// staletea
// Copyright (C) 2020 Jonas Franz
//
// This program is free software: you can redistribute it and/or modify
// it under the terms of the GNU General Public License as published by
// the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.
//
// This program is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
// GNU General Public License for more details.

// You should have received a copy of the GNU General Public License
// along with this program. If not, see <http://www.gnu.org/licenses/>.

package loader

import (
	"bytes"
	"code.gitea.io/sdk/gitea"
	"gitea.com/jonasfranz/staletea/config"
	"gopkg.in/yaml.v2"
)

func NewGiteaLoader(url, token string) Loader {
	return &GiteaLoader{
		client: gitea.NewClient(url, token),
	}
}

type GiteaLoader struct {
	client *gitea.Client
}

func (l *GiteaLoader) LoadRepositories() ([]*Repository, error) {
	repos, err := l.client.ListMyRepos()
	if err != nil {
		return nil, err
	}
	convertedRepos := make([]*Repository, len(repos))
	for index, repo := range repos {
		convertedRepos[index] = &Repository{
			ID:           repo.ID,
			Owner:        repo.Owner.UserName,
			Name:         repo.Name,
			ConfigBranch: repo.DefaultBranch,
		}
	}
	return convertedRepos, nil
}

func (l *GiteaLoader) DownloadConfig(repo *Repository) (*RepositoryConfig, error) {
	file, err := l.client.GetFile(repo.Owner, repo.Name, repo.ConfigBranch, config.RepositoryConfigFileName.Get().(string))
	if err != nil {
		return nil, err
	}
	repoConfig := new(RepositoryConfig)
	if err := yaml.NewDecoder(bytes.NewReader(file)).Decode(repoConfig); err != nil {
		return nil, err
	}
	return repoConfig, nil
}