(PowerBuilder) Demonstrates Manual Tool Function Calls

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Note: This example requires Chilkat v11.4.0 or greater.

For more information, see https://www.chilkatsoft.com/ai_tool_function_caling_briefly_explained.asp

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integer li_rc
integer li_Success
oleobject loo_JsonTools
integer li_ToolIdx
oleobject loo_Ai
string ls_Conversation_name
string ls_SysMessage
string ls_DevMessage
oleobject loo_JsonFn
integer li_NumFnCalls
integer li_Fn_idx
oleobject loo_SbFnName
string ls_CallId
string ls_Zodiac_sign
string ls_ApplicationFnCallResult
oleobject loo_SbResponse

li_Success = 0

// Create the following JSON to define tool functions available for the AI to use.
// Note: You'll use the following JSON format regardless of the AI provider, whether
// it be ChatGPT, Gemini, Claude, Grok, etc.  Chilkat automatically converts to the required
// format needed for a given AI provider.

// In this example, the application is providing two functions the AI may choose to call.

// {
//   "tools": [
//     {
//       "name": "get_horoscope",
//       "description": "Get today's horoscope for an astrological sign.",
//       "parameters": {
//         "properties": {
//           "sign": {
//             "type": "string",
//             "description": "An astrological sign like Taurus or Aquarius"
//           }
//         }
//       }
//     },
//     {
//       "name": "get_compatibility",
//       "description": "Returns compatibility analysis between two zodiac signs, including a score and explanation.",
//       "parameters": {
//         "properties": {
//           "sign1": {
//             "type": "string",
//             "description": "The first zodiac sign (e.g., Aries, Taurus, Gemini)."
//           },
//           "sign2": {
//             "type": "string",
//             "description": "The second zodiac sign (e.g., Aries, Taurus, Gemini)."
//           },
//           "relationship_type": {
//             "type": "string",
//             "description": "Type of compatibility to evaluate. (e.g., romantic, friendship, professional, general)"
//           },
//           "detail_level": {
//             "type": "string",
//             "description": "Level of detail in the response. (e.g., short, medium, detailed)"
//           }
//         }
//       }
//     }
//   ]
// }

loo_JsonTools = create oleobject
li_rc = loo_JsonTools.ConnectToNewObject("Chilkat.JsonObject")
if li_rc < 0 then
    destroy loo_JsonTools
    MessageBox("Error","Connecting to COM object failed")
    return
end if

li_ToolIdx = 0

loo_JsonTools.I = li_ToolIdx
loo_JsonTools.UpdateString("tools[i].name","get_horoscope")
loo_JsonTools.UpdateString("tools[i].description","Get today's horoscope for an astrological sign.")
loo_JsonTools.UpdateString("tools[i].parameters.properties.sign.type","string")
loo_JsonTools.UpdateString("tools[i].parameters.properties.sign.description","An astrological sign like Taurus or Aquarius")

li_ToolIdx = li_ToolIdx + 1
loo_JsonTools.I = li_ToolIdx
loo_JsonTools.UpdateString("tools[i].name","get_compatibility")
loo_JsonTools.UpdateString("tools[i].description","Returns compatibility analysis between two zodiac signs, including a score and explanation.")
loo_JsonTools.UpdateString("tools[i].parameters.properties.sign1.type","string")
loo_JsonTools.UpdateString("tools[i].parameters.properties.sign1.description","The first zodiac sign (e.g., Aries, Taurus, Gemini).")
loo_JsonTools.UpdateString("tools[i].parameters.properties.sign2.type","string")
loo_JsonTools.UpdateString("tools[i].parameters.properties.sign2.description","The second zodiac sign (e.g., Aries, Taurus, Gemini).")
loo_JsonTools.UpdateString("tools[i].parameters.properties.relationship_type.type","string")
loo_JsonTools.UpdateString("tools[i].parameters.properties.relationship_type.description","Type of compatibility to evaluate. (e.g., romantic, friendship, professional, general)")
loo_JsonTools.UpdateString("tools[i].parameters.properties.detail_level.type","string")
loo_JsonTools.UpdateString("tools[i].parameters.properties.detail_level.description","Level of detail in the response. (e.g., short, medium, detailed)")

// More tools can be added as desired..

