Files
coding-agent/main.go
2026-04-17 11:12:45 +03:00

113 lines
2.7 KiB
Go

package main
import (
"bufio"
"context"
"fmt"
"os"
"strings"
)
const systemPrompt = `You are a coding assistant running inside a CLI. You have file tools scoped
to the current project directory. All paths are relative to the project root; absolute paths
and paths that escape the root (via "..") will be rejected. Prefer listing and reading before
editing. Keep replies concise.`
func main() {
root, err := os.Getwd()
if err != nil {
fmt.Fprintln(os.Stderr, "error getting working directory:", err)
os.Exit(1)
}
if err := loadConfig(root); err != nil {
fmt.Fprintln(os.Stderr, "config error:", err)
os.Exit(1)
}
apiKey := os.Getenv("OPENAI_API_KEY")
baseURL := getEnvDefault("OPENAI_BASE_URL", "https://api.openai.com/v1")
model := getEnvDefault("OPENAI_MODEL", "gpt-4o-mini")
if apiKey == "" {
fmt.Fprintln(os.Stderr, "OPENAI_API_KEY is not set")
os.Exit(1)
}
client := NewClient(baseURL, apiKey, model)
tools := toolDefinitions()
messages := []Message{{Role: "system", Content: systemPrompt}}
fmt.Printf("NyxTex agent — model=%s root=%s\n", model, root)
fmt.Println("Type your request. Empty line to submit. Ctrl+D or /exit to quit.")
reader := bufio.NewReader(os.Stdin)
for {
fmt.Print("\n> ")
input, err := readUserInput(reader)
if err != nil {
fmt.Println()
return
}
input = strings.TrimSpace(input)
if input == "" {
continue
}
if input == "/exit" || input == "/quit" {
return
}
messages = append(messages, Message{Role: "user", Content: input})
if err := runTurn(context.Background(), client, tools, root, &messages); err != nil {
fmt.Fprintln(os.Stderr, "error:", err)
}
}
}
func readUserInput(r *bufio.Reader) (string, error) {
line, err := r.ReadString('\n')
if err != nil && line == "" {
return "", err
}
return line, nil
}
// runTurn sends the conversation and handles any tool-call loop until the
// assistant produces a plain text reply.
func runTurn(ctx context.Context, client *Client, tools []Tool, root string, messages *[]Message) error {
for {
msg, err := client.Chat(ctx, *messages, tools)
if err != nil {
return err
}
*messages = append(*messages, msg)
if len(msg.ToolCalls) == 0 {
if strings.TrimSpace(msg.Content) != "" {
fmt.Println(msg.Content)
}
return nil
}
for _, tc := range msg.ToolCalls {
fmt.Printf(" [tool] %s %s\n", tc.Function.Name, tc.Function.Arguments)
result := runTool(root, tc.Function.Name, tc.Function.Arguments)
*messages = append(*messages, Message{
Role: "tool",
ToolCallID: tc.ID,
Name: tc.Function.Name,
Content: result,
})
}
}
}
func getEnvDefault(key, def string) string {
if v := os.Getenv(key); v != "" {
return v
}
return def
}