// NewSite creates a new hugo site and initializes a structured Hugo directory.
func NewSite(cmd *cobra.Command, args []string) {
	if len(args) < 1 {
		cmd.Usage()
		jww.FATAL.Fatalln("path needs to be provided")
	}

	createpath, err := filepath.Abs(filepath.Clean(args[0]))
	if err != nil {
		cmd.Usage()
		jww.FATAL.Fatalln(err)
	}

	if x, _ := helpers.Exists(createpath, hugofs.SourceFs); x {
		y, _ := helpers.IsDir(createpath, hugofs.SourceFs)
		if z, _ := helpers.IsEmpty(createpath, hugofs.SourceFs); y && z {
			jww.INFO.Println(createpath, "already exists and is empty")
		} else {
			jww.FATAL.Fatalln(createpath, "already exists and is not empty")
		}
	}

	mkdir(createpath, "layouts")
	mkdir(createpath, "content")
	mkdir(createpath, "archetypes")
	mkdir(createpath, "static")
	mkdir(createpath, "data")

	createConfig(createpath, configFormat)
}

// TODO: Consider calling doNewSite() instead?
func createSiteFromJekyll(jekyllRoot, targetDir string, force bool) error {
	fs := hugofs.Source()
	if exists, _ := helpers.Exists(targetDir, fs); exists {
		if isDir, _ := helpers.IsDir(targetDir, fs); !isDir {
			return errors.New("Target path \"" + targetDir + "\" already exists but not a directory")
		}

		isEmpty, _ := helpers.IsEmpty(targetDir, fs)

		if !isEmpty && !force {
			return errors.New("Target path \"" + targetDir + "\" already exists and is not empty")
		}
	}

	jekyllConfig := loadJekyllConfig(jekyllRoot)

	// Crude test to make sure at least one of _drafts/ and _posts/ exists
	// and is not empty.
	hasPostsOrDrafts := false
	postsDir := filepath.Join(jekyllRoot, "_posts")
	draftsDir := filepath.Join(jekyllRoot, "_drafts")
	for _, d := range []string{postsDir, draftsDir} {
		if exists, _ := helpers.Exists(d, fs); exists {
			if isDir, _ := helpers.IsDir(d, fs); isDir {
				if isEmpty, _ := helpers.IsEmpty(d, fs); !isEmpty {
					hasPostsOrDrafts = true
				}
			}
		}
	}
	if !hasPostsOrDrafts {
		return errors.New("Your Jekyll root contains neither posts nor drafts, aborting.")
	}

	mkdir(targetDir, "layouts")
	mkdir(targetDir, "content")
	mkdir(targetDir, "archetypes")
	mkdir(targetDir, "static")
	mkdir(targetDir, "data")
	mkdir(targetDir, "themes")

	createConfigFromJekyll(targetDir, "yaml", jekyllConfig)

	copyJekyllFilesAndFolders(jekyllRoot, filepath.Join(targetDir, "static"))

	return nil
}

func doNewSite(basepath string, force bool) error {
	dirs := []string{
		filepath.Join(basepath, "layouts"),
		filepath.Join(basepath, "content"),
		filepath.Join(basepath, "archetypes"),
		filepath.Join(basepath, "static"),
		filepath.Join(basepath, "data"),
		filepath.Join(basepath, "themes"),
	}

	if exists, _ := helpers.Exists(basepath, hugofs.Source()); exists {
		if isDir, _ := helpers.IsDir(basepath, hugofs.Source()); !isDir {
			return errors.New(basepath + " already exists but not a directory")
		}

		isEmpty, _ := helpers.IsEmpty(basepath, hugofs.Source())

		switch {
		case !isEmpty && !force:
			return errors.New(basepath + " already exists and is not empty")

		case !isEmpty && force:
			all := append(dirs, filepath.Join(basepath, "config."+configFormat))
			for _, path := range all {
				if exists, _ := helpers.Exists(path, hugofs.Source()); exists {
					return errors.New(path + " already exists")
				}
			}
		}
	}

	for _, dir := range dirs {
		hugofs.Source().MkdirAll(dir, 0777)
	}

	createConfig(basepath, configFormat)

	jww.FEEDBACK.Printf("Congratulations! Your new Hugo site is created in %q.\n\n", basepath)
	jww.FEEDBACK.Println(`Just a few more steps and you're ready to go:

1. Download a theme into the same-named folder. Choose a theme from https://themes.gohugo.io or
   create your own with the "hugo new theme <THEMENAME>" command
2. Perhaps you want to add some content. You can add single files with "hugo new <SECTIONNAME>/<FILENAME>.<FORMAT>"
3. Start the built-in live server via "hugo server"

For more information read the documentation at https://gohugo.io.`)

	return nil
}

func doNewSite(basepath string, force bool) error {
	dirs := []string{
		filepath.Join(basepath, "layouts"),
		filepath.Join(basepath, "content"),
		filepath.Join(basepath, "archetypes"),
		filepath.Join(basepath, "static"),
		filepath.Join(basepath, "data"),
		filepath.Join(basepath, "themes"),
	}

	if exists, _ := helpers.Exists(basepath, hugofs.Source()); exists {
		if isDir, _ := helpers.IsDir(basepath, hugofs.Source()); !isDir {
			return errors.New(basepath + " already exists but not a directory")
		}

		isEmpty, _ := helpers.IsEmpty(basepath, hugofs.Source())

		switch {
		case !isEmpty && !force:
			return errors.New(basepath + " already exists and is not empty")

		case !isEmpty && force:
			all := append(dirs, filepath.Join(basepath, "config."+configFormat))
			for _, path := range all {
				if exists, _ := helpers.Exists(path, hugofs.Source()); exists {
					return errors.New(path + " already exists")
				}
			}
		}
	}

	for _, dir := range dirs {
		hugofs.Source().MkdirAll(dir, 0777)
	}

	createConfig(basepath, configFormat)

	jww.FEEDBACK.Printf("Congratulations! Your new Hugo site is created in %s.\n\n", basepath)
	jww.FEEDBACK.Println(nextStepsText())

	return nil
}

func doNewSite(basepath string, force bool) error {
	dirs := []string{
		filepath.Join(basepath, "layouts"),
		filepath.Join(basepath, "content"),
		filepath.Join(basepath, "archetypes"),
		filepath.Join(basepath, "static"),
		filepath.Join(basepath, "data"),
		filepath.Join(basepath, "themes"),
	}

	if exists, _ := helpers.Exists(basepath, hugofs.SourceFs); exists {
		if isDir, _ := helpers.IsDir(basepath, hugofs.SourceFs); !isDir {
			return errors.New(basepath + " already exists but not a directory")
		}

		isEmpty, _ := helpers.IsEmpty(basepath, hugofs.SourceFs)

		switch {
		case !isEmpty && !force:
			return errors.New(basepath + " already exists and is not empty")

		case !isEmpty && force:
			all := append(dirs, filepath.Join(basepath, "config."+configFormat))
			for _, path := range all {
				if exists, _ := helpers.Exists(path, hugofs.SourceFs); exists {
					return errors.New(path + " already exists")
				}
			}
		}
	}

	for _, dir := range dirs {
		hugofs.SourceFs.MkdirAll(dir, 0777)
	}

	createConfig(basepath, configFormat)

	return nil
}