package caddyhugo

import (
	"fmt"
	"os"
	"path"
	"path/filepath"
	"sort"
	"time"

	"github.com/gohugoio/hugo/hugolib"
)

type Content struct {
	Filename string
	Modtime  time.Time
	Metadata *Metadata
}

type Metadata struct {
	Title         string
	Path          string
	Date, Lastmod time.Time
}

func ListContent() ([]Content, error) {
	return nil, nil
}

func GetContent(siteRoot string, sites *hugolib.HugoSites) ([]Content, error) {
	var files = []Content{}

	err := filepath.Walk(path.Join(siteRoot, "content"), func(name string, fi os.FileInfo, err error) error {
		if err != nil {
			return err
		}

		if fi.IsDir() {
			return nil
		}

		name, err = filepath.Rel(siteRoot, name)
		if err != nil {
			return err
		}

		files = append(files, Content{
			Filename: name,
			Modtime:  fi.ModTime(),
		})
		return nil
	})

	sort.Slice(files, func(i, j int) bool {
		return files[i].Modtime.Before(files[j].Modtime)
	})

	if err != nil {
		fmt.Println(err)
		return nil, err
	}

	pages := sites.Pages()
	for _, page := range pages {
		if page.Kind == hugolib.KindPage {
			for i, file := range files {
				path := path.Join("content", page.Source.Path())
				if file.Filename == path {
					files[i].Metadata = &Metadata{
						Title:   page.Title,
						Path:    path,
						Date:    page.Date,
						Lastmod: page.Lastmod,
					}
					break
				}
			}
		}
	}

	return files, nil
}