discourse-ai/lib/modules/ai_helper/llm_prompt.rb

112 lines
3.0 KiB
Ruby

# frozen_string_literal: true
module DiscourseAi
module AiHelper
class LlmPrompt
def available_prompts
CompletionPrompt
.where(provider: enabled_provider)
.where(enabled: true)
.map do |prompt|
translation =
I18n.t("discourse_ai.ai_helper.prompts.#{prompt.name}", default: nil) ||
prompt.translated_name || prompt.name
{
id: prompt.id,
name: prompt.name,
translated_name: translation,
prompt_type: prompt.prompt_type,
}
end
end
def generate_and_send_prompt(prompt, text)
if enabled_provider == "openai"
openai_call(prompt, text)
else
anthropic_call(prompt, text)
end
end
def enabled_provider
if SiteSetting.ai_helper_model.start_with?("gpt")
"openai"
else
"anthropic"
end
end
private
def generate_diff(text, suggestion)
cooked_text = PrettyText.cook(text)
cooked_suggestion = PrettyText.cook(suggestion)
DiscourseDiff.new(cooked_text, cooked_suggestion).inline_html
end
def parse_content(prompt, content)
return "" if content.blank?
if enabled_provider == "openai"
return content.strip if !prompt.list?
content.gsub("\"", "").gsub(/\d./, "").split("\n").map(&:strip)
else
parse_antropic_content(prompt, content)
end
end
def openai_call(prompt, text)
result = { type: prompt.prompt_type }
messages = prompt.messages_with_user_input(text)
result[:suggestions] = DiscourseAi::Inference::OpenAiCompletions
.perform!(messages)
.dig(:choices)
.to_a
.flat_map { |choice| parse_content(prompt, choice.dig(:message, :content).to_s) }
.compact_blank
result[:diff] = generate_diff(text, result[:suggestions].first) if prompt.diff?
result
end
def anthropic_call(prompt, text)
result = { type: prompt.prompt_type }
filled_message = prompt.messages_with_user_input(text)
message =
filled_message.map { |msg| "#{msg["role"]}: #{msg["content"]}" }.join("\n\n") +
"Assistant:"
response = DiscourseAi::Inference::AnthropicCompletions.perform!(message)
result[:suggestions] = parse_content(prompt, response.dig(:completion))
result[:diff] = generate_diff(text, result[:suggestions].first) if prompt.diff?
result
end
def parse_antropic_content(prompt, content)
if prompt.list?
suggestions = Nokogiri::HTML5.fragment(content).search("ai").map(&:text)
if suggestions.length > 1
suggestions
else
suggestions.first.split("\n").map(&:strip)
end
else
[Nokogiri::HTML5.fragment(content).at("ai").text]
end
end
end
end
end