added poll detail scene with mock data

2026-04-22 17:42:45 +02:00 · 2023-01-19 15:42:45 +01:00
parent da17249200
commit 84e8d879bd
14 changed files with 804 additions and 5 deletions
@@ -15,17 +15,21 @@
 //

 import CommonKit
+import MatrixSDK
 import SwiftUI

 struct PollHistoryCoordinatorParameters {
    let mode: PollHistoryMode
+    let session: MXSession
    let room: MXRoom
+    let navigationRouter: NavigationRouterType
 }

-final class PollHistoryCoordinator: Coordinator, Presentable {
+final class PollHistoryCoordinator: NSObject, Coordinator, Presentable {
    private let parameters: PollHistoryCoordinatorParameters
    private let pollHistoryHostingController: UIViewController
    private var pollHistoryViewModel: PollHistoryViewModelProtocol
+    private let navigationRouter: NavigationRouterType
    
    // Must be used only internally
    var childCoordinators: [Coordinator] = []
@@ -37,6 +41,7 @@ final class PollHistoryCoordinator: Coordinator, Presentable {
        let view = PollHistory(viewModel: viewModel.context)
        pollHistoryViewModel = viewModel
        pollHistoryHostingController = VectorHostingController(rootView: view)
+        navigationRouter = parameters.navigationRouter
    }
    
    // MARK: - Public
@@ -44,11 +49,44 @@ final class PollHistoryCoordinator: Coordinator, Presentable {
    func start() {
        MXLog.debug("[PollHistoryCoordinator] did start.")
        pollHistoryViewModel.completion = { [weak self] result in
-            self?.completion?()
+            switch result {
+            case .showPollDetail(let poll):
+                self?.showPollDetail(poll)
+            }
        }
    }
    
+    func showPollDetail(_ poll: PollListData) {
+        let detailCoordinator: PollHistoryDetailCoordinator = .init(parameters: .init(pollHistoryDetails: .dummy, session: parameters.session, room: parameters.room))
+        detailCoordinator.toPresentable().presentationController?.delegate = self
+        detailCoordinator.completion = { [weak self, weak detailCoordinator] result in
+            guard let self = self, let coordinator = detailCoordinator else { return }
+            switch result {
+            case .dismiss:
+                self.toPresentable().dismiss(animated: true)
+                self.remove(childCoordinator: coordinator)
+            default:
+                break
+            }
+        }
+        
+        add(childCoordinator: detailCoordinator)
+        detailCoordinator.start()
+        toPresentable().present(detailCoordinator.toPresentable(), animated: true)
+    }
+    
    func toPresentable() -> UIViewController {
        pollHistoryHostingController
    }
 }
+
+// MARK: UIAdaptivePresentationControllerDelegate
+
+extension PollHistoryCoordinator: UIAdaptivePresentationControllerDelegate {
+    func presentationControllerDidDismiss(_ presentationController: UIPresentationController) {
+        guard let coordinator = childCoordinators.last else {
+            return
+        }
+        remove(childCoordinator: coordinator)
+    }
+}
@@ -0,0 +1,105 @@
+//
+// Copyright 2021 New Vector Ltd
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+// http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+//
+
+import CommonKit
+import SwiftUI
+import Combine
+
+struct PollHistoryDetailCoordinatorParameters {
+    let pollHistoryDetails: PollHistoryDetails
+    let session: MXSession
+    let room: MXRoom
+}
+
+final class PollHistoryDetailCoordinator: Coordinator, Presentable {
+    private let parameters: PollHistoryDetailCoordinatorParameters
+    private let pollHistoryDetailHostingController: UIViewController
+    private var pollHistoryDetailViewModel: PollHistoryDetailViewModelProtocol
+    private let selectedAnswerIdentifiersSubject = PassthroughSubject<[String], Never>()
+    private var cancellables = Set<AnyCancellable>()
+    private var indicatorPresenter: UserIndicatorTypePresenterProtocol
+    private var loadingIndicator: UserIndicator?
+
+    // Must be used only internally
+    var childCoordinators: [Coordinator] = []
+    var completion: ((PollHistoryDetailViewModelResult) -> Void)?
