Update.

Makefile

@@ -1,4 +1,4 @@
-all: build build_rpylib run
+all: build build_free build_rpylib run_free
 
 # Variables for compiler and flags
 CC = gcc
@@ -9,9 +9,16 @@ build:
 	$(CC) main.c $(CFLAGS) -o r
 	publish r
 
+build_free:
+	$(CC) -DOLLAMA main.c $(CFLAGS) -o rf
+	publish rf
+
 build_rpylib:
 	$(CC) -shared -o rpylib.so -fPIC rpylib.c -lpython3.12 `python3-config --includes` -I/usr/include/CL -ljson-c -lcurl -lsqlite3
 	publish rpylib.so
 
 run: 
 	./r --verbose
+
+run_free:
+	./rf --verbose

main.c

@@ -219,12 +219,20 @@ void repl() {
               is_verbose ? "Verbose mode enabled" : "Verbose mode disabled");
       continue;
     }
+    if (line && *line != '\n') {
+
+      line_add_history(line);
+    }
+    if (!strncmp(line, "!models", 7)) {
+      printf("Current model: %s\n", openai_fetch_models());
+      continue;
+    }
     if (!strncmp(line, "!model", 6)) {
       if (!strncmp(line + 6, " ", 1)) {
         line = line + 7;
         set_prompt_model(line);
       }
-      printf("%s\n", get_prompt_model());
+      printf("Current model: %s\n", get_prompt_model());
       continue;
     }
     if (!strncmp(line, "exit", 4)) {
@@ -239,7 +247,7 @@ void repl() {
       continue;
     }
     while (line && *line != '\n') {
-      line_add_history(line);
+
       char *response = openai_chat("user", line);
       if (response) {
         render(response);
@@ -253,6 +261,8 @@ void repl() {
         }
 
         free(response);
+      } else {
+        exit(0);
       }
     }
   }

openai.h

@@ -31,16 +31,13 @@
 
 #ifndef R_OPENAI_H
 #define R_OPENAI_H
-
 #include "chat.h"
 #include "http_curl.h"
+#include "r.h"
 #include <stdbool.h>
 #include <string.h>
 
-char *openai_fetch_models() {
-  const char *api_url = "https://api.openai.com/v1/models";
-  return curl_get(api_url);
-}
+char *openai_fetch_models() { return curl_get(models_api_url); }
 
 bool openai_system(char *message_content) {
   chat_json("system", message_content);
@@ -50,13 +47,18 @@ bool openai_system(char *message_content) {
 struct json_object *openai_process_chat_message(const char *api_url,
                                                 const char *json_data) {
   char *response = curl_post(api_url, json_data);
+  if (!response) {
+    fprintf(stderr, "Failed to get response.\n");
+    return NULL;
+  }
   struct json_object *parsed_json = json_tokener_parse(response);
   if (!parsed_json) {
-    fprintf(stderr, "Failed to parse JSON.\n%s\n", response);
+    fprintf(stderr, "Failed to parse JSON.\nContent: \"%s\"\n", response);
     return NULL;
   }
   struct json_object *error_object;
-  if (json_object_object_get_ex(parsed_json, "error", &error_object)) {
+  if (json_object_object_get_ex(parsed_json, "error", &error_object) &&
+      message_array) {
 
     char *all_messages = (char *)json_object_to_json_string(message_array);
 
@@ -103,16 +105,16 @@ char *openai_chat(const char *user_role, const char *message_content) {
     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);
+      openai_process_chat_message(completions_api_url, json_data);
+
   if (message_object == NULL) {
-    printf("ERROR + NULL IS SUCCESS\n");
     return NULL;
   }
+
+  message_add_object(message_object);
   struct json_object *tool_calls;
   json_object_object_get_ex(message_object, "tool_calls", &tool_calls);
   if (tool_calls) {
@@ -126,7 +128,7 @@ char *openai_chat(const char *user_role, const char *message_content) {
     }
     char *tool_calls_result_str = chat_json(NULL, NULL);
     message_object =
-        openai_process_chat_message(api_url, tool_calls_result_str);
+        openai_process_chat_message(completions_api_url, tool_calls_result_str);
     if (message_object == NULL) {
       return NULL;
     }

r.h

@@ -7,6 +7,19 @@
 #include <string.h>
 bool is_verbose = false;
 
+#ifndef OLLAMA
+char *models_api_url = "https://api.openai.com/v1/models";
+// char *completions_api_url = "https://ollama.molodetz.nl/v1/chat/completions";
+char *completions_api_url = "https://api.openai.com/v1/chat/completions";
+char *advanced_model = "gpt-4o-mini";
+char *fast_model = "gpt-3.5-turbo";
+#else
+char *models_api_url = "https://ollama.molodetz.nl/v1/models";
+char *completions_api_url = "https://ollama.molodetz.nl/v1/chat/completions";
+char *advanced_model = "qwen2.5:3b";
+char *fast_model = "qwen2.5:0.5b";
+#endif
+
 char *_model = NULL;
 
 #define DB_FILE "~/.r.db"
@@ -23,10 +36,10 @@ void set_prompt_model(const char *model) {
 const char *get_prompt_model() {
   if (auth_type != AUTH_TYPE_API_KEY) {
     if (_model == NULL) {
-      _model = strdup("gpt-3.5-turbo");
+      _model = strdup(fast_model);
     }
   } else if (_model == NULL) {
-    _model = strdup("gpt-4o-mini");
+    _model = strdup(advanced_model);
   }
   return _model;
 }