264 lines
13 KiB
Swift

import Foundation
import Postbox
import SwiftSignalKit
import TelegramApi
import MtProtoKit
public enum TranslationError {
case generic
case invalidMessageId
case textIsEmpty
case textTooLong
case invalidLanguage
case limitExceeded
}
func _internal_translate(network: Network, text: String, toLang: String, entities: [MessageTextEntity] = []) -> Signal<(String, [MessageTextEntity])?, TranslationError> {
var flags: Int32 = 0
flags |= (1 << 1)
return network.request(Api.functions.messages.translateText(flags: flags, peer: nil, id: nil, text: [.textWithEntities(text: text, entities: apiEntitiesFromMessageTextEntities(entities, associatedPeers: SimpleDictionary()))], toLang: toLang))
|> mapError { error -> TranslationError in
if error.errorDescription.hasPrefix("FLOOD_WAIT") {
return .limitExceeded
} else if error.errorDescription == "MSG_ID_INVALID" {
return .invalidMessageId
} else if error.errorDescription == "INPUT_TEXT_EMPTY" {
return .textIsEmpty
} else if error.errorDescription == "INPUT_TEXT_TOO_LONG" {
return .textTooLong
} else if error.errorDescription == "TO_LANG_INVALID" {
return .invalidLanguage
} else {
return .generic
}
}
|> mapToSignal { result -> Signal<(String, [MessageTextEntity])?, TranslationError> in
switch result {
case let .translateResult(results):
if case let .textWithEntities(text, entities) = results.first {
return .single((text, messageTextEntitiesFromApiEntities(entities)))
} else {
return .single(nil)
}
}
}
}
func _internal_translate_texts(network: Network, texts: [(String, [MessageTextEntity])], toLang: String) -> Signal<[(String, [MessageTextEntity])], TranslationError> {
var flags: Int32 = 0
flags |= (1 << 1)
var apiTexts: [Api.TextWithEntities] = []
for text in texts {
apiTexts.append(.textWithEntities(text: text.0, entities: apiEntitiesFromMessageTextEntities(text.1, associatedPeers: SimpleDictionary())))
}
return network.request(Api.functions.messages.translateText(flags: flags, peer: nil, id: nil, text: apiTexts, toLang: toLang))
|> mapError { error -> TranslationError in
if error.errorDescription.hasPrefix("FLOOD_WAIT") {
return .limitExceeded
} else if error.errorDescription == "MSG_ID_INVALID" {
return .invalidMessageId
} else if error.errorDescription == "INPUT_TEXT_EMPTY" {
return .textIsEmpty
} else if error.errorDescription == "INPUT_TEXT_TOO_LONG" {
return .textTooLong
} else if error.errorDescription == "TO_LANG_INVALID" {
return .invalidLanguage
} else {
return .generic
}
}
|> mapToSignal { result -> Signal<[(String, [MessageTextEntity])], TranslationError> in
var texts: [(String, [MessageTextEntity])] = []
switch result {
case let .translateResult(results):
for result in results {
if case let .textWithEntities(text, entities) = result {
texts.append((text, messageTextEntitiesFromApiEntities(entities)))
}
}
}
return .single(texts)
}
}
func _internal_translateMessages(account: Account, messageIds: [EngineMessage.Id], toLang: String) -> Signal<Never, TranslationError> {
var signals: [Signal<Void, TranslationError>] = []
for (peerId, messageIds) in messagesIdsGroupedByPeerId(messageIds) {
signals.append(_internal_translateMessagesByPeerId(account: account, peerId: peerId, messageIds: messageIds, toLang: toLang))
}
return combineLatest(signals)
|> ignoreValues
}
private func _internal_translateMessagesByPeerId(account: Account, peerId: EnginePeer.Id, messageIds: [EngineMessage.Id], toLang: String) -> Signal<Void, TranslationError> {
return account.postbox.transaction { transaction -> (Api.InputPeer?, [Message]) in
return (transaction.getPeer(peerId).flatMap(apiInputPeer), messageIds.compactMap({ transaction.getMessage($0) }))
}
|> castError(TranslationError.self)
|> mapToSignal { (inputPeer, messages) -> Signal<Void, TranslationError> in
guard let inputPeer = inputPeer else {
return .never()
}
let polls = messages.compactMap { msg in
if let poll = msg.media.first as? TelegramMediaPoll {
return (poll, msg.id)
} else {
return nil
}
}
let pollSignals = polls.map { (poll, id) in
var texts: [(String, [MessageTextEntity])] = []
texts.append((poll.text, poll.textEntities))
for option in poll.options {
texts.append((option.text, option.entities))
}
if let solution = poll.results.solution {
texts.append((solution.text, solution.entities))
}
return _internal_translate_texts(network: account.network, texts: texts, toLang: toLang)
}
var flags: Int32 = 0
flags |= (1 << 0)
let id: [Int32] = messageIds.map { $0.id }
let msgs: Signal<Api.messages.TranslatedText?, TranslationError>
if id.isEmpty {
msgs = .single(nil)
} else {
msgs = account.network.request(Api.functions.messages.translateText(flags: flags, peer: inputPeer, id: id, text: nil, toLang: toLang))
|> map(Optional.init)
|> mapError { error -> TranslationError in
if error.errorDescription.hasPrefix("FLOOD_WAIT") {
return .limitExceeded
} else if error.errorDescription == "MSG_ID_INVALID" {
return .invalidMessageId
} else if error.errorDescription == "INPUT_TEXT_EMPTY" {
