main.go

package main

import (
	"html/template"
	"io/ioutil"
	"log"
	"net/http"
	"regexp"

	"github.com/gin-gonic/gin"
)

type Page struct {
	Title  string
	Body   []byte
	CoBody []byte
}
type GinaOut struct {
	Id   string
	Data string
}

var GinaoutPUT = []GinaOut{
	{Id: "{{.title}}", Data: "{{.ioutil.ReadFile({.title}+.txt)}}"},
}

func (p *Page) save() error {
	filename := p.Title + ".txt"
	return ioutil.WriteFile(filename, p.Body, 0600)
}
func MainHandler(w http.ResponseWriter, r *http.Request, title string) {
	var templates = template.Must(template.ParseFiles("Main.html"))
	templates.Execute(w, "Main.html")
}
func loadPage(title string) (*Page, error) {

	filename := title + ".txt"
	body, err := ioutil.ReadFile(filename)
	if err != nil {
		return nil, err
	}
	filegame := "CO" + title + ".txt"
	Cbody, err := ioutil.ReadFile(filegame)
	return &Page{Title: title, Body: body, CoBody: Cbody}, nil
}

func viewHandler(w http.ResponseWriter, r *http.Request, title string) {
	p, err := loadPage(title)
	if err != nil {
		http.Redirect(w, r, "/edit/"+title, http.StatusFound)
		return
	}
	renderTemplate(w, "view", p)
}

func editHandler(w http.ResponseWriter, r *http.Request, title string) {
	p, err := loadPage(title)
	if err != nil {
		p = &Page{Title: title}
	}
	renderTemplate(w, "edit", p)
}

func saveHandler(w http.ResponseWriter, r *http.Request, title string) {
	body := r.FormValue("body")
	Cbody := r.FormValue("cbody")
	p := &Page{Title: title, Body: []byte(body), CoBody: []byte(Cbody)}
	err := p.save()
	if err != nil {
		http.Error(w, err.Error(), http.StatusInternalServerError)
		return
	}
	http.Redirect(w, r, "/view/"+title, http.StatusFound)
}

var templates = template.Must(template.ParseFiles("edit.html", "view.html", "main.html"))

func renderTemplate(w http.ResponseWriter, tmpl string, p *Page) {
	err := templates.ExecuteTemplate(w, tmpl+".html", p)
	if err != nil {
		http.Error(w, err.Error(), http.StatusInternalServerError)
	}
}

var validPath = regexp.MustCompile("^/(edit|save|view)/([a-zA-Z0-9]+)$")
var legalIndex = regexp.MustCompile("^/$")

func makeHandler(fn func(http.ResponseWriter, *http.Request, string)) http.HandlerFunc {
	return func(w http.ResponseWriter, r *http.Request) {
		m := validPath.FindStringSubmatch(r.URL.Path)
		if m == nil {
			http.NotFound(w, r)
			return
		}
		fn(w, r, m[2])
	}
}
func IndexHandler(fn func(http.ResponseWriter, *http.Request, string)) http.HandlerFunc {
	return func(w http.ResponseWriter, r *http.Request) {
		m := legalIndex.FindStringSubmatch(r.URL.Path)
		if m == nil {
			http.NotFound(w, r)
			return
		}
		fn(w, r, "main")
	}
}
func main() {
	http.HandleFunc("/view/", makeHandler(viewHandler))
	http.HandleFunc("/edit/", makeHandler(editHandler))
	http.HandleFunc("/save/", makeHandler(saveHandler))
	http.HandleFunc("/", IndexHandler(MainHandler))
	log.Fatal(http.ListenAndServe(":3000", nil))
	router := gin.Default()
	router.GET("/Fetch/:Id")
}