package ollama

import (
	"encoding/json"
	"errors"
	"fmt"
	"net/http"
)

type GetVersionResponse struct {
	Version string `json:"version"`
}

func (o Ollama) GetVersion() (GetVersionResponse, int, error) {
	req, err := http.NewRequest(http.MethodGet, fmt.Sprintf("%s/version", o.baseUrl), nil)
	if err != nil {
		return GetVersionResponse{}, -1, err
	}

	for key, val := range o.customHeaders {
		req.Header.Set(key, val)
	}

	resp, err := http.DefaultClient.Do(req)
	if err != nil {
		return GetVersionResponse{}, -1, err
	}
	defer resp.Body.Close()

	if resp.StatusCode != 200 {
		return GetVersionResponse{}, resp.StatusCode, errors.New("status code is not 200")
	}

	var respBody GetVersionResponse
	if err := json.NewDecoder(resp.Body).Decode(&respBody); err != nil {
		return GetVersionResponse{}, -1, err
	}
	return respBody, resp.StatusCode, nil
}