+    
+    init(parameters: PollHistoryDetailCoordinatorParameters) {
+        self.parameters = parameters
+        
+        let viewModel = PollHistoryDetailViewModel(pollHistoryDetails: parameters.pollHistoryDetails)
+        let view = PollHistoryDetail(viewModel: viewModel.context)
+        pollHistoryDetailViewModel = viewModel
+
+        pollHistoryDetailHostingController = VectorHostingController(rootView: view)
+        
+        indicatorPresenter = UserIndicatorTypePresenter(presentingViewController: pollHistoryDetailHostingController)
+        
+        viewModel.completion = { [weak self] result in
+            guard let self = self else { return }
+            switch result {
+            case .selectedAnswerOptionsWithIdentifiers(let identifiers):
+                self.selectedAnswerIdentifiersSubject.send(identifiers)
+            case .dismiss:
+                self.completion?(.dismiss)
+            }
+        }
+        selectedAnswerIdentifiersSubject
+            .debounce(for: 2.0, scheduler: RunLoop.main)
+            .removeDuplicates()
+            .sink { [weak self] identifiers in
+                guard let self = self else { return }
+
+//                self.parameters.room.sendPollResponse(for: parameters.pollEvent,
+//                                                      withAnswerIdentifiers: identifiers,
+//                                                      threadId: nil,
+//                                                      localEcho: nil, success: nil) { [weak self] error in
+//                    guard let self = self else { return }
+//
+//                    MXLog.error("[TimelinePollCoordinator]] Failed submitting response", context: error)
+//
+//                    self.viewModel.showAnsweringFailure()
+//                }
+            }
+            .store(in: &cancellables)
+    }
+    
+    // MARK: - Public
+    
+    func start() {
+        MXLog.debug("[PollHistoryDetailCoordinator] did start.")
+
+    }
+    
+    func toPresentable() -> UIViewController {
+        pollHistoryDetailHostingController
+    }
+    
+    // MARK: - Private
+    
+    /// Show an activity indicator whilst loading.
+    /// - Parameters:
+    ///   - label: The label to show on the indicator.
+    ///   - isInteractionBlocking: Whether the indicator should block any user interaction.
+    private func startLoading(label: String = VectorL10n.loading, isInteractionBlocking: Bool = true) {
+        loadingIndicator = indicatorPresenter.present(.loading(label: label, isInteractionBlocking: isInteractionBlocking))
+    }
+    
+    /// Hide the currently displayed activity indicator.
+    private func stopLoading() {
+        loadingIndicator = nil
+    }
+}
@@ -0,0 +1,55 @@
+//
+// Copyright 2021 New Vector Ltd
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+// http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+//
+
+import Foundation
+import SwiftUI
+
+enum MockPollHistoryDetailScreenState: MockScreenState, CaseIterable {
+    case openDisclosed
+    case closedDisclosed
+    case openUndisclosed
+    case closedUndisclosed
+    case closedPollEnded
+    
+    var screenType: Any.Type {
+        PollHistoryDetails.self
+    }
+    
+    var poll: PollHistoryDetails {
+        let answerOptions = [TimelinePollAnswerOption(id: "1", text: "First", count: 10, winner: false, selected: false),
+                             TimelinePollAnswerOption(id: "2", text: "Second", count: 5, winner: false, selected: true),
+                             TimelinePollAnswerOption(id: "3", text: "Third", count: 15, winner: true, selected: false)]
+        
+        let poll = PollHistoryDetails(question: "Question",
