package ramblings

import (
	"html/template"
	"log"
	"net/http"
	"os"
	"path/filepath"
	"strings"

	"golang.org/x/text/cases"
	"golang.org/x/text/language"
)

type Ramblings []Rambles

type Rambles struct {
	Title string
	Link string
	Content template.HTML
}

type RamblingsParser struct {
	path string
}

func NewParser(path string) *RamblingsParser {
	rp := RamblingsParser{
		path: path,
	}
	return &rp
}

func (rp *RamblingsParser) GetRamblings() (rs Ramblings) {
	entries, err := os.ReadDir(rp.path)
	if err != nil {
		log.Fatal(err)
	}

	for _, ent := range entries {
		if ent.IsDir() {
			continue
		}

		title := ent.Name()
		title = strings.ReplaceAll(title, "_", " ")
		title = strings.ReplaceAll(title, "-", " ")
		ext := filepath.Ext(ent.Name())
		title = strings.TrimSuffix(title ,ext)
		
		caser := cases.Title(language.AmericanEnglish)
		title = caser.String(title)

		fp := filepath.Join(rp.path, ent.Name())
		contents, err := os.ReadFile(fp)
		if err != nil {
			log.Fatal(err)
		}

		rs = append(rs, Rambles{
			Title: title,
			Link: template.HTMLEscapeString(ent.Name()),
			Content: template.HTML(string(contents)),
		})
	}

	return
}

func NewHandler(ramble Rambles) func(w http.ResponseWriter, r *http.Request) {
	return func(w http.ResponseWriter, r *http.Request) {
		w.Write([]byte(ramble.Content))
	}
}