organised the project for the first time

StickerSlack/Trie/Trie.swift

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+//
+//  Trie.swift
+//  StickerSlack
+//
+//  Created by neon443 on 03/11/2025.
+//
+
+import Foundation
+import SwiftUI
+import Combine
+
+class TrieNode: ObservableObject {
+	@Published var children: [Character: TrieNode] = [:]
+	@Published var isEndOfWord: Bool = false
+}
+
+class Trie: ObservableObject {
+	@Published var root: TrieNode = TrieNode()
+	@Published var dict: [String:Emoji] = [:]
+	
+	func insert(word: String, emoji: Emoji) {
+		let word = word.lowercased()
+		var currentNode = root
+		let indices = word.indices
+		let last = indices.last
+		
+		for i in indices {
+			let char = word[i]
+			if let node = currentNode.children[char] {
+				currentNode = node
+			} else {
+				currentNode.children[char] = TrieNode()
+				currentNode = currentNode.children[char]!
+			}
+			if i == last {
+				currentNode.isEndOfWord = true
+			}
+		}
+	}
+	
+	func search(for query: String) -> Bool {
+		var currentNode = root
+		
+		for char in query.lowercased() {
+			if let node = currentNode.children[char] {
+				currentNode = node
+			} else {
+				return false
+			}
+		}
+		return currentNode.isEndOfWord
+	}
+	
+	func search(prefix prefixQuery: String) -> [String] {
+		guard !prefixQuery.isEmpty else { return [] }
+		let prefixQuery = prefixQuery.lowercased()
+		var currentNode = root
+		
+		for char in prefixQuery {
+			guard let child = currentNode.children[char] else {
+				return []
+			}
+			currentNode = child
+		}
+		
+		return collectWords(startingWith: prefixQuery, from: currentNode)
+	}
+	
+	func collectWords(startingWith: String, from node: TrieNode) -> [String] {
+		var results: [String] = []
+		
+		if node.isEndOfWord {
+			results.append(startingWith)
+		}
+		for child in node.children {
+			results += collectWords(startingWith: startingWith+String(child.key), from: child.value)
+		}
+		return results
+	}
+}