+                                       answerOptions: answerOptions,
+                                       closed: self == .closedDisclosed || self == .closedUndisclosed ? true : false,
+                                       totalAnswerCount: 20,
+                                       type: self == .closedDisclosed || self == .openDisclosed ? .disclosed : .undisclosed,
+                                       eventType: self == .closedPollEnded ? .ended : .started,
+                                       maxAllowedSelections: 1,
+                                       hasBeenEdited: false,
+                                       hasDecryptionError: false)
+        return poll
+    }
+    
+    var screenView: ([Any], AnyView) {
+
+        
+        let viewModel = PollHistoryDetailViewModel(pollHistoryDetails: poll)
+        
+        return ([viewModel], AnyView(PollHistoryDetail(viewModel: viewModel.context)))
+    }
+}
@@ -0,0 +1,88 @@
+//
+// Copyright 2021 New Vector Ltd
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+// http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+//
+
+import Foundation
+
+// MARK: - Coordinator
+
+typealias PollHistoryDetailViewModelCallback = (PollHistoryDetailViewModelResult) -> Void
+
+enum PollHistoryDetailViewModelResult {
+    case selectedAnswerOptionsWithIdentifiers([String])
+    case dismiss
+}
+
+// MARK: View model
+
+struct PollHistoryDetails {
+    
+    public static let dummy: PollHistoryDetails = MockPollHistoryDetailScreenState.openUndisclosed.poll
+    
+    var question: String
+    var answerOptions: [TimelinePollAnswerOption]
+    var closed: Bool
+    var totalAnswerCount: UInt
+    var type: TimelinePollType
+    var eventType: TimelinePollEventType
+    var maxAllowedSelections: UInt
+    var hasBeenEdited = true
+    var hasDecryptionError: Bool
+    
+    init(question: String, answerOptions: [TimelinePollAnswerOption],
+         closed: Bool,
+         totalAnswerCount: UInt,
+         type: TimelinePollType,
+         eventType: TimelinePollEventType,
+         maxAllowedSelections: UInt,
+         hasBeenEdited: Bool,
+         hasDecryptionError: Bool) {
+        self.question = question
+        self.answerOptions = answerOptions
+        self.closed = closed
+        self.totalAnswerCount = totalAnswerCount
+        self.type = type
+        self.eventType = eventType
+        self.maxAllowedSelections = maxAllowedSelections
+        self.hasBeenEdited = hasBeenEdited
+        self.hasDecryptionError = hasDecryptionError
+    }
+    
+    var hasCurrentUserVoted: Bool {
+        answerOptions.filter { $0.selected == true }.count > 0
+    }
+    
+    var shouldDiscloseResults: Bool {
+        if closed {
+            return totalAnswerCount > 0
+        } else {
+            return type == .disclosed && totalAnswerCount > 0 && hasCurrentUserVoted
+        }
+    }
+    
+    var representsPollEndedEvent: Bool {
+        eventType == .ended
+    }
+}
+
+// MARK: View
+
+struct PollHistoryDetailViewState: BindableState {
+    var poll: PollHistoryDetails
+}
+
+enum PollHistoryDetailViewAction {
+    case selectAnswerOptionWithIdentifier(String)
+}
@@ -0,0 +1,115 @@
+//
+// Copyright 2021 New Vector Ltd
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+// http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+//
+
+import Combine
+import SwiftUI
+
+typealias PollHistoryDetailViewModelType = StateStoreViewModel<PollHistoryDetailViewState, PollHistoryDetailViewAction>
+
+class PollHistoryDetailViewModel: PollHistoryDetailViewModelType, PollHistoryDetailViewModelProtocol {
+    // MARK: - Properties
+
+    // MARK: Private
+    
+    // MARK: Public
+
+    var completion: PollHistoryDetailViewModelCallback?
