Rodin
700f186023
- CLI binary with flag/env var configuration - Gitea API client (PR metadata, diff, CI status, post review) - OpenAI-compatible LLM client - Structured review prompt with conventions support - JSON response parser with validation - Markdown review formatter for Gitea - CI failure auto-detection (REQUEST_CHANGES) - Dry-run mode for testing
100 lines
2.3 KiB
Go
100 lines
2.3 KiB
Go
package llm
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import (
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"bytes"
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"encoding/json"
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"fmt"
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"io"
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"net/http"
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"strings"
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)
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// Client calls an OpenAI-compatible chat completion API.
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type Client struct {
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BaseURL string
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APIKey string
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Model string
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HTTP *http.Client
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}
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// NewClient creates a new LLM client.
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func NewClient(baseURL, apiKey, model string) *Client {
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return &Client{
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BaseURL: strings.TrimRight(baseURL, "/"),
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APIKey: apiKey,
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Model: model,
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HTTP: &http.Client{},
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}
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}
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// Message represents a chat message.
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type Message struct {
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Role string `json:"role"`
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Content string `json:"content"`
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}
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// ChatRequest is the request payload.
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type ChatRequest struct {
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Model string `json:"model"`
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Messages []Message `json:"messages"`
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Temperature float64 `json:"temperature"`
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}
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// ChatResponse is the response from the API.
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type ChatResponse struct {
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Choices []struct {
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Message struct {
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Content string `json:"content"`
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} `json:"message"`
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} `json:"choices"`
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}
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// Complete sends a chat completion request and returns the assistant's response content.
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func (c *Client) Complete(messages []Message) (string, error) {
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reqBody := ChatRequest{
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Model: c.Model,
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Messages: messages,
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Temperature: 0.1,
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}
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data, err := json.Marshal(reqBody)
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if err != nil {
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return "", fmt.Errorf("marshal request: %w", err)
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}
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url := c.BaseURL + "/chat/completions"
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req, err := http.NewRequest("POST", url, bytes.NewReader(data))
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if err != nil {
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return "", fmt.Errorf("create request: %w", err)
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}
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req.Header.Set("Authorization", "Bearer "+c.APIKey)
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req.Header.Set("Content-Type", "application/json")
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resp, err := c.HTTP.Do(req)
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if err != nil {
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return "", fmt.Errorf("LLM request: %w", err)
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}
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defer resp.Body.Close()
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if resp.StatusCode < 200 || resp.StatusCode >= 300 {
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body, _ := io.ReadAll(resp.Body)
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return "", fmt.Errorf("LLM API error (status %d): %s", resp.StatusCode, string(body))
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}
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body, err := io.ReadAll(resp.Body)
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if err != nil {
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return "", fmt.Errorf("read response: %w", err)
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}
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var chatResp ChatResponse
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if err := json.Unmarshal(body, &chatResp); err != nil {
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return "", fmt.Errorf("parse response: %w", err)
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}
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if len(chatResp.Choices) == 0 {
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return "", fmt.Errorf("no choices in LLM response")
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}
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return chatResp.Choices[0].Message.Content, nil
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}
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