update

Author: swiftuiux

README.md

@@ -21,7 +21,7 @@ This package uses declarative approach to declare parameters for the video compo
                 Ext("mp4")
                 Gravity(.resizeAspectFill)
                 ErrorGroup{
-                    EText("Not found")
+                    EColor(.accentColor)
                     EFontSize(27)
                 }
             }
@@ -38,7 +38,7 @@ This package uses declarative approach to declare parameters for the video compo
             }
         } 
 ```  
-If you add any setting twice or more the first one only will be applied. You can group error settings in group **ErrorGroup** or just pass all settings as a linear list of settings. You don't need to follow some specific order for settings, just pass in arbitrary oder settings you are interested in. The only required setting is **FileName**.
+You can group error settings in group **ErrorGroup** or just pass all settings as a linear list of settings. You don't need to follow some specific order for settings, just pass in an arbitrary oder you are interested in. The only required setting is **FileName**.
 
 ### Settings
 
@@ -47,7 +47,7 @@ If you add any setting twice or more the first one only will be applied. You can
 |**FileName("swipe")**| Name of the video to play| - |
 |**Ext("mp4")**| Video extension | "mp4" |
 |**Gravity(.resizeAspectFill)**| A structure that defines how a layer displays a player’s visual content within the layer’s bounds | .resizeAspect |
-|**EText("Not found")**| Error message text| "Resource is not found" |
+|**EColor(.accentColor)**| Error message text color| .red |
 |**EFontSize(27)**| Size of the error text | 17.0 |
 ## SwiftUI example for the package
 [ SwiftUI loop video player example](https://github.com/The-Igor/swiftui-loop-videoplayer-example)

Sources/swiftui-loop-videoplayer/LoopPlayerView.swift

@@ -29,19 +29,19 @@ public struct LoopPlayerView: UIViewRepresentable {
             fileName: String,
             ext: String = "mp4",
             gravity: AVLayerVideoGravity = .resizeAspect,
-            eText : String = "Resource is not found",
+            eColor : Color = .accentColor,
             eFontSize : CGFloat = 17.0
-        ) {
-            self.settings = Settings{
-                FileName(fileName)
-                Ext(ext)
-                Gravity(gravity)
-                ErrorGroup{
-                    EText(eText)
-                    EFontSize(eFontSize)
-                }
+    ) {
+        settings = Settings{
+            FileName(fileName)
+            Ext(ext)
+            Gravity(gravity)
+            ErrorGroup{
+                EColor(eColor)
+                EFontSize(eFontSize)
             }
         }
+    }
 
     /// Player initializer in a declarative way
     /// - Parameter settings: Set of settings
@@ -58,26 +58,22 @@ public struct LoopPlayerView: UIViewRepresentable {
     /// - Parameter context: Contains details about the current state of the system
     /// - Returns: View
     public func makeUIView(context: Context) -> UIView {
+        
         let name = settings.name
         let ext = settings.ext
         let gravity = settings.gravity
+        let color = settings.errorColor
+        let fontSize = settings.errorFontSize
+        
+        guard settings.areUnique else{
+            return errorTpl(.settingsNotUnique, color, fontSize)
+        }
+        
         guard let view = LoopingPlayerUIView(name, width: ext, gravity: gravity) else{
-            return errorTpl()
+            return errorTpl(.fileNotFound(name), color, fontSize)
     }
        return view
     }
-    
-    // MARK: - Private
-        
-    /// - Returns: Error view
-    private func errorTpl() -> ErrorMsgTextView{
-        let textView = ErrorMsgTextView()
-        textView.backgroundColor = .clear
-        textView.text = settings.errorText
-        textView.textAlignment = .center
-        textView.font = UIFont.systemFont(ofSize: settings.errorFontSize)
-        return textView
-    }
 }
 
 
@@ -94,3 +90,14 @@ fileprivate class ErrorMsgTextView: UITextView {
         }
     }
 }
+
+/// - Returns: Error view
+fileprivate func errorTpl(_ error : VPErrors,_ color : Color, _ fontSize: CGFloat) -> ErrorMsgTextView{
+    let textView = ErrorMsgTextView()
+    textView.backgroundColor = .clear
+    textView.text = error.description
+    textView.textAlignment = .center
+    textView.font = UIFont.systemFont(ofSize: fontSize)
+    textView.textColor = UIColor(color)
+    return textView
+}

Sources/swiftui-loop-videoplayer/enum/Setting.swift

@@ -7,6 +7,7 @@
 
 import Foundation
 import AVKit
