chuno.go

// Package chuno is instant preview server written in Go
package chuno

import (
	"fmt"
	"log"
	"net/http"
	"os"
	// "path/filepath"
)

// shareing variable
var content []byte

var (
	// Path is markdown file path to preview.
	Path   string
	isDark = false
)

func handler(w http.ResponseWriter, r *http.Request) {
	content, err := load(Path)
	if err != nil {
		log.Fatal(err)
		os.Exit(1)
	}

	rendred, err := render(content, isDark)
	if err != nil {
		log.Fatal(err)
		os.Exit(1)
	}

	w.Write(rendred)
}

func strContains(arr []string, str string) bool {
	for _, v := range arr {
		if v == str {
			return true
		}
	}
	return false
}

// LaunchPreviewServer is launch preview server.
func LaunchPreviewServer(path string, port int, darkmode bool) error {
	Path = path
	isDark = darkmode

	strPort := fmt.Sprintf(":%d", port)
	// Start setver
	go watch(path)
	http.HandleFunc("/", handler)
	fmt.Println("🌸 Server is starting at http://localhost" + strPort)
	err := http.ListenAndServe(strPort, nil)
	if err != nil {
		log.Fatal(err)
		return err
	}
	return nil
}

// Build is rendoring MarkDown to HTML
func Build(path string, isDark bool) ([]byte, error) {
	content, err := load(path)
	if err != nil {
		log.Fatal("Can't open file", err)
	}

	html, err := render(content, isDark)
	if err != nil {
		log.Fatal("Error in rendering.")
		return []byte(""), err
	}

	return html, nil
}