package gitearemote

import (
	"fmt"
	"math"
	"strconv"
	"strings"

	"code.gitea.io/sdk/gitea"
	"gitea.libretechconsulting.com/rmcguire/git-project-manager/internal/remotes/projects"
	"gitea.libretechconsulting.com/rmcguire/git-project-manager/internal/remotes/remote"
)

func (r *GiteaRemote) ReposToProjects(repos []*gitea.Repository) []*projects.Project {
	pList := make([]*projects.Project, len(repos))
	for i, repo := range repos {
		langs, _ := r.GetRepoLanguages(repo)
		owner, name := GetOwnerRepo(repo.FullName)
		project := &projects.Project{
			ID:                int(repo.ID),
			Owner:             owner,
			Description:       repo.Description,
			SSHURLToRepo:      repo.SSHURL,
			HTTPURLToRepo:     repo.CloneURL,
			WebURL:            repo.HTMLURL,
			Name:              repo.Name,
			NameWithNamespace: repo.FullName,
			Path:              name,
			AvatarURL:         repo.AvatarURL,
			PathWithNamespace: repo.FullName,
			LastActivityAt:    repo.Updated,
			Remote:            r.info.Host,
			Languages:         langs,
		}
		pList[i] = project
	}
	return pList
}

func (r *GiteaRemote) GetRepoLanguages(repo *gitea.Repository) (*projects.ProjectLanguages, error) {
	pLangs := projects.NewProjectLanguages()

	owner, repoName := GetOwnerRepo(repo.FullName)
	langs, _, err := r.api.GetRepoLanguages(owner, repoName)

	if err != nil {
		return nil, err
	}

	var totalLines int64
	for _, v := range langs {
		totalLines += v
	}

	for k, v := range langs {
		pcnt := float64(v) / float64(totalLines) * 100
		pcnt = math.Round(pcnt*100) / 100
		pLangs.AddLanguage(&projects.ProjectLanguage{Name: k, Percentage: float32(pcnt)})
	}

	return pLangs, nil
}

// Simply returns the owner (user or org) of a repo
// and its name in strings
func GetOwnerRepo(fullName string) (string, string) {
	var owner, repo string
	parts := strings.Split(fullName, "/")
	if len(parts) > 1 {
		owner = parts[0]
		repo = parts[1]
	}
	return owner, repo
}

func (r *GiteaRemote) GetNumProjects(opts *remote.RemoteQueryOpts) int {
	var projects int
	r.setClient()

	_, resp, err := r.api.SearchRepos(gitea.SearchRepoOptions{ListOptions: gitea.ListOptions{PageSize: 1}})
	if err != nil {
		fmt.Println(err)
		return -1
	}

	projects, _ = strconv.Atoi(resp.Header.Get("X-Total-Count"))
	return projects
}