Function callOpenAI

server-source-code/internal/ai/service.go:317–359

OpenAI

(apiKey, model string, messages []Message, opts *callOptions)

// OpenAI
func callOpenAI(apiKey, model string, messages []Message, opts *callOptions) (string, error) {
	cfg := providers["openai"]
	if model == "" {
		model = cfg.defaultModel
	}
	body := map[string]interface{}{
		"model":       model,
		"messages":    messages,
		"max_tokens":  opts.maxTokens,
		"temperature": opts.temperature,
	}
	reqBody, _ := json.Marshal(body)
	req, err := http.NewRequest("POST", cfg.baseURL+"/chat/completions", bytes.NewReader(reqBody))
	if err != nil {
		return "", err
	}
	req.Header.Set("Content-Type", "application/json")
	req.Header.Set("Authorization", "Bearer "+apiKey)

	resp, err := http.DefaultClient.Do(req)
	if err != nil {
		return "", err
	}
	defer func() { _ = resp.Body.Close() }()
	data, _ := io.ReadAll(resp.Body)
	if resp.StatusCode != http.StatusOK {
		return "", fmt.Errorf("OpenAI API error: %d - %s", resp.StatusCode, string(data))
	}
	var out struct {
		Choices []struct {
			Message struct {
				Content string `json:"content"`
			} `json:"message"`
		} `json:"choices"`
	}
	if err := json.Unmarshal(data, &out); err != nil {
		return "", err
	}
	if len(out.Choices) > 0 {
		return out.Choices[0].Message.Content, nil
	}
	return "", nil
}

// Gemini
func callGemini(apiKey, model string, messages []Message, opts *callOptions) (string, error) {