385 lines
11 KiB
Ruby
385 lines
11 KiB
Ruby
#frozen_string_literal: true
|
|
|
|
module DiscourseAi
|
|
module AiBot
|
|
module Personas
|
|
class Persona
|
|
class << self
|
|
def rag_conversation_chunks
|
|
10
|
|
end
|
|
|
|
def vision_enabled
|
|
false
|
|
end
|
|
|
|
def vision_max_pixels
|
|
1_048_576
|
|
end
|
|
|
|
def question_consolidator_llm
|
|
nil
|
|
end
|
|
|
|
def force_default_llm
|
|
false
|
|
end
|
|
|
|
def allow_chat_channel_mentions
|
|
false
|
|
end
|
|
|
|
def allow_chat_direct_messages
|
|
false
|
|
end
|
|
|
|
def system_personas
|
|
@system_personas ||= {
|
|
Personas::General => -1,
|
|
Personas::SqlHelper => -2,
|
|
Personas::Artist => -3,
|
|
Personas::SettingsExplorer => -4,
|
|
Personas::Researcher => -5,
|
|
Personas::Creative => -6,
|
|
Personas::DallE3 => -7,
|
|
Personas::DiscourseHelper => -8,
|
|
Personas::GithubHelper => -9,
|
|
Personas::WebArtifactCreator => -10,
|
|
}
|
|
end
|
|
|
|
def system_personas_by_id
|
|
@system_personas_by_id ||= system_personas.invert
|
|
end
|
|
|
|
def all(user:)
|
|
# listing tools has to be dynamic cause site settings may change
|
|
AiPersona.all_personas.filter do |persona|
|
|
next false if !user.in_any_groups?(persona.allowed_group_ids)
|
|
|
|
if persona.system
|
|
instance = persona.new
|
|
(
|
|
instance.required_tools == [] ||
|
|
(instance.required_tools - all_available_tools).empty?
|
|
)
|
|
else
|
|
true
|
|
end
|
|
end
|
|
end
|
|
|
|
def find_by(id: nil, name: nil, user:)
|
|
all(user: user).find { |persona| persona.id == id || persona.name == name }
|
|
end
|
|
|
|
def name
|
|
I18n.t("discourse_ai.ai_bot.personas.#{to_s.demodulize.underscore}.name")
|
|
end
|
|
|
|
def description
|
|
I18n.t("discourse_ai.ai_bot.personas.#{to_s.demodulize.underscore}.description")
|
|
end
|
|
|
|
def all_available_tools
|
|
tools = [
|
|
Tools::ListCategories,
|
|
Tools::Time,
|
|
Tools::Search,
|
|
Tools::Read,
|
|
Tools::DbSchema,
|
|
Tools::SearchSettings,
|
|
Tools::SettingContext,
|
|
Tools::RandomPicker,
|
|
Tools::DiscourseMetaSearch,
|
|
Tools::GithubFileContent,
|
|
Tools::GithubPullRequestDiff,
|
|
Tools::GithubSearchFiles,
|
|
Tools::WebBrowser,
|
|
Tools::JavascriptEvaluator,
|
|
]
|
|
|
|
tools << Tools::CreateArtifact if SiteSetting.ai_artifact_security.in?(%w[lax strict])
|
|
tools << Tools::GithubSearchCode if SiteSetting.ai_bot_github_access_token.present?
|
|
|
|
tools << Tools::ListTags if SiteSetting.tagging_enabled
|
|
tools << Tools::Image if SiteSetting.ai_stability_api_key.present?
|
|
|
|
tools << Tools::DallE if SiteSetting.ai_openai_api_key.present?
|
|
if SiteSetting.ai_google_custom_search_api_key.present? &&
|
|
SiteSetting.ai_google_custom_search_cx.present?