loo_JsonTools.EmitCompact = 0
Write-Debug loo_JsonTools.Emit()

loo_Ai = create oleobject
li_rc = loo_Ai.ConnectToNewObject("Chilkat.Ai")

// Register the tools that will be made available to the AI.
loo_Ai.RegisterManualTools(loo_JsonTools)

// The provider can be "openai", "google", "claude", "grok", "mistral", "custom", etc.
loo_Ai.Provider = "openai"
// Use your provider's API key.
loo_Ai.ApiKey = "MY_API_KEY"
// Choose a model.
loo_Ai.Model = "gpt-5-mini"

// Tool function calling must always occur within a conversation.
ls_Conversation_name = "convo_astrology"
ls_SysMessage = "You are a helpful astrologer"
ls_DevMessage = "Respond only with a horoscope generated by a tool. Use the tool output as the final answer."
loo_Ai.NewConvo(ls_Conversation_name,ls_SysMessage,ls_DevMessage)

// Provide inputs
loo_Ai.InputAddText("What is my horoscope? I am an Aquarius.")

// Send inputs, tool functions, etc. and ask for a "text" response.
li_Success = loo_Ai.Ask("text")
if li_Success = 0 then
    Write-Debug loo_Ai.LastErrorText
    destroy loo_JsonTools
    destroy loo_Ai
    return
end if

// Did the AI respond with requests for tool function calls?
if loo_Ai.HasFunctionCalls = 1 then

    loo_JsonFn = create oleobject
    li_rc = loo_JsonFn.ConnectToNewObject("Chilkat.JsonObject")

    loo_JsonFn.EmitCompact = 0

    loo_Ai.GetFunctionCalls(loo_JsonFn)
    Write-Debug loo_JsonFn.Emit()

    // Note: Chilkat will convert responses from all AI providers to this format:

    // {
    //   "function_call": [
    //     {
    //       "name": "get_horoscope",
    //       "call_id": "call_RYmeysYQFocFc7Z2ofkv61dW",
    //       "arguments": "{\"sign\":\"Aquarius\"}",
    //       "args": {
    //         "sign": "Aquarius"
    //       }
    //     }
    //   ]
    // }

    li_NumFnCalls = loo_JsonFn.SizeOfArray("function_call")
    li_Fn_idx = 0
    do while (li_Fn_idx < li_NumFnCalls)
        loo_JsonFn.I = li_Fn_idx

        loo_SbFnName = create oleobject
        li_rc = loo_SbFnName.ConnectToNewObject("Chilkat.StringBuilder")

        loo_JsonFn.StringOfSb("function_call[i].name",loo_SbFnName)
        ls_CallId = loo_JsonFn.StringOf("function_call[i].call_id")

        if loo_SbFnName.ContentsEqual("get_horoscope",1) = 1 then

            // The get_horoscope function (as defined above) has one argument named "sign".
            ls_Zodiac_sign = loo_JsonFn.StringOf("function_call[i].args.sign")
            Write-Debug "zodiac_sign = " + ls_Zodiac_sign

            // Insert application code here to call your app's get_horoscope function, passing the zodiac_sign to it..

            // For this example, we'll pretend the app's get_horoscope function returned the following:
            ls_ApplicationFnCallResult = "Aquarius: Next Tuesday you will befriend a baby otter."

            // Provide the tool call result as an input for the followup Ask.
            loo_Ai.InputAddFnResult(ls_CallId,ls_ApplicationFnCallResult)
        end if

        // Your application would add code to check for and handle each possible function call.

        li_Fn_idx = li_Fn_idx + 1
    loop

    // After making the requested tool function calls, send the results back to the AI.
    li_Success = loo_Ai.Ask("text")
    if li_Success = 0 then
        Write-Debug loo_Ai.LastErrorText
        destroy loo_JsonTools
        destroy loo_Ai
        destroy loo_JsonFn
        destroy loo_SbFnName
        return
    end if

end if

// Get the final AI response.
loo_SbResponse = create oleobject
li_rc = loo_SbResponse.ConnectToNewObject("Chilkat.StringBuilder")

loo_Ai.GetOutputTextSb(loo_SbResponse)
Write-Debug loo_SbResponse.GetAsString()


destroy loo_JsonTools
destroy loo_Ai
destroy loo_JsonFn
destroy loo_SbFnName
destroy loo_SbResponse