+import SwiftUI
 
 /// Settings for loop video player
 @available(iOS 14.0, *)
@@ -27,6 +28,9 @@ public enum Setting: Equatable{
     /// Size of the error text
     case errorFontSize(CGFloat)
 
+    /// Color of the error text
+    case errorColor(Color)
+    
     /// Case name
     var caseName: String {
         Mirror(reflecting: self).children.first?.label ?? "\(self)"
@@ -42,28 +46,3 @@ public enum Setting: Equatable{
         return firstChild.value
     }
 }
-
-@available(iOS 14.0, *)
-extension Array where Element == Setting{
-    
-    /// Find first setting by case name
-    /// - Parameter name: Case name
-    /// - Returns: Setting
-    private func first(_ name : String) -> Setting?{
-        self.first(where: { $0.caseName == name })
-    }
-    
-    
-    /// Fetch associated value
-    /// - Parameters:
-    ///   - name: Case name
-    ///   - defaulted: Default value
-    /// - Returns: Associated value
-    func fetch<T>(by name : String, defaulted : T) -> T{
-        guard let value = first(name)?.associatedValue as? T else {
-            return defaulted
-        }
-        
-        return value
-    }
-}

Sources/swiftui-loop-videoplayer/enum/VPErrors.swift

@@ -0,0 +1,23 @@
+//
+//  File.swift
+//  
+//
+//  Created by Igor on 09.07.2023.
+//
+
+import Foundation
+
+enum VPErrors : Error, CustomStringConvertible{
+    
+    case fileNotFound(String)
+    
+    case settingsNotUnique
+    
+    var description: String{
+        switch(self){
+            case .fileNotFound(let name) : return "File not found \(name)"
+        case .settingsNotUnique : return "Settings are not unique"
+            
+        }
+    }
+}

Sources/swiftui-loop-videoplayer/ext+/Array+.swift

@@ -0,0 +1,33 @@
+//
+//  Array+.swift
+//  
+//
+//  Created by Igor on 09.07.2023.
+//
+
+import Foundation
+
+@available(iOS 14.0, *)
+extension Array where Element == Setting{
+    
+    /// Find first setting by case name
+    /// - Parameter name: Case name
+    /// - Returns: Setting
+    private func first(_ name : String) -> Setting?{
+        self.first(where: { $0.caseName == name })
+    }
+    
+    
+    /// Fetch associated value
+    /// - Parameters:
+    ///   - name: Case name
+    ///   - defaulted: Default value
+    /// - Returns: Associated value
+    func fetch<T>(by name : String, defaulted : T) -> T{
+        guard let value = first(name)?.associatedValue as? T else {
+            return defaulted
+        }
+        
+        return value
+    }
+}

Sources/swiftui-loop-videoplayer/settings/errors/EColor.swift

@@ -0,0 +1,26 @@
+//
+//  EText.swift
+//  
+//
+//  Created by Igor on 07.07.2023.
+//
+
+import SwiftUI
+
+@available(iOS 14.0, *)
+public struct EColor: SettingsConvertible{
+        
+    /// Error color
+    private let value : Color
+    
+    // MARK: - Life circle
+
+    /// - Parameter value: Error color
+    public init(_ value: Color) { self.value = value }
+    
+    /// Fetch settings
+    @_spi(Private)
+    public func asSettings() -> [Setting] {
+        [.errorColor(value)]
+    }
+}

Sources/swiftui-loop-videoplayer/settings/errors/EText.swift

@@ -5,7 +5,7 @@
 //  Created by Igor on 07.07.2023.
 //
 
-import Foundation
+import SwiftUI
 import AVKit
 
 @available(iOS 14.0, *)
@@ -20,27 +20,41 @@ public struct Settings{
     /// A structure that defines how a layer displays a player’s visual content within the layer’s bounds
     public let gravity: AVLayerVideoGravity
 
-    /// Error message text
-    public let errorText : String
+    /// Error message text color
+    public let errorColor : Color
 
     /// Size of the error text Default : 17.0
     public let errorFontSize : CGFloat
+        
+    /// Is settings are unique
+    private let unique : Bool
 
+    public var areUnique : Bool {
+        unique
+    }
 
     // MARK: - Life circle
 
     public init(@SettingsBuilder builder: () -> [Setting]){
         let settings = builder()
 
+        unique = check(settings)
+        
         name = settings.fetch(by : "name", defaulted: "")
 
         ext = settings.fetch(by : "ext", defaulted: "mp4")
 
         gravity = settings.fetch(by : "gravity", defaulted: .resizeAspect)
 
-        errorText = settings.fetch(by : "errorText", defaulted: "Resource is not found")
+        errorColor = settings.fetch(by : "errorColor", defaulted: .red)
 
         errorFontSize = settings.fetch(by : "errorFontSize", defaulted: 17)
     }
 }
 
+fileprivate func check(_ settings : [Setting]) -> Bool{
+    let cases : [String] = settings.map{ $0.caseName }
+    let set = Set(cases)
+    return cases.count == set.count    
+}
+