package forgepb

import (
	"os"
	"path/filepath"
	"strings"

	"go.wit.com/log"
)

func (f *Forge) ScanGoSrc() (bool, error) {
	dirs, err := gitDirectories(f.goSrc)
	if err != nil {
		return false, err
	}

	for _, dir := range dirs {
		if strings.HasPrefix(dir, f.goSrc) {
			gopath := strings.TrimPrefix(dir, f.goSrc)
			gopath = strings.Trim(gopath, "/")
			// log.Info("ScanGoSrc()  ok:", f.goSrc, gopath)
			newr, err := f.Repos.NewGoPath(f.goSrc, gopath)
			if err != nil {
				log.Log(FORGEPBWARN, "init failed", err)
				panic("crapnuts")
			}
			log.Info("init worked for", newr.GoPath)
			// try to guess what the 'master' branch is

		} else {
			log.Log(FORGEPBWARN, "ScanGoSrc() bad:", dir)
		}
	}
	return true, err
}

func gitDirectories(srcDir string) ([]string, error) {
	var all []string
	err := filepath.Walk(srcDir, func(path string, info os.FileInfo, err error) error {
		if err != nil {
			log.Log(FORGEPBWARN, "Error accessing path:", path, err)
			return nil
		}

		// Check if the path is a directory and has a .git subdirectory
		if info.IsDir() && IsGitDir(path) {
			all = append(all, path)
		}

		return nil
	})

	if err != nil {
		log.Log(FORGEPBWARN, "Error walking the path:", srcDir, err)
	}

	return all, err
}

/*
// rill is awesome. long live rill
func rillAddDirs(gopaths []string) {
	// Convert a slice of user IDs into a channel
	ids := rill.FromSlice(gopaths, nil)

	// Read users from the API.
	// Concurrency = 20
	dirs := rill.Map(ids, 20, func(id string) (*repolist.RepoRow, error) {
		return me.repos.View.FindByName(id), nil
	})

	// Activate users.
	// Concurrency = 10
	err := rill.ForEach(dirs, 10, func(repo *repolist.RepoRow) error {
		fmt.Printf("Repo found : %s\n", repo.GoPath())
		repo.Run([]string{"git", "pull"})
		return nil
	})

	// Handle errors
	fmt.Println("Error:", err)
}
*/

// IsGitDir checks if a .git directory exists inside the given directory
func IsGitDir(dir string) bool {
	gitDir := filepath.Join(dir, ".git")
	info, err := os.Stat(gitDir)
	if os.IsNotExist(err) {
		return false
	}
	return info.IsDir()
}

// attempt's to guess at what master is.
// TODO: fix this properly
func (repo *Repo) guessMainWorkingName() {
	if repo.IsBranch("guimaster") {
		return
	}
	if repo.IsBranch("master") {
		return
	}
	if rs.TagExists("main") {
		return
	}

	// figure out what to do here
	rs.mainWorkingName.SetText("FIXME")
	rs.mainBranchVersion.SetLabel("FIXME")
}

func (rs *RepoStatus) guessDevelWorkingName() {
	if rs.TagExists("guidevel") {
		rs.develWorkingName.SetValue("guidevel")
		rs.develBranchVersion.SetLabel("guidevel")
		return
	}
	if rs.TagExists("devel") {
		rs.develWorkingName.SetValue("devel")
		rs.develBranchVersion.SetLabel("devel")
		return
	}

	// figure out what to do here
	rs.develWorkingName.SetValue("develFIXME")
	rs.develBranchVersion.SetLabel("develFIXME")
}

func (rs *RepoStatus) setUserWorkingName() {
	usr, _ := user.Current()
	uname := usr.Username
	if rs.TagExists(uname) {
		rs.userWorkingName.SetValue(uname)
		rs.userBranchVersion.SetLabel(uname)
		return
	}
	rs.userWorkingName.SetValue("need to create " + uname)
	rs.userBranchVersion.SetLabel("need to create " + uname)
}