Add support for SPM

Sources/EmojiKitLibrary/EmojiManager.swift

@@ -0,0 +1,63 @@
+//
+//  EmojiManager.swift
+//  Travely
+//
+//  Created by Niklas Amslgruber on 13.06.23.
+//
+
+import Foundation
+
+public enum EmojiManager {
+    
+    public enum Version: Int {
+        case v14 = 14
+        case v15 = 15
+        
+        public var fileName: String {
+            return "emojis_v\(rawValue)"
+        }
+        
+        public static func getSupportedVersion() -> Version {
+            if #available(iOS 16.4, *) {
+                return .v15
+            } else {
+                return .v14
+            }
+        }
+    }
+
+    /// Returns all emojis for a specific version
+    /// - Parameters:
+    ///   - version: The specific version you want to fetch (default: the highest supported version for a device's iOS version)
+    ///   - showAllVariations: Some emojis inlcude skin type variations which increases the number of emojis drastically. (default: only the yellow neutral emojis are returned)
+    /// - Returns: Array of categories with all emojis that are assigned to each category
+    public static func getAvailableEmojis(version: Version = .getSupportedVersion(), showAllVariations: Bool = false) -> [EmojiCategory] {
+        if let url = Bundle.main.url(forResource: version.fileName, withExtension: "json"), let content = try? Data(contentsOf: url), let result = try? JSONDecoder().decode([EmojiCategory].self, from: content) {
+            var filteredEmojis: [EmojiCategory] = []
+            for category in result {
+                let supportedEmojis = category.values.filter({
+                    showAllVariations ? true : isNeutralEmoji(for: $0)
+                })
+                filteredEmojis.append(EmojiCategory(name: category.name, values: supportedEmojis))
+            }
+            return filteredEmojis
+        }
+        return []
+    }
+    
+    private static func isNeutralEmoji(for emoji: String) -> Bool {
+        let unicodes = getUnicodes(emoji: emoji)
+        let colors = ["1F3FB", "1F3FC", "1F3FD", "1F3FE", "1F3FF"]
+        
+        for color in colors where unicodes.contains(color) {
+            return false
+        }
+        return true
+    }
+    
+    private static func getUnicodes(emoji: String) -> [String] {
+        let unicodeScalars = emoji.unicodeScalars
+        let unicodes = unicodeScalars.map { $0.value }
+        return unicodes.map { String($0, radix: 16, uppercase: true) }
+    }
+}