package startram

import (
	"fmt"
	"encoding/json"
	"os"
	"log/slog"
	"io/ioutil"
	"net/http"
	"goseg/config"
	"goseg/structs"
)

var (
	logger  = slog.New(slog.NewJSONHandler(os.Stdout, nil))
)

func GetRegions() (map[string]structs.StartramRegion, error) {
	var regions map[string]structs.StartramRegion
	config := config.Conf()
	regionUrl := "https://" + config.EndpointUrl + "/v1/regions"
	resp, err := http.Get(regionUrl)
	if err != nil {
		errmsg := fmt.Sprintf("Unable to connect to API server: %v", err)
		logger.Warn(errmsg)
		return regions, err
	}
	body, err := ioutil.ReadAll(resp.Body)
	resp.Body.Close()
	if err != nil {
		errmsg := fmt.Sprintf("Error reading regions info: %v", err)
		logger.Warn(errmsg)
		return regions, err
	}
	// unmarshal values into struct
	err = json.Unmarshal(body, &regions)
	if err != nil {
		errmsg := fmt.Sprintf("Error unmarshalling regions json: %v", err)
		fmt.Println(string(body))
		logger.Warn(errmsg)
		return regions, err
	}
	return regions, nil
}