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package main
// Integration with the Ollama local AI API. It allows the editor to check AI
// availability and generate text completions.
import (
"bytes"
"encoding/json"
"fmt"
"io"
"net/http"
"time"
"github.com/nsf/termbox-go"
)
// OllamaClient handles HTTP requests to the Ollama server.
type OllamaClient struct {
IsOnline bool // Current availability of the local LLM.
URL string // Base API endpoint for status checks.
}
// GenerateRequest defines the payload for text generation.
type GenerateRequest struct {
Model string `json:"model"`
Prompt string `json:"prompt"`
Stream bool `json:"stream"`
}
// GenerateResponse defines the server's reply for text generation.
type GenerateResponse struct {
Model string `json:"model"`
Response string `json:"response"`
Done bool `json:"done"`
}
// NewOllamaClient initializes the client with the configured URL.
func NewOllamaClient() *OllamaClient {
return &OllamaClient{
IsOnline: false,
URL: fmt.Sprintf("%s/api/tags", Config.OllamaURL),
}
}
// PeriodicStatusCheck starts a background goroutine to monitor AI availability.
func (c *OllamaClient) PeriodicStatusCheck() {
go func() {
for {
prevStatus := c.IsOnline
currentStatus := c.CheckStatus()
// If status changes, trigger a UI update to refresh the AI indicator.
if prevStatus != currentStatus {
termbox.Interrupt()
}
time.Sleep(Config.OllamaCheckInterval)
}
}()
}
// CheckStatus pings the Ollama server to see if it responds.
func (c *OllamaClient) CheckStatus() bool {
client := http.Client{
Timeout: 1 * time.Second, // Fail fast if server is down.
}
resp, err := client.Get(c.URL)
if err != nil {
c.IsOnline = false
return false
}
defer resp.Body.Close()
if resp.StatusCode == http.StatusOK {
c.IsOnline = true
} else {
c.IsOnline = false
}
return c.IsOnline
}
// Generate sends a prompt to the LLM and returns the generated text.
func (c *OllamaClient) Generate(prompt string) (string, error) {
url := fmt.Sprintf("%s/api/generate", Config.OllamaURL)
reqBody := GenerateRequest{
Model: Config.OllamaModel,
Prompt: prompt,
Stream: false, // We want the full result at once for simplified handling.
}
jsonData, err := json.Marshal(reqBody)
if err != nil {
return "", err
}
resp, err := http.Post(url, "application/json", bytes.NewBuffer(jsonData))
if err != nil {
return "", err
}
defer resp.Body.Close()
if resp.StatusCode != http.StatusOK {
return "", fmt.Errorf("ollama error: %s", resp.Status)
}
body, err := io.ReadAll(resp.Body)
if err != nil {
return "", err
}
var genResp GenerateResponse
if err := json.Unmarshal(body, &genResp); err != nil {
return "", err
}
return genResp.Response, nil
}
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