+    
+    // MARK: - Setup
+    
+    init(pollHistoryDetails: PollHistoryDetails) {
+        super.init(initialViewState: PollHistoryDetailViewState(poll: pollHistoryDetails))
+
+    }
+    
+    // MARK: - Public
+    
+    override func process(viewAction: PollHistoryDetailViewAction) {
+        switch viewAction {
+        case .selectAnswerOptionWithIdentifier(let identifier):
+            guard !state.poll.closed else {
+                return
+            }
+            
+            if state.poll.maxAllowedSelections == 1 {
+                updateSingleSelectPollLocalState(selectedAnswerIdentifier: identifier, callback: completion)
+            } else {
+                updateMultiSelectPollLocalState(&state, selectedAnswerIdentifier: identifier, callback: completion)
+            }
+        }
+    }
+
+    
+    // MARK: - TimelinePollViewModelProtocol
+    
+    func updateWithPollDetails(_ pollDetails: PollHistoryDetails) {
+        state.poll = pollDetails
+    }
+    
+    func updateSingleSelectPollLocalState(selectedAnswerIdentifier: String, callback: PollHistoryDetailViewModelCallback?) {
+        state.poll.answerOptions.updateEach { answerOption in
+            if answerOption.selected {
+                answerOption.selected = false
+                answerOption.count = UInt(max(0, Int(answerOption.count) - 1))
+                state.poll.totalAnswerCount = UInt(max(0, Int(state.poll.totalAnswerCount) - 1))
+            }
+            
+            if answerOption.id == selectedAnswerIdentifier {
+                answerOption.selected = true
+                answerOption.count += 1
+                state.poll.totalAnswerCount += 1
+            }
+        }
+        
+        informCoordinatorOfSelectionUpdate(state: state, callback: callback)
+    }
+    
+    func updateMultiSelectPollLocalState(_ state: inout PollHistoryDetailViewState, selectedAnswerIdentifier: String, callback: PollHistoryDetailViewModelCallback?) {
+        let selectedAnswerOptions = state.poll.answerOptions.filter { $0.selected == true }
+        
+        let isDeselecting = selectedAnswerOptions.filter { $0.id == selectedAnswerIdentifier }.count > 0
+        
+        if !isDeselecting, selectedAnswerOptions.count >= state.poll.maxAllowedSelections {
+            return
+        }
+        
+        state.poll.answerOptions.updateEach { answerOption in
+            if answerOption.id != selectedAnswerIdentifier {
+                return
+            }
+            
+            if answerOption.selected {
+                answerOption.selected = false
+                answerOption.count = UInt(max(0, Int(answerOption.count) - 1))
+                state.poll.totalAnswerCount = UInt(max(0, Int(state.poll.totalAnswerCount) - 1))
+            } else {
+                answerOption.selected = true
+                answerOption.count += 1
+                state.poll.totalAnswerCount += 1
+            }
+        }
+        
+        informCoordinatorOfSelectionUpdate(state: state, callback: callback)
+    }
+    
+    func informCoordinatorOfSelectionUpdate(state: PollHistoryDetailViewState, callback: PollHistoryDetailViewModelCallback?) {
+        let selectedIdentifiers = state.poll.answerOptions.compactMap { answerOption in
+            answerOption.selected ? answerOption.id : nil
+        }
+        
+        callback?(.selectedAnswerOptionsWithIdentifiers(selectedIdentifiers))
+    }
+}
@@ -0,0 +1,21 @@
+//
+// Copyright 2021 New Vector Ltd
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+// http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+//
+
+import Foundation
+
+protocol PollHistoryDetailViewModelProtocol {
+    var context: PollHistoryDetailViewModelType.Context { get }
+}
@@ -0,0 +1,38 @@
+//
+// Copyright 2021 New Vector Ltd
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+// http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+//
+
+import RiotSwiftUI
+import XCTest
+
+class PollHistoryDetailUITests: MockScreenTestCase {
+    func testPollHistoryDetailPromptRegular() {
+        let promptType = PollHistoryDetailPromptType.regular
+        app.goToScreenWithIdentifier(MockPollHistoryDetailScreenState.promptType(promptType).title)
+        
+        let title = app.staticTexts["title"]
+        XCTAssert(title.exists)
+        XCTAssertEqual(title.label, promptType.title)
+    }
+    
+    func testPollHistoryDetailPromptUpgrade() {
+        let promptType = PollHistoryDetailPromptType.upgrade
+        app.goToScreenWithIdentifier(MockPollHistoryDetailScreenState.promptType(promptType).title)
+        
+        let title = app.staticTexts["title"]
+        XCTAssert(title.exists)
+        XCTAssertEqual(title.label, promptType.title)
+    }
+}
@@ -0,0 +1,48 @@
+//
+// Copyright 2021 New Vector Ltd
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+// http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+//
+
+import XCTest
+
+@testable import RiotSwiftUI
+
+class PollHistoryDetailViewModelTests: XCTestCase {
+    private enum Constants {
+        static let counterInitialValue = 0
+    }
+    
+    var viewModel: PollHistoryDetailViewModelProtocol!
