100 lines
3.2 KiB
Swift
100 lines
3.2 KiB
Swift
//
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// ViewController.swift
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// EmployeeDirectory
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//
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// Created by Matt Bruce on 1/20/25.
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//
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import UIKit
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import Combine
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class EmployeesViewController: UIViewController {
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private let tableView = UITableView()
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private let activityIndicator = UIActivityIndicatorView(style: .large)
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private let viewModel = EmployeesViewModel()
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private var cancellables = Set<AnyCancellable>()
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public override func viewDidLoad() {
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super.viewDidLoad()
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setupUI()
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bindViewModel()
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viewModel.changeMode(to: .empty)
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//viewModel.fetchEmployees()
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}
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private func setupUI() {
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view.backgroundColor = .white
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// Configure TableView
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tableView.register(UITableViewCell.self, forCellReuseIdentifier: "cell")
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tableView.dataSource = self
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view.addSubview(tableView)
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tableView.frame = view.bounds
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// Configure Activity Indicator
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activityIndicator.center = view.center
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view.addSubview(activityIndicator)
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}
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private func bindViewModel() {
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viewModel.$employees
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.receive(on: RunLoop.main)
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.sink { [weak self] _ in
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self?.updateFooter()
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self?.tableView.reloadData()
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self?.tableView.refreshControl?.endRefreshing()
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}
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.store(in: &cancellables)
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viewModel.$isLoading
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.receive(on: RunLoop.main)
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.sink { [weak self] isLoading in
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if isLoading {
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self?.activityIndicator.startAnimating()
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} else {
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self?.activityIndicator.stopAnimating()
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}
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}
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.store(in: &cancellables)
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viewModel.$errorMessage
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.receive(on: RunLoop.main)
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.sink { [weak self] _ in
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self?.updateFooter()
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}
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.store(in: &cancellables)
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}
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private func updateFooter() {
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var message: String? {
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guard !viewModel.isLoading else { return nil }
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return viewModel.errorMessage ?? (viewModel.employees.isEmpty ? "No employees found, please try to refresh." : nil)
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}
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if let message, !viewModel.isLoading {
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let footerView = UILabel()
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footerView.font = .systemFont(ofSize: 17, weight: .medium)
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footerView.text = message
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footerView.frame = CGRect(x: 0, y: 0, width: tableView.frame.width, height: 150)
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tableView.tableFooterView = footerView
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} else {
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tableView.tableFooterView = nil
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}
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}
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}
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extension EmployeesViewController: UITableViewDataSource {
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public func tableView(_ tableView: UITableView, numberOfRowsInSection section: Int) -> Int {
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return viewModel.employees.count
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}
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public func tableView(_ tableView: UITableView, cellForRowAt indexPath: IndexPath) -> UITableViewCell {
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let cell = tableView.dequeueReusableCell(withIdentifier: "cell", for: indexPath)
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let employee = viewModel.employees[indexPath.row]
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cell.textLabel?.text = employee.fullName
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cell.detailTextLabel?.text = employee.emailAddress
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return cell
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}
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}
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