package gitw

import (
	"errors"
	"fmt"
	"os/exec"
	"regexp"
	"strings"

	"gitea.yves-biener.de/yves-biener/gitwarrior/internal/gitea"
)

func Discover() (gitea.Repository, error) {
	var repository gitea.Repository
	cmd := exec.Command("git", "remote", "get-url", "origin")
	out, err := cmd.Output()
	if err != nil {
		return repository, err
	}
	re := regexp.MustCompile("^git@.*:(.*).git")
	matches := re.FindAllStringSubmatch(string(out), -1)
	var match string
	if len(matches) > 0 && len(matches[0]) == 2 {
		match = matches[0][1] // get the first match which is the Full_name of the repository
		if len(match) <= 0 {
			return repository, errors.New("No matching group found. Are you in a git repository?")
		}
	} else {
		return repository, errors.New("No matching group found. Are you in a git repository?")
	}
	repo := strings.Split(match, "/")
	if len(repo) != 2 {
		msg := fmt.Sprintf("Expected remote url to contain {owner}/{repo}, but found: %#v", repo)
		return repository, errors.New(msg)
	}
	return gitea.NewRepository(repo[1], repo[0]), nil
}