FIX: array arguments not parsed correctly (#405)

DALL E command accepts an Array as a tool argument, this was not
parsed correctly by the invoker leading to errors generating
images with DALL E

Side quest ... don't use update! it calls validations and will now
fail due to email validation

lib/ai_bot/personas/persona.rb

@@ -122,15 +122,21 @@ module DiscourseAi
           tool_klass = available_tools.find { |c| c.signature.dig(:name) == function_name }
           return false if tool_klass.nil?
 
-          arguments =
-            tool_klass.signature[:parameters]
-              .to_a
-              .reduce({}) do |memo, p|
-                argument = parsed_function.at(p[:name])&.text
-                next(memo) unless argument
+          arguments = {}
+          tool_klass.signature[:parameters].to_a.each do |param|
+            name = param[:name]
+            value = parsed_function.at(name)&.text
 
-                memo[p[:name].to_sym] = argument
-                memo
+            if param[:type] == "array" && value
+              value =
+                begin
+                  JSON.parse(value)
+                rescue JSON::ParserError
+                  nil
+                end
+            end
+
+            arguments[name.to_sym] = value if value
           end
 
           tool_klass.new(

lib/ai_bot/site_settings_extension.rb

@@ -24,14 +24,14 @@ module DiscourseAi::AiBot::SiteSettingsExtension
             )
           user.save!(validate: false)
         else
-          user.update!(active: true)
+          user.update_columns(active: true)
         end
       elsif !active && user
         # will include deleted
         has_posts = DB.query_single("SELECT 1 FROM posts WHERE user_id = #{id} LIMIT 1").present?
 
         if has_posts
-          user.update!(active: false) if user.active
+          user.update_columns(active: false) if user.active
         else
           user.destroy
         end

spec/lib/modules/ai_bot/personas/persona_spec.rb

@@ -20,8 +20,7 @@ class TestPersona < DiscourseAi::AiBot::Personas::Persona
   end
 end
 
-module DiscourseAi::AiBot::Personas
-  RSpec.describe Persona do
+RSpec.describe DiscourseAi::AiBot::Personas::Persona do
   let :persona do
     TestPersona.new
   end
@@ -69,6 +68,25 @@ module DiscourseAi::AiBot::Personas
     expect(tools.find { |t| t[:name] == "image" }).to be_nil
   end
 
+  it "can correctly parse arrays in tools" do
+    SiteSetting.ai_openai_api_key = "123"
+
+    # Dall E tool uses an array for params
+    xml = <<~XML
+      <function_calls>
+        <invoke>
+        <tool_name>dall_e</tool_name>
+        <tool_id>call_JtYQMful5QKqw97XFsHzPweB</tool_id>
+        <parameters>
+        <prompts>["cat oil painting", "big car"]</prompts>
+        </parameters>
+        </invoke>
+      </function_calls>
+    XML
+    dall_e = DiscourseAi::AiBot::Personas::DallE3.new.find_tool(xml)
+    expect(dall_e.parameters[:prompts]).to eq(["cat oil painting", "big car"])
+  end
+
   describe "custom personas" do
     it "is able to find custom personas" do
       Group.refresh_automatic_groups!
@@ -121,7 +139,14 @@ module DiscourseAi::AiBot::Personas
 
       # should be ordered by priority and then alpha
       expect(DiscourseAi::AiBot::Personas::Persona.all(user: user)).to eq(
-          [General, Artist, Creative, Researcher, SettingsExplorer, SqlHelper],
+        [
+          DiscourseAi::AiBot::Personas::General,
+          DiscourseAi::AiBot::Personas::Artist,
+          DiscourseAi::AiBot::Personas::Creative,
+          DiscourseAi::AiBot::Personas::Researcher,
+          DiscourseAi::AiBot::Personas::SettingsExplorer,
+          DiscourseAi::AiBot::Personas::SqlHelper,
+        ],
       )
 
       # omits personas if key is missing
@@ -129,22 +154,23 @@ module DiscourseAi::AiBot::Personas
       SiteSetting.ai_google_custom_search_api_key = ""
 
       expect(DiscourseAi::AiBot::Personas::Persona.all(user: user)).to contain_exactly(
-          General,
-          SqlHelper,
-          SettingsExplorer,
-          Creative,
+        DiscourseAi::AiBot::Personas::General,
+        DiscourseAi::AiBot::Personas::SqlHelper,
+        DiscourseAi::AiBot::Personas::SettingsExplorer,
+        DiscourseAi::AiBot::Personas::Creative,
       )
 
-        AiPersona.find(DiscourseAi::AiBot::Personas::Persona.system_personas[General]).update!(
-          enabled: false,
-        )
+      AiPersona.find(
+        DiscourseAi::AiBot::Personas::Persona.system_personas[
+          DiscourseAi::AiBot::Personas::General
+        ],
+      ).update!(enabled: false)
 
       expect(DiscourseAi::AiBot::Personas::Persona.all(user: user)).to contain_exactly(
-          SqlHelper,
-          SettingsExplorer,
-          Creative,
+        DiscourseAi::AiBot::Personas::SqlHelper,
+        DiscourseAi::AiBot::Personas::SettingsExplorer,
+        DiscourseAi::AiBot::Personas::Creative,
       )
     end
   end
-  end
 end