+    var context: PollHistoryDetailViewModelType.Context!
+    
+    override func setUpWithError() throws {
+        viewModel = PollHistoryDetailViewModel(promptType: .regular, initialCount: Constants.counterInitialValue)
+        context = viewModel.context
+    }
+
+    func testInitialState() {
+        XCTAssertEqual(context.viewState.count, Constants.counterInitialValue)
+    }
+
+    func testCounter() throws {
+        context.send(viewAction: .incrementCount)
+        XCTAssertEqual(context.viewState.count, 1)
+        
+        context.send(viewAction: .incrementCount)
+        XCTAssertEqual(context.viewState.count, 2)
+        
+        context.send(viewAction: .decrementCount)
+        XCTAssertEqual(context.viewState.count, 1)
+    }
+}
@@ -0,0 +1,122 @@
+//
+// Copyright 2021 New Vector Ltd
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+// http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+//
+
+import SwiftUI
+
+struct PollHistoryDetail: View {
+    // MARK: - Properties
+    
+    // MARK: Private
+    
+    @Environment(\.theme) private var theme: ThemeSwiftUI
+    
+    // MARK: Public
+    
+    @ObservedObject var viewModel: PollHistoryDetailViewModel.Context
+    
+    var body: some View {
+        let poll = viewModel.viewState.poll
+        
+        VStack(alignment: .leading, spacing: 16.0) {
+            if poll.representsPollEndedEvent {
+                Text(VectorL10n.pollTimelineEndedText)
+                    .font(theme.fonts.footnote)
+                    .foregroundColor(theme.colors.tertiaryContent)
+            }
+            
+            Text(poll.question)
+                .font(theme.fonts.bodySB)
+                .foregroundColor(theme.colors.primaryContent) +
+                Text(editedText)
+                .font(theme.fonts.footnote)
+                .foregroundColor(theme.colors.secondaryContent)
+            
+            VStack(spacing: 24.0) {
+                ForEach(poll.answerOptions) { answerOption in
+                    PollHistoryDetailAnswerOptionButton(poll: poll, answerOption: answerOption) {
+                        viewModel.send(viewAction: .selectAnswerOptionWithIdentifier(answerOption.id))
+                    }
+                }
+            }
+            .disabled(poll.closed)
+            .fixedSize(horizontal: false, vertical: true)
+            
+            Text(totalVotesString)
+                .lineLimit(2)
+                .font(theme.fonts.footnote)
+                .foregroundColor(theme.colors.tertiaryContent)
+        }
+        .padding([.horizontal], 16)
+        .padding([.top, .bottom])
+        .frame(maxWidth: .infinity, maxHeight: .infinity)
+        .background(theme.colors.background.ignoresSafeArea())
+        .navigationTitle(navigationTitle)
+//        .alert(item: $viewModel.alertInfo) { info in
+//            info.alert
+//        }
+    }
+    
+    private var navigationTitle: String {
+        let poll = viewModel.viewState.poll
+        if poll.closed {
+            return VectorL10n.pollHistoryPastSegmentTitle
+        } else {
+            return VectorL10n.pollHistoryActiveSegmentTitle
+        }
+    }
+    
+    private var totalVotesString: String {
+        let poll = viewModel.viewState.poll
+        
+        if poll.hasDecryptionError, poll.totalAnswerCount > 0 {
+            return VectorL10n.pollTimelineDecryptionError
+        }
+        
+        if poll.closed {
+            if poll.totalAnswerCount == 1 {
+                return VectorL10n.pollTimelineTotalFinalResultsOneVote
+            } else {
+                return VectorL10n.pollTimelineTotalFinalResults(Int(poll.totalAnswerCount))
+            }
+        }
+        
+        switch poll.totalAnswerCount {
+        case 0:
+            return VectorL10n.pollTimelineTotalNoVotes
+        case 1:
+            return (poll.hasCurrentUserVoted || poll.type == .undisclosed ?
+                VectorL10n.pollTimelineTotalOneVote :
+                VectorL10n.pollTimelineTotalOneVoteNotVoted)
+        default:
+            return (poll.hasCurrentUserVoted || poll.type == .undisclosed ?
