Merge pull request #235 from adevinta/feature/component/icon

[Icon#205] Create UIKit icon component

core/Sources/Components/Icon/AccessibilityIdentifier/IconAccessibilityIdentifier.swift

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+//
+//  IconAccessibilityIdentifier.swift
+//  SparkCore
+//
+//  Created by Jacklyn Situmorang on 20.07.23.
+//  Copyright © 2023 Adevinta. All rights reserved.
+//
+
+import Foundation
+
+public enum IconAccessibilityIdentifier {
+
+    // MARK: - Properties
+
+    public static let view = "spark-icon-image"
+}

core/Sources/Components/Icon/Enum/IconIntent.swift

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+//
+//  IconIntent.swift
+//  Spark
+//
+//  Created by Jacklyn Situmorang on 10.07.23.
+//  Copyright © 2023 Adevinta. All rights reserved.
+//
+
+import Foundation
+
+/// Intents of the icon.
+public enum IconIntent: CaseIterable {
+    case alert
+    case error
+    case neutral
+    case primary
+    case secondary
+    case success
+}

core/Sources/Components/Icon/Enum/IconSize.swift

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+//
+//  IconSize.swift
+//  SparkCore
+//
+//  Created by Jacklyn Situmorang on 11.07.23.
+//  Copyright © 2023 Adevinta. All rights reserved.
+//
+
+import Foundation
+
+/// Different sizes of icon.
+public enum IconSize: CaseIterable {
+    /// Small icon with size of 16x16px
+    case small
+
+    /// Small icon with size of 24x24px
+    case medium
+
+    /// Small icon with size of 32x32px
+    case large
+
+    /// Small icon with size of 40x40px
+    case extraLarge
+}
+
+// MARK: - Extension
+extension IconSize {
+    public var value: CGFloat {
+        switch self {
+        case .small:
+            return Constants.valueSmall
+        case .medium:
+            return Constants.valueMedium
+        case .large:
+            return Constants.valueLarge
+        case .extraLarge:
+            return Constants.valueExtraLarge
+        }
+    }
+}
+
+// MARK: - Constants
+private enum Constants {
+    static var valueSmall: CGFloat = 16
+    static var valueMedium: CGFloat = 24
+    static var valueLarge: CGFloat = 32
+    static var valueExtraLarge: CGFloat = 40
+}

core/Sources/Components/Icon/UseCase/IconGetColorUseCase.swift

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+//
+//  IconGetColorUseCase.swift
+//  Spark
+//
+//  Created by Jacklyn Situmorang on 10.07.23.
+//  Copyright © 2023 Adevinta. All rights reserved.
+//
+
+import Foundation
+
+// sourcery: AutoMockable
+protocol IconGetColorUseCaseable {
+    func execute(for intent: IconIntent, colors: Colors) -> any ColorToken
+}
+
+struct IconGetColorUseCase: IconGetColorUseCaseable {
+
+    // MARK: - Methods
+
+    func execute(for intent: IconIntent, colors: Colors) -> any ColorToken {
+        switch intent {
+        case .alert :
+            return colors.feedback.alert
+        case .error:
+            return colors.feedback.error
+        case .neutral:
+            return colors.feedback.neutral
+        case .primary:
+            return colors.primary.primary
+        case .secondary:
+            return colors.secondary.secondary
+        case .success:
+            return colors.feedback.success
+        }
+    }
+}

core/Sources/Components/Icon/UseCase/IconGetColorUseCaseTests.swift

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+//
+//  IconGetColorUseCaseTests.swift
+//  Spark
+//
+//  Created by Jacklyn Situmorang on 10.07.23.
+//  Copyright © 2023 Adevinta. All rights reserved.
+//
+
+import SwiftUI
+import XCTest
+
+@testable import SparkCore
+
+final class IconGetColorUseCaseTests: XCTestCase {
+
+    // MARK: - Properties
+
+    private let colorsMock = ColorsGeneratedMock.mocked()
+
+    // MARK: - Tests
+
+    func test_execute_when_icon_is_alert_case() {
+        testExecute(givenIntent: .alert, expectedColorToken: self.colorsMock.feedback.alert)
+    }
+
+    func test_execute_when_icon_is_error_case() {
+        testExecute(givenIntent: .error, expectedColorToken: self.colorsMock.feedback.error)
+    }
+
+    func test_execute_when_icon_is_neutral_case() {
+        testExecute(givenIntent: .neutral, expectedColorToken: self.colorsMock.feedback.neutral)
+    }
+
+    func test_execute_when_icon_is_primary_case() {
+        testExecute(givenIntent: .primary, expectedColorToken: self.colorsMock.primary.primary)
+    }
+
+    func test_execute_when_icon_is_secondary_case() {
+        testExecute(givenIntent: .secondary, expectedColorToken: self.colorsMock.secondary.secondary)
+    }
+
+    func test_execute_when_icon_is_success_case() {
+        testExecute(givenIntent: .success, expectedColorToken: self.colorsMock.feedback.success)
+    }
+}
+
+// MARK: - Extension
+
+private extension IconGetColorUseCaseTests {
+    func testExecute(
+        givenIntent: IconIntent,
+        expectedColorToken: any ColorToken
+    ) {
+        // GIVEN
+        let useCase = IconGetColorUseCase()
+
+        // WHEN
+        let colorToken = useCase.execute(
+            for: givenIntent,
+            colors: colorsMock
+        )
+
+        // THEN
+        XCTAssertIdentical(
+            colorToken as? ColorTokenGeneratedMock,
+            expectedColorToken as? ColorTokenGeneratedMock,
+            "Wrong color for .\(givenIntent) case"
+        )
+    }
+}

core/Sources/Components/Icon/View/Model/IconViewModel.swift

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+//
+//  IconViewModel.swift
+//  SparkCore
+//
+//  Created by Jacklyn Situmorang on 11.07.23.
+//  Copyright © 2023 Adevinta. All rights reserved.
+//
+
+import Foundation
+
+final class IconViewModel: ObservableObject {
+
+    // MARK: - Properties
+
+    private(set) var theme: Theme
+    private(set) var intent: IconIntent
+    private let getColorUseCase: IconGetColorUseCaseable
+
+    // MARK: - Published properties
+
+    @Published var color: any ColorToken
+    @Published var size: IconSize
+
+    // MARK: - Initializers
+
+    init(
+        theme: Theme,
+        intent: IconIntent,
+        size: IconSize,
+        getColorUseCase: IconGetColorUseCaseable = IconGetColorUseCase()
+    ) {
+        self.theme = theme
+        self.intent = intent
+        self.size = size
+        self.getColorUseCase = getColorUseCase
+        self.color = getColorUseCase.execute(for: intent, colors: theme.colors)
+    }
+
+    // MARK: - Setters
+
+    func set(theme: Theme) {
+        self.theme = theme
+        self.updateColor()
+    }
+
+    func set(intent: IconIntent) {
+        if self.intent != intent {
+            self.intent = intent
+            self.updateColor()
+        }
+    }
+
+    func set(size: IconSize) {
+        if self.size != size {
+            self.size = size
+        }
+    }
+
+    // MARK: - Private funcs
+
+    private func updateColor() {
+        self.color = self.getColorUseCase.execute(for: self.intent, colors: self.theme.colors)
+    }
+}