321 lines
11 KiB
Ruby
321 lines
11 KiB
Ruby
# frozen_string_literal: true
|
|
|
|
class AiPersona < ActiveRecord::Base
|
|
# TODO remove this line 01-1-2025
|
|
self.ignored_columns = %i[commands allow_chat mentionable]
|
|
|
|
# places a hard limit, so per site we cache a maximum of 500 classes
|
|
MAX_PERSONAS_PER_SITE = 500
|
|
|
|
validates :name, presence: true, uniqueness: true, length: { maximum: 100 }
|
|
validates :description, presence: true, length: { maximum: 2000 }
|
|
validates :system_prompt, presence: true, length: { maximum: 10_000_000 }
|
|
validate :system_persona_unchangeable, on: :update, if: :system
|
|
validate :chat_preconditions
|
|
validates :max_context_posts, numericality: { greater_than: 0 }, allow_nil: true
|
|
# leaves some room for growth but sets a maximum to avoid memory issues
|
|
# we may want to revisit this in the future
|
|
validates :vision_max_pixels, numericality: { greater_than: 0, maximum: 4_000_000 }
|
|
|
|
validates :rag_chunk_tokens, numericality: { greater_than: 0, maximum: 50_000 }
|
|
validates :rag_chunk_overlap_tokens, numericality: { greater_than: -1, maximum: 200 }
|
|
validates :rag_conversation_chunks, numericality: { greater_than: 0, maximum: 1000 }
|
|
validates :forced_tool_count, numericality: { greater_than: -2, maximum: 100_000 }
|
|
has_many :rag_document_fragments, dependent: :destroy, as: :target
|
|
|
|
belongs_to :created_by, class_name: "User"
|
|
belongs_to :user
|
|
|
|
has_many :upload_references, as: :target, dependent: :destroy
|
|
has_many :uploads, through: :upload_references
|
|
|
|
before_destroy :ensure_not_system
|
|
before_update :regenerate_rag_fragments
|
|
|
|
def self.persona_cache
|
|
@persona_cache ||= ::DiscourseAi::MultisiteHash.new("persona_cache")
|
|
end
|
|
|
|
scope :ordered, -> { order("priority DESC, lower(name) ASC") }
|
|
|
|
def self.all_personas
|
|
persona_cache[:value] ||= AiPersona
|
|
.ordered
|
|
.where(enabled: true)
|
|
.all
|
|
.limit(MAX_PERSONAS_PER_SITE)
|
|
.map(&:class_instance)
|
|
end
|
|
|
|
def self.persona_users(user: nil)
|
|
persona_users =
|
|
persona_cache[:persona_users] ||= AiPersona
|
|
.where(enabled: true)
|
|
.joins(:user)
|
|
.map do |persona|
|
|
{
|
|
id: persona.id,
|
|
user_id: persona.user_id,
|
|
username: persona.user.username_lower,
|
|
allowed_group_ids: persona.allowed_group_ids,
|
|
default_llm: persona.default_llm,
|
|
force_default_llm: persona.force_default_llm,
|
|
allow_chat_channel_mentions: persona.allow_chat_channel_mentions,
|
|
allow_chat_direct_messages: persona.allow_chat_direct_messages,
|
|
allow_topic_mentions: persona.allow_topic_mentions,
|
|
allow_personal_messages: persona.allow_personal_messages,
|
|
}
|
|
end
|
|
|
|
if user
|
|
persona_users.select { |persona_user| user.in_any_groups?(persona_user[:allowed_group_ids]) }
|
|
else
|
|
persona_users
|
|
end
|
|
end
|
|
|
|
def self.allowed_modalities(
|
|
user: nil,
|
|
allow_chat_channel_mentions: false,
|
|
allow_chat_direct_messages: false,
|
|
allow_topic_mentions: false,
|
|
allow_personal_messages: false
|
|
)
|
|
index =
|
|
"modality-#{allow_chat_channel_mentions}-#{allow_chat_direct_messages}-#{allow_topic_mentions}-#{allow_personal_messages}"
|
|
|
|
personas =
|
|
persona_cache[index.to_sym] ||= persona_users.select do |persona|
|
|
next true if allow_chat_channel_mentions && persona[:allow_chat_channel_mentions]
|
|
next true if allow_chat_direct_messages && persona[:allow_chat_direct_messages]
|
|
next true if allow_topic_mentions && persona[:allow_topic_mentions]
|
|
next true if allow_personal_messages && persona[:allow_personal_messages]
|
|
false
|
|
end
|
|
|
|
if user
|
|
personas.select { |u| user.in_any_groups?(u[:allowed_group_ids]) }
|
|
else
|
|
personas
|
|
end
|
|
end
|
|
|
|
after_commit :bump_cache
|
|
|
|
def bump_cache
|
|
self.class.persona_cache.flush!