|
|
tools << Tools::Google
|
|
end
|
|
|
|
tools
|
|
end
|
|
end
|
|
|
|
def id
|
|
@ai_persona&.id || self.class.system_personas[self.class]
|
|
end
|
|
|
|
def tools
|
|
[]
|
|
end
|
|
|
|
def force_tool_use
|
|
[]
|
|
end
|
|
|
|
def forced_tool_count
|
|
-1
|
|
end
|
|
|
|
def required_tools
|
|
[]
|
|
end
|
|
|
|
def temperature
|
|
nil
|
|
end
|
|
|
|
def top_p
|
|
nil
|
|
end
|
|
|
|
def options
|
|
{}
|
|
end
|
|
|
|
def available_tools
|
|
self
|
|
.class
|
|
.all_available_tools
|
|
.filter { |tool| tools.include?(tool) }
|
|
.concat(tools.filter(&:custom?))
|
|
end
|
|
|
|
def craft_prompt(context, llm: nil)
|
|
system_insts =
|
|
system_prompt.gsub(/\{(\w+)\}/) do |match|
|
|
found = context[match[1..-2].to_sym]
|
|
found.nil? ? match : found.to_s
|
|
end
|
|
|
|
prompt_insts = <<~TEXT.strip
|
|
#{system_insts}
|
|
#{available_tools.map(&:custom_system_message).compact_blank.join("\n")}
|
|
TEXT
|
|
|
|
question_consolidator_llm = llm
|
|
if self.class.question_consolidator_llm.present?
|
|
question_consolidator_llm =
|
|
DiscourseAi::Completions::Llm.proxy(self.class.question_consolidator_llm)
|
|
end
|
|
|
|
if context[:custom_instructions].present?
|
|
prompt_insts << "\n"
|
|
prompt_insts << context[:custom_instructions]
|
|
end
|
|
|
|
fragments_guidance =
|
|
rag_fragments_prompt(
|
|
context[:conversation_context].to_a,
|
|
llm: question_consolidator_llm,
|
|
user: context[:user],
|
|
)&.strip
|
|
|
|
prompt_insts << fragments_guidance if fragments_guidance.present?
|
|
|
|
prompt =
|
|
DiscourseAi::Completions::Prompt.new(
|
|
prompt_insts,
|
|
messages: context[:conversation_context].to_a,
|
|
topic_id: context[:topic_id],
|
|
post_id: context[:post_id],
|
|
)
|
|
|
|
prompt.max_pixels = self.class.vision_max_pixels if self.class.vision_enabled
|
|
prompt.tools = available_tools.map(&:signature) if available_tools
|
|
|
|
prompt
|
|
end
|
|
|
|
def find_tool(partial, bot_user:, llm:, context:, existing_tools: [])
|
|
return nil if !partial.is_a?(DiscourseAi::Completions::ToolCall)
|
|
tool_instance(
|
|
partial,
|
|
bot_user: bot_user,
|
|
llm: llm,
|
|
context: context,
|
|
existing_tools: existing_tools,
|
|
)
|
|
end
|
|
|
|
def allow_partial_tool_calls?
|
|
available_tools.any? { |tool| tool.allow_partial_tool_calls? }
|
|
end
|
|
|
|
protected
|
|
|
|
def tool_instance(tool_call, bot_user:, llm:, context:, existing_tools:)
|
|
function_id = tool_call.id
|
|
function_name = tool_call.name
|
|
return nil if function_name.nil?
|
|
|
|
tool_klass = available_tools.find { |c| c.signature.dig(:name) == function_name }
|
|
return nil if tool_klass.nil?