+                VectorL10n.pollTimelineTotalVotes(Int(poll.totalAnswerCount)) :
+                VectorL10n.pollTimelineTotalVotesNotVoted(Int(poll.totalAnswerCount)))
+        }
+    }
+    
+    private var editedText: String {
+        viewModel.viewState.poll.hasBeenEdited ? " \(VectorL10n.eventFormatterMessageEditedMention)" : ""
+    }
+}
+
+// MARK: - Previews
+
+struct PollHistoryDetail_Previews: PreviewProvider {
+    static let stateRenderer = MockPollHistoryDetailScreenState.stateRenderer
+    static var previews: some View {
+        stateRenderer.screenGroup()
+    }
+}
@@ -0,0 +1,163 @@
+//
+// Copyright 2021 New Vector Ltd
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+// http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+//
+
+import SwiftUI
+
+struct PollHistoryDetailAnswerOptionButton: View {
+    // MARK: - Properties
+    
+    // MARK: Private
+    
+    @Environment(\.theme) private var theme: ThemeSwiftUI
+    
+    let poll: PollHistoryDetails
+    let answerOption: TimelinePollAnswerOption
+    let action: () -> Void
+    
+    // MARK: Public
+    
+    var body: some View {
+        Button(action: action) {
+            let rect = RoundedRectangle(cornerRadius: 4.0)
+            answerOptionLabel
+                .frame(maxWidth: .infinity, alignment: .leading)
+                .padding(.horizontal, 8.0)
+                .padding(.top, 12.0)
+                .padding(.bottom, 12.0)
+                .clipShape(rect)
+                .overlay(rect.stroke(borderAccentColor, lineWidth: 1.0))
+                .accentColor(progressViewAccentColor)
+        }
+        .accessibilityIdentifier("PollAnswerOption\(optionIndex)")
+    }
+    
+    var answerOptionLabel: some View {
+        VStack(alignment: .leading, spacing: 12.0) {
+            HStack(alignment: .top, spacing: 8.0) {
+                if !poll.closed {
+                    Image(uiImage: answerOption.selected ? Asset.Images.pollCheckboxSelected.image : Asset.Images.pollCheckboxDefault.image)
+                }
+                
+                Text(answerOption.text)
+                    .font(theme.fonts.body)
+                    .foregroundColor(theme.colors.primaryContent)
+                    .accessibilityIdentifier("PollAnswerOption\(optionIndex)Label")
+                
+                if poll.closed, answerOption.winner {
+                    Spacer()
+                    Image(uiImage: Asset.Images.pollWinnerIcon.image)
+                }
+            }
+            
+            if poll.type == .disclosed || poll.closed {
+                HStack {
+                    ProgressView(value: Double(poll.shouldDiscloseResults ? answerOption.count : 0),
+                                 total: Double(poll.totalAnswerCount))
+                        .progressViewStyle(LinearProgressViewStyle())
+                        .scaleEffect(x: 1.0, y: 1.2, anchor: .center)
+                        .accessibilityIdentifier("PollAnswerOption\(optionIndex)Progress")
+                    
+                    if poll.shouldDiscloseResults {
+                        Text(answerOption.count == 1 ? VectorL10n.pollTimelineOneVote : VectorL10n.pollTimelineVotesCount(Int(answerOption.count)))
+                            .font(theme.fonts.footnote)
+                            .foregroundColor(poll.closed && answerOption.winner ? theme.colors.accent : theme.colors.secondaryContent)
+                            .accessibilityIdentifier("PollAnswerOption\(optionIndex)Count")
+                    }
+                }
+            }
+        }
+    }
+    
+    var borderAccentColor: Color {
+        guard !poll.closed else {
+            return (answerOption.winner ? theme.colors.accent : theme.colors.quinaryContent)
+        }
+        
+        return answerOption.selected ? theme.colors.accent : theme.colors.quinaryContent
+    }
+    
+    var progressViewAccentColor: Color {
+        guard !poll.closed else {
+            return (answerOption.winner ? theme.colors.accent : theme.colors.quarterlyContent)
+        }
+        
+        return answerOption.selected ? theme.colors.accent : theme.colors.quarterlyContent
+    }
+    
+    var optionIndex: Int {
+        poll.answerOptions.firstIndex { $0.id == answerOption.id } ?? Int.max
+    }
+}
+
+struct PollHistoryDetailAnswerOptionButton_Previews: PreviewProvider {
+    static let stateRenderer = MockPollHistoryDetailScreenState.stateRenderer