|
|
end
|
|
|
|
def class_instance
|
|
attributes = %i[
|
|
id
|
|
user_id
|
|
system
|
|
mentionable
|
|
default_llm
|
|
max_context_posts
|
|
vision_enabled
|
|
vision_max_pixels
|
|
rag_conversation_chunks
|
|
question_consolidator_llm
|
|
allow_chat_channel_mentions
|
|
allow_chat_direct_messages
|
|
allow_topic_mentions
|
|
allow_personal_messages
|
|
force_default_llm
|
|
name
|
|
description
|
|
allowed_group_ids
|
|
tool_details
|
|
]
|
|
|
|
persona_class = DiscourseAi::AiBot::Personas::Persona.system_personas_by_id[self.id]
|
|
|
|
instance_attributes = {}
|
|
attributes.each do |attr|
|
|
value = self.read_attribute(attr)
|
|
instance_attributes[attr] = value
|
|
end
|
|
|
|
instance_attributes[:username] = user&.username_lower
|
|
|
|
if persona_class
|
|
instance_attributes.each do |key, value|
|
|
# description/name are localized
|
|
persona_class.define_singleton_method(key) { value } if key != :description && key != :name
|
|
end
|
|
return persona_class
|
|
end
|
|
|
|
options = {}
|
|
force_tool_use = []
|
|
|
|
tools =
|
|
self.tools.filter_map do |element|
|
|
klass = nil
|
|
|
|
element = [element] if element.is_a?(String)
|
|
|
|
inner_name, current_options, should_force_tool_use =
|
|
element.is_a?(Array) ? element : [element, nil]
|
|
|
|
if inner_name.start_with?("custom-")
|
|
custom_tool_id = inner_name.split("-", 2).last.to_i
|
|
if AiTool.exists?(id: custom_tool_id, enabled: true)
|
|
klass = DiscourseAi::AiBot::Tools::Custom.class_instance(custom_tool_id)
|
|
end
|
|
else
|
|
inner_name = inner_name.gsub("Tool", "")
|
|
inner_name = "List#{inner_name}" if %w[Categories Tags].include?(inner_name)
|
|
|
|
begin
|
|
klass = "DiscourseAi::AiBot::Tools::#{inner_name}".constantize
|
|
options[klass] = current_options if current_options
|
|
rescue StandardError
|
|
end
|
|
end
|
|
|
|
force_tool_use << klass if should_force_tool_use
|
|
klass
|
|
end
|
|
|
|
ai_persona_id = self.id
|
|
|
|
Class.new(DiscourseAi::AiBot::Personas::Persona) do
|
|
instance_attributes.each { |key, value| define_singleton_method(key) { value } }
|
|
|
|
define_singleton_method(:to_s) do
|
|
"#<#{self.class.name} @name=#{name} @allowed_group_ids=#{allowed_group_ids.join(",")}>"
|
|
end
|
|
|
|
define_singleton_method(:inspect) { to_s }
|
|
|
|
define_method(:initialize) do |*args, **kwargs|
|
|
@ai_persona = AiPersona.find_by(id: ai_persona_id)
|
|
super(*args, **kwargs)
|
|
end
|
|
|
|
define_method(:tools) { tools }
|
|
define_method(:force_tool_use) { force_tool_use }
|
|
define_method(:forced_tool_count) { @ai_persona&.forced_tool_count }
|
|
define_method(:options) { options }
|
|
define_method(:temperature) { @ai_persona&.temperature }
|
|
define_method(:top_p) { @ai_persona&.top_p }
|
|
define_method(:system_prompt) { @ai_persona&.system_prompt || "You are a helpful bot." }
|
|
define_method(:uploads) { @ai_persona&.uploads }
|
|
end
|
|
end
|
|
|
|
FIRST_PERSONA_USER_ID = -1200
|
|
|
|
def create_user!
