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72 lines
2.6 KiB
Swift
72 lines
2.6 KiB
Swift
/*
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Copyright 2019 New Vector Ltd
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Licensed under the Apache License, Version 2.0 (the "License");
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you may not use this file except in compliance with the License.
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You may obtain a copy of the License at
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http://www.apache.org/licenses/LICENSE-2.0
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Unless required by applicable law or agreed to in writing, software
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distributed under the License is distributed on an "AS IS" BASIS,
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WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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See the License for the specific language governing permissions and
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limitations under the License.
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*/
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import Foundation
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enum EmojiServiceError: Error {
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case emojiJSONFileNotFound
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}
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/// Emoji service powered by Emoji Mart data (https://github.com/missive/emoji-mart/)
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final class EmojiMartService: EmojiServiceType {
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// MARK: - Constants
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/// Emoji data coming from https://github.com/missive/emoji-mart/blob/master/data/apple.json
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private static let jsonFilename = "apple_emojis_data"
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// MARK: - Properties
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private let serializationService: SerializationServiceType = SerializationService()
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private let serviceQueue = DispatchQueue(label: "\(type(of: EmojiMartService.self))")
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// MARK: - Public
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func getEmojiCategories(completion: @escaping (MXResponse<[EmojiCategory]>) -> Void) {
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self.serviceQueue.async {
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do {
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let emojiJSONData = try self.getEmojisJSONData()
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let emojiJSONStore: EmojiMartStore = try self.serializationService.deserialize(emojiJSONData)
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let emojiCategories = self.emojiCategories(from: emojiJSONStore)
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completion(MXResponse.success(emojiCategories))
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} catch {
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completion(MXResponse.failure(error))
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}
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}
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}
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// MARK: - Private
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private func getEmojisJSONData() throws -> Data {
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guard let jsonDataURL = Bundle.main.url(forResource: EmojiMartService.jsonFilename, withExtension: "json") else {
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throw EmojiServiceError.emojiJSONFileNotFound
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}
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let jsonData = try Data(contentsOf: jsonDataURL)
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return jsonData
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}
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private func emojiCategories(from emojiJSONStore: EmojiMartStore) -> [EmojiCategory] {
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let allEmojiItems = emojiJSONStore.emojis
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return emojiJSONStore.categories.map { (jsonCategory) -> EmojiCategory in
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let emojiItems = jsonCategory.emojiShortNames.compactMap({ (shortName) -> EmojiItem? in
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return allEmojiItems.first(where: { $0.shortName == shortName })
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})
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return EmojiCategory(identifier: jsonCategory.identifier, emojis: emojiItems)
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}
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}
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}
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