OhhhThatVarun

fun validateUserInput(): Boolean {

   val emailPattern = Pattern.compile("my-perfect-regex")
   val passwordPattern = Pattern.compile("my-perfect-regex")
  
    if(email == null || email.length > 30 || !emailPattern.matcher(email).matches()) {
        // Handle Email is invalid
    } else if (password == null || password.length > 30 || !passwordPattern.matcher(password).matches()) {
       // Handle Password is invalid
    } else {

OhhhThatVarun

github "OhhhThatVarun/SwDin" ~> 1.0.0

OhhhThatVarun

pod 'SwDin', '~> 1.0.0'

OhhhThatVarun

import SwDin

@UIApplicationMain
class AppDelegate: UIResponder, UIApplicationDelegate  {
  
  func application(_ application: UIApplication, didFinishLaunchingWithOptions launchOptions: [UIApplication.LaunchOptionsKey: Any]?) -> Bool {
      ...
      SwDin.start(modules: [module])
      // or SwDin.start(modules: [module], attachLogger: true)
  }

OhhhThatVarun

// Using Single here because requirement is the same instance of the DatabaseClient on every @Inject.
let injectable = Single.init { _ in DatabaseClient()}

//  Using Factory here becuase requirement is a new instance of MyViewModel on every @InjectViewModel.
let injectable = Factory.init {_ in MyViewModel()}

OhhhThatVarun

import UIKit

class FirstViewController: UIViewController {
  
  override func viewDidLoad() {
    super.viewDidLoad()
    
    // When we want to goto the SecondViewController.
    let repository = SomeRepository()
    let service = SomeService()

OhhhThatVarun

import SwDin

final class HomeViewModel: SwDinViewModel {

  @Inject
  private let dbClient: DatabaseClient
  
  @Inject
  private let apiClient: ApiClient
    

OhhhThatVarun

import UIKit
import SwDin

class HomeViewController: UIViewController {

   @InjectViewModel
   private var viewModel: HomeViewModel
  
   override func viewDidLoad() {
        super.viewDidLoad()

OhhhThatVarun

import SwDin

final class MyViewModel: SwDinViewModel {
    
    // Called whenever this ViewModel will get attached to a ViewController
    func onAttach() {
        
    }
}

OhhhThatVarun

let module = Module {
    Single.init { _ in DatabaseClient()}
    Factory.init {_ in MyViewModel()}
    Single.init { _ in ApiClient()}
}