|
|
raise "User already exists" if user_id && User.exists?(user_id)
|
|
|
|
# find the first id smaller than FIRST_USER_ID that is not taken
|
|
id = nil
|
|
|
|
id = DB.query_single(<<~SQL, FIRST_PERSONA_USER_ID, FIRST_PERSONA_USER_ID - 200).first
|
|
WITH seq AS (
|
|
SELECT generate_series(?, ?, -1) AS id
|
|
)
|
|
SELECT seq.id FROM seq
|
|
LEFT JOIN users ON users.id = seq.id
|
|
WHERE users.id IS NULL
|
|
ORDER BY seq.id DESC
|
|
SQL
|
|
|
|
id = DB.query_single(<<~SQL).first if id.nil?
|
|
SELECT min(id) - 1 FROM users
|
|
SQL
|
|
|
|
# note .invalid is a reserved TLD which will route nowhere
|
|
user =
|
|
User.new(
|
|
email: "#{SecureRandom.hex}@does-not-exist.invalid",
|
|
name: name.titleize,
|
|
username: UserNameSuggester.suggest(name + "_bot"),
|
|
active: true,
|
|
approved: true,
|
|
trust_level: TrustLevel[4],
|
|
id: id,
|
|
)
|
|
user.save!(validate: false)
|
|
|
|
update!(user_id: user.id)
|
|
user
|
|
end
|
|
|
|
def regenerate_rag_fragments
|
|
if rag_chunk_tokens_changed? || rag_chunk_overlap_tokens_changed?
|
|
RagDocumentFragment.where(target: self).delete_all
|
|
end
|
|
end
|
|
|
|
private
|
|
|
|
def chat_preconditions
|
|
if (
|
|
allow_chat_channel_mentions || allow_chat_direct_messages || allow_topic_mentions ||
|
|
force_default_llm
|
|
) && !default_llm
|
|
errors.add(:default_llm, I18n.t("discourse_ai.ai_bot.personas.default_llm_required"))
|
|
end
|
|
end
|
|
|
|
def system_persona_unchangeable
|
|
if top_p_changed? || temperature_changed? || system_prompt_changed? || tools_changed? ||
|
|
name_changed? || description_changed?
|
|
errors.add(:base, I18n.t("discourse_ai.ai_bot.personas.cannot_edit_system_persona"))
|
|
end
|
|
end
|
|
|
|
def ensure_not_system
|
|
if system
|
|
errors.add(:base, I18n.t("discourse_ai.ai_bot.personas.cannot_delete_system_persona"))
|
|
throw :abort
|
|
end
|
|
end
|
|
end
|
|
|
|
# == Schema Information
|
|
#
|
|
# Table name: ai_personas
|
|
#
|
|
# id :bigint not null, primary key
|
|
# name :string(100) not null
|
|
# description :string(2000) not null
|
|
# system_prompt :string(10000000) not null
|
|
# allowed_group_ids :integer default([]), not null, is an Array
|
|
# created_by_id :integer
|
|
# enabled :boolean default(TRUE), not null
|
|
# created_at :datetime not null
|
|
# updated_at :datetime not null
|
|
# system :boolean default(FALSE), not null
|
|
# priority :boolean default(FALSE), not null
|
|
# temperature :float
|
|
# top_p :float
|
|
# user_id :integer
|
|
# default_llm :text
|
|
# max_context_posts :integer
|
|
# max_post_context_tokens :integer
|
|
# max_context_tokens :integer
|
|
# vision_enabled :boolean default(FALSE), not null
|
|
# vision_max_pixels :integer default(1048576), not null
|
|
# rag_chunk_tokens :integer default(374), not null
|
|
# rag_chunk_overlap_tokens :integer default(10), not null
|
|
# rag_conversation_chunks :integer default(10), not null
|
|
# question_consolidator_llm :text
|
|
# tool_details :boolean default(TRUE), not null
|
|
# tools :json not null
|
|
# forced_tool_count :integer default(-1), not null
|
|
# allow_chat_channel_mentions :boolean default(FALSE), not null
|
|
# allow_chat_direct_messages :boolean default(FALSE), not null
|
|
# allow_topic_mentions :boolean default(FALSE), not null
|
|
# allow_personal_message :boolean default(TRUE), not null
|
|
# force_default_llm :boolean default(FALSE), not null
|
|
#
|
|
# Indexes
|
|
#
|
|
# index_ai_personas_on_name (name) UNIQUE
|
|
#
|