91 lines
3.1 KiB
C++
91 lines
3.1 KiB
C++
// OpenAI, Copyright LifeEXE. All Rights Reserved.
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#include "BlueprintAsyncActions/Chat/ChatCompletionAction.h"
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#include "Provider/OpenAIProvider.h"
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#include "Algo/ForEach.h"
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#include "API/API.h"
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namespace
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{
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FString ParseResponses(const TArray<FChatCompletionStreamResponse>& Responses)
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{
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FString OutputString{};
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Algo::ForEach(Responses, [&](const FChatCompletionStreamResponse& StreamResponse) { //
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Algo::ForEach(StreamResponse.Choices, [&](const FChatStreamChoice& Choice) { //
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OutputString.Append(Choice.Delta.Content);
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});
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});
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return OutputString;
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}
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} // namespace
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UChatCompletionAction* UChatCompletionAction::CreateChatCompletion(
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const FChatCompletion& ChatCompletion, const FOpenAIAuth& Auth, const FString& URLOverride)
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{
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auto* ChatCompletionAction = NewObject<UChatCompletionAction>();
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ChatCompletionAction->ChatCompletion = ChatCompletion;
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ChatCompletionAction->Auth = Auth;
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return ChatCompletionAction;
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}
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void UChatCompletionAction::Activate()
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{
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auto* Provider = NewObject<UOpenAIProvider>();
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if (ChatCompletion.Stream)
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{
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Provider->OnCreateChatCompletionStreamProgresses().AddUObject(this, &ThisClass::OnCreateChatCompletionStreamProgresses);
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Provider->OnCreateChatCompletionStreamCompleted().AddUObject(this, &ThisClass::OnCreateChatCompletionStreamCompleted);
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}
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else
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{
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Provider->OnCreateChatCompletionCompleted().AddUObject(this, &ThisClass::OnCreateChatCompletionCompleted);
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}
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Provider->OnRequestError().AddUObject(this, &ThisClass::OnRequestError);
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TryToOverrideURL(Provider);
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Provider->CreateChatCompletion(ChatCompletion, Auth);
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}
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void UChatCompletionAction::OnCreateChatCompletionCompleted(const FChatCompletionResponse& Response)
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{
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FChatCompletionPayload Payload;
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Payload.bStream = false;
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Payload.bCompleted = true;
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Payload.Response = Response;
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OnUpdate.Broadcast(Payload, {});
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}
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void UChatCompletionAction::OnCreateChatCompletionStreamProgresses(const TArray<FChatCompletionStreamResponse>& Responses)
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{
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FChatCompletionPayload Payload;
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Payload.bStream = true;
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Payload.bCompleted = false;
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Payload.StreamResponseString = ParseResponses(Responses);
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Payload.StreamResponse = Responses;
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OnUpdate.Broadcast(Payload, {});
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}
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void UChatCompletionAction::OnCreateChatCompletionStreamCompleted(const TArray<FChatCompletionStreamResponse>& Responses)
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{
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FChatCompletionPayload Payload;
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Payload.bStream = true;
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Payload.bCompleted = true;
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Payload.StreamResponseString = ParseResponses(Responses);
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Payload.StreamResponse = Responses;
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OnUpdate.Broadcast(Payload, {});
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}
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void UChatCompletionAction::OnRequestError(const FString& URL, const FString& Content)
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{
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OnUpdate.Broadcast({}, FOpenAIError{Content, true});
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}
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void UChatCompletionAction::TryToOverrideURL(UOpenAIProvider* Provider)
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{
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if (URLOverride.IsEmpty()) return;
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OpenAI::V1::FOpenAIEndpoints Endpoints;
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Endpoints.ChatCompletions = URLOverride;
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const auto API = MakeShared<OpenAI::V1::GenericAPI>(Endpoints);
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Provider->SetAPI(API);
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}
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