From 8247870e1e573b4c8c68e98ee78c1d2ba4b18caf Mon Sep 17 00:00:00 2001
From: Javier Cicchelli <javier@rock-n-code.com>
Date: Fri, 16 Dec 2022 23:59:26 +0100
Subject: [PATCH] Implemented the InputAlertView component for the Browse
 module.

---
 .../Browse/UI/Components/InputAlertView.swift | 134 ++++++++++++++++++
 1 file changed, 134 insertions(+)
 create mode 100644 Modules/Sources/Browse/UI/Components/InputAlertView.swift

diff --git a/Modules/Sources/Browse/UI/Components/InputAlertView.swift b/Modules/Sources/Browse/UI/Components/InputAlertView.swift
new file mode 100644
index 0000000..a1c1b36
--- /dev/null
+++ b/Modules/Sources/Browse/UI/Components/InputAlertView.swift
@@ -0,0 +1,134 @@
+//
+//  InputAlertView.swift
+//  Browse
+//
+//  Created by Javier Cicchelli on 16/12/2022.
+//  Copyright © 2022 Röck+Cöde. All rights reserved.
+//
+
+import DataModels
+import SwiftUI
+import UIKit
+
+struct InputAlertView: UIViewControllerRepresentable {
+    
+    // MARK: Bindings
+    
+    @Binding private var isPresenting: Bool
+    @Binding private var textFieldString: String
+    
+    // MARK: Properties
+    
+    private let title: String
+    private let message: String
+    private let textFieldPlaceholder: String
+    private let actions: [UIAlertAction]
+    
+    // MARK: Initialisers
+    
+    init(
+        isPresenting: Binding<Bool>,
+        title: String,
+        message: String,
+        textFieldPlaceholder: String,
+        textFieldString: Binding<String>,
+        actions: [UIAlertAction]
+    ) {
+        self.title = title
+        self.message = message
+        self.textFieldPlaceholder = textFieldPlaceholder
+        self.actions = actions
+        
+        self._isPresenting = isPresenting
+        self._textFieldString = textFieldString
+    }
+
+    // MARK: Functions
+    
+    func makeUIViewController(
+        context: UIViewControllerRepresentableContext<InputAlertView>
+    ) -> UIViewController {
+        .init()
+    }
+    
+    func updateUIViewController(
+        _ viewController: UIViewController,
+        context: UIViewControllerRepresentableContext<InputAlertView>
+    ) {
+        guard
+            context.coordinator.alert == nil,
+            isPresenting
+        else { return }
+        
+        let alertController = {
+            let alert = UIAlertController(
+                title: title,
+                message: message,
+                preferredStyle: .alert
+            )
+            
+            alert.addTextField { textField in
+                textField.placeholder = textFieldPlaceholder
+                textField.text = textFieldString
+                textField.delegate = context.coordinator
+            }
+
+            actions.forEach { action in
+                alert.addAction(action)
+            }
+            
+            return alert
+        }()
+        
+        context.coordinator.alert = alertController
+        
+        Task { @MainActor in
+            viewController.present(
+                alertController,
+                animated: true
+            ) {
+                isPresenting = false
+                context.coordinator.alert = nil
+            }
+        }
+    }
+    
+    func makeCoordinator() -> InputAlertView.Coordinator {
+        Coordinator(self)
+    }
+    
+}
+
+// MARK: - Coordinator
+
+extension InputAlertView {
+    class Coordinator: NSObject, UITextFieldDelegate {
+        
+        // MARK: Properties
+        
+        var alert: UIAlertController?
+        
+        private let component: InputAlertView
+        
+        // MARK: Initialisers
+
+        init(_ component: InputAlertView) {
+            self.component = component
+        }
+        
+        // MARK: UITextFieldDelegate
+        
+        func textField(_ textField: UITextField, shouldChangeCharactersIn range: NSRange, replacementString string: String) -> Bool {
+            component.textFieldString = {
+                if let text = textField.text as NSString? {
+                    return text.replacingCharacters(in: range, with: string)
+                } else {
+                    return .empty
+                }
+            }()
+
+            return true
+        }
+
+    }
+}