package release

import (
	"context"
	"fmt"
	"net/http"

	"golang.org/x/mod/semver"
	"github.com/google/go-github/v55/github"
	"github.com/pkg/errors"
)

func GetAll(ctx context.Context) (ret []*github.RepositoryRelease, err error) {
	c := github.NewClient(nil)
	if c == nil {
		return nil, fmt.Errorf("failed to obtain Github client")
	}

	list, resp, err := c.Repositories.ListReleases(ctx, "siderolabs", "talos", nil)
	if err != nil {
		return nil, errors.Wrap(err, "failed to list Talos releases")
	}

	if resp.StatusCode != http.StatusOK {
		return nil, errors.Errorf("received non-200 response code (%d) from Github release list request", resp.StatusCode)
	}

	for _, r := range list {
		if r.GetDraft() || r.GetPrerelease() {
			continue
		}

		ret = append(ret, r)
	}

	return ret, nil
}

func GetAfter(ctx context.Context, referenceRelease string) (ret []*github.RepositoryRelease, err error) {
	if !semver.IsValid(referenceRelease) {
		return nil, errors.Wrap(err, "failed to parse reference release")
	}

	list, err := GetAll(ctx)
	if err != nil {
		return nil, err
	}

	for _, r := range list {
		if semver.Compare(referenceRelease, r.GetName()) < 0 {
			ret = append(ret, r)
		}
	}

	return ret, nil
}