|
|
|
|
arguments = {}
|
|
tool_klass.signature[:parameters].to_a.each do |param|
|
|
name = param[:name]
|
|
value = tool_call.parameters[name.to_sym]
|
|
|
|
if param[:type] == "array" && value
|
|
value =
|
|
begin
|
|
JSON.parse(value)
|
|
rescue JSON::ParserError
|
|
[value.to_s]
|
|
end
|
|
elsif param[:type] == "string" && value
|
|
value = strip_quotes(value).to_s
|
|
elsif param[:type] == "integer" && value
|
|
value = strip_quotes(value).to_i
|
|
end
|
|
|
|
if param[:enum] && value && !param[:enum].include?(value)
|
|
# invalid enum value
|
|
value = nil
|
|
end
|
|
|
|
arguments[name.to_sym] = value if value
|
|
end
|
|
|
|
tool_instance =
|
|
existing_tools.find { |t| t.name == function_name && t.tool_call_id == function_id }
|
|
|
|
if tool_instance
|
|
tool_instance.parameters = arguments
|
|
tool_instance
|
|
else
|
|
tool_klass.new(
|
|
arguments,
|
|
tool_call_id: function_id || function_name,
|
|
persona_options: options[tool_klass].to_h,
|
|
bot_user: bot_user,
|
|
llm: llm,
|
|
context: context,
|
|
)
|
|
end
|
|
end
|
|
|
|
def strip_quotes(value)
|
|
if value.is_a?(String)
|
|
if value.start_with?('"') && value.end_with?('"')
|
|
value = value[1..-2]
|
|
elsif value.start_with?("'") && value.end_with?("'")
|
|
value = value[1..-2]
|
|
else
|
|
value
|
|
end
|
|
else
|
|
value
|
|
end
|
|
end
|
|
|
|
def rag_fragments_prompt(conversation_context, llm:, user:)
|
|
upload_refs =
|
|
UploadReference.where(target_id: id, target_type: "AiPersona").pluck(:upload_id)
|
|
|
|
return nil if !SiteSetting.ai_embeddings_enabled?
|
|
return nil if conversation_context.blank? || upload_refs.blank?
|
|
|
|
latest_interactions =
|
|
conversation_context.select { |ctx| %i[model user].include?(ctx[:type]) }.last(10)
|
|
|
|
return nil if latest_interactions.empty?
|
|
|
|
# first response
|
|
if latest_interactions.length == 1
|
|
consolidated_question = latest_interactions[0][:content]
|
|
else
|
|
consolidated_question =
|
|
DiscourseAi::AiBot::QuestionConsolidator.consolidate_question(
|
|
llm,
|
|
latest_interactions,
|
|
user,
|
|
)
|
|
end
|
|
|
|
return nil if !consolidated_question
|
|
|
|
strategy = DiscourseAi::Embeddings::Strategies::Truncation.new
|
|
vector_rep =
|
|
DiscourseAi::Embeddings::VectorRepresentations::Base.current_representation(strategy)
|
|
reranker = DiscourseAi::Inference::HuggingFaceTextEmbeddings
|
|
|
|
interactions_vector = vector_rep.vector_from(consolidated_question)
|
|
|
|
rag_conversation_chunks = self.class.rag_conversation_chunks
|
|
|
|
candidate_fragment_ids =
|
|
vector_rep.asymmetric_rag_fragment_similarity_search(
|
|
interactions_vector,
|
|
target_type: "AiPersona",
|
|
target_id: id,
|
|
limit:
|
|
(
|
|
if reranker.reranker_configured?
|
|
rag_conversation_chunks * 5
|
|
else
|
|
rag_conversation_chunks
|
|
end
|
|
),
|
|
offset: 0,
|
|
)
|
|
|
|
fragments =
|
|
RagDocumentFragment.where(upload_id: upload_refs, id: candidate_fragment_ids).pluck(
|
|
:fragment,
|
|
:metadata,
|
|
)
|
|
|
|
if reranker.reranker_configured?
|
|
guidance = fragments.map { |fragment, _metadata| fragment }
|
|
ranks =
|
|
DiscourseAi::Inference::HuggingFaceTextEmbeddings
|
|
.rerank(conversation_context.last[:content], guidance)
|
|
.to_a
|
|
.take(rag_conversation_chunks)
|
|
.map { _1[:index] }
|
|
|
|
if ranks.empty?
|
|
fragments = fragments.take(rag_conversation_chunks)
|
|
else
|
|
fragments = ranks.map { |idx| fragments[idx] }
|
|
end
|
|
end
|
|
|
|
<<~TEXT
|
|
<guidance>
|
|
The following texts will give you additional guidance for your response.
|
|
We included them because we believe they are relevant to this conversation topic.
|
|
|
|
Texts:
|
|
|
|
#{
|
|
fragments
|
|
.map do |fragment, metadata|
|
|
if metadata.present?
|
|
["# #{metadata}", fragment].join("\n")
|
|
else
|
|
fragment
|
|
end
|
|
end
|
|
.join("\n")
|
|
}
|
|
</guidance>
|
|
TEXT
|
|
end
|
|
end
|
|
end
|
|
end
|
|
end
|