+    
+    static var previews: some View {
+        Group {
+            let pollTypes: [TimelinePollType] = [.disclosed, .undisclosed]
+            
+            ForEach(pollTypes, id: \.self) { type in
+                VStack {
+                    TimelinePollAnswerOptionButton(poll: buildPoll(closed: false, type: type),
+                                                   answerOption: buildAnswerOption(selected: false),
+                                                   action: { })
+                    
+                    TimelinePollAnswerOptionButton(poll: buildPoll(closed: false, type: type),
+                                                   answerOption: buildAnswerOption(selected: true),
+                                                   action: { })
+                    
+                    TimelinePollAnswerOptionButton(poll: buildPoll(closed: true, type: type),
+                                                   answerOption: buildAnswerOption(selected: false, winner: false),
+                                                   action: { })
+
+                    TimelinePollAnswerOptionButton(poll: buildPoll(closed: true, type: type),
+                                                   answerOption: buildAnswerOption(selected: false, winner: true),
+                                                   action: { })
+
+                    TimelinePollAnswerOptionButton(poll: buildPoll(closed: true, type: type),
+                                                   answerOption: buildAnswerOption(selected: true, winner: false),
+                                                   action: { })
+
+                    TimelinePollAnswerOptionButton(poll: buildPoll(closed: true, type: type),
+                                                   answerOption: buildAnswerOption(selected: true, winner: true),
+                                                   action: { })
+
+                    let longText = "Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam, quis nostrud exercitation ullamco laboris nisi ut aliquip ex ea commodo consequat."
+
+                    TimelinePollAnswerOptionButton(poll: buildPoll(closed: true, type: type),
+                                                   answerOption: buildAnswerOption(text: longText, selected: true, winner: true),
+                                                   action: { })
+                }
+            }
+        }
+    }
+    
+    static func buildPoll(closed: Bool, type: TimelinePollType) -> TimelinePollDetails {
+        TimelinePollDetails(question: "",
+                            answerOptions: [],
+                            closed: closed,
+                            totalAnswerCount: 100,
+                            type: type,
+                            eventType: .started,
+                            maxAllowedSelections: 1,
+                            hasBeenEdited: false,
+                            hasDecryptionError: false)
+    }
+    
+    static func buildAnswerOption(text: String = "Test", selected: Bool, winner: Bool = false) -> TimelinePollAnswerOption {
+        TimelinePollAnswerOption(id: "1", text: text, count: 5, winner: winner, selected: selected)
+    }
+}
@@ -20,8 +20,8 @@ enum PollHistoryConstants {
    static let chunkSizeInDays: UInt = 30
 }

-enum PollHistoryViewModelResult: Equatable {
-    #warning("e.g. show poll detail")
+enum PollHistoryViewModelResult {
+    case showPollDetail(poll: PollListData)
 }

 // MARK: View
@@ -49,4 +49,5 @@ struct PollHistoryViewState: BindableState {
 enum PollHistoryViewAction {
    case viewAppeared
    case segmentDidChange
+    case showPollDetail(poll: PollListData)
 }
@@ -40,6 +40,8 @@ final class PollHistoryViewModel: PollHistoryViewModelType, PollHistoryViewModel
            fetchFirstBatch()
        case .segmentDidChange:
            updateViewState()
+        case .showPollDetail(let poll):
+            completion?(.showPollDetail(poll: poll))
        }
    }
 }
@@ -62,6 +62,9 @@ struct PollHistory: View {
            LazyVStack(spacing: 32) {
                ForEach(viewModel.viewState.polls ?? []) { pollData in
                    PollListItem(pollData: pollData)
+                        .onTapGesture {
+                            viewModel.send(viewAction: .showPollDetail(poll: pollData))
+                        }
                }
                .frame(maxWidth: .infinity, alignment: .leading)