package main

import (
	"encoding/json"

	"src.opensuse.org/autogits/common"
	"src.opensuse.org/autogits/common/gitea-generated/models"
)

//go:generate mockgen -source=maintainership.go -destination=mock/maintainership.go -typed

const ProjectKey = ""

type MaintainershipMap map[string][]string

type GiteaMaintainershipInterface interface {
	FetchMaintainershipFile(org, prjGit, branch string) ([]byte, error)
	GetPullRequestAndReviews(org, pkg string, num int64) (*models.PullRequest, []*models.PullReview, error)
}

func parseMaintainershipData(data []byte) (MaintainershipMap, error) {
	maintainers := make(MaintainershipMap)
	if err := json.Unmarshal(data, &maintainers); err != nil {
		return nil, err
	}

	return maintainers, nil
}

func ProjectMaintainershipData(gitea GiteaMaintainershipInterface, org, prjGit, branch string) (MaintainershipMap, error) {
	data, err := gitea.FetchMaintainershipFile(org, prjGit, branch)
	if err != nil || data == nil {
		return nil, err
	}

	return parseMaintainershipData(data)
}

func MaintainerListForProject(maintainers MaintainershipMap) []string {
	m, found := maintainers[ProjectKey]
	if !found {
		return nil
	}

	return m
}

func MaintainerListForPackage(maintainers MaintainershipMap, pkg string) []string {
	pkgMaintainers := maintainers[pkg]
	prjMaintainers := maintainers[ProjectKey]

prjMaintainer:
	for _, prjm := range prjMaintainers {
		for i := range pkgMaintainers {
			if pkgMaintainers[i] == prjm {
				continue prjMaintainer
			}
		}
		pkgMaintainers = append(pkgMaintainers, prjm)
	}

	return pkgMaintainers
}

func CheckIfMaintainersApproved(gitea GiteaMaintainershipInterface, config common.AutogitConfig, prjGitPRNumber int64) (bool, error) {
	gitea.GetPullRequestAndReviews(config.Organization, config.GitProjectName, prjGitPRNumber)
	gitea.FetchMaintainershipFile(config.Organization, config.GitProjectName, config.Branch)

	/*
		pr, reviews, _ := gitea.GetPullRequestAndReviews(config.Organization, config.GitProjectName, prjGitPRNumber)
		data, _ := gitea.FetchMaintainershipFile(config.Organization, config.GitProjectName, config.Branch)

		maintainers, _ := parseMaintainershipData(data)
	*/
	return false, nil
}