128 lines
4.2 KiB
Swift
128 lines
4.2 KiB
Swift
//
|
|
// ViewController.swift
|
|
// EmployeeDirectory
|
|
//
|
|
// Created by Matt Bruce on 1/20/25.
|
|
//
|
|
|
|
import UIKit
|
|
import Combine
|
|
|
|
class EmployeesViewController: UIViewController {
|
|
private let tableView = UITableView()
|
|
private let activityIndicator = UIActivityIndicatorView(style: .large)
|
|
private let modeSegmentedControl = UISegmentedControl(items: EmployeeServiceMode.allCases.map{ $0.rawValue } )
|
|
private let viewModel = EmployeesViewModel()
|
|
private var cancellables = Set<AnyCancellable>()
|
|
private var footerView: TableFooterView?
|
|
|
|
public override func viewDidLoad() {
|
|
super.viewDidLoad()
|
|
setupUI()
|
|
bindViewModel()
|
|
viewModel.fetchEmployees()
|
|
}
|
|
|
|
private func setupUI() {
|
|
view.backgroundColor = .white
|
|
|
|
// Configure TableView
|
|
tableView.register(UITableViewCell.self, forCellReuseIdentifier: "cell")
|
|
tableView.dataSource = self
|
|
view.addSubview(tableView)
|
|
tableView.frame = view.bounds
|
|
|
|
//add pull to refresh
|
|
tableView.refreshControl = UIRefreshControl()
|
|
tableView.refreshControl?.addTarget(self, action: #selector(didPullToRefresh), for: .valueChanged)
|
|
|
|
// Configure Activity Indicator
|
|
activityIndicator.center = view.center
|
|
view.addSubview(activityIndicator)
|
|
|
|
// Configure Mode Selector
|
|
modeSegmentedControl.selectedSegmentIndex = 0
|
|
modeSegmentedControl.addTarget(self, action: #selector(onServiceModeChange), for: .valueChanged)
|
|
navigationItem.titleView = modeSegmentedControl
|
|
}
|
|
|
|
private func bindViewModel() {
|
|
viewModel.$employees
|
|
.receive(on: RunLoop.main)
|
|
.sink { [weak self] _ in
|
|
self?.updateFooter()
|
|
self?.tableView.reloadData()
|
|
self?.tableView.refreshControl?.endRefreshing()
|
|
}
|
|
.store(in: &cancellables)
|
|
|
|
viewModel.$isLoading
|
|
.receive(on: RunLoop.main)
|
|
.sink { [weak self] isLoading in
|
|
if isLoading {
|
|
self?.activityIndicator.startAnimating()
|
|
} else {
|
|
self?.activityIndicator.stopAnimating()
|
|
}
|
|
}
|
|
.store(in: &cancellables)
|
|
|
|
viewModel.$errorMessage
|
|
.receive(on: RunLoop.main)
|
|
.sink { [weak self] _ in
|
|
self?.updateFooter()
|
|
}
|
|
.store(in: &cancellables)
|
|
}
|
|
|
|
private func updateFooter() {
|
|
var message: String? {
|
|
guard !viewModel.isLoading else { return nil }
|
|
return viewModel.errorMessage ?? (viewModel.employees.isEmpty ? "No employees found, please try to refresh." : nil)
|
|
}
|
|
|
|
if let message, !viewModel.isLoading {
|
|
// Lazy initialize footerView if needed
|
|
if footerView == nil {
|
|
footerView = TableFooterView(message: message)
|
|
} else { // Update the message
|
|
footerView?.update(message: message)
|
|
}
|
|
tableView.tableFooterView = footerView
|
|
} else {
|
|
tableView.tableFooterView = nil
|
|
}
|
|
}
|
|
}
|
|
|
|
extension EmployeesViewController {
|
|
@objc private func didPullToRefresh() {
|
|
viewModel.fetchEmployees()
|
|
}
|
|
|
|
@objc private func onServiceModeChange(_ sender: UISegmentedControl) {
|
|
let selectedMode: EmployeeServiceMode
|
|
switch sender.selectedSegmentIndex {
|
|
case 0: selectedMode = .production
|
|
case 1: selectedMode = .malformed
|
|
case 2: selectedMode = .empty
|
|
default: return
|
|
}
|
|
viewModel.changeMode(to: selectedMode)
|
|
}
|
|
}
|
|
|
|
extension EmployeesViewController: UITableViewDataSource {
|
|
public func tableView(_ tableView: UITableView, numberOfRowsInSection section: Int) -> Int {
|
|
return viewModel.employees.count
|
|
}
|
|
|
|
public func tableView(_ tableView: UITableView, cellForRowAt indexPath: IndexPath) -> UITableViewCell {
|
|
let cell = tableView.dequeueReusableCell(withIdentifier: "cell", for: indexPath)
|
|
let employee = viewModel.employees[indexPath.row]
|
|
cell.textLabel?.text = employee.fullName
|
|
cell.detailTextLabel?.text = employee.emailAddress
|
|
return cell
|
|
}
|
|
}
|