// Git Definition fetcher
//
// Handles fetching and building ServiceDefinition structs from git
// repositories.

package service_definition

import (
	"os"
	git "spud/git"
	"strings"
)

type GitDefinitionFetcher struct {
	Git git.GitClient
}

func NewGitDefinitionFetcher() *GitDefinitionFetcher {
	return &GitDefinitionFetcher{
		Git: git.Git{},
	}
}

// Clones the target git repository and uses it as a basis to extract
// a service definition.
func (f GitDefinitionFetcher) GetDefinition(path string) (ServiceDefinition, error) {
	dir, err := os.MkdirTemp("/tmp", "spud-service-")

	if err != nil {
		return ServiceDefinition{}, err
	}

	if _, err := f.Git.Clone(strings.TrimPrefix(path, "git+"), dir); err != nil {
		return ServiceDefinition{}, err
	}

	return NewFileDefinitionFetcher().GetDefinition((dir + "/service.yml"))
}