..< numX {
+            let basis = cos(Float.pi * Float(x) * Float(i) / Float(width)) * cos(Float.pi * Float(y) * Float(j) / Float(height))
+            let colour = colours[i + j * numX]
+            r += colour.0 * basis
+            g += colour.1 * basis
+            b += colour.2 * basis
+          }
+        }
+        
+        let intR = UInt8(linearTosRGB(r))
+        let intG = UInt8(linearTosRGB(g))
+        let intB = UInt8(linearTosRGB(b))
+        
+        pixels[3 * x + 0 + y * bytesPerRow] = intR
+        pixels[3 * x + 1 + y * bytesPerRow] = intG
+        pixels[3 * x + 2 + y * bytesPerRow] = intB
+      }
+    }
+    
+    let bitmapInfo = CGBitmapInfo(rawValue: CGImageAlphaInfo.none.rawValue)
+    
+    guard let provider = CGDataProvider(data: data) else { return nil }
+    guard let cgImage = CGImage(width: width, height: height, bitsPerComponent: 8, bitsPerPixel: 24, bytesPerRow: bytesPerRow,
+                                space: CGColorSpaceCreateDeviceRGB(), bitmapInfo: bitmapInfo, provider: provider, decode: nil, shouldInterpolate: true, intent: .defaultIntent) else { return nil }
+    
+    self.init(cgImage: cgImage)
+  }
+}
+
+private func decodeDC(_ value: Int) -> (Float, Float, Float) {
+  let intR = value >> 16
+  let intG = (value >> 8) & 255
+  let intB = value & 255
+  return (sRGBToLinear(intR), sRGBToLinear(intG), sRGBToLinear(intB))
+}
+
+private func decodeAC(_ value: Int, maximumValue: Float) -> (Float, Float, Float) {
+  let quantR = value / (19 * 19)
+  let quantG = (value / 19) % 19
+  let quantB = value % 19
+  
+  let rgb = (
+    signPow((Float(quantR) - 9) / 9, 2) * maximumValue,
+    signPow((Float(quantG) - 9) / 9, 2) * maximumValue,
+    signPow((Float(quantB) - 9) / 9, 2) * maximumValue
+  )
+  
+  return rgb
+}
+
+private func signPow(_ value: Float, _ exp: Float) -> Float {
+  return copysign(pow(abs(value), exp), value)
+}
+
+private func linearTosRGB(_ value: Float) -> Int {
+  let v = max(0, min(1, value))
+  if v <= 0.0031308 { return Int(v * 12.92 * 255 + 0.5) }
+  else { return Int((1.055 * pow(v, 1 / 2.4) - 0.055) * 255 + 0.5) }
+}
+
+private func sRGBToLinear<Type: BinaryInteger>(_ value: Type) -> Float {
+  let v = Float(Int64(value)) / 255
+  if v <= 0.04045 { return v / 12.92 }
+  else { return pow((v + 0.055) / 1.055, 2.4) }
+}
+
+private let encodeCharacters: [String] = {
+  return "0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz#$%*+,-.:;=?@[]^_{|}~".map { String($0) }
+}()
+
+private let decodeCharacters: [String: Int] = {
+  var dict: [String: Int] = [:]
+  for (index, character) in encodeCharacters.enumerated() {
+    dict[character] = index
+  }
+  return dict
+}()
+
+extension String {
+  func decode83() -> Int {
+    var value: Int = 0
+    for character in self {
+      if let digit = decodeCharacters[String(character)] {
+        value = value * 83 + digit
+      }
+    }
+    return value
+  }
+}
+
+private extension String {
+  subscript (offset: Int) -> Character {
+    return self[index(startIndex, offsetBy: offset)]
+  }
+  
+  subscript (bounds: CountableClosedRange<Int>) -> Substring {
+    let start = index(startIndex, offsetBy: bounds.lowerBound)
+    let end = index(startIndex, offsetBy: bounds.upperBound)
+    return self[start...end]
+  }
+  
+  subscript (bounds: CountableRange<Int>) -> Substring {
+    let start = index(startIndex, offsetBy: bounds.lowerBound)
+    let end = index(startIndex, offsetBy: bounds.upperBound)
+    return self[start..<end]
+  }
+}
diff --git a/Jel/Views/Dashboard/Library/LibraryIconView.swift b/Jel/Views/Dashboard/Library/LibraryIconView.swift
index c4dbde0..0131ff7 100644
--- a/Jel/Views/Dashboard/Library/LibraryIconView.swift
+++ b/Jel/Views/Dashboard/Library/LibraryIconView.swift
@@ -22,6 +22,10 @@ struct LibraryIconView: View {
       AsyncImageView(imageId: library.id ?? "",
                      blurhash: library.imageBlurHashes?.primary?[library.imageTags?["Primary"] ?? ""] ?? "",
                      imageType: "Primary")
+      .aspectRatio(contentMode: .fill)
+      .frame(width: 255, height: 150)
+      .clipShape(RoundedRectangle(cornerRadius: 5))
+      
       
       Text(library.name ?? "Unknown")
         .font(.subheadline)
@@ -29,6 +33,6 @@ struct LibraryIconView: View {
   }
 }
 
-#Preview {
-  LibraryIconView(library: BaseItemDto())
-}
+//#Preview {
+//  LibraryIconView(library: BaseItemDto())
+//}
diff --git a/Jel/Views/Dashboard/Library/LibraryView.swift b/Jel/Views/Dashboard/Library/LibraryView.swift
index 39ca6ba..63bfd64 100644
--- a/Jel/Views/Dashboard/Library/LibraryView.swift
+++ b/Jel/Views/Dashboard/Library/LibraryView.swift
@@ -16,7 +16,7 @@ struct LibraryView: View {
   @State var libraries: [BaseItemDto] = []
   var body: some View {
     ScrollView(.horizontal, showsIndicators: false) {
-      LazyHStack {
+      HStack {
         ForEach(libraries) {library in
           if library.collectionType == "movies" || library.collectionType == "tvshows" {
             LibraryIconView(library: library)
diff --git a/Jel/Views/Utility/AsyncImageView.swift b/Jel/Views/Utility/AsyncImageView.swift
index bed5687..5b9f99c 100644
--- a/Jel/Views/Utility/AsyncImageView.swift
+++ b/Jel/Views/Utility/AsyncImageView.swift
@@ -6,7 +6,6 @@
 //
 
 import SwiftUI
-import BlurHashKit
 import JellyfinKit
 
 struct AsyncImageView: View {
@@ -22,12 +21,16 @@ struct AsyncImageView: View {
   var body: some View {
     VStack {
       if loading {
-        BlurHashView(blurHash: blurhash)
+        Image(uiImage: uiImage)
+          .resizable()
       } else {
         Image(uiImage: uiImage)
+          .resizable()
       }
     }
     .onAppear {
+      uiImage = UIImage(blurHash: blurhash, size: CGSize(width: 16, height: 16)) ?? UIImage()
+      
       Task {
         let request = Paths.getItemImage(itemID: imageId, imageType: imageType)
         do {