[MBL-1814] PLOT plan selector component

Kickstarter-iOS/Features/PledgeOverTime/Controller/PledgePaymentPlansViewController.swift

@@ -0,0 +1,117 @@
+import Library
+import UIKit
+
+protocol PledgePaymentPlansViewControllerDelegate: AnyObject {
+  func pledgePaymentPlansViewController(
+    _ viewController: PledgePaymentPlansViewController,
+    didSelectPaymentPlan paymentPlan: PledgePaymentPlansType
+  )
+}
+
+final class PledgePaymentPlansViewController: UIViewController {
+  // MARK: Properties
+
+  private let dataSource = PledgePaymentPlansDataSource()
+
+  private lazy var tableView: UITableView = { ContentSizeTableView(frame: .zero, style: .plain) }()
+
+  internal weak var delegate: PledgePaymentPlansViewControllerDelegate?
+
+  private let viewModel: PledgePaymentPlansViewModelType = PledgePaymentPlansViewModel()
+
+  // MARK: Lifecycle
+
+  override func viewDidLoad() {
+    super.viewDidLoad()
+
+    self.configureSubviews()
+    self.setupConstraints()
+
+    self.viewModel.inputs.viewDidLoad()
+  }
+
+  private func configureSubviews() {
+    self.tableView.dataSource = self.dataSource
+    self.tableView.delegate = self
+
+    self.view.addSubview(self.tableView)
+
+    self.tableView.registerCellClass(PledgePaymentPlanCell.self)
+  }
+
+  private func setupConstraints() {
+    self.tableView.translatesAutoresizingMaskIntoConstraints = false
+
+    NSLayoutConstraint.activate([
+      self.tableView.leadingAnchor.constraint(equalTo: self.view.leadingAnchor),
+      self.tableView.trailingAnchor.constraint(equalTo: self.view.trailingAnchor),
+      self.tableView.topAnchor.constraint(equalTo: self.view.topAnchor),
+      self.tableView.bottomAnchor.constraint(equalTo: self.view.bottomAnchor)
+    ])
+  }
+
+  // MARK: - Bind Styles
+
+  override func bindStyles() {
+    super.bindStyles()
+
+    applyWhiteBackgroundStyle(self.view)
+
+    applyTableViewStyle(self.tableView)
+  }
+
+  // MARK: - View model
+
+  override func bindViewModel() {
+    super.bindViewModel()
+
+    self.viewModel.outputs.reloadPaymentPlans.observeForUI().observeValues { [weak self] data in
+
+      guard let self = self else { return }
+
+      self.dataSource.load(data)
+      self.tableView.reloadData()
+    }
+
+    self.viewModel.outputs.notifyDelegatePaymentPlanSelected
+      .observeForUI()
+      .observeValues { [weak self] paymentPlan in
+        guard let self = self else { return }
+
+        self.delegate?.pledgePaymentPlansViewController(self, didSelectPaymentPlan: paymentPlan)
+      }
+  }
+
+  // MARK: - Configuration
+
+  func configure(with value: PledgePaymentPlansAndSelectionData) {
+    self.viewModel.inputs.configure(with: value)
+  }
+}
+
+// MARK: - UITableViewDelegate
+
+extension PledgePaymentPlansViewController: UITableViewDelegate {
+  func tableView(_ tableView: UITableView, didSelectRowAt indexPath: IndexPath) {
+    tableView.deselectRow(at: indexPath, animated: true)
+
+    let selectedCellData = self.dataSource[indexPath] as! PledgePaymentPlanCellData
+
+    self.viewModel.inputs.didSelectRowAtIndexPath(indexPath, with: selectedCellData)
+  }
+}
+
+// MARK: Styles
+
+private func applyTableViewStyle(_ tableView: UITableView) {
+  tableView.separatorInset = .zero
+  tableView.contentInsetAdjustmentBehavior = .never
+  tableView.isScrollEnabled = false
+  tableView.rowHeight = UITableView.automaticDimension
+
+  applyWhiteBackgroundStyle(tableView)
+}
+
+private func applyWhiteBackgroundStyle(_ view: UIView) {
+  view.backgroundColor = UIColor.ksr_white
+}

Kickstarter-iOS/Features/PledgeOverTime/Controller/PledgePaymentPlansViewControllerTest.swift

