r/openai.h

// Written by retoor@molodetz.nl

// This code interacts with OpenAI's API to perform various tasks such as fetching models, sending chat messages, and processing responses.

// Uncommon imports include "http.h", "chat.h", and "http_curl.h". These may be internal or external libraries providing HTTP and JSON communication capabilities required to interact with APIs.

// MIT License
//
// Copyright (c) 2023
//
// Permission is hereby granted, free of charge, to any person obtaining a copy
// of this software and associated documentation files (the "Software"), to deal
// in the Software without restriction, including without limitation the rights
// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
// copies of the Software, and to permit persons to whom the Software is
// furnished to do so, subject to the following conditions:
//
// The above copyright notice and this permission notice shall be included in all
// copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
// SOFTWARE.


#ifndef R_OPENAI_H
#define R_OPENAI_H

#include "chat.h"
#include "http_curl.h"
#include <string.h>
#include <stdbool.h>

char* openai_fetch_models() {
    const char* api_url = "https://api.openai.com/v1/models";
    return curl_get(api_url);
}

bool openai_system(char* message_content) {
    chat_json("system", message_content);
    return true;
}

struct json_object* openai_process_chat_message(const char* api_url, const char* json_data) {
    char* response = curl_post(api_url, json_data);
    struct json_object* parsed_json = json_tokener_parse(response);
    if (!parsed_json) {
        fprintf(stderr, "Failed to parse JSON.\n%s\n", response);
        return NULL;
    }
    struct json_object *error_object;
    if (json_object_object_get_ex(parsed_json, "error", &error_object)) {

        char *all_messages = (char *)json_object_to_json_string(message_array);

        

        fprintf(stderr, "Messages: ");
        fwrite(all_messages, strlen(all_messages), 1, stderr);
        fprintf(stderr, "\n");
        free(all_messages);
        
        fprintf(stderr,"%s\n",json_object_to_json_string(parsed_json));
        
        json_object_put(parsed_json);
        messages_remove_last();

        messages_remove_last();

        return NULL;
    }

    struct json_object* choices_array;
    if (!json_object_object_get_ex(parsed_json, "choices", &choices_array)) {
        fprintf(stderr, "Failed to get 'choices' array.\n%s\n", response);
        json_object_put(parsed_json);
        return NULL;
    }
    struct json_object* first_choice = json_object_array_get_idx(choices_array, 0);
    if (!first_choice) {
        fprintf(stderr, "Failed to get the first element of 'choices'.\n");
        json_object_put(parsed_json);
        return NULL;
    }
    struct json_object* message_object;
    if (!json_object_object_get_ex(first_choice, "message", &message_object)) {
        fprintf(stderr, "Failed to get 'message' object.\n");
        json_object_put(parsed_json);
        return NULL;
    }
    return message_object;
}

char* openai_chat(const char* user_role, const char* message_content) {
    if(message_content == NULL || *message_content == '\0' || *message_content == '\n') {
        return NULL;        
    }   
        
    
    const char* api_url = "https://api.openai.com/v1/chat/completions";
    char* json_data = chat_json(user_role, message_content);
    struct json_object* message_object = openai_process_chat_message(api_url, json_data);
    message_add_object(message_object);
    if (message_object == NULL) {
        printf("ERROR + NULL IS SUCCESS\n");
        return NULL;
    }
    struct json_object* tool_calls;
    json_object_object_get_ex(message_object, "tool_calls", &tool_calls);
    if (tool_calls) {
    //    message_add_tool_call(message_object);
        struct json_object* tool_call_results = tools_execute(tool_calls);
        int results_count = json_object_array_length(tool_call_results);
        for (int i = 0; i < results_count; i++) {
            struct json_object* tool_call_result = json_object_array_get_idx(tool_call_results, i);
            message_add_tool_call(tool_call_result);
        }
        char* tool_calls_result_str = chat_json(NULL, NULL);
        message_object = openai_process_chat_message(api_url, tool_calls_result_str);
        if (message_object == NULL) {
            return NULL;
        }
        message_add_object(message_object);
        //message_add_tool_call(message_object);
    }
    const char* content_str = json_object_get_string(json_object_object_get(message_object, "content"));
    return strdup(content_str);
}

#endif