package agent

import (
	"encoding/json"
	"fmt"
	"strings"
)

func parseDecision(raw string) (reactDecision, error) {
	raw = normalizeJSON(raw)
	start := strings.Index(raw, "{")
	end := strings.LastIndex(raw, "}")
	if start < 0 || end < start {
		return reactDecision{}, fmt.Errorf("no json object found")
	}
	raw = raw[start : end+1]

	var out reactDecision
	if err := json.Unmarshal([]byte(raw), &out); err != nil {
		return reactDecision{}, err
	}
	return out, nil
}

func normalizeJSON(raw string) string {
	raw = strings.TrimSpace(raw)
	raw = strings.TrimPrefix(raw, "```json")
	raw = strings.TrimPrefix(raw, "```")
	raw = strings.TrimSuffix(raw, "```")
	return strings.TrimSpace(raw)
}