@@ -0,0 +1,56 @@
+@testable import Kickstarter_Framework
+@testable import Library
+import Prelude
+import SnapshotTesting
+import UIKit
+
+final class PledgePaymentPlansViewControllerTest: TestCase {
+  override func setUp() {
+    super.setUp()
+    AppEnvironment.pushEnvironment(mainBundle: Bundle.framework)
+    UIView.setAnimationsEnabled(false)
+  }
+
+  override func tearDown() {
+    AppEnvironment.popEnvironment()
+    UIView.setAnimationsEnabled(true)
+
+    super.tearDown()
+  }
+
+  func testView_PledgeInFullSelected() {
+    combos(Language.allLanguages, [Device.pad, Device.phone4_7inch]).forEach { language, device in
+      withEnvironment(language: language) {
+        let controller = PledgePaymentPlansViewController.instantiate()
+
+        let data = PledgePaymentPlansAndSelectionData(selectedPlan: .pledgeinFull)
+        controller.configure(with: data)
+
+        let (parent, _) = traitControllers(device: device, orientation: .portrait, child: controller)
+        parent.view.frame.size.height = 400
+
+        self.scheduler.advance(by: .seconds(1))
+
+        assertSnapshot(matching: parent.view, as: .image, named: "lang_\(language)_device_\(device)")
+      }
+    }
+  }
+
+  func testView_PledgeOverTimeSelected() {
+    combos(Language.allLanguages, [Device.pad, Device.phone4_7inch]).forEach { language, device in
+      withEnvironment(language: language) {
+        let controller = PledgePaymentPlansViewController.instantiate()
+
+        let data = PledgePaymentPlansAndSelectionData(selectedPlan: .pledgeOverTime)
+        controller.configure(with: data)
+
+        let (parent, _) = traitControllers(device: device, orientation: .portrait, child: controller)
+        parent.view.frame.size.height = 400
+
+        self.scheduler.advance(by: .seconds(1))
+
+        assertSnapshot(matching: parent.view, as: .image, named: "lang_\(language)_device_\(device)")
+      }
+    }
+  }
+}

Kickstarter-iOS/Features/PledgeOverTime/Datasource/PledgePaymentPlansDataSource.swift

@@ -0,0 +1,34 @@
+import Library
+import UIKit
+
+internal final class PledgePaymentPlansDataSource: ValueCellDataSource {
+  internal func load(_ data: PledgePaymentPlansAndSelectionData) {
+    self.clearValues()
+
+    let isPledgeInFullSelected = data.selectedPlan == PledgePaymentPlansType.pledgeinFull
+
+    let pledgeInFullOption = PledgePaymentPlanCellData(
+      type: PledgePaymentPlansType.pledgeinFull,
+      isSelected: isPledgeInFullSelected
+    )
+    let pledgeOverTimeOption = PledgePaymentPlanCellData(
+      type: PledgePaymentPlansType.pledgeOverTime,
+      isSelected: !isPledgeInFullSelected
+    )
+
+    self.set(
+      values: [pledgeInFullOption, pledgeOverTimeOption],
+      cellClass: PledgePaymentPlanCell.self,
+      inSection: 0
+    )
+  }
+
+  internal override func configureCell(tableCell cell: UITableViewCell, withValue value: Any) {
+    switch (cell, value) {
+    case let (cell as PledgePaymentPlanCell, value as PledgePaymentPlanCellData):
+      cell.configureWith(value: value)
+    default:
+      assertionFailure("Unrecognized combo: \(cell), \(value).")
+    }
+  }
+}

Kickstarter-iOS/Features/PledgeOverTime/Datasource/PledgePaymentPlansDataSourceTest.swift

@@ -0,0 +1,30 @@
+@testable import Kickstarter_Framework
+@testable import KsApi
+@testable import Library
+import Prelude
+import XCTest
+
+final class PledgePaymentPlansDataSourceTest: XCTestCase {
+  private let dataSource = PledgePaymentPlansDataSource()
+  private let tableView = UITableView()
+
+  func testLoad_DefaultState() {
+    let defaultData = PledgePaymentPlansAndSelectionData(selectedPlan: .pledgeinFull)
+
+    self.dataSource.load(defaultData)
+
+    XCTAssertEqual(1, self.dataSource.numberOfSections(in: self.tableView))
+
+    XCTAssertEqual(2, self.dataSource.numberOfItems(in: PledgePaymentPlansType.pledgeinFull.rawValue))
+
+    XCTAssertEqual(
+      "PledgePaymentPlanCell",
+      self.dataSource.reusableId(item: 0, section: 0)
+    )
+
+    XCTAssertEqual(
+      "PledgePaymentPlanCell",
+      self.dataSource.reusableId(item: 1, section: 0)
+    )
+  }
+}