package filetree

import (
	"fmt"
	"local/notes-server/config"
	"os"
	"path"
	"strings"
)

type Path struct {
	Local    string
	HREF     string
	Base     string
	BaseHREF string
}

func NewPathFromLocal(p string) Path {
	splits := strings.SplitN(p, path.Base(config.Root)+"/", 2)
	href := splits[0]
	if len(splits) > 1 && (splits[0] == "" || splits[0] == "/") {
		href = splits[1]
	}
	href = path.Join("/notes", href)
	return NewPathFromURL(href)
}

func NewPathFromURL(p string) Path {
	p = path.Clean(p)
	base := path.Base(p)
	href := p
	local := strings.TrimPrefix(p, "/")
	locals := strings.SplitN(local, "/", 2)
	local = locals[0]
	if len(locals) > 1 {
		local = locals[1]
	}
	baseHREF := local
	local = path.Join(config.Root, local)
	if strings.Trim(p, "/") == base {
		local = config.Root
		baseHREF = "/"
	}
	return Path{
		Base:     base,
		HREF:     href,
		Local:    local,
		BaseHREF: baseHREF,
	}
}

func (p Path) MultiLink() string {
	href := p.BaseHREF
	href = strings.TrimPrefix(href, "/")
	href = strings.TrimSuffix(href, "/")
	href = path.Join("notes/", href)
	segments := strings.Split(href, "/")
	full := ""
	for i := range segments {
		href := "/" + strings.Join(segments[:i], "/") + "/"
		href += segments[i]
		href = path.Clean(href)
		base := segments[i]
		add := fmt.Sprintf(`/<a href=%q>%s</a>`, href, base)
		full += add
	}
	return full
}

func (p Path) LI() string {
	return fmt.Sprintf(`<li><a href=%q>%s</a></li>`, p.HREF, p.Base)
}

func (p Path) IsDir() bool {
	stat, err := os.Stat(p.Local)
	return err == nil && stat.IsDir()
}

func (p Path) IsFile() bool {
	stat, err := os.Stat(p.Local)
	return err == nil && !stat.IsDir()
}

func (p Path) String() string {
	return fmt.Sprintf(`[Local:%s HREF:%s Base:%s]`, p.Local, p.HREF, p.Base)
}