return .textIsEmpty
} else if error.errorDescription == "INPUT_TEXT_TOO_LONG" {
return .textTooLong
} else if error.errorDescription == "TO_LANG_INVALID" {
return .invalidLanguage
} else {
return .generic
}
}
}
return combineLatest(msgs, combineLatest(pollSignals))
|> mapToSignal { (result, pollResults) -> Signal<Void, TranslationError> in
return account.postbox.transaction { transaction in
if case let .translateResult(results) = result {
var index = 0
for result in results {
let messageId = messageIds[index]
if case let .textWithEntities(text, entities) = result {
let updatedAttribute: TranslationMessageAttribute = TranslationMessageAttribute(text: text, entities: messageTextEntitiesFromApiEntities(entities), toLang: toLang)
transaction.updateMessage(messageId, update: { currentMessage in
let storeForwardInfo = currentMessage.forwardInfo.flatMap(StoreMessageForwardInfo.init)
var attributes = currentMessage.attributes.filter { !($0 is TranslationMessageAttribute) }
attributes.append(updatedAttribute)
return .update(StoreMessage(id: currentMessage.id, globallyUniqueId: currentMessage.globallyUniqueId, groupingKey: currentMessage.groupingKey, threadId: currentMessage.threadId, timestamp: currentMessage.timestamp, flags: StoreMessageFlags(currentMessage.flags), tags: currentMessage.tags, globalTags: currentMessage.globalTags, localTags: currentMessage.localTags, forwardInfo: storeForwardInfo, authorId: currentMessage.author?.id, text: currentMessage.text, attributes: attributes, media: currentMessage.media))
})
}
index += 1
}
}
if !pollResults.isEmpty {
for (i, poll) in polls.enumerated() {
let result = pollResults[i]
if !result.isEmpty {
transaction.updateMessage(poll.1, update: { currentMessage in
let storeForwardInfo = currentMessage.forwardInfo.flatMap(StoreMessageForwardInfo.init)
var attributes = currentMessage.attributes.filter { !($0 is TranslationMessageAttribute) }
var attrOptions: [TranslationMessageAttribute.Additional] = []
for (i, _) in poll.0.options.enumerated() {
var translated = result.count > i + 1 ? result[i + 1] : (poll.0.options[i].text, poll.0.options[i].entities)
if translated.0.isEmpty {
translated = (poll.0.options[i].text, poll.0.options[i].entities)
}
attrOptions.append(.init(text: translated.0, entities: translated.1))
}
let solution: TranslationMessageAttribute.Additional?
if result.count > 1 + poll.0.options.count, !result[result.count - 1].0.isEmpty {
solution = .init(text: result[result.count - 1].0, entities: result[result.count - 1].1)
} else {
solution = nil
}
let title = result[0].0.isEmpty ? (poll.0.text, poll.0.textEntities) : result[0]
let updatedAttribute: TranslationMessageAttribute = TranslationMessageAttribute(text: title.0, entities: title.1, additional: attrOptions, pollSolution: solution, toLang: toLang)
attributes.append(updatedAttribute)
return .update(StoreMessage(id: currentMessage.id, globallyUniqueId: currentMessage.globallyUniqueId, groupingKey: currentMessage.groupingKey, threadId: currentMessage.threadId, timestamp: currentMessage.timestamp, flags: StoreMessageFlags(currentMessage.flags), tags: currentMessage.tags, globalTags: currentMessage.globalTags, localTags: currentMessage.localTags, forwardInfo: storeForwardInfo, authorId: currentMessage.author?.id, text: currentMessage.text, attributes: attributes, media: currentMessage.media))
})
}
}
}
}
|> castError(TranslationError.self)
}
}
}
func _internal_togglePeerMessagesTranslationHidden(account: Account, peerId: EnginePeer.Id, hidden: Bool) -> Signal<Never, NoError> {
return account.postbox.transaction { transaction -> Api.InputPeer? in
transaction.updatePeerCachedData(peerIds: Set([peerId]), update: { _, cachedData -> CachedPeerData? in
if let cachedData = cachedData as? CachedUserData {
var updatedFlags = cachedData.flags
if hidden {
updatedFlags.insert(.translationHidden)
} else {
updatedFlags.remove(.translationHidden)
}
return cachedData.withUpdatedFlags(updatedFlags)
} else if let cachedData = cachedData as? CachedGroupData {
var updatedFlags = cachedData.flags
if hidden {
updatedFlags.insert(.translationHidden)
} else {
updatedFlags.remove(.translationHidden)
}
return cachedData.withUpdatedFlags(updatedFlags)
} else if let cachedData = cachedData as? CachedChannelData {
var updatedFlags = cachedData.flags
if hidden {
updatedFlags.insert(.translationHidden)
} else {
updatedFlags.remove(.translationHidden)
}
return cachedData.withUpdatedFlags(updatedFlags)
} else {
return cachedData
}
})
return transaction.getPeer(peerId).flatMap(apiInputPeer)
}
|> mapToSignal { inputPeer -> Signal<Never, NoError> in
guard let inputPeer = inputPeer else {
return .never()
}
var flags: Int32 = 0
if hidden {
flags |= (1 << 0)
}
return account.network.request(Api.functions.messages.togglePeerTranslations(flags: flags, peer: inputPeer))
|> map(Optional.init)
|> `catch` { _ -> Signal<Api.Bool?, NoError> in
return .single(nil)
}
|> ignoreValues
}
}